2025-01648 Accepting SAFCA’s Urban Level of Flood Protection Reports (LR25-006) Part 3 — Sacramento City Council, October 21, 2025 (part 4 of 4)

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EXHIBIT 3A1. Table Summary of Encroachments (non-linear) American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4 American River South Levee AR04 1000+11 Landscaping Trees Sac Housing and Redevelopment Agency 1795 American River South Levee AR04 1000+50 Landscaping Vegetation Blunk Assoc. Architects, Days Inn Motel3805 American River South Levee AR04 1001+22 Access Gate4367 American River South Levee AR04 1001+23 Gate Access gate3222 American River South Levee AR04 1002+73 Other Electrical Equipment4366 American River South Levee AR04 1007+54 Pole Call box3226 American River South Levee AR04 1008+19 Valve Positive Closure Vault1891 American River South Levee AR04 1008+26 Valve Positive Closure Vault City of Sacramento3221 American River South Levee AR04 1009+09 Pole Utility4365 American River South Levee AR04 1009+52 Gate3446 American River South Levee AR04 1009+80 Bridge1986 American River South Levee AR04 1009+98 Pole Utility1985 American River South Levee AR04 1010+12 Pole Utility1987 American River South Levee AR04 1011+76 Pole4363 American River South Levee AR04 1011+87 Gate Bollard4362 American River South Levee AR04 1011+92 Gate1788 American River South Levee AR04 1012+57 Bridge Road1988 American River South Levee AR04 1013+48 Other Utility U4364 American River South Levee AR04 1014+84 Gate1995 American River South Levee AR04 1015+07 Other1990 American River South Levee AR04 1019+67 Pole Utility1825 American River South Levee AR04 1039+23 Pole SMUD4361 American River South Levee AR04 1042+20 Landscaping Tree1993 American River South Levee AR04 1044+69 Well Monitoring Well1994 American River South Levee AR04 1044+78 Well Monitoring Well1992 American River South Levee AR04 1044+83 Well Monitoring Well4360 American River South Levee AR04 1046+06 Landscaping Tree1911 American River South Levee AR04 1047+93 Pump Station Drainage City of Sacramento1864 American River South Levee AR04 1048+21 Valve Siphon Breaker Vault City of Sacramento1842 American River South Levee AR04 1048+42 Stairway Concrete City of Sacramento4359 American River South Levee AR04 1064+20 Landscaping Trees4358 American River South Levee AR04 1067+22 Landscaping Tree4350 American River South Levee AR04 1071+84 Gate2427 American River South Levee AR04 1072+67 Structure Abandoned1880 American River South Levee AR04 1074+12 Boating Facility Dock1996 American River South Levee AR04 1078+12 Structure Abandoned1998 American River South Levee AR04 1078+38 Well Monitoring Well1997 American River South Levee AR04 1078+44 Well Monitoring Well

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
1999 American River South Levee AR04 1078+50 Well Monitoring Well3445 American River South Levee AR04 1097+42 Landscaping4356 American River South Levee AR04 1098+49 Pole2000 American River South Levee AR04 1098+63 Pole Utility4351 American River South Levee AR04 1098+88 Gate4353 American River South Levee AR04 1098+96 Pole4352 American River South Levee AR04 1099+05 Gate4357 American River South Levee AR04 1099+11 Pole2408 American River South Levee AR04 1099+56 Bridge Road2409 American River South Levee AR04 1099+77 Bridge Railroad2404 American River South Levee AR04 1100+03 Other Traffic Control Box2405 American River South Levee AR04 1100+16 Valve Manhole - Telephone2406 American River South Levee AR04 1100+18 Valve Manhole - Telephone2403 American River South Levee AR04 1100+67 Other Electrical box2407 American River South Levee AR04 1100+83 Bridge Road2400 American River South Levee AR04 1101+34 Other Cal Trans Street2399 American River South Levee AR04 1101+35 Other Traffic Control Box2397 American River South Levee AR04 1101+37 Pole Light2401 American River South Levee AR04 1101+38 Other Abandoned Electrical2398 American River South Levee AR04 1101+39 Other Electrical box1878 American River South Levee AR04 1101+56 Other Temporary Bridge Lord & Bishop, Inc4344 American River South Levee AR04 1102+15 Gate2395 American River South Levee AR04 1102+31 Pole Utility4345 American River South Levee AR04 1102+44 Pole Overhead Utility2394 American River South Levee AR04 1103+94 Pole Utility2393 American River South Levee AR04 1105+85 Pole Utility2390 American River South Levee AR04 1107+86 Pole Utility2388 American River South Levee AR04 1109+88 Pole Utility2387 American River South Levee AR04 1110+08 Pole Utility2389 American River South Levee AR04 1110+31 Pole Utility3444 American River South Levee AR04 1111+25 Bridge Bike Path2384 American River South Levee AR04 1111+90 Pole Utility4343 American River South Levee AR04 1112+49 Gate3443 American River South Levee AR04 1112+59 Access Gate2383 American River South Levee AR04 1113+27 Pole Utility4342 American River South Levee AR04 1116+93 Gate4341 American River South Levee AR04 1117+05 Gate4340 American River South Levee AR04 1117+24 Gate

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
1966 American River South Levee AR04 1118+30 Bridge Pedestrian Sacramento County2377 American River South Levee AR04 1118+30 Pole radio antenna 2379 American River South Levee AR04 1118+30 Bridge Railroad2376 American River South Levee AR04 1121+79 Other Utility Tower2375 American River South Levee AR04 1122+76 Other Utility Tower3442 American River South Levee AR04 1139+28 Access Gate4339 American River South Levee AR04 1139+29 Gate2374 American River South Levee AR04 1141+75 Other Bollard2372 American River South Levee AR04 1142+05 Stairway Concrete Private2368 American River South Levee AR04 1142+19 Other Pump1818 American River South Levee AR04 1142+51 Other Sand Processing Plant Hard Materials Co.2362 American River South Levee AR04 1143+27 Pole Cable attached2358 American River South Levee AR04 1143+99 Other Tank4338 American River South Levee AR04 1146+02 Landscaping Tree2354 American River South Levee AR04 1146+66 Pole Utility2353 American River South Levee AR04 1146+78 Structure Water Tank2350 American River South Levee AR04 1148+99 Pole Utility, Abandoned3441 American River South Levee AR04 1150+90 Access Gate4337 American River South Levee AR04 1150+94 Gate2349 American River South Levee AR04 1151+90 Pole Light2348 American River South Levee AR04 1152+89 Pole Light2347 American River South Levee AR04 1153+89 Pole Light2346 American River South Levee AR04 1154+85 Pole Light2345 American River South Levee AR04 1157+33 Well Monitoring Well2344 American River South Levee AR04 1157+63 Other Control box4335 American River South Levee AR04 1158+06 Gate4336 American River South Levee AR04 1158+18 Gate2410 American River South Levee AR04 1158+31 Other Well2412 American River South Levee AR04 1166+26 Valve Gas2411 American River South Levee AR04 1166+69 Control Structure Gas PG&E?2426 American River South Levee AR04 1166+75 Well Monitoring Well2413 American River South Levee AR04 1167+19 Valve Gas2414 American River South Levee AR04 1168+48 Other DI2425 American River South Levee AR04 1173+97 Well Monitoring Well4333 American River South Levee AR04 1177+49 Other4334 American River South Levee AR04 1177+98 Other2424 American River South Levee AR04 1180+70 Well Monitoring Well2423 American River South Levee AR04 1186+88 Well Monitoring Well

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2416 American River South Levee AR04 1188+22 Other Steel Beams2417 American River South Levee AR04 1188+39 Valve Positive Closure Vault U2421 American River South Levee AR04 1191+79 Well Monitoring Well2420 American River South Levee AR04 1192+04 Well Monitoring Well4327 American River South Levee AR04 1194+07 Gate2165 American River South Levee AR04 1194+76 Bridge Railroad4326 American River South Levee AR04 1195+08 Gate4325 American River South Levee AR04 1195+98 Gate1906 American River South Levee AR04 1197+05 Other Access Ramp City of Sacramento2166 American River South Levee AR04 1197+73 Other Electrical Panel2161 American River South Levee AR04 1202+81 Other Monument3437 American River South Levee AR04 1202+83 Access Gate3440 American River South Levee AR04 1203+73 Other Drainage3438 American River South Levee AR04 1203+88 Bridge4322 American River South Levee AR04 1204+00 Other4323 American River South Levee AR04 1204+91 Other2155 American River South Levee AR04 1204+98 Pole Utility3439 American River South Levee AR04 1205+04 Access Gate2156 American River South Levee AR04 1205+07 Valve SWS SRCSD2157 American River South Levee AR04 1205+11 Well Monitoring Well2158 American River South Levee AR04 1205+27 Pole Utility2159 American River South Levee AR04 1205+29 Other Electrical Equipment4321 American River South Levee AR04 1206+55 Other Structure2154 American River South Levee AR04 1206+64 Pole Utility2153 American River South Levee AR04 1206+98 Other Monument1883 American River South Levee AR04 1207+57 Other Pump3429 American River South Levee AR04 1207+69 Pole2151 American River South Levee AR04 1207+80 Valve Siphon Breaker Vault City of Sacramento2150 American River South Levee AR04 1207+89 Stairway Concrete City of Sacramento2149 American River South Levee AR04 1207+91 Stairway Concrete City of Sacramento1803 American River South Levee AR04 1207+92 Stairway Concrete City of Sacramento2168 American River South Levee AR04 1208+51 Pole Utility2169 American River South Levee AR04 1210+15 Pole Utility1844 American River South Levee AR04 1210+53 Landscaping Trees SAFCA3430 American River South Levee AR04 1210+94 Structure2170 American River South Levee AR04 1210+99 Stairway Pedestrian ramp3431 American River South Levee AR04 1211+54 Structure2171 American River South Levee AR04 1211+62 Pole Utility

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3432 American River South Levee AR04 1211+74 Structure3276 American River South Levee AR04 1211+87 Retaining Wall Krsto Vlahovich2172 American River South Levee AR04 1212+36 Stairway Brick Private3277 American River South Levee AR04 1212+53 Retaining Wall Mr. and Mrs. Kafouros2173 American River South Levee AR04 1213+01 Pole Utility3271 American River South Levee AR04 1213+18 Structure Accessory Richard adn Joan Herr2174 American River South Levee AR04 1214+19 Pole Utility2175 American River South Levee AR04 1215+37 Pole Utility2176 American River South Levee AR04 1215+87 Stairway Wood Private3273 American River South Levee AR04 1216+18 Stairway Abandoned Jason and Marisol Richmond2177 American River South Levee AR04 1216+55 Pole Utility4319 American River South Levee AR04 1216+58 Structure Shed 4320 American River South Levee AR04 1216+58 Other Structure4317 American River South Levee AR04 1216+59 Structure She’d4318 American River South Levee AR04 1216+59 Structure Shed2178 American River South Levee AR04 1216+90 Stairway Concrete Carole Paddleford3433 American River South Levee AR04 1217+10 Structure2179 American River South Levee AR04 1217+65 Pole Utility2193 American River South Levee AR04 1217+69 Stairway Wood Private3278 American River South Levee AR04 1218+51 Fence Michael and Kathleen Crooks2180 American River South Levee AR04 1218+85 Stairway Concrete Private2181 American River South Levee AR04 1218+92 Pole Utility2182 American River South Levee AR04 1220+13 Pole Utility3274 American River South Levee AR04 1220+30 Fence Davis Family Living Trust3112 American River South Levee AR04 1220+59 Stairway Wood Shirley Kammeyer and Charlotte Williams4349 American River South Levee AR04 1220+59 Structure3279 American River South Levee AR04 1220+96 Retaining Wall Jane Pearce and Lauren Rive2183 American River South Levee AR04 1221+32 Pole Utility3280 American River South Levee AR04 1221+62 Retaining Wall Mr. and Mrs. Reeder 2184 American River South Levee AR04 1221+72 Stairway Earthen Private3434 American River South Levee AR04 1221+90 Structure3281 American River South Levee AR04 1222+20 Structure Shed2185 American River South Levee AR04 1222+29 Stairway Stone Private2186 American River South Levee AR04 1222+56 Pole Utility3283 American River South Levee AR04 1222+87 Fence George and Francis Ratcliff3435 American River South Levee AR04 1223+32 Structure2187 American River South Levee AR04 1223+39 Stairway Earthen Private3284 American River South Levee AR04 1223+44 Fence Dsack Family LTD Partnership

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2188 American River South Levee AR04 1223+81 Pole Utility4315 American River South Levee AR04 1223+89 Stairway4314 American River South Levee AR04 1223+92 Landscaping Tree3285 American River South Levee AR04 1224+03 Fence Bret Bowman Nycum2189 American River South Levee AR04 1224+16 Stairway Stone Private2190 American River South Levee AR04 1224+79 Stairway Stone Private2191 American River South Levee AR04 1225+24 Pole Utility3286 American River South Levee AR04 1225+32 Fence Shirley Coffelt1902 American River South Levee AR04 1226+02 Stairway Terraces Shirley Coffelt1867 American River South Levee AR04 1226+74 Landscaping Shirley Kammeyer and Charlotte Williams2192 American River South Levee AR04 1227+03 Pole Utility3287 American River South Levee AR04 1227+23 Stairway Ron and Anna Pascal3288 American River South Levee AR04 1228+00 Landscaping Vegetation Franklin and Betty Marnette2195 American River South Levee AR04 1228+86 Stairway Wood Private2194 American River South Levee AR04 1229+21 Pole Utility2196 American River South Levee AR04 1229+53 Stairway Concrete Private2197 American River South Levee AR04 1229+57 Pole Light2198 American River South Levee AR04 1230+20 Stairway Wood Private2199 American River South Levee AR04 1230+60 Pole Utility3289 American River South Levee AR04 1230+86 Retaining Wall Ian and Rose Day3290 American River South Levee AR04 1231+47 Retaining Wall Mr and Mrs O'Hearn2200 American River South Levee AR04 1231+79 Pole Utility3291 American River South Levee AR04 1232+02 Retaining Wall Molly Weinheimer2201 American River South Levee AR04 1232+42 Stairway Concrete Private2202 American River South Levee AR04 1232+71 Stairway Stone Private2203 American River South Levee AR04 1232+97 Pole Utility2204 American River South Levee AR04 1233+27 Stairway Concrete/Wood Thomas and Katherin Witcher2205 American River South Levee AR04 1233+80 Stairway Brick John Williams2206 American River South Levee AR04 1234+13 Pole Utility2207 American River South Levee AR04 1234+62 Stairway Stone Private2209 American River South Levee AR04 1235+34 Stairway Private2208 American River South Levee AR04 1235+35 Pole Utility2211 American River South Levee AR04 1236+47 Stairway Wood William Vogel2210 American River South Levee AR04 1236+50 Pole Utility3436 American River South Levee AR04 1237+22 Structure2212 American River South Levee AR04 1237+56 Stairway Wood Private2213 American River South Levee AR04 1237+67 Pole Utility2214 American River South Levee AR04 1237+98 Stairway Concrete Private

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2215 American River South Levee AR04 1238+61 Stairway Private2216 American River South Levee AR04 1238+79 Pole Utility2217 American River South Levee AR04 1239+01 Stairway Concrete Private2218 American River South Levee AR04 1239+64 Pole Utility2219 American River South Levee AR04 1239+76 Stairway Earthen Private2220 American River South Levee AR04 1240+53 Pole Utility4312 American River South Levee AR04 1241+00 Pole Bollard3293 American River South Levee AR04 1241+43 Retaining Wall Sally Corbett2221 American River South Levee AR04 1241+70 Pole Utility1854 American River South Levee AR04 1242+14 Valve Siphon Breaker Vault City of Sacramento1875 American River South Levee AR04 1242+15 Pump Station Equipment City of Sacramento1836 American River South Levee AR04 1242+18 Valve City of Sacramento4311 American River South Levee AR04 1242+25 Pole Bollard2225 American River South Levee AR04 1242+34 Other Electrical Equipment City of Sacramento2222 American River South Levee AR04 1242+69 Pole Utility2226 American River South Levee AR04 1244+61 Pole Utility3428 American River South Levee AR04 1245+48 Stairway2227 American River South Levee AR04 1245+54 Pole Utility2228 American River South Levee AR04 1246+87 Stairway Wood R Tupper and Patricia Hull2229 American River South Levee AR04 1246+96 Pole Utility2230 American River South Levee AR04 1248+31 Pole Utility2231 American River South Levee AR04 1248+65 Stairway Concrete Block Mary Schmidt2232 American River South Levee AR04 1249+53 Pole Utility2233 American River South Levee AR04 1249+94 Stairway Wood Private1852 American River South Levee AR04 1250+27 Stairway Wood Christopher and Evelyn Carr2234 American River South Levee AR04 1250+28 Stairway Wood Private2235 American River South Levee AR04 1250+61 Pole Utility2236 American River South Levee AR04 1251+11 Stairway Wood Alexander and Joanne Swedlow2237 American River South Levee AR04 1251+73 Pole Utility3294 American River South Levee AR04 1251+82 Structure Shed Harry Pascual and Susan Landi2238 American River South Levee AR04 1253+01 Pole Utility3295 American River South Levee AR04 1253+09 Retaining Wall William Mateo and Mrs. Marian3426 American River South Levee AR04 1254+13 Stairway2239 American River South Levee AR04 1254+35 Pole Utility2240 American River South Levee AR04 1254+67 Stairway Wood Private3296 American River South Levee AR04 1255+12 Fence Donald and Susan Phenix2241 American River South Levee AR04 1255+39 Pole Utility2242 American River South Levee AR04 1256+26 Stairway Concrete Richard and Anna Johnson

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2243 American River South Levee AR04 1256+50 Pole Utility2245 American River South Levee AR04 1257+52 Stairway Wood Elinor Schiro2244 American River South Levee AR04 1257+58 Pole Utility2247 American River South Levee AR04 1258+47 Stairway Wood Private2246 American River South Levee AR04 1258+69 Pole Utility2248 American River South Levee AR04 1259+12 Stairway Wood Private2249 American River South Levee AR04 1259+83 Pole Utility2250 American River South Levee AR04 1259+99 Stairway Concrete Private2251 American River South Levee AR04 1260+91 Pole Utility2252 American River South Levee AR04 1262+01 Pole Utility2253 American River South Levee AR04 1263+08 Pole Utility2254 American River South Levee AR04 1264+73 Pole Utility2255 American River South Levee AR04 1266+71 Pole Utility3297 American River South Levee AR04 1266+94 Fence2258 American River South Levee AR04 1267+51 Pole Utility2257 American River South Levee AR04 1267+93 Stairway Concrete Private2259 American River South Levee AR04 1268+79 Pole Utility2260 American River South Levee AR04 1270+15 Pole Utility4310 American River South Levee AR04 1270+47 Landscaping Tree2261 American River South Levee AR04 1271+62 Pole Utility2262 American River South Levee AR04 1272+92 Pole Utility2067 American River South Levee AR04 1281+16 Pole Utility2068 American River South Levee AR04 1282+76 Pole Utility4309 American River South Levee AR04 1283+45 Landscaping Tree4308 American River South Levee AR04 1283+99 Landscaping Tree2069 American River South Levee AR04 1284+19 Pole Utility4307 American River South Levee AR04 1285+22 Structure2070 American River South Levee AR04 1285+30 Pole Utility2071 American River South Levee AR04 1286+86 Pole Utility3418 American River South Levee AR04 1287+82 Structure2072 American River South Levee AR04 1288+79 Pole Utility3298 American River South Levee AR04 1289+23 Fence3299 American River South Levee AR04 1290+10 Fence2073 American River South Levee AR04 1290+24 Stairway Wood Private2075 American River South Levee AR04 1290+52 Pole Utility2074 American River South Levee AR04 1290+59 Stairway Concrete Private3300 American River South Levee AR04 1290+90 Fence3301 American River South Levee AR04 1291+60 Fence

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2077 American River South Levee AR04 1291+69 Pole Utility2076 American River South Levee AR04 1291+99 Stairway Private1851 American River South Levee AR04 1292+35 Landscaping Terrace Frank and Amelia Puccinelli2078 American River South Levee AR04 1292+46 Stairway Concrete Private2079 American River South Levee AR04 1292+83 Pole Utility2080 American River South Levee AR04 1293+28 Stairway Concrete Private3302 American River South Levee AR04 1293+28 Fence2081 American River South Levee AR04 1293+57 Pole Utility3303 American River South Levee AR04 1293+99 Fence3304 American River South Levee AR04 1294+63 Fence4306 American River South Levee AR04 1294+78 Pole Utility2082 American River South Levee AR04 1295+16 Pole Utility3419 American River South Levee AR04 1295+67 Structure2083 American River South Levee AR04 1295+83 Stairway Concrete Private2084 American River South Levee AR04 1296+18 Pole Utility2085 American River South Levee AR04 1297+11 Pole Utility3305 American River South Levee AR04 1297+52 Fence2086 American River South Levee AR04 1298+10 Structure Building1900 American River South Levee AR04 1298+32 Stairway Brick Mr. Robert Schultz2087 American River South Levee AR04 1298+37 Stairway Brick Private2088 American River South Levee AR04 1298+60 Pole Utility1882 American River South Levee AR04 1298+88 Fence Douglas Moreda / Diane Fishburn2089 American River South Levee AR04 1299+07 Stairway Concrete Block Private2090 American River South Levee AR04 1299+16 Pole Utility2091 American River South Levee AR04 1299+61 Stairway Concrete Block Private2092 American River South Levee AR04 1300+28 Stairway Concrete Block Private3420 American River South Levee AR04 1300+57 Structure2093 American River South Levee AR04 1300+70 Pole Utility2094 American River South Levee AR04 1301+95 Pole Utility2095 American River South Levee AR04 1302+50 Stairway Concrete Private2096 American River South Levee AR04 1302+55 Pole Utility2097 American River South Levee AR04 1303+43 Stairway Brick and Concrete Private2098 American River South Levee AR04 1303+80 Pole Utility2099 American River South Levee AR04 1304+05 Stairway Concrete and Dirt Private3307 American River South Levee AR04 1304+75 Fence3308 American River South Levee AR04 1305+00 Fence2100 American River South Levee AR04 1305+07 Pole Utility2101 American River South Levee AR04 1305+46 Stairway Brick Private

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2102 American River South Levee AR04 1305+91 Stairway Concrete block Private2104 American River South Levee AR04 1306+24 Pole Utility1829 American River South Levee AR04 1306+58 Other Railing Howard S Hyde2103 American River South Levee AR04 1306+60 Stairway Brick Private3309 American River South Levee AR04 1306+73 Structure Shed2105 American River South Levee AR04 1307+35 Stairway Concrete Block Private2106 American River South Levee AR04 1307+42 Pole Utility3310 American River South Levee AR04 1307+74 Fence2107 American River South Levee AR04 1307+99 Stairway Concrete Private3311 American River South Levee AR04 1308+44 Fence2108 American River South Levee AR04 1308+85 Stairway Concrete Block Private2109 American River South Levee AR04 1308+87 Pole Utility3422 American River South Levee AR04 1309+30 Structure4305 American River South Levee AR04 1309+41 Stairway3423 American River South Levee AR04 1310+01 Landscaping2110 American River South Levee AR04 1310+35 Stairway Stone and brick Private2111 American River South Levee AR04 1310+40 Pole Utility3424 American River South Levee AR04 1310+55 Landscaping2112 American River South Levee AR04 1310+69 Stairway Private2113 American River South Levee AR04 1311+24 Stairway Brick Private3425 American River South Levee AR04 1311+36 Landscaping2114 American River South Levee AR04 1311+53 Pole Utility2115 American River South Levee AR04 1311+88 Stairway Brick Private2116 American River South Levee AR04 1312+83 Pole Utility2117 American River South Levee AR04 1312+92 Stairway Brick and Wood Private2119 American River South Levee AR04 1313+86 Valve Manhole California State University, Sacramento2118 American River South Levee AR04 1313+93 Pole Utility2121 American River South Levee AR04 1314+42 Valve Siphon Breaker Vault City of Sacramento2122 American River South Levee AR04 1314+52 Valve Siphon Breaker Vault City of Sacramento2120 American River South Levee AR04 1314+56 Pump Station 5 pumps City of Sacramento2125 American River South Levee AR04 1315+90 Pole Utility3417 American River South Levee AR04 1315+94 Landscaping2124 American River South Levee AR04 1316+69 Pole Utility2126 American River South Levee AR04 1317+49 Other Street Sign2127 American River South Levee AR04 1317+49 Other Street Sign2123 American River South Levee AR04 1317+88 Pole Utility1808 American River South Levee AR04 1319+42 Other Off Ramp Sacramento County, Dept of Parks and Rec4304 American River South Levee AR04 1319+57 Gate

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2128 American River South Levee AR04 1319+59 Pole Utility4302 American River South Levee AR04 1319+60 Gate4303 American River South Levee AR04 1319+62 Gate3510 American River South Levee AR04 1320+05 Bridge2131 American River South Levee AR04 1320+28 Valve Manhole - Communication Pacific Telephone and Telegraph Company4293 American River South Levee AR04 1320+39 Other Pull Box4294 American River South Levee AR04 1320+40 Other Service Enclosure2129 American River South Levee AR04 1320+44 Other Gaging Station4291 American River South Levee AR04 1320+50 Gate4292 American River South Levee AR04 1320+51 Pole Bollard4298 American River South Levee AR04 1320+51 Gate4295 American River South Levee AR04 1320+53 Gate2130 American River South Levee AR04 1320+55 Pole Power4290 American River South Levee AR04 1320+57 Gate2133 American River South Levee AR04 1320+63 Valve Siphon Breaker Vault City of Sacramento1809 American River South Levee AR04 1320+69 Pole Electric SMUD1874 American River South Levee AR04 1320+71 Pole Conduit Department of Water Resources1820 American River South Levee AR04 1320+74 Pole Cable Sacramento Cable Television, Incorporated2132 American River South Levee AR04 1320+91 Pole Utility4296 American River South Levee AR04 1320+92 Other Overhead Utility4297 American River South Levee AR04 1321+18 Landscaping Tree2335 American River South Levee AR04 1325+40 Well Monitoring Well2334 American River South Levee AR04 1325+49 Well Monitoring Well2134 American River South Levee AR04 1325+82 Other Electrical Vault2333 American River South Levee AR04 1326+30 Other Fire Hydrant2332 American River South Levee AR04 1326+52 Pole Light2331 American River South Levee AR04 1327+60 Pole Light2330 American River South Levee AR04 1328+72 Pole Light2329 American River South Levee AR04 1329+67 Pole Light4289 American River South Levee AR04 1330+39 Pole Light4288 American River South Levee AR04 1330+65 Landscaping Tree4287 American River South Levee AR04 1331+05 Pole Light4286 American River South Levee AR04 1331+10 Valve Fire Hydrant4285 American River South Levee AR04 1331+59 Pole Light4284 American River South Levee AR04 1331+90 Landscaping Tree4283 American River South Levee AR04 1332+12 Pole Light4282 American River South Levee AR04 1332+78 Pole Light4281 American River South Levee AR04 1333+38 Pole Light

Page 11 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4280 American River South Levee AR04 1333+73 Valve Fire Hydrant2336 American River South Levee AR04 1338+44 Other DI2323 American River South Levee AR04 1339+64 Other Monument2324 American River South Levee AR04 1339+64 Other Monument2325 American River South Levee AR04 1339+69 Other Monument2326 American River South Levee AR04 1339+70 Other Monument2337 American River South Levee AR04 1339+73 Other DI2327 American River South Levee AR04 1339+76 Other Monument2328 American River South Levee AR04 1339+80 Other Monument2321 American River South Levee AR04 1342+30 Other Monument2319 American River South Levee AR04 1342+31 Other Monument2144 American River South Levee AR04 1342+33 Other Bollard2338 American River South Levee AR04 1342+33 Other Bollards2322 American River South Levee AR04 1342+37 Other Monument2320 American River South Levee AR04 1342+38 Other Monument2143 American River South Levee AR04 1342+45 Stairway Concrete Private2339 American River South Levee AR04 1342+61 Other Monument3376 American River South Levee AR04 1344+07 Valve Manhole - Drainage California State University, Sacramento4279 American River South Levee AR04 1345+72 Other2316 American River South Levee AR04 1345+75 Well Monitoring Well2317 American River South Levee AR04 1345+84 Well Monitoring Well2318 American River South Levee AR04 1345+92 Well Monitoring Well4274 American River South Levee AR04 1346+00 Landscaping Tree4276 American River South Levee AR04 1346+00 Other1895 American River South Levee AR04 1346+55 Structure Building Trustees CA State University/Howard Harris2135 American River South Levee AR04 1346+78 Bridge Pedestrian1850 American River South Levee AR04 1346+87 Bridge Pedestrian City of Sacramento4275 American River South Levee AR04 1347+08 Other1890 American River South Levee AR04 1347+15 Valve Air Release Valves California State University, Sacramento2142 American River South Levee AR04 1347+47 Structure Tank 4271 American River South Levee AR04 1347+70 Landscaping Tree2313 American River South Levee AR04 1348+00 Well Monitoring Well2314 American River South Levee AR04 1348+19 Structure3415 American River South Levee AR04 1348+22 Structure2312 American River South Levee AR04 1348+84 Well Monitoring Well2137 American River South Levee AR04 1349+09 Other Electrical Panel3416 American River South Levee AR04 1349+25 Structure4270 American River South Levee AR04 1349+48 Landscaping Tree

Page 12 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2136 American River South Levee AR04 1350+99 Other Handrail2311 American River South Levee AR04 1351+58 Other Electrical box2310 American River South Levee AR04 1353+04 Pole Light4269 American River South Levee AR04 1353+19 Gate2138 American River South Levee AR04 1354+99 Stairway Concrete Private2309 American River South Levee AR04 1357+26 Valve Air Release Valves City of Sacramento4346 American River South Levee AR04 1359+19 Gate4347 American River South Levee AR04 1359+35 Pole2264 American River South Levee AR04 1359+89 Valve Jacking Shaft SRCSD2281 American River South Levee AR04 1360+59 Valve Gate Valve SRCSD2284 American River South Levee AR04 1360+63 Pole Light2282 American River South Levee AR04 1360+67 Valve Gate Valve SRCSD2283 American River South Levee AR04 1360+72 Other Electrical Equipment2285 American River South Levee AR04 1361+78 Valve Positive Closure Vault1822 American River South Levee AR04 1362+00 Pump Station Intake City of Sacramento1804 American River South Levee AR04 1362+17 Pump Station Intake City of Sacramento1846 American River South Levee AR04 1362+37 Other Filtration Plant City of Sacramento2286 American River South Levee AR04 1362+43 Pole Light4348 American River South Levee AR04 1362+47 Other2265 American River South Levee AR04 1362+91 Valve Manhole - Drainage City of Sacramento3124 American River South Levee AR04 1363+23 Valve Manhole - Positive Closure Vault City of Sacramento3511 American River South Levee AR04 1363+28 Bridge3125 American River South Levee AR04 1363+29 Valve Manhole - Positive Closure Vault City of Sacramento3126 American River South Levee AR04 1363+35 Valve Manhole - Positive Closure Vault City of Sacramento3127 American River South Levee AR04 1363+39 Valve Manhole - Positive Closure Vault City of Sacramento2308 American River South Levee AR04 1363+45 Pump Station Intake City of Sacramento2287 American River South Levee AR04 1363+64 Valve Vault - Communication City of Sacramento2288 American River South Levee AR04 1363+99 Valve Water City of Sacramento2289 American River South Levee AR04 1364+04 Other Vertical Steel Container2290 American River South Levee AR04 1364+13 Pole Security camera4268 American River South Levee AR04 1364+15 Other2291 American River South Levee AR04 1364+42 Pole Light2293 American River South Levee AR04 1365+03 Valve Water City of Sacramento2294 American River South Levee AR04 1365+74 Pole4265 American River South Levee AR04 1366+18 Pole Light2295 American River South Levee AR04 1366+39 Pole Light4266 American River South Levee AR04 1366+39 Gate2303 American River South Levee AR04 1366+47 Other Electrical Equipment

Page 13 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4264 American River South Levee AR04 1366+56 Pole Light4262 American River South Levee AR04 1366+87 Landscaping Tree2302 American River South Levee AR04 1367+13 Other Fire Hydrant2301 American River South Levee AR04 1367+14 Pole Light2300 American River South Levee AR04 1367+50 Pole Light2299 American River South Levee AR04 1367+92 Pole Light2296 American River South Levee AR04 1368+13 Pole Light2298 American River South Levee AR04 1368+25 Pole Light2297 American River South Levee AR04 1368+39 Structure4261 American River South Levee AR04 1369+11 Pole4260 American River South Levee AR04 1369+39 Gate2266 American River South Levee AR04 1369+65 Stairway Wood Private2267 American River South Levee AR04 1375+66 Valve Broken Richard W. Evans2268 American River South Levee AR04 1375+81 Stairway Concrete Private2269 American River South Levee AR04 1375+82 Stairway Concrete Private4259 American River South Levee AR04 1381+57 Landscaping Tree4256 American River South Levee AR04 1385+61 Other4258 American River South Levee AR04 1385+64 Gate2270 American River South Levee AR04 1385+73 Other Electrical Equipment2275 American River South Levee AR04 1386+00 Valve Siphon Breaker Vault City of Sacramento2278 American River South Levee AR04 1386+29 Bridge Road1837 American River South Levee AR04 1386+87 Pipe Sump Station City of Sacramento1889 American River South Levee AR04 1386+91 Pump Station City of Sacramento1861 American River South Levee AR04 1387+25 Pole Electric SMUD4257 American River South Levee AR04 1387+25 Other4255 American River South Levee AR04 1387+37 Gate2274 American River South Levee AR04 1388+07 Other Utility Tower4254 American River South Levee AR04 1388+17 Other Overhead Utility2273 American River South Levee AR04 1388+71 Other Utility Tower2272 American River South Levee AR04 1389+23 Other Utility Tower4253 American River South Levee AR04 1389+46 Other Overhead Utility2271 American River South Levee AR04 1390+10 Other Utility Tower4251 American River South Levee AR04 1390+18 Gate1888 American River South Levee AR04 1390+20 Other Concrete Path City of Sacramento4252 American River South Levee AR04 1390+42 Other Overhead Utility1838 American River South Levee AR04 1390+85 Other Access Ramp Sacramento County4250 American River South Levee AR04 1391+68 Gate4249 American River South Levee AR04 1391+72 Gate

Page 14 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2065 American River South Levee AR04 1395+06 Other Electrical box1884 American River South Levee AR04 1395+92 Other Parking Lot Sacramento County2066 American River South Levee AR04 1396+32 Structure Restroom2064 American River South Levee AR04 1398+00 Stairway Concrete Private2063 American River South Levee AR04 1400+89 Other Electrical Equipment2062 American River South Levee AR04 1406+32 Stairway Concrete Private2061 American River South Levee AR04 1407+70 Other Electrical Equipment3219 American River South Levee AR04 1407+77 Other Electrical Vault4248 American River South Levee AR04 1409+89 Landscaping Tree2060 American River South Levee AR04 1409+98 Other Electrical Equipment2059 American River South Levee AR04 1411+64 Stairway Wood Private2058 American River South Levee AR04 1414+37 Stairway Wood Private2057 American River South Levee AR04 1415+29 Stairway Concrete block Private2056 American River South Levee AR04 1417+41 Stairway Concrete Private4247 American River South Levee AR04 1418+67 Stairway2055 American River South Levee AR04 1420+91 Stairway Wood Private2053 American River South Levee AR04 1423+67 Stairway Concrete block Private2052 American River South Levee AR04 1424+51 Stairway Concrete Private2051 American River South Levee AR04 1426+61 Stairway Concrete Private2050 American River South Levee AR04 1427+20 Stairway Concrete Private2049 American River South Levee AR04 1431+80 Stairway Concrete Private2048 American River South Levee AR04 1432+64 Stairway Concrete block Private2047 American River South Levee AR04 1434+20 Stairway Concrete Private1862 American River South Levee AR04 1439+32 Pump Station PS 92 City of Sacramento/County of Sacramento2045 American River South Levee AR04 1439+40 Valve Siphon Breaker Vault City of Sacramento4244 American River South Levee AR04 1439+60 Other Utility4245 American River South Levee AR04 1439+81 Other Overhead Utility4243 American River South Levee AR04 1439+99 Other Utility Tower4242 American River South Levee AR04 1440+67 Gate4241 American River South Levee AR04 1441+06 Other Overhead Utility4240 American River South Levee AR04 1441+19 Other Utility Tower2044 American River South Levee AR04 1442+13 Other Utility4238 American River South Levee AR04 1443+92 Landscaping Tree4239 American River South Levee AR04 1445+72 Landscaping Tree3804 American River South Levee AR04 1446+10 Irrigation2043 American River South Levee AR04 1446+40 Stairway Stone Private2042 American River South Levee AR04 1447+16 Stairway Wood Private2041 American River South Levee AR04 1448+18 Stairway Stone Private

Page 15 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2040 American River South Levee AR04 1449+48 Stairway Wood Private3412 American River South Levee AR04 1449+61 Landscaping2039 American River South Levee AR04 1450+22 Stairway Wood Private3411 American River South Levee AR04 1451+66 Landscaping planter box2038 American River South Levee AR04 1451+75 Stairway Concrete Private3410 American River South Levee AR04 1455+88 Structure Shed1831 American River South Levee AR04 1459+37 Other Boat Ramp Sacramento County Regional Parks4235 American River South Levee AR04 1459+44 Gate1817 American River South Levee AR04 1461+88 Fence Glennbrook - West Townhouses/Fence Pros2037 American River South Levee AR04 1463+31 Pole Light3135 American River South Levee AR04 1464+16 Other Electrical Equipment4236 American River South Levee AR04 1464+24 Landscaping2036 American River South Levee AR04 1464+35 Other Fire Hydrant3134 American River South Levee AR04 1464+38 Other Electrical Equipment2031 American River South Levee AR04 1465+04 Other Water Fountain2030 American River South Levee AR04 1465+31 Structure Sump?4234 American River South Levee AR04 1468+72 Gate4233 American River South Levee AR04 1468+81 Gate4232 American River South Levee AR04 1469+44 Landscaping Tree4231 American River South Levee AR04 1471+35 Landscaping2029 American River South Levee AR04 1477+39 Stairway Wood Private4229 American River South Levee AR04 1480+31 Gate4230 American River South Levee AR04 1486+81 Gate4228 American River South Levee AR04 1487+02 Landscaping Tree2028 American River South Levee AR04 1487+14 Stairway Concrete Private2027 American River South Levee AR04 1493+84 Other Pipe/Pump American Water4516 American River South Levee AR04 1496+40 Control Structure Outfall Sacramento County3138 American River South Levee AR04 1496+45 Valve Siphon Breaker Vault Sacramento County1826 American River South Levee AR04 1496+78 Pump Station Drainage Sacramento County1876 American River South Levee AR04 1496+90 Pump Station Drainage Sacramento County2024 American River South Levee AR04 1498+40 Stairway Concrete Private2023 American River South Levee AR04 1501+15 Stairway Concrete block Private2022 American River South Levee AR04 1503+74 Stairway Wood Private4227 American River South Levee AR04 1503+92 Landscaping Tree2021 American River South Levee AR04 1505+38 Stairway Wood Private3409 American River South Levee AR04 1505+55 Structure Shed3408 American River South Levee AR04 1507+13 Landscaping2020 American River South Levee AR04 1507+32 Other Cable box

Page 16 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3407 American River South Levee AR04 1508+27 Landscaping2019 American River South Levee AR04 1508+48 Stairway Wood Private4226 American River South Levee AR04 1508+57 Other Overhead Utility4225 American River South Levee AR04 1509+19 Landscaping Tree2018 American River South Levee AR04 1509+26 Pole Utility1811 American River South Levee AR04 1509+66 Fence James B. Pierce2017 American River South Levee AR04 1510+57 Stairway Wood Private2016 American River South Levee AR04 1511+22 Stairway Wood Private2015 American River South Levee AR04 1513+01 Pole Utility2014 American River South Levee AR04 1514+45 Stairway Wood Private4224 American River South Levee AR04 1515+06 Landscaping Tree2026 American River South Levee AR04 1515+26 Pole Pipe Post Landowner?2013 American River South Levee AR04 1515+91 Stairway Wood Private2012 American River South Levee AR04 1516+41 Stairway Wood Private2011 American River South Levee AR04 1517+02 Stairway Wood Private4223 American River South Levee AR04 1518+05 Landscaping Tree4222 American River South Levee AR04 1518+82 Landscaping Tree2010 American River South Levee AR04 1521+02 Stairway Wood Private4221 American River South Levee AR04 1521+51 Landscaping Tree2009 American River South Levee AR04 1522+31 Other Pump2008 American River South Levee AR04 1522+54 Pole Utility3406 American River South Levee AR04 1523+74 Pole2007 American River South Levee AR04 1524+98 Pole Utility3405 American River South Levee AR04 1526+61 Landscaping3404 American River South Levee AR04 1527+29 Landscaping2006 American River South Levee AR04 1529+01 Stairway Concrete Private2005 American River South Levee AR04 1529+73 Stairway Concrete Private2004 American River South Levee AR04 1530+29 Stairway Concrete Private2003 American River South Levee AR04 1531+57 Stairway Concrete Private2002 American River South Levee AR04 1539+72 Stairway Concrete Private2001 American River South Levee AR04 1550+90 Pole Utility1848 American River South Levee AR04 1551+50 Bridge Pedestrian Sacramento County4220 American River South Levee AR04 1553+80 Gate1870 American River South Levee AR04 1553+84 Fence Sacramento County, Dept of PW WQ3403 American River South Levee AR04 1562+96 Bridge4216 American River South Levee AR04 1590+48 Gate4218 American River South Levee AR04 1594+16 Pole Utility4219 American River South Levee AR04 1594+16 Other Vault

Page 17 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3856 American River South Levee AR04 1594+27 Pump Station Sacramento County4215 American River South Levee AR04 1626+18 Gate4214 American River South Levee AR04 1626+68 Gate4213 American River South Levee AR04 1629+00 Pump Station4211 American River South Levee AR04 1630+88 Landscaping Tree4212 American River South Levee AR04 1631+34 Pole Wood Post1784 American River South Levee AR04 999+86 Cutoff Wall1787 American River South Levee AR04 999+86 Landscaping Trees Sac Housing and Redevelopment Agency1792 American River South Levee AR04 999+86 Valve4368 Sacramento River East Levee AR05 1000+31 Landscaping Tree3149 Sacramento River East Levee AR05 1003+71 Pole Light3150 Sacramento River East Levee AR05 1004+22 Landscaping Irrigation3223 Sacramento River East Levee AR05 1004+23 Other Electrical box 27 Sacramento River East Levee AR05 1005+51 Landscaping Vegetation Sandman Motel, Inc. 3151 Sacramento River East Levee AR05 1006+92 Stairway Brick Private4369 Sacramento River East Levee AR05 1008+91 Other Shipping container3806 Sacramento River East Levee AR05 1009+90 Gate 34 Sacramento River East Levee AR05 1009+99 Pump Station City of Sacramento45 Sacramento River East Levee AR05 1010+04 Boating Facility Wharf 3224 Sacramento River East Levee AR05 1012+75 Well Monitoring Well4370 Sacramento River East Levee AR05 1013+60 Other Bike pole station 5 Sacramento River East Levee AR05 1015+13 Landscaping Vegetation City of Sacramento 3152 Sacramento River East Levee AR05 1016+01 Landscaping Irrigation 32 Sacramento River East Levee AR05 1016+66 Pump Station City of Sacramento 3448 Sacramento River East Levee AR05 1016+74 Bridge City of Sacramento3153 Sacramento River East Levee AR05 1017+63 Landscaping Irrigation3155 Sacramento River East Levee AR05 1019+07 Other Access Gate3154 Sacramento River East Levee AR05 1019+13 Valve Manhole - Electric SMUD3807 Sacramento River East Levee AR05 1019+18 Gate 13 Sacramento River East Levee AR05 1020+32 Pole SMUD
3156 Sacramento River East Levee AR05 1021+13 Other Call Box3227 Sacramento River East Levee AR05 1021+15 Other Concrete3228 Sacramento River East Levee SACD 1023+29 Floodwall 37 Sacramento River East Levee SACD 1023+40 Other flow meter USGS28 Sacramento River East Levee SACD 1024+48 Floodwall 216 Sacramento River East Levee SACD 1024+48 Floodwall
3229 Sacramento River East Levee SACD 1024+74 Floodwall 2 Sacramento River East Levee SACD 1027+16 Structure Building Niagara Chemical Division

Page 18 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4377 Sacramento River East Levee SACD 1028+97 Structure 12 Sacramento River East Levee SACD 1028+98 Pole Department of Water Resources 4374 Sacramento River East Levee SACD 1029+01 Other Gaging station.4371 Sacramento River East Levee SACD 1029+03 Pole Power pole3230 Sacramento River East Levee SACD 1029+06 Other river guage4376 Sacramento River East Levee SACD 1029+20 Stairway Concrete 3231 Sacramento River East Levee SACD 1030+03 Fence Metal3498 Sacramento River East Levee SACD 1030+46 Pole3233 Sacramento River East Levee SACD 1030+48 Structure Concrete3232 Sacramento River East Levee SACD 1030+53 Well Monitoring Well3242 Sacramento River East Levee SACD 1031+78 Valve Manhole3236 Sacramento River East Levee SACD 1032+00 Structure Concrete4378 Sacramento River East Levee SACD 1032+09 Other Monitoring well 43 Sacramento River East Levee SACD 1032+45 Structure Building CA Dept. of Water Resources 3235 Sacramento River East Levee SACD 1033+36 Well Monitoring Well3809 Sacramento River East Levee SACD 1034+91 Gate3808 Sacramento River East Levee SACD 1036+11 Gate3239 Sacramento River East Levee SACD 1036+77 Structure Concrete debris3240 Sacramento River East Levee SACD 1037+34 Fence Metal 31 Sacramento River East Levee SACD 1038+72 Structure temporary shed California Zonolite Co.30 Sacramento River East Levee SACD 1038+87 Pole SMUD 6 Sacramento River East Levee SACD 1039+13 Bridge Road
3241 Sacramento River East Levee SACD 1040+81 Fence Metal 234 Sacramento River East Levee SACD 1041+65 Other Floating ramp Sac Housing and Redevelopment Agency196 Sacramento River East Levee SACD 1054+53 Valve Drainage237 Sacramento River East Levee SACD 1054+53 Valve Drainage255 Sacramento River East Levee SACD 1054+53 Valve Drainage262 Sacramento River East Levee SACD 1054+53 Valve Drainage170 Sacramento River East Levee SACD 1055+07 Valve PG&E223 Sacramento River East Levee SACD 1055+07 Valve256 Sacramento River East Levee SACD 1055+07 Valve 4522 Sacramento River East Levee SACD 1055+40 Control Structure 15.5 ft to outer wall Inside river city cafe building 194 Sacramento River East Levee SACD 1056+14 Valve249 Sacramento River East Levee SACD 1056+14 Valve City of Sacramento274 Sacramento River East Levee SACD 1056+14 Valve Sewer210 Sacramento River East Levee SACD 1058+63 Structure Building Sac Housing and Redevelopment Agency231 Sacramento River East Levee SACD 1058+63 Structure Building Sac Housing and Redevelopment Agency222 Sacramento River East Levee SACD 1058+82 Boating Facility Wharf

Page 19 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
169 Sacramento River East Levee SACD 1058+83 Boating Facility Wharf271 Sacramento River East Levee SACD 1060+59 Bridge Road Caltrans165 Sacramento River East Levee SACD 1062+80 Structure Building Forrar Williams Architects188 Sacramento River East Levee SACD 1062+89 Other Deck City of Sacramento 4054 Sacramento River East Levee SACD 1063+00 Boating Facility Dock 21 Sacramento River East Levee SACD 1064+18 Floodwall
700 Sacramento River East Levee SACD 1065+74 Valve Manhole Private - State 4523 Sacramento River East Levee SACD 1066+50 Control Structure P st Pump station Cal trans4525 Sacramento River East Levee SACD 1069+00 Valve Manhole with stairs 248 Sacramento River East Levee SACD 1074+91 Floodwall
3810 Sacramento River East Levee SACD 1079+07 Gate Bollard4383 Sacramento River East Levee SACD 1079+39 Pole Light poles up to tower bridge 703 Sacramento River East Levee SACD 1079+49 Valve Water City of Sacramento Redevelopment Agency 4384 Sacramento River East Levee SACD 1079+51 Irrigation Sprinklers 3811 Sacramento River East Levee SACD 1081+88 Gate Bollard 699 Sacramento River East Levee SACD 1082+13 Valve Irrigation City of Sacramento Redevelopment Agency697 Sacramento River East Levee SACD 1082+16 Other Cleanout698 Sacramento River East Levee SACD 1082+30 Landscaping Park City of Sacramento 4382 Sacramento River East Levee SACD 1087+81 Pole With lock 272 Sacramento River East Levee SACD 1091+00 Boating Facility Wharf694 Sacramento River East Levee SACD 1091+25 Well Monitoring Well 4381 Sacramento River East Levee SACD 1093+92 Pole Grout wall 235 Sacramento River East Levee SACD 1096+11 Boating Facility Wharf PG&E259 Sacramento River East Levee SACD 1096+49 Stairway Concrete SRCSD199 Sacramento River East Levee SACD 1103+45 Bridge Road 4380 Sacramento River East Levee SACD 1106+92 Landscaping Tree 690 Sacramento River East Levee SACD 1107+21 Other grout filled bollard 3812 Sacramento River East Levee SACD 1111+02 Gate
186 Sacramento River East Levee SACD 1111+58 Well Extraction Conoco Phillips 3813 Sacramento River East Levee SACD 1112+61 Gate
689 Sacramento River East Levee SACD 1112+69 Pole Utility 4379 Sacramento River East Levee SACD 1112+88 Pole Light 688 Sacramento River East Levee SACD 1112+97 Pole Utility 4385 Sacramento River East Levee SACD 1113+74 Structure Cabinet with lock 686 Sacramento River East Levee SACD 1114+83 Well Monitoring Well176 Sacramento River East Levee SACD 1115+13 Boating Facility Wharf687 Sacramento River East Levee SACD 1115+13 Well Monitoring Well233 Sacramento River East Levee SACD 1118+11 Structure Deck / utilities City of Sacramento

Page 20 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
685 Sacramento River East Levee SACD 1120+04 Valve Water684 Sacramento River East Levee SACD 1122+61 Other Well City of Sacramento 3500 Sacramento River East Levee SACD 1123+14 Bridge pedestrian bridge 683 Sacramento River East Levee SACD 1123+96 Pole Utility190 Sacramento River East Levee SACD 1124+28 Structure Building City of Sacramento227 Sacramento River East Levee SACD 1125+01 Boating Facility Dock City of Sacramento 4386 Sacramento River East Levee SACD 1125+52 Landscaping Trees 692 Sacramento River East Levee SACD 1125+83 Other Access Gate209 Sacramento River East Levee SACD 1125+86 Landscaping Vegetation Sacramento Area Flood Control Agency 3814 Sacramento River East Levee SACD 1126+07 Gate
268 Sacramento River East Levee SACD 1126+87 Landscaping Irrigation City of Sacramento279 Sacramento River East Levee SACD 1126+93 Valve678 Sacramento River East Levee SACD 1132+27 Pole Light157 Sacramento River East Levee SACD 1134+62 Other Marina Expansion City of Sacramento 3501 Sacramento River East Levee SACD 1140+98 Structure 676 Sacramento River East Levee SACD 1141+17 Pump Station sump / building City of Sacramento 3815 Sacramento River East Levee SACD 1144+42 Gate Bollard 675 Sacramento River East Levee SACD 1144+72 Other Bollard218 Sacramento River East Levee SACD 1153+21 Valve Sewer162 Sacramento River East Levee SACD 1153+75 Valve Sewer240 Sacramento River East Levee SACD 1157+50 Valve185 Sacramento River East Levee SACD 1158+04 Valve265 Sacramento River East Levee SACD 1159+65 Valve674 Sacramento River East Levee SACD 1164+69 Well Water673 Sacramento River East Levee SACD 1164+72 Well Water181 Sacramento River East Levee SACD 1166+08 Fence fence and asphalt City of Sacramento 3502 Sacramento River East Levee SACD 1174+06 Structure Structure City of Sacramento 668 Sacramento River East Levee SACD 1174+39 Pole Call box City of Sacramento203 Sacramento River East Levee SACD 1184+90 Well Water CA Dept. of Water Resources667 Sacramento River East Levee SACD 1187+54 Pole Unknown666 Sacramento River East Levee SACD 1189+55 Valve Positive Closure Vault City of Sacramento664 Sacramento River East Levee SACD 1190+01 Well Water261 Sacramento River East Levee SACD 1190+02 Well Water City of Sacramento247 Sacramento River East Levee SACD 1198+26 Floodwall 3504 Sacramento River East Levee SACD 1199+56 Bridge Railroad 290 Sacramento River East Levee SACD 1204+40 Pole Light289 Sacramento River East Levee SACD 1213+56 Other Phone Box 2794 Sacramento River East Levee SACD 1215+22 Bridge Road

Page 21 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3816 Sacramento River East Levee SACD 1215+37 Gate2795 Sacramento River East Levee MA9 1216+56 Pole Light2793 Sacramento River East Levee MA9 1219+20 Pole Light3505 Sacramento River East Levee MA9 1224+49 Landscaping over grown shrubs2792 Sacramento River East Levee MA9 1226+52 Pole Light2791 Sacramento River East Levee MA9 1228+25 Pole Light2796 Sacramento River East Levee MA9 1235+62 Pole Light2790 Sacramento River East Levee MA9 1235+83 Other Bollard2797 Sacramento River East Levee MA9 1236+59 Pole Light2835 Sacramento River East Levee MA9 1236+84 Irrigation Sprinklers2834 Sacramento River East Levee MA9 1236+86 Valve Water2804 Sacramento River East Levee MA9 1237+75 Other beam2798 Sacramento River East Levee MA9 1237+76 Pole Light2800 Sacramento River East Levee MA9 1238+53 Other Fire Hydrant2801 Sacramento River East Levee MA9 1239+04 Pole Light2802 Sacramento River East Levee MA9 1239+27 Other Bollard2807 Sacramento River East Levee MA9 1239+48 Other Electrical equipment2805 Sacramento River East Levee MA9 1239+73 Other Bollard2806 Sacramento River East Levee MA9 1239+80 Pole Light3710 Sacramento River East Levee MA9 1240+27 Landscaping2808 Sacramento River East Levee MA9 1240+90 Pole Light2809 Sacramento River East Levee MA9 1241+52 Other Fire Hydrant2810 Sacramento River East Levee MA9 1241+97 Pole Light2811 Sacramento River East Levee MA9 1242+58 Pole Light2814 Sacramento River East Levee MA9 1243+05 Structure Building2812 Sacramento River East Levee MA9 1243+30 Pole Light2813 Sacramento River East Levee MA9 1243+86 Pole Light2441 Sacramento River East Levee MA9 1244+27 Structure Hotel / Marina Captains Table Hotel LLC, / Robert Leach4388 Sacramento River East Levee MA9 1244+44 Pole Bollard2818 Sacramento River East Levee MA9 1244+46 Pole Light2816 Sacramento River East Levee MA9 1244+47 Other Bollard2817 Sacramento River East Levee MA9 1244+51 Stairway Concrete Private2820 Sacramento River East Levee MA9 1245+91 Stairway Concrete Private2821 Sacramento River East Levee MA9 1246+27 Other Fire Hydrant2822 Sacramento River East Levee MA9 1246+28 Valve Manhole2825 Sacramento River East Levee MA9 1246+93 Stairway Concrete Private2824 Sacramento River East Levee MA9 1246+96 Other Walkway4053 Sacramento River East Levee MA9 1247+01 Boating Facility Dock

Page 22 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3712 Sacramento River East Levee MA9 1247+17 Irrigation Drain3711 Sacramento River East Levee MA9 1248+41 Irrigation Box2833 Sacramento River East Levee MA9 1248+43 Irrigation Sprinkler System Controls2827 Sacramento River East Levee MA9 1248+51 Other Fire Hydrant2828 Sacramento River East Levee MA9 1248+55 Valve Water2832 Sacramento River East Levee MA9 1249+05 Structure pool equipment 3715 Sacramento River East Levee MA9 1249+80 Landscaping2829 Sacramento River East Levee MA9 1250+09 Pole Utility2864 Sacramento River East Levee MA9 1250+12 Structure Building Private2866 Sacramento River East Levee MA9 1250+81 Structure Building Private2865 Sacramento River East Levee MA9 1251+04 Structure Building Private2868 Sacramento River East Levee MA9 1251+61 Structure Shed Private2867 Sacramento River East Levee MA9 1251+92 Structure Building Private3716 Sacramento River East Levee MA9 1252+45 Landscaping2447 Sacramento River East Levee MA9 1252+64 Pole Sign Randy Borene2869 Sacramento River East Levee MA9 1252+66 Pole Utility2875 Sacramento River East Levee MA9 1252+99 Pole2463 Sacramento River East Levee MA9 1255+87 Pump Station Drainage City of Sacramento2870 Sacramento River East Levee MA9 1256+11 Pole Light2871 Sacramento River East Levee MA9 1256+12 Structure Shed3841 Sacramento River East Levee MA9 1256+35 Gate Needs Data3717 Sacramento River East Levee MA9 1256+48 Landscaping2872 Sacramento River East Levee MA9 1256+52 Access Gate Gate2873 Sacramento River East Levee MA9 1256+73 Stairway Wood Private2959 Sacramento River East Levee MA9 1256+74 Valve Water2442 Sacramento River East Levee MA9 1257+95 Boating Facility Dock Tim O'Brien3718 Sacramento River East Levee MA9 1258+07 Landscaping2955 Sacramento River East Levee MA9 1258+25 Well Observation2956 Sacramento River East Levee MA9 1258+25 Well Observation3719 Sacramento River East Levee MA9 1259+30 Landscaping2953 Sacramento River East Levee MA9 1259+54 Irrigation Sprinkler Charles E. Zell2951 Sacramento River East Levee MA9 1259+63 Boating Facility Dock3720 Sacramento River East Levee MA9 1260+15 Landscaping3584 Sacramento River East Levee MA9 1260+47 Irrigation Sprinkler2946 Sacramento River East Levee MA9 1261+01 Irrigation Sprinkler3734 Sacramento River East Levee MA9 1261+04 Landscaping2943 Sacramento River East Levee MA9 1261+16 Irrigation Sprinkler2945 Sacramento River East Levee MA9 1261+16 Irrigation Sprinkler Ernest L. Long

Page 23 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3372 Sacramento River East Levee MA9 1261+16 Irrigation Sprinkler3585 Sacramento River East Levee MA9 1261+60 Irrigation Sprinkler2942 Sacramento River East Levee MA9 1261+64 Boating Facility Dock Private2458 Sacramento River East Levee MA9 1261+76 Stairway Harry F. Stathos2449 Sacramento River East Levee MA9 1261+79 Boating Facility Dock Frank Stathos3721 Sacramento River East Levee MA9 1261+80 Landscaping3735 Sacramento River East Levee MA9 1261+80 Landscaping2939 Sacramento River East Levee MA9 1262+63 Pole Utility2934 Sacramento River East Levee MA9 1262+98 Irrigation Sprinkler Landowner?3733 Sacramento River East Levee MA9 1263+03 Landscaping2456 Sacramento River East Levee MA9 1263+34 Stairway Wood William A. Peron2932 Sacramento River East Levee MA9 1263+51 Stairway Wood Private2933 Sacramento River East Levee MA9 1263+62 Stairway Wood Janey John2935 Sacramento River East Levee MA9 1263+85 Boating Facility Dock2960 Sacramento River East Levee MA9 1263+91 Structure Building2444 Sacramento River East Levee MA9 1264+05 Landscaping Trees Mrs. Mary Luoinski3586 Sacramento River East Levee MA9 1264+30 Irrigation Sprinkler2930 Sacramento River East Levee MA9 1264+59 Irrigation Sprinkler Landowner?2931 Sacramento River East Levee MA9 1264+68 Irrigation Sprinkler Landowner?2452 Sacramento River East Levee MA9 1264+93 Boating Facility Dock William A. Peron2926 Sacramento River East Levee MA9 1265+10 Irrigation Sprinkler Landowner?3732 Sacramento River East Levee MA9 1265+23 Landscaping2925 Sacramento River East Levee MA9 1265+75 Stairway Wood Private2923 Sacramento River East Levee MA9 1265+93 Stairway Stone Private2924 Sacramento River East Levee MA9 1265+97 Boating Facility Dock2453 Sacramento River East Levee MA9 1266+13 Fence Gazebo Timothy J. & Catherine P. Taylor2919 Sacramento River East Levee MA9 1266+49 Irrigation Sprinkler2918 Sacramento River East Levee MA9 1266+50 Irrigation Sprinkler Landowner?2917 Sacramento River East Levee MA9 1266+53 Irrigation Sprinkler Landowner?2916 Sacramento River East Levee MA9 1266+85 Irrigation Sprinkler Landowner2914 Sacramento River East Levee MA9 1266+91 Stairway Wood Private2915 Sacramento River East Levee MA9 1266+96 Stairway Wood Private3731 Sacramento River East Levee MA9 1267+43 Landscaping2913 Sacramento River East Levee MA9 1267+66 Irrigation Sprinkler Landowner3587 Sacramento River East Levee MA9 1267+73 Irrigation Sprinkler3523 Sacramento River East Levee MA9 1267+98 Irrigation Sprinkler Landowner?2909 Sacramento River East Levee MA9 1268+05 Stairway Wood Private2908 Sacramento River East Levee MA9 1268+15 Stairway Concrete Private

Page 24 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2911 Sacramento River East Levee MA9 1268+16 Irrigation Sprinkler Landowner?3722 Sacramento River East Levee MA9 1268+23 Landscaping2907 Sacramento River East Levee MA9 1268+40 Irrigation Sprinkler Landowner2906 Sacramento River East Levee MA9 1268+43 Irrigation Sprinkler Landowner2905 Sacramento River East Levee MA9 1268+69 Irrigation Sprinkler Landowner2904 Sacramento River East Levee MA9 1268+78 Irrigation Sprinkler Landowner2901 Sacramento River East Levee MA9 1269+04 Stairway Concrete Private2900 Sacramento River East Levee MA9 1269+13 Irrigation Sprinkler Landowner?2898 Sacramento River East Levee MA9 1269+14 Irrigation Sprinkler Landowner2899 Sacramento River East Levee MA9 1269+19 Irrigation Sprinkler Landowner3723 Sacramento River East Levee MA9 1269+28 Landscaping3496 Sacramento River East Levee MA9 1269+53 Structure2897 Sacramento River East Levee MA9 1269+75 Stairway Path Private2895 Sacramento River East Levee MA9 1269+93 Irrigation Sprinkler Landowner?2891 Sacramento River East Levee MA9 1270+00 Irrigation Sprinkler Landowner?3724 Sacramento River East Levee MA9 1270+09 Landscaping2893 Sacramento River East Levee MA9 1270+71 Boating Facility Dock2894 Sacramento River East Levee MA9 1270+76 Boating Facility Dock3730 Sacramento River East Levee MA9 1270+85 Landscaping3494 Sacramento River East Levee MA9 1270+93 Irrigation Faucet2889 Sacramento River East Levee MA9 1271+06 Stairway Concrete Private2890 Sacramento River East Levee MA9 1271+10 Stairway Wood Private3725 Sacramento River East Levee MA9 1271+25 Landscaping2885 Sacramento River East Levee MA9 1271+71 Stairway Concrete Landowner2886 Sacramento River East Levee MA9 1271+71 Stairway Concrete Private2887 Sacramento River East Levee MA9 1271+78 Other bench with concrete slabe2884 Sacramento River East Levee MA9 1272+51 Pole Utility2883 Sacramento River East Levee MA9 1273+19 Stairway Concrete Owen R. Baser2445 Sacramento River East Levee MA9 1273+40 Landscaping Trees Owen R. Baser3817 Sacramento River East Levee MA9 1273+56 Gate3726 Sacramento River East Levee MA9 1274+27 Landscaping2882 Sacramento River East Levee MA9 1274+85 Pole Utility2881 Sacramento River East Levee MA9 1275+39 Pole Utility3727 Sacramento River East Levee MA9 1275+47 Landscaping2879 Sacramento River East Levee MA9 1275+69 Boating Facility Dock2466 Sacramento River East Levee MA9 1275+77 Stairway Concrete Frank Stathos2880 Sacramento River East Levee MA9 1275+98 Structure Concrete block3728 Sacramento River East Levee MA9 1277+07 Landscaping

Page 25 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2877 Sacramento River East Levee MA9 1277+88 Well Observation3818 Sacramento River East Levee MA9 1277+88 Gate2878 Sacramento River East Levee MA9 1277+91 Well Observation2619 Sacramento River East Levee MA9 1277+95 Access Gate Gate3729 Sacramento River East Levee MA9 1278+36 Landscaping3750 Sacramento River East Levee MA9 1279+43 Landscaping3749 Sacramento River East Levee MA9 1280+67 Landscaping3748 Sacramento River East Levee MA9 1282+19 Landscaping2862 Sacramento River East Levee MA9 1283+42 Pole Utility3492 Sacramento River East Levee MA9 1283+90 Irrigation Sprinkler3747 Sacramento River East Levee MA9 1284+78 Landscaping2861 Sacramento River East Levee MA9 1285+12 Stairway Stone Private3746 Sacramento River East Levee MA9 1285+63 Landscaping3745 Sacramento River East Levee MA9 1286+33 Landscaping3491 Sacramento River East Levee MA9 1286+39 Stairway4391 Sacramento River East Levee MA9 1286+60 Landscaping Tree3744 Sacramento River East Levee MA9 1287+29 Landscaping3743 Sacramento River East Levee MA9 1288+23 Landscaping2860 Sacramento River East Levee MA9 1288+51 Stairway Brick Private2859 Sacramento River East Levee MA9 1289+20 Pole Utility4400 Sacramento River East Levee MA9 1290+14 Other Steps in levee4401 Sacramento River East Levee MA9 1290+24 Landscaping Trees3819 Sacramento River East Levee MA9 1291+22 Gate4399 Sacramento River East Levee MA9 1292+57 Landscaping Tree3751 Sacramento River East Levee MA9 1293+35 Landscaping4392 Sacramento River East Levee MA9 1294+09 Landscaping Tree4398 Sacramento River East Levee MA9 1294+25 Landscaping Tree2840 Sacramento River East Levee MA9 1294+43 Pole Utility3497 Sacramento River East Levee MA9 1294+87 Stairway2842 Sacramento River East Levee MA9 1296+55 Pole Utility2843 Sacramento River East Levee MA9 1297+31 Stairway Wood Private3599 Sacramento River East Levee MA9 1297+92 Pool4393 Sacramento River East Levee MA9 1298+51 Landscaping Trees2844 Sacramento River East Levee MA9 1298+58 Pole Utility3752 Sacramento River East Levee MA9 1299+15 Landscaping4394 Sacramento River East Levee MA9 1299+82 Landscaping Trees2845 Sacramento River East Levee MA9 1300+52 Pole Utility4395 Sacramento River East Levee MA9 1301+55 Landscaping Tree

Page 26 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2846 Sacramento River East Levee MA9 1302+57 Pole Utility2847 Sacramento River East Levee MA9 1302+65 Structure Shed4396 Sacramento River East Levee MA9 1302+92 Landscaping Tree2849 Sacramento River East Levee MA9 1304+38 Pole Utility3742 Sacramento River East Levee MA9 1305+91 Landscaping2850 Sacramento River East Levee MA9 1305+98 Pole Utility4397 Sacramento River East Levee MA9 1306+31 Landscaping Tree3741 Sacramento River East Levee MA9 1306+87 Landscaping2852 Sacramento River East Levee MA9 1309+48 Valve Control Box2853 Sacramento River East Levee MA9 1309+50 Valve Control Box2454 Sacramento River East Levee MA9 1310+22 Bridge Road3740 Sacramento River East Levee MA9 1310+60 Landscaping2451 Sacramento River East Levee MA9 1311+86 Boating Facility Dock Artesion Development2857 Sacramento River East Levee MA9 1313+63 Pole Utility3597 Sacramento River East Levee MA9 1314+16 Irrigation Sprinkler3820 Sacramento River East Levee MA9 1314+66 Gate2858 Sacramento River East Levee MA9 1315+09 Structure Building Landowner3739 Sacramento River East Levee MA9 1315+18 Landscaping2618 Sacramento River East Levee MA9 1315+95 Access Gate Gate2459 Sacramento River East Levee MA9 1315+96 Fence Across Levee Wayne Brown3821 Sacramento River East Levee MA9 1316+01 Gate3822 Sacramento River East Levee MA9 1318+59 Gate4403 Sacramento River East Levee MA9 1320+44 Pole Solar panel4404 Sacramento River East Levee MA9 1320+48 Other Elec box above ground4402 Sacramento River East Levee MA9 1320+69 Other Elec equipment 2784 Sacramento River East Levee MA9 1320+85 Other Electrical equipment SMUD?2785 Sacramento River East Levee MA9 1320+93 Pole Light4405 Sacramento River East Levee MA9 1320+94 Other Elec panel2786 Sacramento River East Levee MA9 1321+07 Other Electrical equipment SMUD?3738 Sacramento River East Levee MA9 1321+32 Landscaping2782 Sacramento River East Levee MA9 1322+47 Valve Vacuum Pump Station SMUD?2781 Sacramento River East Levee MA9 1322+54 Pole Light2780 Sacramento River East Levee MA9 1322+69 Other Electrical equipment SMUD?4004 Sacramento River East Levee MA9 1322+94 Pump Station SRCSD2778 Sacramento River East Levee MA9 1323+17 Pole Sign2777 Sacramento River East Levee MA9 1324+20 Pole Sign2776 Sacramento River East Levee MA9 1325+21 Pole Sign2775 Sacramento River East Levee MA9 1326+08 Pole Sign

Page 27 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2769 Sacramento River East Levee MA9 1327+74 Pole Sign2768 Sacramento River East Levee MA9 1328+25 Other Electrical equipment SRCSD2443 Sacramento River East Levee MA9 1328+37 Pump Station Vacuum SRCSD2767 Sacramento River East Levee MA9 1328+78 Pole Sign2766 Sacramento River East Levee MA9 1329+71 Pole Sign2765 Sacramento River East Levee MA9 1330+71 Pole Sign2764 Sacramento River East Levee MA9 1333+56 Pole Sign2763 Sacramento River East Levee MA9 1335+55 Pole Sign2761 Sacramento River East Levee MA9 1335+96 Well Monitoring Well2762 Sacramento River East Levee MA9 1335+98 Well Monitoring Well2760 Sacramento River East Levee MA9 1336+52 Pole Sign2759 Sacramento River East Levee MA9 1337+53 Pole Sign2758 Sacramento River East Levee MA9 1338+50 Pole Sign3823 Sacramento River East Levee MA9 1341+74 Gate4407 Sacramento River East Levee MA9 1344+02 Landscaping Trees4406 Sacramento River East Levee MA9 1345+14 Pole2499 Sacramento River East Levee MA9 1346+14 Stairway Wood Mitch Wright / Kenneth Heller3824 Sacramento River East Levee MA9 1347+01 Gate2756 Sacramento River East Levee MA9 1347+04 Other Access Gate2757 Sacramento River East Levee MA9 1347+06 Stairway Concrete Private4408 Sacramento River East Levee MA9 1351+96 Landscaping Trees3588 Sacramento River East Levee MA9 1354+58 Well Monitoring Well3589 Sacramento River East Levee MA9 1354+65 Well Monitoring Well3590 Sacramento River East Levee MA9 1354+68 Well Monitoring Well3736 Sacramento River East Levee MA9 1354+85 Landscaping garden2750 Sacramento River East Levee MA9 1360+30 Pump Station Sump City of Sacramento2745 Sacramento River East Levee MA9 1360+35 Stairway Concrete City of Sacramento2747 Sacramento River East Levee MA9 1360+36 Pole Light City of Sacramento2746 Sacramento River East Levee MA9 1360+50 Structure Building City of Sacramento3825 Sacramento River East Levee MA9 1360+65 Gate2617 Sacramento River East Levee MA9 1360+66 Access Gate Gate2744 Sacramento River East Levee MA9 1360+67 Stairway Brick Private3007 Sacramento River East Levee MA9 1361+93 Stairway Concrete block Private3623 Sacramento River East Levee MA9 1362+14 Structure3008 Sacramento River East Levee MA9 1362+67 Structure Shed3471 Sacramento River East Levee MA9 1364+32 Landscaping3781 Sacramento River East Levee MA9 1365+48 Landscaping3621 Sacramento River East Levee MA9 1369+30 Pool

Page 28 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2994 Sacramento River East Levee MA9 1370+19 Boating Facility Dock3620 Sacramento River East Levee MA9 1371+93 Pool3472 Sacramento River East Levee MA9 1373+45 Landscaping2472 Sacramento River East Levee MA9 1373+67 Boating Facility Dock Charles and Marily Reed2988 Sacramento River East Levee MA9 1373+68 Boating Facility Dock Charles and Marily Reed3618 Sacramento River East Levee MA9 1374+18 Pool2985 Sacramento River East Levee MA9 1374+62 Stairway Wood Private2982 Sacramento River East Levee MA9 1375+33 Boating Facility Dock2514 Sacramento River East Levee MA9 1378+45 Other Retaining Wall Richard and Lili Butterfield3617 Sacramento River East Levee MA9 1380+04 Pool3616 Sacramento River East Levee MA9 1380+11 Irrigation2975 Sacramento River East Levee MA9 1380+39 Access Gate Gate Private3826 Sacramento River East Levee MA9 1380+40 Gate3615 Sacramento River East Levee MA9 1380+55 Pool3778 Sacramento River East Levee MA9 1380+66 Landscaping3614 Sacramento River East Levee MA9 1381+40 Pool3474 Sacramento River East Levee MA9 1382+30 Landscaping2972 Sacramento River East Levee MA9 1382+97 Boating Facility Dock3777 Sacramento River East Levee MA9 1383+19 Landscaping2491 Sacramento River East Levee MA9 1386+54 Other Retaining Wall Stephen D. Munro2966 Sacramento River East Levee MA9 1386+63 Stairway Abandoned Private3476 Sacramento River East Levee MA9 1387+11 Landscaping3612 Sacramento River East Levee MA9 1387+18 Pool3611 Sacramento River East Levee MA9 1387+95 Irrigation2961 Sacramento River East Levee MA9 1388+45 Stairway Metal Private3827 Sacramento River East Levee MA9 1388+99 Gate2616 Sacramento River East Levee MA9 1389+02 Access Gate Gate Private3776 Sacramento River East Levee MA9 1389+24 Landscaping4409 Sacramento River East Levee MA9 1389+78 Landscaping Trees3828 Sacramento River East Levee MA9 1393+26 Gate Bollard2742 Sacramento River East Levee MA9 1394+90 Stairway Wood Private2740 Sacramento River East Levee MA9 1398+86 Pole Light3829 Sacramento River East Levee MA9 1408+15 Gate2615 Sacramento River East Levee MA9 1408+21 Access Gate Gate Private3609 Sacramento River East Levee MA9 1409+04 Well Monitoring Well3610 Sacramento River East Levee MA9 1409+12 Pool3051 Sacramento River East Levee MA9 1409+38 Stairway Concrete Craig Fulster3049 Sacramento River East Levee MA9 1409+42 Stairway Concrete Craig Fulster

Page 29 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4410 Sacramento River East Levee MA9 1409+98 Other Rodent hole in levee3048 Sacramento River East Levee MA9 1410+16 Stairway Concrete Private3775 Sacramento River East Levee MA9 1410+30 Landscaping3047 Sacramento River East Levee MA9 1410+99 Stairway Concrete Private3608 Sacramento River East Levee MA9 1412+08 Well Monitoring Well3046 Sacramento River East Levee MA9 1412+27 Other Electrical equipment3045 Sacramento River East Levee MA9 1412+47 Stairway Wood Donald Ceccato2505 Sacramento River East Levee MA9 1412+51 Stairway Donald Ceccato3044 Sacramento River East Levee MA9 1413+77 Stairway Concrete Private2611 Sacramento River East Levee MA9 1413+78 Well Monitoring Well2478 Sacramento River East Levee MA9 1414+24 Boating Facility Dock Arthur Naldoza3043 Sacramento River East Levee MA9 1414+25 Stairway Wood Arthur Naldoza3607 Sacramento River East Levee MA9 1414+48 Pool3774 Sacramento River East Levee MA9 1414+50 Landscaping3477 Sacramento River East Levee MA9 1414+73 Structure3042 Sacramento River East Levee MA9 1414+84 Stairway Wood Private3041 Sacramento River East Levee MA9 1415+60 Stairway Stone Private2495 Sacramento River East Levee MA9 1415+61 Stairway Steps M. L. Woy, Jr.3772 Sacramento River East Levee MA9 1416+22 Landscaping3606 Sacramento River East Levee MA9 1416+51 Well Monitoring Well3040 Sacramento River East Levee MA9 1416+57 Stairway Concrete Private3039 Sacramento River East Levee MA9 1417+21 Stairway Concrete block Private3771 Sacramento River East Levee MA9 1417+35 Landscaping3038 Sacramento River East Levee MA9 1418+30 Stairway Private4411 Sacramento River East Levee MA9 1419+00 Landscaping Tree3037 Sacramento River East Levee MA9 1419+25 Stairway Wood Private3036 Sacramento River East Levee MA9 1419+66 Stairway Concrete Private3770 Sacramento River East Levee MA9 1419+74 Landscaping2475 Sacramento River East Levee MA9 1420+38 Landscaping Trees Joyce and Elzia Williams4412 Sacramento River East Levee MA9 1420+43 Stairway Stone2513 Sacramento River East Levee MA9 1422+26 Other Retaining Wall Lionel and Eleanor Holmes4413 Sacramento River East Levee MA9 1422+69 Stairway Wood3035 Sacramento River East Levee MA9 1422+70 Stairway Wood Private3031 Sacramento River East Levee MA9 1423+38 Stairway Wood Private3032 Sacramento River East Levee MA9 1423+39 Stairway Stone Private3030 Sacramento River East Levee MA9 1423+88 Well Monitoring Well3478 Sacramento River East Levee MA9 1423+89 Landscaping3029 Sacramento River East Levee MA9 1423+94 Well Monitoring Well

Page 30 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3769 Sacramento River East Levee MA9 1424+50 Landscaping3028 Sacramento River East Levee MA9 1424+54 Stairway Wood Private2482 Sacramento River East Levee MA9 1425+48 Stairway Concrete City of Sacramento2739 Sacramento River East Levee MA9 1425+70 Pump Station Sump 70 City of Sacramento4415 Sacramento River East Levee MA9 1425+71 Other Elec box3479 Sacramento River East Levee MA9 1426+17 Landscaping3480 Sacramento River East Levee MA9 1426+82 Landscaping bench3015 Sacramento River East Levee MA9 1429+15 Other Electrical equipment3016 Sacramento River East Levee MA9 1429+17 Boating Facility Dock4417 Sacramento River East Levee MA9 1429+25 Stairway Wood branches3013 Sacramento River East Levee MA9 1430+60 Stairway Concrete block Private4418 Sacramento River East Levee MA9 1431+01 Landscaping Garden2471 Sacramento River East Levee MA9 1433+42 Fence Across Levee Ellis and Frances Silva2614 Sacramento River East Levee MA9 1433+47 Access Gate Gate3830 Sacramento River East Levee MA9 1433+49 Gate3768 Sacramento River East Levee MA9 1436+48 Landscaping2735 Sacramento River East Levee MA9 1437+12 Boating Facility Dock Private3767 Sacramento River East Levee MA9 1437+38 Landscaping4419 Sacramento River East Levee MA9 1439+74 Other Survey monument 3483 Sacramento River East Levee MA9 1440+47 Landscaping3766 Sacramento River East Levee MA9 1441+65 Landscaping4420 Sacramento River East Levee MA9 1442+68 Landscaping Overgrown trees2733 Sacramento River East Levee MA9 1443+94 Stairway Concrete Private3765 Sacramento River East Levee MA9 1444+27 Landscaping2493 Sacramento River East Levee MA9 1447+04 Boating Facility Dock Jeff Ormand2729 Sacramento River East Levee MA9 1447+13 Boating Facility Dock Jeff Ormand3762 Sacramento River East Levee MA9 1448+44 Landscaping3602 Sacramento River East Levee MA9 1450+36 Pool3761 Sacramento River East Levee MA9 1451+38 Landscaping3759 Sacramento River East Levee MA9 1452+89 Landscaping3486 Sacramento River East Levee MA9 1454+39 Structure4421 Sacramento River East Levee MA9 1454+62 Landscaping Trees3487 Sacramento River East Levee MA9 1455+57 Stairway3831 Sacramento River East Levee MA9 1457+44 Gate2717 Sacramento River East Levee MA9 1459+96 Pole Utility2492 Sacramento River East Levee MA9 1460+06 Landscaping Trees Pamela B. Wittpen2718 Sacramento River East Levee MA9 1460+33 Pole Utility2714 Sacramento River East Levee MA9 1460+96 Boating Facility Dock

Page 31 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2715 Sacramento River East Levee MA9 1461+05 Boating Facility Dock2468 Sacramento River East Levee MA9 1461+16 Boating Facility Dock Pamela B. Wittpen2712 Sacramento River East Levee MA9 1462+01 Well Monitoring Well2713 Sacramento River East Levee MA9 1462+02 Well Monitoring Well2613 Sacramento River East Levee MA9 1463+65 Access Gate Gate MA93832 Sacramento River East Levee MA9 1463+65 Gate3758 Sacramento River East Levee MA9 1465+34 Landscaping4422 Sacramento River East Levee MA9 1468+58 Landscaping Trees3757 Sacramento River East Levee MA9 1474+42 Landscaping2693 Sacramento River East Levee MA9 1476+23 Pole Light3756 Sacramento River East Levee MA9 1477+99 Landscaping2697 Sacramento River East Levee MA9 1478+54 Structure Abandoned3755 Sacramento River East Levee MA9 1478+81 Landscaping2699 Sacramento River East Levee MA9 1479+33 Structure Building2702 Sacramento River East Levee MA9 1483+13 Structure Abandoned?3490 Sacramento River East Levee MA9 1484+15 Landscaping3754 Sacramento River East Levee MA9 1487+79 Landscaping4423 Sacramento River East Levee MA9 1488+33 Pole Bollard3600 Sacramento River East Levee MA9 1492+91 Structure2707 Sacramento River East Levee MA9 1495+99 Structure Shed4424 Sacramento River East Levee MA9 1496+61 Landscaping Trees3753 Sacramento River East Levee MA9 1499+15 Landscaping2500 Sacramento River East Levee MA9 1503+39 Fence Marin Oaks Homeowners Association3833 Sacramento River East Levee MA9 1503+42 Gate2612 Sacramento River East Levee MA9 1503+43 Fence Gate Private4425 Sacramento River East Levee MA9 1508+51 Stairway Cuts in levee4426 Sacramento River East Levee MA9 1514+51 Stairway Foot ramp4427 Sacramento River East Levee MA9 1518+57 Landscaping Tree3834 Sacramento River East Levee MA9 1518+94 Gate4428 Sacramento River East Levee MA9 1522+39 Stairway Foot traffic path4429 Sacramento River East Levee MA9 1523+32 Landscaping Trees4430 Sacramento River East Levee MA9 1527+80 Landscaping Trees3709 Sacramento River East Levee MA9 1531+19 Landscaping3835 Sacramento River East Levee MA9 1531+67 Gate2681 Sacramento River East Levee MA9 1532+49 Pump Station Sump 132 City of Sacramento2670 Sacramento River East Levee MA9 1533+59 Well Monitoring Well2669 Sacramento River East Levee MA9 1533+60 Well Monitoring Well4431 Sacramento River East Levee MA9 1534+74 Landscaping Trees

Page 32 of 38 ends

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4432 Sacramento River East Levee MA9 1540+30 Landscaping Trees4433 Sacramento River East Levee MA9 1547+26 Pole Levee marker4434 Sacramento River East Levee MA9 1549+48 Pole Bollard4435 Sacramento River East Levee MA9 1549+52 Pole Sign4436 Sacramento River East Levee MA9 1549+60 Pole Sign3836 Sacramento River East Levee MA9 1549+67 Gate4437 Sacramento River East Levee MA9 1549+86 Pole Street light2651 Sacramento River East Levee MA9 1550+56 Pole Light2653 Sacramento River East Levee MA9 1551+71 Pole Light2652 Sacramento River East Levee MA9 1552+25 Pole Light2510 Sacramento River East Levee MA9 1552+32 Other Boat Ramp City of Sacramento2654 Sacramento River East Levee MA9 1552+52 Pole Light2657 Sacramento River East Levee MA9 1552+88 Stairway Path City of Sacramento2656 Sacramento River East Levee MA9 1553+36 Stairway Path City of Sacramento2476 Sacramento River East Levee MA9 1553+51 Boating Facility Boat Launch2655 Sacramento River East Levee MA9 1553+64 Pole Light2658 Sacramento River East Levee MA9 1554+52 Pole Light3837 Sacramento River East Levee MA9 1554+68 Gate3838 Sacramento River East Levee MA9 1557+57 Gate4440 Sacramento River East Levee MA9 1568+96 Stairway Pedestrian ramp from home4441 Sacramento River East Levee MA9 1569+28 Stairway Pedestrian ramp4443 Sacramento River East Levee MA9 1572+89 Pole Sign4444 Sacramento River East Levee MA9 1573+87 Landscaping Tree3706 Sacramento River East Levee MA9 1575+76 Landscaping4445 Sacramento River East Levee MA9 1578+82 Landscaping Trees2660 Sacramento River East Levee MA9 1579+48 Pole Light4446 Sacramento River East Levee MA9 1580+40 Landscaping Tree4447 Sacramento River East Levee MA9 1582+42 Other Stump2520 Sacramento River East Levee MA9 1586+26 Other Access Ramps City of Sacramento2662 Sacramento River East Levee MA9 1587+08 Pole Light4448 Sacramento River East Levee MA9 1596+58 Landscaping Overgrown onto Landside toe of levee4449 Sacramento River East Levee MA9 1599+99 Stairway Foot steps embedded into slope3708 Sacramento River East Levee MA9 1601+60 Landscaping4450 Sacramento River East Levee MA9 1603+69 Landscaping Trees4451 Sacramento River East Levee MA9 1611+09 Landscaping Tree4452 Sacramento River East Levee MA9 1611+28 Stairway Stones in slope3842 Sacramento River East Levee MA9 1611+91 Landscaping Needs Data2504 Sacramento River East Levee MA9 1615+00 Landscaping Bench Waterside Pat Lydon

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4453 Sacramento River East Levee MA9 1615+53 Stairway Pedestrian ramp4454 Sacramento River East Levee MA9 1616+14 Landscaping Trees4455 Sacramento River East Levee MA9 1621+00 Landscaping Tree4457 Sacramento River East Levee MA9 1627+01 Stairway Pedestrian foot ramp4456 Sacramento River East Levee MA9 1627+75 Landscaping Tree3839 Sacramento River East Levee MA9 1633+67 Gate4458 Sacramento River East Levee MA9 1635+00 Landscaping Trees3703 Sacramento River East Levee MA9 1638+62 Landscaping4459 Sacramento River East Levee MA9 1639+99 Pole Sign2649 Sacramento River East Levee MA9 1642+11 Valve Water2650 Sacramento River East Levee MA9 1642+12 Valve Water4460 Sacramento River East Levee MA9 1644+52 Landscaping Tree4461 Sacramento River East Levee MA9 1647+17 Stairway Pedestrian path4462 Sacramento River East Levee MA9 1649+70 Landscaping Tree4463 Sacramento River East Levee MA9 1651+10 Landscaping Tree4464 Sacramento River East Levee MA9 1652+62 Landscaping Trees4465 Sacramento River East Levee MA9 1655+55 Landscaping Tree2635 Sacramento River East Levee MA9 1656+07 Pole Light4466 Sacramento River East Levee MA9 1656+11 Stairway Pedestrian path4467 Sacramento River East Levee MA9 1657+13 Landscaping Trees2634 Sacramento River East Levee MA9 1657+66 Pole Light3704 Sacramento River East Levee MA9 1658+05 Landscaping3840 Sacramento River East Levee MA9 1659+41 Gate Needs Data4468 Sacramento River East Levee MA9 1659+51 Pole Sign3705 Sacramento River East Levee MA9 1659+96 Landscaping2636 Sacramento River East Levee MA9 1664+21 Other Fire Hydrant2648 Sacramento River East Levee MA9 1664+62 Pump Station Intake4469 Sacramento River East Levee MA9 1667+82 Landscaping Tree2474 Sacramento River East Levee MA9 1668+81 Pump Station Sump 28 City of Sacramento4470 Sacramento River East Levee MA9 1669+21 Landscaping Tree2643 Sacramento River East Levee MA9 1669+34 Pump Station Sump 28 City of Sacramento2528 Sacramento River East Levee MA9 1677+03 Other Buried Wire Frontier Communications2529 Sacramento River East Levee MA9 1677+13 Pole Utility2533 Sacramento River East Levee MA9 1678+18 Pump Station Drainage City of Sacramento4475 Sacramento River East Levee MA9 1678+45 Gate Top of levee2530 Sacramento River East Levee MA9 1678+57 Pole Utility2534 Sacramento River East Levee MA9 1680+13 Pole Utility4478 Sacramento River East Levee MA9 1680+72 Landscaping Trees

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2535 Sacramento River East Levee MA9 1681+81 Pole Utility2536 Sacramento River East Levee MA9 1683+19 Pole Utility2537 Sacramento River East Levee MA9 1684+78 Pole Utility2538 Sacramento River East Levee MA9 1686+25 Pole Utility2539 Sacramento River East Levee MA9 1687+91 Pole Utility2543 Sacramento River East Levee MA9 1689+62 Structure large vault2542 Sacramento River East Levee MA9 1689+73 Pole Utility2544 Sacramento River East Levee MA9 1691+52 Pole Utility2545 Sacramento River East Levee MA9 1692+86 Pole Utility4479 Sacramento River East Levee MA9 1695+28 Landscaping Trees2546 Sacramento River East Levee MA9 1698+09 Pole Utility2547 Sacramento River East Levee MA9 1700+14 Pole Utility3450 Sacramento River East Levee MA9 1700+24 Access Gate4480 Sacramento River East Levee MA9 1700+24 Gate Landside broken3451 Sacramento River East Levee MA9 1701+69 Structure3452 Sacramento River East Levee MA9 1702+52 Structure4481 Sacramento River East Levee MA9 1703+32 Landscaping Overgrown 2570 Sacramento River East Levee MA9 1703+56 Stairway Wood Private3453 Sacramento River East Levee MA9 1703+94 Structure4482 Sacramento River East Levee MA9 1704+32 Stairway Walkway embedded into levee3455 Sacramento River East Levee MA9 1704+55 Structure3454 Sacramento River East Levee MA9 1704+63 Stairway3456 Sacramento River East Levee MA9 1705+12 Landscaping2571 Sacramento River East Levee MA9 1705+32 Stairway Wood Private4483 Sacramento River East Levee MA9 1707+25 Gate Landside ramp3458 Sacramento River East Levee MA9 1707+30 Access Gate4484 Sacramento River East Levee MA9 1707+71 Landscaping Trees2569 Sacramento River East Levee MA9 1709+39 Structure Building3459 Sacramento River East Levee MA9 1710+79 Pole2568 Sacramento River East Levee MA9 1710+82 Stairway Concrete Private2566 Sacramento River East Levee MA9 1711+02 Boating Facility Dock4485 Sacramento River East Levee MA9 1711+18 Landscaping Tree3460 Sacramento River East Levee MA9 1711+49 Structure2563 Sacramento River East Levee MA9 1711+73 Valve Electric2562 Sacramento River East Levee MA9 1712+25 Pole Utility2561 Sacramento River East Levee MA9 1712+95 Pole Utility2560 Sacramento River East Levee MA9 1713+19 Stairway Concrete Private3461 Sacramento River East Levee MA9 1713+46 Structure

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4488 Sacramento River East Levee MA9 1713+60 Stairway Wood waterside4486 Sacramento River East Levee MA9 1713+67 Landscaping Tree4487 Sacramento River East Levee MA9 1713+77 Pole Steel pole with flags2498 Sacramento River East Levee MA9 1716+09 Stairway Concrete Catherine V. Morabito3462 Sacramento River East Levee MA9 1718+09 Structure3463 Sacramento River East Levee MA9 1718+71 Landscaping3464 Sacramento River East Levee MA9 1719+03 Access Gate4490 Sacramento River East Levee MA9 1719+61 Gate 16.5 ft2558 Sacramento River East Levee MA9 1719+84 Other DI2556 Sacramento River East Levee MA9 1720+00 Pole Utility2557 Sacramento River East Levee MA9 1720+36 Pole Utility2554 Sacramento River East Levee MA9 1721+16 Pole Light2553 Sacramento River East Levee MA9 1721+27 Stairway Concrete Private2555 Sacramento River East Levee MA9 1721+30 Structure Building Private2551 Sacramento River East Levee MA9 1721+61 Stairway Concrete Private3803 Sacramento River East Levee MA9 1721+75 Landscaping2550 Sacramento River East Levee MA9 1721+83 Stairway Concrete Private3470 Sacramento River East Levee MA9 1721+83 Boating Facility Dock2549 Sacramento River East Levee MA9 1721+88 Pole Utility2552 Sacramento River East Levee MA9 1721+99 Structure Building3465 Sacramento River East Levee MA9 1722+57 Landscaping4491 Sacramento River East Levee MA9 1722+64 Landscaping Thick overgrown shrubs and trees4492 Sacramento River East Levee MA9 1723+46 Landscaping Trees4493 Sacramento River East Levee MA9 1726+61 Gate 17ft2572 Sacramento River East Levee MA9 1729+20 Other Propane tank2440 Sacramento River East Levee MA9 1729+43 Bridge Rehabilitate Sacramento County2488 Sacramento River East Levee MA9 1729+54 Bridge Rehabilitate Sacramento County2579 Sacramento River East Levee MA9 1729+78 Other Electrical Vault2578 Sacramento River East Levee MA9 1729+79 Well Monitoring Well2580 Sacramento River East Levee MA9 1730+03 Other Electrical equipment2581 Sacramento River East Levee MA9 1730+14 Pole Utility2582 Sacramento River East Levee MA9 1730+49 Pole Utility2584 Sacramento River East Levee MA9 1732+88 Pole Utility4494 Sacramento River East Levee MA9 1732+99 Gate4495 Sacramento River East Levee MA9 1734+22 Landscaping Trees3466 Sacramento River East Levee MA9 1734+55 Access Gate2592 Sacramento River East Levee MA9 1734+92 Valve Unknown4496 Sacramento River East Levee MA9 1734+98 Gate

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2589 Sacramento River East Levee MA9 1735+10 Well Monitoring Well2586 Sacramento River East Levee MA9 1735+12 Valve Water2587 Sacramento River East Levee MA9 1735+14 Valve Water2588 Sacramento River East Levee MA9 1735+18 Well Monitoring Well2585 Sacramento River East Levee MA9 1735+22 Well Monitoring Well2590 Sacramento River East Levee MA9 1735+24 Valve Manhole2591 Sacramento River East Levee MA9 1735+39 Structure Building2595 Sacramento River East Levee MA9 1735+62 Valve Vault2596 Sacramento River East Levee MA9 1735+70 Pole Utility2597 Sacramento River East Levee MA9 1735+89 Pole Utility4497 Sacramento River East Levee MA9 1736+77 Gate3467 Sacramento River East Levee MA9 1737+17 Access Gate2598 Sacramento River East Levee MA9 1737+93 Pole Utility2599 Sacramento River East Levee MA9 1740+57 Pole Utility2600 Sacramento River East Levee MA9 1742+55 Structure Pump house2601 Sacramento River East Levee MA9 1742+96 Pole Utility2602 Sacramento River East Levee MA9 1744+24 Pole Utility2603 Sacramento River East Levee MA9 1745+54 Pole Utility2604 Sacramento River East Levee MA9 1747+23 Pole Utility2605 Sacramento River East Levee MA9 1748+25 Pole Utility4498 Sacramento River East Levee MA9 1749+55 Landscaping Trees2606 Sacramento River East Levee MA9 1750+93 Pole Utility2607 Sacramento River East Levee MA9 1753+49 Pole Utility3469 Sacramento River East Levee MA9 1754+69 Access Gate2608 Sacramento River East Levee MA9 1756+02 Pole Utility3192 Sacramento River East Levee MA9 1756+84 Structure Pump house2609 Sacramento River East Levee MA9 1758+29 Pole Utility3053 Sacramento River East Levee MA9 1760+58 Pole Utility3059 Sacramento River East Levee MA9 1761+94 Other steel beam3060 Sacramento River East Levee MA9 1762+70 Boating Facility Dock3054 Sacramento River East Levee MA9 1762+89 Pole Utility2621 Sacramento River East Levee MA9 1765+22 Pole Utility3056 Sacramento River East Levee MA9 1767+40 Other Drainage2622 Sacramento River East Levee MA9 1767+50 Pole Utility2623 Sacramento River East Levee MA9 1769+76 Pole Utility4500 Sacramento River East Levee MA9 1769+90 Gate3061 Sacramento River East Levee MA9 1770+55 Valve Water3063 Sacramento River East Levee MA9 1770+55 Pump Station pump SRCSD

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American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3064 Sacramento River East Levee MA9 1770+55 Pole Utility3065 Sacramento River East Levee MA9 1770+55 Pole3066 Sacramento River East Levee MA9 1770+55 Other Propane tank3067 Sacramento River East Levee MA9 1770+55 Pole Crane3068 Sacramento River East Levee MA9 1770+55 Structure Building3069 Sacramento River East Levee MA9 1770+55 Other Electrical equipment4501 Sacramento River East Levee MA9 1770+55 Gate Levee access

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EXHIBIT 3A2. Table Summary of Linear Encroachments
American South Levee System (ASLS) - Linear Encroachments SAFCA ID Levee Unit Station Category Subcategory Permit Num Owner 151 American River South Levee AR04 1000+00 Landscaping 12836 Blunk Associates Architects, Days Inn Motel 1000 American River South Levee AR04 1000+00 Bike Path
23 American River South Levee AR04 1005+51 Fence
155 American River South Levee AR04 1009+31 Fence157 American River South Levee AR04 1013+33 Fence159 American River South Levee AR04 1018+91 Fence 1094 American River South Levee AR04 1027+98 Fence Chainlink 160 American River South Levee AR04 1033+59 Fence
1093 American River South Levee AR04 1046+77 Fence Cable wood post fence 136 American River South Levee AR04 1049+07 Landscaping 16304 Sacramento Tree Foundation 1092 American River South Levee AR04 1085+04 Other
162 American River South Levee AR04 1087+37 Fence w/ debris and trees within 15 ft access 142 American River South Levee AR04 1094+66 Landscaping 6082 State Division of Highways144 American River South Levee AR04 1110+15 Railroad Relocate railroad to east 7287 Sacramento Northern Railway981 American River South Levee AR04 1111+65 Bike Path184 American River South Levee AR04 1149+54 Fence 1089 American River South Levee AR04 1224+85 Fence1084 American River South Levee AR04 1241+97 Fence1081 American River South Levee AR04 1249+80 Fence1079 American River South Levee AR04 1254+35 Fence1078 American River South Levee AR04 1266+08 Fence1077 American River South Levee AR04 1271+93 Fence1075 American River South Levee AR04 1274+18 Other Bike Trail 1076 American River South Levee AR04 1274+18 Landscaping Tree1074 American River South Levee AR04 1275+28 Landscaping Tree1073 American River South Levee AR04 1279+85 Fence1071 American River South Levee AR04 1292+13 Fence1070 American River South Levee AR04 1295+76 Fence1069 American River South Levee AR04 1297+81 Fence1068 American River South Levee AR04 1309+39 Fence 141 American River South Levee AR04 1319+05 Bike Path Bike Path 17349 City of Sacramento, Department of Public works 143 American River South Levee AR04 1319+05 Landscaping 3054 Sacramento State College 1066 American River South Levee AR04 1319+05 Fence
147 American River South Levee AR04 1338+67 Fence 6973 California State University, Sacramento 1064 American River South Levee AR04 1338+67 Landscaping 178 American River South Levee AR04 1345+38 Fence145 American River South Levee AR04 1353+32 Bike Path 12744 County of Sacramento, Department of Parks and Recreation179 American River South Levee AR04 1353+32 Fence150 American River South Levee AR04 1358+67 Fence Temporary 3882 Fruin-Colnon Co. Inc183 American River South Levee AR04 1361+57 Fence 1061 American River South Levee AR04 1369+26 Fence1062 American River South Levee AR04 1369+26 Fence 152 American River South Levee AR04 1372+64 Landscaping Irrigation 11798 Blossom Investments 1060 American River South Levee AR04 1375+97 Fence
154 American River South Levee AR04 1382+52 Landscaping Irrigation 12033 Camray Development and Construction Company 1059 American River South Levee AR04 1382+52 Fence1058 American River South Levee AR04 1386+05 Fence1057 American River South Levee AR04 1386+79 Fence1056 American River South Levee AR04 1390+33 Fence1053 American River South Levee AR04 1403+09 Fence1052 American River South Levee AR04 1439+58 Landscaping Rock

Page 1 of 4 ends

American South Levee System (ASLS) - Linear Encroachments SAFCA ID Levee Unit Station Category Subcategory Permit Num Owner 173 American River South Levee AR04 1442+01 Fence
1051 American River South Levee AR04 1454+84 Landscaping Tree 1049 American River South Levee AR04 1479+98 Fence
171 American River South Levee AR04 1486+86 Fence
1048 American River South Levee AR04 1491+56 Fence
170 American River South Levee AR04 1499+55 Fence169 American River South Levee AR04 1509+52 Fence 1047 American River South Levee AR04 1514+01 Fence
167 American River South Levee AR04 1522+18 Fence166 American River South Levee AR04 1524+45 Fence168 American River South Levee AR04 1539+42 Fence165 American River South Levee AR04 1549+84 Fence131 American River South Levee AR04 Other Pedestrian bridge / fence 12515 Sacramento County, Highways and Bridges Division 153 American River South Levee AR04 Structure restrooms 11893 County of Sacramento, Department of Parks and Recreation 156 American River South Levee AR04 Fence161 American River South Levee AR04 Fence163 American River South Levee AR04 Fence gate164 American River South Levee AR04 Fence172 American River South Levee AR04 Fence180 American River South Levee AR04 Cutoff Wall182 American River South Levee AR04 Fence bollard and cable 1041 American River South Levee AR04 Fence1042 American River South Levee AR04 Fence1043 American River South Levee AR04 Fence1045 American River South Levee AR04 Fence1046 American River South Levee AR04 Fence1050 American River South Levee AR04 Fence1054 American River South Levee AR04 Fence1055 American River South Levee AR04 Fence1065 American River South Levee AR04 Fence1067 American River South Levee AR04 Fence1072 American River South Levee AR04 Fence1080 American River South Levee AR04 Fence1082 American River South Levee AR04 Landscaping1083 American River South Levee AR04 Fence1085 American River South Levee AR04 Pole 24 Sacramento River East Levee AR05 1002+11 Fence25 Sacramento River East Levee AR05 1004+23 Fence26 Sacramento River East Levee AR05 1008+32 Fence 1095 Sacramento River East Levee AR05 1010+00 Fence1098 Sacramento River East Levee SACD 1027+82 Fence Chainlink1007 Sacramento River East Levee SACD 1083+91 Bike Path 122 Sacramento River East Levee SACD 1087+37 Fence121 Sacramento River East Levee SACD 1089+58 Fence115 Sacramento River East Levee SACD 1105+11 Fence116 Sacramento River East Levee SACD 1105+11 Fence117 Sacramento River East Levee SACD 1108+08 Fence119 Sacramento River East Levee SACD 1117+16 Fence landward side 120 Sacramento River East Levee SACD 1135+28 Fence111 Sacramento River East Levee SACD 1147+79 Fence110 Sacramento River East Levee SACD 1154+62 Fence

Page 2 of 4 ends

American South Levee System (ASLS) - Linear Encroachments SAFCA ID Levee Unit Station Category Subcategory Permit Num Owner 109 Sacramento River East Levee SACD 1163+92 Fence108 Sacramento River East Levee SACD 1183+03 Fence 28 Sacramento River East Levee SACD 1198+86 Fence27 Sacramento River East Levee SACD 1211+33 Fence 114 Sacramento River East Levee SACD Fence118 Sacramento River East Levee SACD Fence waterward side of levee 1096 Sacramento River East Levee SACD Fence1097 Sacramento River East Levee SACD Fence 268 Sacramento River East Levee MA9 1215+96 Bike Path Paved 13425 City of Sacramento 260 Sacramento River East Levee MA9 1233+99 Other Marina 12735 Harry Schillings266 Sacramento River East Levee MA9 1233+99 Structure Restaurant / Dock / Marina 17207 Captains Table Hotel LLC, / Robert Leach 1009 Sacramento River East Levee MA9 1235+18 curb
256 Sacramento River East Levee MA9 1260+16 Cutoff Wall 110 ft deep 17646 SAFCA 1100 Sacramento River East Levee MA9 1279+54 Fence1101 Sacramento River East Levee MA9 1282+69 Fence1102 Sacramento River East Levee MA9 1291+47 Fence1103 Sacramento River East Levee MA9 1294+73 Fence1104 Sacramento River East Levee MA9 1303+12 Fence Along toe of levee 257 Sacramento River East Levee MA9 1305+25 Landscaping Trees 12612 City of Sacramento, Recreation and Parks Department 1105 Sacramento River East Levee MA9 1313+81 Fence Toe Landside1106 Sacramento River East Levee MA9 1315+77 Fence 283 Sacramento River East Levee MA9 1317+97 Bike Path Paved 13425 City of Sacramento 1107 Sacramento River East Levee MA9 1317+97 Fence
280 Sacramento River East Levee MA9 1340+33 Bike Path
1110 Sacramento River East Levee MA9 1367+28 Fence Along toe1139 Sacramento River East Levee MA9 1420+53 Fence1138 Sacramento River East Levee MA9 1424+79 Fence1134 Sacramento River East Levee MA9 1443+63 Fence1133 Sacramento River East Levee MA9 1447+07 Fence 435 Sacramento River East Levee MA9 1459+00 visibility265 Sacramento River East Levee MA9 1481+88 Landscaping 13641 Underwood - Wiese Company 259 Sacramento River East Levee MA9 1529+65 Cutoff Wall 110 ft deep 17646.1 SAFCA990 Sacramento River East Levee MA9 1532+78 paved path255 Sacramento River East Levee MA9 1535+90 Landscaping Irrigation 16600 City of Sacramento/River Villilage Homeowners Association 1116 Sacramento River East Levee MA9 1549+30 Fence Landside top of levee 270 Sacramento River East Levee MA9 1553+55 Bike Path 17198 City of Sacramento 1120 Sacramento River East Levee MA9 1553+55 Fence Pole 258 Sacramento River East Levee MA9 1578+16 Landscaping Vegetation 14814 Beard and Hoshaw Investment Company 261 Sacramento River East Levee MA9 1587+01 Landscaping Vegetation 14813 Beard and Hoshaw Investment Company 1122 Sacramento River East Levee MA9 1599+45 Fence Rods 269 Sacramento River East Levee MA9 1602+07 Bike Path 839 ft 15725 City of Sacramento 1128 Sacramento River East Levee MA9 1718+49 Fence Wood rope 263 Sacramento River East Levee MA9 Landscaping Oak Trees 15880 Andrew Hiroshima264 Sacramento River East Levee MA9 Fence Steps 17407 Rodney Yung/Wayne B. Brown 267 Sacramento River East Levee MA9 Landscaping Removal 15731 Lindsay and Edwina D. White274 Sacramento River East Levee MA9 Fence275 Sacramento River East Levee MA9 Fence 1099 Sacramento River East Levee MA9 Fence How fence1108 Sacramento River East Levee MA9 Fence Top of levee Landside 1109 Sacramento River East Levee MA9 Fence1112 Sacramento River East Levee MA9 Fence Chainlink

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American South Levee System (ASLS) - Linear Encroachments SAFCA ID Levee Unit Station Category Subcategory Permit Num Owner 1113 Sacramento River East Levee MA9 Fence pole fence1114 Sacramento River East Levee MA9 Fence Pole fence1115 Sacramento River East Levee MA9 Fence Chainlink1117 Sacramento River East Levee MA9 Fence Pole1118 Sacramento River East Levee MA9 Fence1119 Sacramento River East Levee MA9 Fence Pole fence on slope1121 Sacramento River East Levee MA9 Fence New fence with 10ft of toe1123 Sacramento River East Levee MA9 Fence Into levee1125 Sacramento River East Levee MA9 Fence Bollard gate1126 Sacramento River East Levee MA9 Fence Wood cable1127 Sacramento River East Levee MA9 Fence Wood cable1129 Sacramento River East Levee MA9 Fence Bollard1130 Sacramento River East Levee MA9 Fence1132 Sacramento River East Levee MA9 Fence Iron1135 Sacramento River East Levee MA9 Fence1136 Sacramento River East Levee MA9 Fence1137 Sacramento River East Levee MA9 Fence1140 Sacramento River East Levee MA9 Fence

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EXHIBIT 3B. Table Summary of Penetrations and Associated Structures
American South Levee System (ASLS) - Penetrations
SAFCA ID Assoc. ID Levee Unit Station Category Subcategory Size (In) Material Permit Num Owner 3369 American River South Levee AR04 1004+61 Pipe Sewer 2 WSP 12907 BD County of Sacramento Parks3367 American River South Levee AR04 1004+69 Pipe Water 2 PVC 12907 BD County of Sacramento Parks3368 American River South Levee AR04 1004+82 Conduit Electric 2 STL 12907 BD County of Sacramento Parks1794 American River South Levee AR04 1010+06 Valve Manhole - Drainage Not Needed Not Needed 17171 City of Sacramento1841 1841 American River South Levee AR04 1010+16 Valve Manhole - Water Not Needed Not Needed 17171 City of Sacramento1790 American River South Levee AR04 1012+57 Parallel Pipe Landside Drainage Not Needed STL 999991989 American River South Levee AR04 1013+60 Pipe Water 24 WSP 13114 City of Sacramento3110 1819, 3108, 3109, 3110 American River South Levee AR04 1048+01 Pipe Drainage 42 WSP 5212 City of Sacramento1819 1819, 3108, 3109, 3110 American River South Levee AR04 1048+07 Pipe Drainage 12 WSP 5212 City of Sacramento3109 1819, 3108, 3109, 3110 American River South Levee AR04 1048+10 Pipe Drainage 42 WSP 5212 City of Sacramento3108 1819, 3108, 3109, 3110 American River South Levee AR04 1048+15 Pipe Drainage 42 WSP 5212 City of Sacramento4354 American River South Levee AR04 1099+16 Pipe Sewer 18 WSP 858 Hagginwood Sanitary District4355 American River South Levee AR04 1099+17 Pipe Abandoned 12 WSP 19518 PG&E2402 American River South Levee AR04 1101+19 Conduit Fiber Optic 1.5 Transite 2965 Pacific Telephone and Telegraph Company2385 American River South Levee AR04 1111+32 Pipe Water 48 WSP 12432, 12432-A City of Sacramento3866 American River South Levee AR04 1112+11 Abandoned Pipe Abandoned 30 WSP SRCSD2378 American River South Levee AR04 1118+30 Conduit Cable 1 GI 14045 U/Private utility2380 American River South Levee AR04 1118+30 Conduit Fiber Optic 4 GI 14150 MCI2357 American River South Levee AR04 1144+85 Abandoned Pipe Drainage 18 WSP 3362, 3362-A Robert Powell Products, Inc.3257 American River South Levee AR04 1154+85 Parallel Pipe Landside Drainage 3 PVC City of Sacramento3346 2343 American River South Levee AR04 1157+55 Pipe Petroleum 12 WSP 14528 Kinder Morgan2343 3346 American River South Levee AR04 1157+65 Valve Petroleum Not Needed 14528 Southern Pacific Pipelines2415 American River South Levee AR04 1168+41 Parallel Pipe Landside Drainage Not Needed PVC1839 1839 American River South Levee AR04 1178+99 Gravity Pipe Gravity Drainage 12 CMP 5890 City of Sacramento4332 American River South Levee AR04 1186+88 Pipe Unknown 14 WSP Unknown Unknown2422 1887 American River South Levee AR04 1188+74 Control Structure Outfall Not Needed Not Needed 15041 City of Sacramento1887 1887 American River South Levee AR04 1188+78 Gravity Pipe Gravity Drainage 32 RCP 13879 City of Sacramento2419 1887 American River South Levee AR04 1188+87 Valve Manhole - Drainage Not Needed Not Needed 15041 City of Sacramento2418 1887 American River South Levee AR04 1188+89 Valve Manhole - Drainage Not Needed Not Needed 15041 City of Sacramento4330 1887 American River South Levee AR04 1188+89 Valve Manhole - Drainage Not Needed Not Needed 15041 City of Sacramento2163 American River South Levee AR04 1194+50 Conduit Fiber Optic 10 STL 17176 Williams Communications2167 3256 American River South Levee AR04 1197+84 Valve Manhole - Drainage Not Needed Not Needed City of Sacramento1039 American River South Levee AR04 1203+02 Gravity Pipe Gravity Drainage 24 CMP 1587 Caltrans2160 1039 American River South Levee AR04 1203+18 Control Structure Outfall Not Needed Not Needed 1587 Caltrans4324 American River South Levee AR04 1203+43 Pipe Drainage 12 WSP 17840 - extended Caltrans1814 1814 American River South Levee AR04 1205+04 Pipe Sewer 18 RCP 2805 SRCSD2148 2152 American River South Levee AR04 1207+80 Control Structure Outfall Not Needed Not Needed City of Sacramento2152 2152 American River South Levee AR04 1207+82 Pipe Drainage 66 WSP 5218 City of Sacramento2223 1815, 1907, 2223, 2224 American River South Levee AR04 1242+05 Pipe Drainage 24 WSP 1680 City of Sacramento1907 1815, 1907, 2223, 2224 American River South Levee AR04 1242+10 Pipe Drainage 24 WSP 1680 City of Sacramento1815 1815, 1907, 2223, 2224 American River South Levee AR04 1242+16 Pipe Drainage 24 WSP 1680 City of Sacramento2224 1815, 1907, 2223, 2224 American River South Levee AR04 1242+23 Pipe Drainage 24 WSP 1680 City of Sacramento3254 American River South Levee AR04 1255+62 Parallel Pipe Sewer 6 STL City of Sacramento1845 2145, 2146, 2147 American River South Levee AR04 1313+89 Control Structure Outfall Not Needed Not Needed 19577 City of Sacramento2147 2145, 2146, 2147 American River South Levee AR04 1314+46 Gravity Pipe Gravity Drainage 42 RCP 19577 City of Sacramento2146 2145, 2146, 2147 American River South Levee AR04 1314+56 Pipe Drainage 42 HDPE 19577 City of Sacramento3198 2145, 2146, 2147 American River South Levee AR04 1314+58 Pipe Drainage 42 HDPE 19577 City of Sacramento4066 American River South Levee AR04 1315+92 Parallel Pipe Sewer 78 RCP 1839(?)4299 American River South Levee AR04 1320+33 Conduit Electric 3 STL 1595 Pacific Telephone and Telegraph Company4301 American River South Levee AR04 1320+33 Pipe Abandoned 14 WSP 5152 - install City of Sacramento1866 American River South Levee AR04 1320+38 Pipe Water 14 WSP 5152 City of Sacramento1843 1843 American River South Levee AR04 1320+65 Pipe Drainage 66 WSP 5685 City of Sacramento1865 1865 American River South Levee AR04 1323+34 Pipe Drainage 16 HDPE 16236 California State University, Sacramento2340 2340 American River South Levee AR04 1344+07 Parallel Pipe Landside Drainage Not Needed Not Needed California State University, Sacramento

Page 1 of 6 ends

American South Levee System (ASLS) - Penetrations
SAFCA ID Assoc. ID Levee Unit Station Category Subcategory Size (In) Material Permit Num Owner 4278 American River South Levee AR04 1346+73 Valve Manhole - Electric Not Needed Not Needed 5417 SMUD4272 American River South Levee AR04 1346+76 Conduit Electric 5 nonmetallic concrete encased 5417 SMUD 4273 American River South Levee AR04 1346+80 Conduit Electric 5 nonmetallic concrete encased 5417 SMUD3117 1860, 3117, 3118, 3119, 3120, 3121 American River South Levee AR04 1347+02 Pipe Drainage 24 WSP 7062 California State University, Sacramento 1860 1860, 3117, 3118, 3119, 3120, 3121 American River South Levee AR04 1347+05 Pipe Drainage 24 WSP 7062 California State University, Sacramento3118 1860, 3117, 3118, 3119, 3120, 3121 American River South Levee AR04 1347+09 Pipe Drainage 24 WSP 7062 California State University, Sacramento3119 1860, 3117, 3118, 3119, 3120, 3121 American River South Levee AR04 1347+12 Pipe Drainage 14 WSP 1669 California State University, Sacramento3120 1860, 3117, 3118, 3119, 3120, 3121 American River South Levee AR04 1347+15 Pipe Drainage 20 WSP 1669 California State University, Sacramento3121 1860, 3117, 3118, 3119, 3120, 3121 American River South Levee AR04 1347+19 Pipe Drainage 20 WSP 1669, 7062 California State University, Sacramento2139 American River South Levee AR04 1354+84 Conduit Electric 1 Not Needed California State University, Sacramento2140 American River South Levee AR04 1355+12 Pipe Water 3 City of Sacramento3122 2263, 3122 American River South Levee AR04 1357+33 Pipe Drainage 48 HDPE 16961 City of Sacramento2263 2263, 3122 American River South Levee AR04 1357+46 Pipe Drainage 48 HDPE 16961 City of Sacramento3359 American River South Levee AR04 1360+21 Pipe Abandoned 60 WSP 12188 SRCSD3358 American River South Levee AR04 1360+34 Pipe Sewer 60 WSP 17671 SRCSD1868 1868 American River South Levee AR04 1360+41 Pipe Sewer 60 WSP 17671 SRCSD2304 2304, 2305, 2306, 2307 American River South Levee AR04 1363+20 Pipe Intake 48 RCB 15357 City of Sacramento2305 2304, 2305, 2306, 2307 American River South Levee AR04 1363+26 Pipe Intake 48 RCB 15357 City of Sacramento2306 2304, 2305, 2306, 2307 American River South Levee AR04 1363+32 Pipe Intake 48 RCB 15357 City of Sacramento2307 2304, 2305, 2306, 2307 American River South Levee AR04 1363+35 Pipe Intake 48 RCB 15357 City of Sacramento2292 American River South Levee AR04 1364+82 Pipe Intake 72 CONC 17667 City of Sacramento1857 American River South Levee AR04 1385+67 Conduit Fiber Optic 5 HDPE 17284 Brooks Communication of Sacramento3370 American River South Levee AR04 1385+80 Conduit Electric 5 PVC 6728 SMUD3353 American River South Levee AR04 1386+00 Pipe Water 24 WSP 6202 City of Sacramento2277 1823, 1908, 2277 American River South Levee AR04 1386+89 Pipe Drainage 30 WSP 3596-A City of Sacramento1908 1823, 1908, 2277 American River South Levee AR04 1386+96 Pipe Drainage 30 WSP 3596-A City of Sacramento1823 1823, 1908, 2277 American River South Levee AR04 1387+05 Pipe Drainage 30 WSP 3596-A City of Sacramento2276 American River South Levee AR04 1387+09 Control Structure Outfall Not Needed Not Needed 3596 City of Sacramento3252 American River South Levee AR04 1387+19 Abandoned Pipe Abandoned 48 CMP 3596-A City of Sacramento2054 American River South Levee AR04 1422+91 Parallel Pipe Not Needed Not Needed3133 3131, 3132, 3133 American River South Levee AR04 1439+69 Pipe Drainage 36 WSP 3596 City of Sacramento3132 3131, 3132, 3133 American River South Levee AR04 1439+79 Pipe Drainage 36 WSP 3596, 3596-A City of Sacramento3131 3131, 3132, 3133 American River South Levee AR04 1439+87 Pipe Drainage 36 WSP 3596 City of Sacramento2046 American River South Levee AR04 1439+95 Abandoned Pipe Drainage 54 CMP 3596 City of Sacramento1885 American River South Levee AR04 1464+41 Conduit Communication 1 STL 9125-B, 10948 Pacific Telephone and Telegraph Company2034 American River South Levee AR04 1468+29 Conduit Electric 5 STL 5997 SMUD2033 American River South Levee AR04 1468+37 Pipe Water 2 WSP 9125-A County of Sacramento Parks & Rec2032 American River South Levee AR04 1468+58 Pipe Conduit 5 STL 5997 SMUD1856 3138 American River South Levee AR04 1496+31 Gravity Pipe Gravity Drainage 54 CMP 3596 Sacramento County2025 3138 American River South Levee AR04 1496+38 Pipe Drainage 42 WSP 3596 Sacramento County3136 2025, 3136, 3137 American River South Levee AR04 1496+48 Pipe Drainage 42 WSP 3596 Sacramento County3137 2025, 3136, 3137 American River South Levee AR04 1496+56 Pipe Drainage 42 WSP 3596 Sacramento County4072 American River South Levee AR04 1526+89 Abandoned Pipe Abandoned 12 STL 5400 George P. Steiner4502 American River South Levee AR04 1555+00 Gravity Pipe Gravity Drainage 120 x 96 CIPC Box Sacramento County4503 American River South Levee AR04 1555+00 Gravity Pipe Gravity Drainage 120 x 96 CIPC Box Sacramento County4504 American River South Levee AR04 1555+00 Gravity Pipe Gravity Drainage 120 x 96 CIPC Box Sacramento County4505 American River South Levee AR04 1555+00 Gravity Pipe Gravity Drainage 120 x 96 CIPC Box Sacramento County3855 3853, 3854, 3855 American River South Levee AR04 1594+27 Pipe Drainage 30 WSP Sacramento County3854 3853, 3854, 3855 American River South Levee AR04 1594+34 Pipe Drainage 30 WSP Sacramento County3853 3853, 3854, 3855 American River South Levee AR04 1594+41 Pipe Drainage 30 WSP Sacramento County3852 3852 American River South Levee AR04 1594+48 Gravity Pipe Gravity Drainage 60 RCP Sacramento County 38 Sacramento River East Levee AR05 1010+05 Pipe Intake 48 RCP 11654 City of Sacramento 3374 Sacramento River East Levee AR05 1010+08 Pipe Intake 48 RCP 11654 City of Sacramento3355 Sacramento River East Levee AR05 1016+74 Pipe Water 54 WSP 17196 City of Sacramento

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American South Levee System (ASLS) - Penetrations
SAFCA ID Assoc. ID Levee Unit Station Category Subcategory Size (In) Material Permit Num Owner 3354 Sacramento River East Levee AR05 1016+98 Pipe Water 54 WSP 17196 City of Sacramento 25 Sacramento River East Levee AR05 1019+12 Conduit Fiber Optic 20 HDPE 17218 Williams Communications 1 Sacramento River East Levee AR05 1020+29 Gravity Pipe Gravity Drainage 30 CMP 5569 Southern Pacific Company 22 Sacramento River East Levee SACD 1021+31 Parallel Pipe Communication 3.5 RCP 5366 Pacific Telephone and Telegraph Company47 Sacramento River East Levee SACD 1021+83 Abandoned Pipe Abandoned 18 CMP 5920, 5920-A Peter Kiewit Sons' Company 282 9 Sacramento River East Levee SACD 1022+27 Pipe Petroleum 12.75 WSP 14527 Southern Pacific Pipelines, Inc. 3160 Sacramento River East Levee SACD 1027+01 Parallel Pipe Gas Not Needed Not Needed Not Needed PG&E4510 Sacramento River East Levee SACD 1027+58 Pipe Drainage 42 WSP 19134 City of Sacramento4511 Sacramento River East Levee SACD 1027+69 Pipe Drainage 42 WSP 19134 City of Sacramento4512 Sacramento River East Levee SACD 1027+77 Pipe Drainage 42 WSP 19134 City of Sacramento4513 Sacramento River East Levee SACD 1027+83 Pipe Drainage 42 WSP 19134 City of Sacramento4373 4510 Sacramento River East Levee SACD 1027+84 Control Structure Outfall 19134 City of Sacramento4514 Sacramento River East Levee SACD 1027+91 Pipe Drainage 12 WSP 19134 City of Sacramento3161 Sacramento River East Levee SACD 1028+07 Parallel Pipe Gas Not Needed Not Needed Not Needed PG&E3163 Sacramento River East Levee SACD 1028+66 Parallel Pipe Gas Not Needed Not Needed Not Needed PG&E4375 Sacramento River East Levee SACD 1028+78 Valve AV3162 Sacramento River East Levee SACD 1029+20 Parallel Pipe Gas Not Needed Not Needed Not Needed PG&E3164 Sacramento River East Levee SACD 1029+21 Parallel Pipe Gas Not Needed Not Needed Not Needed PG&E3237 Sacramento River East Levee SACD 1032+96 Abandoned Pipe Abandoned 10 STL 215 Sacramento River East Levee SACD 1042+73 Conduit Communication 4 Cable 2075, 3527, 7107 Pacific Telephone and Telegraph Company184 Sacramento River East Levee SACD 1055+07 Parallel Pipe Drainage Not Needed STL 99999266 Sacramento River East Levee SACD 1061+05 Abandoned Pipe Fiber Optic 8 WSP 17083 AT&T166 Sacramento River East Levee SACD 1066+03 Gravity Pipe Gravity Drainage 30 WSP 5695 Caltrans 3246 Sacramento River East Levee SACD 1069+03 Gravity Pipe Gravity Drainage 30 WSP 5687 City of Sacramento 245 Sacramento River East Levee SACD 1069+10 Gravity Pipe Gravity Drainage 30 WSP 5687 City of Sacramento 3245 Sacramento River East Levee SACD 1069+17 Gravity Pipe Gravity Drainage 30 WSP 5687 City of Sacramento4062 Sacramento River East Levee SACD 1073+28 Gravity Pipe Gravity Discharge 16 WSP 15189 Caltrans 182 Sacramento River East Levee SACD 1073+84 Abandoned Pipe Abandoned 36 WSP 3122, 5687 City of Sacramento204 Sacramento River East Levee SACD 1073+84 Abandoned Pipe Abandoned 26 WSP 3122, 5687 City of Sacramento205 Sacramento River East Levee SACD 1075+53 Parallel Pipe Water 14 WSP 18171 Caltrans225 Sacramento River East Levee SACD 1086+43 Abandoned Pipe Discharge 42 WSP Concrete Encased 5745 CA Dept of Water Resources 3260 Sacramento River East Levee SACD 1093+52 Abandoned Pipe Abandoned 6 Not Needed 3672 PG&E3265 Sacramento River East Levee SACD 1093+56 Abandoned Pipe Abandoned 6 Not Needed 3672 PG&E3262 Sacramento River East Levee SACD 1093+58 Abandoned Pipe Abandoned 4 Not Needed 3672 PG&E3263 Sacramento River East Levee SACD 1093+62 Abandoned Pipe Abandoned 6 Not Needed 3672 PG&E4064 Sacramento River East Levee SACD 1094+47 Pipe Gas 12 WSP 3672 PG&E3264 Sacramento River East Levee SACD 1094+90 Abandoned Pipe Abandoned 16 Not Needed 3672 PG&E3261 Sacramento River East Levee SACD 1095+02 Abandoned Pipe Abandoned 6 Not Needed 3672 PG&E3259 Sacramento River East Levee SACD 1095+53 Abandoned Pipe Abandoned 8 Not Needed 3672 PG&E4042 Sacramento River East Levee SACD 1095+69 Pipe Sewer 60 RCP City of Sacramento3258 Sacramento River East Levee SACD 1096+42 Pipe Intake 42 RCP 12196, 16611 SRCSD 260 Sacramento River East Levee SACD 1096+56 Gravity Pipe Gravity Water 120 RCP 12196 SRCSD253 Sacramento River East Levee SACD 1105+33 Pipe Gas 24 WSP 14732 PG&E236 Sacramento River East Levee SACD 1106+32 Pipe Gas 16 WSP 2371 PG&E280 Sacramento River East Levee SACD 1106+43 Pipe Gas 8 WSP 544 PG&E287 Sacramento River East Levee SACD 1112+37 Abandoned Pipe Abandoned Not Needed Not Needed 785, 17185 Tosco Corporation167 Sacramento River East Levee SACD 1112+89 Pipe Petroleum 10 WSP 5454 Kinder Morgan 4065 Sacramento River East Levee SACD 1112+91 Abandoned Pipe Abandoned 10 WSP 5454 Kinder Morgan4046 Sacramento River East Levee SACD 1112+97 Pipe Gas 3 WSP 1419 PG&E 207 267 Sacramento River East Levee SACD 1113+13 Pipe Water 12 STL 9259 City of Sacramento173 Sacramento River East Levee SACD 1113+86 Pipe Petroleum 10 WSP 8816 Phillips Petroleum Company 4047 Sacramento River East Levee SACD 1113+86 Pipe Petroleum 10 WSP 8816 Phillips Petroleum Company4048 Sacramento River East Levee SACD 1113+86 Pipe Petroleum 10 WSP 8816 Phillips Petroleum Company4049 Sacramento River East Levee SACD 1113+86 Pipe Petroleum 10 WSP 8816 Phillips Petroleum Company

Page 3 of 6 ends

American South Levee System (ASLS) - Penetrations
SAFCA ID Assoc. ID Levee Unit Station Category Subcategory Size (In) Material Permit Num Owner 276 Sacramento River East Levee SACD 1115+30 Pipe Petroleum 8 WSP 4914 Standard Oil Company of CA 4041 Sacramento River East Levee SACD 1124+01 Conduit Telephone 4 PVC 14848 SMUD4073 Sacramento River East Levee SACD 1124+22 Pipe Water 8 PVC None City of Sacramento 681 Sacramento River East Levee SACD 1125+00 Pipe Drainage 6 ACP 7434 City of Sacramento244 Sacramento River East Levee SACD 1125+08 Conduit Electrical 4 PVC 14848 SMUD682 Sacramento River East Levee SACD 1128+71 Parallel Pipe Abandoned Not Needed STL City of Sacramento680 Sacramento River East Levee SACD 1130+54 Parallel Pipe Abandoned Not Needed STL City of Sacramento679 Sacramento River East Levee SACD 1130+86 Parallel Pipe Drainage 6 PVC 4387 Sacramento River East Levee SACD 1144+22 Pipe Petroleum Pipeline 8 WSP 4914 Chevron Pipe Line Company 252 Sacramento River East Levee SACD 1173+79 Conduit Electric 5 STL 5999 SMUD175 Sacramento River East Levee SACD 1173+87 Conduit Electrical 5 WSP 5999 SMUD670 Sacramento River East Levee SACD 1174+02 Pipe Drainage 2 Copper 2043 City of Sacramento 4040 Sacramento River East Levee SACD 1174+04 Pipe Telephone 1.25 STL 2043 AT&T 669 Sacramento River East Levee SACD 1174+07 Gravity Pipe Gravity Intake 24 WSP 2043 City of Sacramento672 Sacramento River East Levee SACD 1174+27 Control Structure Outfall Not Needed WSP 2043 City of Sacramento665 195 Sacramento River East Levee SACD 1189+37 Parallel Pipe Sewer 96 CONC 5123 City of Sacramento246 217 Sacramento River East Levee SACD 1189+61 Parallel Pipe Sewer 96 CONC 5123 City of Sacramento 4059 Sacramento River East Levee SACD 1189+84 Pipe Sewer 84 STL 773 City of Sacramento 291 Sacramento River East Levee SACD 1200+20 Parallel Pipe Drainage 18 CMP Not Needed 4000 Sacramento River East Levee MA9 1238+03 Abandoned Pipe Electrical 2.5 STL 6152, 6152-A SMUD2799 Sacramento River East Levee MA9 1238+15 Abandoned Pipe Abandoned 1 STL 3376 City of Sacramento4001 Sacramento River East Levee MA9 1239+07 Pipe Gas 1.5 WSP 2536 PG&E4002 Sacramento River East Levee MA9 1240+10 Pipe Gas 0.75 WSP 6332 PG&E2815 Sacramento River East Levee MA9 1244+22 Pipe Water 4 STL 17207-A Captain's Table Hotel LLC2823 Sacramento River East Levee MA9 1246+41 Pipe Sewer 2 PVC 17207-A Captain's Table Hotel LLC2831 Sacramento River East Levee MA9 1249+15 Abandoned Pipe Abandoned Not Needed Not Needed City of Sacramento3267 4003 Sacramento River East Levee MA9 1255+80 Parallel Pipe Drainage 21 WSP 16048 City of Sacramento4003 Sacramento River East Levee MA9 1256+67 Pipe Discharge 21 WSP 14143 City of Sacramento2947 Sacramento River East Levee MA9 1260+83 Conduit Electrical 1 STL 4809 Ernest L. Long2928 Sacramento River East Levee MA9 1264+55 Conduit Electrical 2 PVC 19841 Patrick Hienrichsen3522 Sacramento River East Levee MA9 1265+11 Conduit Electrical 1 GI 6292 Private2922 Sacramento River East Levee MA9 1266+21 Conduit Electrical 0.75 PVC 17428 Private2921 Sacramento River East Levee MA9 1266+46 Conduit Electrical 1.5 PVC 17428 Rev Private4390 Sacramento River East Levee MA9 1266+92 Conduit Elec Line with Post and Light 1.5 PVC None Private3525 Sacramento River East Levee MA9 1269+00 Conduit Electrical 1 PVC 6293 Private3524 Sacramento River East Levee MA9 1269+01 Conduit Electrical 1 PVC 6293 Private2892 Sacramento River East Levee MA9 1270+00 Conduit Electrical 1 PVC None Private3268 Sacramento River East Levee MA9 1300+68 Parallel Pipe Sewer 6 Not Needed City of Sacramento2856 2854 Sacramento River East Levee MA9 1310+41 Control Structure Outfall Not Needed Not Needed2854 Sacramento River East Levee MA9 1311+41 Gravity Pipe Gravity Drainage 96 x 96 RCB 5304-A City of Sacramento4061 Sacramento River East Levee MA9 1311+44 Abandoned Pipe Sewer 30 WSP 1146, 5991-B City of Sacramento2783 Sacramento River East Levee MA9 1321+17 Gravity Pipe Gravity Drainage 30 WSP 5183 Caltrans2789 Sacramento River East Levee MA9 1321+70 Parallel Pipe Water Not Needed Not Needed U/Private2774 Sacramento River East Levee MA9 1328+28 Conduit Electrical 1 STL 7889-A SRCSD2771 2782 Sacramento River East Levee MA9 1328+31 Gravity Pipe Gravity Sewer 78 RCP 1636 SRCSD4068 Sacramento River East Levee MA9 1350+70 Abandoned Pipe Abandoned 6 WSP 5179 E.M. Zacharias2755 Sacramento River East Levee MA9 1354+84 Abandoned Pipe Abandoned 12 WSP 51794060 Sacramento River East Levee MA9 1354+99 Abandoned Pipe Abandoned 6 WSP 51792751 Sacramento River East Levee MA9 1360+25 Pipe Drainage 24 WSP 3569 City of Sacramento2752 Sacramento River East Levee MA9 1360+29 Pipe Drainage 24 WSP 3569 City of Sacramento2753 Sacramento River East Levee MA9 1360+33 Pipe Drainage 24 WSP 3569 City of Sacramento2754 Sacramento River East Levee MA9 1360+37 Pipe Drainage 24 WSP 3569 City of Sacramento4069 Sacramento River East Levee MA9 1360+37 Pipe Irrigation 2 PVC 2679 Private2995 Sacramento River East Levee MA9 1370+11 Conduit Electrical 2 STL 17609 Private

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American South Levee System (ASLS) - Penetrations
SAFCA ID Assoc. ID Levee Unit Station Category Subcategory Size (In) Material Permit Num Owner 2997 Sacramento River East Levee MA9 1370+14 Conduit Electrical 1 PVC None Private2971 Sacramento River East Levee MA9 1382+99 Conduit Electrical Not Needed None Private2970 Sacramento River East Levee MA9 1383+46 Conduit Electrical 1.5 STL None Private4416 Sacramento River East Levee MA9 1425+06 Control Structure Outfall Not Needed Not Needed3026 Sacramento River East Levee MA9 1425+37 Pipe Drainage 24 WSP 3981 City of Sacramento3025 Sacramento River East Levee MA9 1425+39 Pipe Drainage 24 WSP 3981 City of Sacramento4414 Sacramento River East Levee MA9 1425+41 Control Structure3024 Sacramento River East Levee MA9 1425+46 Pipe Drainage 12 WSP 3981 City of Sacramento3009 Sacramento River East Levee MA9 1432+00 Parallel Pipe Irrigation Not Needed Not Needed4070 Sacramento River East Levee MA9 1459+86 Pipe Water 1.5 GI 14022 Mabel Wittpen4071 Sacramento River East Levee MA9 1459+86 Conduit Electrical 1 GI 14022 Mabel Wittpen4005 Sacramento River East Levee MA9 1459+96 Pipe Discharge 2 GI 14022 Mabel Wittpen2721 Sacramento River East Levee MA9 1460+26 Conduit Electrical 6 STL 6719 SMUD2494 Sacramento River East Levee MA9 1465+19 Pipe Electrical 42 WSP 17875 SMUD/SRCSD2703 Sacramento River East Levee MA9 1483+21 Abandoned Pipe Abandoned 8 STL4008 Sacramento River East Levee MA9 1486+06 Abandoned Pipe Abandoned 8 STL2706 Sacramento River East Levee MA9 1495+60 Conduit Electrical 4 PVC 17678 Donald A Murphy4009 Sacramento River East Levee MA9 1497+71 Abandoned Pipe Abandoned 10 Not Needed2631 Sacramento River East Levee MA9 1501+40 Conduit Electrical 2.5 PVC 12922 William B Groza2632 Sacramento River East Levee MA9 1501+42 Abandoned Pipe Abandoned 8 STL City of Sacramento4010 Sacramento River East Levee MA9 1502+12 Abandoned Pipe Abandoned 6 STL2671 Sacramento River East Levee MA9 1531+46 Pipe Drainage 30 WSP 9205 City of Sacramento2689 Sacramento River East Levee MA9 1531+98 Pipe Drainage 66 WSP 9205, 13378 City of Sacramento2688 Sacramento River East Levee MA9 1532+12 Pipe Drainage 66 WSP 9205, 13378 City of Sacramento2687 Sacramento River East Levee MA9 1532+23 Pipe Drainage 42 WSP 9205, 13378 City of Sacramento2686 Sacramento River East Levee MA9 1532+35 Pipe Drainage 66 WSP 9205, 13378 City of Sacramento3539 Sacramento River East Levee MA9 1532+44 Abandoned Pipe Abandoned 30 Not Needed 9205 City of Sacramento2685 Sacramento River East Levee MA9 1532+49 Pipe Drainage 66 WSP 9205, 13378 City of Sacramento2684 Sacramento River East Levee MA9 1532+60 Pipe Drainage 42 WSP 9205, 13378 City of Sacramento2683 Sacramento River East Levee MA9 1532+75 Pipe Drainage 66 WSP 9205, 13378 City of Sacramento2682 Sacramento River East Levee MA9 1532+84 Pipe Drainage 66 WSP 9205, 13378 City of Sacramento2487 Sacramento River East Levee MA9 1533+95 Abandoned Pipe Abandoned 8 Not Needed 16103 L & P Land Development Inc, The Spink Corp4043 Sacramento River East Levee MA9 1549+53 Pipe Conduit 3 Galvanized STL 10565 City of Sacramento4051 4052 Sacramento River East Levee MA9 1549+64 Abandoned Pipe Abandoned 30 WSP 5972 Arden Sanitation District4052 4051 Sacramento River East Levee MA9 1549+69 Abandoned Pipe Abandoned 30 WSP 5972 Arden Sanitation District4439 Sacramento River East Levee MA9 1552+09 Pipe Abandoned 3 STL 10565 City of Sacramento4442 Sacramento River East Levee MA9 1569+73 Valve Water Valve2515 Sacramento River East Levee MA9 1576+23 Abandoned Pipe Abandoned 12 STL 15431 U/Private/Spink Corporation2668 Sacramento River East Levee MA9 1613+07 Abandoned Pipe Abandoned Not Needed STL City of Sacramento2667 Sacramento River East Levee MA9 1635+15 Abandoned Pipe Abandoned 10 STL4020 Sacramento River East Levee MA9 1645+77 Abandoned Pipe Discharge 10 WSP 1553 Edward Franklin2836 Sacramento River East Levee MA9 1646+81 Control Structure Outfall Not Needed Not Needed2473 Sacramento River East Levee MA9 1663+53 Pipe Intake 36 WSP 18061 Freeport Water Authority2508 Sacramento River East Levee MA9 1663+78 Pipe Intake 36 WSP 18061 Freeport Water Authority2469 Sacramento River East Levee MA9 1664+04 Pipe Intake 36 WSP 18061 Freeport Water Authority2502 Sacramento River East Levee MA9 1664+30 Pipe Intake 36 WSP 18061 Freeport Water Authority2489 Sacramento River East Levee MA9 1664+58 Pipe Intake 36 WSP 18061 Freeport Water Authority2527 Sacramento River East Levee MA9 1664+85 Pipe Intake 36 WSP 18061 Freeport Water Authority2486 Sacramento River East Levee MA9 1665+17 Pipe Intake 36 WSP 18061 Freeport Water Authority2485 Sacramento River East Levee MA9 1665+49 Pipe Intake 36 WSP 18061 Freeport Water Authority2646 Sacramento River East Levee MA9 1668+60 Gravity Pipe Gravity Drainage 42 WSP 2365 City of Sacramento3187 Sacramento River East Levee MA9 1668+66 Gravity Pipe Gravity Drainage 42 WSP 2365 City of Sacramento4471 Sacramento River East Levee MA9 1668+66 Valve Vault City of Sacramento3186 Sacramento River East Levee MA9 1668+72 Gravity Pipe Gravity Drainage 42 WSP 2365 City of Sacramento

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American South Levee System (ASLS) - Penetrations
SAFCA ID Assoc. ID Levee Unit Station Category Subcategory Size (In) Material Permit Num Owner 2480 Sacramento River East Levee MA9 1668+81 Pipe Drainage 42 WSP 15728 City of Sacramento2509 Sacramento River East Levee MA9 1668+87 Pipe Drainage 42 WSP 15728 City of Sacramento2638 Sacramento River East Levee MA9 1669+40 Pipe Drainage 24 WSP 14226 City of Sacramento4472 Sacramento River East Levee MA9 1669+43 Valve Vault City of Sacramento4473 Sacramento River East Levee MA9 1669+44 Valve Vault City of Sacramento2639 Sacramento River East Levee MA9 1669+45 Pipe Drainage 24 WSP 14226 City of Sacramento4474 Sacramento River East Levee MA9 1669+46 Valve Manhole 30 City of Sacramento2640 Sacramento River East Levee MA9 1669+50 Pipe Drainage 24 WSP 14226 City of Sacramento4023 Sacramento River East Levee MA9 1677+58 Conduit Telephone 4 PVC 4068 Delta Telephone Co.4024 Sacramento River East Levee MA9 1677+60 Conduit Telephone 6 GI 6352 Verizon3188 Sacramento River East Levee MA9 1678+17 Pipe Drainage 42 WSP 2390 City of Sacramento3189 Sacramento River East Levee MA9 1678+25 Pipe Drainage 42 WSP 2390 City of Sacramento4476 Sacramento River East Levee MA9 1678+25 Valve Vault City of Sacramento4477 Sacramento River East Levee MA9 1678+29 Control Structure Outfall Not Needed Not Needed3190 Sacramento River East Levee MA9 1678+33 Pipe Drainage 42 WSP 2390 City of Sacramento4055 Sacramento River East Levee MA9 1678+41 Pipe Sewer 30 WSP 2390 City of Sacramento2479 2541 Sacramento River East Levee MA9 1688+16 Pipe Gas 20 WSP 16312 SMUD3864 Sacramento River East Levee MA9 1688+94 Pipe Sewer 42 WSP 17682 SRCSD3865 Sacramento River East Levee MA9 1689+11 Pipe Sewer 42 WSP 17682 SRCSD2567 Sacramento River East Levee MA9 1710+77 Abandoned Pipe Abandoned Not Needed PVC3531 Sacramento River East Levee MA9 1710+84 Pipe Domestic 2 STL 18144 Landowner3529 Sacramento River East Levee MA9 1710+85 Pipe Domestic 2 STL 18144 Landowner3527 Sacramento River East Levee MA9 1710+88 Pipe Domestic 2 STL 18144 Landowner3530 Sacramento River East Levee MA9 1710+88 Pipe Domestic 2 STL 18144 Landowner3528 Sacramento River East Levee MA9 1710+91 Pipe Domestic 2 STL 18144 Landowner4527 Sacramento River East Levee MA9 1713+60 Pipe Intake 10 WSP O&M Manual Landowner4489 2559? Sacramento River East Levee MA9 1718+56 Pipe Water 2 PVC3514 Sacramento River East Levee MA9 1720+94 Pipe Water 1.5 PVC 1804 W.D. Cofer3515 Sacramento River East Levee MA9 1720+96 Pipe Water 1.25 STL 1804 W.D. Cofer3533 Sacramento River East Levee MA9 1720+98 Pipe Water 1.5 GI 1804 W.D. Cofer3516 Sacramento River East Levee MA9 1721+02 Conduit Electrical Not Needed STL 1804 W.D. Cofer3517 Sacramento River East Levee MA9 1721+05 Conduit Telephone Not Needed STL 5385 Verizon3518 Sacramento River East Levee MA9 1721+60 Pipe Water 4 STL 18043519 Sacramento River East Levee MA9 1721+65 Conduit Unknown Not Needed STL 18043520 Sacramento River East Levee MA9 1722+20 Pipe Gas 1.5 WSP 1804 W.D. Cofer3535 Sacramento River East Levee MA9 1722+24 Pipe Diesel 1.5 GI 1804 W.D. Cofer3534 Sacramento River East Levee MA9 1722+25 Pipe Gas 1.5 GI 1804 W.D. Cofer3536 Sacramento River East Levee MA9 1722+31 Conduit Electrical Not Needed Not Needed 1804 W.D. Cofer3521 Sacramento River East Levee MA9 1722+35 Pipe Gas 1.5 WSP 1804 W.D. Cofer2548 Sacramento River East Levee MA9 1722+45 Pipe Sewer 4 GS 1804 W.D. Cofer4526 Sacramento River East Levee MA9 1732+76 Pipe Intake 14 WSP 1449 A.J. Sweeney2583 Sacramento River East Levee MA9 1732+78 Pipe Utility 8 STL 15815 SRCSD2593 Sacramento River East Levee MA9 1735+41 Pipe Sewer 120 RCP 9739 SRCSD2594 Sacramento River East Levee MA9 1735+52 Conduit Electrical 4 STL 9739 SRCSD3197 Sacramento River East Levee MA9 1735+87 Abandoned Pipe Abandoned 36 WSP 3337 SRCSD3191 Sacramento River East Levee MA9 1742+61 Pipe Intake 10 WSP 1180 SRCSD3532 Sacramento River East Levee MA9 1742+73 Conduit Electrical 3 STL 1180 SMUD2610 Sacramento River East Levee MA9 1756+76 Pipe Intake 12 WSP 1061 SASD

Page 6 of 6 ends

EXHIBIT 3C. Table Summary of Closure Structures, Retaining Walls, and Floodwalls
American South Levee System (ASLS) - Floodwalls, Retaining Walls, and Closure Structures Floodwallls
SAFCA ID Permit No. Levee Unit Station Category Owner/Applicant 185 American River South Levee AR04 1140+50 Floodwall ARFCD284 Sacramento River East Levee SACD 1023+20 Floodwall City of Sacramento 286 Sacramento River East Levee SACD 1041+80 Floodwall City of Sacramento 287 Sacramento River East Levee SACD 1043+65 Floodwall City of Sacramento 124 Sacramento River East Levee SACD 1061+08 Floodwall City of Sacramento123 Sacramento River East Levee SACD 1062+30 Floodwall City of Sacramento281 Sacramento River East Levee MA9 1766+00 Floodwall MA9 1131 Sacramento River East Levee MA9 1770+54 Floodwall MA9 Retaining Walls
SAFCA ID Permit No. Levee Unit Station Category Location Owner/Applicant 1091 American River South Levee AR04 1205+19 Retaining Wall 971 American River South Levee AR04 1217+43 Retaining Wall959 American River South Levee AR04 1305+34 Retaining Wall174 American River South Levee AR04 Retaining Wall176 American River South Levee AR04 Retaining Wall177 American River South Levee AR04 Retaining Wall181 American River South Levee AR04 Retaining Wall919 American River South Levee AR04 Retaining Wall920 American River South Levee AR04 Retaining Wall921 American River South Levee AR04 Retaining Wall922 American River South Levee AR04 Retaining Wall923 American River South Levee AR04 Retaining Wall924 American River South Levee AR04 Retaining Wall925 American River South Levee AR04 Retaining Wall926 American River South Levee AR04 Retaining Wall927 American River South Levee AR04 Retaining Wall928 American River South Levee AR04 Retaining Wall930 American River South Levee AR04 Retaining Wall931 American River South Levee AR04 Retaining Wall932 American River South Levee AR04 Retaining Wall933 American River South Levee AR04 Retaining Wall934 American River South Levee AR04 Retaining Wall935 American River South Levee AR04 Retaining Wall936 American River South Levee AR04 Retaining Wall937 American River South Levee AR04 Retaining Wall938 American River South Levee AR04 Retaining Wall939 American River South Levee AR04 Retaining Wall940 American River South Levee AR04 Retaining Wall941 American River South Levee AR04 Retaining Wall942 American River South Levee AR04 Retaining Wall943 American River South Levee AR04 Retaining Wall Riverwalk Reach Downstream of Tower Brdige
Riverwalk Floodwall
Bell Marine Sutter Landing
Cliff Marina retaining wall at stoplogs
Location
Bike trail 150-foot retaining wall, upstream of Railyards Blvd Old Sacramento Floodwall, upstream of I Street pedestrian access
Old Sacramento Floodwall, Tower Bridge to I Street pedestrian access
Cliff Marina retaining wall at stoplogs
2336 Rogue River Dr2424 Rogue River Dr
8909 Twin Falls Dr
89 Waterglen Cir
81 Grand Rio Cir
66 Sandburg Dr.
86 Sandburg Dr58 Sandburg Dr58 Sandburg Dr44 Sandburg Dr84 Sandburg Dr

Page 1 of 5 ends

American South Levee System (ASLS) - Floodwalls, Retaining Walls, and Closure Structures SAFCA ID Permit No. Levee Unit Station Category Location Owner/Applicant 944 American River South Levee AR04 Retaining Wall945 American River South Levee AR04 Retaining Wall946 American River South Levee AR04 Retaining Wall947 American River South Levee AR04 Retaining Wall948 American River South Levee AR04 Retaining Wall949 American River South Levee AR04 Retaining Wall950 American River South Levee AR04 Retaining Wall951 American River South Levee AR04 Retaining Wall952 American River South Levee AR04 Retaining Wall953 American River South Levee AR04 Retaining Wall954 American River South Levee AR04 Retaining Wall955 American River South Levee AR04 Retaining Wall956 American River South Levee AR04 Retaining Wall957 American River South Levee AR04 Retaining Wall958 American River South Levee AR04 Retaining Wall960 American River South Levee AR04 Retaining Wall961 American River South Levee AR04 Retaining Wall962 American River South Levee AR04 Retaining Wall963 American River South Levee AR04 Retaining Wall964 American River South Levee AR04 Retaining Wall965 American River South Levee AR04 Retaining Wall966 American River South Levee AR04 Retaining Wall967 American River South Levee AR04 Retaining Wall968 American River South Levee AR04 Retaining Wall969 American River South Levee AR04 Retaining Wall970 American River South Levee AR04 Retaining Wall972 American River South Levee AR04 Retaining Wall973 American River South Levee AR04 Retaining Wall974 American River South Levee AR04 Retaining Wall975 American River South Levee AR04 Retaining Wall976 American River South Levee AR04 Retaining Wall977 American River South Levee AR04 Retaining Wall978 American River South Levee AR04 Retaining Wall979 American River South Levee AR04 Retaining Wall980 American River South Levee AR04 Retaining Wall982 American River South Levee AR04 Retaining Wall 1001 American River South Levee AR04 Retaining Wall
458 American River South Levee AR04 Retaining Wall459 American River South Levee AR04 Retaining Wall 1044 American River South Levee AR04 Retaining Wall1063 American River South Levee AR04 Retaining Wall1086 American River South Levee AR04 Retaining Wall1087 American River South Levee AR04 Retaining Wall1088 American River South Levee AR04 Retaining Wall1090 American River South Levee AR04 Retaining Wall 90 Sandburg Dr90 Sandburg Dr
130 Sandburg Dr130 Sandburg Dr
5315 Sandburg Dr5315 Sandburg Dr
100 Sandburg Dr120 Sandburg Dr120 Sandburg Dr
3827 Moddison Ave4201 Moddison Ave3819 Moddison Ave3823 Moddison Ave I-5
800 N 10th St800 N 10th St
<Null><Null>
4721 Breuner Ave
<Null><Null><Null><Null>

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American South Levee System (ASLS) - Floodwalls, Retaining Walls, and Closure Structures SAFCA ID Permit No. Levee Unit Station Category Location Owner/Applicant 983 Sacramento River East Levee AR05 Retaining Wall
1008 Sacramento River East Levee SACD 1089+58 Retaining Wall1006 Sacramento River East Levee SACD Retaining Wall 411 Sacramento River East Levee MA9 1263+52 Retaining Wall413 Sacramento River East Levee MA9 1266+78 Retaining Wall429 Sacramento River East Levee MA9 1305+25 Retaining Wall992 Sacramento River East Levee MA9 1307+36 Retaining Wall989 Sacramento River East Levee MA9 1364+05 Retaining Wall438 Sacramento River East Levee MA9 1449+37 Retaining Wall997 Sacramento River East Levee MA9 1451+47 Retaining Wall998 Sacramento River East Levee MA9 1453+68 Retaining Wall990 Sacramento River East Levee MA9 1532+78 Retaining Wall272 Sacramento River East Levee MA9 1718+49 Retaining Wall986 Sacramento River East Levee MA9 1718+49 Retaining Wall987 Sacramento River East Levee MA9 1720+48 Retaining Wall271 Sacramento River East Levee MA9 Retaining Wall273 Sacramento River East Levee MA9 Retaining Wall276 Sacramento River East Levee MA9 Retaining Wall277 Sacramento River East Levee MA9 Retaining Wall984 Sacramento River East Levee MA9 Retaining Wall985 Sacramento River East Levee MA9 Retaining Wall988 Sacramento River East Levee MA9 Retaining Wall991 Sacramento River East Levee MA9 Retaining Wall993 Sacramento River East Levee MA9 Retaining Wall994 Sacramento River East Levee MA9 Retaining Wall995 Sacramento River East Levee MA9 Retaining Wall996 Sacramento River East Levee MA9 Retaining Wall999 Sacramento River East Levee MA9 Retaining Wall 1002 Sacramento River East Levee MA9 Retaining Wall1003 Sacramento River East Levee MA9 Retaining Wall1004 Sacramento River East Levee MA9 Retaining Wall1005 Sacramento River East Levee MA9 Retaining Wall1010 Sacramento River East Levee MA9 Retaining Wall 402 Sacramento River East Levee MA9 Retaining Wall403 Sacramento River East Levee MA9 Retaining Wall404 Sacramento River East Levee MA9 Retaining Wall405 Sacramento River East Levee MA9 Retaining Wall406 Sacramento River East Levee MA9 Retaining Wall407 Sacramento River East Levee MA9 Retaining Wall408 Sacramento River East Levee MA9 Retaining Wall409 Sacramento River East Levee MA9 Retaining Wall410 Sacramento River East Levee MA9 Retaining Wall412 Sacramento River East Levee MA9 Retaining Wall414 Sacramento River East Levee MA9 Retaining Wall415 Sacramento River East Levee MA9 Retaining Wall Jibboom St
937 Piedmont Drive925 Piedmont Drive
5704 Surf Way
654 Riverlake Way
693 / 697 Clipper Way
Jibboom St
2000 Front St
8248 Freeport Blvd
Freeport Blvd
8070 Freeport Blvd
7656 Pocket Road7656 Pocket Road
8150 Freeport Blvd
6810 Arabella Way
6830 / 6840 Arabella Way
6860 Arabella Way
639 Brickyard Drive
8248 Freeport Blvd8248 Freeport Blvd
6770 Arabella Way6870 Arabella Way
943 Piedmont Drive949 Piedmont Drive967 Piedmont Drive
920 Stern Circle
8248 Freeport Blvd
701 Clipper Way
639 Brickyard Drive
678 Riverlake Way688 Riverlake Way696 Riverlake Way
Captains Table RoadCaptains Table RoadCaptains Table RoadCaptains Table Road 931 Piedmont Drive905 Piedmont Drive
Captains Table Road
7656 Pocket Road
Captains Table RoadCaptains Table RoadCaptains Table RoadCaptains Table Road 949 Piedmont Drive

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American South Levee System (ASLS) - Floodwalls, Retaining Walls, and Closure Structures SAFCA ID Permit No. Levee Unit Station Category Location Owner/Applicant 416 Sacramento River East Levee MA9 Retaining Wall417 Sacramento River East Levee MA9 Retaining Wall418 Sacramento River East Levee MA9 Retaining Wall419 Sacramento River East Levee MA9 Retaining Wall420 Sacramento River East Levee MA9 Retaining Wall421 Sacramento River East Levee MA9 Retaining Wall422 Sacramento River East Levee MA9 Retaining Wall423 Sacramento River East Levee MA9 Retaining Wall424 Sacramento River East Levee MA9 Retaining Wall425 Sacramento River East Levee MA9 Retaining Wall426 Sacramento River East Levee MA9 Retaining Wall427 Sacramento River East Levee MA9 Retaining Wall428 Sacramento River East Levee MA9 Retaining Wall430 Sacramento River East Levee MA9 Retaining Wall431 Sacramento River East Levee MA9 Retaining Wall432 Sacramento River East Levee MA9 Retaining Wall433 Sacramento River East Levee MA9 Retaining Wall434 Sacramento River East Levee MA9 Retaining Wall437 Sacramento River East Levee MA9 Retaining Wall439 Sacramento River East Levee MA9 Retaining Wall440 Sacramento River East Levee MA9 Retaining Wall441 Sacramento River East Levee MA9 Retaining Wall442 Sacramento River East Levee MA9 Retaining Wall443 Sacramento River East Levee MA9 Retaining Wall444 Sacramento River East Levee MA9 Retaining Wall445 Sacramento River East Levee MA9 Retaining Wall455 Sacramento River East Levee MA9 Retaining Wall456 Sacramento River East Levee MA9 Retaining Wall457 Sacramento River East Levee MA9 Retaining Wall 1111 Sacramento River East Levee MA9 Retaining Wall1124 Sacramento River East Levee MA9 Retaining Wall 5890 Riverside Blvd5890 Riverside Blvd5890 Riverside Blvd5890 Riverside Blvd5890 Riverside Blvd5890 Riverside Blvd5890 Riverside Blvd5890 Riverside Blvd5890 Riverside Blvd5890 Riverside Blvd 697 Clipper Way
Railroad
8248 Freeport Blvd8054 Freeport Blvd
14 Garcia Court
6820 Arabella Way6498 Surfside Way
692 Riverlake Way674 Riverlake Way658 Riverlake Way
5704 Surf Way5704 Surf Way5704 Surf Way
828 Skipper Circle
14 Garcia Court14 Garcia Court
5890 Riverside Blvd

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American South Levee System (ASLS) - Floodwalls, Retaining Walls, and Closure Structures Closure Structures
SACFA ID Permit No. Levee Unit Station Category Subcategory Owner Location 2162 1587 American River South Levee AR04 1202+99 Closure Structure Positive Closure Vault Caltrans4515 3596 American River South Levee AR04 1496+50 Closure Structure Positive Closure Vault Sacramento County4506 American River South Levee AR04 1551+00 Closure Structure Positive Closure Vault Mayhew Drain south of ARSL4507 American River South Levee AR04 1551+00 Closure Structure Positive Closure Vault Mayhew Drain south of ARSL4508 American River South Levee AR04 1551+00 Closure Structure Positive Closure Vault Mayhew Drain south of ARSL4509 American River South Levee AR04 1551+00 Closure Structure Positive Closure Vault Mayhew Drain south of ARSL4217 American River South Levee AR04 1551+74 Closure Structure Valve County of Sacramento3225 5569 Sacramento River EastLevee AR05 1019+14 Closure Structure Positive Closure Vault Southern Pacific Pipelines, Inc.4372 Sacramento River EastLevee SACD 1027+77 Closure Structure Valve City of Sacramento3340 Sacramento River EastLevee SACD 1043+57 Closure Structure Pedestrian City of Sacramento Old Sac Floodwall3341 Sacramento River EastLevee SACD 1047+04 Closure Structure Pedestrian City of Sacramento Old Sac Floodwall3342 Sacramento River EastLevee SACD 1051+80 Closure Structure Pedestrian City of Sacramento Old Sac Floodwall3343 Sacramento River EastLevee SACD 1052+14 Closure Structure Pedestrian City of Sacramento Old Sac Floodwall3344 Sacramento River EastLevee SACD 1053+92 Closure Structure Pedestrian City of Sacramento Old Sac Floodwall3345 Sacramento River EastLevee SACD 1056+30 Closure Structure Pedestrian City of Sacramento Old Sac Floodwall4517 5695 Sacramento River EastLevee SACD 1066+01 Closure Structure Valve Caltrans4518 5687 Sacramento River EastLevee SACD 1069+00 Closure Structure Valve Caltrans4519 5687 Sacramento River EastLevee SACD 1069+08 Closure Structure Valve Caltrans4520 5687 Sacramento River EastLevee SACD 1069+16 Closure Structure Valve Caltrans 691 Sacramento River EastLevee SACD 1096+56 Closure Structure Positive Closure Vault SRCSD 4521 2043 Sacramento River EastLevee SACD 1174+07 Closure Structure <Null> City of Sacramento4389 Sacramento River EastLevee MA9 1256+72 Closure Structure Valve City of Sacramento2855 5304 Sacramento River EastLevee MA9 1311+42 Closure Structure Positive Closure Vault City of Sacramento2770 1636 Sacramento River EastLevee MA9 1328+30 Closure Structure Positive Closure Vault City of Sacramento4438 Sacramento River EastLevee MA9 1552+08 Closure Structure Vault City of Sacramento3512 Sacramento River EastLevee MA9 1770+55 Closure Structure Stop Log Maintenance Area 9 12x12 plates every 8 ft near
Cliff's Marina at Morrison Creek
and Sac River

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APPENDIX A. Penetration At Risk Engineering Evaluation
Technical Memorandum
Mead & Hunt | 180 Promenade Circle, Suite 240, Sacramento, CA 95834 | 916-971-3961 | meadhunt.com Technical Memorandum
To: Thomas Engler, MBK Engineers
From: Stephen Sullivan, Civil Engineer of Record
Reviewed by: Jeffrey Kashiwada, Senior Project Engineer Date: March 21, 2025
Subject: Penetration At-Risk Engineering Evaluations, American River South Levee System (ASLS)
SAFCA Due Diligence Review for Urban Levee Design Criteria Section 7.13 This Technical Memorandum (TM) is part of the Sacramento Area Flood Control Agency’s (SAFCA) due diligence review for compliance with the California Department of Water Resources (DWR) Urban Levee Design Criteria (ULDC) for the ASLS. This TM pertains to Section 7.13 – Penetrations.

This TM describes the engineering evaluations completed for each of the penetrations that were determined to require a full engineering evaluation after the screening process carried out during the due diligence effort. Any penetrations requiring further investigation or exception to ULDC section 7.13 are discussed in a separate TM describing the compliance work plan. Both this TM and the Penetration Exception Work Plan TM are incorporated into Mead & Hunt’s ULDC Due Diligence Report as Appendices.

ULDC Section 7.13 criteria states:

Civil engineer needs to assess existing penetrations and render an opinion as to their impact on the reliable performance of the levee/floodwall for the full range of loading up to the hydraulic top of levee (HTOL). Due to the limitations of analytical tools for assessing the impacts of penetrations, the civil engineer needs to exercise sound engineering judgment in rendering this opinion.

Penetrations with a potential to be a high hazard need to have a full engineering evaluation, to demonstrate that the hazard is acceptable, or be removed or modified.

The specific criteria used are outlined in our previous certification reviews in 2015. As part of the current due diligence effort, Mead & Hunt re-screened penetrations for engineering evaluations and condition assessment factors. The specific factors that were considered in the engineering evaluations were: below design water surface elevation (DWSE); joint integrity; structural factors (depth, material, and diameter); age; CVFPB permit status; and verification that pipe condition inspections were conducted within the last Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

Page 2 ends

five (5) years. All evaluations were performed in accordance with ULDC section 7.13.

Primary guidance for the engineering evaluations was provided by EM 1110-2-2902, 31 December 2020, Conduits, Pipes, and Culverts Associated with Dams and Levee Systems (US Army Corps of Engineers, 2020), and CVFPB standards.

2.1 Penetrations Below DWSE
Penetrations below the design water surface elevation present an increased risk of seepage, slope stability issues, and structural integrity of the levee. A primary Potential Failure Mode (PFM) for pipes penetrating levee embankments below the DWSE is the increased risk of Backwards Erosion Piping (BEP) along the pipe wall interface with the surrounding soil. Another consideration is the increased risk of Concentrated Leak Erosion (CLE) PFM due to a pipe integrity breach creating a seepage path into the pipe/conduit or erosion from pressurized pipe leakage, causing significant erosion of the embankment.

While the majority of the penetrations flagged were installed in accordance with permit conditions that placed the invert evaluation above the applicable design water surface elevation at the time of installation, the assessment is based on current DWSE profiles. Some penetrations were permitted to be installed below the applicable DWSE, with appropriate installation details to limit the risk to the line of flood protection.

The screening of the ASLS penetrations identified a total of six (6) penetrations1installed with inverts below the DWSE that required a full engineering evaluation. Attachment 1 includes a summary of the applicable factors of the installation, a summary of the evaluation, and findings. Attachment 2 shows the locations of these penetrations. All penetrations were found not to create a significant risk to the levee's reliable performance or have been added to the Penetration Exception Work Plan TM.

2.2 Penetrations with Leakage Risk Due to Joint Type
Based upon our review, only three (3) penetrations use a joint style that is at risk of leakage, absent of deterioration. At the County of Sacramento Pump Station D-06 – Mayhew Pump Station, 3-30” welded steel discharge pipes were partially removed and replaced by USACE American River Watershed Project Raising Existing Levee Near Mayhem Drain (Design File No. 1-04-509), during the 2008 reconstruction.

The welded steel pipes (WSP) were removed and replaced to facilitate the slurry wall construction. Notes indicate that “Removed W.S.P. shall be reinstalled using Dresser couplers after the slurry wall is placed.” Coupling details do not indicate restraints and joints are within the levee embankment from the levee crown to the waterside toe. Mechanical couplers are subject to leakage if movement occurs. Attachment 2 shows the location of this penetration.

WSP joints within levee embankments are required to be joined with complete joint penetration (CJP) butt welds by CVFPB standards or, alternatively, full welded butt strap connections. The mechanical joint 1 This assessment does not include pipes installed at grade with flap gates and positive closure slide gates, which comply with applicable standards.

Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

Page 3 ends

placement within the levee embankment induces a potential risk of CLE. The pipes are partially encased in CLSM, as shown in Backfill Around 3-30” WSP Pump Drains detail on drawing C501, which resists CLE. However, the CLSM is shown as extending only to top of pipe, not completely encasing the pipe, resulting in some residual risk.

Based on the review of this potential failure mode, these three (3) pipes present some risk to levee integrity and will need to be addressed by a work plan as outlined in the Penetration Exception Work Plan TM.

2.3 Penetrations Flagged for Structural Factors
Penetrations flagged for structural factors were subject to a full engineering evaluation where screening indicated that the loading was above the typical loading conditions established for conduits within the ASLS, using conservative soil unit weights, depth of saturation, and equipment loading. Buoyancy forces were evaluated for shallow, large-diameter penetrations. The methodology is described further in Mead & Hunt’s 2015 Certification Report (Mead & Hunt, 2015). Structural loading calculations were conducted to bracket the screening assessment. Additionally, the penetrations flagged during initial screening were further reviewed for site-specific loading as part of the screening effort.

As a result of this screening assessment and analysis, no penetrations were identified for further evaluation.

2.4 Penetrations Flagged Due to Age
The age of all penetrations was compared to the service life limits as established in Mead & Hunt’s 2015 Certification Report, which includes a detailed discussion of the basis for evaluation. Forty-five (45) penetrations were flagged for age check review and were evaluated further, which is discussed below.

These penetrations are included as exceptions in the Penetration Exceptions Work Plan TM. Attachment 3 summarizes the location and ownership data for these pipes.

The City of Sacramento, Department of Utilities, Water Division, has a rigorous inspection program and has found that the watermains within the project area show no signs of degradation. Water conditions (relatively neutral pH and non-abrasive flow) and lining methods for steel piping used at levee crossings have been found by the City to provide a superior level of corrosion control. While soil resistivity is variable, City watermains were found to have appropriate coatings for the conditions. Electrical potential testing with a close interval survey is completed by the City for water transmission mains on a three (3) year cycle, with two (2) cycles completed to date with no adverse findings. The exposed portions of piping attached to bridges are subject to close visual inspection and concurrently conducted with minimal degradation of exposed coatings found. As a result, the City water transmission mains were found to have significant remaining useful life and are not flagged as requiring further age checks. Although having the similar pipe material, construction and lining, the water distribution mains are not included in the City’s electrical potential testing program, and therefore these water distribution mains are included in the work plan for further age-induced checks.

Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

Page 4 ends

Steel pipes with active cathodic protection systems were found to have remaining useful life and are not flagged as requiring further evaluation. Abandoned and deactivated pipelines are included in the work plan for follow-up, as cathodic protection systems can be deactivated. PG&E gas mains and Kinder Morgan fuel lines have cathodic protection systems by regulation, and the owners further perform leakage surveys.

Typical coated WSP design life was established as 50 years for purposes of the screening assessment.

However, the service life can be greatly extended by the use of appropriate coatings and cathodic protection. The corrugated metal pipe (CMP) service life was also established as 50 years for screening purposes. No galvanized iron pipes were identified within the applicable reaches. No ductile (cast) iron pipes were flagged for further evaluation based on age.

As described in Mead & Hunt’s 2015 certification report, the service life of WSP and CMPs can be greatly extended with the use of proper coatings and linings that are typically required for ASLS-permitted pipes.

The pipe interiors for drainage pipes have been or will be inspected by the City. The water pipelines, water transmission mains, and gas mains are tested by owners using electrical conductivity methods. The active natural gas mains have cathodic protection systems and are subject to routine close-interval leakage surveys. A work plan for the utility owners to verify the conditions of the flagged aging pipes and to develop plans for replacement as needed is described in our Penetration Exception Work Plan TM.

The age check review also identified the following five (5) pipes requiring more detailed inspections and remediation plans due to prior investigations that revealed defects:
• 30” WSP, SAFCA ID 3246, Sta 1069+03, City Sump 52 Discharge Pipe, Riverwalk at O Street, 58 years old
• 30” WSP, SAFCA ID 245, Sta 1069+10, City Sump 52 Discharge Pipe, Riverwalk at O Street, 58 years old
• 30” WSP, SAFCA ID 166, Sta 1066+05, Caltrans Discharge Pipe, Riverwalk between O and M Streets. (CVFPB ENFORCEMENT CASE No. 2022-156232), 58 years old • 18” WSP, SAFCA ID 4354, Sta 1099+16, Abandoned Sewer Pipe, Downstream side of westbound Hwy 160 bridge, 73 years old3
• 66” WSP, SAFCA ID 1843, Sta 1320+65, City Sump 101 Discharge Pipe, Upstream of H Street bridge, 58 years old

2.5 Penetrations with Permits Not Found
Based upon the information provided to Mead & Hunt for our review, the following eight (8) penetrations, owned and operated by the Sacramento County Department of Water Resources, were identified as having no permits:
2 Based upon communication with the CVFPB remediation of the flaw identified through inspections is scheduled for repair by Caltrans in the summer of 2025. 3 Pipe invert above design TOL, but remains as an abandoned pipe.

Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

Page 5 ends

• Mayhew Drain Closure Structure, SAFCA ID’s 4502, 4503, 4504, 4505, Quad 120”x96” reinforced concrete box with positive closure gates and outfall flap gates. USACE Lower American River, Mayhew Drain Closure Structure, File No. AM-04-514
• Sacramento County Pump Station D-06, Mayhew Pump Station, SAFCA ID’s 3855, 3854, 3853, 3852, Three 30” WSP pump discharge pipes, 60” RCP gravity Discharge Pipe. (Originally part of the application for permit 3596, along with three (3) other stations, but removed from the final permit.)
The work plan for further review and updates to permitting is included in the Penetration Exception Work Plan TM.

2.6 Penetration Inspections
All levee pipe penetrations require inspection/testing at a maximum interval of five (5) years. SAFCA, the American River Flood Control District (ARFCD), and Mead & Hunt have been coordinating with the pipe penetration owners to complete these inspections. Most are in progress or planned for inspection. This ULDC requirement does not require additional engineering evaluations; however, the inspections must be completed, or a plan must be in place to complete this work. The work plan for the inspection exceptions is included in our Penetration Exception Work Plan TM.

Mead & Hunt’s initial screening in the ASLS identified penetrations that required full engineering evaluations based on the assessment factors described in this TM for DWSE, joint flexibility, structural integrity, age, CVFPB permit, and up-to-date inspection/testing data. Our conclusions regarding each assessment factor are as follows:
• Below DWSE: Six (6) penetrations identified as passing through the levee embankment below DWSE were further evaluated as described in Attachment 1, and findings of no significant risk were made.
• Joint Flexibility: Three (3) penetrations were flagged for further review based on a nonstandard joint type. The full engineering evaluation determined the joint failure presents some potential risk to the levee stability or reliability due to its specific position within the levee embankment and the incomplete encasement. Further data review and evaluation is recommended.
• Structural Factors: No penetrations were flagged for full engineering evaluation. • Age (Useful Life): Five (5) penetrations required more detailed evaluation and potential remediation as prior investigations revealed defects. Additionally, existing inspection data must be gathered to document the inspection and review of up to forty-five (45) penetrations that have exceeded typical useful life based on pipe materials. The Penetration Exception Work Plan TM describes the steps required in order to bring these penetrations into compliance with ULDC criteria.

Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

Page 6 ends

• CVFPB Permit: Permits were not found for eight (8) penetrations in the ASLS. The Penetration Exception Work Plan TM describes the steps required in order to bring these penetrations into compliance with CVFPB and ULDC criteria.

Attachment 1. Further Evaluation for Penetrations Flagged as Below DWSE
Reach AR04 American River South Levee
SAFCA ID’s 3853, 3854, 3855, Station Upstream of Station 1551+00 (Mayhew Drain North Bank Levee) • Owner/Permit: City of Sacramento - No permit found – upstream of original levee • Description: County of Sacramento Pump Station D-06 – Mayhew Pump Station 3-30” welded steel discharge pipes partially removed and replaced by USACE American River Watershed Project Raising Existing Levee Near Mayhem Drain (Design File No. 1-04-509). 2008 reconstruction. Pipes were not raised.
• Evaluation: Pipe is approximately 0.7-feet below design water surface elevation (DWSE). Flap gate at the outfall and the site is readily accessible for flood fight. Backward Erosion Piping (BEP) and Concentrated Leak Erosion (CLE) Probable Failure Modes (PFM) risk is insignificant due to low potential driving head and USACE recent reconstruction of levee to modern standards. If flap gates fail, backflow would enter sump, and the pumps are automated to turn ON with water level rise reversing flow.
• Finding: Not a significant risk.

SAFCA ID’s 1868 & 3358, Station 1360+50
• Owner/Permit: Sacramento Regional County Sanitation District, Permit 17671 • Description: Dual 60” Concrete Cylinder Pipe Force Mains, terminating in Valve Vault on the landside. Controlled Density Fill (CDF) used for backfilling of pipes through levee. • Evaluation: Pipe is approximately 8-feet below design water surface elevation (DWSE).

Terminating in a valve vault with a top elevation above the adjacent levee, and with an isolation valve at the outlet. BEP Probable Failure Mode (PFM) risk is insignificant due to over-widened levee (>80’) and CDF backfill that will prevent the risk of developing a preferential seepage pathway. Risk of Concentrated Leak Erosion is limited as the pipe is not open to waterway and robust piping system with welded joints within the concrete cylinder provides a reliable vessel. • Finding: Not a significant risk.

SAFCA ID 1843, Station 1320+65
• Owner/Permit: City of Sacramento, Permit 5685
• Description: City Sump 101 7/16” wall, asphalt coated and wrapped with asbestos-saturated felt 66” WSP through levee with 12-gauge coated steel cutoff wall. breaker. Immediately upstream of H Street Bridge. Pipe partially encased in jet grout cutoff wall during USACE Phase 2 Remaining Sites R7 and L7, H Street Bridge Crossing, Design File 1-04-0602 in 2013. • Evaluation: Pipe is approximately 0.6-feet below design water surface elevation (DWSE). Flap gate at the outfall and the site is readily accessible for flood fight. BEP Probable Failure Mode (PFM) risk is insignificant due to low potential driving head, steel cutoff wall around pipe at crown, and jet grout encasing pipe to 4.5 feet above DWSE. If flap gates fail backflow would enter sump, and the pumps are automated to turn ON with water level rise reversing flow. • Finding: Moderate risk.

Sacramento River East Levee
• No penetrations flagged as below design water surface elevation Attachment 2. ASLS Penetrations Below DWSE
Note: Sheets without exceptions are not included. Page 1 of 3 Note: Sheets without exceptions are not included. Page 2 of 3 Note: Sheets without exceptions are not included. Page 3 of 3 Attachment 3. ASLS Penetrations Flagged Due to Age Table American River South Levee System (ASLS) - Age Check
SAFCA ID Levee Unit Station Category Subcategory Size (In) Material Permit Num Install Yr Owner 1039 American River South Levee AR04 1203+02 Gravity Pipe Gravity Drainage 24 CMP 1665 1952 Caltrans 4324 American River South Levee AR04 1203+43 Pipe Drainage 12 WSP 1587 1951 Caltrans 2223 American River South Levee AR04 1242+05 Pipe Drainage 24 WSP 1680 1952 City of Sacramento 1907 American River South Levee AR04 1242+10 Pipe Drainage 24 WSP 1680 1952 City of Sacramento 1815 American River South Levee AR04 1242+16 Pipe Drainage 24 WSP 1680 1952 City of Sacramento 2224 American River South Levee AR04 1242+23 Pipe Drainage 24 WSP 1680 1952 City of Sacramento 1866 American River South Levee AR04 1320+38 Pipe Water 14 WSP 5152 1965 City of Sacramento 3119 American River South Levee AR04 1347+12 Pipe Drainage 14 WSP 1669 1952 California State University, Sacramento 3120 American River South Levee AR04 1347+15 Pipe Drainage 20 WSP 1669 1952 California State University, Sacramento 3121 American River South Levee AR04 1347+19 Pipe Drainage 20 WSP 1669, 7062 1952 California State University, Sacramento 2277 American River South Levee AR04 1386+89 Pipe Drainage 30 WSP 3596-A 1961 City of Sacramento 1908 American River South Levee AR04 1386+96 Pipe Drainage 30 WSP 3596-A 1961 City of Sacramento 1823 American River South Levee AR04 1387+05 Pipe Drainage 30 WSP 3596-A 1961 City of Sacramento 3133 American River South Levee AR04 1439+69 Pipe Drainage 36 WSP 3596 1961 City of Sacramento 3132 American River South Levee AR04 1439+79 Pipe Drainage 36 WSP 3596, 3596-A 1961 City of Sacramento 3131 American River South Levee AR04 1439+87 Pipe Drainage 36 WSP 3596 1961 City of Sacramento 2025 American River South Levee AR04 1496+38 Pipe Drainage 42 WSP 3596 1962 Sacramento County 3136 American River South Levee AR04 1496+48 Pipe Drainage 42 WSP 3596 1962 Sacramento County 3137 American River South Levee AR04 1496+56 Pipe Drainage 42 WSP 3596 1962 Sacramento County 3855 Mayhew Drain AR04 1594+27 Pipe Drainage 30 WSP 1960 Sacramento County 3854 Mayhew Drain AR04 1594+34 Pipe Drainage 30 WSP 1960 Sacramento County 3853 Mayhew Drain AR04 1594+41 Pipe Drainage 30 WSP 1960 Sacramento County 4064 Sacramento River East Levee SACD 1094+47 Pipe Gas 12 WSP 3672 1961 PG&E 236 Sacramento River East Levee SACD 1106+32 Pipe Gas 16 WSP 2371 1956 PG&E 280 Sacramento River East Levee SACD 1106+43 Pipe Gas 8 WSP 544 1931 PG&E 4387 Sacramento River East Levee SACD 1144+22 Pipe Petroleum Pipeline 8 WSP 4914 1965 Chevron Pipe Line Company 669 Sacramento River East Levee SACD 1174+07 Gravity Pipe Gravity Intake 24 WSP 2043 1955 City of Sacramento 4059 Sacramento River East Levee SACD 1189+84 Pipe Sewer 84 STL 773 1939 City of Sacramento 2751 Sacramento River East Levee MA9 1360+25 Pipe Drainage 24 WSP 3569 1961 City of Sacramento 2752 Sacramento River East Levee MA9 1360+29 Pipe Drainage 24 WSP 3569 1961 City of Sacramento 2753 Sacramento River East Levee MA9 1360+33 Pipe Drainage 24 WSP 3569 1961 City of Sacramento 2754 Sacramento River East Levee MA9 1360+37 Pipe Drainage 24 WSP 3569 1961 City of Sacramento 3026 Sacramento River East Levee MA9 1425+37 Pipe Drainage 24 WSP 3981 1962 City of Sacramento 3025 Sacramento River East Levee MA9 1425+39 Pipe Drainage 24 WSP 3981 1962 City of Sacramento 3024 Sacramento River East Levee MA9 1425+46 Pipe Drainage 12 WSP 3981 1962 City of Sacramento 2646 Sacramento River East Levee MA9 1668+60 Gravity Pipe Gravity Drainage 42 WSP 2365 1956 City of Sacramento 3187 Sacramento River East Levee MA9 1668+66 Gravity Pipe Gravity Drainage 42 WSP 2365 1956 City of Sacramento 3186 Sacramento River East Levee MA9 1668+72 Gravity Pipe Gravity Drainage 42 WSP 2365 1956 City of Sacramento 3188 Sacramento River East Levee MA9 1678+17 Pipe Drainage 42 WSP 2390 1956 City of Sacramento 3189 Sacramento River East Levee MA9 1678+25 Pipe Drainage 42 WSP 2390 1956 City of Sacramento 3190 Sacramento River East Levee MA9 1678+33 Pipe Drainage 42 WSP 2390 1956 City of Sacramento 4527 Sacramento River East Levee MA9 1713+60 Pipe Intake 10 WSP O&M Manual 1905 Landowner 4526 Sacramento River East Levee MA9 1732+76 Pipe Intake 14 WSP 1449 1949 A.J. Sweeney 3191 Sacramento River East Levee MA9 1742+61 Pipe Intake 10 WSP 1180 1947 SRCSD 2610 Sacramento River East Levee MA9 1756+76 Pipe Intake 12 WSP 1061 1945 SASD

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APPENDIX B. Penetration Exceptions Work Plan Technical
Memorandum
Mead & Hunt | 180 Promenade Circle, Suite 240, Sacramento, CA 95834 | 916-971-3961 | meadhunt.com Technical Memorandum
To: Thomas Engler, MBK Engineers
From: Stephen Sullivan, Civil Engineer of Record
Reviewed by: Jeffrey Kashiwada, Senior Project Engineer Date: March 21, 2025
Subject: Penetration Exceptions Work Plan, American River South Levee System (ASLS) SAFCA Due Diligence Review for Urban Levee Design Criteria Section 7.13 This Technical Memorandum (TM) is part of the Sacramento Area Flood Control Agency’s (SAFCA) due diligence review for compliance with the California Department of Water Resources (DWR) Urban Levee Design Criteria (ULDC) for the ASLS. This TM pertains to Section 7.13 – Penetrations.

The purpose of this TM is to provide background, justification, and work plans for exceptions to ULDC Section 7.13 requirements for penetrations. Mead & Hunt has identified penetrations, as summarized in our Penetration At-Risk Engineering Evaluations TM, which require a work plan to resolve exceptions to ULDC criteria. This TM and the Penetration At-Risk Engineering Evaluations TM are attached as Appendices to Mead & Hunt’s ULDC Due Diligence Report for the ASLS.

ULDC Section 7.13 criteria states:

Mead & Hunt evaluated penetrations based on a compilation of requirements from the U.S. Army Corps of Engineers (USACE), Central Valley Flood Protection Board (CVFPB), ULDC, and Federal Emergency Management Agency (FEMA) which focused on four criteria – structural strength, joint flexibility, emergency closure, and condition of the penetration. The specific criteria used is outlined in our previous certification reviews in 2015. As part of the current due diligence effort, Mead & Hunt has re-screened penetrations for engineering evaluations and condition assessment factors. The specific factors that were considered in the Penetration At-Risk Engineering Evaluations TM were: below design water surface elevation (DWSE); structural factors (depth, material, and diameter); age; joint flexibility; CVFPB permit status; and inspection completion/documentation within the last five (5) years. All evaluations were conducted in accordance with ULDC Section 7.13.

Based upon our Penetration At-Risk Engineering Evaluations TM (referenced above), Mead & Hunt has developed work plans for penetrations that require an exception to ULDC Section 7.13 criteria. The categorical risk assessment reasoning for each category's exceptions and proposed work plans are discussed below in Sections 2.1.1 through 2.1.6. Section 2.2 provides a table of the penetrations, Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

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including SAFCA ID, exception, category, owner, and basic information.

2.1 Exceptions and Mitigation Plans
Mead & Hunt has screened and provided engineering evaluations for the following exception categories (Penetrations At-Risk Engineering Evaluations TM). For each exception category, there is a proposed work plan (if necessary).

2.1.1 Penetrations Below DWSE
Exception background and assessment: Our Penetration At-Risk Engineering Evaluations TM summarizes the analysis approach and the evaluation. As a result of this screening assessment and analysis, a finding of no significant impact was issued for all penetrations in this category.

Exception work plan: None required.

2.1.2 Mechanical Joint Flexibility Risk Evaluation
Exception background and assessment: Upon initial screening of the need for addressing mechanical joint risk, three (3) Sacramento County drainage pump discharge pipes at Pump Station D-06 – Mayhew Pump Station were flagged for further evaluation. Based upon drawing reviews, the mechanical couplers added during the USACE slurry wall construction activity were not fully encased in controlled low-strength material and present a risk of Concentrated Leak Erosion (CLE) within the levee embankment should the couplings displace.

Work plan: Sacramento County is to obtain and review construction documentation for the pipe installation, such as photographs, inspection reports, and pipe interior inspection/pressure testing.

Sacramento County is to review pipe CCTV inspection with emphasis on the joint displacement and reinspect as required. Assessment findings and supplements to this due diligence report will be issued within one (1) year of transmittal of the Final ULDC Engineer’s Report to the responsible land use agency (County of Sacramento). As required, details for any proposed repairs will be submitted to the Levee Maintenance Agency (LMA)1, CVFPB, and the responsible land use agency for review. The County of Sacramento will ensure such repairs will be completed within five (5) years of the Final ULDC Engineer’s Report.

Completion of the required work plan may include collection of documents, inspection, testing, construction, and reporting. This supplemental information shall be retained and used for review by the land use agency during future ULDC evaluations
1 American River Flood Control District, City of Sacramento or DWR MA-9 depending upon the reach.

Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

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2.1.3 Penetration Structural Evaluations
Exception background and assessment: Our Penetration At-Risk Engineering Evaluations TM summarizes the analysis approach. As a result of this screening assessment and analysis, a finding of no significant impact was issued for all penetrations in this category.

Work plan: None required.

2.1.4 Penetrations Exceeding Age Expectancy (Useful Life) Exception background and assessment: Based upon penetration material, anticipated useful life, and owner practices, certain penetrations required further review, as discussed in our Penetration At-Risk Engineering Evaluations TM. Attachment 1 to this TM summarizes existing data on these penetrations, and Attachment 2 maps the location.

A total of forty-five (45) penetrations have been identified that have exceeded the minimum threshold Mead & Hunt has established to screen remaining service life. Attachment 3 summarizes the location and ownership data for these pipes. It is recommended that these pipes be subject to additional inspection. Except as described herein, pipes that have been recently inspected and found to have remaining useful life are also included in the list. However, they are still flagged to identify those that require increased vigilance. The age limit established for screening of penetrations is described in our Penetration At-Risk Engineering Evaluations TM and is based on pipe material.

The age check review identified the following pipes within the City of Sacramento and ARFCD LMA areas requiring more detailed inspections and remediation plans due to prior investigations that revealed defects:
• 30” WSP, SAFCA ID 3246, Sta 1069+03, City Sump 52 Discharge Pipe, Riverwalk at O Street, 58 years old
• 30” WSP, SAFCA ID 245, Sta 1069+10, City Sump 52 Discharge Pipe, Riverwalk at O Street, 58 years old
• 30” WSP, SAFCA ID 166, Sta 1066+05, Caltrans Discharge Pipe, Riverwalk between O and M Streets. (CVFPB ENFORCEMENT CASE No. 2022-156232), 58 years old • 18” WSP, SAFCA ID 4354, Sta 1099+16, Abandoned Sewer Pipe, Downstream side of westbound Hwy 160 bridge, 73 years old3
• 66” WSP, SAFCA ID 1843, Sta 1320+65, City Sump 101 Discharge Pipe, Upstream of H Street bridge, 58 years old
Work plan: The responsible land use agency (County or City of Sacramento) will identify penetrations requiring further assessment and notify the Owners of necessary inspections and 2 Based upon communication with the CVFPB remediation of the flaw identified through inspections is scheduled for repair by Caltrans in the summer of 2025. 3 Pipe invert above design TOL, but remains as an abandoned pipe.

Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

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reporting, requesting that any existing available inspection results be provided within 60 days of the transmittal of the Final ULDC Engineer’s Report to the responsible land use agencies (County and City of Sacramento). Supplemental reporting to accompany this due diligence review will be completed by the responsible land use agency within one (1) year of the report date to document further findings and identify any additional work as needed.

The responsible LMA and/or the land use agency should continue to follow up with utility owners and require documentation of pipe conditions. The responsible land use agency will be responsible for enforcement along with the CVFPB if responses from utility owners are delayed.

Based on the findings, the utility owner may be required to develop a replacement plan, as determined necessary by the land use agency and the CVFPB.

Utilities will be required to develop an inspection plan/schedule and/or a replacement plan within one (1) year of notification. All inspections shall be completed within two (2) years of notification. Given the nature of the facilities with existing access limitations, alternative inspection methods may be required.

The five (5) pipes that have been identified as requiring detailed inspections and remediation plans, and based upon prior investigations that revealed defects, shall require remediation plans to support the supplemental reporting within one (1) year of the report date as described in the first paragraph above.

Any penetrations inspected and found to be potentially high-hazard will be prioritized by the responsible land use agency based on the level of risk and must be removed or modified and provided to the land use agency for mitigation. All mitigation efforts must be implemented within five (5) years of the ULDC Engineer’s Report finalization. The removal or modification/permitting efforts must be completed by the penetration owner or as part of a CVFPB Enforcement Action.

Non-high hazard penetrations that have exceeded their anticipated useful life should continue to be inspected every five (5) years (in compliance with ULDC Section 7.13), and additional monitoring should be provided by the penetration owner. During these additional monitoring efforts, performance issues should be reported to the appropriate land use agency, SAFCA, the LMA, and the CVFPB.

Completion of the required work plan, which may include inspection, monitoring, construction, and reporting, shall be documented and transmitted to the responsible land use agency (County or City of Sacramento) and be appended to the ULDC Engineer’s Report. This supplemental information shall be retained and used for review by the land use agency during future ULDC evaluations.

2.1.5 No Associated CVFPB Permit
Exception background and assessment: In our Penetration At-Risk Engineering Evaluations Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

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TM, we determined that the ASLS has eight (8) penetrations for which no associated CVFPB permits were found. These unpermitted penetrations are not inherently high-hazard penetrations; however, the lack of documentation and compliance with permitting standards require that specific analyses be conducted to assess each penetration’s risk. Attachment 2 to this TM maps the location of the penetrations lacking permitting documentation.

The penetrations were identified through field investigation and review of plans, but no permits were identified. These penetrations are unlikely to threaten levee integrity or reliability at a full range of loading up to the HTOL based upon a review of available information.

The eight (8) unpermitted penetrations are located on the Mayhew Drain at the confluence with the American River.
• Mayhew Drain Closure Structure, SAFCA ID’s 4502, 4503, 4504, 4505, Quad 96”x96” Reinforced concrete box with positive closure gates and outfall flap gates. USACE Lower American River, Mayhew Drain Closure Structure, File No. AM-04-514 • Sacramento County Pump Station D-06, Mayhew Pump Station, SAFCA ID’s 3855, 3854, 3853, 3852, Three 30” WSP pump discharge pipes, 60” RCP gravity Discharge Pipe. (Originally part of the application for permit 3596, along with three (3) other stations, but removed from final permit.

Work plan: Sacramento County will perform initial outreach to CVFPB for a more in-depth review of files related to these penetrations. The County will notify the responsible utility department of the need to provide appropriate documentation for utility land rights and permits. If data documenting permits (or lack of permitting) is not provided within one (1) year of transmittal of the ULDC Engineer’s Report, Sacramento County will be required to obtain permits to comply with current CVFPB standards.

Completion of the required work plan, which may include collection of documents and reporting, shall be appended to the ULDC Engineer’s Report. This supplemental information shall be retained and used for review by the land use agency during future ULDC evaluations.

2.1.6 Lack of Inspection Data
Exception background and assessment: Due to owner access issues (such as lack of access points, underwater access points, steepness of pipe limiting camera equipment mobility, small diameter pipes with no test stations, and other factors), numerous penetrations within the ASLS have not met the internal inspection requirements under ULDC 7.13.6 for pipes and culverts. The LMA and SAFCA (via Mead & Hunt) have worked with the penetration owners to identify the inspection needs and notified them of their requirements. Most of these penetrations belong to the City of Sacramento, County of Sacramento, California State University, Caltrans, the Sacramento Area Sewer District, PG&E, and Kinder Morgan. The owners of these penetrations are working through their most recent cycle (every five years) of inspections/testing or are obtaining the resources to conduct the initial inspections within the following year. Due to land Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

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use and access issues, there is an anticipated delay for some of this work. Attachment 4 to this TM is a table summarizing penetrations requiring inspection documentation as of the date of this TM.

There are no historic issues at the locations of these penetrations and, with the exception of pipes flagged for additional scrutiny due to age in Section 2.1.4 above, the pipes are within their useful service life.

Work plan: Inspection data for ASLS penetrations that has not been received at the time of the transmittal of the Final ULDC Engineer’s Report finalization shall be completed within the next three (3) years, or the land use agency will report this missing information to the CVFPB and request that the missing information be required as part of an appropriate enforcement action.

Any penetrations inspected and found to be potentially high hazard will be prioritized by the responsible land use agency based on the level of risk and must be removed or modified. All mitigation efforts must be implemented within five (5) years of the finalization of the ULDC Engineer’s Report. The removal or modification/permitting efforts must be completed by the penetration owner or as part of a CVFPB Enforcement Action.

Completion of the required work plan, which may include collection of documents and reporting, shall be transmitted to the responsible land use agency (City or County of Sacramento) shall be retained and used for review by the land use agency during future ULDC evaluations.

2.2 List of ASLS Exceptions
Below is a list of exceptions for ASLS, including the SAFCA ID, reach, exception, description, and owner.

The AGE-based exceptions are limited to penetrations that have been found to have significant signs of aging. A separate list of penetrations flagged for exceeding useful life is provided in Attachment 4.

SAFCA

ID UNIT LEVEE EXCEPTION STATION DESCRIPTION OWNER
3853 AR04
American River
South Levee Joints 1594+41 30” WSP Sacramento County
3854 AR04
American River
South Levee Joints 1594+34 30” WSP Sacramento County
3855 AR04
American River
South Levee Joints 1594+27 30” WSP Sacramento County
3246 Sac D
Sacramento
River East
Levee
Age 1069+03 30” WSP City of
Sacramento
245 Sac D
Sacramento
River East
Levee
Age 1069+10 30” WSP City of
Sacramento
166 Sac D
Sacramento
River East
Levee
Age 1066+05 30” WSP Caltrans
Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

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SAFCA

ID UNIT LEVEE EXCEPTION STATION DESCRIPTION OWNER
4354 AR04 American River
South Levee Age 1099+16 18” WSP City of Sacramento
1843 AR04 American River
South Levee
Age 1320+65 66” WSP City of
Sacramento
4502 AR07 Mayhew Drain Permit Not
Found
1555+00 96”x96” RCB Sacramento
County
4503 AR07 Mayhew Drain Permit Not
Found
1555+00 96”x96” RCB Sacramento
County
4504 AR07 Mayhew Drain Permit Not
Found
1555+00 96”x96” RCB Sacramento
County
4505 AR07 Mayhew Drain Permit Not
Found 1555+00 96”x96” RCB Sacramento County
3855 AR07 Mayhew Drain Permit Not
Found 1594+27 30” WSP Sacramento County
3854 AR07 Mayhew Drain Permit Not
Found 1594+34 30” WSP Sacramento County
3853 AR07 Mayhew Drain Permit Not
Found 1594+41 30” WSP Sacramento County
3852 AR07 Mayhew Drain Permit Not
Found 1594+48 66” RCP Sacramento County
Mead & Hunt has concluded that the work plans described in Section 2.1 provide the necessary risk management of penetrations and have determined that the reliability of performance of the ASLS is unlikely to be affected for the full range of loading up to the HTOL. However, due to aging infrastructure and the period between each due diligence review, there are limitations to the conclusions included in this TM. All conclusions are based on this specific snapshot in time, assuming that proper inspection, maintenance, repair, and replacement by utility owners and enforcement of the condition requirements of the permits by the CVFPB is completed as outlined herein and in the manner described in our Due Diligence Report. Special attention should be paid to documenting the performance and condition of penetrations that are anticipated to be at the end of their useful life.

Attachment 1. Further Evaluation for Penetrations
Flagged for Mechanical Joint Flexibility Risk Evaluation The following welded steel pump discharge piping penetrations were found to have joint couplings that are susceptible to breaching if displaced. Leakage out if the pressurized pipe or seepage into the pipe can open erosive seepage pathways within the embankment (CLE risk). The driving heads are small, and the pipes are partially encased in controlled low-strength material (CLSM), thereby minimizing the risk to levee integrity. Section 2.1.2 of this TM describes our work plan to perform detailed documentation reviews, inspections, and/or testing to further evaluate the risk.

SAFCA ID’s 3853, 3854, 3855, AR04 Station 1551+74
• Owner/Permit: County of Sacramento, No permit found, work by the USACE. • Description: Sacramento County Pump Station D-06 – Mayhew Pump Station, three-30” Welded Steel Discharge Pipes with two couplings each in waterside slope of levee embankment.
• Evaluation: Requires further review of available construction documentation, joint inspections, and pressure testing.
• Finding: Requires further construction documentation and inspections/testing as part of the work plan described in Section 2.1.2 of this TM.

Flagged for Age Check Further Evaluation
The following penetrations are beyond their typical service life and prior investigations that revealed defects. The City Sump 52 and Caltrans discharge pipes are concrete encased through the levee and have closure valves at the waterside, thereby reducing the risk of damage from pipe leakage. The abandoned sewer pipe invert elevation is near the MTOL, embedded in the concrete bridge abutment, but is open to the waterway. The City Sump 101 66” Sump WSP induces a CLE risk if the integrity of the pipe wall is breached. Section 2.1.4 of this TM describes our work plan to perform detailed inspections and testing for this aging infrastructure to reduce risk.
• 30” WSP, SAFCA ID 3246, Sta 1069+03, City Sump 52 Discharge Pipe, Riverwalk at O Street, 58 years old
• 30” WSP, SAFCA ID 245, Sta 1069+10, City Sump 52 Discharge Pipe, Riverwalk at O Street, 58 years old
• 30” WSP< SAFCA ID 166, Sta 1066+05, Caltrans Discharge Pipe, Riverwalk between O and M Streets. (CVFPB ENFORCEMENT CASE No. 2022-156234), 58 years old • 18” WSP, SAFCA ID 4354, Sta 1099+16, Abandoned Sewer Pipe, Downstream side of westbound Hwy 160 bridge, 73 years old
• 66” WSP, SAFCA ID 1843, Sta 1320+65, City Sump 101 Discharge Pipe, Upstream of H Street bridge, 58 years old
Flagged for No Associated CVFPB Permit
4 Based upon communication with the CVFPB remediation of the flaw identified through inspections is scheduled for repair by Caltrans in the summer of 2025.

The following penetrations lack documentation for CVFPB permitting. The Mayhew Drain closure structure culverts were installed by the USACE, with appropriate levee safety reviews. The USACE does not obtain permits for such work, and the permitting will be a documentation exercise. The Mayhew pump station discharge pipes were originally authorized under permit 3596, but subsequently removed for the final permit and the USACE replaced the piping through the levee during levee strengthening work. The permitting, if no further documentation, is an administrative exercise. • Mayhew Drain Closure Structure, SAFCA ID’s 4502, 4503, 4504, 4505, Quad 96”x96” Reinforced concrete box with positive closure gates and outfall flap gates. USACE Lower American River, Mayhew Drain Closure Structure, File No. AM-04-514
• Sacramento County Pump Station D-06, Mayhew Pump Station, SAFCA ID’s 3855, 3854, 3853, 3852, Three 30” WSP pump discharge pipes, 60” RCP gravity Discharge Pipe. (Originally part of the application for permit 3596, along with three (3) other stations, but removed from final permit.) Flagged for Lack of inspection Data
The ASLS Penetrations Lacking Inspection Documentation is summarized in Attachment 4 to this TM.

Attachment 2. ASLS Exceptions Exhibit
Note: Sheets without exceptions are not included. Page 1 of 4 Note: Sheets without exceptions are not included. Page 2 of 4 Note: Sheets without exceptions are not included. Page 3 of 4 Note: Sheets without exceptions are not included. Page 4 of 4 Attachment 3. ASLS Penetrations Flagged Due to Age Table American River South Levee System (ASLS) - Age Check
SAFCA ID Levee Unit Station Category Subcategory Size (In) Material Permit Num Install Yr Owner 1039 American River South Levee AR04 1203+02 Gravity Pipe Gravity Drainage 24 CMP 1665 1952 Caltrans 4324 American River South Levee AR04 1203+43 Pipe Drainage 12 WSP 1587 1951 Caltrans 2223 American River South Levee AR04 1242+05 Pipe Drainage 24 WSP 1680 1952 City of Sacramento 1907 American River South Levee AR04 1242+10 Pipe Drainage 24 WSP 1680 1952 City of Sacramento 1815 American River South Levee AR04 1242+16 Pipe Drainage 24 WSP 1680 1952 City of Sacramento 2224 American River South Levee AR04 1242+23 Pipe Drainage 24 WSP 1680 1952 City of Sacramento 1866 American River South Levee AR04 1320+38 Pipe Water 14 WSP 5152 1965 City of Sacramento 3119 American River South Levee AR04 1347+12 Pipe Drainage 14 WSP 1669 1952 California State University, Sacramento 3120 American River South Levee AR04 1347+15 Pipe Drainage 20 WSP 1669 1952 California State University, Sacramento 3121 American River South Levee AR04 1347+19 Pipe Drainage 20 WSP 1669, 7062 1952 California State University, Sacramento 2277 American River South Levee AR04 1386+89 Pipe Drainage 30 WSP 3596-A 1961 City of Sacramento 1908 American River South Levee AR04 1386+96 Pipe Drainage 30 WSP 3596-A 1961 City of Sacramento 1823 American River South Levee AR04 1387+05 Pipe Drainage 30 WSP 3596-A 1961 City of Sacramento 3133 American River South Levee AR04 1439+69 Pipe Drainage 36 WSP 3596 1961 City of Sacramento 3132 American River South Levee AR04 1439+79 Pipe Drainage 36 WSP 3596, 3596-A 1961 City of Sacramento 3131 American River South Levee AR04 1439+87 Pipe Drainage 36 WSP 3596 1961 City of Sacramento 2025 American River South Levee AR04 1496+38 Pipe Drainage 42 WSP 3596 1962 Sacramento County 3136 American River South Levee AR04 1496+48 Pipe Drainage 42 WSP 3596 1962 Sacramento County 3137 American River South Levee AR04 1496+56 Pipe Drainage 42 WSP 3596 1962 Sacramento County 3855 Mayhew Drain AR04 1594+27 Pipe Drainage 30 WSP 1960 Sacramento County 3854 Mayhew Drain AR04 1594+34 Pipe Drainage 30 WSP 1960 Sacramento County 3853 Mayhew Drain AR04 1594+41 Pipe Drainage 30 WSP 1960 Sacramento County 4064 Sacramento River East Levee SACD 1094+47 Pipe Gas 12 WSP 3672 1961 PG&E 236 Sacramento River East Levee SACD 1106+32 Pipe Gas 16 WSP 2371 1956 PG&E 280 Sacramento River East Levee SACD 1106+43 Pipe Gas 8 WSP 544 1931 PG&E 4387 Sacramento River East Levee SACD 1144+22 Pipe Petroleum Pipeline 8 WSP 4914 1965 Chevron Pipe Line Company 669 Sacramento River East Levee SACD 1174+07 Gravity Pipe Gravity Intake 24 WSP 2043 1955 City of Sacramento 4059 Sacramento River East Levee SACD 1189+84 Pipe Sewer 84 STL 773 1939 City of Sacramento 2751 Sacramento River East Levee MA9 1360+25 Pipe Drainage 24 WSP 3569 1961 City of Sacramento 2752 Sacramento River East Levee MA9 1360+29 Pipe Drainage 24 WSP 3569 1961 City of Sacramento 2753 Sacramento River East Levee MA9 1360+33 Pipe Drainage 24 WSP 3569 1961 City of Sacramento 2754 Sacramento River East Levee MA9 1360+37 Pipe Drainage 24 WSP 3569 1961 City of Sacramento 3026 Sacramento River East Levee MA9 1425+37 Pipe Drainage 24 WSP 3981 1962 City of Sacramento 3025 Sacramento River East Levee MA9 1425+39 Pipe Drainage 24 WSP 3981 1962 City of Sacramento 3024 Sacramento River East Levee MA9 1425+46 Pipe Drainage 12 WSP 3981 1962 City of Sacramento 2646 Sacramento River East Levee MA9 1668+60 Gravity Pipe Gravity Drainage 42 WSP 2365 1956 City of Sacramento 3187 Sacramento River East Levee MA9 1668+66 Gravity Pipe Gravity Drainage 42 WSP 2365 1956 City of Sacramento 3186 Sacramento River East Levee MA9 1668+72 Gravity Pipe Gravity Drainage 42 WSP 2365 1956 City of Sacramento 3188 Sacramento River East Levee MA9 1678+17 Pipe Drainage 42 WSP 2390 1956 City of Sacramento 3189 Sacramento River East Levee MA9 1678+25 Pipe Drainage 42 WSP 2390 1956 City of Sacramento 3190 Sacramento River East Levee MA9 1678+33 Pipe Drainage 42 WSP 2390 1956 City of Sacramento 4527 Sacramento River East Levee MA9 1713+60 Pipe Intake 10 WSP O&M Manual 1905 Landowner 4526 Sacramento River East Levee MA9 1732+76 Pipe Intake 14 WSP 1449 1949 A.J. Sweeney 3191 Sacramento River East Levee MA9 1742+61 Pipe Intake 10 WSP 1180 1947 SRCSD 2610 Sacramento River East Levee MA9 1756+76 Pipe Intake 12 WSP 1061 1945 SASD

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Attachment 4. ASLS Penetrations Lacking Inspection
Documentation Table
American River South Levee System (ASLS) - Inspection Needed SAFCA ID Levee Unit Station Category Subcategory Size (In) Material Permit Num Owner 3369 American River South Levee AR04 1004+61 Pipe Sewer 2 WSP 12907 BD County of Sacramento Parks 4354 American River South Levee AR04 1099+16 Pipe Sewer 18 WSP 858 SRCSD 1039 American River South Levee AR04 1203+02 Gravity Pipe Gravity Drainage 24 CMP 1665 Caltrans 4324 American River South Levee AR04 1203+43 Pipe Drainage 12 WSP 1587 Caltrans 3117 American River South Levee AR04 1347+02 Pipe Drainage 24 WSP 7062 California State University, Sacramento 1860 American River South Levee AR04 1347+05 Pipe Drainage 24 WSP 7062 California State University, Sacramento 3118 American River South Levee AR04 1347+09 Pipe Drainage 24 WSP 7062 California State University, Sacramento 3119 American River South Levee AR04 1347+12 Pipe Drainage 14 WSP 1669 California State University, Sacramento 3120 American River South Levee AR04 1347+15 Pipe Drainage 20 WSP 1669 California State University, Sacramento 3121 American River South Levee AR04 1347+19 Pipe Drainage 20 WSP 1669, 7062 California State University, Sacramento 3358 American River South Levee AR04 1360+34 Pipe Sewer 60 WSP 17671 SRCSD 1868 American River South Levee AR04 1360+41 Pipe Sewer 60 WSP 17671 SRCSD 2033 American River South Levee AR04 1468+37 Pipe Water 2 WSP 9125-A County of Sacramento Parks & Rec 3191 American River South Levee AR04 1742+61 Pipe Intake 10 WSP 1180 SRCSD 166 Sacramento River East Levee SACD 1066+03 Gravity Pipe Gravity Drainage 30 WSP 5695 Caltrans 4062 Sacramento River East Levee SACD 1073+28 Gravity Pipe Gravity Discharge 16 WSP 15189 Caltrans 173 Sacramento River East Levee SACD 1113+86 Pipe Petroleum 10 WSP 8816 Phillips Petroleum Company 4047 Sacramento River East Levee SACD 1113+86 Pipe Petroleum 10 WSP 8816 Phillips Petroleum Company 4048 Sacramento River East Levee SACD 1113+86 Pipe Petroleum 10 WSP 8816 Phillips Petroleum Company 4049 Sacramento River East Levee SACD 1113+86 Pipe Petroleum 10 WSP 8816 Phillips Petroleum Company 276 Sacramento River East Levee SACD 1115+30 Pipe Petroleum 8 WSP 4914 Standard Oil Company of CA 4387 Sacramento River East Levee SACD 1144+22 Pipe Petroleum Pipeline 8 WSP 4914 Chevron Pipe Line Company 2815 Sacramento River East Levee MA9 1244+22 Pipe Water 4 STL 17207-A Captain's Table Hotel LLC 2783 Sacramento River East Levee MA9 1321+17 Gravity Pipe Gravity Drainage 30 WSP 5183 Caltrans 4070 Sacramento River East Levee MA9 1459+86 Pipe Water 1.5 GI 14022 Mabel Wittpen 4005 Sacramento River East Levee MA9 1459+96 Pipe Discharge 2 GI 14022 Mabel Wittpen 2473 Sacramento River East Levee MA9 1663+53 Pipe Intake 36 WSP 18061 Freeport Water Authority 2508 Sacramento River East Levee MA9 1663+78 Pipe Intake 36 WSP 18061 Freeport Water Authority 2469 Sacramento River East Levee MA9 1664+04 Pipe Intake 36 WSP 18061 Freeport Water Authority 2502 Sacramento River East Levee MA9 1664+30 Pipe Intake 36 WSP 18061 Freeport Water Authority 2489 Sacramento River East Levee MA9 1664+58 Pipe Intake 36 WSP 18061 Freeport Water Authority 2527 Sacramento River East Levee MA9 1664+85 Pipe Intake 36 WSP 18061 Freeport Water Authority 2486 Sacramento River East Levee MA9 1665+17 Pipe Intake 36 WSP 18061 Freeport Water Authority 2485 Sacramento River East Levee MA9 1665+49 Pipe Intake 36 WSP 18061 Freeport Water Authority 2479 Sacramento River East Levee MA9 1688+16 Pipe Gas 20 WSP 16312 SMUD 3864 Sacramento River East Levee MA9 1688+94 Pipe Sewer 42 WSP 17682 SRCSD 3865 Sacramento River East Levee MA9 1689+11 Pipe Sewer 42 WSP 17682 SRCSD 3531 Sacramento River East Levee MA9 1710+84 Pipe Domestic 2 STL 18144 Landowner 3529 Sacramento River East Levee MA9 1710+85 Pipe Domestic 2 STL 18144 Landowner 3527 Sacramento River East Levee MA9 1710+88 Pipe Domestic 2 STL 18144 Landowner 3530 Sacramento River East Levee MA9 1710+88 Pipe Domestic 2 STL 18144 Landowner 3528 Sacramento River East Levee MA9 1710+91 Pipe Domestic 2 STL 18144 Landowner 4527 Sacramento River East Levee MA9 1713+60 Pipe Intake 10 WSP O&M Manual Landowner 3515 Sacramento River East Levee MA9 1720+96 Pipe Water 1.25 STL 1804 W.D. Cofer 3533 Sacramento River East Levee MA9 1720+98 Pipe Water 1.5 GI 1804 W.D. Cofer 3518 Sacramento River East Levee MA9 1721+60 Pipe Water 4 STL 1804 W.D. Cofer

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American River South Levee System (ASLS) - Inspection Needed 3520 Sacramento River East Levee MA9 1722+20 Pipe Gas 1.5 WSP 1804 W.D. Cofer 3535 Sacramento River East Levee MA9 1722+24 Pipe Diesel 1.5 GI 1804 W.D. Cofer 3534 Sacramento River East Levee MA9 1722+25 Pipe Gas 1.5 GI 1804 W.D. Cofer 3521 Sacramento River East Levee MA9 1722+35 Pipe Gas 1.5 WSP 1804 W.D. Cofer 2548 Sacramento River East Levee MA9 1722+45 Pipe Sewer 4 GS 1804 W.D. Cofer 4526 Sacramento River East Levee MA9 1732+76 Pipe Intake 14 WSP 1449 A.J. Sweeney 2610 Sacramento River East Levee MA9 1756+76 Pipe Intake 12 WSP 1061 SASD SAFCA ID Levee Unit Station Category Subcategory Size (In) Material Permit Num Owner

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APPENDIX C. ASLS Wind Setup and Wave Runup Analysis
Wind-Wave Analysis for
American River South and
Sacramento River East
Levee Systems
PROJECT NUMBER R1941500-120265.09
MARCH 20, 2025
FINAL
3/20/2025

PAGE INTENTIONALLY LEFT BLANK
i CONTENTS

1. Overview .........................................................................................................1

1.1 Purpose and Scope of Study.............................................................................................. 1

1.2 Study Area.......................................................................................................................... 1

1.3 Methods of Analysis ........................................................................................................... 1

1.4 Datums ............................................................................................................................... 2

2. Model Inputs....................................................................................................2

2.1 Site Data............................................................................................................................. 2

2.2 Site Selection...................................................................................................................... 2

2.3 Wind Speed Data ............................................................................................................... 4

2.4 Fetch Length and Critical Wind .......................................................................................... 6

3. Design Wind Speed Analysis...........................................................................8

3.1 Stationarity and Detrending ................................................................................................ 8

3.2 Return Period...................................................................................................................... 8

3.3 Analysis Procedure............................................................................................................. 9

3.4 Results.............................................................................................................................. 10

4. Wind Speed Adjustment and Wave Growth ..................................................11

4.1 Wind Speed Adjustment ................................................................................................... 11

4.2 Wave Growth.................................................................................................................... 12

4.3 ACES Input and Output .................................................................................................... 14

4.4 Wave Height Correction ................................................................................................... 14

4.4.1 Correction for Submerged Breakwater................................................................ 14

4.4.2 Correction for Vegetation Buffer.......................................................................... 15

5. Setup and Setdown .......................................................................................17

5.1 Wind Setup ....................................................................................................................... 17

5.2 Wave Setup and Setdown ................................................................................................ 18

6. Wave Runup..................................................................................................18

6.1 Runup for Significant Wave .............................................................................................. 18

6.2 ACES Input and Output .................................................................................................... 20

6.3 Runup for 2% Exceedance Wave .................................................................................... 20

6.4 Runup Correction ............................................................................................................. 21 ii

CONTENTS

6.4.1 Correction for Berm ............................................................................................. 21

6.4.2 Correction for Surface Roughness ...................................................................... 21

6.4.3 Correction for Angle of Wave Incidence.............................................................. 21

7. Freeboard Evaluation ....................................................................................21

7.1 Acceptance Criteria .......................................................................................................... 21

7.2 Overtopping Rate ............................................................................................................. 22

8. Results ..........................................................................................................22

9. References ....................................................................................................24

FIGURES
Figure 1. Selected Sites .................................................................................................................. 4 Figure 2. Restricted Fetch Geometry .............................................................................................. 6 Figure 3. Restricted Fetch Conventions .......................................................................................... 7 TABLES
Table 1. Summary of Parameters for the Selected Sites ................................................................ 3 Table 2. Summary of Available Wind Speed Data .......................................................................... 5 Table 3. Wind-Wave Analysis Results .......................................................................................... 23

EXHIBITS
Exhibit 1. Example Source Wind Data
Exhibit 2. Example Outlier Analysis
Exhibit 3. Design Wind Speed Analysis
Exhibit 4. Wind Speed and Direction, Four Airports
Exhibit 5. Setup and Runup Illustration
1 1.1 Purpose and Scope of Study
The Sacramento Area Flood Control Agency (SAFCA) is in the process of evaluating the levees within its jurisdictional boundaries for compliance with the State of California’s Urban Levee Design Criteria (ULDC) (DWR, 2012). This report documents the analysis of wind and wave parameters which are inputs to the ULDC compliance evaluation of the American River south levee and Sacramento River east levee. These levee reaches were previously analyzed (Mead & Hunt, 2015). The purpose of the current scope is not to repeat the previous analysis, but to confirm or update the previous assumptions to represent current conditions.

Part of the levee evaluation process is to provide an analysis that demonstrates no appreciable erosion of the embankment can be expected as a result of expected wind and wave action, as per Title 44, Chapter 1, Section 65.10(b)(3), Embankment Protection, of the Code of Federal Regulations (U.S. Government Printing Office, 2022). The purpose of this wind and wave analysis is to estimate the magnitude of the effects of wind setup and wave runup with respect to freeboard and embankment protection on the levees under evaluation.

The wind-wave analysis relies on guidance in Determination of Wave Characteristics by the Federal Emergency Management Agency (FEMA, 2019). For parameters not specifically prescribed in the FEMA literature (e.g., design return period for wind speeds), the ULDC was used for supplemental guidance.

The calculations rely on additional publications to account for specific phenomena such as wave height reduction due to vegetation buffers and submerged breakwater-like features, where applicable.

Sites that characterize the worst-case combination of factors influencing setup and runup for a given section of levee have been selected for analysis, as summarized in Table 1. Input data have been provided by MBK Engineers, including ground surface elevations and design water surface elevations (MBK, 2024). Results from the analysis are presented in Table 3.

1.2 Study Area
This study includes the following levee segments:
• American River south levee from the Mayhew Drain Closure Structure downstream to the Sacramento River.
• Sacramento River east levee from the American River downstream to the Beach Lake / Morrison Creek north levee.

1.3 Methods of Analysis
The Automated Coastal Engineering System (ACES) Version 4.03 model within the Coastal Engineering Design and Analysis System (CEDAS) software program (Veri-Tech, 2024) and Microsoft Excel were used as the primary tools for calculating wind setup and wave runup. The ACES model contains multiple calculation modules, two of which were used for this study: the ACES “Windspeed Adjustment and Wave Growth” module which predicts the height and period of waves generated over a given fetch; the ACES 2 “Wave Runup and Overtopping on Impermeable Structures” module which predicts the magnitude of wave runup on an embankment.

To account for factors not included in the ACES model formulations (such as the angle of wave incidence or the existence of grass cover on the water-side embankment slope), spreadsheet calculations were employed to adjust the ACES-predicted wave runup values. Spreadsheet calculations were also used in the statistical analysis of wind speed values to provide one of the main model inputs.

1.4 Datums
Elevations in this report are in feet and are referenced to the North American Vertical Datum of 1988 (NAVD 88). Horizontal coordinates are in feet and are referenced to the California Coordinate System, North American Datum of 1983, Zone II, unless otherwise noted. Data provided by others was verified to be referenced to these datums, unless otherwise noted.

2.1 Site Data
MBK Engineers provided site-specific data (MBK, 2024), and included the following:
• Topographic ground surface elevation data for the study area. This is the same elevation data that is in the HEC-RAS model used to obtain the design water surface elevations. • Design water surface elevation results from the combined 1D/2D HEC-RAS model. The water surface elevations were used to determine the design still water elevation for each site location.

2.2 Site Selection
Sites selected for analysis are shown in Figure 1 below. Site selection was based on maximizing the combination of fetch length and wind speed in the most critical directions, based on the levee alignment.

Optimization for the critical wind direction is based on four parameters: fetch length (direction-dependent), wind speed (direction-dependent), the angle between the fetch and wind directions, and the angle of incidence of the mean wave direction at the analysis site. Table 1 below is a summary of parameters for the sites selected for analysis, along with the fetch length (see Section 2.4 below) and wind speed (see Section 3 below) determined according to the methods described in the following sections. 3 TABLE 1. SUMMARY OF PARAMETERS FOR THE SELECTED SITES Site Northing Easting
Restricted Fetch Length (miles)Average Fetch Depth (feet)Design Observed2-min Wind Speed (mph)Associated Wind Direction (deg)Design Water Surface Elevation (feet NAVD88) 22 1,980,436 6,703,171 0.9 34.8 36.3 320 38.3
23 1,980,370 6,710,128 0.8 16.3 31.4 30 38.8
24 1,976,167 6,715,327 1.2 15.4 38.8 340 40.0
25 1,974,073 6,722,179 1.4 12.3 38.1 330 42.1
26 1,970,288 6,726,372 0.7 17.8 47.0 140 45.6
27 1,965,897 6,728,166 1.1 26.2 39.4 110 48.2
28 1,967,741 6,736,393 1.3 16.9 33.2 300 50.9
29 1,970,406 6,746,322 1.4 24.9 37.1 240 55.8
30 1,978,139 6,702,816 1.0 29.2 41.6 180 36.5
31 1,974,025 6,702,646 0.8 38.3 38.5 340 35.5
32 1,965,530 6,700,480 0.7 35.6 38.4 180 34.5
33 1,960,443 6,701,849 1.0 35.8 37.5 330 34.0
34 1,953,402 6,697,211 0.4 41.1 42.9 150 33.2
35 1,951,589 6,698,049 0.6 48.4 37.1 330 33.1
36 1,951,128 6,697,774 1.1 38.2 29.2 260 33.0
37 1,946,824 6,688,879 0.6 35.0 33.6 220 32.0
38 1,941,475 6,689,222 1.1 30.9 43.7 150 31.6
39 1,937,003 6,691,970 0.7 29.0 32.9 310 31.3
40 1,934,887 6,702,063 1.2 38.2 29.6 240 30.5
41 1,934,360 6,703,046 1.3 36.0 42.9 150 30.4
42 1,930,215 6,704,146 1.1 24.6 43.5 150 30.0
4 FIGURE 1. SELECTED SITES

2.3 Wind Speed Data
Wind speed data was downloaded from the National Centers for Environmental Information1(NCEI) for the four airports near the study area: McClellan (MCC), Mather (MHR), Sacramento Executive (SAC), and Sacramento International (SMF) Airports. An example of the downloaded data is shown in Exhibit 1.

Data were downloaded for the period of record for each airport, which varies but generally spans from 1939 to 2023. Table 2 below summarizes the dates for which wind speed data were available at each airport, the years included or excluded from the analysis, and the reason in each case for excluding data.

The wind speed data represent the fastest 2-minute-average wind speed recorded during each hour. 1 https://www.ncei.noaa.gov/access/search/data-search/local-climatological-data (Accessed August 2023) 5 Wind direction is generally reported at 10-degree directional increments. Prior to 1964, at some airports, wind speeds were only reported for 16 directions (22.5-degree increments). Because wind speeds are analyzed statistically for each direction, the misalignment of reported wind directions before 1964 makes this data incompatible with data reported at 10-degree increments. Therefore, the pre-1964 data was not used in the analysis. However, the remaining 59-year period provides a sufficient record length to support the analysis at each airport. Peak wind speed data were summarized for each wind direction for each year2. Years with incomplete data were excluded from the analysis, leaving a total number of analysis years of 46 for MCC, 48 for MHR, 59 for SAC, and 50 for SMF.

TABLE 2. SUMMARY OF AVAILABLE WIND SPEED DATA
Airport
Dates of Available
Wind Speed Data
Years of
Wind Speed
Data Used
Years of
Wind Speed
Data Not Used
Reasons for
Excluding
Data
McClellan (MCC) 11/9/1939 – 12/31/1970
1/1/1973 – 11/25/2000
12/2/2003 – 12/4/2003
5/7/2007 – 3/14/2008
11/16/2011 – 8/23/2023
1964 – 1970
1973 – 2000
2012 – 2022
1939
1940 – 1963
1971 – 1972
2001 – 2011
2023
Incomplete Record
Only 16 Directions
Incomplete Record
Incomplete Record
Incomplete Record
Mather (MHR) 9/1/1941 – 12/31/1970
1/1/1973 – 5/15/1993
9/21/2001 – 8/23/2023 1964 – 1970
1973 – 1992
2002 – 2022
1941
1942 – 1963
1971 – 1972
1993 – 2001
2023
Incomplete Record
Only 16 Directions
Incomplete Record
Incomplete Record
Incomplete Record
Sacramento
Executive (SAC)
7/1/1947 – 8/23/2023
1964 – 2022
1947
1948 – 1963
2023
Incomplete Record
Only 16 Directions
Incomplete Record
Sacramento
International (SMF)
1/1/1973 – 8/23/2023 1973 – 2022 2023 Incomplete Record Wind speed is measured at each airport by anemometer. Data obtained from the National Oceanic and Atmospheric Administration (NOAA) indicates the anemometer heights at SAC and SMF are approximately 30 feet above ground (NOAA, 2023). Anemometer heights could not be confirmed for MHR and MCC but are assumed to be similar for the purposes of this study. Height correction factors were utilized when estimating the geostrophic wind velocities within the ACES model.

Wind speed data was analyzed to ensure appropriate wind speeds were used to predict wave generation.

Estimating design wind velocities for National Flood Insurance Program (NFIP) levee system evaluations using deterministic methods should adopt a conservative approach in using the data. FEMA does not prescribe a method of analysis for the determination of design wind velocities, but rather defers to the recommendations provided by other federal agencies. The U.S. Army Corps of Engineers (USACE) provides the following guidance (USACE, 2010, p. 18):
2 Wind speeds typically peak in the fall in this area, which is why wind speeds are summarized by calendar year, not water year. 6 “…identify the maximum wind conditions that can occur for several hours along different fetches in front of the levee. Determination of the maximum wind conditions might require examination of winds that occurred during discrete storm events considered in the stage-frequency analysis or of wind conditions that occur during seasons in which extreme water levels occur.” In accordance with this guidance above, the wind speed data has been examined closely with respect to high outliers in the data which do not represent maximum wind conditions occurring for several hours.

Examples of corrected outliers and non-outliers are shown in Exhibit 2.

2.4 Fetch Length and Critical Wind
For riverine locations, wind-wave generation is impacted by the shape of the fetch. The restricted fetch methodology considers the specific geometry of the fetch, and the potential for waves developed in offwind directions to determine the maximum possible wave conditions. Because of the limiting geometry of the study area, the restricted fetch approach was used for this analysis. Restricted fetch geometry and conventions are illustrated in Figure 2 and Figure 3 below3(examples only, not the actual site). Note that water velocity and orientation with respect to wind direction are not considered when determining the design wind velocity.

FIGURE 2. RESTRICTED FETCH GEOMETRY
3 Reference: Figure I-1-2 and Figure I-1-3 of the ACES Technical Reference (USACE, 1992) Radial Fetches Site of Interest
Levee Crest Alignment Wind
7 FIGURE 3. RESTRICTED FETCH CONVENTIONS
Fetch lengths were determined for each 10-degree increment from each site (with an origin at zero degrees north) in ESRI ArcGIS Pro (ESRI, 2024) based on the design water surface elevation and ground surface elevation data. Wind speed data is reported at each 10-degree interval beginning with zero degrees north.

Large waves can be produced even if the direction of the longest fetch and the direction of the maximum wind are different, so a preliminary evaluation was performed at each site to determine the wind speed/direction that would produce the maximum wave height for a given fetch direction. The computed wave height is approximately a function of the fetch-parallel component of the wind speed and the square root of the fetch length. Given wind speeds and fetch lengths determined for each incremental 10-degree direction, the fetch lengths at 1-degree increments were interpolated and averaged over 15-degree arcs for each 1-degree direction.

Because the longest fetches for some sites may be more parallel than perpendicular to the levee alignment, and because wave runup is reduced for large angles between the wave direction and slopeperpendicular direction (see Section 6.4.3 below), an additional term is added to the fetch optimization function used by ACES. The maximum value from the following equation was computed for each wind/fetch direction combination using Microsoft Excel to estimate the critical wind velocity to be used for analysis:

𝐹ϕ

0.28(U ∗ cos ϕ)

0.44(1 − 0.002222 ∗ 𝛽) --------------------------------------------------------------------------------------(1) where:

Fϕ = interpolated averaged fetch length for a 15-degree arc (miles) φ
Wind
Waves
Fetch Length
(Typical)
10°
Site of Interest
8 U = wind speed for a given direction (mph)
Φ = off-fetch wind direction angle (-90° < Φ < +90°)
β = angle of wave incidence (degrees)
The optimal wind velocity determined by the above method was used to calculate wave growth using the restricted fetch approach in ACES. The ACES model computes interpolated fetch lengths at 1-degree increments and then averages the fetch lengths over 15-degree arcs for each 1-degree direction. Given a critical wind direction, ACES determines the direction of maximum wave development (centered on the critical 15-degree arc) by maximizing the result of the following equation (USACE, 1992):

𝐹ϕ

0.28(cos ϕ)

0.44 --------------------------------------------------------------------------------------------------------------------(2) This procedure maximizes the relevant terms in the expression for wave period (Tp).

Wind speed data were analyzed to determine suitable design wind speeds for wave growth prediction, as detailed below.

3.1 Stationarity and Detrending
Historical trends of peak annual wind speeds were investigated for stationarity using the KolmogorovSmirnov (K-S) test to compare the distributions of average (across all directions) peak annual wind speeds between the first half and last half of record years for each airport. For example, SAC had 59 complete record years from 1964 to 2022. The first 30 years and last 29 years of average peak annual wind speed values were each ranked, and stepwise cumulative distribution functions (CDF) calculated.

The maximum difference between the CDFs for any given wind speed was determined, and this value was compared to the critical K-S test value for various significance levels. If the maximum difference between the CDFs exceeds the test value, then the null hypothesis is rejected, meaning that the samples come from different populations with the corresponding significance level (i.e., there is a historical trend between the first and last half of the period of record). For the airports analyzed, the null hypothesis was rejected with a significance level of 99% for MCC and SMF, 97% for MHR, and 95% for SAC. Because trends were detected with a high significance level at each airport, the data was detrended to the year 2023 based on the linear trendline slope of the average values analyzed. This procedure was tested for both mean and median values, and the average type with the higher trendline correlation at each airport was used for detrending the data. The stationarity and detrending calculations for each airport are shown in Exhibit 3.

3.2 Return Period
Neither FEMA nor USACE prescribes a particular return period for the design wind speed to be used in a deterministic analysis of wind setup and wave runup for NFIP levee system evaluation. FEMA guidance for determining criteria for selecting design wind speeds in combination with a design still water event is vague. In the FEMA publication on this topic (FEMA, 2019), an example is discussed which includes the evaluation of wind speed data from three stations:
9 “The maximum wind speeds ranged from 61 mph … to 39 mph … with an average maximum for all three stations of approximately 47 mph … a 45-mph wind speed was selected for input to the restricted fetch calculation.”
Apart from the apparent neglect of directionality, this example gives no criteria for the selection of the final wind speed used for the calculation, which was significantly lower than the maximum value.

The ULDC produced by the California Department of Water Resources (DWR) gives specific guidance on the return period for wind speeds to be used for setup and runup computations (DWR, 2012, pp. 7–40):
“The wind speed to be used is that which has a 50 percent probability of not being exceeded in any 50-year design period. This criterion yields a design wind speed with a return period of 72.6 years, or annual probability of 0.0138.”
The design wind speeds were determined using a return-period approach as recommended by DWR’s ULDC. A frequency analysis was performed to estimate the 72.6-year wind speed for each wind direction using the statistical procedure described below.

3.3 Analysis Procedure
For each wind direction (in 10-degree increments), the 72.6-year wind speed was estimated assuming the Generalized Extreme Value (GEV) distribution, which has the following cumulative distribution function:

𝐹(𝑦) = 𝑒
−(1+𝑘𝑦)
−1⁄𝑘
--------------------------------------------------------------------------------------------------------------(3) where:

F(y) = probability of non-exceedance of y
y = reduced variate of peak annual 2-minute-duration wind speeds, U k = shape parameter (k ≠ 0 and ky > -1)
The reduced variate (y) is related to the location (μ) and scale (σ) parameters by:
𝑦 =
𝑈−𝜇
𝜎
-----------------------------------------------------------------------------------------------------------------------------(4) Plotting position for a sample is given by:

𝐹(𝑦) =
𝑚
𝑛+1
-------------------------------------------------------------------------------------------------------------------------(5) where:
m = 1 for the smallest ordered value of U and m = n for the largest ordered value of U n = number of ordered values in the sample
The reduced variate for sample values is calculated as follows:
10 𝑦 =
1−[− ln(𝐹(𝑦))]
𝑘
𝑘[− ln(𝐹(𝑦))]
𝑘
------------------------------------------------------------------------------------------------------------------(6) For each wind direction, the peak annual 2-minute-duration wind speeds (U) were ordered, and the probability of non-exceedance F(y) was calculated for each value of U using Equation 5 above. The reduced variate (y) was computed for each value of U using Equation 6 above using an assumed value for the shape parameter, k. The location (μ) and scale (σ) parameters were estimated based on a best-fit calculation of U as a function of y using Equations 7 and 8 below:
𝜎 =
𝑛(∑ 𝑦𝑈)−(∑ 𝑦)(∑ 𝑈)
𝑛(∑ 𝑦2)−(∑ 𝑦)
2 --------------------------------------------------------------------------------------------------------------(7) 𝜇 =
∑ 𝑈−𝜎(∑ 𝑦)
𝑛
----------------------------------------------------------------------------------------------------------------------(8) The coefficient of determination (R2) was calculated according to Equation 9 below for each best-fit calculation of U to assess the correlation of the assumed distribution. Initial values for the shape parameter (k) were adjusted iteratively to find the best-fit calculation resulting in the highest coefficient of determination for each wind direction. The resulting correlation was generally very good, with R2 values averaging 0.98 across all wind directions and airports.

𝑅
2 = 1 −
∑(𝑈−𝑈(𝑦))
2 ∑(𝑈−𝑈̅)
2 --------------------------------------------------------------------------------------------------------------(9) where:

𝑈̅ = mean of wind speed sample values (mph)
U(y) = wind speed predicted using line of best fit (mph) Regression equations were calculated for each wind direction of the following form:

𝑈 = 𝜎𝑦 + 𝜇 ----------------------------------------------------------------------------------------------------------------------(10) Using the best-fit calculation for each wind direction, the design wind speed was estimated by calculating the reduced variate for a 72.6-year return interval, substituting that reduced variate (y) into the linear regression equation, and solving for the predicted wind speed (U). The reduced variate in a series of peak annual values of any given return period (T) is calculated similarly to Equation 6 above:
𝑦 =
1−[− ln(1−1⁄𝑇)]
𝑘
𝑘[− ln(1−1⁄𝑇)]𝑘
--------------------------------------------------------------------------------------------------------------(11) where:

T = return period (years)

3.4 Results

72.6-year wind speeds were calculated for each wind direction from the regression equations, and the results at each airport are given in Exhibit 4. The wind speeds are illustrated as a wind rose, which shows the design 72.6-year wind speeds for each direction at 10-degree increments. For each direction, the design wind speeds were interpolated to each analysis site using an inverse-distance-weighted average.
11 Due to this spatial interpolation, some smoothing will occur, whereby the wind speeds used for analysis at each site will represent neither the highest nor lowest speeds from any given airport, but a weighted average. To quantify this smoothing effect, the K-S test was used to evaluate the statistical significance of wind speed differences (for all wind directions) due to smoothing resulting from distance-weighted averaging of airport data to the locations of the analysis sites. The result was that the null hypothesis could not be rejected at the 30% significance level. Therefore, the population distributions of average airport wind speeds are assumed to be equal to the population distributions of average analysis site wind speeds for the purposes of the analysis. These calculations are also shown in Exhibit 4.

For each selected site, wind speed adjustment and wave growth were calculated using the “Wind Speed Adjustment and Wave Growth” module as part of the CEDAS-ACES Version 4.03 software (Veri-Tech, 2024).

4.1 Wind Speed Adjustment
The wind speed observations at the anemometer locations are not directly relevant to wave height predictions at the analysis locations because of surface roughness and wind speed gradients with respect to height above ground within the immediate vicinity of the anemometer. Maximum wind speed observations listed in Table 1 must be adjusted to estimate the appropriate wind stress at a given site.

The ACES model calculates wind speed adjustments based on the following variables:
• Height of anemometer above ground and duration of observed wind • Duration of final wind
• Air-water temperature difference – neglected for the relatively short fetches in this analysis4 • Latitude of wind observation – accounts for the Coriolis effect of the Earth’s rotation on geostrophic wind patterns
• Location of wind observation – inland, over-water, shore, or geostrophic Wind speed adjustment in the ACES model is based on an idealized model of the planetary boundary layer, consisting of the constant stress region (10-60 m above water surface), the Ekman region (to 1,000 m above water surface), and the geostrophic region (more than 1,000 m above water surface). For inland wind observations, such as those collected at airports, the model initially estimates the geostrophic wind from the low-level observations, followed by solving a series of equations describing the constant stress region and the entire planetary boundary layer to determine the equilibrium neutral wind speed (Ue) at 10 m above the water surface. Next, the model adjusts for increased stability conditions for fetch lengths shorter than 16 km using a factor of 0.9Ue. Finally, the model adjusts the wind speed to account for the duration of interest for a particular fetch length. The duration of wind used for evaluation is important because the observed wind speed is adjusted by empirical factors to obtain the wind speed at the specified duration, which has a significant impact on the computed wave height. The ratio of wind speed 4 USACE, 2002, Paragraph II 2 1.i.(3)(d), p. II 2 36
12 of any duration (Ut) to the 1-hour wind speed (U3600) is described as follows in Equations 12 and 135:

For t < 3,600 sec:

𝑈𝑡 𝑈3600 = 1.277 +0.296 tanh{0.9 log10(45 𝑡 ⁄ 𝑖 ⁄ )}-----------------------------------------------------------------------(12) For 3,600 sec < t < 36,000 sec:

𝑈𝑡 𝑈3600 = 1.5334 − 0.15 log10 𝑡 ⁄ 𝑖------------------------------------------------------------------------------------------(13) First the 1-hour wind speed (U3600) is determined (ti = tobs), and then the wind speed at the specified duration (Ut) is calculated.

4.2 Wave Growth
The “Restricted” fetch options in ACES were used to calculate wave growth because, unlike coastal wave analysis, the analysis locations feature irregularly shaped fetches.

Wave growth for a given fetch is either duration-limited or fetch-limited. Duration-limited growth means that the given wind duration is not sufficiently long for the maximum wave heights to develop across the given fetch. Fetch-limited growth means that the waves are fully developed with respect to wind duration and speed, but the length of the fetch limits wave growth. For shorter durations, the maximum wave height may not be achieved along the given fetch. Conversely, longer durations will produce higher waves. The duration can easily be adjusted within ACES, so various durations were examined to determine the wind duration and corresponding speed that would produce the largest waves for a given fetch. The minimum duration required for a wave field to become fetch-limited is estimated using Equation 14 below6:
𝑡𝑓𝑒𝑡𝑐ℎ = 51.09 𝐹

0.72 𝑔0.28Û𝑎

0.44 ---------------------------------------------------------------------------------------------------------(14) where:
tfetch = minimum duration required for a wave field to become fetch-limited (sec) F = fetch (feet)
g = acceleration due to gravity (32.2 feet/sec2)
Ûa = fetch-parallel component of adjusted wind speed for restricted fetch approach (feet/sec) The estimated wave height and period for duration- and fetch-limited waves in deep water for a restricted fetch are given by the equations below (Smith, 1991):

Duration-Limited (ti < tfetch), Deep Water, Restricted Fetch Formulas:

𝐻 = 0.000103 (
Û𝑎
2 𝑔
) (
𝑔𝑡𝑖
Û𝑎
)

0.69 ........................................................................................................................(15) 5 Reference: Figure II-2-1 in the Coastal Engineering Manual (USACE, 2002) 6 Reference: Equation 28 of the ACES Technical Reference (USACE, 1992, p. 1-1-10) 13 𝑇 = 0.082 (
Û𝑎
𝑔
) (
𝑔𝑡𝑖
Û𝑎
)

0.39 ..............................................................................................................................(16) Fetch-Limited (ti ≥ tfetch), Deep Water, Restricted Fetch Formulas:

𝐻 = 0.0015 (
Û𝑎
2 𝑔
) (
𝑔𝐹
Û𝑎
2 )
1⁄2
.............................................................................................................................(17) 𝑇 = 0.3704 (
Û𝑎
𝑔
) (
𝑔𝐹
Û𝑎
2)

0.28 .............................................................................................................................(18) where:

H = wave height determined by duration- or fetch-limited expressions (feet) T = wave period determined by duration- or fetch-limited expressions (sec) ti = wind duration used in duration-limited expressions The wave height and period computed with either the duration- or fetch-limited equations are then compared to the expressions for a fully developed equilibrium spectrum to ensure that the fully developed conditions are not exceeded (USACE, 1984a):

Fully Developed, Deep Water, Restricted Fetch Formulas:

𝐻𝑓𝑑 = 0.2433 (
Û𝑒
2 𝑔
) ......................................................................................................................................(19) 𝑇𝑓𝑑 = 8.134 (
Û𝑒
𝑔
).........................................................................................................................................(20) where:

Hfd = wave height limited by fully developed spectrum criteria (feet) Tfd = wave period limited by fully developed spectrum criteria (sec) Ûe = fetch-parallel component of equilibrium neutral wind speed for restricted fetch approach (feet/sec)
Shallow water approaching the levee slope for a significant distance will act to limit wave growth by energy dissipation through wave refraction and shoaling, bottom friction, and percolation. Shallow-water conditions will prevail if the depth of water approaching the levee slope is less than one-half the deepwater wavelength (USACE, 1984b, p. 10). The deepwater wavelength is calculated as follows in Equation 21 (USACE, 1984b, p. 9):

𝐿𝑜 = 5.12(𝑇
2 ) -------------------------------------------------------------------------------------------------------------------(21) where:

Lo = Deepwater wavelength (feet)
T = Period corresponding to the frequency of the peak energy density of the wave spectrum (sec)
If a fetch is sufficiently deep, the bottom friction and percolation effects are negligible to the wave growth calculation, and the “Deep Restricted” fetch option was used. If a fetch is sufficiently shallow compared to the deepwater wavelength, bottom friction and percolation are significant in limiting wave growth, and the 14 “Shallow Restricted” fetch option was used. When the “Shallow Restricted” fetch option was used, an independent check was made to ensure that the duration-limited wave height and period were greater than or equal to those computed with the software, because ACES does not check for duration-limited conditions automatically when using the “Shallow Restricted” fetch option (USACE, 1992).

For Site 24, the solution oscillated between shallow and deep, so the “Deep Restricted” fetch option was used in ACES, but a correction was applied in the spreadsheet calculations to reduce the wave height and period to correctly reflect the duration-limited, shallow restricted fetch solution. All other sites used the “Deep Restricted” fetch option.

4.3 ACES Input and Output
Required input for the ACES “Windspeed Adjustment and Wave Growth” module is as follows:
• elevation of observed wind (30 feet standard)
• observed wind speed (mph)
• air-water temperature difference (0°F assumed)
• duration of observed wind (2 minutes for the data downloaded) • duration of final wind (varies by site, adjusted to obtain fully developed wave conditions) • latitude of wind observation (38.5 to 38.6 degrees)
• wind observation type (“Inland”)
• wind fetch option (“Deep Restricted” or “Shallow Restricted”) • wind direction (degrees, clockwise from zero degrees north) • average depth of fetch (feet)
• direction of first radial fetch (degrees, clockwise from zero degrees north) • radial fetch angle increment (degrees)
• number of fetch angles
• fetch length (miles, for each fetch angle)
Output from the ACES “Wind Speed Adjustment and Wave Growth” module is as follows:
• wind fetch length (miles)
• equilibrium neutral wind speed (mph)
• adjusted wind speed (mph)
• mean wave direction (degrees, clockwise from zero degrees north) • wave height, Hmo (feet)
• wave period, Tp (sec)

4.4 Wave Height Correction
The wave height was corrected to account for factors not included in the ACES formulas, including submerged breakwater features and vegetation buffers as described below.

4.4.1 Correction for Submerged Breakwater
Some fetches contain linear features such as road embankments, which would be inundated 15 during the design still water event and consequently would act as submerged breakwaters.

Breakwaters transmit a portion of the incoming wave energy, as a function of the still water depth over the structure and the incoming wave height (USACE, 2002, pp. II-7-22, Figure II-7-19). In the case of rubble mound breakwaters (typical for coastal breakwaters specifically constructed for this purpose), a portion of the wave energy may also be transmitted through the porous structure.

There can be a spectral shift toward higher frequencies in the transmitted wave energy, but this requires more detailed observed wave data to quantify. For this analysis, breakwaters are assumed to be impermeable, and the period of the transmitted significant wave is assumed to be equal to that of the incoming.

Submerged linear breakwater features were identified within the critical fetches for Sites 24, 25, and 26. Transmission coefficients (ratio of transmitted to incoming wave height) for these sites were 0.78, 0.98, and 0.83, respectively.

4.4.2 Correction for Vegetation Buffer
As waves pass through vegetated areas, energy is dissipated by drag (friction) and inertial (momentum) forces as moving water separates to flow around trunks and branches and converges on the other side. Assuming regular, linear (Airy theory) waves and rigid full-depth vegetation, the rate of energy dissipation can be calculated based on assumed inertia (CM) and drag (CD) hydrodynamic force coefficients. Inputs for this calculation include the fluid properties, incident wave height (Hi) and period (T ), still water depth (ds), width of vegetation buffer in direction of wave travel (W ), and average vegetation diameter (D ) and density (Nt).

The water particle horizontal speed for linear waves (time- and depth-varying) is (USACE, 1992):
|𝑢|(𝑡, 𝑧) = |
𝐻∗𝑔∗𝑇
2𝐿
∗
cosh(2𝜋(𝑧+𝑑)⁄𝐿)
cosh(2𝜋𝑑⁄𝐿)
∗ cos(2𝜋𝑡⁄𝑇)|.............................................................................(22) where:
|u | = water particle horizontal speed (feet/sec)
g = gravity constant (32.2 ft/s2)
H = wave height (feet)
d = still water depth (feet)
L = wave length (feet)
t = time (sec)
T = wave period (sec)
z = depth relative to still water level (feet)
The inertial force of the vegetation (time- and depth-varying), is (USACE, 1984a):
𝑓𝑖
(𝑡, 𝑧) = 𝐶𝑀 ∗ 𝜌 ∗ 𝑔 ∗ 𝜋 ∗
𝐷
2 4
∗ 𝐻 ∗
(𝜋 ∗cosh(2𝜋(𝑧+𝑑)⁄𝐿))
𝐿∗cosh(2𝜋𝑑⁄𝐿)
∗ sin(−2𝜋𝑡⁄𝑇) ...............................................(23) where:
fi = inertial force per foot of vegetation buffer width (lbs/foot) CM = inertia (or mass) hydrodynamic force coefficient
ρ = fluid density (1.936 slugs/ft3 at 60°F)
16 D = average vegetation diameter (feet)
The drag force of the vegetation (time- and depth-varying), is (USACE, 1984a):
𝑓𝐷(𝑡, 𝑧) =
𝐶𝐷
2 ∗ 𝜌 ∗ 𝑔 ∗ 𝐷 ∗ 𝐻
2 ∗
𝑔𝑇
2 4𝐿
2 ∗
cosh(2𝜋(𝑧+𝑑)⁄𝐿)
cosh(2𝜋𝑑⁄𝐿)
2 ∗ cos(2𝜋𝑡⁄𝑇) ∗ |cos(2𝜋𝑡⁄𝑇)|............................(24) where:
fD = drag force per foot of vegetation buffer width (lbs/foot) CD = drag hydrodynamic force coefficient
The average wave energy dissipation rate through the vegetation buffer is:
∫
𝑁𝑡𝑤
𝑇
𝑊
𝑤=0
∫ ∫ |𝑢|(𝑡, 𝑧)[𝑓𝑖
(𝑡, 𝑧)+ 𝑓𝐷(𝑡, 𝑧)] 𝑑𝑡 𝑑𝑧 𝑑𝑤 0
𝑧=−𝑑
𝑇
𝑡=0
..................................................................(25) where:

Dfetch = wave energy dissipation rate per tree (foot·lbs/sec) Nt = vegetation buffer density, trees per unit bottom surface area (ft-2) w = vegetation buffer width segment (feet)
W = total vegetation buffer width (feet)
For any sites with an applicable vegetation buffer, the inertial force, drag force, and water particle horizontal speed equations were first solved using spreadsheet calculations at 50 discrete intervals on both the time and depth axes, from t = 0 to T and from z = 0 to d. The energy dissipation rate was then determined by summing the inertial and drag forces and multiplying by the average water particle horizontal speed across each interval, summing the result for each interval along both time and depth axes, multiplying by the vegetation density and buffer width segment, and dividing by the wave period. This procedure was calculated for a single segment of vegetation buffer width equal to W / 100. The reduced wave height was determined at the end of the buffer width segment, and this became the new incident wave height for the next buffer width segment. As the wave energy is dissipated along the fetch direction through the buffer width, the average rate of energy dissipation also decreases. This procedure does not account for any shift in peak spectral wave period, which may occur because of the energy dissipation.

The assumed inertia coefficient may range from 1.5 to 2, depending on the average Reynolds number for a site. The Shore Protection Manual summarizes inertia coefficients that may be applicable for various ranges of Reynolds number, beginning at 2 for Re < 2.5 x 105 and decreasing slightly for higher values (USACE, 1984a). Sites with lower average Reynolds numbers based on predominantly smaller-stemmed vegetation (Willows) would use an inertia coefficient of 2. Sites with much larger, mature woody vegetation and corresponding higher average Reynolds numbers would use an inertia coefficient of 1.5.

The assumed drag coefficient was 0.3 for all sites. The theoretical drag coefficient for an isolated vertical cylinder may be approximately 1.2 but can vary significantly. As summarized in the Beach Lake Levee Wind-Wave Buffer Report, and the Shore Protection Manual, the drag coefficient decreases with increasing Reynolds number and Keulegan-Carpenter number KC and may be as low as 0.3 for Re = 7,000 and KC = 80 (Poindexter, Cristina et al, 2018). Where the computed 17 values of Re and KC are approximately on this order or higher, a drag coefficient of 0.3 was conservatively chosen.

Some sites in the study area may have riparian vegetation that would decrease wave heights but based on the results, it was not necessary to account for this reduction and no reduction was included in the calculations for those sites. Two sites, 41 and 42, had preliminary runup plus setup heights exceeding 3 feet, so wave height reduction due to riparian vegetation was calculated at these sites. The levee segment represented by Site 41 has relatively dense riparian vegetation, based on aerial imagery. Reference values for dense riparian vegetation calculated based on previous tree surveys in the region were applied to this site. The riparian corridor width in the direction of mean wave travel is approximately 100 feet for Site 41. The levee segment represented by Site 42 has relatively sparse riparian vegetation, based on aerial imagery.

Reference values for sparse riparian vegetation calculated based on previous tree surveys in the region were applied to this site. The riparian corridor width in the direction of mean wave travel is approximately 200 feet for Site 42. Wave height reductions of 11% and 6% were computed for Sites 41 and 42, respectively.

The setup and setdown are the positive and negative changes in mean water level due to wind shear and a train of surface waves. Setup is the portion of the water level rise above still water level near the downwind shoreline produced by wind-wave mechanics that is not directly due to the undulation of the waves. It is produced by a net volume transport resulting from wind shear and non-linear wave properties.

Wind-wave setup acts to increase the total maximum elevation of wave runup on a structure, sometimes increasing substantially. Setdown is the corresponding lowering of the water level which occurs away from the shoreline, which is an irrelevant phenomenon for the purposes of this study. Setdown could be considered for rapid drawdown stability analysis (by others, not part of this report) in some cases, but in the study area the setup values are small (0.01 to 0.13 feet), so it is not likely a critical design case.

5.1 Wind Setup
The concepts of wind setup, wind setdown, and wave runup are illustrated in Exhibit 5. Wind setup is calculated using Equation 26 below7:

𝑆 =
𝑈
2𝐹
1400𝐷
-------------------------------------------------------------------------------------------------------------------------(26) where:

S = Wind setup relative to the static water level (feet) U = Wind speed over water and at 33 feet above the water surface (mph) F = Wind fetch (miles)
7 Reference: Equation 8 from Freeboard Criteria and Guidelines for Computing Freeboard Allowances for Storage Dams by the U.S.

Department of the Interior, Bureau of Reclamation (USBR, 1981, p. 43), which is the same as Formula 15-1 from EM 1110-2-1420 Hydrologic Engineering Requirements for Reservoirs (USACE, 1997) and has been reproduced from Equation 3-1 of EM 1110-2-1414 Water Levels and Wave Heights for Coastal Engineering Design (USACE, 1989). 18 D = Average water depth along fetch line (feet)
If an enclosed water body converges to a narrower width in the downwind direction, the effects of wind setup can be magnified, but this effect is not relevant for the terrain in the study area.

If the waves approach the structure at an oblique angle, the wind setup is a function of the cosine of the angle of approach, with the remaining energy producing a longshore current. Therefore, wind setup is minimized for waves approaching a structure at a large oblique angle. For the purposes of this analysis, no adjustments were made to wind setup to account for the wave approach angle because this is not a large open or coastal water body (therefore, longshore currents would be subdued) and because it is appropriately conservative to neglect this adjustment for the small, computed values of wind setup at the study sites. Therefore, no angle of approach reduction was assumed for purposes of wind setup calculation.

The wind setup for the sites analyzed ranged from 0.01 feet (Site 35) to 0.13 feet (Site 25).

5.2 Wave Setup and Setdown
Wave setup and setdown (different than wind setup and setdown) are the changes in the mean water level caused by wave action alone. Wave setup need not be computed separately from wave runup in most cases because the empirical methods used to predict wave runup typically use measurements taken in reference to the offshore still water level and already include the effects of wave setup in the prediction of wave runup. However, when wave growth occurs in deep water and waves are refracted to shallow water at a significant distance in front of the structure, the wave setup occurs independently of the predicted runup and should therefore be accounted for separately8. No such sites were identified in this analysis. Wave setdown is irrelevant for the purposes of this study because it occurs near the point of wave breaking, away from the shoreline.

For each selected site, wave runup was calculated using a combination of CEDAS-ACES Version 4.03 and Excel spreadsheet calculations.

6.1 Runup for Significant Wave
The ACES “Wave Runup and Overtopping on Impermeable Structures” module was used to determine the runup associated with the significant wave. Important assumptions built into the ACES wave runup calculations are as follows (USACE, 1992):
• Waves are normally incident to the structure and are unbroken in the vicinity of the structure toe. • Waves are specified at the structure location.
• Structures are impermeable with simple plane slopes.
8 (USACE, 1984a), Paragraph 3.VIII.5, pp. 3-99 to 3-101 19 • Expressions for computing runup have generally been determined by empirical curve fitting procedures and, therefore, do not formally represent “best fit” curves derived by statistical procedures.
• An “irregular” wave type is assumed because “monochromatic” or “regular” wave types are not common in nature. Sea waves during storms are always irregular and short-crested (USACE, 2002, Part II, Chapter 1).
• Irregular wave conditions are characterized by significant wave height, Hs. • Runup values caused by an irregular sea will follow a Rayleigh distribution.

For structures with embankment protection (e.g., riprap, rubble), the empirical method presented by Ahrens and McCartney is used by ACES to predict the wave runup as a function of the surf-similarity parameter or Iribarren number (ξ ) (Ahrens & McCartney, Wave Period Effect on the Stability of Riprap, 1975). Riprap was noted at Sites 33 and 38 and included in the analysis.

𝑅 = 𝐻𝑖
𝛼𝜉
1+𝑏𝜉 .................................................................................................................................................(27) 𝜉 =
tan θ
√𝐻𝑖⁄𝐿𝑜
...................................................................................................................................................(28) where:

R = runup (feet)
Hi = incident wave height (feet)
α, b = empirical coefficients associated with corresponding types of armor unit θ = slope angle between structure face and horizontal (deg) Lo = deepwater wavelength (feet)
For structures with smooth slopes (e.g., grass, bare earth), the following method recommended by Ahrens and Titus was used by ACES to predict the wave runup as a function of the surf-similarity parameter using a different definition of the coefficient (C ) for three types of wave conditions (Ahrens & Titus, 1985):

𝑅 = 𝐶𝐻𝑖.....................................................................................................................................................(29) Plunging wave conditions (ξ ≤ 2):

𝐶𝑝 = 1.002𝜉 ...............................................................................................................................................(30) Transitional Wave Conditions (2 < ξ < 3.5):

𝐶𝑡 = (

3.5−𝜉

1.5 ) 𝐶𝑝 + (
𝜉−2

1.5 ) 𝐶𝑛𝑏 .........................................................................................................................(31) Nonbreaking Wave Conditions (ξ ≥ 3.5):

𝐶𝑛𝑏 = 1.087√𝜋⁄2𝜃 + 0.775Π.....................................................................................................................(32) Π =
𝐻𝑖⁄𝐿
tanh3(2𝜋𝑑𝑠⁄𝐿)
.........................................................................................................................................(33) 20 where:

Π = Goda’s nonlinearity parameter (Goda, 1983)
L = incident wavelength (feet)

6.2 ACES Input and Output
Required input for the ACES “Wave Runup and Overtopping on Impermeable Structures” module is as follows:
• wave type (“irregular”)
• slope type (“smooth” or “rough”)
• breaking criteria, k=0.78 (ratio of wave height to depth at which waves break) • incident significant wave height, Hs (feet)
• peak wave period, Tp (sec)
• cotangent of nearshore slope
• water depth at structure toe, ds (feet)
• cotangent of structure slope
• structure height above toe, hs (feet)
• surface roughness adjustment factor, γ=0.90 (grass) or 0.60 (riprap) • rough slope coefficients, a and b (0.956 and 0.398, respectively, where applicable) • angle of wave incidence, β (deg)
• onshore wind velocity, U (ft/sec)
• overtopping coefficients, α and Q*o from Figures 7-25 through 7-28 and 7-34 of the Shore Protection Manual (USACE, 1984a)
Output from the ACES “Wave Runup and Overtopping on Impermeable Structures” module is as follows:
• significant wave runup, Rs (feet)
• deepwater significant wave height, Ho (feet)
• relative height, ds/Ho
• wave steepness, Ho/gT2
• overtopping rate, Q (cfs per foot)

6.3 Runup for 2% Exceedance Wave
Title 44, Chapter 1, Section 65.10(b)(3) of the Code of Federal Regulations (U.S. Government Printing Office, 2022) requires an engineering analysis that demonstrates no appreciable erosion of the embankment can be expected during the base flood due to wave action. Embankments designed with adequate freeboard to contain the runup for the 2% exceedance wave (wave runup which is exceeded by 2% of waves on average) typically experience overtopping rates of approximately 0.001 cfs/foot for typical riverine wave growth conditions on embankments with consistent waterside and landside slopes (USACE, 2010). An overtopping rate of 0.001 cfs/foot is equivalent to 0.6 cups of water over the embankment every 5 seconds per foot of length. Even for an embankment consisting of silts or silty/fine sands with no protective covering, no damage is expected due to extremely small overtopping rates of this magnitude (USACE, 2010). Therefore, the 2% exceedance runup was used as the design basis for the embankment freeboard assessment.
21 Runup for the 2% exceedance wave was determined by multiplying the significant wave runup computed using ACES by a factor of 1.40 (USACE, 1984b, pp. 11, Table 1).

6.4 Runup Correction
The wave runup was corrected to account for factors not included in the ACES formulas, including embankment cover material and angle of wave incidence on the structure, as described below.

6.4.1 Correction for Berm
If there is a waterside berm on the embankment with an average water depth of less than 𝐻𝑠√2, then some reduction in wave runup will occur due to wave breaking over the berm. The wave runup reduction is calculated using Equations VI-5-7 through VI-5-9 of the Coastal Engineering Manual (USACE, 2002).

No sites with shallow waterside berms were identified in this study.

6.4.2 Correction for Surface Roughness
For grass-covered embankments, the 2% exceedance runup was adjusted in the spreadsheet calculations by applying an assumed factor of 0.90, which represents short grass cover, based on the surface roughness reduction factors listed in Table VI-5-3 of the Coastal Engineering Manual (USACE, 2002). Areas covered with riprap have a lower factor (0.60). Over time, the roughness of an embankment surface can increase, and a greater reduction in runup can be assumed for existing embankments without uniform, short grass cover. The reduction factor used in this study for grass-covered embankments is conservatively based on a newly constructed embankment with recently established grass cover and no significant overgrowth. Note that the coefficient used by USACE for the Natomas levee project was 0.66, Mead & Hunt, Inc. (Mead & Hunt) previously used 0.75 and 0.6 for normal and hog vegetation, respectively for the Natomas levee project (Mead & Hunt, 2008), and GEI Consultants used 0.5 for the Feather River and Bear River levees.

6.4.3 Correction for Angle of Wave Incidence
The 2% exceedance runup was adjusted to account for oblique angle of wave incidence on the structure, assuming short-crested waves, according to Figure VI-5-10 of the Coastal Engineering Manual (USACE, 2002).
𝛾𝛽 = 1− 0.0022𝛽..........................................................................................................................(34) where:
γβ = Angle of Mean Wave Incidence Adjustment Factor

7.1 Acceptance Criteria
The design still water elevation for this study is the computed 200-year water surface. The design top of levee elevation is typically a minimum of three feet above the computed 200-year water surface elevation. 22 If necessary, the design must include additional freeboard to prevent excessive wave overtopping that could result in erosion of the embankment. As described above, the 2% exceedance runup was used as the basis for freeboard evaluation. If the freeboard required to contain the design wave conditions (wind setup plus 2% exceedance wave runup) is determined to be greater than the available freeboard, then either the design top of levee must be increased to provide the required freeboard, or an overtopping rate calculation must be performed to assess the risk of embankment erosion under design wave conditions.

Additionally, the interior drainage system must be assessed to determine if satisfactory drainage in the interior of the levee is able to convey any predicted overtopping flows. Land-side levee erosion protection may also be required for higher rates of overtopping.

7.2 Overtopping Rate
If the design wave conditions (wind setup plus 2% exceedance wave runup) at a site are determined to overtop the levee, an overtopping rate calculation is performed in accordance with the guidance provided in the ACES Technical Reference, Section 5-2 (USACE, 1992). Spreadsheet calculations are used to adjust for the onshore wind speed and angle. Overtopping coefficients (α and Qo*) are estimated from Figures 7-25 through 7-28 and 7-34 of the Shore Protection Manual (USACE, 1984a). For exceedance probabilities between 0.001 and 0.999, in increments of 0.001, the wave runup, wind correction, and overtopping rate are determined. The average overtopping rate is then computed by summing the overtopping rate for each exceedance probability and dividing by the total number of probability values considered (999).

No overtopping locations were identified due to combinations of wind setup and wave runup in this study.

Wind and wave setup and runup were computed for the design water surface elevations. The wind setup plus wave runup was equal to or less than 3 feet for all but two analysis sites (41 and 42). At those sites, the available still water freeboard exceeds the combined setup plus runup height, and no significant overtopping is expected. The results of the wind and wave analysis are presented in Table 3 below. 23 TABLE 3. WIND-WAVE ANALYSIS RESULTS Site No.

Northing Easting
Restricted Fetch Length (miles)Average Fetch Depth (feet)Design Observed2-min Wind Speed (mph)Associated Wind Direction (deg)Design Water Surface Elevation (feet NAVD88)Duration of Final Wind (min) Adjusted Wind Speed (mph)Significant Wave Height at Levee (feet)Peak Spectral Wave Period (sec)Wind Setup (feet)2% Exceedance Wave Runup (feet)Setup + Runup (feet) 22 1,980,436 6,703,171 0.9 34.8 36.3 320 35.3 27 38.5 1.05 1.94 0.03 1.97 2.0 23 1,980,370 6,710,128 0.8 16.3 31.4 30 35.8 24 33.1 0.82 1.72 0.04 1.58 1.6 24 1,976,167 6,715,327 1.2 15.4 38.8 340 37.0 29 41.2 0.97 2.12 0.09 2.11 2.2 25 1,974,073 6,722,179 1.4 12.3 38.1 330 39.1 33 40.3 1.26 2.09 0.13 2.13 2.3 26 1,970,288 6,726,372 0.7 17.8 47.0 140 42.6 19 51.4 1.00 2.02 0.07 1.81 1.9 27 1,965,897 6,728,166 1.1 26.2 39.4 110 45.2 28 41.9 1.22 2.09 0.05 2.16 2.2 28 1,967,741 6,736,393 1.3 16.9 33.2 300 47.9 39 34.6 1.13 2.05 0.07 1.90 2.0 29 1,970,406 6,746,322 1.4 24.9 37.1 240 52.8 35 39.1 1.31 2.20 0.06 2.13 2.2 30 1,978,139 6,702,816 1.0 29.2 41.6 180 33.5 25 44.6 1.25 2.11 0.05 2.15 2.2 31 1,974,025 6,702,646 0.8 38.3 38.5 340 32.5 22 41.2 1.02 1.90 0.02 1.36 1.4 32 1,965,530 6,700,480 0.7 35.6 38.4 180 31.5 21 41.2 1.00 1.87 0.03 2.43 2.5 33 1,960,443 6,701,849 1.0 35.8 37.5 330 31.0 27 39.8 1.14 2.02 0.03 1.00 1.0 34 1,953,402 6,697,211 0.4 41.1 42.9 150 30.2 12 47.6 0.82 1.65 0.01 2.02 2.0 35 1,951,589 6,698,049 0.6 48.4 37.1 330 30.1 18 39.9 0.87 1.74 0.01 2.39 2.4 36 1,951,128 6,697,774 1.1 38.2 29.2 260 30.0 31 30.4 0.88 1.81 0.02 2.34 2.4 37 1,946,824 6,688,879 0.6 35.0 33.6 220 29.0 19 35.8 0.77 1.65 0.02 1.83 1.8 38 1,941,475 6,689,222 1.1 30.9 43.7 150 28.6 26 47.0 1.39 2.22 0.06 1.14 1.2 39 1,937,003 6,691,970 0.7 29.0 32.9 310 28.3 21 34.9 0.81 1.70 0.02 1.97 2.0 40 1,934,887 6,702,063 1.2 38.2 29.6 240 27.5 36 30.7 0.95 1.89 0.02 2.36 2.4 41 1,934,360 6,703,046 1.3 36.0 42.9 150 27.4 31 45.8 1.31 2.30 0.05 3.41 3.5 42 1,930,215 6,704,146 1.1 24.6 43.5 150 27.0 27 46.7 1.28 2.19 0.07 3.05 3.1 24 Ahrens, J. P., & McCartney, B. L. (1975). Wave Period Effect on the Stability of Riprap. Proceedings of Civil Engineering in the Oceans/111, American Society of Civil Engineers, pp. 1019-1034.

Ahrens, J. P., & Titus, M. F. (1985). Wave Runup Formulas for Smooth Slopes. Journal of Waterway, Port, Coastal and Ocean Engineering, American Society of Civil Engineers, Vol. 111, No. 1, pp. 128-133.

DWR. (2012, May). Urban Levee Design Criteria.

ESRI. (2024). ArcGIS Pro software. Version 3.3.0.

FEMA. (2019, February). Guidance for Flood Risk Analysis and Mapping. Determination of Wave Characteristics.

Goda, Y. (1983). A Unified Nonlinearity Parameter of Water Waves. Report of the Port and Harbour Research Institute, Vol. 22, No. 3, pp. 3-30.

MBK. (2024). Wind and Wave Analysis Inputs (Various). Updated November 6, 2024.

Mead & Hunt. (2008). Wind Setup and Wave Runup Analysis for Natomas Levee Improvement Program.

November 3, 2008.

Mead & Hunt. (2015, February). SAFCA Levee Evaluation. Wind Wave Analysis.

NOAA. (2023). ASOS Wind Tower Anemometer Heights. Microsoft Excel spreadsheet.

Poindexter, Cristina et al. (2018, January 24). Beach Lake Levee Wind-Wave Buffer Report. Office of Water Programs, California State University, Sacramento.

Smith, J. (1991). Wind-Wave Generation on Restricted Fetches. Miscellaneous Paper CERC 91 2, US Army Waterways Experiment Station, Vicksburg, MS.

U.S. Government Printing Office. (2022, October 1). 44 CFR 65.10. Emergency Management and Assistance.

USACE. (1984a). Shore Protection Manual. 4th ed.

USACE. (1984b). ETL 1110-2-305. Determining Sheltered Water Wave Characteristics. February 16, 1984.

USACE. (1989, July 7). EM 1110-2-1414. Water Levels and Wave Heights for Coastal Engineering Design.

USACE. (1992, September). Automated Coastal Engineering System (ACES) Technical Reference.

Version 1.07.

USACE. (1997, October 31). EM 1110-2-1420. Hydrologic Engineering Requirements for Reservoirs.

USACE. (2002, April 30). EM 1110-2-1100. Coastal Engineering Manual. Rev. 2008, August 1.

USACE. (2010, August 31). EC 1110-2-6067. Engineering and Design: USACE Process for the National Flood Insurance Program (NFIP) Levee System Evaluation.

USBR. (1981). ACER Technical Memorandum No. 2. Freeboard Criteria and Guidelines for Computing Freeboard Allowances for Storage Dams. Rev. 1992.

Veri-Tech, I. (2024). Coastal Engineering Design and Analysis System - Automated Coastal Engineering System (CEDAS-ACES). Version 4.03.

Exhibit 1. Example Source Wind Data
File: X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\3433112.csv 8/24/2023 "STATION","NAME","LATITUDE","LONGITUDE","ELEVATION","DATE","SOURCE","REPORT_TYPE","CALL_SIGN","QUALITY_CONTROL","WND" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T00:50:00","4","FM-15","KMCC ","V020","180,1,N,0036,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T01:50:00","4","FM-15","KMCC ","V020","170,1,N,0046,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T02:50:00","4","FM-15","KMCC ","V020","180,1,N,0062,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T03:50:00","4","FM-15","KMCC ","V020","180,1,N,0046,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T04:50:00","4","FM-15","KMCC ","V020","210,1,N,0031,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T05:50:00","4","FM-15","KMCC ","V020","140,1,N,0031,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T06:50:00","4","FM-15","KMCC ","V020","120,1,N,0031,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T07:50:00","4","FM-15","KMCC ","V020","150,1,N,0031,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T08:50:00","4","FM-15","KMCC ","V020","150,1,N,0026,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T09:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T09:50:00","4","FM-15","KMCC ","V020","140,1,N,0026,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T10:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T10:50:00","4","FM-15","KMCC ","V020","080,1,N,0021,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T11:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T11:50:00","4","FM-15","KMCC ","V020","999,9,C,0000,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T12:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T12:53:00","4","FM-15","KMCC ","V020","999,9,C,0000,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T13:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T13:50:00","4","FM-15","KMCC ","V020","320,1,N,0015,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T14:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T14:50:00","4","FM-15","KMCC ","V020","050,1,N,0015,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T15:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T15:50:00","4","FM-15","KMCC ","V020","300,1,N,0021,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T16:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T16:50:00","4","FM-15","KMCC ","V020","999,9,C,0000,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T17:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T17:50:00","4","FM-15","KMCC ","V020","300,1,N,0015,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T18:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T18:50:00","4","FM-15","KMCC ","V020","250,1,N,0015,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T19:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T19:50:00","4","FM-15","KMCC ","V020","180,1,N,0021,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T20:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T20:50:00","4","FM-15","KMCC ","V020","210,1,N,0041,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T21:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T21:50:00","4","FM-15","KMCC ","V020","230,1,N,0041,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T22:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T22:50:00","4","FM-15","KMCC ","V020","190,1,N,0051,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T23:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-01T23:50:00","4","FM-15","KMCC ","V020","210,1,N,0046,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T00:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T00:50:00","4","FM-15","KMCC ","V020","170,1,N,0021,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T01:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T01:50:00","4","FM-15","KMCC ","V020","160,1,N,0026,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T02:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T02:50:00","4","FM-15","KMCC ","V020","180,1,N,0026,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T03:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T03:50:00","4","FM-15","KMCC ","V020","130,1,N,0026,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T04:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T04:50:00","4","FM-15","KMCC ","V020","090,1,N,0031,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T05:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T05:50:00","4","FM-15","KMCC ","V020","999,9,C,0000,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T06:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T06:50:00","4","FM-15","KMCC ","V020","290,1,N,0021,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T07:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T07:50:00","4","FM-15","KMCC ","V020","340,1,N,0021,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T08:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T08:50:00","4","FM-15","KMCC ","V020","340,1,N,0015,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T09:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T09:50:00","4","FM-15","KMCC ","V020","310,1,N,0021,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T10:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T10:50:00","4","FM-15","KMCC ","V020","070,1,N,0021,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T11:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T11:50:00","4","FM-15","KMCC ","V020","350,1,N,0015,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T12:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T12:50:00","4","FM-15","KMCC ","V020","020,1,N,0026,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T13:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T13:50:00","4","FM-15","KMCC ","V020","340,1,N,0015,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T14:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T14:50:00","4","FM-15","KMCC ","V020","999,9,C,0000,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T15:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T15:50:00","4","FM-15","KMCC ","V020","999,9,C,0000,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T16:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T16:50:00","4","FM-15","KMCC ","V020","999,9,C,0000,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T17:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T17:50:00","4","FM-15","KMCC ","V020","220,1,N,0026,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T18:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T18:50:00","4","FM-15","KMCC ","V020","210,1,N,0015,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T19:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T19:50:00","4","FM-15","KMCC ","V020","090,1,N,0015,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T20:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T20:50:00","4","FM-15","KMCC ","V020","210,1,N,0015,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T21:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T21:50:00","4","FM-15","KMCC ","V020","130,1,N,0021,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T22:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T22:50:00","4","FM-15","KMCC ","V020","170,1,N,0026,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T23:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-02T23:50:00","4","FM-15","KMCC ","V020","150,1,N,0036,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-03T00:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-03T00:50:00","4","FM-15","KMCC ","V020","120,1,N,0036,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-03T01:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-03T01:50:00","4","FM-15","KMCC ","V020","140,1,N,0031,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-03T02:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-03T02:50:00","4","FM-15","KMCC ","V020","130,1,N,0031,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-03T03:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-03T03:50:00","4","FM-15","KMCC ","V020","120,1,N,0031,1" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-03T04:00:00","9","NSRDB","99999","V020","999,9,9,9999,9" "72483699999","MC CLELLAN AFLD, CA US","38.667639","-121.400611","22.86","2000-01-03T04:50:00","4","FM-15","KMCC ","V020","150,1,N,0021,1" Page: 1
Exhibit 2. Example Outlier Analysis
Example High Outlier, Station No. 72483323206
Date & Time
Observed 2-min Wind Speed (mph)
Corrected (mph)
5/7/06 0:45
6 6
5/7/06 1:45
6 6
5/7/06 2:45
8 8
5/7/06 3:45
7 7
5/7/06 4:45 52
7 5/7/06 5:45 3 35/7/06 6:45 5 55/7/06 7:50
6 6
5/7/06 8:45
6 6
Example Non-Outlier, Station No. 72483323206Date & Time Observed 2-min Wind Speed (mph)
1/10/17 20:55 231/10/17 21:45 231/10/17 22:45 141/10/17 23:45 32 1/11/17 0:45 581/11/17 1:48 261/11/17 1:52 291/11/17 2:45 291/11/17 3:45 26 0 102030405060
5/7/06 0:00 5/7/06 6:00 5/7/06 12:00
Observed 2-min Wind Speed (mph)
Date & Time
Example High Outlier, Station No. 72483323206
CorrectedObserved
0 10203040506070
1/10/17 18:00 1/11/17 0:00 1/11/17 6:00
Observed 2-min Wind Speed (mph)
Date & Time
Example Non-Outlier, Station No. 72483323206
Observed
Exhibit 3. Design Wind Speed Analysis

3.1 – Design Wind Speed Analysis for McClellan Airport (MCC)

3.2 – Design Wind Speed Analysis for Mather Airport (MHR)

3.3 – Design Wind Speed Analysis for Sacramento Executive Airport (SAC)

3.4 – Design Wind Speed Analysis for Sacramento
International Airport (SMF)

3.1 – Design Wind Speed Analysis for McClellan Airport (MCC) GEV Frequency Plots of Observed 2-min Wind Speed (mph)
y = 4.0431x + 22.164
R² = 0.9828
0 10
20 30
40 -2 0 2 4
360
y = 4.0312x + 18.249
R² = 0.9896
0 10
20 30
40 -2 0 2 4 6
10 y = 4.1878x + 16.075
R² = 0.9898
0 10
20 30
40 -2 0 2 4
20 y = 4.3506x + 13.247
R² = 0.9902
0 10
20 30
40 -5 0 5 10
30 y = 3.521x + 11.565
R² = 0.9819
0 5
10 15
20 25
30 -5 0 5
40 y = 3.2573x + 11.285
R² = 0.9869
0 5
10 15
20 25
30 -5 0 5 10
50 y = 2.7192x + 10.514
R² = 0.9677
0 5
10 15
20 25
-5 0 5
60 y = 2.0213x + 11.025
R² = 0.9752
0 5
10 15
20 25
-5 0 5
70 y = 2.3779x + 11.38
R² = 0.992
0 5
10 15
20 25
-5 0 5
80 y = 2.2461x + 11.983
R² = 0.9818
0 5
10 15
20 25
-2 0 2 4 6
90 y = 3.0216x + 13.455
R² = 0.9853
0 5
10 15
20 25
30 -2 0 2 4
100
y = 3.1735x + 16.117
R² = 0.9883
0 5
10 15
20 25
30 -2 0 2 4
110
y = 4.1062x + 18.503
R² = 0.9952
0 10
20 30
40 -5 0 5
120
y = 5.2856x + 22.924
R² = 0.9768
0 10
20 30
40 50
-2 0 2 4
130
y = 6.5132x + 29.398
R² = 0.9844
0 10
20 30
40 50
-2 0 2 4
140
y = 4.8201x + 34.155
R² = 0.9816
0 10
20 30
40 50
60 -2 0 2 4
150
y = 5.275x + 32.208
R² = 0.9899
0 10
20 30
40 50
60 -2 0 2 4
160
y = 5.5377x + 27.057
R² = 0.9794
0 10
20 30
40 50
-2 0 2 4
170
y = 2.8352x + 23.952
R² = 0.982
0 10
20 30
40 50
-5 0 5 10
180
y = 2.9654x + 22.736
R² = 0.985
0 10
20 30
40 -2 0 2 4
190
y = 3.0372x + 22.141
R² = 0.9885
0 10
20 30
40 -2 0 2 4
200
y = 2.76x + 22.283
R² = 0.9919
0 10
20 30
40 -2 0 2 4 6
210
y = 2.8776x + 22.094
R² = 0.9923
0 10
20 30
40 -2 0 2 4 6
220
y = 3.4009x + 21.219
R² = 0.9863
0 5
10 15
20 25
30 -2 0 2 4
230
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-McClellan (MCC).xlsm GEV Frequency Plots of Observed 2-min Wind Speed (mph)
y = 2.6705x + 18.27
R² = 0.9854
0 5
10 15
20 25
30 -2 0 2 4
240
y = 2.8184x + 16.751
R² = 0.9869
0 5
10 15
20 25
30 -2 0 2 4
250
y = 2.8947x + 16.665
R² = 0.976
0 5
10 15
20 25
30 -2 0 2 4
260
y = 3.2688x + 16.207
R² = 0.9884
0 10
20 30
40 -2 0 2 4 6
270
y = 2.8727x + 14.802
R² = 0.9772
0 5
10 15
20 25
30 -5 0 5
280
y = 2.5064x + 15.425
R² = 0.9835
0 10
20 30
40 -5 0 5 10
290
y = 3.1572x + 16.38
R² = 0.9865 0
5 10
15 20
25 30
-2 0 2 4
300
y = 4.1339x + 18.527
R² = 0.9789 0
10 20
30 40
-2 0 2 4
310
y = 4.4815x + 21.718
R² = 0.9753 0
10 20
30 40
-2 0 2 4
320
y = 4.2163x + 25.265
R² = 0.983 0
10 20
30 40
-2 0 2 4
330
y = 4.343x + 26.179
R² = 0.9857 0
10 20
30 40
-2 0 2 4
340
y = 2.8754x + 24.614
R² = 0.9826 0
10 20
30 40
-2 0 2 4
350
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-McClellan (MCC).xlsm Year 360 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 Mean Max Median 1940 32 0 11 0 0 11 0 10 0 13 0 19 0 0 40 0 44 0 26 0 28 0 0 28 0 24 0 16 0 38 0 0 40 0 33 0 12 44 0 1941 40 0 22 0 0 15 0 11 0 16 0 28 0 0 40 0 44 0 41 0 31 0 0 34 0 11 0 44 0 25 0 0 48 0 46 0 14 48 0 1942 40 0 11 0 0 16 0 8 0 11 0 14 0 0 36 0 38 0 34 0 19 0 0 28 0 16 0 14 0 10 0 0 38 0 36 0 10 40 0 1943 45 0 44 0 0 34 0 11 0 16 0 16 0 0 52 0 48 0 48 0 26 0 0 24 0 32 0 22 0 19 0 0 36 0 40 0 14 52 0 1944 40 0 38 0 0 25 0 19 0 14 0 25 0 0 36 0 33 0 38 0 32 0 0 41 0 19 0 15 0 23 0 0 41 0 48 0 14 48 0 1945 41 0 25 0 0 30 0 18 0 16 0 19 0 0 32 0 41 0 33 0 36 0 0 22 0 30 0 25 0 32 0 0 54 0 46 0 14 54 0 1946 45 0 28 0 0 18 0 16 0 14 0 16 0 0 34 0 40 0 32 0 25 0 0 24 0 16 0 11 0 22 0 0 54 0 45 0 12 54 0 1947 40 0 19 0 0 24 0 11 0 24 0 18 0 0 30 0 34 0 31 0 25 0 0 26 0 18 0 22 0 14 0 0 37 0 44 0 12 44 0 1948 33 0 16 0 0 24 0 10 0 11 0 18 0 0 32 0 38 0 40 0 18 0 0 18 0 15 0 18 0 19 0 0 38 0 37 0 11 40 0 1949 41 0 36 0 0 30 0 17 0 11 0 23 0 0 39 0 46 0 31 0 29 0 0 19 0 11 0 11 0 13 0 0 34 0 37 0 12 46 0 1950 33 0 18 0 0 15 0 11 0 16 0 11 0 0 25 0 44 0 32 0 30 0 0 26 0 11 0 11 0 9 0 0 28 0 34 0 10 44 0 1951 25 0 23 0 0 11 0 16 0 18 0 21 0 0 28 0 34 0 32 0 28 0 0 21 0 9 0 18 0 26 0 0 37 0 37 0 11 37 0 1952 28 0 22 0 0 25 0 11 0 11 0 18 0 0 40 0 41 0 36 0 23 0 0 18 0 16 0 16 0 28 0 0 36 0 34 0 11 41 0 1953 37 0 32 0 0 34 0 14 0 14 0 16 0 0 19 0 36 0 26 0 40 0 0 25 0 17 0 29 0 19 0 0 40 0 34 0 12 40 0 1954 26 0 16 0 0 10 0 8 0 9 0 17 0 0 23 0 32 0 34 0 23 0 0 18 0 11 0 16 0 15 0 0 36 0 28 0 9 36 0 1955 39 0 26 0 0 30 0 30 0 22 0 17 0 0 29 0 41 0 32 0 30 0 0 22 0 32 0 23 0 24 0 0 40 0 41 0 13 41 0 1956 36 0 26 0 0 16 0 14 0 14 0 22 0 0 21 0 38 0 32 0 30 0 0 23 0 18 0 14 0 16 0 0 45 0 40 0 11 45 0 1957 38 0 30 0 0 14 0 10 0 10 0 16 0 0 23 0 30 0 26 0 28 0 0 16 0 19 0 18 0 18 0 0 26 0 34 0 10 38 0 1958 22 0 21 0 0 13 0 11 0 15 0 18 0 0 30 0 40 0 30 0 25 0 0 23 0 16 0 15 0 18 0 0 22 0 23 0 10 40 0 1959 23 0 16 0 0 11 0 9 0 14 0 21 0 0 41 0 34 0 25 0 25 0 0 18 0 16 0 25 0 19 0 0 22 0 30 0 10 41 0 1960 26 0 18 0 0 10 0 10 0 11 0 14 0 0 23 0 34 0 41 0 23 0 0 21 0 22 0 22 0 17 0 0 23 0 23 0 9 41 0 1961 23 0 18 0 0 14 0 13 0 13 0 18 0 0 23 0 25 0 23 0 19 0 0 18 0 14 0 14 0 19 0 0 25 0 25 0 9 25 0 1962 21 0 16 0 0 11 0 7 0 15 0 15 0 0 32 0 39 0 34 0 22 0 0 30 0 16 0 17 0 17 0 0 23 0 23 0 9 39 0 1963 19 0 11 0 0 17 0 17 0 18 0 23 0 0 34 0 29 0 29 0 18 0 0 28 0 15 0 21 0 16 0 0 23 0 29 0 10 34 0 1964 23 18 16 19 7 16 14 9 11 11 14 15 15 21 32 39 32 37 38 23 22 21 21 21 23 11 18 19 18 18 14 14 19 28 28 25 20 39 19 1965 25 28 9 7 7 7 6 8 14 9 14 11 11 23 30 32 39 34 32 26 23 23 25 16 14 18 11 15 18 11 14 18 24 28 30 22 19 39 18 1966 23 18 10 11 9 7 6 8 8 8 9 16 15 21 24 34 29 34 23 29 23 21 18 21 18 14 16 10 15 14 17 23 24 23 23 23 18 34 18 1967 19 29 19 30 21 7 5 8 9 9 10 15 18 25 41 43 32 25 23 19 21 19 23 21 14 23 11 15 13 15 11 14 14 22 23 22 19 43 19 1968 17 18 14 8 7 10 5 5 8 7 9 14 16 21 19 30 30 22 18 15 16 18 18 23 23 15 16 17 11 14 23 21 23 23 19 22 17 30 17 1969 22 18 19 10 9 5 5 8 16 10 11 19 18 28 35 37 37 37 25 16 21 25 30 21 16 18 17 13 16 15 16 15 21 22 23 23 19 37 18 1970 23 17 16 25 7 10 11 7 13 14 7 13 18 19 24 33 34 32 25 18 18 17 21 23 18 14 13 13 11 13 18 18 25 25 25 22 18 34 18 1973 22 17 14 15 8 16 9 9 11 8 14 15 26 24 31 39 49 32 25 23 23 30 19 21 15 14 18 10 11 13 14 14 19 22 23 23 19 49 18 1974 24 23 21 14 10 7 9 9 9 9 10 16 23 21 28 34 37 37 29 28 21 24 23 21 17 18 14 11 13 13 14 14 23 23 30 32 20 37 21 1975 21 19 19 14 9 10 9 14 7 7 9 15 14 23 23 37 44 40 40 21 24 22 22 19 22 13 17 10 14 16 14 18 21 29 30 30 20 44 19 1976 23 14 14 9 14 6 6 9 8 6 9 10 13 18 25 34 25 23 19 23 21 18 28 18 16 15 14 11 11 11 18 14 18 21 25 23 16 34 15 1977 17 23 14 10 11 7 4 6 8 9 7 10 11 14 15 30 43 30 26 24 17 19 17 23 16 18 11 17 24 21 14 15 18 21 22 23 17 43 17 1978 16 16 16 14 8 10 11 11 6 9 13 14 17 23 34 39 38 37 23 18 18 23 17 18 14 14 16 14 9 14 14 15 18 26 29 23 18 39 16 1979 17 14 14 10 7 7 7 9 10 7 9 10 23 18 34 34 34 25 23 23 17 18 21 19 17 14 16 9 11 13 10 14 16 18 28 18 17 34 16 1980 23 22 15 9 14 11 7 9 9 16 9 23 21 21 32 34 34 34 23 21 28 18 22 21 15 17 22 15 9 11 15 17 23 26 34 23 20 34 21 1981 18 11 11 9 14 9 9 11 11 11 14 13 30 21 25 34 39 25 21 23 23 21 17 23 14 13 16 15 18 14 23 18 22 29 23 24 19 39 18 1982 18 13 9 11 7 7 8 9 7 16 21 15 16 23 34 34 28 25 26 21 18 25 21 18 15 17 14 25 11 13 13 17 16 21 19 21 18 34 17 1983 15 18 25 16 8 11 11 10 8 10 9 17 16 33 32 34 34 30 23 21 26 18 18 18 17 10 14 21 10 9 14 16 21 21 21 21 18 34 18 1984 18 14 13 9 6 11 7 11 8 11 16 17 14 20 34 32 28 26 21 17 16 18 16 14 14 11 14 14 20 26 11 18 16 30 29 25 17 34 16 1985 25 17 14 7 11 8 9 7 11 10 9 10 10 14 30 36 40 25 22 22 26 20 21 21 16 16 14 14 13 15 16 16 20 23 23 23 18 40 16 1986 18 14 10 6 9 9 7 9 11 13 14 21 17 18 30 44 33 30 30 21 21 23 18 18 14 15 15 11 11 14 13 13 16 18 17 20 17 44 16 1987 25 15 14 7 10 5 6 8 11 10 8 16 17 21 26 30 30 20 21 21 17 17 21 14 17 9 13 14 11 10 11 11 17 18 29 24 16 30 16 1988 23 16 18 21 16 23 18 6 9 8 11 11 14 21 23 32 25 29 22 18 18 17 21 18 14 17 16 18 11 16 14 13 15 23 29 28 18 32 18 1989 21 13 8 7 6 6 5 7 8 7 10 11 11 14 21 25 23 20 22 21 23 22 16 17 15 15 14 14 14 23 11 15 10 17 23 25 15 25 14 1990 18 15 11 15 18 18 10 9 7 10 14 13 14 15 29 34 30 18 23 18 17 18 18 17 16 16 15 17 15 15 14 17 17 20 20 18 17 34 17 1991 20 18 15 9 8 11 9 9 11 14 16 14 16 30 32 32 30 28 28 23 23 22 23 25 23 17 16 11 11 11 11 17 17 21 23 23 19 32 17 1992 16 15 14 17 13 17 8 10 14 10 16 15 18 23 32 31 33 30 22 28 19 22 25 17 15 14 16 24 16 13 11 14 19 22 21 21 19 33 17 1993 23 18 14 11 16 10 11 9 9 10 15 23 21 22 24 34 29 26 29 30 22 30 22 22 17 18 24 15 14 14 16 18 21 19 19 21 19 34 19 1994 19 15 15 11 11 9 11 9 9 10 10 13 34 33 28 31 29 24 19 22 19 18 29 18 18 13 17 19 18 14 18 18 18 23 21 22 19 34 18 1995 19 25 21 15 9 14 10 17 11 14 18 21 25 33 33 48 36 28 22 26 23 25 25 18 14 13 11 14 10 14 15 17 21 26 26 25 21 48 20 1996 19 19 22 16 11 10 10 14 8 10 15 16 21 26 31 32 32 26 25 23 25 22 28 16 17 14 17 13 14 13 14 22 21 34 21 18 19 34 19 1997 29 19 24 17 17 24 19 18 18 10 16 15 16 26 29 34 33 26 23 18 16 17 22 17 11 17 15 14 14 14 14 15 19 25 26 29 20 34 18 1998 25 15 17 15 21 11 14 13 13 18 17 18 24 36 45 32 34 24 22 18 18 21 21 19 22 17 18 15 10 10 10 14 18 26 26 29 20 45 18 1999 28 25 18 18 11 10 13 10 11 9 16 19 22 24 30 29 29 25 21 19 18 19 18 14 17 15 15 19 18 11 14 11 19 21 23 24 19 30 18 2000 30 21 17 10 8 10 10 10 11 14 9 11 17 21 17 26 33 31 29 24 25 23 25 26 22 19 14 17 9 19 16 15 19 31 33 29 20 33 19 2012 19 18 10 9 13 9 14 10 9 13 24 21 22 30 33 33 36 28 23 24 22 19 19 26 21 18 18 21 15 15 23 28 31 30 32 24 21 36 21 2013 28 14 14 26 16 15 14 15 11 10 11 13 16 16 25 30 25 21 21 26 30 28 23 20 21 18 16 18 15 18 21 30 30 32 32 28 21 32 20 2014 25 28 29 29 23 17 21 13 11 13 11 14 30 24 26 28 25 22 20 21 20 20 20 18 18 14 10 13 14 16 17 22 24 25 24 26 20 30 20 2015 18 16 20 16 11 21 14 14 8 18 14 15 20 28 31 31 29 21 23 24 22 24 21 26 18 17 22 20 20 16 23 26 26 23 24 22 21 31 21 2016 22 17 16 13 7 10 8 8 15 14 14 20 23 25 32 37 29 24 22 24 24 25 28 26 21 23 20 14 16 15 17 22 24 25 25 23 20 37 22 2017 14 15 10 9 11 9 11 10 11 10 13 15 15 33 38 41 33 31 26 25 22 23 20 21 17 16 15 26 15 24 20 28 31 34 31 23 21 41 20 2018 18 13 14 17 8 15 13 17 14 14 16 20 22 26 34 33 36 22 21 24 25 24 24 22 22 24 25 22 26 18 23 29 29 29 29 24 22 36 22 2019 29 29 22 22 24 17 14 13 21 16 20 18 24 37 40 44 31 23 26 23 24 31 25 26 20 20 14 16 16 16 21 26 28 31 34 32 24 44 24 2020 25 16 15 15 15 15 13 11 10 13 11 14 26 20 24 26 25 22 25 22 24 23 23 23 21 16 20 17 16 20 22 26 29 26 28 30 20 30 21 2021 24 23 22 11 16 10 9 9 16 11 14 17 18 21 41 48 44 31 26 20 21 22 21 22 18 20 15 17 16 16 17 25 31 32 30 26 22 48 20 2022 22 24 22 22 9 11 11 11 9 13 21 24 17 17 23 34 32 28 22 25 23 26 22 22 24 17 25 25 22 23 22 26 31 32 31 24 22 34 22 Detrend year:

Average adjustment for annual peak wind speed values based on linear trendline, to 2023 = 2.1 mph 2.2 mph Slope = 0.06 mph/year 0.068 mph/year
2-min Annual Peak Wind Speed by Direction
^^^ Wind speeds reported at

22.5-degree intervals prior to
1964.
vvv Wind speeds reported at
10-degree intervals after
1964.

X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-McClellan (MCC).xlsm Year 360 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 Mean Max Median 1964 27 22 20 23 11 20 18 13 15 15 18 19 19 25 36 43 36 41 42 27 26 25 25 25 27 15 22 23 22 22 18 18 23 31 31 29 24 43 23 1965 29 31 13 11 11 11 10 12 18 13 18 15 15 27 34 36 43 38 36 30 27 27 29 20 18 22 15 19 22 15 18 22 28 31 34 26 23 43 22 1966 27 22 14 15 13 11 9 12 12 12 13 20 19 24 28 38 32 38 27 32 27 24 22 24 22 18 20 14 19 18 21 27 28 27 27 27 22 38 22 1967 23 32 23 34 24 11 8 12 13 13 14 19 22 29 45 46 36 29 27 23 24 23 27 24 17 27 15 19 16 19 15 17 17 25 27 25 23 46 23 1968 21 22 17 12 10 14 8 8 12 10 13 17 20 24 23 33 33 25 22 18 20 22 22 27 27 18 20 21 15 17 27 24 27 27 23 25 20 33 21 1969 25 22 23 14 13 8 8 11 20 14 15 23 22 31 39 40 40 40 29 20 24 29 33 24 20 22 21 16 20 18 20 18 24 25 26 26 23 40 22 1970 26 21 19 29 10 14 15 10 16 17 10 16 22 23 28 37 38 36 29 22 22 21 24 26 22 17 16 16 15 16 22 22 29 29 29 25 22 38 22 1973 25 20 17 18 11 19 12 12 15 11 17 18 30 27 34 42 53 35 28 26 26 33 23 24 18 17 22 13 15 16 17 17 23 25 26 26 23 53 21 1974 27 26 24 17 13 10 12 12 12 12 13 19 26 24 31 38 40 40 32 31 24 27 26 24 20 21 17 15 16 16 17 17 26 26 33 35 23 40 24 1975 24 23 23 17 12 13 12 17 10 10 12 18 17 26 26 40 47 43 43 24 27 25 25 23 25 16 20 13 17 19 17 21 24 32 33 33 23 47 23 1976 26 17 17 12 17 9 9 12 11 9 12 13 16 21 28 37 28 26 22 26 24 21 31 21 19 18 17 14 14 14 21 17 21 24 28 26 19 37 18 1977 20 26 17 13 14 10 7 9 11 12 10 13 14 17 18 33 45 33 29 27 20 22 20 26 19 21 14 20 27 24 17 18 21 24 25 26 20 45 20 1978 19 19 19 17 11 13 14 14 8 12 15 17 20 26 37 42 41 40 26 21 21 26 20 21 17 17 19 17 12 17 17 18 21 29 32 26 21 42 19 1979 20 16 16 13 10 10 10 12 13 10 12 13 26 21 37 37 37 28 26 26 20 21 23 22 20 16 19 12 14 15 13 16 19 21 30 21 19 37 19 1980 26 24 18 12 16 14 10 12 12 19 12 26 23 23 35 37 37 37 26 23 30 21 24 23 18 20 24 18 12 14 18 20 26 29 37 26 22 37 23 1981 21 14 14 12 16 12 12 14 14 14 16 15 32 23 28 37 42 28 23 25 25 23 20 25 16 15 19 17 21 16 25 21 24 31 26 27 21 42 21 1982 21 15 12 14 9 9 11 12 9 19 23 17 19 25 37 37 30 28 29 23 21 28 23 21 17 20 16 28 14 15 15 20 19 23 22 23 20 37 20 1983 17 21 28 19 11 14 14 13 11 13 12 20 19 36 35 37 37 32 25 23 29 21 21 21 20 13 16 23 13 12 16 19 23 23 23 23 21 37 20 1984 21 16 15 12 8 14 9 14 11 14 19 20 16 22 37 35 30 29 23 20 19 21 19 16 16 14 16 16 22 29 14 21 19 32 31 28 20 37 19 1985 28 20 16 9 14 10 12 9 14 13 12 13 13 16 32 38 43 28 24 24 29 22 23 23 19 19 16 16 15 17 19 19 22 25 25 25 20 43 19 1986 21 16 13 8 12 12 9 12 14 15 16 23 20 21 32 46 36 32 32 23 23 25 21 21 16 17 17 14 14 16 15 15 18 21 20 22 20 46 18 1987 28 17 16 9 13 7 8 10 14 13 10 18 20 23 29 32 32 22 23 23 20 20 23 16 20 11 15 16 14 13 14 14 20 21 31 26 18 32 18 1988 25 18 21 23 18 25 21 8 11 10 14 14 16 23 25 34 28 31 24 21 21 19 23 21 16 19 18 21 14 18 16 15 17 25 31 30 20 34 21 1989 23 15 10 9 8 8 7 9 10 9 12 14 14 16 23 27 25 22 24 23 25 24 18 19 17 17 16 16 16 25 14 17 12 19 25 27 17 27 17 1990 20 17 14 17 20 20 12 11 9 12 16 15 16 17 31 37 32 20 25 20 19 20 20 19 18 18 17 19 17 17 16 19 19 22 22 20 19 37 19 1991 22 20 17 11 10 13 11 11 13 16 18 16 18 32 34 34 32 30 30 25 25 24 25 27 25 19 18 13 13 13 13 19 19 23 25 25 21 34 19 1992 18 17 16 19 15 19 10 12 16 12 18 17 20 25 34 33 35 32 24 29 21 24 27 19 17 16 18 26 18 15 13 16 21 24 23 23 21 35 19 1993 25 20 16 13 18 12 13 11 11 12 17 25 22 24 26 36 31 28 31 32 24 32 24 24 19 20 26 17 16 16 18 20 22 21 21 22 21 36 21 1994 21 17 17 13 13 11 13 11 11 12 12 14 36 35 29 33 31 26 21 24 21 20 30 20 20 14 19 21 20 15 20 20 20 25 22 24 20 36 20 1995 21 27 22 17 11 15 12 19 13 16 20 22 27 35 35 50 37 29 23 28 25 27 27 20 15 14 13 15 12 15 17 19 22 28 28 27 22 50 22 1996 21 21 23 18 13 12 12 15 10 12 16 18 22 28 33 34 34 28 27 25 26 23 29 18 19 15 19 14 16 14 15 23 22 36 22 20 21 36 21 1997 31 21 26 19 19 26 21 20 20 12 18 17 18 28 31 36 35 28 25 20 18 19 24 19 13 19 17 16 16 16 16 17 21 27 28 31 22 36 20 1998 27 17 19 17 22 13 15 14 14 20 19 20 26 37 47 34 36 26 24 20 20 22 22 21 24 19 20 17 12 12 12 15 20 28 28 30 22 47 20 1999 29 27 20 20 13 12 14 12 13 11 18 21 23 26 32 30 30 27 22 21 20 21 20 15 19 17 17 21 20 13 15 13 21 22 25 26 20 32 20 2000 31 22 19 12 10 12 12 12 13 15 11 13 19 22 19 28 35 33 30 26 26 25 27 28 23 21 15 19 11 21 18 16 21 33 35 30 21 35 21 2012 20 19 11 10 13 10 15 11 10 13 25 22 23 31 34 34 36 28 24 25 23 20 20 27 22 19 19 22 16 16 24 28 32 31 33 25 22 36 22 2013 28 15 15 27 17 16 15 16 12 11 12 13 17 17 26 31 26 21 21 27 31 28 24 20 21 19 17 19 16 19 21 31 31 33 33 28 21 33 21 2014 26 28 29 29 24 18 21 13 12 13 12 14 31 25 27 28 26 22 20 21 20 20 20 19 19 14 11 13 14 17 18 22 25 26 25 27 21 31 21 2015 19 17 20 17 12 21 14 14 9 19 14 15 20 28 32 32 29 21 24 25 22 25 21 27 19 18 22 20 20 17 24 27 27 24 25 22 21 32 21 2016 22 18 17 13 7 11 8 8 15 14 14 20 23 26 33 37 29 25 22 25 25 26 28 27 21 23 20 14 17 15 18 22 25 26 26 23 21 37 22 2017 14 15 11 10 12 10 12 11 12 11 13 15 15 34 38 42 34 31 27 26 22 23 20 21 18 16 15 27 15 25 20 28 31 35 31 23 21 42 20 2018 19 13 14 18 8 15 13 18 14 14 16 20 22 27 35 34 36 22 21 24 26 24 24 22 22 24 26 22 27 19 23 29 29 29 29 24 22 36 22 2019 29 29 22 22 24 17 14 13 21 16 20 19 24 37 41 44 31 23 27 23 24 31 26 27 20 20 14 16 16 16 21 27 28 31 35 32 25 44 24 2020 25 16 15 15 15 15 13 12 10 13 12 14 27 20 24 27 25 22 25 22 24 23 23 23 21 16 20 17 16 20 22 27 29 27 28 30 20 30 22 2021 24 23 22 12 16 10 9 9 16 12 14 17 18 21 42 48 44 31 27 20 21 22 21 22 18 20 15 17 16 16 17 25 31 32 30 27 22 48 20 2022 22 24 22 22 9 11 11 11 9 13 21 24 17 17 23 35 32 28 22 25 23 26 22 22 24 17 25 25 22 23 22 26 31 32 31 24 22 35 23 2023
DETRENDED --- 2-min Annual Peak Wind Speed by Direction X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-McClellan (MCC).xlsm Calculate Kolmogorov-Smirnov (K-S) Test for various levels of significance, to evaluate the likelihood of non-stationarity in wind speeds.

Sample data is based on the median value (of all wind directions) of annual maximums (for each wind direction).

Count Mean Std Dev
Total 46 19.1 1.8
Sample 1 23 18.2 1.2Sample 2 23 20.0 1.9 Maximum Difference, Dn,m = 0.57 Combine
37 Sample 1 Sample 2 Sample 1 Sample 2 Unique Sample 1 Sample 2 Significance Year U (mph) Value Cum Freq Value Cum Freq Half-Rank Stepwise Cum Freq Value Cum Freq Value Values RankMin RankMax RankMin RankMax Level K-S Dtest Result Explanation 1964 20.35612 1 16.01895 0.043 15.01233 0.043 1.5 1 0.043478 16.01895 0.043478 15.01233 15.01233 0.043478 0.043478 0.043478 0.086957 10% 0.25 Reject Ho 1965 19.03881 2 16.38556 0.087 17.03178 0.087 2.5 1.5 0.086957 16.01895 0.086957 15.01233 16.01895 0.043478 0.086957 0.086957 0.086957 50% 0.30 Reject Ho 1966 18.00112 3 16.55954 0.130 18.579 0.130 3.5 2 0.086957 16.38556 0.086957 17.03178 16.38556 0.086957 0.130435 0.086957 0.086957 90% 0.40 Reject Ho 1967 19.18173 4 16.59682 0.174 18.579 0.174 4.5 2.5 0.130435 16.38556 0.130435 17.03178 16.55954 0.130435 0.173913 0.086957 0.086957 95% 0.44 Reject Ho 1968 16.59682 5 17.08771 0.217 18.62871 0.217 5.5 3 0.130435 16.55954 0.130435 18.579 16.59682 0.173913 0.217391 0.086957 0.086957 99% 0.51 Reject Ho With 99% significance, the samples come from different population distributions. 1969 19.42406 6 17.30519 0.261 18.63492 0.261 6.5 3.5 0.173913 16.55954 0.173913 18.579 17.03178 0.217391 0.217391 0.086957 0.130435 99.9% 0.60 Accept Ho Null hypothesis cannot be rejected at the 99.9% significance level. (Population distributions assumed equal) 1970 18.46715 7 17.45432 0.304 19.29979 0.304 7.5 4 0.173913 16.59682 0.173913 18.579 17.08771 0.217391 0.26087 0.130435 0.130435 1973 19.33707 8 17.54752 0.348 19.32464 0.348 8.5 4.5 0.217391 16.59682 0.217391 18.579 17.30519 0.26087 0.304348 0.130435 0.130435 1974 19.57941 9 17.65937 0.391 19.6229 0.391 9.5 5 0.217391 17.08771 0.217391 18.62871 17.45432 0.304348 0.347826 0.130435 0.130435 1975 19.8031 10 18.00112 0.435 20.05786 0.435 10.5 5.5 0.26087 17.08771 0.26087 18.62871 17.54752 0.347826 0.391304 0.130435 0.130435 1976 16.38556 11 18.18132 0.478 20.25049 0.478 11.5 6 0.26087 17.30519 0.26087 18.63492 17.65937 0.391304 0.434783 0.130435 0.130435 1977 17.08771 12 18.19375 0.522 20.2567 0.522 12.5 6.5 0.304348 17.30519 0.304348 18.63492 18.00112 0.434783 0.478261 0.130435 0.1304351978 18.18132 13 18.29938 0.565 20.28777 0.565 13.5 7 0.304348 17.45432 0.304348 19.29979 18.18132 0.478261 0.521739 0.130435 0.130435 1979 16.55954 14 18.46715 0.609 20.32505 0.609 14.5 7.5 0.347826 17.45432 0.347826 19.29979 18.19375 0.521739 0.565217 0.130435 0.130435 1980 19.51727 15 18.65978 0.652 20.64195 0.652 15.5 8 0.347826 17.54752 0.347826 19.32464 18.29938 0.565217 0.608696 0.130435 0.130435 1981 18.65978 16 19.03881 0.696 20.65438 0.696 16.5 8.5 0.391304 17.54752 0.391304 19.32464 18.46715 0.608696 0.652174 0.130435 0.130435 1982 17.54752 17 19.18173 0.739 20.79729 0.739 17.5 9 0.391304 17.65937 0.391304 19.6229 18.579 0.652174 0.652174 0.130435 0.217391 1983 18.29938 18 19.33707 0.783 20.84079 0.783 18.5 9.5 0.434783 17.65937 0.434783 19.6229 18.579 0.652174 0.652174 0.130435 0.217391 1984 17.45432 19 19.42406 0.826 21.18254 0.826 19.5 10 0.434783 18.00112 0.434783 20.05786 18.62871 0.652174 0.652174 0.217391 0.260871985 17.65937 20 19.51727 0.870 21.77285 0.870 20.5 10.5 0.478261 18.00112 0.478261 20.05786 18.63492 0.652174 0.652174 0.26087 0.3043481986 17.30519 21 19.57941 0.913 22.04625 0.913 21.5 11 0.478261 18.18132 0.478261 20.25049 18.65978 0.652174 0.695652 0.304348 0.3043481987 16.01895 22 19.8031 0.957 22.12081 0.957 22.5 11.5 0.521739 18.18132 0.521739 20.25049 19.03881 0.695652 0.73913 0.304348 0.3043481988 18.19375 23 20.35612 1.000 24.2894 1.000 23.5 12 0.521739 18.19375 0.521739 20.2567 19.18173 0.73913 0.782609 0.304348 0.3043481989 15.01233 12.5 0.565217 18.19375 0.565217 20.2567 19.29979 0.782609 0.782609 0.304348 0.3478261990 17.03178 13 0.565217 18.29938 0.565217 20.28777 19.32464 0.782609 0.782609 0.347826 0.3913041991 18.63492 13.5 0.608696 18.29938 0.608696 20.28777 19.33707 0.782609 0.826087 0.391304 0.3913041992 18.62871 14 0.608696 18.46715 0.608696 20.32505 19.42406 0.826087 0.869565 0.391304 0.3913041993 19.32464 14.5 0.652174 18.46715 0.652174 20.32505 19.51727 0.869565 0.913043 0.391304 0.3913041994 18.579 15 0.652174 18.65978 0.652174 20.64195 19.57941 0.913043 0.956522 0.391304 0.3913041995 20.65438 15.5 0.695652 18.65978 0.695652 20.64195 19.6229 0.956522 0.956522 0.391304 0.4347831996 19.29979 16 0.695652 19.03881 0.695652 20.65438 19.8031 0.956522 1 0.434783 0.4347831997 20.05786 16.5 0.73913 19.03881 0.73913 20.65438 20.05786 1 1 0.434783 0.4782611998 20.28777 17 0.73913 19.18173 0.73913 20.79729 20.25049 1 1 0.478261 0.5217391999 18.579 17.5 0.782609 19.18173 0.782609 20.79729 20.2567 1 1 0.521739 0.5652172000 19.6229 18 0.782609 19.33707 0.782609 20.84079 20.28777 1 1 0.565217 0.6086962012 21.18254 18.5 0.826087 19.33707 0.826087 20.84079 20.32505 1 1 0.608696 0.6521742013 20.79729 19 0.826087 19.42406 0.826087 21.18254 20.35612 1 1 0.652174 0.6521742014 20.32505 19.5 0.869565 19.42406 0.869565 21.18254 20.64195 1 1 0.652174 0.6956522015 20.64195 20 0.869565 19.51727 0.869565 21.77285 20.65438 1 1 0.695652 0.739132016 20.2567 20.5 0.913043 19.51727 0.913043 21.77285 20.79729 1 1 0.73913 0.7826092017 20.84079 21 0.913043 19.57941 0.913043 22.04625 20.84079 1 1 0.782609 0.8260872018 22.04625 21.5 0.956522 19.57941 0.956522 22.04625 21.18254 1 1 0.826087 0.8695652019 24.2894 22 0.956522 19.8031 0.956522 22.12081 21.77285 1 1 0.869565 0.9130432020 20.25049 22.5 1 19.8031 1 22.12081 22.04625 1 1 0.913043 0.9565222021 21.77285 23 1 20.35612 1 24.2894 22.12081 1 1 0.956522 12022 22.12081 23.5 1 20.35612 1 24.2894 24.2894 1 1 1 1 USACE RMC-TR-2021-02 (PDF p17):
0 0.10.20.30.40.50.60.70.80.9
1 0 5 10 15 20 25 30
Step-Wise Cumulative Distribution Functions Sample 1 Sample 2 X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-McClellan (MCC).xlsm X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-McClellan (MCC).xlsm y = 0.0637x - 107.74
R² = 0.3878
y = 0.068x - 116.7
R² = 0.3469
05 1015202530
1960 1970 1980 1990 2000 2010 2020 2030
Peak Annual 2-minute Observed Wind Speed, Averages of All Wind Directions (mph) Year
Mean Median Historical Trend of Average Annual Peak Wind Speeds X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-McClellan (MCC).xlsm y = -0.0000x + 21.1564
R² = 0.0000
y = 0.0043x + 12.2
R² = 0.0021
05 1015202530
1960 1970 1980 1990 2000 2010 2020 2030
Peak Annual 2-minute Observed Wind Speed, Averages of All Wind Directions (mph) Year
Mean Median Detrended (to 2023) Average Annual Peak Wind Speeds

3.2 – Design Wind Speed Analysis for Mather Airport (MHR) GEV Frequency Plots of Observed 2-min Wind Speed (mph)
y = 3.42x + 20.478
R² = 0.8673
0 10
20 30
40 50
-2 0 2 4 6
360
y = 5.1676x + 17.058
R² = 0.9857
0 10
20 30
40 -2 0 2 4
10 y = 4.7534x + 13.115
R² = 0.98
0 10
20 30
40 -2 0 2 4
20 y = 4.9445x + 10.488
R² = 0.9833
0 10
20 30
40 -2 0 2 4 6
30 y = 3.3643x + 9.0441
R² = 0.979
0 10
20 30
40 -5 0 5 10
40 y = 3.094x + 8.9264
R² = 0.9796
0 5
10 15
20 25
30 -5 0 5 10
50 y = 2.3365x + 7.5444
R² = 0.9757
0 5
10 15
20 25
-5 0 5 10
60 y = 2.3472x + 8.0217
R² = 0.9703
0 10
20 30
40 -5 0 5 10
70 y = 1.8377x + 8.2399
R² = 0.9219
0 10
20 30
40 -10 0 10 20
80 y = 2.3264x + 8.7206
R² = 0.9315
0 10
20 30
40 -5 0 5 10 15
90 y = 1.9488x + 10.167
R² = 0.9816
0 10
20 30
40 -10 0 10 20
100
y = 1.7926x + 11.935
R² = 0.959
0 10
20 30
40 50
60 -10 0 10 20 30
110
y = 3.7788x + 15.647
R² = 0.9808
0 10
20 30
40 50
-5 0 5 10
120
y = 6.9639x + 21.782
R² = 0.9837
0 10
20 30
40 50
60 -5 0 5
130
y = 6.605x + 27.323
R² = 0.9947
0 10
20 30
40 50
60 -2 0 2 4
140
y = 6.0715x + 30.184
R² = 0.9064
0 20
40 60
80 -2 0 2 4
150
y = 5.8599x + 30.829
R² = 0.9796
0 10
20 30
40 50
-4 -2 0 2
160
y = 6.4452x + 26.593
R² = 0.9596 0
10 20
30 40
50 -2 0 2 4
170
y = 4.4212x + 21.996
R² = 0.9804
0 10
20 30
40 -2 0 2 4
180
y = 3.6271x + 19.89
R² = 0.9848
0 10
20 30
40 50
-5 0 5 10
190
y = 2.4569x + 20.621
R² = 0.9835
0 10
20 30
40 -5 0 5 10
200
y = 3.3077x + 20.906
R² = 0.9838
0 10
20 30
40 50
-5 0 5 10
210
y = 3.31x + 21.733
R² = 0.971
0 10
20 30
40 -2 0 2 4
220
y = 3.0729x + 21.466
R² = 0.9732
0 10
20 30
40 -2 0 2 4
230
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Mather (MHR).xlsm GEV Frequency Plots of Observed 2-min Wind Speed (mph)
y = 2.9926x + 19.928
R² = 0.9448
0 10
20 30
40 50
-5 0 5 10
240
y = 3.7103x + 17.471
R² = 0.9792
0 10
20 30
40 -2 0 2 4 6
250
y = 3.3168x + 15.255
R² = 0.9765
0 10
20 30
40 -5 0 5 10
260
y = 3.9734x + 13.134
R² = 0.9697
0 10
20 30
40 -2 0 2 4 6
270
y = 2.9758x + 13.757
R² = 0.9784
0 10
20 30
40 -5 0 5 10
280
y = 3.4059x + 14.918
R² = 0.9825 0
5 10
15 20
25 30
-2 0 2 4 6
290
y = 4.5211x + 18.034
R² = 0.9794
0 10
20 30
40 -2 0 2 4 6
300
y = 4.7473x + 18.744
R² = 0.9719
0 10
20 30
40 50
-5 0 5
310
y = 4.8023x + 22.886
R² = 0.9788 0
10 20
30 40
50 -2 0 2 4
320
y = 4.6009x + 24.317
R² = 0.9881 0
10 20
30 40
50 -2 0 2 4
330
y = 3.0561x + 25.394
R² = 0.9508 0
10 20
30 40
50 -5 0 5 10
340
y = 3.5353x + 23.761
R² = 0.982
0 10
20 30
40 50
-5 0 5 10
350
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Mather (MHR).xlsm Year 360 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 Mean Max Median 1942 29 0 23 0 0 9 0 11 0 11 0 15 0 0 38 0 49 0 40 0 34 0 0 24 0 28 0 32 0 14 0 0 18 0 31 0 11 49 0 1943 29 0 45 0 0 10 0 9 0 11 0 13 0 0 19 0 52 0 56 0 34 0 0 28 0 19 0 17 0 13 0 0 15 0 25 0 11 56 0 1944 30 0 25 0 0 26 0 9 0 13 0 14 0 0 23 0 34 0 46 0 28 0 0 25 0 21 0 14 0 13 0 0 18 0 33 0 10 46 0 1945 34 0 22 0 0 19 0 10 0 19 0 19 0 0 45 0 49 0 41 0 26 0 0 28 0 24 0 19 0 25 0 0 30 0 34 0 12 49 0 1946 32 0 10 0 0 18 0 8 0 15 0 11 0 0 34 0 40 0 32 0 23 0 0 24 0 19 0 16 0 23 0 0 25 0 36 0 10 40 0 1947 28 0 23 0 0 13 0 11 0 19 0 25 0 0 34 0 32 0 30 0 28 0 0 28 0 24 0 18 0 18 0 0 29 0 34 0 11 34 0 1948 30 0 19 0 0 13 0 10 0 16 0 21 0 0 26 0 41 0 49 0 25 0 0 26 0 24 0 25 0 22 0 0 23 0 34 0 11 49 0 1949 30 0 25 0 0 18 0 11 0 11 0 14 0 0 31 0 40 0 40 0 30 0 0 26 0 18 0 16 0 22 0 0 26 0 28 0 11 40 0 1950 23 0 18 0 0 10 0 8 0 10 0 13 0 0 30 0 49 0 47 0 49 0 0 30 0 22 0 16 0 18 0 0 28 0 26 0 11 49 0 1951 26 0 24 0 0 22 0 22 0 11 0 17 0 0 34 0 41 0 36 0 48 0 0 41 0 26 0 26 0 26 0 0 24 0 22 0 12 48 0 1952 26 0 26 0 0 14 0 11 0 16 0 19 0 0 44 0 60 0 49 0 34 0 0 33 0 30 0 19 0 21 0 0 18 0 28 0 13 60 0 1953 30 0 36 0 0 33 0 19 0 16 0 17 0 0 40 0 41 0 44 0 34 0 0 28 0 26 0 26 0 26 0 0 22 0 28 0 13 44 0 1954 30 0 21 0 0 16 0 13 0 18 0 25 0 0 49 0 45 0 46 0 30 0 0 26 0 28 0 28 0 28 0 0 17 0 26 0 12 49 0 1955 30 0 34 0 0 25 0 21 0 16 0 22 0 0 46 0 41 0 34 0 30 0 0 32 0 23 0 21 0 25 0 0 23 0 25 0 13 46 0 1956 25 0 26 0 0 17 0 14 0 21 0 45 0 0 51 0 44 0 30 0 24 0 0 28 0 21 0 21 0 18 0 0 19 0 34 0 12 51 0 1957 26 0 18 0 0 10 0 10 0 37 0 21 0 0 43 0 39 0 30 0 31 0 0 31 0 21 0 17 0 16 0 0 30 0 30 0 11 43 0 1958 19 0 21 0 0 11 0 16 0 23 0 25 0 0 41 0 48 0 34 0 28 0 0 24 0 21 0 14 0 18 0 0 18 0 30 0 11 48 0 1959 33 0 18 0 0 16 0 9 0 13 0 11 0 0 40 0 49 0 24 0 23 0 0 21 0 18 0 16 0 16 0 0 34 0 30 0 10 49 0 1960 25 0 23 0 0 18 0 14 0 10 0 14 0 0 24 0 45 0 32 0 28 0 0 30 0 29 0 18 0 17 0 0 18 0 29 0 10 45 0 1961 23 0 22 0 0 25 0 21 0 9 0 21 0 0 21 0 25 0 19 0 24 0 0 23 0 25 0 22 0 16 0 0 28 0 28 0 10 28 0 1962 21 0 23 0 0 8 0 15 0 11 0 11 0 0 28 0 37 0 44 0 32 0 0 24 0 23 0 23 0 14 0 0 18 0 24 0 10 44 0 1963 18 0 8 0 0 14 0 7 0 11 0 18 0 0 33 0 33 0 23 0 21 0 0 19 0 29 0 17 0 14 0 0 21 0 25 0 9 33 0 1964 26 25 23 14 14 14 9 11 8 7 9 11 15 28 32 34 37 37 30 23 24 19 25 29 29 21 24 15 15 17 18 17 23 21 30 31 21 37 22 1965 24 23 6 9 8 8 5 10 7 7 9 13 18 31 32 33 34 30 32 39 23 23 21 23 17 18 16 13 14 16 17 16 21 30 30 31 20 39 18 1966 21 23 14 9 11 9 8 6 10 11 10 18 18 23 32 34 37 34 32 21 21 23 26 28 19 21 23 17 11 14 25 21 23 29 29 23 20 37 21 1967 25 18 19 15 14 6 5 5 8 8 15 11 11 28 24 39 34 28 22 23 17 22 23 24 23 21 16 17 16 15 16 18 16 21 29 23 19 39 18 1968 22 22 16 6 10 9 9 15 7 6 10 11 14 23 24 30 32 25 23 25 18 23 25 21 25 25 21 25 16 16 13 19 21 23 30 25 19 32 21 1969 29 22 23 6 18 16 5 9 9 13 16 16 19 29 34 37 38 26 21 32 21 34 25 28 23 19 17 13 15 15 15 17 19 26 29 25 21 38 20 1970 23 26 28 19 19 15 7 8 7 9 9 13 16 24 28 34 33 31 23 21 21 23 23 22 21 16 17 10 15 13 18 19 25 32 34 29 20 34 21 1973 17 17 15 9 7 15 6 7 10 10 10 11 16 17 25 30 37 23 18 19 19 23 21 22 19 15 11 9 11 14 14 16 21 26 23 22 17 37 17 1974 28 30 10 14 4 4 7 7 7 7 13 21 18 16 30 26 30 28 25 23 19 18 18 18 19 17 13 10 13 11 17 14 21 24 29 33 18 33 18 1975 25 23 14 25 14 18 7 6 11 11 8 11 16 19 28 43 37 34 25 17 21 26 23 23 18 19 11 13 11 18 16 21 24 32 32 28 20 43 19 1976 21 15 14 7 9 11 8 9 8 14 11 17 18 18 24 33 34 25 23 19 19 30 29 23 23 21 18 16 18 16 17 23 30 28 28 25 20 34 19 1977 21 18 11 7 8 7 7 9 7 9 9 11 16 21 31 30 34 29 23 19 18 18 18 18 18 21 16 21 23 21 21 23 26 28 25 28 19 34 19 1978 25 21 21 7 11 6 7 10 8 9 7 17 18 22 29 36 36 34 22 26 30 23 28 21 18 16 16 11 11 16 25 23 30 30 28 36 20 36 21 1979 18 16 11 10 14 11 11 11 8 8 7 11 11 32 40 39 32 39 19 25 25 26 23 23 22 21 15 13 11 16 21 19 19 32 28 21 20 40 19 1980 21 18 11 5 6 10 8 15 7 7 11 9 11 26 37 37 34 29 25 23 22 23 23 25 18 18 18 19 16 11 19 16 23 37 25 23 19 37 19 1981 21 14 15 11 11 4 6 11 8 7 14 15 14 16 23 30 30 34 37 30 23 28 23 25 17 21 23 16 14 17 17 18 17 19 23 32 19 37 17 1982 21 16 11 8 7 8 9 11 11 9 10 17 28 30 28 33 33 32 28 26 25 22 25 19 28 16 14 11 10 9 18 15 16 21 26 23 19 33 18 1983 26 29 18 19 19 15 9 9 8 8 10 11 30 34 34 32 39 32 28 37 24 25 23 23 28 23 15 9 13 14 18 15 21 18 21 29 21 39 21 1984 22 15 11 13 10 9 8 6 7 11 14 11 14 18 30 34 29 25 18 18 21 17 16 16 21 18 16 11 11 14 16 23 25 25 26 28 18 34 16 1985 23 18 16 9 7 9 9 8 9 6 11 14 18 14 21 34 25 22 20 16 21 21 20 21 17 14 15 11 11 14 14 14 23 23 25 28 17 34 16 1986 22 14 11 9 9 11 11 8 11 8 7 11 18 25 30 34 37 32 30 22 21 21 21 23 21 18 33 16 16 14 17 17 23 23 22 21 19 37 20 1987 28 21 14 14 9 13 9 7 11 11 11 14 14 23 25 32 34 34 21 18 18 21 18 21 20 21 16 11 14 13 15 23 28 23 30 29 19 34 18 1988 20 21 23 23 28 23 10 18 14 14 36 14 14 17 29 34 29 21 17 23 21 17 23 17 26 28 24 28 29 28 29 28 30 32 28 26 23 36 23 1989 17 9 11 10 6 8 6 7 14 10 11 11 14 16 21 23 25 23 22 15 23 21 23 24 17 15 11 10 11 10 10 20 23 18 23 18 16 25 15 1990 23 17 20 21 21 10 18 6 5 9 11 8 18 18 21 23 34 34 20 16 20 23 26 20 20 17 15 13 16 15 17 21 25 23 26 23 19 34 20 1991 23 23 18 21 10 9 6 10 8 11 14 11 14 17 22 30 36 33 31 25 30 29 32 23 30 23 16 23 16 22 17 14 18 24 29 23 21 36 22 1992 25 17 11 7 9 8 8 6 10 13 9 14 13 14 19 29 31 31 23 21 28 23 18 18 17 17 14 14 14 19 21 11 17 21 23 23 17 31 17 2002 23 19 7 17 8 17 11 10 13 11 10 19 22 30 29 44 41 34 33 24 22 18 18 24 46 14 15 16 15 18 30 24 28 24 23 23 22 46 21 2003 19 17 11 15 9 9 8 17 9 11 21 15 17 34 31 28 24 26 22 18 21 17 23 22 28 15 15 13 17 18 22 19 23 22 21 23 19 34 19 2004 23 23 16 15 11 9 7 8 11 9 11 15 21 38 49 31 34 34 34 23 23 19 19 18 16 17 11 13 18 16 18 28 29 24 30 23 21 49 19 2005 18 14 14 13 13 7 11 11 10 15 13 19 24 24 40 33 33 31 31 21 24 25 33 21 26 33 18 24 17 14 19 24 23 21 24 21 21 40 21 2006 25 24 17 15 8 14 10 8 14 17 11 9 21 21 38 28 31 34 25 24 21 24 25 23 23 26 21 14 13 18 30 15 23 28 30 23 21 38 22 2007 21 22 15 20 13 7 7 8 8 8 13 10 15 18 23 20 23 21 18 16 22 23 32 23 25 20 20 13 13 14 18 23 24 30 29 25 18 32 20 2008 16 20 9 9 20 11 8 18 8 11 15 11 24 40 36 36 26 24 23 18 26 21 21 21 18 17 23 22 15 26 24 28 29 25 30 23 21 40 21 2009 18 10 11 8 14 11 13 7 10 9 15 21 22 32 43 37 30 25 18 21 18 20 20 23 16 14 15 22 25 21 25 29 28 26 28 25 20 43 20 2010 23 14 13 9 7 8 18 30 29 32 26 26 24 30 41 34 30 33 25 21 23 24 28 23 23 21 20 16 22 17 17 23 25 25 24 22 23 41 23 2011 17 18 14 10 13 10 11 15 28 29 23 28 30 34 38 40 29 25 25 23 23 21 23 22 24 24 21 25 25 24 25 23 31 28 25 25 24 40 24 2012 9 15 8 9 6 11 8 8 10 10 17 18 22 28 37 32 26 26 17 20 22 18 23 20 20 14 13 11 17 18 28 29 31 22 25 20 19 37 18 2013 23 14 25 16 7 15 9 14 7 10 11 11 14 21 22 16 16 15 17 16 23 30 25 26 24 23 16 10 16 15 21 26 28 28 22 40 19 40 16 2014 27 21 17 29 36 24 11 9 10 13 11 10 13 20 29 26 38 47 23 29 17 36 27 27 21 27 16 22 11 14 17 16 36 38 45 38 24 47 23 2015 40 22 16 17 13 8 8 13 34 34 16 51 40 43 26 25 29 17 25 18 25 38 27 29 27 17 16 21 18 16 31 43 40 36 40 31 26 51 26 2016 23 14 21 8 6 7 6 8 10 9 11 13 20 54 45 40 38 23 31 27 34 20 23 34 23 25 22 17 18 25 36 38 38 36 31 23 24 54 23 2017 24 9 10 7 7 10 13 7 9 8 11 9 21 31 32 58 36 31 24 18 21 21 21 23 20 21 17 15 14 20 25 22 31 32 31 29 21 58 21 2018 22 11 11 14 16 10 10 15 13 11 10 17 21 37 29 33 24 20 22 17 21 24 25 24 21 23 18 14 16 16 29 26 28 25 24 23 20 37 21 2019 23 33 28 15 14 10 14 10 9 17 10 16 24 29 33 38 28 26 21 26 29 30 22 29 31 13 21 10 13 15 21 23 26 24 26 23 22 38 23 2020 21 25 26 23 13 10 8 8 10 9 9 10 13 20 18 25 25 18 18 22 22 18 22 23 28 14 11 13 18 17 20 21 23 25 25 30 18 30 19 2021 22 25 21 21 13 15 9 10 13 9 11 15 45 37 34 37 38 29 26 25 20 21 21 26 23 14 14 11 18 21 23 30 29 33 32 29 23 45 21 2022 21 20 16 14 15 11 16 9 10 11 11 14 15 17 33 34 32 32 25 21 21 24 25 25 21 23 26 20 22 24 22 29 31 29 28 25 22 34 21 Detrend year:

Average adjustment for annual peak wind speed values based on linear trendline, to 2023 = 1.4 mph 1.4 mph Slope = 0.05 mph/year 0.046 mph/year
vvv Wind speeds reported at
10-degree intervals after
1964.
2-min Annual Peak Wind Speed by Direction
^^^ Wind speeds reported at

22.5-degree intervals prior to
1964.

X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Mather (MHR).xlsm Year 360 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 Mean Max Median 1964 29 28 26 17 17 17 12 14 11 10 12 14 18 30 35 37 40 40 33 26 27 22 28 32 32 24 27 18 18 20 21 20 26 24 33 34 24 40 25 1965 27 26 9 12 11 11 7 13 10 10 12 15 21 34 35 36 37 33 35 42 26 26 23 26 20 21 19 15 17 19 20 19 23 33 33 34 22 42 21 1966 23 26 17 12 14 12 11 8 13 14 13 21 21 26 35 37 40 37 35 23 23 26 29 30 22 23 26 20 14 17 28 23 26 32 32 26 23 40 23 1967 28 21 22 18 16 8 7 7 11 11 18 14 14 30 27 42 37 30 25 26 20 25 26 27 26 23 19 20 19 18 19 21 19 23 31 26 21 42 21 1968 24 24 19 8 13 12 12 18 9 8 13 14 16 26 27 33 35 28 26 28 21 26 28 23 28 28 23 28 19 19 15 22 23 26 33 28 22 35 23 1969 31 24 26 8 21 19 7 12 12 15 19 19 22 31 37 39 41 29 23 35 23 37 28 30 26 22 20 15 17 17 17 20 22 29 31 28 24 41 23 1970 26 29 30 22 22 17 9 11 9 12 12 15 19 27 30 37 36 34 26 23 23 26 26 24 23 19 20 13 17 15 21 22 28 35 37 31 23 37 23 1973 20 20 17 11 9 17 8 9 13 13 13 14 18 20 28 32 39 25 21 22 22 25 23 24 22 17 14 11 14 16 16 18 23 29 25 24 19 39 19 1974 30 32 13 16 7 7 9 9 9 9 15 23 21 18 32 29 32 30 28 25 22 21 21 21 22 19 15 13 15 14 19 16 23 26 31 36 20 36 21 1975 28 25 16 28 16 21 9 8 14 14 10 14 18 22 30 45 39 37 28 19 23 29 25 25 21 22 14 15 14 21 18 23 26 34 34 30 23 45 22 1976 23 17 16 9 11 14 10 11 10 16 14 19 21 21 26 36 37 27 25 22 22 32 31 25 25 23 21 18 21 18 19 25 32 30 30 27 22 37 21 1977 23 20 14 9 10 9 9 11 9 11 11 14 18 23 33 32 37 31 25 22 20 20 20 20 20 23 18 23 25 23 23 25 29 30 27 30 21 37 21 1978 27 23 23 9 13 8 9 12 10 11 9 19 20 24 31 38 38 37 24 28 32 25 30 23 20 18 18 13 13 18 27 25 32 32 30 38 22 38 23 1979 20 18 13 12 16 13 13 13 10 10 9 13 13 34 42 41 34 41 22 27 27 28 25 25 24 23 17 15 13 18 23 22 22 34 30 23 22 42 22 1980 23 20 13 7 8 12 10 17 9 9 13 11 13 28 39 39 36 31 27 25 24 25 25 27 20 20 20 21 18 13 21 18 25 39 27 25 21 39 21 1981 23 16 17 13 13 6 8 13 10 9 16 17 16 18 25 32 32 36 39 32 25 29 25 27 19 23 25 18 16 19 19 20 19 21 25 34 21 39 19 1982 22 18 13 10 9 10 11 13 13 11 12 19 29 32 29 35 35 34 29 28 27 24 27 21 29 18 16 13 12 11 20 17 18 22 28 25 21 35 20 1983 28 30 20 21 21 17 11 11 10 10 12 13 32 36 36 34 41 34 29 39 26 27 25 25 29 25 17 11 14 16 20 17 22 20 22 30 23 41 22 1984 24 17 13 15 12 11 10 8 9 13 16 13 16 20 32 36 31 27 20 20 23 19 18 18 23 20 18 13 13 16 18 25 27 27 28 30 19 36 18 1985 25 20 18 11 9 11 11 10 11 8 13 16 20 16 23 36 27 24 21 18 23 23 21 23 19 16 17 13 13 16 16 16 25 25 27 30 18 36 18 1986 24 16 13 11 11 13 13 10 13 10 9 13 20 27 32 36 39 34 32 24 23 23 23 25 23 20 35 18 18 16 19 19 25 25 24 23 21 39 21 1987 29 22 16 16 11 14 11 9 13 13 13 16 16 25 27 34 36 36 22 20 20 22 20 22 21 22 18 13 16 14 17 25 29 25 32 31 21 36 20 1988 21 22 25 25 29 25 12 20 15 15 37 15 15 19 30 36 30 22 19 25 22 19 25 19 28 29 26 29 30 29 30 29 32 34 29 28 25 37 25 1989 19 11 13 12 7 10 7 9 15 12 13 13 15 18 22 25 27 25 24 17 25 22 25 26 19 17 13 12 13 12 12 21 25 20 25 20 17 27 17 1990 25 19 21 22 22 12 20 7 6 11 13 10 20 20 22 25 36 36 21 18 21 25 28 21 21 19 17 14 18 17 19 22 27 25 28 25 20 36 21 1991 25 25 20 22 12 11 7 12 10 13 15 13 15 19 23 31 37 35 33 27 31 30 34 25 31 25 18 25 18 24 19 15 20 26 30 25 22 37 24 1992 27 19 13 8 11 9 9 7 12 14 11 15 14 15 21 30 32 32 24 22 29 24 20 20 19 19 15 15 15 21 22 13 19 22 24 24 19 32 19 2002 24 20 8 18 9 18 12 11 14 12 11 20 23 31 30 45 42 35 34 25 23 19 19 25 47 15 16 17 16 19 31 25 28 25 24 24 23 47 22 2003 20 18 12 16 10 10 9 18 10 12 22 16 18 35 32 28 25 27 23 19 22 18 24 23 28 16 16 14 18 19 23 20 24 23 22 24 20 35 20 2004 24 24 17 16 12 10 8 9 12 10 12 16 22 39 50 32 35 35 35 24 24 20 20 19 17 18 12 14 19 17 19 28 30 25 31 24 22 50 20 2005 19 15 15 14 14 8 12 12 11 16 14 20 25 25 41 34 34 32 32 22 25 26 34 22 27 34 19 25 18 15 20 25 24 22 25 22 22 41 22 2006 26 25 18 16 9 15 11 9 15 18 12 10 22 22 39 29 32 35 26 25 22 25 26 24 24 27 22 15 14 19 31 16 24 29 31 24 22 39 23 2007 22 23 16 20 13 8 8 9 9 9 13 11 16 19 24 20 24 22 19 17 23 24 33 24 26 20 20 13 13 15 19 24 25 31 30 26 19 33 20 2008 17 20 10 10 20 12 9 19 9 12 16 12 25 41 36 36 27 25 24 19 27 21 21 21 19 18 24 23 16 27 25 28 30 26 31 24 22 41 21 2009 19 11 12 9 15 12 13 8 11 10 16 21 23 33 43 38 31 26 19 21 19 20 20 24 17 15 16 23 26 21 26 30 28 27 28 26 21 43 21 2010 24 14 13 10 8 9 19 31 29 33 27 27 25 31 42 35 31 34 26 21 24 25 28 24 24 21 20 17 23 18 18 24 26 26 25 23 24 42 24 2011 18 19 14 11 13 11 12 16 28 29 24 28 31 35 39 41 29 26 26 24 24 21 24 22 25 25 21 26 26 25 26 24 32 28 26 26 24 41 25 2012 10 15 9 10 6 12 9 9 11 11 18 19 22 28 37 33 27 27 18 20 22 19 24 20 20 14 13 12 18 19 28 29 32 22 26 20 19 37 19 2013 24 14 26 17 7 15 10 14 7 11 12 12 14 21 22 17 17 15 18 17 24 30 26 27 25 24 17 11 17 15 21 27 28 28 22 41 19 41 17 2014 27 21 18 29 36 25 12 10 11 14 12 11 13 21 29 27 38 47 23 29 18 36 27 27 21 27 17 23 12 14 18 17 36 38 45 38 24 47 23 2015 41 22 16 18 13 8 8 13 34 34 16 52 41 43 27 26 29 18 25 19 26 38 27 29 27 18 16 21 19 16 32 43 41 36 41 32 27 52 26 2016 23 14 21 8 6 7 6 8 11 9 12 13 20 54 45 41 38 23 32 27 34 20 23 34 23 25 22 18 19 25 36 38 38 36 32 23 24 54 23 2017 24 9 11 7 7 11 13 7 9 8 12 9 21 32 32 58 36 31 24 19 21 21 21 23 20 21 18 15 14 20 26 22 31 32 31 29 21 58 21 2018 22 12 12 14 16 11 11 15 13 12 11 17 21 37 29 34 24 20 22 17 21 24 26 24 21 23 19 14 16 16 29 27 28 26 24 23 20 37 21 2019 23 34 28 15 14 10 14 10 9 17 10 16 24 29 34 38 28 27 21 27 29 30 22 29 31 13 21 10 13 15 21 23 27 24 27 23 22 38 23 2020 21 25 27 23 13 10 8 8 10 9 9 10 13 20 18 25 25 18 18 22 22 18 22 23 28 14 12 13 18 17 20 21 23 25 25 30 19 30 19 2021 22 25 21 21 13 15 9 10 13 9 12 15 45 37 35 37 38 29 26 25 20 21 21 26 23 14 14 12 18 21 23 30 29 33 32 29 23 45 21 2022 21 20 16 14 15 11 16 9 10 11 11 14 15 17 33 34 32 32 25 21 21 24 25 25 21 23 26 20 22 24 22 29 31 29 28 25 22 34 21 2023
DETRENDED --- 2-min Annual Peak Wind Speed by Direction X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Mather (MHR).xlsm Calculate Kolmogorov-Smirnov (K-S) Test for various levels of significance, to evaluate the likelihood of non-stationarity in wind speeds.

Sample data is based on the median value (of all wind directions) of annual maximums (for each wind direction).

Count Mean Std Dev
Total 48 20.1 2.1
Sample 1 24 19.3 1.7Sample 2 24 21.0 2.2 Maximum Difference, Dn,m = 0.46 Combine
37 Sample 1 Sample 2 Sample 1 Sample 2 Unique Sample 1 Sample 2 Significance Year U (mph) Value Cum Freq Value Cum Freq Half-Rank Stepwise Cum Freq Value Cum Freq Value Values RankMin RankMax RankMin RankMax Level K-S Dtest Result Explanation 1964 21.32546 1 15.55913 0.042 17.09392 0.042 1.5 1 0.041667 15.55913 0.041667 17.09392 15.55913 0.041667 0.083333 0.041667 0.041667 10% 0.25 Reject Ho 1965 19.70368 2 16.73353 0.083 18.31802 0.083 2.5 1.5 0.083333 15.55913 0.083333 17.09392 16.73353 0.083333 0.125 0.041667 0.041667 50% 0.29 Reject Ho 1966 20.48661 3 16.84537 0.125 18.44851 0.125 3.5 2 0.083333 16.73353 0.083333 18.31802 16.84537 0.125 0.166667 0.041667 0.041667 90% 0.39 Reject Ho1967 18.79648 4 17.54131 0.167 18.61628 0.167 4.5 2.5 0.125 16.73353 0.125 18.31802 17.09392 0.166667 0.166667 0.041667 0.083333 97% 0.45 Reject Ho With 97% significance, the samples come from different population distributions.1968 19.11959 5 17.82093 0.208 18.74056 0.208 5.5 3 0.125 16.84537 0.125 18.44851 17.54131 0.166667 0.208333 0.083333 0.083333 99% 0.50 Accept Ho Null hypothesis cannot be rejected at the 99% significance level. (Population distributions assumed equal) 1969 21.1639 6 18.59143 0.250 18.74677 0.250 6.5 3.5 0.166667 16.84537 0.166667 18.44851 17.82093 0.208333 0.25 0.083333 0.083333 99.9% 0.59 Accept Ho Null hypothesis cannot be rejected at the 99.9% significance level. (Population distributions assumed equal) 1970 20.38719 7 18.77784 0.292 18.97668 0.292 7.5 4 0.166667 17.54131 0.166667 18.61628 18.31802 0.25 0.25 0.083333 0.125 1973 16.84537 8 18.79648 0.333 20.08272 0.333 8.5 4.5 0.208333 17.54131 0.208333 18.61628 18.44851 0.25 0.25 0.125 0.166667 1974 17.82093 9 18.96425 0.375 20.31262 0.375 9.5 5 0.208333 17.82093 0.208333 18.74056 18.59143 0.25 0.291667 0.166667 0.166667 1975 20.27534 10 19.03881 0.417 20.53632 0.417 10.5 5.5 0.25 17.82093 0.25 18.74056 18.61628 0.291667 0.291667 0.166667 0.208333 1976 19.5297 11 19.11338 0.458 20.67302 0.458 11.5 6 0.25 18.59143 0.25 18.74677 18.74056 0.291667 0.291667 0.208333 0.251977 18.59143 12 19.11959 0.500 20.82215 0.500 12.5 6.5 0.291667 18.59143 0.291667 18.74677 18.74677 0.291667 0.291667 0.25 0.291667 1978 20.31884 13 19.18173 0.542 20.92157 0.542 13.5 7 0.291667 18.77784 0.291667 18.97668 18.77784 0.291667 0.333333 0.291667 0.291667 1979 19.76582 14 19.5297 0.583 20.97749 0.583 14.5 7.5 0.333333 18.77784 0.333333 18.97668 18.79648 0.333333 0.375 0.291667 0.2916671980 19.11338 15 19.70368 0.625 21.28818 0.625 15.5 8 0.333333 18.79648 0.333333 20.08272 18.96425 0.375 0.416667 0.291667 0.291667 1981 18.96425 16 19.76582 0.667 21.5243 0.667 16.5 8.5 0.375 18.79648 0.375 20.08272 18.97668 0.416667 0.416667 0.291667 0.333333 1982 18.77784 17 20.27534 0.708 21.72314 0.708 17.5 9 0.375 18.96425 0.375 20.31262 19.03881 0.416667 0.458333 0.333333 0.3333331983 21.28818 18 20.31884 0.750 21.78527 0.750 18.5 9.5 0.416667 18.96425 0.416667 20.31262 19.11338 0.458333 0.5 0.333333 0.333333 1984 17.54131 19 20.38719 0.792 22.81675 0.792 19.5 10 0.416667 19.03881 0.416667 20.53632 19.11959 0.5 0.541667 0.333333 0.333333 1985 16.73353 20 20.48661 0.833 23.02802 0.833 20.5 10.5 0.458333 19.03881 0.458333 20.53632 19.18173 0.541667 0.583333 0.333333 0.3333331986 19.18173 21 21.1639 0.875 23.6556 0.875 21.5 11 0.458333 19.11338 0.458333 20.67302 19.5297 0.583333 0.625 0.333333 0.3333331987 19.03881 22 21.28818 0.917 23.6991 0.917 22.5 11.5 0.5 19.11338 0.5 20.67302 19.70368 0.625 0.666667 0.333333 0.3333331988 23.37598 23 21.32546 0.958 23.75502 0.958 23.5 12 0.5 19.11959 0.5 20.82215 19.76582 0.666667 0.708333 0.333333 0.333333 1989 15.55913 24 23.37598 1.000 26.42692 1.000 24.5 12.5 0.541667 19.11959 0.541667 20.82215 20.08272 0.708333 0.708333 0.333333 0.3751990 18.74677 13 0.541667 19.18173 0.541667 20.92157 20.27534 0.708333 0.75 0.375 0.3751991 20.67302 13.5 0.583333 19.18173 0.583333 20.92157 20.31262 0.75 0.75 0.375 0.4166671992 17.09392 14 0.583333 19.5297 0.583333 20.97749 20.31884 0.75 0.791667 0.416667 0.4166672002 21.78527 14.5 0.625 19.5297 0.625 20.97749 20.38719 0.791667 0.833333 0.416667 0.4166672003 18.97668 15 0.625 19.70368 0.625 21.28818 20.48661 0.833333 0.875 0.416667 0.4166672004 20.82215 15.5 0.666667 19.70368 0.666667 21.28818 20.53632 0.875 0.875 0.416667 0.4583332005 21.28818 16 0.666667 19.76582 0.666667 21.5243 20.67302 0.875 0.875 0.458333 0.52006 20.92157 16.5 0.708333 19.76582 0.708333 21.5243 20.82215 0.875 0.875 0.5 0.5416672007 18.31802 17 0.708333 20.27534 0.708333 21.72314 20.92157 0.875 0.875 0.541667 0.5833332008 20.97749 17.5 0.75 20.27534 0.75 21.72314 20.97749 0.875 0.875 0.583333 0.6252009 20.31262 18 0.75 20.31884 0.75 21.78527 21.1639 0.875 0.916667 0.625 0.6252010 23.02802 18.5 0.791667 20.31884 0.791667 21.78527 21.28818 0.916667 0.958333 0.625 0.6666672011 23.6556 19 0.791667 20.38719 0.791667 22.81675 21.28818 0.916667 0.958333 0.625 0.6666672012 18.61628 19.5 0.833333 20.38719 0.833333 22.81675 21.32546 0.958333 1 0.666667 0.6666672013 18.74056 20 0.833333 20.48661 0.833333 23.02802 21.5243 1 1 0.666667 0.7083332014 23.6991 20.5 0.875 20.48661 0.875 23.02802 21.72314 1 1 0.708333 0.752015 26.42692 21 0.875 21.1639 0.875 23.6556 21.78527 1 1 0.75 0.7916672016 23.75502 21.5 0.916667 21.1639 0.916667 23.6556 22.81675 1 1 0.791667 0.8333332017 20.53632 22 0.916667 21.28818 0.916667 23.6991 23.02802 1 1 0.833333 0.8752018 20.08272 22.5 0.958333 21.28818 0.958333 23.6991 23.37598 1 1 0.875 0.8752019 21.72314 23 0.958333 21.32546 0.958333 23.75502 23.6556 1 1 0.875 0.9166672020 18.44851 23.5 1 21.32546 1 23.75502 23.6991 1 1 0.916667 0.9583332021 22.81675 24 1 23.37598 1 26.42692 23.75502 1 1 0.958333 12022 21.5243 24.5 1 23.37598 1 26.42692 26.42692 1 1 1 1 USACE RMC-TR-2021-02 (PDF p17):
0 0.10.20.30.40.50.60.70.80.9
1 0 5 10 15 20 25 30
Step-Wise Cumulative Distribution Functions Sample 1 Sample 2 X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Mather (MHR).xlsm X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Mather (MHR).xlsm y = 0.0464x - 72.39
R² = 0.1646
y = 0.046x - 71.674
R² = 0.1403
05 1015202530
1960 1970 1980 1990 2000 2010 2020 2030
Peak Annual 2-minute Observed Wind Speed, Averages of All Wind Directions (mph) Year
Mean Median Historical Trend of Average Annual Peak Wind Speeds X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Mather (MHR).xlsm y = 0.0000x + 21.5250
R² = 0.0000
y = -0.0005x + 22.2409
R² = 0.0000
05 1015202530
1960 1970 1980 1990 2000 2010 2020 2030
Peak Annual 2-minute Observed Wind Speed, Averages of All Wind Directions (mph) Year
Mean Median Detrended (to 2023) Average Annual Peak Wind Speeds

3.3 – Design Wind Speed Analysis for Sacramento Executive Airport (SAC) GEV Frequency Plots of Observed 2-min Wind Speed (mph)
y = 4.4079x + 18.937
R² = 0.9943
0 10
20 30
40 -2 0 2 4
360
y = 4.1659x + 13.764
R² = 0.9956
0 5
10 15
20 25
30 -2 0 2 4
10 y = 3.9597x + 11.403
R² = 0.9892
0 10
20 30
40 -5 0 5
20 y = 3.3286x + 8.8235
R² = 0.9899
0 5
10 15
20 25
30 -5 0 5 10
30 y = 2.7356x + 7.7945
R² = 0.9812
0 5
10 15
20 25
-5 0 5
40 y = 2.803x + 6.7987
R² = 0.9912
0 5
10 15
20 -2 0 2 4
50 y = 1.852x + 6.749
R² = 0.9631
0 5
10 15
20 -5 0 5 10
60 y = 2.5375x + 7.0208
R² = 0.9792
0 5
10 15
20 -2 0 2 4
70 y = 2.5363x + 8.0401
R² = 0.9881
0 5
10 15
20 -2 0 2 4
80 y = 2.6276x + 8.7911
R² = 0.9857
0 5
10 15
20 25
30 -5 0 5 10
90 y = 3.2527x + 9.7873
R² = 0.986 0
5 10
15 20
25 -2 0 2 4
100
y = 3.4664x + 10.931
R² = 0.9864
0 5
10 15
20 25
-2 0 2 4
110
y = 4.4097x + 14.573
R² = 0.9843
0 10
20 30
40 -5 0 5
120
y = 4.8579x + 18.271
R² = 0.9216
0 10
20 30
40 50
-2 0 2 4 6
130
y = 5.0765x + 23.409
R² = 0.9774
0 10
20 30
40 50
-2 0 2 4
140
y = 5.3085x + 23.54
R² = 0.9926
0 10
20 30
40 50
-2 0 2 4
150
y = 4.5544x + 21.752
R² = 0.9886
0 10
20 30
40 -2 0 2 4
160
y = 3.7242x + 18.032
R² = 0.9831
0 10
20 30
40 -2 0 2 4
170
y = 2.8487x + 16.412
R² = 0.9825
0 5
10 15
20 25
30 -5 0 5
180
y = 2.9058x + 17.233
R² = 0.9719
0 5
10 15
20 25
30 -2 0 2 4
190
y = 2.8717x + 18.809
R² = 0.9904
0 10
20 30
40 -5 0 5
200
y = 2.5117x + 20.503
R² = 0.9936
0 10
20 30
40 -5 0 5
210
y = 1.6446x + 21.768
R² = 0.9776
0 10
20 30
40 -5 0 5 10
220
y = 1.753x + 20.817
R² = 0.9745
0 10
20 30
40 -5 0 5 10
230
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac Executive (SAC).xlsm GEV Frequency Plots of Observed 2-min Wind Speed (mph)
y = 2.5492x + 19.167
R² = 0.9795
0 5
10 15
20 25
30 -2 0 2 4
240
y = 3.0936x + 15.833
R² = 0.9885
0 5
10 15
20 25
-2 0 2 4
250
y = 3.6177x + 14.293
R² = 0.9556
0 5
10 15
20 25
30 -2 0 2 4 6
260
y = 3.2529x + 13.075
R² = 0.9931
0 5
10 15
20 25
30 -2 0 2 4
270
y = 2.6755x + 12.669
R² = 0.994
0 5
10 15
20 25
30 -2 0 2 4 6
280
y = 3.4172x + 14.531
R² = 0.9835 0
5 10
15 20
25 30
-2 0 2 4
290
y = 3.8557x + 16.116
R² = 0.9543
0 10
20 30
40 -2 0 2 4
300
y = 4.1088x + 20.493
R² = 0.9538
0 10
20 30
40 -4 -2 0 2 4
310
y = 3.9492x + 23.538
R² = 0.991 0
10 20
30 40
-2 0 2 4
320
y = 3.2274x + 25.682
R² = 0.9738 0
10 20
30 40
-2 0 2 4
330
y = 3.2568x + 25.419
R² = 0.9824 0
10 20
30 40
-2 0 2 4
340
y = 2.7162x + 22.517
R² = 0.9711 0
10 20
30 40
-5 0 5 10
350
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac Executive (SAC).xlsm Year 360 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 Mean Max Median 1948 33 0 31 0 0 15 0 15 0 20 0 15 0 0 32 0 47 0 35 0 25 0 0 28 0 24 0 20 0 17 0 0 25 0 28 0 11 47 0 1949 35 0 35 0 0 20 0 17 0 16 0 15 0 0 40 0 45 0 31 0 28 0 0 29 0 24 0 20 0 16 0 0 30 0 33 0 12 45 0 1950 28 0 20 0 0 13 0 12 0 18 0 18 0 0 49 0 55 0 40 0 32 0 0 40 0 25 0 25 0 22 0 0 28 0 29 0 13 55 0 1951 31 0 15 0 0 26 0 14 0 16 0 20 0 0 43 0 55 0 37 0 29 0 0 36 0 30 0 23 0 23 0 0 24 0 30 0 13 55 0 1952 30 0 29 0 0 13 0 15 0 20 0 25 0 0 58 0 55 0 36 0 35 0 0 36 0 30 0 25 0 24 0 0 24 0 32 0 14 58 0 1953 40 0 31 0 0 17 0 12 0 18 0 23 0 0 41 0 41 0 26 0 25 0 0 30 0 35 0 23 0 26 0 0 32 0 43 0 13 43 0 1954 23 0 14 0 0 10 0 17 0 20 0 35 0 0 47 0 38 0 35 0 30 0 0 32 0 20 0 20 0 26 0 0 38 0 33 0 12 47 0 1955 26 0 31 0 0 17 0 14 0 20 0 20 0 0 39 0 43 0 29 0 28 0 0 31 0 23 0 23 0 22 0 0 40 0 32 0 12 43 0 1956 28 0 23 0 0 12 0 16 0 16 0 17 0 0 35 0 46 0 25 0 29 0 0 30 0 28 0 23 0 21 0 0 28 0 29 0 11 46 0 1957 29 0 20 0 0 17 0 21 0 20 0 25 0 0 26 0 35 0 28 0 26 0 0 31 0 26 0 18 0 17 0 0 29 0 35 0 11 35 0 1958 25 0 17 0 0 13 0 21 0 18 0 22 0 0 32 0 40 0 32 0 26 0 0 29 0 22 0 16 0 17 0 0 23 0 28 0 11 40 0 1959 30 0 32 0 0 15 0 12 0 13 0 18 0 0 48 0 46 0 26 0 28 0 0 28 0 23 0 14 0 23 0 0 29 0 32 0 12 48 0 1960 26 0 15 0 0 10 0 12 0 15 0 26 0 0 44 0 25 0 23 0 25 0 0 38 0 23 0 16 0 22 0 0 30 0 30 0 11 44 0 1961 32 0 17 0 0 16 0 17 0 12 0 17 0 0 22 0 20 0 17 0 26 0 0 26 0 23 0 20 0 21 0 0 25 0 32 0 10 32 0 1962 23 0 9 0 0 9 0 9 0 12 0 16 0 0 26 0 29 0 24 0 28 0 0 32 0 25 0 16 0 17 0 0 25 0 28 0 9 32 0 1963 24 0 12 0 0 7 0 8 0 8 0 12 0 0 23 0 29 0 23 0 25 0 0 23 0 21 0 16 0 23 0 0 28 0 31 0 9 31 0 1964 23 17 18 12 7 7 8 7 10 10 12 12 23 17 23 23 29 23 21 24 28 28 29 24 28 18 17 21 13 20 18 22 24 26 26 29 19 29 21 1965 26 16 12 14 8 5 6 6 6 9 7 9 9 12 29 22 22 20 18 17 21 26 21 21 21 17 12 12 12 15 16 16 21 33 30 28 16 33 16 1966 22 9 10 17 9 5 9 6 10 7 9 9 16 17 31 24 33 17 17 17 25 25 30 20 20 14 17 14 16 9 10 14 21 31 28 28 17 33 17 1967 25 21 29 8 13 7 7 7 8 9 9 9 14 13 46 23 29 32 20 21 17 20 24 20 17 17 10 17 10 13 9 16 18 26 28 21 18 46 17 1968 21 16 17 7 7 7 3 7 7 12 9 12 13 8 22 23 29 18 16 22 21 21 28 21 20 17 12 13 14 21 15 12 24 23 25 25 16 29 17 1969 30 20 12 6 15 6 9 6 7 7 13 12 29 22 23 21 35 18 17 16 21 23 29 23 20 16 18 13 10 17 14 21 18 23 28 23 18 35 18 1970 29 14 17 9 7 5 9 8 7 7 12 8 17 21 23 21 18 17 17 30 24 25 23 23 17 13 8 9 14 13 16 21 28 29 26 22 17 30 17 1971 21 9 12 6 8 9 8 6 7 10 8 8 14 21 29 18 23 14 18 18 23 23 22 29 21 15 12 12 15 13 14 29 26 24 29 23 17 29 15 1972 18 13 7 7 7 6 8 7 9 10 10 12 17 16 23 20 18 17 17 20 25 23 23 25 23 13 14 15 12 17 14 28 23 29 30 23 17 30 17 1973 21 11 16 11 10 10 8 8 10 29 21 14 17 25 29 25 25 21 17 23 21 23 24 24 28 14 17 12 23 17 16 19 25 25 25 39 20 39 21 1974 25 18 9 7 9 7 8 8 7 14 17 12 20 28 23 39 26 34 22 22 21 21 26 23 16 18 11 10 14 15 21 23 32 31 32 28 19 39 20 1975 23 10 26 10 7 7 9 8 9 9 21 15 32 46 25 38 26 23 23 29 23 28 25 21 20 14 29 17 21 21 21 29 34 32 30 28 22 46 23 1976 18 14 14 9 11 11 10 13 9 16 17 17 18 17 18 17 23 24 18 23 23 23 28 28 21 21 17 17 16 13 28 28 29 28 23 23 19 29 18 1977 26 14 10 11 9 14 10 8 11 11 10 21 30 29 25 29 24 25 24 23 25 22 23 22 19 20 23 21 25 23 25 26 31 23 21 23 20 31 23 1978 19 16 9 9 13 12 9 11 8 14 11 19 25 34 32 40 35 25 29 21 21 21 34 25 18 15 14 13 15 23 21 25 29 39 28 22 21 40 21 1979 19 12 11 14 9 12 9 9 9 9 14 13 16 28 34 29 28 22 25 23 21 25 24 21 21 23 20 14 16 16 17 19 28 28 26 21 19 34 20 1980 25 17 13 16 11 9 9 13 8 9 11 16 21 25 30 32 29 26 22 22 22 28 24 22 28 14 17 14 16 16 21 23 32 29 28 23 20 32 21 1981 18 13 13 14 15 12 10 12 12 12 14 17 16 20 28 29 23 23 17 21 21 23 23 28 21 15 16 15 14 18 16 21 23 30 31 23 19 31 18 1982 13 17 16 9 12 7 12 9 8 17 17 14 18 21 35 32 28 25 18 22 18 21 23 23 22 21 30 15 14 20 17 20 23 29 25 22 19 35 19 1983 17 12 18 16 8 16 9 15 13 12 14 17 21 23 32 28 29 28 24 21 26 28 26 22 23 17 18 18 20 21 20 23 23 25 21 21 20 32 21 1984 21 24 24 10 17 14 9 10 12 17 17 12 17 25 30 24 23 23 20 17 30 21 28 21 20 21 16 18 16 17 23 24 26 30 31 25 20 31 21 1985 21 15 17 12 8 7 9 12 10 9 12 13 15 17 29 29 28 25 23 22 21 25 28 20 20 16 17 14 14 17 23 25 28 28 29 23 19 29 18 1986 18 12 15 10 7 7 7 9 9 12 16 13 21 26 32 32 32 21 23 25 29 26 23 21 18 15 18 17 18 25 21 23 25 23 23 23 19 32 21 1987 23 18 15 17 12 7 9 13 14 16 12 12 25 23 29 32 23 23 21 20 21 26 21 25 23 16 23 13 20 16 17 23 28 29 29 28 20 32 21 1988 28 21 14 29 13 17 20 13 9 10 15 16 17 23 31 29 23 17 29 21 21 26 23 23 21 20 18 21 17 17 23 33 31 32 36 32 22 36 21 1989 15 15 10 10 10 12 8 13 14 12 12 14 17 25 24 21 21 21 21 23 25 32 25 23 21 16 20 17 15 21 23 23 23 25 25 23 19 32 21 1990 23 16 18 17 12 9 7 8 8 12 15 10 17 17 21 28 29 18 17 21 23 22 23 23 20 17 18 21 16 17 17 22 23 25 25 25 18 29 18 1991 21 21 13 12 10 12 14 9 9 17 12 21 23 22 25 29 29 25 21 18 23 24 24 25 23 20 18 16 15 17 21 23 23 28 31 25 20 31 21 1992 16 14 12 17 12 15 14 11 12 17 17 21 29 20 26 30 23 23 20 21 25 21 23 23 23 18 17 17 17 17 22 25 28 29 28 25 20 30 20 1993 31 15 18 10 14 9 15 8 8 9 15 16 25 21 29 26 21 23 21 20 21 23 23 23 23 23 17 16 15 15 21 20 23 28 24 21 19 31 21 1994 21 14 13 13 9 10 8 8 17 22 17 9 14 17 21 20 18 17 17 18 23 30 21 22 21 17 14 15 13 15 17 25 22 28 23 26 18 30 17 1995 12 16 23 8 12 17 8 7 12 14 13 23 23 25 38 35 29 21 21 17 21 23 23 21 20 15 15 12 10 14 20 23 23 28 25 23 19 38 20 1996 21 14 21 14 17 8 9 7 9 12 17 18 25 25 25 25 24 23 21 21 32 23 23 23 21 23 17 21 21 25 32 29 31 29 30 21 21 32 21 1997 22 23 18 14 15 7 13 11 16 17 17 20 29 25 25 24 23 18 23 22 24 29 23 20 17 17 16 17 18 23 28 29 32 32 25 29 21 32 22 1998 14 13 12 13 8 9 8 14 10 14 21 23 35 25 25 24 25 17 17 23 23 21 22 24 22 16 14 16 17 20 21 24 30 32 29 26 20 35 21 1999 23 25 18 9 6 6 12 8 10 13 10 14 15 18 24 25 18 22 18 16 25 21 22 26 17 17 17 19 21 15 17 23 25 26 25 26 18 26 18 2000 21 16 12 7 8 8 8 9 9 9 14 15 17 22 23 26 20 21 16 23 20 25 25 22 20 18 16 9 15 17 15 26 33 31 29 32 18 33 18 2001 23 24 14 21 17 9 8 6 9 14 12 13 21 25 29 29 26 25 17 17 23 20 23 24 18 16 16 13 14 17 22 22 26 31 31 25 19 31 20 2002 26 22 8 8 7 9 7 9 8 12 13 11 13 20 22 33 29 22 16 17 20 20 22 21 21 20 25 13 15 17 21 26 28 23 28 20 18 33 20 2003 17 12 13 10 9 7 10 9 10 9 10 14 12 31 32 25 22 18 16 18 17 20 23 22 22 20 18 13 13 12 20 24 22 24 23 25 17 32 18 2004 18 18 20 18 7 8 8 6 13 9 9 10 16 24 36 29 28 26 22 15 18 20 22 23 22 17 12 15 14 11 18 22 26 31 31 24 19 36 18 2005 22 20 18 14 8 9 8 8 9 9 10 20 17 20 23 26 26 20 16 17 18 22 22 24 22 20 26 14 10 17 17 20 21 23 24 21 18 26 20 2006 17 15 9 10 7 10 11 13 13 20 9 10 13 21 34 26 29 19 18 15 17 24 26 22 22 19 16 13 17 15 16 19 26 36 26 21 18 36 17 2007 21 17 11 9 8 8 10 8 10 9 11 11 10 17 17 21 15 17 17 20 21 20 22 25 22 18 16 23 14 13 20 21 24 26 26 24 17 26 17 2008 29 11 11 8 10 7 7 10 9 7 7 11 15 23 36 33 25 17 22 16 21 21 24 32 18 20 14 16 13 17 21 23 29 32 30 26 19 36 18 2009 15 16 9 8 10 7 8 8 13 8 9 16 17 28 24 30 22 20 13 15 17 20 20 23 23 14 14 13 16 20 22 24 29 28 31 25 18 31 17 2010 16 14 9 10 7 6 10 14 10 10 7 13 14 21 28 33 29 28 14 14 17 20 22 22 22 23 21 15 16 17 17 18 22 25 28 22 18 33 17 2011 21 18 16 10 10 8 7 7 16 10 13 11 13 20 28 29 24 18 18 17 22 18 24 21 21 22 18 18 11 16 20 20 26 28 31 26 18 31 18 2012 15 14 11 8 7 8 9 5 15 6 13 11 20 24 23 23 20 18 15 14 22 22 21 22 23 20 16 14 11 14 14 23 29 30 30 26 17 30 16 2013 24 20 10 10 18 10 6 5 7 7 7 8 10 14 13 17 16 11 13 15 17 23 23 22 22 20 18 16 11 16 16 20 29 30 26 24 16 30 16 2014 25 26 20 20 14 6 6 7 13 11 8 13 17 22 21 21 17 16 14 14 15 17 22 23 18 15 13 15 13 13 14 18 18 23 26 24 17 26 17 2015 22 17 11 13 15 10 5 7 7 9 8 8 16 14 17 22 18 20 13 16 16 22 23 20 25 20 16 18 14 15 16 23 25 23 24 24 16 25 16 2016 25 22 11 9 8 5 6 11 7 10 8 11 16 16 23 28 24 16 22 21 18 18 21 21 25 15 20 11 15 15 15 23 23 30 25 26 17 30 17 2017 18 15 10 8 7 7 5 11 9 8 10 9 14 24 26 28 23 18 16 22 16 17 21 23 23 21 18 24 17 22 15 23 25 30 32 25 18 32 18 2018 23 10 14 10 10 13 10 9 9 8 7 11 14 16 23 24 21 16 17 15 17 23 23 22 18 23 20 18 14 22 14 25 26 24 25 25 17 26 17 2019 24 20 9 25 18 11 11 13 14 15 9 13 15 24 31 30 21 17 16 20 17 23 25 22 22 18 17 18 11 11 20 20 28 28 36 29 20 36 19 2020 20 17 14 16 9 14 6 9 14 9 8 9 13 15 21 16 16 13 15 17 17 20 23 24 25 18 15 14 11 14 20 20 23 24 28 29 17 29 16 2021 25 24 21 9 6 10 8 6 8 13 11 16 10 23 31 31 24 22 16 16 15 21 22 23 22 16 11 11 11 13 18 21 25 29 29 31 18 31 17 2022 22 20 25 20 8 9 9 7 14 10 14 16 13 20 23 22 18 15 15 18 20 21 24 21 20 20 20 14 15 21 21 25 24 28 31 28 19 31 20 Detrend year:

Average adjustment for annual peak wind speed values based on linear trendline, to 2023 = -0.6 mph -0.9 mph Slope = -0.02 mph/year -0.029 mph/year
vvv Wind speeds reported at
10-degree intervals after
1964.
2-min Annual Peak Wind Speed by Direction
^^^ Wind speeds reported at

22.5-degree intervals prior to
1964.

X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac Executive (SAC).xlsm Year 360 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 Mean Max Median 1964 21 15 17 10 5 5 6 5 9 9 10 10 21 15 21 21 27 21 19 22 26 26 27 22 26 17 15 19 11 18 17 20 22 25 25 27 18 27 19 1965 25 14 10 12 6 3 4 4 4 7 5 7 7 10 27 20 20 18 17 16 19 25 19 19 19 16 10 10 10 13 14 14 19 32 28 26 15 32 14 1966 20 7 9 16 7 3 7 4 9 5 7 7 14 16 29 22 32 16 16 16 24 24 28 18 18 12 16 12 14 7 9 12 19 29 26 26 16 32 16 1967 24 19 27 6 11 5 5 5 6 8 8 8 12 11 44 21 27 31 18 19 16 18 23 18 16 16 9 16 9 11 8 14 17 25 26 19 16 44 16 1968 19 14 16 5 5 5 2 5 5 10 8 10 11 6 20 21 27 17 14 20 19 19 26 19 18 16 10 11 12 19 13 10 23 21 24 24 15 27 15 1969 28 18 10 4 13 4 8 4 5 5 11 10 27 20 21 19 33 17 16 15 19 21 27 21 18 15 17 11 9 16 12 19 17 21 26 21 16 33 17 1970 27 12 16 8 5 3 8 6 5 5 10 6 16 19 21 19 17 16 16 28 23 24 21 21 16 11 6 8 12 11 15 19 26 27 25 20 15 28 16 1971 19 8 10 4 7 8 7 4 5 9 7 7 12 19 27 17 22 12 17 17 22 22 20 27 19 13 10 10 13 11 12 27 25 23 27 22 15 27 13 1972 17 11 5 5 5 4 7 5 8 9 9 10 16 15 22 18 17 16 16 18 24 22 22 24 22 11 12 13 10 16 12 26 22 27 28 22 15 28 16 1973 19 10 15 10 9 9 7 7 9 27 19 12 16 24 27 24 24 19 16 22 19 22 23 23 26 12 16 10 21 16 15 18 24 24 24 38 18 38 19 1974 24 17 8 5 8 5 7 7 5 12 16 10 18 26 21 38 25 33 20 20 19 19 25 22 15 17 10 9 12 13 19 21 31 29 31 26 18 38 19 1975 22 9 25 9 6 5 8 7 8 8 19 13 31 44 24 36 25 22 21 27 21 26 24 19 18 12 27 16 19 19 19 27 33 31 28 26 20 44 21 1976 17 12 12 8 10 10 9 11 8 15 16 16 17 16 17 16 22 23 17 21 22 22 26 26 19 19 16 16 15 11 26 26 27 26 22 21 18 27 17 1977 25 12 9 10 8 13 9 7 10 10 9 19 28 28 24 28 23 24 23 22 24 21 21 20 18 18 21 19 24 21 24 25 30 21 19 21 19 30 21 1978 18 15 8 8 11 10 8 10 7 12 10 18 24 33 31 39 33 24 27 19 19 19 33 24 17 14 12 11 13 21 19 24 28 38 26 20 20 39 19 1979 18 10 10 12 8 10 8 8 8 8 13 11 15 26 33 28 26 21 24 22 19 24 23 19 20 22 18 13 15 15 16 18 26 26 25 20 18 33 18 1980 24 16 11 15 10 8 8 11 7 8 10 15 19 24 28 31 27 25 20 20 21 26 23 20 26 12 16 13 15 15 20 22 31 28 26 22 19 31 20 1981 17 12 12 13 14 10 9 10 10 10 13 16 15 18 27 28 22 22 16 20 20 22 22 27 20 14 15 14 13 17 15 20 22 29 30 22 18 30 17 1982 12 16 15 8 10 6 10 8 7 16 16 13 17 20 33 31 27 24 17 21 17 20 22 22 21 20 29 14 13 18 16 18 22 28 24 21 18 33 18 1983 16 10 17 15 7 15 8 14 12 10 13 16 20 22 31 26 28 26 23 20 25 27 25 21 22 16 17 17 19 20 19 22 22 24 20 20 19 31 20 1984 20 23 23 9 16 13 8 9 10 16 16 10 16 24 29 23 22 22 19 16 29 20 27 20 19 20 15 17 15 16 22 23 25 29 30 24 19 30 20 1985 20 14 16 11 7 6 8 11 9 8 11 12 14 16 28 28 27 24 22 21 20 24 27 19 19 15 16 13 13 16 22 24 27 27 28 22 18 28 17 1986 17 11 14 9 6 6 6 8 8 11 15 12 20 25 31 31 31 20 22 24 28 25 22 20 17 14 17 16 17 24 20 22 24 22 22 22 18 31 20 1987 22 17 14 16 11 6 8 12 13 15 11 11 24 22 28 31 22 22 20 19 20 25 20 24 22 15 22 12 19 15 16 22 27 28 28 27 19 31 20 1988 27 20 13 28 12 16 19 12 8 9 14 15 16 22 30 28 22 16 28 20 20 25 22 22 20 19 17 20 16 16 22 32 30 31 35 31 21 35 20 1989 14 14 9 9 9 11 7 12 13 11 11 13 16 24 23 20 20 20 20 22 24 31 24 22 20 15 19 16 14 20 22 22 22 24 24 22 18 31 20 1990 22 15 17 16 11 8 6 7 7 11 14 9 16 16 20 27 28 17 16 20 22 21 22 22 19 16 17 20 15 16 16 21 22 24 24 24 17 28 17 1991 20 20 12 11 9 11 13 8 8 16 11 20 22 21 24 28 28 24 20 17 22 23 23 24 22 19 17 15 14 16 20 22 22 27 30 24 19 30 20 1992 15 13 11 16 11 14 13 10 11 16 16 20 28 19 25 29 22 22 19 20 24 20 22 22 22 17 16 16 16 16 21 24 27 28 27 24 19 29 19 1993 30 14 17 9 13 8 14 7 7 8 14 15 24 20 28 26 20 22 20 19 20 22 22 22 22 22 16 15 14 14 20 19 22 27 23 20 18 30 20 1994 20 13 12 12 8 9 7 7 16 21 16 8 13 16 20 19 17 16 16 17 22 29 20 21 20 16 13 14 12 14 16 24 21 27 22 26 17 29 16 1995 11 15 22 7 11 16 7 6 11 13 12 22 22 24 37 34 28 20 20 16 20 22 22 20 19 14 14 11 9 13 19 22 22 27 24 22 18 37 19 1996 20 13 20 13 16 7 8 6 8 11 16 18 24 24 24 24 23 22 20 20 31 22 22 22 20 22 16 20 20 24 31 28 30 28 29 20 20 31 20 1997 21 22 18 13 14 6 12 11 15 16 16 19 28 25 25 23 22 18 22 21 23 28 22 19 16 16 15 16 18 22 27 28 31 31 25 28 20 31 21 1998 13 12 11 12 7 8 7 13 10 13 20 22 34 25 25 23 25 16 16 22 22 20 21 23 21 15 13 15 16 19 20 23 29 31 28 26 19 34 20 1999 22 25 18 8 5 5 11 7 10 12 10 13 14 18 23 25 18 21 18 15 25 20 21 26 17 17 17 19 20 14 17 22 25 26 25 26 18 26 18 2000 20 15 11 6 7 7 7 8 8 8 13 14 17 21 22 26 19 20 15 22 19 25 25 21 19 18 15 8 14 17 14 26 33 30 28 32 18 33 17 2001 22 24 13 20 17 9 7 5 9 13 11 12 20 25 28 28 26 25 17 17 22 19 22 24 18 15 15 12 13 17 21 21 26 30 30 25 19 30 20 2002 26 21 7 7 6 9 6 9 7 11 12 11 12 19 21 33 28 21 15 17 19 19 21 20 20 19 25 12 14 17 20 26 27 22 27 19 17 33 19 2003 17 11 12 10 9 6 10 9 10 9 10 13 11 31 32 25 21 18 16 18 17 19 22 21 21 19 18 12 12 11 19 24 21 24 22 25 17 32 17 2004 18 18 19 18 6 7 7 5 12 9 9 10 16 24 35 28 27 26 21 14 18 19 21 22 21 17 11 14 13 11 18 21 26 31 31 24 18 35 18 2005 21 19 18 13 8 9 8 8 9 9 10 19 17 19 23 26 26 19 16 17 18 21 21 24 21 19 26 13 10 17 17 19 20 23 24 20 17 26 19 2006 17 14 9 10 6 10 11 12 12 19 9 10 12 20 34 26 28 19 18 14 17 23 26 21 21 19 15 12 17 14 15 19 26 35 26 20 18 35 17 2007 20 17 11 9 8 8 10 8 10 9 11 11 10 17 17 20 15 17 17 19 20 19 21 25 21 18 16 23 13 12 19 20 24 26 26 24 16 26 17 2008 28 11 11 8 10 6 6 10 9 6 6 11 15 23 35 33 25 17 21 16 20 20 24 32 18 19 13 16 12 17 20 23 28 32 30 26 18 35 17 2009 15 16 9 8 10 7 8 8 12 8 9 16 17 27 24 30 22 19 12 15 17 19 19 23 23 13 13 12 16 19 22 24 28 27 31 25 17 31 16 2010 16 13 9 10 7 5 10 13 10 10 7 12 13 20 27 33 28 27 13 13 17 19 22 22 22 23 20 15 16 17 17 18 22 25 27 22 17 33 17 2011 20 18 16 10 10 8 7 7 16 10 12 11 12 19 27 29 24 18 18 17 22 18 24 20 20 22 18 18 11 16 19 19 26 27 31 26 18 31 18 2012 15 14 11 8 7 8 9 4 15 5 12 11 19 24 23 23 19 18 15 14 22 22 20 22 23 19 16 14 11 14 14 23 29 30 30 26 17 30 15 2013 24 19 10 10 18 10 6 4 7 7 7 8 10 14 12 17 16 11 12 15 17 23 23 22 22 19 18 16 11 16 16 19 29 30 26 24 16 30 16 2014 25 26 19 19 14 6 6 7 12 11 8 12 17 22 21 21 17 16 14 14 15 17 22 23 18 15 12 15 12 12 14 18 18 23 26 24 16 26 16 2015 22 17 11 13 15 10 4 7 7 9 8 8 16 14 17 22 18 19 13 16 16 22 23 19 25 19 16 18 14 15 16 23 25 23 24 24 16 25 16 2016 25 22 11 9 8 4 6 11 7 10 8 11 16 16 23 28 24 16 22 21 18 18 21 21 25 15 19 11 15 15 15 23 23 30 25 26 17 30 17 2017 18 15 10 8 7 7 5 11 9 8 10 9 14 24 26 28 23 18 16 22 16 17 21 23 23 21 18 24 17 22 15 23 25 30 32 25 18 32 18 2018 23 10 14 10 10 13 10 9 9 8 7 11 14 16 23 24 21 16 17 15 17 23 23 22 18 23 20 18 14 22 14 25 26 24 25 25 17 26 17 2019 24 20 9 25 18 11 11 13 14 15 9 13 15 24 31 30 21 17 16 20 17 23 25 22 22 18 17 18 11 11 20 20 28 28 36 29 19 36 19 2020 20 17 14 16 9 14 6 9 14 9 8 9 13 15 21 16 16 13 15 17 17 20 23 24 25 18 15 14 11 14 20 20 23 24 28 29 16 29 16 2021 25 24 21 9 6 10 8 6 8 13 11 16 10 23 31 31 24 22 16 16 15 21 22 23 22 16 11 11 11 13 18 21 25 29 29 31 18 31 17 2022 22 20 25 20 8 9 9 7 14 10 14 16 13 20 23 22 18 15 15 18 20 21 24 21 20 20 20 14 15 21 21 25 24 28 31 28 19 31 20 2023
DETRENDED --- 2-min Annual Peak Wind Speed by Direction X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac Executive (SAC).xlsm Calculate Kolmogorov-Smirnov (K-S) Test for various levels of significance, to evaluate the likelihood of non-stationarity in wind speeds.

Sample data is based on the median value (of all wind directions) of annual maximums (for each wind direction).

Count Mean Std Dev
Total 59 18.8 1.9
Sample 1 30 19.4 2.0Sample 2 29 18.2 1.6 Maximum Difference, Dn,m = 0.42 Combine
39 Sample 1 Sample 2 Sample 1 Sample 2 Unique Sample 1 Sample 2 Significance Year U (mph) Value Cum Freq Value Cum Freq Half-Rank Stepwise Cum Freq Value Cum Freq Value Values RankMin RankMax RankMin RankMax Level K-S Dtest Result Explanation 1964 20.80351 1 14.98747 0.033 15.54671 0.034 1.5 1 0.033333 14.98747 0.034483 15.54671 14.98747 0.033333 0.066667 0.034483 0.034483 10% 0.22 Reject Ho 1965 16.10594 2 16.10594 0.067 16.10594 0.069 2.5 1.5 0.066667 14.98747 0.068966 15.54671 15.54671 0.066667 0.066667 0.034483 0.068966 50% 0.27 Reject Ho 1966 17.22441 3 16.66518 0.100 16.10594 0.103 3.5 2 0.066667 16.10594 0.068966 16.10594 16.10594 0.066667 0.1 0.068966 0.172414 75% 0.31 Reject Ho1967 17.22441 4 17.22441 0.133 16.10594 0.138 4.5 2.5 0.1 16.10594 0.103448 16.10594 16.66518 0.1 0.133333 0.172414 0.241379 90% 0.35 Reject Ho 1968 16.66518 5 17.22441 0.167 16.66518 0.172 5.5 3 0.1 16.66518 0.103448 16.10594 17.22441 0.133333 0.266667 0.241379 0.482759 95% 0.39 Reject Ho With 95% significance, the samples come from different population distributions. 1969 18.34288 6 17.22441 0.200 16.66518 0.207 6.5 3.5 0.133333 16.66518 0.137931 16.10594 17.78364 0.266667 0.3 0.482759 0.586207 99.9% 0.53 Accept Ho Null hypothesis cannot be rejected at the 99.9% significance level. (Population distributions assumed equal) 1970 17.22441 7 17.22441 0.233 17.22441 0.241 7.5 4 0.133333 17.22441 0.137931 16.10594 18.34288 0.3 0.4 0.586207 0.7241381971 14.98747 8 17.78364 0.267 17.22441 0.276 8.5 4.5 0.166667 17.22441 0.172414 16.10594 18.45472 0.4 0.433333 0.724138 0.724138 1972 17.22441 9 18.34288 0.300 17.22441 0.310 9.5 5 0.166667 17.22441 0.172414 16.66518 19.01396 0.433333 0.466667 0.724138 0.758621 1973 20.57981 10 18.34288 0.333 17.22441 0.345 10.5 5.5 0.2 17.22441 0.206897 16.66518 19.57319 0.466667 0.5 0.758621 0.7586211974 20.13243 11 18.34288 0.367 17.22441 0.379 11.5 6 0.2 17.22441 0.206897 16.66518 19.68504 0.5 0.5 0.758621 0.8620691975 22.81675 12 18.45472 0.400 17.22441 0.414 12.5 6.5 0.233333 17.22441 0.241379 16.66518 20.13243 0.5 0.533333 0.862069 0.862069 1976 18.34288 13 19.01396 0.433 17.22441 0.448 13.5 7 0.233333 17.22441 0.241379 17.22441 20.24427 0.533333 0.566667 0.862069 0.931034 1977 22.81675 14 19.57319 0.467 17.78364 0.483 14.5 7.5 0.266667 17.22441 0.275862 17.22441 20.57981 0.566667 0.6 0.931034 0.931034 1978 20.80351 15 20.13243 0.500 17.78364 0.517 15.5 8 0.266667 17.78364 0.275862 17.22441 20.80351 0.6 0.933333 0.931034 1 1979 19.57319 16 20.24427 0.533 17.78364 0.552 16.5 8.5 0.3 17.78364 0.310345 17.22441 21.25089 0.933333 0.966667 1 11980 21.25089 17 20.57981 0.567 18.34288 0.586 17.5 9 0.3 18.34288 0.310345 17.22441 21.92198 0.966667 0.966667 1 1.034483 1981 17.78364 18 20.80351 0.600 18.34288 0.621 18.5 9.5 0.333333 18.34288 0.344828 17.22441 22.81675 0.966667 1 1.034483 1.034483 1982 19.01396 19 20.80351 0.633 18.34288 0.655 19.5 10 0.333333 18.34288 0.344828 17.224411983 20.80351 20 20.80351 0.667 18.34288 0.690 20.5 10.5 0.366667 18.34288 0.37931 17.224411984 20.80351 21 20.80351 0.700 19.01396 0.724 21.5 11 0.366667 18.34288 0.37931 17.224411985 18.45472 22 20.80351 0.733 19.68504 0.759 22.5 11.5 0.4 18.34288 0.413793 17.224411986 20.80351 23 20.80351 0.767 19.68504 0.793 23.5 12 0.4 18.45472 0.413793 17.224411987 20.80351 24 20.80351 0.800 19.68504 0.828 24.5 12.5 0.433333 18.45472 0.448276 17.224411988 20.80351 25 20.80351 0.833 20.24427 0.862 25.5 13 0.433333 19.01396 0.448276 17.224411989 20.80351 26 20.80351 0.866667 20.24427 0.896552 26.5 13.5 0.466667 19.01396 0.482759 17.224411990 18.34288 27 20.80351 0.9 20.80351 0.931034 27.5 14 0.466667 19.57319 0.482759 17.783641991 20.80351 28 21.25089 0.933333 20.80351 0.965517 28.5 14.5 0.5 19.57319 0.517241 17.783641992 20.24427 29 22.81675 0.966667 21.92198 1 29.5 15 0.5 20.13243 0.517241 17.783641993 20.80351 30 22.81675 1 1.034483 30.5 15.5 0.533333 20.13243 0.551724 17.783641994 17.22441 16 0.533333 20.24427 0.551724 17.783641995 20.24427 16.5 0.566667 20.24427 0.586207 17.783641996 20.80351 17 0.566667 20.57981 0.586207 18.342881997 21.92198 17.5 0.6 20.57981 0.62069 18.342881998 20.80351 18 0.6 20.80351 0.62069 18.342881999 18.34288 18.5 0.633333 20.80351 0.655172 18.342882000 17.78364 19 0.633333 20.80351 0.655172 18.342882001 20.24427 19.5 0.666667 20.80351 0.689655 18.342882002 19.68504 20 0.666667 20.80351 0.689655 18.342882003 17.78364 20.5 0.7 20.80351 0.724138 18.342882004 18.34288 21 0.7 20.80351 0.724138 19.013962005 19.68504 21.5 0.733333 20.80351 0.758621 19.013962006 17.22441 22 0.733333 20.80351 0.758621 19.685042007 17.22441 22.5 0.766667 20.80351 0.793103 19.685042008 17.78364 23 0.766667 20.80351 0.793103 19.685042009 16.66518 23.5 0.8 20.80351 0.827586 19.685042010 17.22441 24 0.8 20.80351 0.827586 19.685042011 18.34288 24.5 0.833333 20.80351 0.862069 19.685042012 15.54671 25 0.833333 20.80351 0.862069 20.244272013 16.10594 25.5 0.866667 20.80351 0.896552 20.244272014 16.66518 26 0.866667 20.80351 0.896552 20.244272015 16.10594 26.5 0.9 20.80351 0.931034 20.244272016 17.22441 27 0.9 20.80351 0.931034 20.803512017 18.34288 27.5 0.933333 20.80351 0.965517 20.803512018 17.22441 28 0.933333 21.25089 0.965517 20.803512019 19.01396 28.5 0.966667 21.25089 1 20.803512020 16.10594 29 0.966667 22.81675 1 21.921982021 17.22441 29.5 1 22.81675 1.034483 21.921982022 19.68504 30 1 22.81675 1.034483 #N/A

30.5 1 22.81675 1 #N/A
USACE RMC-TR-2021-02 (PDF p17):
0 0.10.20.30.40.50.60.70.80.9
1 17 18 19 20 21 22 23
Step-Wise Cumulative Distribution Functions Sample 1 Sample 2 X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac Executive (SAC).xlsm X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac Executive (SAC).xlsm y = -0.0189x + 56.307
R² = 0.0494
y = -0.0293x + 77.24
R² = 0.0696
05 10152025
1960 1970 1980 1990 2000 2010 2020 2030
Peak Annual 2-minute Observed Wind Speed, Averages of All Wind Directions (mph) Year
Mean Median Historical Trend of Average Annual Peak Wind Speeds X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac Executive (SAC).xlsm y = 0.0104x - 3.0164
R² = 0.0154
y = 0.0000x + 17.9162
R² = 0.0000
05 10152025
1960 1970 1980 1990 2000 2010 2020 2030
Peak Annual 2-minute Observed Wind Speed, Averages of All Wind Directions (mph) Year
Mean Median Detrended (to 2023) Average Annual Peak Wind Speeds

3.4 – Design Wind Speed Analysis for Sacramento International Airport (SMF) GEV Frequency Plots of Observed 2-min Wind Speed (mph)
Dir = 360 deg Dir = 10 deg Dir = 20 deg Dir = 30 deg Dir = 40 deg Dir = 90 deg Dir = 100 deg Dir = 110 deg Dir = 120 deg Dir = 130 deg Dir = 180 deg Dir = 190 deg Dir = 200 deg Dir = 210 deg Dir = 220 deg Dir = 270 deg Dir = 280 deg Dir = 290 deg Dir = 300 deg Dir = 310 deg y = 4.1307x + 20.027
R² = 0.9899
0 10
20 30
40 -2 -1 0 1 2 3 4
y = 4.1056x + 15.17
R² = 0.9903
0 5
10 15
20 25
30 35
-2 -1 0 1 2 3 4 5
y = 4.1265x + 13.647
R² = 0.9712
0 5
10 15
20 25
30 35
-2 -1 0 1 2 3 4 5
y = 2.8938x + 11.792
R² = 0.9189
0 10
20 30
40 -2 -1 0 1 2 3 4 5 6 7
y = 3.9313x + 24.082
R² = 0.9762
0 10
20 30
40 -2 -1 0 1 2 3 4
y = 2.9574x + 12.341
R² = 0.9732
0 5
10 15
20 25
30 -2 -1 0 1 2 3 4 5
y = 3.1614x + 11.098
R² = 0.9834
0 5
10 15
20 25
30 -2 -1 0 1 2 3 4 5 6
y = 3.0298x + 11.953
R² = 0.9759
0 5
10 15
20 25
30 -2 -1 0 1 2 3 4 5
y = 3.832x + 14.171
R² = 0.9031
0 10
20 30
40 50
60 70
-2-1 0 1 2 3 4 5 6 7 8 9
y = 5.5781x + 18.932
R² = 0.9826
0 10
20 30
40 50
-2 -1 0 1 2 3 4
y = 6.3685x + 23.562
R² = 0.9875
0 10
20 30
40 50
-2 -1 0 1 2 3 4
y = 3.1457x + 24.383
R² = 0.9832
0 10
20 30
40 50
60 -2-1 0 1 2 3 4 5 6 7 8 9
y = 3.2412x + 23.783
R² = 0.9939
0 10
20 30
40 -2 -1 0 1 2 3 4
y = 3.568x + 21.386
R² = 0.9763
0 10
20 30
40 -2 -1 0 1 2 3 4
y = 3.2941x + 18.631
R² = 0.9883
0 10
20 30
40 -2 -1 0 1 2 3 4 5
y = 3.9395x + 16.397
R² = 0.959
0 10
20 30
40 -2 -1 0 1 2 3 4
y = 3.8296x + 15.105
R² = 0.9697
0 5
10 15
20 25
30 -2 -1 0 1 2 3 4
y = 2.9088x + 15.826
R² = 0.9703
0 5
10 15
20 25
30 35
-2 -1 0 1 2 3 4 5
y = 4.5368x + 18.291
R² = 0.9664
0 10
20 30
40 -2 -1 0 1 2 3 4 5
y = 4.0201x + 21.362
R² = 0.9826
0 10
20 30
40 50
-2 -1 0 1 2 3 4 5
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac International (SMF).xlsm GEV Frequency Plots of Observed 2-min Wind Speed (mph)
Dir = 50 deg Dir = 60 deg Dir = 70 deg Dir = 80 deg
Dir = 140 deg Dir = 150 deg Dir = 160 deg Dir = 170 deg Dir = 230 deg Dir = 240 deg Dir = 250 deg Dir = 260 deg Dir = 320 deg Dir = 330 deg Dir = 340 deg Dir = 350 deg y = 3.0376x + 10.418
R² = 0.9911
0 5
10 15
20 25
30 -2 -1 0 1 2 3 4 5 6
y = 2.5411x + 10.583
R² = 0.9841
0 5
10 15
20 25
-2 -1 0 1 2 3 4 5
y = 2.4747x + 10.432
R² = 0.9824
0 5
10 15
20 25
30 -2 -1 0 1 2 3 4 5 6 7
y = 2.3988x + 10.026
R² = 0.9892
0 5
10 15
20 25
-2 -1 0 1 2 3 4 5
y = 6.4566x + 29.689
R² = 0.97
0 10
20 30
40 50
60 -2 -1 0 1 2 3 4
y = 6.6568x + 33.143
R² = 0.9929
0 10
20 30
40 50
60 -2 -1 0 1 2 3
y = 6.1829x + 29.97
R² = 0.9871
0 10
20 30
40 50
60 -2 -1 0 1 2 3 4
y = 3.7554x + 26.468
R² = 0.9767
0 10
20 30
40 -2 -1 0 1 2 3 4
y = 4.4302x + 18.39
R² = 0.9883
0 5
10 15
20 25
30 35
-2 -1 0 1 2 3
y = 4.3403x + 18.214
R² = 0.985
0 5
10 15
20 25
30 -2 -1 0 1 2 3
y = 3.7699x + 15.631
R² = 0.9885
0 5
10 15
20 25
30 35
-2 -1 0 1 2 3 4 5
y = 3.5137x + 16.372
R² = 0.9624
0 5
10 15
20 25
30 35
-2 -1 0 1 2 3 4
y = 3.4849x + 26.274
R² = 0.9802
0 10
20 30
40 -2 -1 0 1 2 3 4
y = 4.3647x + 28.614
R² = 0.9879
0 10
20 30
40 50
-2 -1 0 1 2 3
y = 3.6896x + 28.055
R² = 0.9624
0 10
20 30
40 50
-2 -1 0 1 2 3 4
y = 4.2981x + 24.717
R² = 0.9764
0 10
20 30
40 50
-2 -1 0 1 2 3 4
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac International (SMF).xlsm Year 360 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 Mean Max Median 1973 28 14 11 14 9 10 9 16 14 18 17 17 25 32 40 44 40 29 29 29 23 23 18 23 23 29 17 14 21 16 23 28 34 25 28 29 23 44 231974 23 12 12 12 9 9 17 9 9 15 12 12 18 29 29 44 46 29 25 23 23 20 18 18 17 16 14 20 14 20 23 23 35 30 29 25 20 46 191975 26 16 25 10 12 17 10 23 12 12 14 12 31 29 28 40 44 35 35 25 23 22 18 18 18 21 17 19 16 17 23 29 35 35 37 29 23 44 221976 21 21 15 15 8 12 12 9 8 17 17 15 22 21 29 32 40 30 23 23 23 23 20 20 20 17 15 18 15 12 23 37 25 35 29 23 21 40 201977 21 12 10 12 26 9 14 9 12 12 9 23 30 29 29 37 32 29 21 23 21 18 12 17 17 17 17 21 14 29 23 25 23 26 24 25 20 37 211978 20 12 12 12 21 14 8 11 10 13 17 20 17 40 38 46 46 35 40 22 17 17 16 17 13 13 15 13 14 18 35 23 31 25 39 31 22 46 171979 16 17 11 11 9 8 11 9 10 8 13 16 24 29 34 30 39 30 41 21 21 17 17 16 19 11 11 18 13 11 23 21 23 23 23 19 19 41 171980 14 19 11 9 14 10 9 10 9 13 11 16 34 22 31 34 40 23 21 18 17 17 14 17 11 17 18 16 14 15 17 23 25 23 23 21 18 40 171981 17 15 13 11 18 11 16 16 9 13 11 15 25 40 34 40 32 29 23 23 23 17 16 11 17 17 18 19 14 15 22 23 25 34 29 23 20 40 181982 23 10 13 11 16 10 11 10 11 11 17 17 21 34 34 40 32 34 29 25 32 21 17 11 11 17 19 21 11 14 19 32 30 29 24 31 21 40 191983 25 15 14 21 9 15 10 9 9 11 13 13 22 34 40 34 34 29 46 25 23 21 17 11 23 14 11 17 13 21 23 23 25 23 34 21 21 46 211984 16 18 11 13 13 15 11 10 13 13 14 23 23 34 29 34 30 29 23 21 23 20 17 17 14 14 17 14 23 17 23 23 29 25 29 23 20 34 191985 25 13 21 11 11 11 11 11 14 13 13 17 23 32 34 34 32 34 24 25 25 21 21 14 23 15 11 16 21 21 25 25 29 29 29 23 21 34 211986 16 14 11 11 11 7 9 7 11 11 16 17 21 23 29 34 29 25 23 23 23 17 14 14 15 17 14 13 17 18 34 20 23 24 21 20 18 34 171987 21 21 21 14 9 8 8 9 9 11 17 23 25 29 30 28 29 25 25 23 22 17 16 13 15 15 18 13 23 25 20 28 23 29 29 29 20 30 211988 21 15 16 21 15 20 20 21 9 14 17 14 23 21 29 25 25 23 21 17 17 17 14 16 14 11 16 14 16 18 23 29 25 32 28 29 20 32 191989 14 11 10 17 8 7 7 9 17 17 11 15 21 23 21 21 23 23 23 18 34 32 17 14 11 14 11 11 14 17 17 20 23 26 23 21 17 34 171990 29 11 21 11 11 11 11 11 11 14 11 18 21 25 23 28 26 25 28 29 26 17 17 17 13 11 14 15 17 17 23 23 29 29 29 29 20 29 181991 29 18 18 11 11 11 16 16 11 17 17 21 29 30 34 34 37 36 37 23 34 21 21 18 21 24 11 17 11 17 23 23 30 29 29 29 23 37 211992 21 9 17 17 7 18 9 8 9 17 9 11 25 29 25 28 26 25 26 21 21 17 18 15 15 9 18 11 9 14 32 23 23 28 25 23 18 32 181993 23 11 11 9 9 13 17 8 8 10 11 15 25 24 30 25 30 23 32 26 26 19 14 19 24 11 9 11 23 17 17 23 23 23 23 21 19 32 191994 21 18 9 9 7 7 8 9 17 14 10 21 23 25 28 23 28 21 23 21 23 14 16 14 11 13 16 16 15 15 17 17 22 21 23 21 17 28 171995 17 16 9 7 11 16 8 11 16 28 34 23 40 40 52 29 24 23 25 22 17 17 17 11 21 9 18 9 21 14 18 21 23 21 24 16 20 52 181996 19 21 15 13 10 7 13 10 13 21 11 23 25 25 29 37 34 30 30 24 23 24 17 17 21 17 22 22 11 11 13 23 30 25 25 21 20 37 211997 23 23 25 23 11 17 11 9 11 17 14 17 23 30 34 32 29 32 28 25 23 18 17 16 21 16 14 13 14 17 28 22 25 31 31 34 22 34 221998 15 11 10 8 8 8 9 8 8 19 21 34 25 32 31 39 40 30 28 23 21 23 31 21 17 13 15 17 9 13 17 17 28 31 30 31 21 40 201999 24 19 19 10 16 18 10 11 9 13 17 13 15 21 25 32 30 30 23 24 29 29 21 28 21 21 23 17 23 15 15 21 25 29 30 33 21 33 212000 31 14 14 11 10 10 8 10 10 9 13 16 15 15 29 34 33 27 31 21 32 29 19 22 25 16 18 18 18 14 15 17 24 33 30 33 20 34 182001 22 18 15 15 13 10 15 14 8 9 8 11 22 24 38 39 41 28 25 29 31 24 17 25 24 22 23 19 13 13 13 18 26 31 34 31 21 41 222002 21 17 13 22 18 9 9 10 9 10 16 11 17 25 36 37 31 25 29 30 25 21 18 23 19 22 18 11 14 21 15 24 29 29 29 23 21 37 212003 24 10 10 11 10 8 10 15 9 14 17 15 15 23 38 44 26 23 23 26 26 25 26 21 26 15 16 19 14 11 16 25 26 25 25 28 20 44 202004 21 17 19 10 10 9 10 11 8 8 15 21 17 31 41 40 37 30 25 23 28 22 19 17 14 14 14 11 21 15 25 25 30 30 29 24 21 41 202005 18 20 25 14 10 11 11 11 14 15 10 17 20 24 33 31 26 28 23 32 25 26 23 22 21 25 16 24 16 23 18 25 25 28 28 22 21 33 222006 15 11 11 11 15 13 9 15 14 13 10 14 16 30 39 36 33 26 26 26 28 24 21 21 22 21 17 18 14 13 21 32 34 32 31 22 21 39 212007 17 17 10 14 22 10 11 8 8 11 9 15 13 17 22 26 23 25 25 23 21 22 22 21 18 15 20 24 23 15 17 23 30 30 30 26 19 30 202008 18 11 10 10 7 9 8 21 9 8 8 57 24 46 53 45 29 21 24 33 25 22 25 18 21 15 18 23 25 17 17 25 32 40 33 36 24 57 212009 30 13 10 9 10 8 14 13 10 7 11 16 29 22 34 37 36 28 22 26 28 22 22 25 17 14 11 15 14 20 26 29 28 30 29 23 21 37 222010 17 13 11 9 8 7 10 11 8 9 8 13 20 24 33 41 37 29 29 25 32 24 23 24 21 17 15 16 18 20 15 20 26 29 29 23 20 41 202011 22 16 15 11 9 10 10 9 7 13 14 13 17 23 43 33 30 28 23 28 28 29 22 23 17 22 21 22 13 18 17 18 28 33 34 24 21 43 212012 16 21 11 15 10 8 6 8 7 15 8 7 20 18 30 33 31 26 25 25 30 23 26 29 18 28 29 33 16 17 17 18 33 36 32 28 21 36 202013 26 25 14 10 21 24 15 8 10 8 11 11 11 18 17 24 22 23 24 29 36 23 16 18 20 14 22 17 13 20 18 23 25 33 34 26 20 36 202014 21 28 30 14 15 13 8 11 10 10 14 10 15 20 30 31 28 21 20 21 28 24 21 18 18 14 14 13 13 18 13 17 24 26 29 25 19 31 182015 21 24 16 14 14 26 9 10 8 14 7 18 17 18 26 32 25 23 22 23 24 24 30 17 21 21 20 18 11 11 14 16 21 29 24 23 19 32 202016 23 11 23 14 11 10 21 11 8 11 9 16 14 21 34 36 31 26 23 22 25 29 25 28 15 14 20 15 13 16 14 16 24 28 25 23 20 36 202017 17 14 13 13 10 8 13 7 11 9 16 14 15 22 37 43 33 29 25 25 26 24 21 21 23 21 18 23 20 17 15 22 26 34 33 25 21 43 212018 18 16 10 23 22 9 14 14 8 10 11 13 15 22 24 36 28 26 26 31 26 29 24 28 26 22 30 17 22 16 14 15 22 34 31 25 21 36 222019 34 28 17 17 14 16 13 15 17 14 14 13 16 20 38 38 29 26 24 29 28 26 33 28 28 15 18 23 16 15 16 21 30 36 34 37 23 38 222020 17 17 21 15 18 8 10 15 11 11 11 13 10 14 25 26 18 25 25 25 24 22 24 24 24 21 24 21 16 18 24 18 25 30 30 30 20 30 212021 24 30 28 16 10 14 9 6 8 17 9 17 16 20 26 40 38 30 22 21 23 25 17 23 15 14 18 18 13 13 20 21 31 33 30 31 21 40 202022 21 20 23 18 9 11 10 10 7 10 9 11 14 18 21 31 29 25 22 22 22 26 21 22 21 20 20 23 26 18 18 21 31 37 31 24 20 37 21 Average adjustment for annual peak wind speed values based on linear trendline, to 2023 = 0.1 0.9 mph Slope = 0.0029 0.0342 mph/year
2-min Annual Peak Wind Speed by Direction
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac International (SMF).xlsm Year 360 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 Mean Max Median 1973 29 15 13 15 11 12 11 18 15 20 19 19 27 34 42 45 42 30 30 30 25 25 20 25 25 30 19 15 22 18 25 29 36 27 29 30 24 45 251974 25 13 13 13 11 11 19 11 11 17 13 13 20 31 31 46 48 31 27 25 25 21 20 20 19 18 16 21 16 21 25 25 36 32 31 27 22 48 211975 28 18 27 12 13 19 12 25 13 13 16 13 33 30 29 42 45 36 36 27 25 24 20 20 20 22 19 21 18 19 25 30 36 36 39 30 25 45 241976 22 22 17 17 10 13 13 11 10 19 19 17 24 22 30 34 42 32 25 25 25 25 21 21 21 19 17 20 17 13 25 39 27 36 30 25 22 42 221977 22 13 12 13 28 11 15 11 13 13 11 25 32 30 30 38 34 30 22 25 22 20 13 19 19 19 19 22 15 30 25 27 25 28 26 27 22 38 221978 21 13 13 13 22 15 10 13 12 14 19 21 19 42 40 48 48 36 42 23 19 19 18 19 14 14 17 14 15 20 36 25 33 27 41 33 24 48 191979 18 19 13 13 11 10 13 11 12 10 14 18 26 30 36 31 41 31 43 22 22 19 19 18 21 13 13 20 14 13 24 22 24 24 24 21 20 43 191980 15 21 13 11 15 12 11 12 11 14 13 18 36 23 32 36 42 24 22 20 19 19 15 19 13 19 20 18 15 16 19 24 27 24 24 22 20 42 191981 19 16 14 13 20 13 18 18 11 14 13 16 27 42 36 42 34 30 24 24 24 19 18 13 19 19 20 21 15 16 23 24 27 36 30 24 22 42 191982 24 12 14 13 18 12 13 12 13 13 19 19 22 36 36 42 34 36 30 27 34 22 19 13 13 19 21 22 13 15 21 34 31 30 26 32 22 42 211983 27 16 15 22 11 16 12 11 11 13 14 14 23 36 42 36 36 30 47 27 24 22 19 13 24 15 13 19 14 22 24 24 27 24 36 22 22 47 221984 17 20 13 14 14 16 13 12 14 14 15 24 24 36 30 36 31 30 24 22 24 21 19 19 15 15 19 15 24 19 24 24 30 27 30 24 21 36 201985 27 14 22 13 13 13 13 13 15 14 14 19 24 34 36 36 34 36 25 27 27 22 22 15 24 16 13 17 22 22 27 27 30 30 30 24 22 36 221986 17 15 13 13 13 8 10 8 13 13 17 18 22 24 30 36 30 27 24 24 24 18 15 15 16 18 15 14 18 20 36 21 24 25 22 21 19 36 181987 22 22 22 15 10 9 9 10 10 13 18 24 27 30 31 29 30 27 27 24 23 18 17 14 16 16 20 14 24 27 21 29 24 30 30 30 21 31 221988 22 16 17 22 16 21 21 22 10 15 18 15 24 22 30 26 26 24 22 18 18 18 15 17 15 13 17 15 17 20 24 30 26 33 29 30 21 33 201989 15 13 11 18 9 8 8 10 18 18 13 16 22 24 22 22 24 24 24 20 36 33 18 15 13 15 13 13 15 18 18 21 24 28 24 22 19 36 181990 30 13 22 13 13 13 13 13 13 15 13 19 22 26 24 29 28 26 29 30 28 18 18 18 14 13 15 16 18 18 24 24 30 30 30 30 21 30 191991 30 19 19 13 13 13 17 17 13 18 18 22 30 31 36 36 38 37 38 24 36 22 22 19 22 25 13 18 13 18 24 24 31 30 30 30 24 38 221992 22 10 18 18 8 19 10 9 10 18 10 12 26 30 26 29 27 26 27 22 22 18 19 16 16 10 19 12 10 15 33 24 24 29 26 24 19 33 191993 24 12 12 10 10 14 18 9 9 11 12 16 26 25 31 26 31 24 33 27 27 20 15 20 25 12 10 12 24 18 18 24 24 24 24 22 20 33 201994 22 19 10 10 8 8 9 10 18 15 11 22 24 26 29 24 29 22 24 22 24 15 17 15 12 14 17 17 16 16 18 18 23 22 24 22 18 29 181995 18 17 10 8 12 17 9 12 17 28 35 24 41 41 53 30 25 24 26 23 18 18 18 12 22 10 19 10 22 15 19 22 24 22 25 17 21 53 191996 20 22 16 13 11 8 13 11 13 22 12 24 26 26 30 38 35 31 31 25 24 25 18 18 22 18 23 23 12 12 13 24 31 26 26 22 21 38 221997 24 24 26 24 12 18 12 10 12 18 15 18 24 31 35 33 30 33 28 26 24 19 18 17 22 17 15 14 15 18 28 23 26 32 32 35 22 35 231998 16 12 11 9 9 9 10 9 9 20 22 35 26 33 32 40 41 31 28 24 22 24 32 22 18 14 16 18 10 14 18 18 28 32 31 32 22 41 211999 25 20 20 11 17 19 11 12 10 14 18 14 16 22 26 33 31 31 24 25 30 30 22 28 22 22 24 18 24 16 16 22 26 30 31 34 22 34 222000 32 15 15 12 11 11 9 11 11 10 14 17 16 16 30 35 34 28 32 22 33 30 20 23 26 16 19 19 19 15 16 18 25 34 31 34 21 35 192001 23 19 16 16 14 11 16 15 9 10 9 12 23 25 39 40 42 28 26 30 32 25 18 26 25 23 24 20 14 14 14 19 27 32 35 32 22 42 232002 22 18 13 23 19 10 10 11 10 11 17 12 18 26 36 38 32 26 30 31 26 22 19 24 20 23 19 12 15 22 16 25 30 30 30 24 21 38 222003 25 11 11 12 11 9 11 16 10 15 18 16 16 24 39 44 27 24 24 27 27 26 27 21 27 16 17 20 15 12 17 26 27 26 26 28 21 44 212004 21 18 20 11 11 10 11 12 9 9 16 21 18 32 42 41 38 31 26 24 28 23 20 18 15 15 15 12 21 16 26 26 31 31 30 25 21 42 212005 19 20 26 14 11 12 12 12 14 16 11 18 20 25 34 32 27 28 24 33 26 27 24 23 21 26 17 25 17 24 19 26 26 28 28 23 22 34 232006 16 12 12 12 16 13 10 16 14 13 11 14 17 31 40 36 34 27 27 27 28 25 21 21 23 21 18 19 14 13 21 33 35 33 32 23 22 40 212007 18 18 11 14 22 11 12 9 9 12 10 16 13 18 22 27 24 26 26 24 21 22 22 21 19 16 20 25 24 16 18 24 31 31 31 27 20 31 212008 19 12 11 11 7 10 9 21 10 9 9 58 25 47 54 45 29 21 25 34 26 22 26 19 21 16 19 24 26 18 18 26 33 41 34 36 24 58 222009 30 13 11 10 11 9 14 13 11 7 12 17 29 22 35 37 36 28 22 27 28 22 22 26 18 14 12 15 14 20 27 29 28 30 29 24 21 37 222010 18 13 12 10 8 7 11 12 8 10 8 13 20 25 34 42 37 29 29 26 33 25 23 25 21 18 15 17 19 20 15 20 27 29 29 23 20 42 202011 22 17 15 12 10 11 11 10 7 13 14 13 18 23 43 34 30 28 23 28 28 29 22 23 18 22 21 22 13 19 18 19 28 34 35 25 21 43 222012 16 21 12 15 11 8 6 8 7 15 8 7 20 19 30 34 31 27 26 26 30 23 27 29 19 28 29 34 16 18 18 19 34 36 33 28 21 36 212013 27 26 14 11 21 25 15 8 11 8 12 12 12 19 18 25 22 23 25 29 36 23 16 19 20 14 22 18 13 20 19 23 26 34 35 27 20 36 202014 21 28 30 14 15 13 8 12 11 11 14 11 15 20 30 31 28 21 20 21 28 24 21 19 19 14 14 13 13 19 13 18 24 27 29 26 19 31 192015 21 24 16 14 14 27 9 11 8 14 7 19 17 19 27 32 26 23 22 23 24 24 30 17 21 21 20 19 12 12 14 16 21 29 24 23 20 32 212016 23 12 23 14 12 11 21 12 8 12 9 16 14 21 35 36 31 27 23 22 26 29 26 28 15 14 20 15 13 16 14 16 24 28 26 23 20 36 202017 17 14 13 13 10 8 13 7 12 9 16 14 15 22 37 43 34 29 25 25 27 24 21 21 23 21 19 23 20 17 15 22 27 35 34 25 21 43 212018 19 16 10 23 22 9 14 14 8 10 12 13 15 22 24 36 28 27 27 31 27 29 24 28 27 22 30 17 22 16 14 15 22 35 31 25 21 36 222019 35 28 17 17 14 16 13 15 17 14 14 13 16 20 38 38 29 27 24 29 28 27 33 28 28 15 18 23 16 15 16 21 30 36 35 37 23 38 222020 17 17 21 15 18 8 10 15 12 12 12 13 10 14 25 26 18 25 25 25 24 22 24 24 24 21 24 21 16 18 24 18 25 30 30 30 20 30 212021 24 30 28 16 10 14 9 6 8 17 9 17 16 20 26 40 38 30 22 21 23 25 17 23 15 14 18 18 13 13 20 21 31 33 30 31 21 40 202022 21 20 23 18 9 11 10 10 7 10 9 11 14 18 21 31 29 25 22 22 22 26 21 22 21 20 20 23 26 18 18 21 31 37 31 24 20 37 212023 = Detrend year DETRENDED --- 2-min Annual Peak Wind Speed by Direction X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac International (SMF).xlsm Calculate Kolmogorov-Smirnov (K-S) Test for various levels of significance, to evaluate the likelihood of non-stationarity in wind speeds.

Sample data is based on the median value (of all wind directions) of annual maximums (for each wind direction).

Count Mean Std Dev
Total 50 20.0 1.6
Sample 1 25 19.4 1.8Sample 2 25 20.6 1.0 Maximum Difference, Dn,m = 0.52 Combine
39 Sample 1 Sample 2 Sample 1 Sample 2 Unique Sample 1 Sample 2 Significance Year U (mph) Value Cum Freq Value Cum Freq Half-Rank Stepwise Cum Freq Value Cum Freq Value Values RankMin RankMax RankMin RankMax Level K-S Dtest Result Explanation 1973 22.81675 1 17.22441 0.040 18.34288 0.040 1.5 1 0.04 17.22441 0.04 18.34288 17.22441 0.04 0.28 0.04 0.04 10% 0.24 Reject Ho 1974 19.01396 2 17.22441 0.080 18.34288 0.080 2.5 1.5 0.08 17.22441 0.08 18.34288 17.78364 0.28 0.36 0.04 0.04 50% 0.29 Reject Ho1975 22.48121 3 17.22441 0.120 19.68504 0.120 3.5 2 0.08 17.22441 0.08 18.34288 18.34288 0.36 0.44 0.04 0.12 90% 0.38 Reject Ho 1976 20.24427 4 17.22441 0.160 19.68504 0.160 4.5 2.5 0.12 17.22441 0.12 18.34288 19.01396 0.44 0.56 0.12 0.12 95% 0.42 Reject Ho1977 20.80351 5 17.22441 0.200 19.68504 0.200 5.5 3 0.12 17.22441 0.12 19.68504 19.46135 0.56 0.64 0.12 0.12 99% 0.49 Reject Ho With 99% significance, the samples come from different population distributions.1978 17.22441 6 17.22441 0.240 20.13243 0.240 6.5 3.5 0.16 17.22441 0.16 19.68504 19.68504 0.64 0.64 0.12 0.24 99.9% 0.58 Accept Ho Null hypothesis cannot be rejected at the 99.9% significance level. (Population distributions assumed equal) 1979 17.22441 7 17.78364 0.280 20.13243 0.280 7.5 4 0.16 17.22441 0.16 19.68504 20.13243 0.64 0.64 0.24 0.361980 17.22441 8 17.78364 0.320 20.13243 0.320 8.5 4.5 0.2 17.22441 0.2 19.68504 20.24427 0.64 0.68 0.36 0.521981 17.78364 9 18.34288 0.360 20.24427 0.360 9.5 5 0.2 17.22441 0.2 19.68504 20.57981 0.68 0.72 0.52 0.521982 19.46135 10 18.34288 0.400 20.24427 0.400 10.5 5.5 0.24 17.22441 0.24 19.68504 20.69166 0.72 0.76 0.52 0.521983 20.57981 11 19.01396 0.440 20.24427 0.440 11.5 6 0.24 17.22441 0.24 20.13243 20.80351 0.76 0.92 0.52 0.761984 19.01396 12 19.01396 0.480 20.24427 0.480 12.5 6.5 0.28 17.22441 0.28 20.13243 21.36274 0.92 0.92 0.76 0.841985 20.80351 13 19.01396 0.520 20.80351 0.520 13.5 7 0.28 17.78364 0.28 20.13243 21.92198 0.92 0.92 0.84 11986 17.22441 14 19.46135 0.560 20.80351 0.560 14.5 7.5 0.32 17.78364 0.32 20.13243 22.48121 0.92 1 1 11987 20.80351 15 19.46135 0.600 20.80351 0.600 15.5 8 0.32 17.78364 0.32 20.13243 22.81675 1 1 1 11988 19.01396 16 20.24427 0.640 20.80351 0.640 16.5 8.5 0.36 17.78364 0.36 20.132431989 17.22441 17 20.57981 0.680 20.80351 0.680 17.5 9 0.36 18.34288 0.36 20.244271990 17.78364 18 20.69166 0.720 20.80351 0.720 18.5 9.5 0.4 18.34288 0.4 20.244271991 20.80351 19 20.80351 0.760 21.36274 0.760 19.5 10 0.4 18.34288 0.4 20.244271992 18.34288 20 20.80351 0.800 21.36274 0.800 20.5 10.5 0.44 18.34288 0.44 20.244271993 19.46135 21 20.80351 0.840 21.92198 0.840 21.5 11 0.44 19.01396 0.44 20.244271994 17.22441 22 20.80351 0.880 21.92198 0.880 22.5 11.5 0.48 19.01396 0.48 20.244271995 18.34288 23 22.48121 0.920 21.92198 0.920 23.5 12 0.48 19.01396 0.48 20.244271996 20.69166 24 22.48121 0.960 21.92198 0.960 24.5 12.5 0.52 19.01396 0.52 20.244271997 22.48121 25 22.81675 1.000 22.48121 1.000 25.5 13 0.52 19.01396 0.52 20.803511998 20.13243 13.5 0.56 19.01396 0.56 20.803511999 20.80351 14 0.56 19.46135 0.56 20.803512000 18.34288 14.5 0.6 19.46135 0.6 20.803512001 21.92198 15 0.6 19.46135 0.6 20.803512002 20.80351 15.5 0.64 19.46135 0.64 20.803512003 20.13243 16 0.64 20.24427 0.64 20.803512004 20.13243 16.5 0.68 20.24427 0.68 20.803512005 22.48121 17 0.68 20.57981 0.68 20.803512006 20.80351 17.5 0.72 20.57981 0.72 20.803512007 20.24427 18 0.72 20.69166 0.72 20.803512008 21.36274 18.5 0.76 20.69166 0.76 20.803512009 21.92198 19 0.76 20.80351 0.76 21.362742010 19.68504 19.5 0.8 20.80351 0.8 21.362742011 21.36274 20 0.8 20.80351 0.8 21.362742012 20.24427 20.5 0.84 20.80351 0.84 21.362742013 19.68504 21 0.84 20.80351 0.84 21.921982014 18.34288 21.5 0.88 20.80351 0.88 21.921982015 20.24427 22 0.88 20.80351 0.88 21.921982016 20.24427 22.5 0.92 20.80351 0.92 21.921982017 20.80351 23 0.92 22.48121 0.92 21.921982018 21.92198 23.5 0.96 22.48121 0.96 21.921982019 21.92198 24 0.96 22.48121 0.96 21.921982020 20.80351 24.5 1 22.48121 1 21.921982021 19.68504 25 1 22.81675 1 22.481212022 20.80351 25.5 1 22.81675 1 22.48121 USACE RMC-TR-2021-02 (PDF p17):
0 0.10.20.30.40.50.60.70.80.9
1 0 5 10 15 20 25
Step-Wise Cumulative Distribution Functions Sample 1 Sample 2 X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac International (SMF).xlsm X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac International (SMF).xlsm y = 0.0029x + 14.571
R² = 0.0009
y = 0.0342x - 48.307
R² = 0.0987
05 1015202530
1970 1980 1990 2000 2010 2020 2030
Peak Annual 2-minute Observed Wind Speed, Averages of All Wind Directions (mph) Year
Mean Median Historical Trend of Average Annual Peak Wind Speeds X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac International (SMF).xlsm y = -0.0313x + 83.728
R² = 0.098
y = 20.8498
R² = 0.0000
05 1015202530
1970 1980 1990 2000 2010 2020 2030
Peak Annual 2-minute Observed Wind Speed, Averages of All Wind Directions (mph) Year
Mean Median Detrended (to 2023) Average Annual Peak Wind Speeds Exhibit 4. Wind Speed and Direction, Four Airports
Comparison
Wind Rose - McClellan Airport (MCC)
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-McClellan (MCC).xlsm 53 mph @ 160°

37.7 mph @ 340°
0 102030405060
360
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72.6-year Speed by Wind
Wind speeds shown are2-minute-average speeds observed 20 feet above groundat McClellan Airport (MCC) with a 50% chance of being exceeded in a 50-year period (equivalent to a 72.6-year return period).

Wind speed data downloaded on August 24, 2023 from:https://www.ncei.noaa.gov/access/search/data-search/localclimatological-data 50% exceedance in
50 years (72.6-year
annual return period)
Maximum in record
Wind Rose - Mather Airport (MHR)
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Mather (MHR).xlsm

60.7 mph @ 110°

45.7 mph @ 240°

45.2 mph @ 340°
0 10203040506070
360
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72.6-year Speed by Wind
Wind speeds shown are2-minute-average speeds observed 20 feet above groundat Mather Airport (MHR) with a 50% chance of being exceeded in a 50-year period (equivalent to a 72.6-year return period).

Wind speed data downloaded on August 24, 2023 from:https://www.ncei.noaa.gov/access/search/data-search/localclimatological-data 50% exceedance in 50 years (72.6-yearannual return period)Maximum in record Wind Rose - Sacramento Executive Airport (SAC)
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac Executive (SAC).xlsm

41.8 mph @ 140°

36.3 mph @ 350°
05 1015202530354045
360
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72.6-year Speed by Wind
Wind speeds shown are2-minute-average speeds observed 20 feet above groundat Sacramento Executive Airport (SAC) with a 50% chance of being exceeded in a 50-year period (equivalent to a 72.6-year return period).

Wind speed data downloaded on August 24, 2023 from:https://www.ncei.noaa.gov/access/search/data-search/localclimatological-data 50% exceedance in
50 years (72.6-year
annual return period)
Maximum in record
Wind Rose - Sacramento International Airport (SMF)
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-Sac International (SMF).xlsm

34.4 mph @ 20°

53.4 mph @ 140°

53.3 mph @ 180°
0 102030405060
360
10 20
30 40
50 60
70 8090
100
110
120
130
140
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160
170180
190
200
210
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230
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250
260270
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340

72.6-year Speed 350by Wind Direction
Wind speed data downloaded on August 24, 2023 from:https://www.ncei.noaa.gov/access/search/data-search/localclimatological-dataWind speeds shown are2-minute-average speeds observed 20 feet above groundat Sacramento International Airport (SMF) with a 50% chance of being exceeded in a 50-year period (equivalent to a 72.6-year return period). 50% exceedance in
50 years
Maximum in record
Wind Rose - Comparison of 4 Sacramento Area Airport
s
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-4 Airports Comparison.xlsx 0 10203040506070
360
10 20
30 40
50 60
70 80
90 100
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Mather Airport (MHR)McClellan Airport (MCC)Sacramento Executive Airport (SAC)Sacramento International Airport (SMF)

72.6-year Observed 2-minute Speed (mph) by Wind Direction STATION NAME(S) LATITUDE LONGITUDE Lat-Long COUNT
72483023232 SACRAMENTO AIRPORT ASOS, CA US 38.5069 -121.495 38.5069N,121.495W 56490572483323206 SACRAMENTO MATHER AFB, CA US 38.56667 -121.3 38.56667N,121.3W 20510872483399999 SACRAMENTO MATHER FL, CA US 38.555 -121.297 38.555N,121.297W 4216072483523206 SACRAMENTO MATHER AFB, CA US 38.56667 -121.3 38.56667N,121.3W 44151272483623208 SACRAMENTO MCCLELLAN AFB, CA US 38.66667 -121.4 38.66667N,121.4W 81790772483699999 MC CLELLAN AFLD, CA US 38.667639 -121.400611 38.667639N,121.400611W 2500572483993225 SACRAMENTO METROPOLITAN AIRPORT, CA US 38.69556 -121.58972 38.69556N,121.58972W 46715472483999999 SACRAMENTO INTERNATIONAL, CA US 38.683 -121.583 38.683N,121.583W 3644899999923232 SACRAMENTO EXECUTIVE AIRPORT, CA US 38.5069 -121.495 38.5069N,121.495W 17675499999923271 SACRAMENTO 5 ESE, CA US 38.5552 -121.4183 38.5552N,121.4183W 16012 TOTAL 2792965
Start End Location Observations
1939-11-09 2023-08-23 McClellan Airfield 842,9121941-09-01 2023-08-23 Mather Air Force Base 688,7801947-07-01 2023-08-23 Sacramento Executive 741,6591973-01-01 2023-08-23 Sacramento International 503,602 Eliminated, no valid wind speed observations >>> 1996-07-02 2023-08-22 Sac State 16,012 TOTAL 2,792,965
FILTERED 2,776,196

SACRAMENTO AIRPORT ASOS, CA US

SACRAMENTO MATHER AFB, CA US

SACRAMENTO MATHER FL, CA US

SACRAMENTO MATHER AFB, CA US
SACRAMENTO MCCLELLAN …

MC CLELLAN AFLD, CA US

SACRAMENTO METROPOLITAN AIRPORT, CA US

SACRAMENTO INTERNATIONAL, CA US

SACRAMENTO EXECUTIVE AIRPORT, CA US
SACRAMENTO 5 ESE,
CA US

38.338.438.538.638.738.838.9
-121.8 -121.7 -121.6 -121.5 -121.4 -121.3 -121.2 -121.1 Wind Rose - Comparison of 4 Sacramento Area Airports

72.6-year design wind speeds (mph)
Airport 360 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 Mather Airport (MHR) 38.5667 -121.3000 1968959.97 6761812.02 35.8 32.7 31.4 31.1 39.0 26.4 20.6 31.7 43.4 43.7 42.4 60.7 50.8 54.1 50.3 50.7 40.0 42.1 39.1 41.7 35.3 41.7 34.5 33.0 45.7 33.0 33.5 31.3 31.2 29.9 37.7 43.0 40.7 40.4 45.2 43.0 McClellan Airport (MCC) 38.6676 -121.4006 2005524.44 6732803.60 32.1 35.1 30.4 37.4 28.5 29.4 23.6 21.4 22.9 21.5 26.0 27.3 38.2 40.4 45.8 51.9 53.0 46.3 48.3 33.9 31.6 34.9 34.7 28.8 28.4 26.5 27.9 30.5 29.6 31.2 28.1 33.2 34.2 37.2 37.7 35.9 Sacramento Executive Airport (SAC) 38.5069 -121.4950 1946823.64 6706179.94 29.8 27.2 29.5 29.3 20.6 17.7 17.9 14.9 17.7 27.2 21.4 24.2 36.2 37.9 41.8 39.1 33.6 32.3 28.5 27.6 31.3 31.5 32.6 30.8 27.0 23.6 28.6 23.8 23.9 25.2 28.8 29.4 33.5 36.2 34.9 36.3 Sacramento International Airport (SMF) 38.6830 -121.5830 2010827.37 6680704.01 36.0 32.3 34.4 26.9 30.4 29.7 23.5 27.1 20.3 27.8 32.8 52.2 40.7 48.8 53.4 48.2 50.5 38.6 53.3 34.6 38.3 33.2 35.6 30.9 28.7 31.6 30.0 30.5 29.3 29.9 38.6 38.4 38.7 39.9 40.1 39.4 Site No.

Latitude (deg)
Longitude (deg)
Northing (feet)
Easting (feet) 360 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 22 38.59924063 -121.50487552 1980436.19 6703170.80 33 32 31 31 28 25 21 23 24 29 29 39 40 44 47 47 44 39 42 34 34 35 34 31 31 28 30 29 28 29 33 35 36 38 39 38 23 38.59895197 -121.48053232 1980369.91 6710128.31 33 32 31 31 29 25 21 23 25 29 29 38 41 44 47 47 44 40 42 34 34 35 34 31 31 28 30 29 28 29 33 35 36 38 39 3824 38.58732959 -121.46243046 1976167.43 6715326.59 33 32 31 31 29 25 21 23 25 29 29 38 41 44 47 47 44 40 41 34 34 35 34 31 32 28 30 29 28 29 32 35 36 38 39 3825 38.58146472 -121.43850189 1974072.96 6722179.32 33 32 31 32 29 25 21 23 26 30 30 39 41 44 47 47 44 40 41 34 34 35 34 31 32 28 30 29 28 29 32 35 36 38 39 3826 38.57099967 -121.42392033 1970287.96 6726371.68 33 32 31 32 29 25 21 23 26 30 30 39 41 45 47 47 43 40 41 34 34 35 34 31 33 28 30 29 28 29 33 35 36 38 39 3827 38.55891232 -121.41774403 1965897.34 6728165.67 33 31 31 31 29 25 21 23 27 31 30 39 41 45 47 47 43 39 40 34 34 35 34 31 33 28 30 29 28 29 33 35 36 38 39 3928 38.56382598 -121.38892809 1967740.85 6736393.39 33 32 31 32 31 25 21 24 29 32 32 42 43 46 47 48 43 40 41 35 34 36 34 31 34 29 30 29 29 29 33 37 37 38 40 3929 38.57095481 -121.35413745 1970405.76 6746322.41 34 32 31 32 33 26 21 26 32 35 34 47 45 48 48 49 43 41 41 37 34 38 34 31 37 30 31 30 29 29 34 38 38 39 41 4030 38.59293814 -121.50616237 1978138.98 6702815.51 33 31 31 31 28 25 21 23 24 29 29 38 40 44 47 47 44 39 42 33 34 35 34 31 31 28 30 28 28 29 33 35 36 38 39 3831 38.58164341 -121.50683356 1974024.69 6702646.00 33 31 31 31 28 25 21 22 24 29 29 38 40 44 47 46 43 39 41 33 34 34 34 31 31 28 30 28 28 28 32 35 36 38 39 3832 38.55835024 -121.51456933 1965530.00 6700480.00 32 30 31 31 27 23 20 21 23 29 28 36 40 43 46 45 41 38 38 32 33 34 34 31 30 27 29 27 27 28 32 34 36 38 38 3833 38.54436287 -121.50987779 1960443.36 6701849.01 32 30 31 30 26 22 20 20 22 29 27 34 39 42 45 44 40 37 37 31 33 34 34 31 30 26 29 27 27 27 31 33 35 37 37 3834 38.52509717 -121.52622086 1953402.48 6697211.40 32 29 30 30 25 21 20 19 21 28 26 32 39 41 45 43 39 36 35 31 33 33 33 31 29 26 29 26 26 27 31 32 35 37 37 3735 38.52010533 -121.52332639 1951588.91 6698048.99 31 29 30 30 24 21 19 19 21 28 25 31 38 41 44 43 38 35 34 30 33 33 33 31 29 26 29 26 26 27 31 32 35 37 37 3736 38.51884345 -121.52429724 1951127.91 6697773.63 31 29 30 30 24 21 19 19 21 28 25 31 38 41 44 43 38 35 34 30 33 33 33 31 29 26 29 26 26 27 31 32 35 37 37 3737 38.50715016 -121.55545875 1946824.36 6688878.92 32 30 31 30 26 22 20 20 22 29 27 34 39 42 45 44 40 36 36 31 33 34 34 31 30 26 29 27 26 27 31 33 35 37 37 3838 38.49245720 -121.55435008 1941475.10 6689222.42 32 30 31 30 26 22 20 20 22 29 27 34 39 42 45 44 40 36 36 31 33 34 34 31 30 26 29 27 26 27 31 33 35 37 37 3839 38.48013901 -121.54482808 1937002.63 6691970.21 32 30 31 30 25 22 20 20 22 29 26 33 39 42 45 44 39 36 36 31 33 34 34 31 30 26 29 27 26 27 31 33 35 37 37 3840 38.47418494 -121.50961306 1934886.75 6702062.64 31 29 30 30 25 21 19 19 22 29 26 32 39 41 45 43 38 36 35 31 33 33 33 31 30 26 29 26 26 27 31 32 35 37 37 3741 38.47272358 -121.50618967 1934359.87 6703045.60 31 29 30 30 25 21 19 19 22 29 26 32 39 41 45 43 38 36 35 31 33 33 33 31 30 26 29 26 26 27 31 32 35 37 37 3742 38.46132549 -121.50242566 1930214.86 6704145.93 32 30 30 30 25 22 20 20 22 29 26 33 39 42 45 44 39 36 36 31 33 34 34 31 30 26 29 27 26 27 31 33 35 37 37 38 Inverse Distance-Weighted Average of 72.6-year Design Wind Speeds (mph) by Wind Direction (degrees) Latitude Wind Direction (degrees)
(deg)
Longitude
(deg)
Northing
(feet)
Easting
(feet)
X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-4 Airports Comparison.xlsx Count Mean Std Dev
Sample 1 1692 33.3 6.5Sample 2 144 34.3 8.6 Maximum Difference, Dn,m = 0.08 Combine
Sites Airports Sites Airports Unique Sites Airports Significance Value Cum Freq Value Cum Freq Half-Rank Stepwise Cum Freq Value Cum Freq Value Values RankMin RankMax RankMin RankMax Level K-S Dtest Result Explanation 1 18.53191 0.001 1 14.93418 0.007 1.5 1 0.000591 18.53191 0.006944 14.93418 14.93418 0.000591 0.000591 0.006944 0.013889 10% 0.07 Reject Ho With 10% significance, the samples come from different population distributions.2 18.54209 0.001 2 17.66469 0.014 2.5 1.5 0.001182 18.53191 0.013889 14.93418 17.66469 0.000591 0.000591 0.013889 0.020833 30% 0.08 Accept Ho Null hypothesis cannot be rejected at the 30% significance level. (Population distributions assumed equal) 3 19.02618 0.002 3 17.6694 0.021 3.5 2 0.001182 18.54209 0.013889 17.66469 17.6694 0.000591 0.000591 0.020833 0.027778 50% 0.09 Accept Ho Null hypothesis cannot be rejected at the 50% significance level. (Population distributions assumed equal) 4 19.30862 0.002 4 17.86225 0.028 4.5 2.5 0.001773 18.54209 0.020833 17.66469 17.86225 0.000591 0.000591 0.027778 0.034722 90% 0.12 Accept Ho Null hypothesis cannot be rejected at the 90% significance level. (Population distributions assumed equal) 5 19.31349 0.003 5 20.27879 0.035 5.5 3 0.001773 19.02618 0.020833 17.6694 18.53191 0.000591 0.001182 0.034722 0.034722 95% 0.13 Accept Ho Null hypothesis cannot be rejected at the 95% significance level. (Population distributions assumed equal)6 19.37254 0.004 6 20.60272 0.042 6.5 3.5 0.002364 19.02618 0.027778 17.6694 18.54209 0.001182 0.001773 0.034722 0.034722 99.9% 0.18 Accept Ho Null hypothesis cannot be rejected at the 99.9% significance level. (Population distributions assumed equal) 7 19.3738 0.004 7 20.6423 0.049 7.5 4 0.002364 19.30862 0.027778 17.86225 19.02618 0.001773 0.002364 0.034722 0.0347228 19.43269 0.005 8 21.41781 0.056 8.5 4.5 0.002955 19.30862 0.034722 17.86225 19.30862 0.002364 0.002955 0.034722 0.034722 9 19.59521 0.005 9 21.4489 0.063 9.5 5 0.002955 19.31349 0.034722 20.27879 19.31349 0.002955 0.003546 0.034722 0.034722 10 19.6669 0.006 10 21.53211 0.069 10.5 5.5 0.003546 19.31349 0.041667 20.27879 19.37254 0.003546 0.004137 0.034722 0.034722 11 19.67063 0.007 11 22.85644 0.076 11.5 6 0.003546 19.37254 0.041667 20.60272 19.3738 0.004137 0.004728 0.034722 0.03472212 19.67379 0.007 12 23.49787 0.083 12.5 6.5 0.004137 19.37254 0.048611 20.60272 19.43269 0.004728 0.005319 0.034722 0.03472213 19.69367 0.008 13 23.55408 0.090 13.5 7 0.004137 19.3738 0.048611 20.6423 19.59521 0.005319 0.00591 0.034722 0.03472214 19.71212 0.008 14 23.56497 0.097 14.5 7.5 0.004728 19.3738 0.055556 20.6423 19.6669 0.00591 0.006501 0.034722 0.034722 15 19.75209 0.009 15 23.80924 0.104 15.5 8 0.004728 19.43269 0.055556 21.41781 19.67063 0.006501 0.007092 0.034722 0.034722 16 19.75214 0.009 16 23.87066 0.111 16.5 8.5 0.005319 19.43269 0.0625 21.41781 19.67379 0.007092 0.007683 0.034722 0.034722 17 19.77252 0.010 17 24.21986 0.118 17.5 9 0.005319 19.59521 0.0625 21.4489 19.69367 0.007683 0.008274 0.034722 0.03472218 19.8221 0.011 18 25.20598 0.125 18.5 9.5 0.00591 19.59521 0.069444 21.4489 19.71212 0.008274 0.008865 0.034722 0.03472219 19.83377 0.011 19 26.00263 0.132 19.5 10 0.00591 19.6669 0.069444 21.53211 19.75209 0.008865 0.009456 0.034722 0.03472220 19.85449 0.012 20 26.37852 0.139 20.5 10.5 0.006501 19.6669 0.076389 21.53211 19.75214 0.009456 0.010047 0.034722 0.03472221 19.8756 0.012 21 26.46959 0.146 21.5 11 0.006501 19.67063 0.076389 22.85644 19.77252 0.010047 0.010638 0.034722 0.034722 22 19.88717 0.013 22 26.90586 0.153 22.5 11.5 0.007092 19.67063 0.083333 22.85644 19.8221 0.010638 0.011229 0.034722 0.03472223 19.90336 0.014 23 27.02288 0.160 23.5 12 0.007092 19.67379 0.083333 23.49787 19.83377 0.011229 0.01182 0.034722 0.03472224 19.90582 0.014 24 27.11699 0.167 24.5 12.5 0.007683 19.67379 0.090278 23.49787 19.85449 0.01182 0.012411 0.034722 0.03472225 19.91678 0.015 25 27.17172 0.174 25.5 13 0.007683 19.69367 0.090278 23.55408 19.8756 0.012411 0.013002 0.034722 0.03472226 19.94764 0.015366 26 27.20237 0.180556 26.5 13.5 0.008274 19.69367 0.097222 23.55408 19.88717 0.013002 0.013593 0.034722 0.03472227 19.95381 0.015957 27 27.31433 0.1875 27.5 14 0.008274 19.71212 0.097222 23.56497 19.90336 0.013593 0.014184 0.034722 0.03472228 20.05049 0.016548 28 27.62835 0.194444 28.5 14.5 0.008865 19.71212 0.104167 23.56497 19.90582 0.014184 0.014775 0.034722 0.03472229 20.25129 0.017139 29 27.75355 0.201389 29.5 15 0.008865 19.75209 0.104167 23.80924 19.91678 0.014775 0.015366 0.034722 0.03472230 20.30085 0.01773 30 27.89688 0.208333 30.5 15.5 0.009456 19.75209 0.111111 23.80924 19.94764 0.015366 0.015957 0.034722 0.034722 31 20.61294 0.018322 31 28.12624 0.215278 31.5 16 0.009456 19.75214 0.111111 23.87066 19.95381 0.015957 0.016548 0.034722 0.03472232 20.8455 0.018913 32 28.39912 0.222222 32.5 16.5 0.010047 19.75214 0.118056 23.87066 20.05049 0.016548 0.017139 0.034722 0.034722 33 20.96342 0.019504 33 28.46479 0.229167 33.5 17 0.010047 19.77252 0.118056 24.21986 20.25129 0.017139 0.01773 0.034722 0.034722 34 20.98514 0.020095 34 28.52555 0.236111 34.5 17.5 0.010638 19.77252 0.125 24.21986 20.27879 0.01773 0.01773 0.034722 0.04166735 20.996 0.020686 35 28.59139 0.243056 35.5 18 0.010638 19.8221 0.125 25.20598 20.30085 0.01773 0.018322 0.041667 0.041667 36 21.00825 0.021277 36 28.69397 0.25 36.5 18.5 0.011229 19.8221 0.131944 25.20598 20.60272 0.018322 0.018322 0.041667 0.04861137 21.01743 0.021868 37 28.75568 0.256944 37.5 19 0.011229 19.83377 0.131944 26.00263 20.61294 0.018322 0.018913 0.048611 0.04861138 21.03414 0.022459 38 28.84455 0.263889 38.5 19.5 0.01182 19.83377 0.138889 26.00263 20.6423 0.018913 0.018913 0.048611 0.055556 39 21.04643 0.02305 39 29.26847 0.270833 39.5 20 0.01182 19.85449 0.138889 26.37852 20.8455 0.018913 0.019504 0.055556 0.05555640 21.07935 0.023641 40 29.33978 0.277778 40.5 20.5 0.012411 19.85449 0.145833 26.37852 20.96342 0.019504 0.020095 0.055556 0.05555641 21.08345 0.024232 41 29.37028 0.284722 41.5 21 0.012411 19.8756 0.145833 26.46959 20.98514 0.020095 0.020686 0.055556 0.055556 42 21.08544 0.024823 42 29.43373 0.291667 42.5 21.5 0.013002 19.8756 0.152778 26.46959 20.996 0.020686 0.021277 0.055556 0.05555643 21.12694 0.025414 43 29.48824 0.298611 43.5 22 0.013002 19.88717 0.152778 26.90586 21.00825 0.021277 0.021868 0.055556 0.05555644 21.14837 0.026005 44 29.573 0.305556 44.5 22.5 0.013593 19.88717 0.159722 26.90586 21.01743 0.021868 0.022459 0.055556 0.05555645 21.15514 0.026596 45 29.66993 0.3125 45.5 23 0.013593 19.90336 0.159722 27.02288 21.03414 0.022459 0.02305 0.055556 0.05555646 21.15522 0.027187 46 29.83557 0.319444 46.5 23.5 0.014184 19.90336 0.166667 27.02288 21.04643 0.02305 0.023641 0.055556 0.05555647 21.19643 0.027778 47 29.85804 0.326389 47.5 24 0.014184 19.90582 0.166667 27.11699 21.07935 0.023641 0.024232 0.055556 0.05555648 21.20078 0.028369 48 29.88697 0.333333 48.5 24.5 0.014775 19.90582 0.173611 27.11699 21.08345 0.024232 0.024823 0.055556 0.055556 Calculate Kolmogorov-Smirnov (K-S) Test to evaluate the statistical significance of wind speed differences (for all wind directions) due to smoothing that results from distance- USACE RMC-TR-2021-02 (PDF p17):
weighted averaging of airport data to the locations of the analysis sites. 0 0.10.20.30.40.50.60.70.80.9
1 10 15 20 25 30 35 40 45 50 55 60
Sites Airports Step-Wise Cumulative Distribution Functions X:\1941500\120265.00\TECH\Dsgn\Wind and Wave\Phase 3\Wind Data\Wind Speed and Direction-4 Airports Comparison.xlsx Exhibit 5. Setup and Runup Illustration
Exhibit 5 Figure
9 APPENDIX D. Additional ASLS Documentation
APPENDIX D1. Old Sacramento and Riverwalk Promenade
Floodwall Remediation Drawings

APPENDIX D2. Lower American River, Raising Existing Levee Near Mayhew Drain Drawings, USACE File No. 1-4-509
RECORD DRAWING:

THESE DRAWINGS REPRESENT THE LATEST RECORD SET AS OF JULY 18,2013. THEY WERE CERTIFIEDAND ISSUED. FOR CONSTRUCTION ON MAY 30, 2007.

Sacramento City CouncilOctober 21, 2025

Sacramento City Council
October 21, 2025