San Marcos City Council
June 27, 2023

Appendix E
Geotechnical Investigation

131 Calle Iglesia, Suite 200, San Clemente, CA 92672 (949) 369-6141 www.lgcgeotechnical.com

—Ž›ͳͷǡʹͲʹͳ  ”‘Œ‡
–‘Ǥʹͳͳ͵ͺǦͲͳ
•Ǥ
‘Šƒƒ”‘‘‡”
MeritageHomes
ͷ‡–‡”•ƒ›‘ǡ—‹–‡͵ͳͲ

”˜‹‡ǡͻʹ͸Ͳ͸
Subject: Geotechnical Evaluation for the Proposed “Las Posas” Residential Development Located North of the Intersection of North Mission Road and Las Posas Road, San Marcos,California



ƒ

‘”†ƒ
‡™‹–Š›‘—””‡“—‡•–ǡ

‡‘–‡
Š‹
ƒŽǡ

ǤŠƒ•’‡”ˆ‘”‡†ƒ‰‡‘–‡
Š‹
ƒŽ‡˜ƒŽ—ƒ–‹‘‘ˆ–Š‡

—””‡–
‘†‹–‹‘• ‘ˆ –Š‡ –‡ƒ”†”‘’ •Šƒ’‡† ’”‘’‡”–› Ž‘
ƒ–‡† ‘”–Š ‘ ˆ – Š ‡ ‹  – ‡ ” • ‡
– ‹ ‘  ‘ ˆ  ‘ ” – Š  ‹ • • ‹ ‘  
‘ƒ†ƒ†ƒ•‘•ƒ•‘ƒ†Ž‘
ƒ–‡†‹ƒƒ”
‘•ǡƒŽ‹ˆ‘”‹ƒǤŠ‹•‰‡‘–‡
Š‹
ƒŽ”‡’‘”–’”‡•‡–•–Š‡”‡•—Ž–•
‘ ˆ ‘ — ” ‡ ˜ ƒ Ž — ƒ – ‹ ‘  ƒ  † ‰ ‡ ‘ – ‡
Š  ‹
ƒ Ž ƒ  ƒ Ž › • ‹ • ƒ  † ’ ” ‘ ˜ ‹ † ‡ • ƒ • —   ƒ ” › ‘ ˆ ‘ — ”  ‘ 
Ž — • ‹ ‘  • ƒ  † 
”‡
‘‡†ƒ–‹‘•”‡Žƒ–‹˜‡–‘–Š‡’”‘’‘•‡††‡˜‡Ž‘’‡–‘ˆ–Š‡•‹–‡Ǥ 
‡•‹
‡”‡Ž›ƒ’’”‡
‹ƒ–‡–Š‹•‘’’‘”–—‹–›–‘„‡‘ˆ•‡”˜‹
‡ǤŠ‘—Ž†›‘—Šƒ˜‡ƒ›“—‡•–‹‘•ǡ’Ž‡ƒ•‡†‘‘–
Š‡•‹–ƒ–‡–‘
‘–ƒ
––Š‹•‘ˆˆ‹
‡Ǥ

‡•’‡
–ˆ—ŽŽ›ǡ

LGCGeotechnical,Inc.




‡Ž„›–›Ž‡”ǡͺ͹Ͷͳ͵ ƒ””›
”ƒŠƒǡ
ʹ͹Ͷͻ
”‘Œ‡
–‰‹‡‡”  ‡‹‘”–ƒˆˆ
‡‘Ž‘‰‹•–

Ȁ
Ȁƒ

‹•–”‹„—–‹‘ǣ ȋͳȌ††”‡••‡‡ȋͳ‡Ž‡
–”‘‹

‘’›Ȍ
ȋͳȌ
—•ƒ‡”Ƭ••‘
‹ƒ–‡•ȋͳ‡Ž‡
–”‘‹

‘’›Ȍ
––ǣ›ƒƒ”–‹


6 $7 ,$ 17 5( 22 ),) /&$
 
1R

Project No. 14068-01 Page i July 15, 2015
TABLEOFCONTENTS

SectionPage 

1.0 INTRODUCTION 
ͳǤͳ 
‘’‡‘ˆ‡”˜‹
‡•  ͳǤʹ ”‘Œ‡
–‡•
”‹’–‹‘ƒ†ƒ
‰”‘—† 

2.0 LIMITEDGEOTECHNICALEVALUATION 
ʹǤͳ —„•—”ˆƒ
‡š’Ž‘”ƒ–‹‘  ʹǤʹ
ˆ‹Ž–”ƒ–‹‘‡•–‹‰   ʹǤ͵ ƒ„‘”ƒ–‘”›‡•–‹‰  

3.0 GEOTECHNICALCONDITIONS 
͵Ǥͳ ‹–‡
‡‘Ž‘‰›   ͵ǤͳǤͳŽ†‡””–‹ˆ‹
‹ƒŽ ‹ŽŽȋƒ’›„‘ŽǦƒˆ‘Ȍ   ͵ǤͳǤʹ —ƒ–‡”ƒ”›Ž†‡”ŽŽ—˜‹—ȋƒ’›„‘ŽǦ
‘ŽȌ   ͵Ǥʹ ‡‹•‹
‡•‹‰”‹–‡”‹ƒ   ͵Ǥ͵ ƒ†•Ž‹†‡•   ͵ǤͶ
”‘—†™ƒ–‡”  ͵Ǥͷ ƒ—Ž–‹‰   ͵ǤͷǤͳ —”
Š‹‰ƒ†ŠƒŽŽ‘™
”‘—†—’–—”‡ ͵ǤͷǤʹ ‹“—‡ˆƒ
–‹‘ƒ†›ƒ‹
‡––Ž‡‡–   ͵ǤͷǤ͵ ƒ–‡”ƒ
Ž’”‡ƒ†‹‰   ͵ǤͷǤͶ •—ƒ‹•ƒ†‡‹
Š‡• 
͵Ǥ͸ ‹’’ƒ„‹Ž‹–›  
͵Ǥ͹ ˜‡”•‹œ‡†ƒ–‡”‹ƒŽ  
͵Ǥͺ š’ƒ•‹˜‡‘‹ŽŠƒ”ƒ
–‡”‹•–‹
•  
͵Ǥͻ ‘””‘•‹‘‘–‡–‹ƒŽ  

4.0 CONCLUSIONS 

5.0 PRELIMINARYRECOMMENDATIONS 
ͷǤͳ ‹–‡ƒ”–Š™‘”  ͷǤͳǤͳ ‹–‡”‡’ƒ”ƒ–‹‘  ͷǤͳǤʹ ‡‘˜ƒŽ‡’–Š•  ͷǤͳǤ͵ —–Ȁ ‹ŽŽ”ƒ•‹–‹‘•   ͷǤͳǤͶ ‡‘˜ƒŽ‘––‘•ƒ†—„‰”ƒ†‡”‡’ƒ”ƒ–‹‘  ͷǤͳǤͷ ‡’‘”ƒ”›š
ƒ˜ƒ–‹‘   ͷǤͳǤ͸ ƒ–‡”‹ƒŽˆ‘” ‹ŽŽ  ͷǤͳǤ͹ ‹ŽŽŽƒ
‡‡–ƒ†‘’ƒ
–‹‘  ͷǤͳǤͺ ”‡
Šƒ
ˆ‹ŽŽƒ†‘’ƒ
–‹‘   ͷǤʹ Ž‘’‡–ƒ„‹Ž‹–›   ͷǤʹǤͳ Ž‘’‡ƒ‹–‡ƒ
‡
—‹†‡Ž‹‡•   Project No. 21138-01 Page ii July 15, 2021
ͷǤ͵ ”‡Ž‹‹ƒ”› ‘—†ƒ–‹‘‡•‹‰ƒ”ƒ‡–‡”•   ͷǤ͵Ǥͳ ”‡Ž‹‹ƒ”›‘˜‡–‹‘ƒŽ ‘—†ƒ–‹‘‡•‹‰ƒ”ƒ‡–‡”•  ͷǤ͵Ǥʹ ”‡Ž‹‹ƒ”›‘•–Ǧ‡•‹‘‡† ‘—†ƒ–‹‘‡•‹‰ƒ”ƒ‡–‡”•  ͷǤ͵Ǥ͵ ‘•–‡•‹‘‡† ‘—†ƒ–‹‘—„‰”ƒ†‡”‡’ƒ”ƒ–‹‘ƒ†ƒ‹–‡ƒ ‡  
ͷǤ͵ǤͶ Žƒ„†‡”Žƒ›‡–
—‹†‡Ž‹‡•  
ͷǤ͵Ǥͷ ‘‹Ž‡ƒ”‹‰  
ͷǤ͵Ǥ͸ ‘—†ƒ–‹‘‡–„ƒ
ˆ”‘‘’Ǧ‘ˆǦŽ‘’‡ƒ†‘––‘Ǧ‘ˆǦŽ‘’‡   ͷǤ͵Ǥ͹ ‘‘–‹‰Ȁ ‘—†ƒ–‹‘•š
ƒ˜ƒ–‹‘•  ͷǤͶ ƒ–‡”ƒŽƒ”–Š”‡••—”‡•ƒ†‡–ƒ‹‹‰ƒŽŽ‡•‹‰‘•‹†‡”ƒ–‹‘•   ͷǤͷ ‡
‡•ƒ† ”‡‡•–ƒ†‹‰ƒŽŽ•  ͷǤ͸ —„•—”ˆƒ
‡ƒ–‡”
ˆ‹Ž–”ƒ–‹‘  ͷǤ͹ ”‡Ž‹‹ƒ”›ƒ˜‡‡–‡
–‹‘  ͷǤͺ ‘””‘•‹˜‹–›–‘‘
”‡–‡ƒ†‡–ƒŽ   ͷǤͻ ‘•–”—
–—”ƒŽ‘
”‡–‡ Žƒ–™‘”  ͷǤͳͲ ‘–”‘Ž‘ˆ—”ˆƒ
‡ƒ–‡”ƒ†”ƒ‹ƒ‰‡‘–”‘Ž   ͷǤͳͳ ‘•–”—
–‹‘„•‡”˜ƒ–‹‘ƒ†‡•–‹‰  

6.0 LIMITATIONS 


LISTOFFIGURES,TABLESANDAPPENDICES

Sheets

Š‡‡–ͳȂ
‡‘–‡
Š‹
ƒŽƒ’ȋ‡ƒ”‘ˆ‡š–Ȍ

Figures

‹‰—”‡ͳȂ‹–‡‘
ƒ–‹‘ƒ’ȋ‡ƒ”‘ˆ‡š–Ȍ
‹‰—”‡ʹȂ‡
‘‡†‡†‡–ƒ‹‹‰ƒŽŽƒ
ˆ‹ŽŽ‡–ƒ‹Žȋ‡ƒ”‘ˆ‡š–Ȍ

Tables

ƒ„Ž‡ͳȂ‡‹•‹
‡•‹‰ƒ”ƒ‡–‡”•ȋƒ‰‡͸Ȍ
ƒ„Ž‡ʹȂ
‡‘–‡
Š‹
ƒŽ ‘—†ƒ–‹‘‡•‹‰ƒ”ƒ‡–‡”•ȋƒ‰‡ͳͺȌ
ƒ„Ž‡͵Ȃƒ–‡”ƒŽƒ”–Š”‡••—”‡•Ȃ‡Ž‡
–ƒ†ƒ
ˆ‹ŽŽȋƒ‰‡ʹͳȌ
ƒ„Ž‡ͶȂ—ƒ”›‘ˆ
ˆ‹Ž–”ƒ–‹‘‡•–‹‰ȋƒ‰‡ʹ͵Ȍ
ƒ„Ž‡ͷȂ
ˆ‹Ž–”ƒ–‹‘ ƒ
–‘”•‘ˆƒˆ‡–›ȋƒ‰‡ʹ͵Ȍ
ƒ„Ž‡͸Ȃ‹‹—‡•‹‰ˆ‘””‡Ž‹‹ƒ”›ƒ˜‡‡–‡
–‹‘ȋƒ‰‡ʹͶȌ
ƒ„Ž‡͹Ȃ‘•–”—
–—”ƒŽ‘
”‡–‡ Žƒ–™‘”ˆ‘”‡†‹—š’ƒ•‹‘‘–‡–‹ƒŽȋƒ‰‡ʹͷȌ 
Appendices

’’‡†‹šȂ‡ˆ‡”‡
‡•
’’‡†‹šȂ‘”‹‰Ƭ‡•–‹–‘‰•
’’‡†‹šȂƒ„‘”ƒ–‘”›‡•–‡•—Ž–•
’’‡†‹šȂ
‡‡”ƒŽƒ”–Š™‘”ƒ†
”ƒ†‹‰’‡
‹ˆ‹
ƒ–‹‘•ˆ‘”‘—‰Š
”ƒ†‹‰

Project No. 21138-01 Page 1 July 15, 2021

1.0INTRODUCTION



‡‘–‡
Š‹
ƒŽŠƒ•’‡”ˆ‘”‡†ƒ‰‡‘–‡
Š‹
ƒŽ‡˜ƒŽ—ƒ–‹‘–‘ƒ••‡••–Š‡
—””‡–‰‡‘–‡
Š‹
ƒŽ
‘†‹–‹‘•
ˆ‘”–Š‡’”‘Œ‡
–•‹–‡Ž‘
ƒ–‡†‘”–Š‘ˆ–Š‡‹–‡”•‡
–‹‘‘ˆ‘”–Š‹••‹‘‘ƒ†ƒ†ƒ•‘•ƒ•‘ƒ†Ž‘
ƒ–‡†‹
ƒ ƒ”
‘•ǡ ƒŽ‹ˆ‘”‹ƒ ȋ•‡‡ ‹–‡ ‘
ƒ–‹‘ ƒ’ǡ ‹‰—”‡ ͳȌǤ ‡ —†‡”•–ƒ† –Šƒ– –Š‡ ’”‘’‡”–› ‹• –‘ „‡ †‡˜‡Ž‘’‡† ˆ‘” —Ž–‹Ǧ•–‘”›ǡ •‹‰Ž‡Ǧˆƒ‹Ž›ǡ ƒ––ƒ
Š‡† ”‡•‹†‡–‹ƒŽ Š‘‡ •‹–‡•ǡ ’”‹˜ƒ–‡ †”‹˜‡•ǡ ’ƒ”‹‰ǡ —  † ‡ ” ‰ ” ‘ —  † — – ‹ Ž ‹ – ‹ ‡ • ƒ  † ƒ • • ‘ ‹ ƒ – ‡ † ‹  ’ ” ‘ ˜ ‡ ‡  – • Ǥ  Š ‹ • ” ‡’ ‘ ” – ’”‡•‡–• –Š‡ ”‡•—Ž–• ‘ˆ ‘—” ‡˜ƒŽ—ƒ–‹‘ ƒ†‰‡‘–‡
Š‹
ƒŽƒƒŽ›•‹•ƒ†’”‘˜‹†‡•ƒ•—ƒ”›‘ˆ‘—”
‘
Ž—•‹‘•ƒ†”‡
‘‡†ƒ–‹‘•”‡Žƒ–‹˜‡–‘
–Š‡’”‘’‘•‡††‡˜‡Ž‘’‡–‘ˆ–Š‡•‹–‡Ǥ



1.1 ScopeofServices

Š‡
‘
‡’–—ƒŽ •‹–‡ ’Žƒ ’”‡’ƒ”‡† „›
—•ƒ‡” Ƭ ••‘
‹ƒ–‡• ȋ
— •ƒ‡”ǡ ʹͲʹͳȌ Šƒ• „‡‡
—–‹Ž‹œ‡†ƒ•ƒ„ƒ•‡ƒ’ˆ‘”’”‡•‡–ƒ–‹‘‘ˆ–Š‡†ƒ–ƒ‘„–ƒ‹‡†‹–Š‹••–—†›ȋ•‡‡Š‡‡–ͳȌǤ 
—”•
‘’‡‘ˆ•‡”˜‹
‡•‹
Ž—†‡†ǣ

x ‡˜‹‡™‘ˆ’‡”–‹‡–”‡ƒ†‹Ž›ƒ˜ƒ‹Žƒ„Ž‡‰‡‘–‡
Š‹
ƒŽ”‡’‘”–•ƒ†‰‡‘Ž‘‰‹
ƒ’•ȋ’’‡†‹šȌǢ
x š
ƒ˜ƒ–‹‘ǡ •ƒ’Ž‹‰ǡ ƒ† Ž‘‰‰‹‰ ‘ˆ ‹‡ ͺǦ‹
Š ‡š’Ž‘”ƒ–‘”› „‘”‹‰• ƒ– •‡Ž‡
–‡† Ž‘
ƒ–‹‘•
ƒ
”‘••–Š‡•‹–‡Ǣ
x š
ƒ˜ƒ–‹‘ǡ•ƒ’Ž‹‰ǡƒ†Ž‘‰‰‹‰‘ˆˆ‹˜‡‡š’Ž‘”ƒ–‘”›–‡•–’‹–•ƒ–•‡Ž‡ –‡†Ž‘
ƒ–‹‘•ƒ
”‘••–Š‡
•‹–‡Ǣ
x ‘˜‡”•‹‘‘ˆ–Š‡–Š”‡‡‘ˆ–Š‡„‘”‹‰•ˆ‘”‹ˆ‹Ž–”ƒ–‹‘–‡•–‹‰Ǣ x ‡
‘ƒ‹••ƒ
‡Ž‡˜‡Ž‰‡‘Ž‘‰‹
ƒ’’‹‰‘ˆ–Š‡•‹–‡Ǣ
x ”‡’ƒ”ƒ–‹‘‘ˆƒ
‡‘–‡
Š‹
ƒŽƒ’ȋŠ‡‡–ͳȌ†‡’‹
–‹‰–Š‡‹–‡”’”‡–‡†‰‡‘Ž‘‰‹

‘†‹–‹‘•‘
–Š‡•‹–‡Ǣ
x
‡‘–‡
Š‹
ƒŽƒƒŽ›•‹•‘ˆ–Š‡†ƒ–ƒ”‡˜‹‡™‡†Ȁ‘„–ƒ‹‡†Ǣƒ†
x ”‡’ƒ”ƒ–‹‘ ‘ˆ –Š‹• ”‡’‘”– ’”‡•‡–‹‰ ‘—” ˆ‹†‹‰•ǡ ‘
Ž—•‹‘• ǡ ƒ† ’”‡Ž‹‹ƒ”›
”‡
‘‡†ƒ–‹‘•™‹–Š”‡•’‡
––‘–Š‡’”‘’‘•‡†•‹–‡†‡˜‡Ž‘’‡–Ǥ



1.2 ProjectDescriptionandBackground

Š‡•‹–‡‹•ƒ–‡ƒ”†”‘’Ǧ•Šƒ’‡†’”‘’‡”–›‘”‹‰‹ƒŽŽ›‰”ƒ†‡†ˆ‘” ‘ ‡”
‹ƒŽ†‡˜‡Ž‘’‡–ǤŠ‡•‹–‡
‹ •
— ”” ‡  – Ž ›—  †‡ ˜ ‡ Ž ‘ ’ ‡ †ƒ  †‹ •„ ‘—  †– ‘ – Š ‡ ‡ƒ •– „ › ƒ  ƒ • ‘ •ƒ• ‘ƒ†ǡ –‘ –Š‡ ™‡•– „› ‡š‹•–‹‰ ”‡•‹†‡–‹ƒŽ†‡˜‡Ž‘’‡–ǡƒ‡š‹•–‹‰ƒ†‘”–Š‹••‹‘‘ƒ†–‘–Š‡•‘—–Šǡƒ†–‘–Š‡‘”–Š „› •‹‹Žƒ” —†‡˜‡Ž‘’‡† ’”‘’‡”–› ƒ† ‡š‹•–‹‰ ”‡•‹†‡–‹ƒŽ †‡˜‡Ž‘’‡–Ǥ ƒ•‡† ‘ ƒ•Ǧ‰”ƒ†‡† ‰”ƒ†‹‰ ’Žƒ• ƒ† Š‹•–‘”‹
 ƒ‡”‹ƒŽ ’Š‘–‘•ǡ –Š‡ ‰”ƒ†‹‰ ƒ
–‹˜‹–‹‡• ƒ”‡ ‘„•‡”˜‡† „‡–™‡‡ ʹͲͲͺ ƒ†
ʹͲͳͲǤ

‘’‘‰”ƒ’Š‹
ƒŽŽ›ǡ –Š‡ ƒŒ‘”‹–› ‘ˆ –Š‡ •‹–‡ ‹• ”‡Žƒ–‹˜‡Ž› ˆŽƒ– Ž›‹‰ „—– •Ž‘’‡• ‰”ƒ†—ƒŽŽ› –‘ –Š‡ ™‡•– ƒ†•‘—–Š™‡•–ˆ”‘ƒ‡Ž‡˜ƒ–‹‘‘ˆƒ’’”‘š‹ƒ–‡Ž›ͷͺͲˆ‡‡––‘ͷ͹Ͳˆ‡‡–ƒ„‘˜‡‡ƒ•‡ƒŽ‡˜‡Ž™‹–Š ƒ‡š‹•–‹‰ƒ’’”‘š‹ƒ–‡Ž›͵ǣͳȋŠ‘”‹œ‘–ƒŽ–‘˜‡”–‹
ƒŽȌ•Ž‘’‡†‡•
‡†‹‰™‡•–™ƒ”†–‘–Š‡ƒ†Œƒ
‡–
”‡•‹†‡–‹ƒŽ†‡˜‡Ž‘’‡–Ǥ

‡ —†‡”•–ƒ† –Šƒ– –Š‡ ’”‘’‘•‡† ”‡•‹†‡–‹ƒŽ †‡˜‡Ž‘’‡– ‘ˆ –Š‡•‹–‡ ™‹ŽŽ ‹ Ž—†‡ ‰”ƒ†‹‰ ‘ˆ
–Š‡ •‹–‡ ˆ‘”
‘•–”—
–‹‘ ‘ˆ ƒ’’”‘š‹ƒ–‡Ž› ͳ͸ —Ž–‹Ǧˆƒ‹Ž› ”‡•‹†‡–‹ƒŽ •–”— –—”‡•Ǥ
 ƒ††‹–‹‘ǡ

Project No. 21138-01 Page 2 July 15, 2021
‹–‡”‹‘” •–”‡‡–•ǡ ’ƒ”‹‰ǡ ‘’‡Ǧ•’ƒ
‡ ƒ”‡ƒ•ǡ ƒ••‘
‹ƒ–‡† —†‡”‰”‘—† —–‹Ž‹–‹‡•ǡ ƒ† ‘–Š‡”
ƒ••‘
‹ƒ–‡†‹’”‘˜‡‡–•ƒ”‡’”‘’‘•‡†Ǥ

Project No. 21138-01 Page 3 July 15, 2021


2.0LIMITEDGEOTECHNICALEVALUATION


2.1 SubsurfaceExploration

‰‡‘–‡
Š‹
ƒŽˆ‹‡Ž†‡˜ƒŽ—ƒ–‹‘™ƒ•’‡”ˆ‘”‡†„›

‡‘–‡
Š‹
ƒŽ
‘•‹•–‹‰‘ˆ‡š
ƒ˜ƒ–‹‘‘ˆͻ
Š‘ŽŽ‘™Ǧ•–‡ƒ—‰‡”„‘”‹‰•ƒ†ͷ–‡•–’‹–•ǤŠ”‡‡‘ˆ–Š‡„‘”‹‰• ™‡”‡ ‘˜‡”–‡†–‘–‡•–™‡ŽŽ•–‘
’‡”ˆ‘”ˆ‹‡Ž†’‡”
‘Žƒ–‹‘–‡•–‹‰ǡ‘Ž›‘‡‘ˆ–Š‡
‘˜‡”–‡†„‘”‹‰•™ƒ•Ž‘‰‰‡†ƒ†•ƒ’Ž‡†Ǥ

Š‡„‘”‹‰•ȋ
Ǧͳ–Š”‘—‰Š
Ǧ͸ǡ
Ǧͳǡ
ǦʹǡƬ
Ǧ͵Ȍ™‡”‡‡š
ƒ˜ƒ–‡† —•‹‰ƒ–”—
Ǧ‘—–‡††”‹ŽŽ”‹‰
‡“—‹’’‡†™‹–ŠͺǦ‹
ŠǦ†‹ƒ‡–‡”Š‘ŽŽ‘™Ǧ•–‡ƒ—‰‡”•Ǥ‘”‹‰•
Ǧͳ–Š”‘—‰Š
Ǧ͸™‡”‡‡š
ƒ˜ƒ–‡†
–‘†‡’–Š•”ƒ‰‹‰ˆ”‘ƒ’’”‘š‹ƒ–‡Ž›ͷ–‘ͳͷǤͷˆ‡‡–„‡Ž‘™‡š‹•–‹‰‰”ƒ†‡•Ǥ‘”‹‰• Ǧͳǡ
ǦʹǡƬ
Ǧ͵
™‡”‡ ‡š
ƒ˜ƒ–‡† –‘ †‡’–Š• ‘ˆ ƒ’’”‘š‹ƒ–‡Ž› ͳͲ ˆ‡‡– „‡Ž‘™ ‡š‹•–‹‰ ‰”ƒ†‡Ǥ   
‡‘–‡
Š‹
ƒŽ
”‡’”‡•‡–ƒ–‹˜‡‘„•‡”˜‡†–Š‡†”‹ŽŽ‹‰‘’‡”ƒ–‹‘•ǡŽ‘‰‰‡†–Š‡„‘”‹‰•ǡƒ† ‘ŽŽ‡
–‡†•‘‹Ž•ƒ’Ž‡•ˆ‘”
Žƒ„‘”ƒ–‘”›–‡•–‹‰Ǥ”‹˜‡•‘‹Ž•ƒ’Ž‡•™‡”‡
‘ŽŽ‡
–‡†„›‡ƒ•‘ˆ–Š‡–ƒ†ƒ”†‡‡–”ƒ–‹‘‡•–
ȋȌ ƒ† ‘†‹ˆ‹‡† ƒŽ‹ˆ‘”‹ƒ ”‹˜‡ ȋȌ •ƒ’Ž‡”Ǥ Š‡  •ƒ’Ž‡” ȋͳǤͶǦ‹ Š
Ȍ ƒ† 
•ƒ’Ž‡”ȋʹǤͶǦ‹
Š
ǡ͵ǤͲǦ‹
ŠȌ™‡”‡†”‹˜‡—•‹‰ƒͳͶͲǦ’‘—†ƒ—–‘ƒ–‹
Šƒ‡”ˆƒŽŽ‹‰͵Ͳ
‹
Š‡•–‘ƒ†˜ƒ
‡–Š‡•ƒ’Ž‡”ƒ–‘–ƒŽ†‡’–Š‘ˆͳͺ‹
Š‡•‘”—–‹Ž”‡ˆ—•ƒŽǤ—Ž•ƒ’Ž‡•™‡”‡ƒŽ•‘

‘ŽŽ‡
–‡†ƒ†Ž‘‰‰‡†ˆ‘”Žƒ„‘”ƒ–‘”›–‡•–‹‰ƒ–•‡Ž‡
–†‡’–Š•ǤŠ‡”ƒ™„Ž‘™
‘—–•ˆ‘”‡ƒ
Š͸Ǧ‹
Š
‹
”‡‡– ‘ˆ ’‡‡–”ƒ–‹‘ ™‡”‡ ”‡
‘”†‡† ‘ –Š‡ „‘”‹‰ Ž‘‰•Ǥ 
‡ †”‹ŽŽ‹‰ ™ƒ•
‘’Ž‡–‡† –Š‡
„‘”‹‰•™‡”‡„ƒ
ˆ‹ŽŽ‡†™‹–Š†”‹ŽŽ
—––‹‰•Ǥ‘‡•‡––Ž‡‡–‘ˆ–Š‡„ƒ
ˆ‹ŽŽ•‘‹Ž•ƒ›‘

—”‘˜‡”
–‹‡

 Š ‡ – ‡ • – ’ ‹ – • ™ ‡ ” ‡ • ƒ  ’ Ž ‡ † ƒ  † Ž ‘ ‰ ‰ ‡ † „ › ƒ ” ‡ ’ ” ‡ • ‡  – ƒ – ‹ ˜ ‡ ˆ ” ‘  ‘—” ˆ‹” ƒ† •—„•‡“—‡–Ž› „ƒ
ˆ‹ŽŽ‡†ƒ†
‘’ƒ
–‡†™‹–Š–Š‡ ‡š
ƒ˜ƒ–‡†ƒ–‡”‹ƒŽ•ǤŠ‡•‘‹Ž•™‡”‡ ’Žƒ
‡†‹ ”‡Žƒ–‹˜‡Ž›–Š‹
Ž‹ˆ–•ƒ†
‘’ƒ
–‡†™‹–Šƒ„ƒ
Š‘‡‡“—‹’’‡†™‹–Šƒ
‘’ƒ
–‹‘™Š‡‡ŽǤ‘•‹†‡”ƒ„Ž‡‡ˆˆ‘”–™ƒ•
—•‡††—”‹‰–Š‡„ƒ
ˆ‹ŽŽ‘’‡”ƒ–‹‘•–‘‡•—”‡ƒ’’”‘’”‹ƒ–‡
‘’ƒ
–‹‘Ǥ’’”‘š‹ƒ–‡–‡•–’‹–ƒ†
„‘”‹‰ Ž‘
ƒ–‹‘• ƒ”‡ ’”‡•‡–‡† ‘ ‘—”
‡‘–‡
Š‹
ƒŽ ƒ’ ȋŠ‡‡– ͳȌ Ǥ  Š ‡ • — „ • — ” ˆ ƒ
‡ Ž ‘ ‰ • ƒ ” ‡ 
‹
Ž—†‡†‹’’‡†‹šǤ



2.2
InfiltrationTesting

Š”‡‡ˆ‹‡Ž†’‡”
‘Žƒ–‹‘–‡•–•™‡”‡’‡”ˆ‘”‡†‹„‘”‹‰•
Ǧͳǡ
Ǧʹǡƒ†
Ǧ͵ƒ’’”‘š‹ƒ–‡Ž›ͳͲˆ‡‡–
„‡Ž‘™–Š‡‡š‹•–‹‰‰”‘—†‡Ž‡˜ƒ–‹‘ǤŠ‡„‘”‹‰•ˆ‘”–Š‡‹ˆ‹Ž–”ƒ–‹‘–‡•–•™‡”‡‡š ƒ˜ƒ–‡†—•‹‰
ƒ †”‹ŽŽ ”‹‰ ‡“—‹’’‡† ™‹–Š ͺǦ‹
Š †‹ƒ‡–‡” Š‘ŽŽ‘™Ǧ•–‡ ƒ—‰‡”•Ǥ •–‹ƒ–‹‘ ‘ˆ ‹ˆ‹Ž–”ƒ–‹‘ ”ƒ–‡• ™ƒ•’‡”ˆ‘”‡†‹‰‡‡”ƒŽƒ

‘”†ƒ
‡™‹–Š‰—‹†‡Ž‹‡••‡–ˆ‘”–Š„ ›–Š‡‘—–›‘ˆƒ‹‡‰‘ȋǡ ʹͲʹͲȌǤ
 ‰‡‡”ƒŽǡ ƒ ͵Ǧ‹
Š †‹ƒ‡–‡” ’‡”ˆ‘”ƒ–‡†  ’‹’‡ ™ƒ• ’Žƒ
‡† ‹ ‡ƒ
Š „‘”‡Š‘Ž‡ –‘ „‡
– ‡ • – ‡ † ƒ  † – Š ‡ ƒ   — Ž — • ™ ƒ • „ ƒ
 ˆ ‹ Ž Ž ‡ † ™ ‹ – Š ‰ ” ƒ ˜ ‡ Ž ǡ ‹ 
Ž — † ‹  ‰ ’ Ž ƒ
‡  ‡  – ‘ ˆ ƒ „ ‘ — – ʹ ‹ 
Š ‡ • ‘ ˆ 
‰ ” ƒ ˜ ‡ Ž ƒ – – Š ‡ „ ‘ – – ‘  ‘ ˆ – Š ‡ „ ‘ ” ‡ Š ‘ Ž ‡ Ǥ  Š ‡ ‘ „ • ‡ ” ˜ ‡ † ‹  ˆ ‹ Ž – ” ƒ – ‹ ‘  ” ƒ – ‡ • ƒ ” ‡  ‘  • ‹ † ‡ ” ‡ † 
”‡’”‡•‡–ƒ–‹˜‡ ‘ˆ –Š‡ •‹–‡ •‘‹Ž•Ǥ Š‡•‡ ‘„•‡”˜‡† ‹ˆ‹Ž–”ƒ–‹‘ ”ƒ–‡• †‘ ‘– ‹ Ž—†‡ ƒ› ˆƒ
–‘” ‘ˆ
•ƒˆ‡–›Ǥ„•‡”˜‡†‹ˆ‹Ž–”ƒ–‹‘”ƒ–‡•Šƒ˜‡„‡‡‘”ƒŽ‹œ‡†–‘ ‘””‡
––Š‡͵Ǧ‹‡•‹‘ƒŽˆŽ‘™–Šƒ–
‘

—”•™‹–Š‹–Š‡ˆ‹‡Ž†–‡•––‘ͳǦ‹‡•‹‘ƒŽˆŽ‘™‘—–‘ˆ–Š‡„‘––‘‘ˆ–Š‡„‘”‹‰Ǥ 
Š‡–‡•–‡†‹ˆ‹Ž–”ƒ–‹‘”ƒ–‡’”‘˜‹†‡†‹–Š‹•”‡’‘”–‹• ‘•‹†‡”‡†ƒ‰‡‡”ƒŽ”‡’”‡•‡–ƒ–‹‘‘ˆ–Š‡
‹ˆ‹Ž–”ƒ–‹‘”ƒ–‡ƒ––Š‡Ž‘
ƒ–‹‘ƒ††‡’–Š’‡”ˆ‘”‡†ǤŽ‡ƒ•‡‘–‡ǡ–Š‡–‡•–‹‰‘ˆ‹ˆ‹Ž–”ƒ–‹‘”ƒ–‡• ‹• Š‹‰ŠŽ› †‡’‡†‡– —’‘ –Š‡ ƒ–‡”‹ƒŽ• ‡
‘—–‡”‡† ƒ– –Š‡ ’‘‹–‘ ˆ – ‡ • – ‹  ‰ ȋ ‹ Ǥ ‡ Ǥ ǡ Ž ‘ ƒ – ‹ ‘  ƒ  † 
†‡’–Š ‘ˆ –‡•–‹‰ȌǤ ƒ”›‹‰ •—„•—”ˆƒ
‡
‘†‹–‹‘• ƒ› ‡š‹•– ‘—–•‹†‡ ‘ˆ –Š‡ –‡•– Ž‘
ƒ–‹‘ ™Š‹
Š

‘—Ž† ƒŽ–‡” –Š‡
ƒŽ
—Žƒ–‡† ‹ˆ‹Ž–”ƒ–‹‘ ”ƒ–‡Ǥ Ž‡ƒ•‡ ”‡ˆ‡” –‘ ‡
–‹‘ ͷǤ͸ ˆ‘” •—„•—”ˆƒ
‡ ™ƒ–‡”
‹ˆ‹Ž–”ƒ–‹‘”‡
‘‡†ƒ–‹‘•ǡƒ•—ƒ”›‘ˆ–Š‡‹ˆ‹Ž–”ƒ–‹‘†ƒ–ƒƒ†ǡ’‡”–‹‡–ˆƒ –‘”•‘ˆ•ƒˆ‡–›Ǥ

Project No. 21138-01 Page 4 July 15, 2021



2.3 LaboratoryTesting

‡’”‡•‡–ƒ–‹˜‡ „—Ž ƒ† †”‹˜‡ •ƒ’Ž‡• ™‡”‡ ‘„–ƒ‹‡† ˆ‘” Žƒ„‘”ƒ–‘”› –‡•–‹‰ †—”‹‰ ‘—” ˆ‹‡Ž† ‡˜ƒŽ—ƒ–‹‘Ǥ ƒ„‘”ƒ–‘”› –‡•–‹‰ ‹
Ž—†‡† ‹Ǧ•‹–— ‘‹•–—”‡
‘–‡– ƒ† †”› †‡•‹–›ǡ ˆ‹‡•
‘–‡–ǡ
––‡”„‡”‰ Ž‹‹–•ǡ
‘•‘Ž‹†ƒ–‹‘ǡ ‡š’ƒ•‹‘ ‹†‡šǡ Žƒ„‘”ƒ–‘”›
‘’ƒ
–‹‘ǡ ƒ†
‘””‘•‹‘ ȋ•—Žˆƒ–‡ǡ

ŠŽ‘”‹†‡ǡ’
ƒ†‹‹—”‡•‹•–‹˜‹–›ȌǤ

x ”› †‡•‹–› ‘ˆ –Š‡ •ƒ’Ž‡•
‘ŽŽ‡
–‡† ”ƒ‰‡† ˆ”‘ ƒ’’”‘š‹ƒ–‡Ž›ͻ͹Ǥ͸ ’‘—†• ’‡”
—„‹

ˆ‘‘–ȋ’
ˆȌ–‘ͳʹ͵ǤͶ’
ˆǡ™‹–Šƒƒ˜‡”ƒ‰‡‘ˆͳͳ͵Ǥʹ’
ˆǤ ‹‡Ž†‘‹•–—”‡
‘–‡–•”ƒ‰‡†ˆ”‘
ƒ’’”‘š‹ƒ–‡Ž›ͷǤ͸’‡”
‡––‘ͳʹǤͻ’‡”
‡–ǡ™‹–Šƒƒ˜‡”ƒ‰‡‘ˆͺǤͷ’‡”
‡–Ǥ
x ‡ ˆ‹‡•
‘–‡– –‡•–• ™ƒ• ’‡”ˆ‘”‡† ƒ† ‹†‹
ƒ–‡† ƒ ˆ‹‡•
‘–‡– ȋ’ƒ••‹‰ ‘Ǥ ʹͲͲ
•‹‡˜‡Ȍ ‘ˆ ƒ’’”‘š‹ƒ–‡Ž› Ͷͷ ’‡”
‡–Ǥ ƒ•‡† ‘ –Š‡ ‹ˆ‹‡† ‘‹Ž• Žƒ••‹ˆ‹
ƒ–‹‘ ›•–‡
ȋȌǡ–Š‡–‡•–‡†•ƒ’Ž‡™‘—Ž†„‡
Žƒ••‹ˆ‹‡†Dzˆ‹‡Ǧ‰”ƒ‹‡†Ǥdz
x ‡ ––‡”„‡”‰ ‹‹– ȋŽ‹“—‹† Ž‹‹– ƒ† ’Žƒ•–‹
 Ž‹‹–Ȍ –‡•–™ƒ• ’‡”ˆ‘”‡†Ǥ ‡•—Ž–• ‹†‹
ƒ–‡†
Žƒ•–‹
‹–›
†‡šȋ
Ȍ˜ƒŽ—‡‘ˆʹ͵Ǥ
x ‡
‘•‘Ž‹†ƒ–‹‘–‡•–™ƒ•’‡”ˆ‘”‡†ǡ–Š‡’Ž‘–‹•’”‘˜‹†‡†‹’’‡†‹šǤ x ™‘š’ƒ•‹‘
†‡šȋ
Ȍ–‡•–•‘ˆƒ‡ƒ”Ǧ•—”ˆƒ
‡•ƒ’Ž‡•‹†‹
ƒ –‡†
˜ƒŽ—‡•‘ˆ͵ʹƒ†ͷͷǡ

‘””‡•’‘†‹‰–‘Dz‘™dzƒ†Dz‡†‹—dz‡š’ƒ•‹‘’‘–‡–‹ƒŽǡ”‡•’‡ –‹˜‡Ž›Ǥ
x   ‡ Ž ƒ „ ‘ ” ƒ – ‘ ” › 
‘  ’ ƒ
– ‹ ‘  – ‡ • – ” ‡ • — Ž – ‡ † ‹  ƒ  ƒ š ‹  —  † ” › † ‡  • ‹ –› ‘ˆ ͳʹͷǤͷ ’ ˆ ƒ– ƒ
‘’–‹—‘‹•–—”‡
‘–‡–‘ˆͳͲǤͲ’‡”
‡–Ǥ
x  ‘ ” ” ‘ • ‹ ‘  – ‡ • – ‹  ‰ ‹  † ‹
ƒ – ‡ † ƒ • ‘ Ž — „ Ž ‡ • — Ž ˆ ƒ – ‡ 
‘  – ‡  – ‘ ˆ Ž ‡ • • –Šƒ ƒ’’”‘š‹ƒ–‡Ž› ͲǤͲͳͻ
’‡”
‡–ǡ ƒ
ŠŽ‘”‹†‡
‘–‡– ‘ˆ ͳͶͻ ’ƒ”–• ’‡” ‹ŽŽ‹‘ ȋ’’Ȍǡ ’
‘ ˆ ͹ Ǥ ͻ ͻ ǡ ƒ  † ƒ  ‹  ‹  —  
”‡•‹•–‹˜‹–›‘ˆ͹ͶͲ‘ŠǦ
‡–‹‡–‡”•Ǥ

ƒ„‘”ƒ–‘”› –‡•– ”‡•—Ž–• ‘„–ƒ‹‡† ˆ”‘ ‘—” ˆ‹‡Ž† ‡˜ƒŽ—ƒ–‹‘ ƒ”‡ ’”‘˜‹†‡† ‹ ’’‡†‹š Ǥ Š‡ ‘‹•–—”‡ƒ††”›†‡•‹–›”‡•—Ž–•ƒ”‡’”‡•‡–‡†‘–Š‡„‘”‹‰Ž‘‰•‹’’‡†‹šǤ 

Project No. 21138-01 Page 5 July 15, 2021

3.0GEOTECHNICALCONDITIONS


3.1 SiteGeology

Š‡ˆ‹†‹‰•‘ˆ‘—”Ž‹‹–‡†‰‡‘–‡
Š‹
ƒŽ‡˜ƒŽ—ƒ–‹‘‹†‹
ƒ–‡–Šƒ––Š‡•‹–‡‹•‰‡‡”ƒŽŽ›—†‡”Žƒ‹„›
‘Ž†‡”ƒ”–‹ˆ‹
‹ƒŽˆ‹ŽŽ‘˜‡”Ž›‹‰—ƒ–‡”ƒ”›‘Ž†‡”ƒŽŽ—˜‹—Ǥ”‡–ƒ
‡‘—•‘ƒŽ‹–‡—†‡”Ž‹‡•–Š‡•‹–‡ƒ–
†‡’–Š „—– ™ƒ• ‘– ‡
‘—–‡”‡† †—”‹‰ ‘—” •—„•—”ˆƒ
‡ ‡˜ƒŽ—ƒ–‹‘Ǥ  Š ‡ – › ’ ‹
ƒ Ž ‘  • ‹ – ‡ 

Šƒ”ƒ
–‡”‹•–‹
• ‘ˆ –Š‡ ƒ–‡”‹ƒŽ• ƒ”‡ †‡•
”‹„‡† ‹ –Š‡ ˆ‘ŽŽ‘™‹‰• — „ • ‡
– ‹ ‘  • ȋ ˆ ” ‘  › ‘ —  ‰ ‡ • – – ‘ 
‘Ž†‡•–ȌǤ Š‡ ƒ’’”‘š‹ƒ–‡ Žƒ–‡”ƒŽ ‡š–‡– ‘ˆ –Š‡ ‰‡‘Ž‘‰‹  —‹–• ‡
‘—–‡”‡† ‹• ’”‡•‡–‡† ‘ –Š‡

‡‘–‡
Š‹
ƒŽ ƒ’ ȋŠ‡‡– ͳȌǤ
– •Š‘—Ž† „‡ ‘–‡† –Šƒ– ‰‡‘–‡
Š‹
ƒ Ž ‡š’Ž‘”ƒ–‹‘• ƒ”‡ ‘Ž›
”‡’”‡•‡–ƒ–‹˜‡‘ˆ–Š‡Ž‘
ƒ–‹‘™Š‡”‡–Š‡›ƒ”‡’‡”ˆ‘”‡†ƒ†˜ƒ”›‹‰•—„•—”ˆƒ
‡
‘†‹–‹‘•ƒ›
‡š‹•–‘—–•‹†‡‘ˆ‡ƒ
ŠŽ‘
ƒ–‹‘Ǥ
ƒ††‹–‹‘ǡ•—„•—”ˆƒ
‡
‘†‹–‹‘•
ƒ
Šƒ‰‡‘˜‡”–‹‡ǤŠ‡•‘‹Ž
†‡•
”‹’–‹‘• ’”‘˜‹†‡† Š‡”‡‹ •Š‘—Ž† ‘– „‡
‘•–”—‡† –‘ ‡ƒ –Šƒ – – Š ‡ • — „ • — ” ˆ ƒ
‡ ’ ” ‘ ˆ ‹ Ž ‡ ‹ • 
—‹ˆ‘” ƒ† –Šƒ– •‘‹Ž ‹• Š‘‘‰‡‡‘—• ™‹–Š‹ –Š‡ ’”‘Œ‡ – ƒ”‡ƒǤ ‘” †‡–ƒ‹Ž‡† †‡•
”‹’–‹‘• ‘ˆ –Š‡
ƒ–‡”‹ƒŽ•ƒ––Š‡‡š’Ž‘”ƒ–‹‘Ž‘
ƒ–‹‘•ǡ”‡ˆ‡”–‘–Š‡‡š’Ž‘”ƒ–‹‘Ž‘‰•’”‘˜‹†‡†‹’’‡†‹šǤ 

3.1.1 OlderArtificialFill(MapSymbol–afo)

Ž†‡”ƒ”–‹ˆ‹
‹ƒŽˆ‹ŽŽƒ•†‡’‹
–‡†‘–Š‡
‡‘–‡
Š‹
ƒŽƒ’‰‡‡” ƒŽŽ›‹†‹
ƒ–‡•ƒ–‡”‹ƒŽ–Šƒ–
Šƒ• „‡‡ ’Žƒ
‡† ‘˜‡” ƒ–‹˜‡ ‘Ǧ•‹–‡ •‘‹Ž• ƒ•’ƒ”– ‘ˆ ’”‹‘” ”‘—‰Š ‰”ƒ†‹‰ ƒ –‹˜‹–‹‡•Ǥ Š‡
ƒ–‡”‹ƒŽ•‡
‘—–‡”‡†
‘•‹•–‡†‘ˆŽ‹‰Š––‘‡†‹—„”‘™
Žƒ›‡›•ƒ†•ƒ†•ƒ†›
Žƒ›•
–Šƒ– ƒ”‡ •Ž‹‰Š–Ž› ‘‹•– –‘ ‘‹•–ǡ †‡•‡ ƒ†Ȁ‘” •–‹ˆˆǤ Š‡ ƒ”–‹ˆ ‹ ‹ƒŽ ˆ‹ŽŽ ƒ–‡”‹ƒŽ•
‡
‘—–‡”‡† †—”‹‰ ‘—” •—„•—”ˆƒ
‡ ‡˜ƒŽ—ƒ–‹‘ ”ƒ‰‡† ˆ”‘ ƒ’’”‘š‹ƒ–‡Ž› ƒ– ‡š‹•–‹‰ ‰”ƒ†‡–‘ͺˆ‡‡–‹†‡’–ŠǤ


3.1.2 QuaternaryOlderAlluvium(MapSymbolǦQcol)

—ƒ–‡”ƒ”›Ǧƒ‰‡† ƒŽŽ—˜‹— ™ƒ• ‡
‘—–‡”‡† ‹ ‡ƒ
Š ‘ˆ –Š‡ ‡š’Ž‘”ƒ–‘”› –‡•– ’‹–• ƒ†
„‘”‹‰• ‡š
ƒ˜ƒ–‡† ƒ
”‘•• –Š‡ •‹–‡Ǥ
 ‰‡‡”ƒŽǡ –Š‡ ƒŽŽ—˜‹ƒŽ ƒ– ‡”‹ƒŽ• ‡
‘—–‡”‡†

‘•‹•–‡† ‘ˆ Ž‹‰Š– –‘ †ƒ” „”‘™ǡ •Ž‹‰Š–Ž› ‘‹•–ǡ †‡•‡ –‘ ˜‡”› †‡•‡ Žƒ›‡› •ƒ†• ƒ†
•–‹ˆˆ –‘ Šƒ”† •ƒ†›
Žƒ›• ™‹–Š ‰”ƒ˜‡Ž ƒ† Ž‡••‡” ƒ‘—–• ‘ˆ
‘„ „Ž‡•Ǥ Š‡ ƒŽŽ—˜‹ƒŽ
ƒ–‡”‹ƒŽ•‡
‘—–‡”‡††—”‹‰‘—”•—„•—”ˆƒ
‡‡˜ƒŽ—ƒ–‹‘”ƒ‰‡†ˆ ”‘ƒ’’”‘š‹ƒ–‡Ž›ʹ
ˆ‡‡––‘ƒƒš‹—ͳͷǤͷˆ‡‡–‹†‡’–ŠǤ


3.2 SeismicDesignCriteria

Š‡ •‹–‡ •‡‹•‹

Šƒ”ƒ
–‡”‹•–‹
• ™‡”‡ ‡˜ƒŽ—ƒ–‡† ’‡” –Š‡ ‰—‹†‡Ž‹‡• •‡– ˆ‘”–Š ‹ Šƒ’–‡” ͳ͸ǡ ‡
–‹‘ͳ͸ͳ͵‘ˆ–Š‡ʹͲͳͻƒŽ‹ˆ‘”‹ƒ—‹Ž†‹‰‘†‡ȋȌƒ†ƒ’’ Ž‹ ƒ„Ž‡’‘”–‹‘•‘ˆ͹Ǧͳ͸
™Š‹
ŠŠƒ•„‡‡ƒ†‘’–‡†„›–Š‡ǤPlease notethatthefollowingseismicparametersare onlyapplicableforcodeǦbasedaccelerationresponsespectraandarenotapplicablefor wheresiteǦspecificgroundmotionproceduresarerequiredbyASCE7Ǧ15.‡’”‡•‡–ƒ–‹˜‡ •‹–‡
‘‘”†‹ƒ–‡•‘ˆŽƒ–‹–—†‡͵͵ǤͳͷͲ͵†‡‰”‡‡•‘”–Šƒ†Ž‘‰‹–—† ‡Ǧͳͳ͹Ǥͳͺͻ͹†‡‰”‡‡•™‡•–™‡”‡ —–‹Ž‹œ‡† ‹ ‘—” ƒƒŽ›•‡•Ǥ Š‡ ƒš‹—
‘•‹†‡”‡† ‡ƒ”–Š“—ƒ‡ ȋȌ •’‡
–”ƒŽ ”‡•’‘•‡
ƒ

‡Ž‡”ƒ–‹‘•ȋ
ƒ†ͳȌƒ†ƒ†Œ—•–‡††‡•‹‰•’‡
–”ƒŽ”‡•’‘•‡ƒ

‡Ž‡”ƒ–‹‘’ƒ”ƒ‡–‡”• ȋ
ƒ†ͳȌˆ‘”‹–‡Žƒ••ƒ”‡’”‘˜‹†‡†‹ƒ„Ž‡ͳ‘–Š‡ˆ‘ŽŽ‘™‹‰’ƒ‰ ‡ǤŠ‡•–”— –—”ƒŽ†‡•‹‰‡”
•Š‘—Ž†
‘–ƒ
– –Š‡ ‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ– ‹ˆ •–”—
–—”ƒŽ
‘†‹–‹ ‘  • ȋ ‡ Ǥ ‰ Ǥ ǡ  —  „ ‡ ” ‘ ˆ • – ‘ ” ‹ ‡ • ǡ  •‡‹•‹
ƒŽŽ›‹•‘Žƒ–‡†•–”—
–—”‡•ǡ‡–
ǤȌ”‡“—‹”‡•‹–‡Ǧ•’‡
‹ˆ‹
‰”‘—†‘–‹‘•Ǥ




Project No. 21138-01 Page 6 July 15, 2021
TABLE1

SeismicDesignParameters


SelectedParametersfrom2019CBC,
Section1613ǦEarthquakeLoads
Seismic
Design
Values
Notes/Exceptions
‹•–ƒ
‡–‘ƒ’’Ž‹
ƒ„Ž‡ˆƒ—Ž–•
Žƒ••‹ˆ‹‡•–Š‡•‹–‡ƒ•ƒ
Dz‡ƒ”Ǧ ƒ—Ž–dz•‹–‡Ǥ ‡
–‹‘ͳͳǤͶǤͳ‘ˆ͹
‹–‡Žƒ••  Šƒ’–‡”ʹͲ‘ˆ͹
•ȋ‹•Ǧƒ”‰‡–‡†’‡
–”ƒŽ

‡Ž‡”ƒ–‹‘
ˆ‘”Š‘”–‡”‹‘†•Ȍ ͲǤͺͻͻ‰ ”‘ǡʹͲʹͳ
ͳȋ‹•Ǧƒ”‰‡–‡†’‡
–”ƒŽ


‡Ž‡”ƒ–‹‘•ˆ‘”ͳǦ‡
‘†‡”‹‘†•Ȍ ͲǤ͵͵ͳ‰ ”‘ǡʹͲʹͳ
ƒȋ’‡”ƒ„Ž‡ͳ͸ͳ͵ǤʹǤ͵ȋͳȌȌ ͳǤʹ
‘”‹’Ž‹ˆ‹‡†‡•‹‰”‘
‡†—”‡
‘ˆ‡
–‹‘ͳʹǤͳͶ‘ˆ͹ǡ ƒ
•ŠƒŽŽ„‡–ƒ‡ƒ•ͳǤͶȋ‡
–‹‘
ͳʹǤͳͶǤͺǤͳȌ
˜ȋ’‡”ƒ„Ž‡ͳ͸ͳ͵ǤʹǤ͵ȋʹȌȌ ͳǤͷ Ǧ
ˆ‘”‹–‡Žƒ••
ȏ‘–‡ǣα ƒȐ ͳǤͲ͹ͺ‰ Ǧ
ͳˆ‘”‹–‡Žƒ••
ȏ‘–‡ǣͳα ˜ͳȐ ͲǤͶͻ͹‰ Ǧ
ˆ‘”‹–‡Žƒ••
ȏ‘–‡ǣαȋʹȀ͵ȌȐ ͲǤ͹ͳͻ‰ Ǧ
ͳˆ‘”‹–‡Žƒ••
ȏ‘–‡ǣͳαȋʹȀ͵ȌͳȐ ͲǤ͵͵ͳ‰ Ǧ
ȋƒ’’‡†‹•‘‡ˆˆ‹
‹‡–ƒ–ͲǤʹ•‡
Ȍ ͲǤͻʹͲ ͹Šƒ’–‡”ʹʹ
ͳȋƒ’’‡†‹•‘‡ˆˆ‹
‹‡–ƒ–ͳ•‡
Ȍ ͲǤͻʹʹ ͹Šƒ’–‡”ʹʹ

†‡ƒ‰‰”‡‰ƒ–‹‘‘ˆ–Š‡
„ƒ•‡†‘ƒʹǡͶ͹ͷǦ›‡ƒ”ƒ˜‡”ƒ‰‡”‡–—” ’‡”‹‘†ȋȌ‹†‹ ƒ–‡•–Šƒ–
ƒ‡ƒ”–Š“—ƒ‡ƒ‰‹–—†‡‘ˆͷǤͷͺƒ–ƒ†‹•–ƒ
‡‘ˆƒ’’”‘š‹ƒ–‡Ž› ͳͺǤͳͲˆ”‘–Š‡•‹–‡™‘—Ž†

‘–”‹„—–‡ –Š‡ ‘•– –‘ –Š‹• ‰”‘—† ‘–‹‘Ǥ  †‡ƒ‰‰”‡‰ƒ–‹‘ ‘ˆ –Š‡   „ƒ•‡† ‘ ƒ Ͷ͹ͷǦ›‡ƒ”
ƒ˜‡”ƒ‰‡”‡–—”’‡”‹‘†ȋ‡•‹‰ƒ”–Š“—ƒ‡Ȍ‹†‹
ƒ–‡•–Šƒ–ƒ‡ƒ”–Š“—ƒ‡ƒ‰‹–—†‡‘ˆͷǤ͸͵ƒ–ƒ
†‹•–ƒ
‡ ‘ˆ ƒ’’”‘š‹ƒ–‡Ž› ʹͷǤͺͻ  ˆ”‘ –Š‡ •‹–‡ ™‘—Ž† ‘–”‹„—– ‡ – Š ‡  ‘ • – – ‘ – Š ‹ • ‰ ” ‘ —  †  ‘–‹‘ȋ
ǡʹͲͳͶȌǤ

 
‡
–‹‘ ͳͺͲ͵ǤͷǤͳʹ ‘ˆ –Š‡ ʹͲͳͻ  ȋ’‡” ‡
–‹‘ ͳͳǤͺǤ͵ ‘ˆ  ͹Ȍ •–ƒ–‡• –Šƒ– –Š‡ ƒš‹—

‘•‹†‡”‡† ‡ƒ”–Š“—ƒ‡ ‰‡‘‡–”‹
 ‡ƒ ȋ
Ȍ ‡ƒ
”‘—† 

‡Ž‡”ƒ–‹‘ ȋ
Ȍ •Š‘—Ž† „‡
— • ‡ † ˆ ‘ ” Ž ‹ “ — ‡ ˆ ƒ
– ‹ ‘  ’ ‘ – ‡  – ‹ ƒ Ž Ǥ  Š ‡ 
 ˆ‘” –Š‡ •‹–‡ ‹• ‡“—ƒŽ –‘ ͲǤͶ͸͸‰ ȋǡ ʹͲʹͳȌǤ Š‡ †‡•‹‰
‹•‡“—ƒŽ–‘ͲǤ͵ͳͳ‰ȋʹȀ͵‘ˆ
ȌǤ



3.3 Landslides

‡‰‹‘ƒŽ‰‡‘Ž‘‰‹
ƒ’’‹‰ƒ†Ž‘
ƒŽ–‘’‘‰”ƒ’Š‹
‡š’”‡••‹‘•†‘ ‘–‹†‹
ƒ–‡–Š‡’”‡•‡
‡‘ˆ
Žƒ”‰‡Ǧ•
ƒŽ‡Žƒ†•Ž‹†‡•™‹–Š‹–Š‡ƒ”‡ƒ‘ˆ–Š‡•—„Œ‡
–•‹–‡Ǥ
† ‹
ƒ–‹‘•‘ˆ†‡‡’Ǧ•‡ƒ–‡†Žƒ†•Ž‹†‹‰
‘ ” ‰ ” ‘ • • • Ž ‘ ’ ‡ ‹  • – ƒ „ ‹ Ž ‹ – › ‘ ˆ – Š ‡ ‡ š ‹ • – ‹  ‰  ƒ – — ” ƒ Ž • Ž ‘ ’ ‡ • ™ ‡ ” ‡ ‘– ‘„•‡”˜‡† †—”‹‰ ‘—” •‹–‡ 
Project No. 21138-01 Page 7 July 15, 2021
‡˜ƒŽ—ƒ–‹‘Ǥ



3.4 Groundwater

ŠƒŽŽ‘™‰”‘—†™ƒ–‡”
‘†‹–‹‘•™‡”‡‘–‡
‘—–‡”‡††—”‹‰–Š‡•—„Œ‡
–•–—†›ǡ™Š‹
Š‹
Ž—†‡†
‡š
ƒ˜ƒ–‹‘• —’ –‘ ͳͷǤͷ ˆ‡‡– „‡Ž‘™ –Š‡ ‡š‹•–‹‰ ‰”‘—† •—”ˆƒ ‡Ǥ
 ‰‡‡”ƒŽǡ ‰”‘—†™ƒ–‡” Ž‡˜‡Ž•
ˆŽ—
–—ƒ–‡ ™‹–Š –Š‡ •‡ƒ•‘• ƒ† Ž‘
ƒŽ œ‘‡• ‘ˆ ’‡”
Š‡† ‰”‘—†™ƒ–‡” ƒ› „‡ ’”‡•‡– ™‹–Š‹ –Š‡
‡ƒ”Ǧ•—”ˆƒ
‡†‡’‘•‹–•†—‡–‘Ž‘
ƒŽ•‡‡’ƒ‰‡‘”†—”‹‰”ƒ‹›•‡ƒ• ‘•Ǥ‘
ƒŽ’‡”
Š‡†‰”‘—†™ƒ–‡”

‘†‹–‹‘• ƒ› †‡˜‡Ž‘’ ‘
‡ •‹–‡ †‡˜‡Ž‘’‡– ‹•
‘’Ž‡–‡† ƒ† Žƒ†•
ƒ’‡ ‹””‹‰ƒ–‹‘

‘‡
‡•Ǥ



3.5 Faulting

 ƒ Ž ‹ ˆ ‘ ”  ‹ ƒ ‹ • Ž ‘
ƒ – ‡ † ‘  – Š ‡ „ ‘ —  † ƒ ” › „ ‡ – ™ ‡ ‡  – Š ‡  ƒ ‹ ˆ ‹
ƒ  † ‘”–Š ‡”‹
ƒ ‡
–‘‹
 Žƒ–‡•Ǥ
Š‡ƒ˜‡”ƒ‰‡‘–‹‘ƒŽ‘‰–Š‹•„‘—†ƒ”›‹•‘–Š‡‘”†‡”‘ˆͷͲǦȀ›”‹ƒ”‹‰Š–ǦŽƒ–‡”ƒŽ•‡•‡ǤŠ‡  ƒ Œ ‘ ” ‹ – › ‘ ˆ – Š ‡  ‘ – ‹ ‘  ‹ • ‡ š ’ ” ‡ • • ‡ † ƒ – – Š ‡ • — ” ˆ ƒ ‡ ƒ Ž ‘  ‰ – Š ‡  ‘”–Š™‡•– –”‡†‹‰ ƒ †”‡ƒ• ƒ—Ž–
‘‡ ™‹–Š Ž‡••‡” ƒ‘—–• ‘ˆ ‘–‹‘ ƒ

‘‘†ƒ–‡† „› •—„Ǧ’ƒ ”ƒŽŽ‡Ž ˆƒ—Ž–• Ž‘
ƒ–‡†
’”‡†‘‹ƒ–Ž› ™‡•– ‘ˆ –Š‡ ƒ †”‡ƒ• ƒ—Ž– ‹
Ž—†‹‰ –Š‡ Ž•‹‘”‡ǡ ‡™’‘”–Ǧ
‰Ž‡™‘‘†ǡ ‘•‡
ƒ›‘ǡƒ†‘”‘ƒ†‘ƒ ƒ—Ž–•Ǥ‹–Š‹‘—–Š‡”ƒŽ‹ˆ‘”‹ƒǡƒŽƒ”‰‡„‡†‹–Š‡ƒ†”‡ƒ• ƒ—Ž–‘”–Š‘ˆ–Š‡ƒ
ƒ„”‹‡Ž‘—–ƒ‹•Šƒ•”‡•—Ž–‡†‹ƒ–”ƒ•ˆ‡”‘ˆƒ’‘”–‹‘‘ˆ–Š‡”‹‰Š–ǦŽƒ–‡”ƒŽ ‘–‹‘ „‡–™‡‡ –Š‡ ’Žƒ–‡• ‹–‘ Ž‡ˆ–ǦŽƒ–‡”ƒŽ †‹•’Žƒ ‡‡– ƒ† ˜‡”–‹
ƒŽ —’Ž‹ˆ–Ǥ ‘’”‡••‹‘ •‘—–Š
ƒ†™‡•–‘ˆ–Š‡„‡†Šƒ•”‡•—Ž–‡†‹ˆ‘Ž†‹‰ǡŽ‡ˆ–ǦŽƒ–‡”ƒŽ”‡˜‡”•‡–Š”—•–ˆƒ—Ž–‹‰ǡƒ†”‡‰‹‘ƒŽ—’Ž‹ˆ–

”‡ƒ–‹‰–Š‡‡ƒ•–Ǧ™‡•––”‡†‹‰”ƒ•˜‡”•‡ƒ‰‡•ƒ†•‡˜‡”ƒŽ‡ƒ•–Ǧ™‡•––”‡†‹‰ˆƒ—Ž–•Ǥ ƒ”–Š‡” •‘—–Šǡ™‹–Š‹–Š‡‘•‰‡Ž‡•ƒ•‹ǡ Dz„Ž‹†–Š”—•–dzˆƒ—Ž–•ƒ”‡„‡Ž‹‡˜‡†–‘Šƒ˜‡†‡˜‡Ž‘’‡†„‡Ž‘™ –Š‡•—”ˆƒ
‡ƒŽ•‘ƒ•ƒ”‡•—Ž–‘ˆ–Š‹•
‘’”‡••‹‘ǡ™Š‹
ŠŠƒ˜‡”‡ •—Ž–‡†‹‡ƒ”–Š“—ƒ‡••—
Šƒ•–Š‡
ͳͻͻͶ‘”–Š”‹†‰‡‡˜‡–ƒŽ‘‰ˆƒ—Ž–•™‹–ŠŽ‹––Ž‡–‘‘•—”ˆƒ ‡‡š’”‡••‹‘Ǥ

”‘’–‡† „› †ƒƒ‰‹‰ ‡ƒ”–Š“—ƒ‡• ‹ ‘”–Š‡” ƒ† ‘—–Š‡” ƒŽ‹ˆ‘”‹ƒǡ –ƒ–‡ Ž‡‰‹•Žƒ–‹‘ ƒ† ’‘Ž‹
‹‡•
‘
‡”‹‰ –Š‡
Žƒ••‹ˆ‹
ƒ–‹‘ ƒ† Žƒ†Ǧ—•‡
”‹–‡”‹ƒ ƒ••‘
‹ƒ–‡† ™‹–Š ˆƒ—Ž–• Šƒ˜‡ „‡‡
† ‡ ˜ ‡ Ž ‘ ’ ‡ † Ǥ  Š ‡ ‹ ” ’ — ” ’ ‘ • ‡ ™ ƒ • – ‘ ’ ” ‡ ˜ ‡  – – Š ‡  ‘  • – ” —
– ‹ ‘  ‘ ˆ — ” „ƒ †‡˜‡Ž‘’‡–• ƒ
”‘•• –Š‡
–”ƒ
‡ ‘ˆ ƒ
–‹˜‡ ˆƒ—Ž–•Ǥ Š‡ ”‡•—Ž– ‹• –Š‡ Ž“—‹•–Ǧ”‹‘Ž‘ ƒ”–Š“—ƒ‡ ƒ—Ž– ‘‹‰ 
–ǡ ™Š‹
Š ™ƒ•
‘•– ”‡
‡–Ž› ”‡˜‹•‡† ‹ ʹͲͲ͹ ȋ
ǡ ʹͲͲ͹ȌǤ 

‘”†‹‰ –‘ –Š‡ –ƒ–‡
‡‘Ž‘‰‹•–ǡ ƒ ƒ
–‹˜‡ ˆƒ—Ž– ‹•
†‡ˆ‹‡†ƒ•‘‡ǡ™Š‹
ŠŠƒ•Šƒ†•—”ˆƒ
‡†‹•’Žƒ
‡‡–™‹–Š‹–Š‡
‘Ž‘
‡‡’‘
Šȋ”‘—‰ŠŽ›–Š‡Žƒ•–
ͳͳǡͲͲͲ ›‡ƒ”•ȌǤ  ’‘–‡–‹ƒŽŽ› ƒ
–‹˜‡ ˆƒ—Ž– ‹• †‡ˆ‹‡† ƒ• ƒ› ˆƒ—Ž–ǡ ™Š‹
Š Šƒ• Šƒ† •—”ˆƒ
‡
†‹•’Žƒ
‡‡– †—”‹‰ —ƒ–‡”ƒ”› –‹‡ ȋŽƒ•– ͳǡ͸ͲͲǡͲͲͲ ›‡ƒ”•Ȍǡ „—– ‘– ™‹–Š‹ –Š‡ ‘Ž‘
‡‡Ǥ
ƒ”–Š“—ƒ‡ ƒ—Ž–
‘‡•Šƒ˜‡„‡‡†‡Ž‹‡ƒ–‡†ƒŽ‘‰–Š‡–”ƒ
‡•‘ˆƒ
–‹˜‡ˆƒ—Ž–•™‹–Š‹ƒŽ‹ˆ‘”‹ƒǤ
Š‡”‡†‡˜‡Ž‘’‡–•ˆ‘”Š—ƒ‘

—’ƒ–‹‘ƒ”‡’”‘’‘•‡†™‹–Š‹–Š‡•‡œ‘‡•ǡ–Š‡•–ƒ–‡”‡“—‹”‡• †‡–ƒ‹Ž‡†ˆƒ—Ž–‡˜ƒŽ—ƒ–‹‘•„‡’‡”ˆ‘”‡†•‘–Šƒ–‡‰‹‡‡”‹‰‰‡‘Ž‘‰‹•–• ƒ‹–‹‰ƒ–‡–Š‡Šƒœƒ”†•
ƒ••‘
‹ƒ–‡† ™‹–Š ƒ
–‹˜‡ ˆƒ—Ž–‹‰ „› ‹†‡–‹ˆ›‹‰ –Š‡ Ž‘
ƒ–‹‘ ‘ˆƒ
–‹˜‡ ˆƒ—Ž–• ƒ† ƒŽŽ‘™‹‰ ˆ‘” ƒ
•‡–„ƒ
ˆ”‘–Š‡œ‘‡‘ˆ’”‡˜‹‘—•‰”‘—†”—’–—”‡Ǥ

Š‡•‹–‡‹•‘–Ž‘
ƒ–‡†™‹–Š‹ƒƒ’’‡†ƒ”–Š“—ƒ‡ ƒ—Ž–
‘‡ȋŽ“—‹•–Ǧ”‹‘Ž‘’‡
‹ƒŽ–—†‹‡•

‘‡Ȍ ƒ† ‘ ‘™ ƒ
–‹˜‡ ‘” ’‘–‡–‹ƒŽŽ› ƒ
–‹˜‡ ˆƒ—Ž–• Šƒ˜‡ „‡‡  ‹ † ‡  – ‹ ˆ ‹ ‡ † ‘  ‘ ” ‹  – Š ‡  ‹‡†‹ƒ–‡ ˜‹
‹‹–› ‘ˆ –Š‡ •‹–‡Ǥ Š‡ ‡ƒ”‡•– ‘™ ƒ
–‹˜‡ ‘” ’‘– ‡–‹ƒŽŽ› ƒ
–‹˜‡ ˆƒ—Ž– ‹• –Š‡
‘ˆˆ•Š‘”‡’‘”–‹‘‘ˆ–Š‡‘•‡ƒ›‘ ƒ—Ž–Ž‘
ƒ–‡†ƒ’’”‘š‹ƒ–‡Ž› ͳͺǤͺ‹Ž‘‡–‡”•ȋͳͳǤ͹‹Ž‡•Ȍ
–‘–Š‡™‡•–Ǥ

‡
‘†ƒ”›‡ˆˆ‡
–•‘ˆ•‡‹•‹
•Šƒ‹‰”‡•—Ž–‹‰ˆ”‘Žƒ”‰‡‡ƒ”–Š“—ƒ‡•‘–Š‡ƒŒ‘”ˆƒ—Ž–•‹–Š‡ 
Project No. 21138-01 Page 8 July 15, 2021
‘—–Š‡” ƒŽ‹ˆ‘”‹ƒ ”‡‰‹‘ǡ ™Š‹
Š  ƒ › ƒ ˆ ˆ ‡
– – Š ‡ • ‹ – ‡ ǡ ‹ 
Ž — † ‡ ‰”‘—† Ž—”
Š‹‰ ƒ† •ŠƒŽŽ‘™
‰”‘—†”—’–—”‡ǡ•‘‹ŽŽ‹“—‡ˆƒ
–‹‘ǡ†›ƒ‹
•‡––Ž‡‡–ǡ•‡‹
Š‡•ǡ ƒ†–•—ƒ‹•ǤŠ‡•‡•‡
‘†ƒ”›
‡ ˆ ˆ ‡
– •‘ ˆ • ‡ ‹ • ‹
• Š ƒ  ‹  ‰ ƒ ” ‡ ƒ ’ ‘ ••‹ „ ‹ Ž ‹ – › – Š ” ‘ — ‰ Š ‘ — – – Š ‡  ‘ —–Š‡” ƒŽ‹ˆ‘”‹ƒ ”‡‰‹‘ ƒ† ƒ”‡ † ‡ ’ ‡  † ƒ  – ‘  – Š ‡ † ‹ • – ƒ 
‡ „ ‡ – ™ ‡ ‡  – Š ‡ • ‹ – ‡ ƒ  † 
ƒ — • ƒ – ‹ ˜ ‡ ˆ ƒ — Ž – ƒ† –Š‡ ‘•‹–‡ ‰‡‘Ž‘‰›Ǥ Š‡ ‡ƒ”‡•–‘™ƒŒ‘”ƒ
–‹˜‡ˆƒ—Ž–•–Šƒ–
‘—Ž†’”‘†—
‡–Š‡•‡•‡
‘ †ƒ”›‡ˆˆ‡
–•‹
Ž—†‡–Š‡‘•‡
ƒ›‘ ƒ—Ž–ǡ–Š‡‡™’‘”–Ǧ
‰Ž‡™‘‘† ƒ—Ž–ƒ†–Š‡Ž•‹‘”‡Ǧ
—Ž‹ ƒ ƒ—Ž–Ǥ†‹•
—••‹‘‘ˆ–Š‡•‡
•‡
‘†ƒ”›‡ˆˆ‡
–•‹•’”‘˜‹†‡†‹–Š‡ˆ‘ŽŽ‘™‹‰•‡
–‹‘•Ǥ



3.5.1 LurchingandShallowGroundRupture

 ‘ ‹ Ž Ž — ”
Š ‹  ‰ ” ‡ ˆ ‡ ” • – ‘ – Š ‡ ” ‘ Ž Ž ‹  ‰  ‘ – ‹ ‘  ‘  – Š ‡ ‰ ” ‘ —  † • — ” ˆ ƒ ‡ „ › – Š ‡ ’ ƒ • • ƒ ‰ ‡ ‘ ˆ 
•‡‹•‹
 •—”ˆƒ
‡ ™ƒ˜‡•Ǥ ˆˆ‡
–• ‘ˆ –Š‹• ƒ–—”‡ ƒ”‡ ‘– Ž‹‡Ž› –‘ „‡ •‹‰‹ˆ‹ ƒ– ™Š‡”‡ –Š‡
–Š‹
‡••‘ˆ•‘ˆ–•‡†‹‡–•†‘‡•‘–˜ƒ”›ƒ’’”‡
‹ƒ„Ž›—†‡”•–” —
–—”‡•Ǥ‹‘”
”ƒ
‹‰
‘ ˆ  ‡ ƒ ” Ǧ • — ” ˆ ƒ
‡ • ‘ ‹ Ž • ǡ † — ‡ – ‘ • Š ƒ  ‹  ‰ ˆ ” ‘  † ‹ • – ƒ  – • ‡ ‹ •  ‹ ‡ ˜ ‡ –•ǡ ‹• ‘–
‘•‹†‡”‡† ƒ
•‹‰‹ˆ‹
ƒ–Šƒœƒ”†ǡƒŽ–Š‘—‰Š‹–‹•ƒ’‘••‹„‹Ž‹–›ƒ–ƒ›•‹–‡Ǥ 


3.5.2 LiquefactionandDynamicSettlement

‹“—‡ˆƒ
–‹‘‹•ƒ•‡‹•‹
’Š‡‘‡‘‹™Š‹
ŠŽ‘‘•‡ǡ•ƒ–—”ƒ–‡†ǡ ‰”ƒ—Žƒ”•‘‹Ž•„‡Šƒ˜‡
•‹‹Žƒ”Ž›–‘ƒˆŽ—‹†™Š‡•—„Œ‡
––‘Š‹‰ŠǦ‹–‡•‹–›‰”‘—†•Šƒ ‹‰Ǥ‹“—‡ˆƒ
–‹‘‘

—”•
™Š‡ –Š”‡‡ ‰‡‡”ƒŽ
‘†‹–‹‘•
‘‡š‹•–ǣ ͳȌ •ŠƒŽŽ‘™ ‰”‘—†™ƒ–‡”ǢʹȌ Ž‘™ †‡•‹–› ‘Ǧ

‘Š‡•‹˜‡ ȋ‰”ƒ—Žƒ”Ȍ •‘‹Ž•Ǣ ƒ† ͵Ȍ Š‹‰ŠǦ‹–‡•‹–› ‰”‘—† ‘–‹‘Ǥ – — † ‹ ‡ • ‹  † ‹ ƒ – ‡ – Š ƒ – 
Ž‘‘•‡ǡ •ƒ–—”ƒ–‡†ǡ ‡ƒ”Ǧ•—”ˆƒ
‡ǡ
‘Š‡•‹‘Ž‡•• •‘‹Ž• ‡šŠ‹„‹– –Š‡ Š‹‰Š‡•– Ž‹“—‡ˆƒ
–‹‘
’ ‘ – ‡  – ‹ ƒ Ž ǡ ™ Š ‹ Ž ‡ † ” › ǡ † ‡  • ‡ ǡ 
‘ Š ‡ • ‹ ‘  Ž ‡ • • • ‘ ‹ Ž • ǡ ƒ  † 
‘ Š ‡ • ‹ ˜ ‡ • ‘ ‹ Ž • ‡ š Š ‹ „ ‹ – Ž ‘ ™ – ‘ 
‡‰Ž‹‰‹„Ž‡ Ž‹“—‡ˆƒ
–‹‘ ’‘–‡–‹ƒŽǤ
 ‰‡‡”ƒŽǡ
‘Š‡•‹˜‡ •‘‹Ž• ƒ ”‡ ‘–
‘•‹†‡”‡†
•—•
‡’–‹„Ž‡–‘Ž‹“—‡ˆƒ
–‹‘ǡ†‡’‡†‹‰‘–Š‡‹”’Žƒ•–‹
‹–›ƒ†‘‹•–—”‡
‘–‡–Ǥˆˆ‡
–•‘ˆ
Ž‹“—‡ˆƒ
–‹‘‘Ž‡˜‡Ž‰”‘—†‹
Ž—†‡•‡––Ž‡‡–ǡ•ƒ†„‘‹Ž•ǡƒ†„‡ƒ”‹‰
ƒ’ƒ
‹–›ˆƒ‹Ž—”‡•
„‡Ž‘™ •–”—
–—”‡•Ǥ ›ƒ‹
 •‡––Ž‡‡– ‘ˆ †”› Ž‘‘•‡ •ƒ†•
ƒ ƒŽ•‘ ‘

—” ƒ• –Š‡ •ƒ†
’ƒ”–‹
Ž‡•–‡†–‘•‡––Ž‡ƒ††‡•‹ˆ›ƒ•ƒ”‡•—Ž–‘ˆƒ•‡‹•‹
‡˜‡–Ǥ

ƒ•‡†‘–Š‡Žƒ
‘ˆ•ŠƒŽŽ‘™‰”‘—†™ƒ–‡”ȋ‰”‡ƒ–‡”–ŠƒͳͷǤͷˆ‡‡–„‡Ž‘™‰”‘—†•—”ˆƒ ‡Ȍǡ
†‡•‡ƒ–—”‡‘ˆ–Š‡‘•‹–‡•‘‹Ž•ȋŠ‘ŽŽ‘™Ǧ•–‡”‡ˆ—•ƒŽƒ–ͳͷǤͷˆ ‡‡–„‡Ž‘™‰”‘—†•—”ˆƒ ‡Ȍǡ
ƒ† –Š‡ ’”‡•‡
‡ ‘ˆ ˆ‹‡Ǧ‰”ƒ‹‡† •‘‹Ž•ǡ –Š‡ ’‘–‡–‹ƒŽ ˆ‘” Ž‹“—‡ ˆƒ –‹‘ ‘” †›ƒ‹

•‡––Ž‡‡––‘‹’ƒ
––Š‡•‹–‡‹•
‘•‹†‡”‡†˜‡”›Ž‘™Ǥ



3.5.3 LateralSpreading

ƒ–‡”ƒŽ •’”‡ƒ†‹‰ ‹• ƒ –›’‡ ‘ˆ Ž‹“—‡ˆƒ
–‹‘ ‹†—
‡† ‰”‘—† ˆƒ‹Ž—”‡ ƒ••‘
‹ƒ–‡† ™‹–Š –Š‡
Žƒ–‡”ƒŽ †‹•’Žƒ
‡‡– ‘ˆ •—”ˆ‹
‹ƒŽ „Ž‘
• ‘ˆ •‡†‹‡– ”‡•—Ž–‹‰ ˆ”‘ Ž‹“—‡ˆƒ
–‹‘ ‹ ƒ
•—„•—”ˆƒ
‡ Žƒ›‡”Ǥ 
‡ Ž‹“—‡ˆƒ
–‹‘ –”ƒ•ˆ‘”• –Š‡ •—„•—”ˆƒ
‡ Žƒ›‡” ‹–‘ ƒ ˆŽ—‹† ƒ••ǡ
‰”ƒ˜‹–› ’Ž—• –Š‡ ‡ƒ”–Š“—ƒ‡ ‹‡”–‹ƒŽ ˆ‘”
‡• ƒ›
ƒ—•‡ –Š‡ ƒ•• –‘ ‘˜‡ †‘™•Ž‘’‡
–‘™ƒ”†•ƒˆ”‡‡ˆƒ
‡ȋ•—
Šƒ•ƒ”‹˜‡”
Šƒ‡Ž‘”ƒ‡„ƒ‡–ȌǤ ƒ–‡”ƒŽ•’”‡ƒ†‹‰ƒ›

ƒ—•‡Žƒ”‰‡Š‘”‹œ‘–ƒŽ†‹•’Žƒ
‡‡–•ƒ†•—
Š‘˜‡‡––›’‹
ƒŽŽ ›†ƒƒ‰‡•’‹’‡Ž‹‡•ǡ
—–‹Ž‹–‹‡•ǡ„”‹†‰‡•ǡƒ†•–”—
–—”‡•Ǥ

—‡–‘–Š‡˜‡”›Ž‘™’‘–‡–‹ƒŽˆ‘”Ž‹“—‡ˆƒ
–‹‘ǡ–Š‡’‘–‡–‹ƒŽˆ ‘”Žƒ–‡”ƒŽ•’”‡ƒ†‹‰‹•ƒŽ•‘

‘•‹†‡”‡†˜‡”›Ž‘™Ǥ

Project No. 21138-01 Page 9 July 15, 2021



3.5.4 TsunamisandSeiches

 ƒ • ‡ † ‘  – Š ‡ † ‹ • – ƒ 
‡ ‘ ˆ – Š ‡ • ‹ – ‡ ˆ ” ‘  – Š ‡ • ‡ ƒ ƒ  † ‘ – Š ‡ ” Ž ƒ ” ‰ ‡ „ ‘ † ‹ ‡ • ‘ ˆ ™ ƒ – ‡ ” ǡ – Š ‡  ’‘••‹„‹Ž‹–›‘ˆ•‡‹
Š‡•ƒ†Ȁ‘”–•—ƒ‹•ƒˆˆ‡
–‹‰–Š‡•‹–‡‹•
‘•‹†‡”‡†–‘„‡˜‡”›Ž‘™Ǥ



3.6 Rippability

ƒ•‡†‘‘—”‡˜ƒŽ—ƒ–‹‘ǡ”‹’’ƒ„‹Ž‹–›‹•‘–ƒ–‹
‹’ƒ–‡†–‘„‡ƒ ‹••—‡†—”‹‰•‹–‡
‘•–”—
–‹‘Ǥ
–
‹• ƒ–‹
‹’ƒ–‡† –Šƒ– –Š‡ ‘•‹–‡ ƒ–‡”‹ƒŽ• ƒ› „‡ ‡š
ƒ˜ƒ–‡† ™‹–Š
‘˜‡–‹‘ƒŽ
‘•–”—
–‹‘
‡“—‹’‡–Ǥ



3.7 OversizedMaterial

‹‰‹ˆ‹
ƒ–ƒ‘—–•‘ˆ‘˜‡”•‹œ‡†ƒ–‡”‹ƒŽȋƒ–‡”‹ƒŽŽƒ”‰‡”–Šƒͺ‹ Š‡•‹ƒš‹—†‹‡•‹‘Ȍ
™‡”‡‘–‡
‘—–‡”‡††—”‹‰–Š‡•‹–‡•—„•—”ˆƒ
‡‡˜ƒŽ—ƒ–‹‘•Ǥ
‘™‡˜‡”ǡ–Š‡”‡‹•–Š‡’‘–‡–‹ƒŽˆ‘”
•‘‡ ‘˜‡”•‹œ‡† ƒ–‡”‹ƒŽ –‘ „‡ ‡
‘—–‡”‡† †—”‹‰ •‹–‡ ‰”ƒ†‹‰ǡ ‹  – Š ‡ ˆ ‘ ”  ‘ ˆ  ‘ „ „ Ž ‡ • ‘ ” 

‘ 
” ‡ – ‹ ‘ •™ ‹ – Š ‹ – Š ‡•‹ – ‡  ƒ – ‡” ‹ ƒ Ž •ƒ  †Ȁ ‘ ” ‘ 
” ‡ – ‡ †‡ „ ”‹ •ˆ”‘ ’”‡˜‹‘—• •‹–‡ ‹’”‘˜‡‡–•Ǥ ‘” ƒ› ‘˜‡”•‹œ‡† ƒ–‡”‹ƒŽ ‡
‘—–‡”‡† –Šƒ–
ƒ‘– „‡ „”‘‡ †‘ ™ –‘ ™‘”ƒ„Ž‡ •‹œ‡ǡ
”‡
‘‡†ƒ–‹‘•ƒ”‡’”‘˜‹†‡†ˆ‘”ƒ’’”‘’”‹ƒ–‡Šƒ†Ž‹‰‹’’‡†‹šǤ 


3.8 ExpansiveSoilCharacteristics

 š ’ ƒ  • ‹ ‘  ’ ‘ – ‡  – ‹ ƒ Ž – ‡ • – ‹  ‰ ‘ ˆ – ™ ‘ • ƒ  ’ Ž ‡ • ‘ „ – ƒ ‹  ‡ † ˆ ” ‘  „ ‘ ” ‹  ‰ •   Ǧ ͳ ƒ  † 
Ǧ ʹ › ‹ ‡ Ž † ‡ † 
š’ƒ•‹‘
†‡š˜ƒŽ—‡•‘ˆ͵ʹƒ†ͷͷǡ”‡•’‡
–‹˜‡Ž›ǡ
Žƒ••‹ˆ‹‡†ƒ •Dz‘™dzƒ†Dz‡†‹—dz’‘–‡–‹ƒŽ
ˆ‘”‡š’ƒ•‹‘Ǥ



3.9 CorrosionPotential

‘””‘•‹‘–‡•–‹‰‹†‹
ƒ–‡†ƒ•—Žˆƒ–‡
‘–‡–‘ˆƒ’’”‘š‹ƒ–‡Ž›ͳͻ͵’’ȋŽ‡••–ŠƒͲǤͲͳͻ’‡”
‡–Ȍǡ

ŠŽ‘”‹†‡
‘–‡–‘ˆͳͶͻ’ƒ”–•’‡”‹ŽŽ‹‘ȋ’’Ȍǡƒ’
‘ˆ͹Ǥͻͻƒ†ƒ‹‹—”‡•‹•–‹˜‹–›‘ˆ͹ͶͲ
‘ŠǦ
Ǥ ƒ•‡† ‘ ƒŽ–”ƒ• ‘””‘•‹‘
—‹†‡Ž‹‡• ȋƒŽ–”ƒ•ǡ ʹͲʹͳȌ ǡ •‘‹Ž• ƒ”‡
‘•‹†‡”‡†

‘ ” ” ‘ • ‹ ˜ ‡ – ‘ • – ” —
– — ” ƒ Ž ‡ Ž ‡  ‡  – • ‹ ˆ – Š ‡ ’
‹ • ͷ Ǥ ͷ ‘ ” Ž ‡ • • ǡ ‘ ” –Š‡
ŠŽ‘”‹†‡
‘
‡–”ƒ–‹‘ ‹• ͷͲͲ
’’‘”‰”‡ƒ–‡”ǡ‘”–Š‡•—Žˆƒ–‡
‘
‡–”ƒ–‹‘‹•ʹǡͲͲͲ’’ȋͲǤʹ’‡”
‡–Ȍ‘”‰”‡ƒ–‡”Ǥ





Project No. 21138-01 Page 10 July 15, 2021
Ͷ.0CONCLUSIONS

 ƒ • ‡ † ‘  – Š ‡ ” ‡ • — Ž – • ‘ ˆ ‘ — ” Ž ‹  ‹ – ‡ † ‡ ˜ ƒ Ž — ƒ – ‹ ‘  ǡ ” ‡ ˜ ‹ ‡ ™ ‘ ˆ – Š ‡ ’”‘Œ‡ – ‰‡‘–‡
Š‹
ƒŽ ”‡’‘”–ǡ ƒ† ‘—”
—†‡”•–ƒ†‹‰‘ˆ–Š‡’”‘’‘•‡††‡˜‡Ž‘’‡–ǡ‹–‹•‘—”‘’‹‹‘–Šƒ––Š‡’”‘’‘•‡††‡˜‡Ž‘’‡–‹•ˆ‡ƒ•‹„Ž‡ ˆ”‘ƒ‰‡‘–‡
Š‹
ƒŽ•–ƒ†’‘‹–ǡ’”‘˜‹†‡†–Š‡”‡
‘‡†ƒ–‹‘•
‘–ƒ‹‡†‹–Š‡ˆ‘ŽŽ‘™‹‰•‡
–‹‘•ƒ”‡
‹
‘”’‘”ƒ–‡††—”‹‰•‹–‡†‡•‹‰ǡ‰”ƒ†‹‰ǡƒ†
‘•–”—
–‹‘Ǥ

Š‡ˆ‘ŽŽ‘™‹‰‹•ƒ•—ƒ”›‘ˆ–Š‡’”‹ƒ”›‰‡‘–‡
Š‹
ƒŽˆƒ
–‘”•ǡ™Š‹
Šƒ›ƒˆˆ‡
–ˆ—–—”‡”‡†‡˜‡Ž‘’‡–
‘ˆ–Š‡•‹–‡Ǥ

x Š‡ •‹–‡ ‹• ’”‡†‘‹ƒ–‡Ž› —†‡”Žƒ‹ „›
‘’‡–‡– ‘Ž†‡” ƒ”–‹ˆ‹
‹ƒŽ ˆ‹ŽŽ ™Š‹
Š ‘˜‡”Ž‹‡• —ƒ–‡”ƒ”›
‘Ž†‡”ƒŽŽ—˜‹ƒŽƒ–‡”‹ƒŽǤƒ•‡†‘–Š‡
‡‘Ž‘‰‹
ƒ’‘ˆ
‡ƒ•‹†‡ ͵Ͳǯš͸Ͳǯ—ƒ†”ƒ‰Ž‡ȋ
ǡʹͲͲ͹Ȍǡ
–Š‡•‹–‡‹•—†‡”Žƒ‹ƒ–†‡’–Š„›Šƒ”†„‡†”‘

‘•‹•–‹‰‘ˆ”‡–ƒ
‡‘—•ƒ‰‡’Ž—–‘‹
–‘ƒŽ‹–‡ǤŠ‹•‹•
‘–‡š’‡
–‡†–‘‹’ƒ
–•‹–‡†‡˜‡Ž‘’‡–Ǥ
x
‰‡‡”ƒŽǡ‘—”„‘”‹‰•‹†‹
ƒ–‡–Šƒ––Š‡•‹–‡
‘–ƒ‹•’”‹ƒ”‹Ž›‡†‹—†‡•‡–‘†‡•‡•‹Ž–›Ȁ
Žƒ›‡›
•ƒ†•ȋƒ”–‹ˆ‹
‹ƒŽˆ‹ŽŽȌ—†‡”Žƒ‹„›†‡•‡
Žƒ›‡›•ƒ†•ǡ•‹Ž–›•ƒ†•ǡƒ†•ƒ†›•‹Ž–•ȋ‘Ž†‡”ƒŽŽ—˜‹—Ȍ–‘ –Š‡ ƒš‹— ‡š’Ž‘”‡† †‡’–Š ‘ˆ ƒ’’”‘š‹ƒ–‡Ž› ͳͷǤͷ ˆ‡‡– „‡Ž‘™ ‡š‹•–‹‰ ‰”ƒ†‡Ǥ Š‡ ‡ƒ”Ǧ•—”ˆƒ ‡
•‘‹Ž•ƒ”‡‘–•—‹–ƒ„Ž‡ˆ‘”–Š‡’Žƒ‡†‹’”‘˜‡‡–•‹–Š‡‹”’”‡•‡– ‘†‹–‹‘Ǥ
x ”‘ƒ‰‡‘–‡
Š‹
ƒŽ’‡”•’‡
–‹˜‡ǡ–Š‡‡š‹•–‹‰‘•‹–‡•‘‹Ž•ƒ”‡ •—‹–ƒ„Ž‡ƒ–‡”‹ƒŽˆ‘”—•‡ƒ•‰‡‡”ƒŽ ˆ‹ŽŽǡ’”‘˜‹†‡†–Šƒ––Š‡›ƒ”‡”‡Žƒ–‹˜‡Ž›ˆ”‡‡ˆ”‘”‘
•ȋŽƒ”‰‡”–Šƒͺ‹
Š‡•‹ƒš‹—†‹‡•‹‘Ȍǡ

‘•–”—
–‹‘†‡„”‹•ǡƒ†•‹‰‹ˆ‹
ƒ–‘”‰ƒ‹
ƒ–‡”‹ƒŽǤ
x Š‡•‹–‡
‘–ƒ‹••‘‹Ž•–Šƒ–ƒ”‡‘–•—‹–ƒ„Ž‡ˆ‘””‡–ƒ‹‹‰™ƒŽ Ž„ƒ ˆ‹ŽŽ†—‡–‘–Š‡‹”ˆ‹‡•
‘–‡–ƒ†
‡š’ƒ•‹‘ ’‘–‡–‹ƒŽǡ –Š‡”‡ˆ‘”‡ ‹’‘”– ™‹ŽŽ „‡ ”‡“—‹”‡† „› –Š‡ ‘–”ƒ
–‘” ˆ‘” ‘„–ƒ‹‹‰ •—‹–ƒ„Ž‡
„ƒ
ˆ‹ŽŽ •‘‹Ž ˆ‘” ƒ› ’Žƒ‡† •‹–‡ ”‡–ƒ‹‹‰ ™ƒŽŽ•Ǥ Š‡ ‘–”ƒ
–‘” •Š‘—Ž†
‘•‹†‡” –Šƒ– ‹’‘”– ‘ˆ
•ƒ†›•‘‹Ž•ƒ›„‡”‡“—‹”‡†ˆ‘””‡–ƒ‹‹‰™ƒŽŽ„ƒ
ˆ‹ŽŽǤ
x
”‘—†™ƒ–‡” ™ƒ• ‘– ‡
‘—–‡”‡† –‘ –Š‡ ƒš‹— ‡š’Ž‘”‡† †‡’–Š ‘ˆ ƒ’’”‘š‹ƒ–‡Ž› ͳͷǤͷ ˆ‡‡– „‡Ž‘™‡š‹•–‹‰‰”‘—†•—”ˆƒ
‡Ǥ
x Š‡•—„Œ‡
–•‹–‡‹•‘–Ž‘
ƒ–‡†™‹–Š‹ƒŽ“—‹•–Ǧ”‹‘Ž‘ƒ”–Š“ —ƒ‡ ƒ—Ž–
‘‡ƒ†‘ˆƒ—Ž–•™‡”‡
‹†‡–‹ˆ‹‡†‘–Š‡•‹–‡†—”‹‰‘—”•‹–‡‡˜ƒŽ—ƒ–‹‘ǤŠ‡’‘••‹„‹Ž‹–›‘ˆ†ƒƒ‰‡†—‡–‘‰”‘—†”—’–—”‡‹•

‘•‹†‡”‡†Ž‘™•‹
‡‘ƒ
–‹˜‡ˆƒ—Ž–•ƒ”‡‘™–‘
”‘••–Š‡•‹–‡Ǥ
x Š‡•‹–‡™‹ŽŽ‰‡‡”ƒŽŽ›
‘•‹•–‘ˆ
‘’ƒ
–‡†ˆ‹ŽŽ‘˜‡”‡š‹•–‹‰‡†‹—†‡•‡–‘˜‡”›†‡•‡Ȁ•–‹ˆˆ•‘‹Ž•Ǥ —‡–‘–Š‡†‡•‡ƒ–—”‡‘ˆ•‹–‡•‘‹Ž•ǡ–Š‡Žƒ
‘ˆ•ŠƒŽŽ‘™‰”‘—†™ƒ–‡”ȋ‰”‡ƒ–‡”–ŠƒͳͷǤͷˆ‡‡–„‡Ž‘™ ‰”‘—† •—”ˆƒ
‡Ȍǡ ƒ† –Š‡ ’”‡•‡
‡ ‘ˆ ˆ‹‡Ǧ‰”ƒ‹‡† •‘‹Ž• –Š‡ ’‘–‡–‹ƒŽ ˆ‘” Ž‹“—‡ˆƒ –‹‘ ƒ† †›ƒ‹

•‡––Ž‡‡–‹•
‘•‹†‡”‡†˜‡”›Ž‘™Ǥ
x ƒ•‡† ‘ ’”‡Ž‹‹ƒ”› Žƒ„‘”ƒ–‘”› –‡•–‹‰ǡ •‹–‡ •‘‹Ž• ƒ”‡ ƒ–‹ ‹’ƒ–‡† –‘ Šƒ˜‡ Dz‡†‹—dz ‡š’ƒ•‹‘
’‘–‡–‹ƒŽǤ ‹–‹‰ƒ–‹‘ ‡ƒ•—”‡• ƒ”‡ ”‡“—‹”‡† ˆ‘” ˆ‘—†ƒ–‹‘• ƒ† •‹–‡ ‹’”‘˜‡‡–• Ž‹‡ ‘
”‡–‡
ˆ Ž ƒ – ™ ‘ ”  – ‘  ‹  ‹  ‹ œ ‡ – Š ‡ ‹  ’ ƒ
– • ‘ ˆ ‡ š ’ ƒ  • ‹ ˜ ‡ • ‘ ‹ Ž • Ǥ  ‹  ƒ Ž † ‡ • ‹ ‰  ‡ š ’ ƒ  • ‹ ‘  ’ ‘ – ‡  – ‹ ƒ Ž  — • – „ ‡  †‡–‡”‹‡†ƒ––Š‡
‘’Ž‡–‹‘‘ˆ‰”ƒ†‹‰Ǥ
x
‡‡”ƒ–‹‘ ‘ˆ ƒ •—”’Ž—• ‘ˆ ‘˜‡”•‹œ‡† ƒ–‡”‹ƒŽ ȋƒ–‡”‹ƒŽ ‰”‡ƒ–‡” – Š ƒ  ͺ ‹  Š ‡ • ‹   ƒ š ‹  —  
†‹‡•‹‘Ȍ‹•‰‡‡”ƒŽŽ›‘–ƒ–‹
‹’ƒ–‡††—”‹‰•‹–‡‰”ƒ†‹‰Ǥ
x
–‹•”‡
‘‡†‡†–Šƒ–‘‹•–—”‡
‘–‡–‘ˆ–Š‡•—„‰”ƒ†‡•‘‹Ž•„‡Ž‘™•Žƒ„•„‡ƒ‹–ƒ‹‡†—’–‘–Š‡ –‹‡‘ˆ
‘
”‡–‡’Žƒ
‡‡–†—‡–‘ •‹–‡‡š’ƒ•‹˜‡•‘‹Ž•ǤŠ‡
‘ –”ƒ
–‘”•Š‘—Ž†ƒ–‹
‹’ƒ–‡™ƒ–‡”‹‰
ƒ†™‡––‹‰†‘™•—„‰”ƒ†‡•‘‹Ž•–‘ƒ‹–ƒ‹–Š‡‘‹•–—”‡ ‘–‡ –‘ˆ–Š‡
‘’ƒ
–‡†ˆ‹ŽŽ•‘‹Ž•ƒ†
‘–ƒŽŽ‘™–Š‡•—„‰”ƒ†‡–‘†”›‘—–—’—–‹Ž–Š‡’Žƒ
‡‡–‘ˆ
‘
”‡–‡Ǥ
x Š”‡‡ ˆ‹‡Ž† ’‡”
‘Žƒ–‹‘ –‡•–• ”‡•—Ž–‡† ‹ ‡‰Ž‹‰‹„Ž‡ ‹ˆ‹Ž–”ƒ–‹‘Ǥ ‹–‡ ™‹ŽŽ ‘•‹•– ‘ˆ
‘’ƒ
–‡† ˆ‹ŽŽ
‘˜‡” •–‹ˆˆ
‘Š‡•‹˜‡ •‘‹Ž•Ǣ –Š‡•‡ •‘‹Ž• Šƒ˜‡ ˜‡”› Ž‘™ ’‡”‡ƒ„‹Ž‹ –› ƒ† –Š‡”‡ˆ‘”‡ Šƒ˜‡ ˜‡”› Ž‘™ ‹ˆ‹Ž–”ƒ–‹‘”ƒ–‡•Ǥ

Project No. 21138-01 Page 11 July 15, 2021


5.0PRELIMINARYRECOMMENDATIONS

 Š ‡ ˆ ‘ Ž Ž ‘ ™ ‹  ‰ ” ‡
‘   ‡  † ƒ – ‹ ‘  • ƒ ” ‡ – ‘ „ ‡ 
‘  • ‹ † ‡ ” ‡ † ’ ” ‡ Ž ‹  ‹  ƒ ” › ƒ† •Š‘—Ž† „‡ ‘ˆ‹”‡† —’‘

‘’Ž‡–‹‘ ‘ˆ ‡ƒ”–Š™‘” ‘’‡”ƒ–‹‘•Ǥ
 ƒ††‹–‹‘ǡ –Š‡› •Š‘—Ž† „‡
‘•‹†‡”‡† ‹‹ƒŽ ˆ”‘ ƒ
‰‡‘–‡
Š‹
ƒŽ˜‹‡™’‘‹–ǡƒ•–Š‡”‡ƒ›„‡‘”‡”‡•–”‹
–‹˜‡”‡“—‹” ‡‡–•ˆ”‘–Š‡ƒ”
Š‹–‡
–ǡ•–”—
–—”ƒŽ
‡‰‹‡‡”ǡ„—‹Ž†‹‰
‘†‡•ǡ‰‘˜‡”‹‰ƒ‰‡
‹‡•ǡ‘”–Š‡‹–›Ǥ
–‹ •–Š‡”‡•’‘•‹„‹Ž‹–›‘ˆ–Š‡‘™‡”–‘‡•—”‡
–Š‡•‡”‡
‘‡†ƒ–‹‘•ƒ”‡’”‘˜‹†‡†–‘–Š‡ƒ’’”‘’”‹ƒ–‡’ƒ”–‹‡•Ǥ 

–•Š‘—Ž†„‡‘–‡†–Šƒ––Š‡ˆ‘ŽŽ‘™‹‰‰‡‘–‡
Š‹
ƒŽ”‡
‘‡†ƒ–‹ ‘•ƒ”‡‹–‡†‡†–‘’”‘˜‹†‡•—ˆˆ‹
‹‡–
‹ˆ‘”ƒ–‹‘ –‘ †‡˜‡Ž‘’ –Š‡ •‹–‡ ‹ ‰‡‡”ƒŽ ƒ

‘”†ƒ
‡ ™‹–Š –Š‡ʹͲͳͻ ƒŽ‹ˆ‘”‹ƒ —‹Ž†‹‰ ‘†‡ ȋȌ
”‡“—‹”‡‡–•Ǥ‹–Š”‡‰ƒ”†–‘–Š‡’‘–‡–‹ƒŽ‘

—””‡
‡‘ˆ’‘–‡–‹ƒŽŽ›
ƒ–ƒ•–”‘’Š‹
‰‡‘–‡
Š‹
ƒŽŠƒœƒ”†•
•—
Š ƒ• ˆƒ—Ž– ”—’–—”‡ǡ ‡ƒ”–Š“—ƒ‡Ǧ‹†—
‡† Žƒ†•Ž‹†‡•ǡ Ž‹“—‡ˆƒ
–‹‘ǡ ‡–
Ǥ –Š‡ ˆ‘ŽŽ‘™‹‰ ‰‡‘–‡
Š‹
ƒŽ
”‡
‘‡†ƒ–‹‘••Š‘—Ž†’”‘˜‹†‡ƒ†‡“—ƒ–‡’”‘–‡
–‹‘ˆ‘”–Š‡’”‘’ ‘•‡†”‡†‡˜‡Ž‘’‡––‘–Š‡‡š–‡–
”‡“—‹”‡†–‘”‡†—
‡•‡‹•‹
”‹•–‘ƒDzƒ

‡’–ƒ„Ž‡Ž‡˜‡ŽǤdzŠ‡Dz ƒ

‡’–ƒ„Ž‡Ž‡˜‡Ždz‘ˆ”‹•‹•†‡ˆ‹‡†„›–Š‡
 ƒ Ž ‹ ˆ ‘ ”  ‹ ƒ  ‘ † ‡ ‘ ˆ  ‡ ‰ — Ž ƒ – ‹ ‘  • ƒ • Dz – Š ‡ Ž ‡ ˜ ‡ Ž – Š ƒ – ’ ” ‘ ˜ ‹ † ‡ • ” ‡ ƒ • ‘  ƒ „ Ž ‡ ’ ” ‘ – ‡ – ‹ ‘  ‘ ˆ – Š ‡ ’ — „ Ž ‹
• ƒ ˆ ‡ – › ǡ 
–Š‘—‰Š ‹– †‘‡• ‘– ‡
‡••ƒ”‹Ž› ‡•—”‡
‘–‹—‡†•–”—
–—”ƒŽ ‹–‡‰”‹–› ƒ† ˆ—
–‹‘ƒŽ‹–› ‘ˆ –Š‡’”‘Œ‡
–dz
ȏ‡
–‹‘͵͹ʹͳȋƒȌȐǤŠ‡”‡ˆ‘”‡ǡ”‡’ƒ‹”ƒ†”‡‡†‹ƒŽ™‘”‘ˆ–Š‡’”‘’‘•‡†‹’”‘˜‡‡–ƒ›„‡”‡“—‹”‡† ƒˆ–‡”ƒ•‹‰‹ˆ‹
ƒ–•‡‹•‹
‡˜‡–Ǥ‹–Š”‡‰ƒ”†•–‘–Š‡’‘–‡–‹ƒ Žˆ‘”Ž‡•••‹‰‹ˆ‹ ƒ–‰‡‘Ž‘‰‹
Šƒœƒ”†•–‘
–Š‡ ’”‘’‘•‡† ”‡†‡˜‡Ž‘’‡–ǡ –Š‡ ”‡
‘‡†ƒ–‹‘•
‘–ƒ‹‡† Š‡”‡‹ ƒ”‡ ‹–‡†‡† ƒ• ƒ ”‡ƒ•‘ƒ„Ž‡
’”‘–‡
–‹‘ƒ‰ƒ‹•––Š‡’‘–‡–‹ƒŽ†ƒƒ‰‹‰‡ˆˆ‡
–•‘ˆ‰‡‘–‡
Š‹
ƒŽ’Š‡‘‡ƒ•—
Šƒ•‡š’ƒ•‹˜‡•‘‹Ž•ǡ
ˆ ‹ Ž Ž • ‡ – – Ž ‡  ‡  – ǡ ‰ ” ‘ —  † ™ ƒ – ‡ ” • ‡ ‡ ’ ƒ ‰ ‡ ǡ ‡ – Ǥ 
– • Š ‘ — Ž † „ ‡ —  † ‡ ” • –‘‘†ǡ Š‘™‡˜‡”ǡ –Šƒ– ƒŽ–Š‘—‰Š ‘—” ”‡
‘‡†ƒ–‹‘• ƒ”‡ ‹–‡†‡† –‘ ƒ‹–ƒ‹ –Š‡ •–”—
–—”ƒŽ ‹–‡‰”‹–› ‘ˆ –Š‡ ’”‘’‘•‡† ”‡†‡˜‡Ž‘’‡–
ƒ† •–”—
–—”‡• ‰‹˜‡ –Š‡ •‹–‡ ‰‡‘–‡
Š‹
ƒŽ
‘†‹–‹‘•ǡ –Š‡›
ƒ ‘ – ’ ” ‡
Ž — † ‡ – Š ‡ ’ ‘ – ‡  – ‹ ƒ Ž ˆ ‘ ” • ‘  ‡ 

‘•‡–‹
†‹•–”‡••‘”—‹•ƒ
‡‹••—‡•–‘†‡˜‡Ž‘’ƒ•ƒ”‡•—Ž–‘ˆ–Š‡•‹–‡‰‡‘–‡
Š‹
ƒŽ
‘†‹–‹‘•Ǥ

Š‡ ‰‡‘–‡
Š‹
ƒŽ ”‡
‘‡†ƒ–‹‘•
‘–ƒ‹‡† Š‡”‡‹ —•– „‡
‘ˆ‹”‡† –‘ „‡ •—‹–ƒ„Ž‡ ‘” ‘†‹ˆ‹‡†
„ƒ•‡†‘–Š‡ƒ
–—ƒŽ‡š’‘•‡†
‘†‹–‹‘•Ǥ



5.1 SiteEarthwork

 ‡ ƒ  – ‹
‹ ’ ƒ – ‡ – Š ƒ – ‡ ƒ ” – Š ™ ‘ ”  ƒ – – Š ‡ • ‹ – ‡ ™ ‹ Ž Ž ‰ ‡  ‡ ” ƒ Ž Ž ›  ‘  • ‹ • – ‘ˆ ‡š
ƒ˜ƒ–‹‘ ˆ‘” –Š‡ ”‡‡†‹ƒŽ
”‡‘˜ƒŽ•ǡˆ‘—†ƒ–‹‘
‘•–”—
–‹‘ǡƒ†—–‹Ž‹–›Ž‹‡‹•–ƒŽŽƒ–‹‘ƒ†„ƒ
ˆ‹ŽŽǤ‡”‡
‘‡†–Šƒ–
‡ƒ”–Š™‘” ‘•‹–‡ „‡ ’‡”ˆ‘”‡† ‹ ƒ

‘”†ƒ
‡ ™‹–Š –Š‡ ˆ‘ŽŽ‘™‹‰ ”‡
‘‡†ƒ–‹‘•ǡ ˆ—–—”‡
‰”ƒ†‹‰’Žƒ”‡˜‹‡™”‡’‘”–ȋ•Ȍǡ–Š‡ʹͲͳͻȀ‹–›‘ˆƒƒ” ‘• ‰”ƒ†‹‰”‡“—‹”‡‡–•ǡƒ†–Š‡

‡‡”ƒŽ ƒ”–Š™‘” ƒ†
”ƒ†‹‰ ’‡
‹ˆ‹
ƒ–‹‘• ‹
Ž—†‡† ‹ ’’‡†‹ š  Ǥ 
 
ƒ • ‡ ‘ ˆ 
‘  ˆ Ž ‹
– ǡ – Š ‡ 
ˆ‘ŽŽ‘™‹‰ ”‡
‘‡†ƒ–‹‘• •ŠƒŽŽ •—’‡”•‡†‡ –Š‘•‡ ‹
Ž—†‡† ‹ ’’ ‡  † ‹ š  Ǥ  Š ‡ ˆ ‘ Ž Ž ‘ ™ ‹  ‰  ”‡
‘‡†ƒ–‹‘• •Š‘—Ž† „‡
‘•‹†‡”‡† ’”‡Ž‹‹ƒ”› ƒ† ƒ› „‡ ”‡˜‹•‡† ƒˆ–‡” ”‡˜‹‡™ ‘ˆ –Š‡ ‰”ƒ†‹‰’Žƒ•‘”„ƒ•‡†‘–Š‡ƒ
–—ƒŽ
‘†‹–‹‘•‡
‘—–‡”‡††—”‹‰•‹–‡‰”ƒ†‹‰Ǥ



5.1.1 SitePreparation

”‹‘”–‘‰”ƒ†‹‰‘ˆƒ”‡ƒ•–‘”‡
‡‹˜‡•–”—
–—”ƒŽˆ‹ŽŽ‘”‡‰‹‡‡”‡†‹’”‘˜‡‡–•ǡ–Š‡ƒ”‡ƒ•
•Š‘—Ž† „‡
Ž‡ƒ”‡† ‘ˆ ‡š‹•–‹‰ „—‹Ž†‹‰ •–”—
–—”‡•ǡ ƒ•’ŠƒŽ–ǡ •—” ˆƒ
‡ ‘„•–”—
–‹‘•ǡ ƒ†
†‡‘Ž‹–‹‘†‡„”‹•Ǥ‡‰‡–ƒ–‹‘ƒ††‡„”‹••Š‘—Ž†„‡”‡‘˜‡†ƒ†’”‘’‡”Ž›†‹•’‘•‡†‘ˆ‘ˆˆǦ • ‹ – ‡ Ǥ 
‘ Ž ‡ • ” ‡ • — Ž – ‹  ‰ ˆ ” ‘  – Š ‡ ” ‡  ‘ ˜ ƒ Ž ‘ ˆ „ — ” ‹ ‡ † ‘ „ • – ” — – ‹ ‘  • ǡ ™Š‹
Š ‡š–‡† „‡Ž‘™
’”‘’‘•‡†”‡‘˜ƒŽ„‘––‘•ǡ•Š‘—Ž†„‡”‡’Žƒ
‡†™‹–Š•—‹–ƒ„Ž‡
‘’ƒ
–‡†ˆ‹ŽŽƒ–‡”‹ƒŽǤ›

Project No. 21138-01 Page 12 July 15, 2021
ƒ„ƒ†‘‡† —–‹Ž‹–› Ž‹‡• •Š‘—Ž† „‡
‘’Ž‡–‡Ž› ”‡‘˜‡† ƒ† ”‡’Žƒ
‡† ™‹–Š ’”‘’‡”Ž›

‘’ƒ
–‡†ˆ‹ŽŽǤ


5.1.2 RemovalDepths


 ‘ ” † ‡ ” – ‘ ’ ” ‘ ˜ ‹ † ‡ ƒ ” ‡ Ž ƒ – ‹ ˜ ‡ Ž › —  ‹ ˆ ‘ ”  „ ‡ ƒ ” ‹  ‰  ‘  † ‹ – ‹ ‘  ˆ ‘ ” –Š‡ ’Žƒ‡† „—‹Ž†‹‰
• – ” —
– — ” ‡ • ƒ  † ‹  ’ ” ‘ ˜ ‡  ‡  – • ǡ ™ ‡ ” ‡
‘   ‡  † – Š ‡ • ‹ – ‡  ƒ – ‹ ˜ ‡ • ‘ ‹ Ž • „‡ ”‡‘˜‡† ƒ† ”‡
‘’ƒ
–‡† ƒ

‘”†‹‰ –‘ –Š‡
”‹–‡”‹ƒ ‘—–Ž‹‡† „‡Ž‘™Ǥ ŽŽ —•—‹–ƒ„Ž‡ ‡ƒ”Ǧ•—”ˆƒ
‡ •‘‹Ž•
™‹–Š‹–Š‡‹ˆŽ—‡
‡‘ˆ’”‘’‘•‡†•–”—
–—”ƒŽ‹’”‘˜‡‡–••Š‘—Ž†„‡
‘’Ž‡–‡Ž›”‡‘˜‡†
–‘ •—‹–ƒ„Ž‡ǡ
‘’‡–‡– ƒ–‹˜‡ ‘” ‡š‹•–‹‰ ƒ”–‹ˆ‹
‹ƒŽ ˆ‹ŽŽ ƒ–‡”‹ƒŽ• ’”‹‘” –‘ ’Žƒ
‡‡– ‘ˆ
ƒ††‹–‹‘ƒŽƒ”–‹ˆ‹
‹ƒŽˆ‹ŽŽ–‘†‡•‹‰‰”ƒ†‡•Ǥ ‘”’”‡Ž‹‹ƒ”›’Žƒ‹‰’—”’‘•‡•ǡ–Š‡†‡’–Š‘ˆ ”‡“—‹”‡†”‡‘˜ƒŽ•ƒ†”‡
‘’ƒ
–‹‘ƒ›„‡‡•–‹ƒ–‡†ƒ•‹†‹
ƒ–‡ †„‡Ž‘™Ǥ
–•Š‘—Ž†„‡
 ‘ – ‡ † – Š ƒ – — ’ † ƒ – ‡ † ” ‡
‘   ‡  † ƒ – ‹ ‘  •  ƒ › „ ‡ ” ‡ “ — ‹ ” ‡ † „ ƒ • ‡ † ‘   Š ƒ‰‡• –‘ „—‹Ž†‹‰
Žƒ›‘—–•ƒ†Ȁ‘”‰”ƒ†‹‰’Žƒ‘”„ƒ•‡†‘ˆ‹‡Ž†‘„•‡”˜ƒ–‹‘•‘ ‡ ‰”ƒ†‹‰
‘‡
‡•Ǥ

‰‡‡”ƒŽǡ”‡‘˜ƒŽ„‘––‘••Š‘—Ž†„‡•
ƒ”‹ˆ‹‡†ƒ‹‹—‘ˆ͸‹
Š‡•„‡ˆ‘”‡’Žƒ
‡‡–‘ˆ
•–”—
–—”ƒŽˆ‹ŽŽǤ

—‹Ž†‹‰–”—
–—”‡•ǣ‡”‡
‘‡†–Šƒ–”‡‘˜ƒŽ•‡š–‡†ƒ‹‹—†‡’–Š‘ˆͳͺ‹
Š‡•
„‡Ž‘™–Š‡‡š‹•–‹‰•—”ˆƒ
‡‘”ͳʹ‹
Š‡•„‡Ž‘™’”‘’‘•‡†ˆ‘‘–‹‰•ǡ™Š‹
Š‡˜‡”‹•‰”‡ƒ–‡”Ǥ

‰‡‡”ƒŽǡ–Š‡‡˜‡Ž‘’‡ˆ‘””‡‘˜ƒŽ••Š‘—Ž†‡š–‡†Žƒ–‡”ƒŽŽ›ƒ‹‹—Š‘”‹œ‘–ƒŽ†‹•–ƒ ‡
‘ˆͷˆ‡‡–„‡›‘†–Š‡‡†‰‡•‘ˆ–Š‡’”‘’‘•‡†‹’”‘˜‡‡–•Ǥ—‹Ž†‹‰Ž‹‡•ƒ›„‡†‡ˆ‹‡† ƒ• –Š‡ ’‡”‹‡–‡” ‘ˆ –Š‡ „—‹Ž†‹‰ǡ ’Ž—• ƒ––ƒ
Š‡† ‘” ƒ†Œƒ
‡– ˆ‘—†ƒ–‹‘ •—’’‘”–‡†
ˆ‡ƒ–—”‡•ǡ‹
Ž—†‹‰
ƒ‘’‹‡•ǡ‡Ž‡˜ƒ–‘”•ǡ‘”™ƒŽŽ•Ǥ

‹‘” ‹–‡ –”—
–—”‡•ǣ ‘” ‹‘” •‹–‡ •–”—
–—”‡• •—
Š ƒ• ˆ”‡‡Ǧ•–ƒ†‹‰ ™ƒŽŽ•ǡ ”‡–ƒ‹‹‰
™ƒŽŽ•ǡ –”ƒ•Š ‡
Ž‘•—”‡•ǡ ‡–
Ǥǡ ™‡ ”‡
‘‡† ”‡‘˜ƒŽ• ‡š–‡† ƒ ‹‹— ‘ˆ ͳͺ ‹
Š‡•
„‡Ž‘™ƒ–‹˜‡•‘‹Ž•‘”ͳʹ‹
Š‡•„‡Ž‘™’”‘’‘•‡†ˆ‘‘–‹‰•ǡ™Š‹
Š‡˜‡”‹•‰”‡ƒ–‡”Ǥ
‰‡‡”ƒŽǡ
–Š‡‡˜‡Ž‘’‡ˆ‘””‡‘˜ƒŽƒ†”‡
‘’ƒ
–‹‘•Š‘—Ž†‡š–‡†Žƒ–‡”ƒŽŽ›ƒ‹‹—†‹•–ƒ
‡
‡“—ƒŽ–‘–Š‡†‡’–Š‘ˆ”‡‘˜ƒŽ‘”ƒ‹‹—†‹•–ƒ
‡‘ˆʹˆ‡‡–„ ‡›‘†–Š‡‡†‰‡•‘ˆ–Š‡
’”‘’‘•‡†ˆ‘—†ƒ–‹‘•ǡ™Š‹
Š‡˜‡”‹•Žƒ”‰‡”ǡ™Š‡”‡•’ƒ
‡’‡”‹–•Ǥ

ƒ˜‡‡– ƒ†
ƒ”†•
ƒ’‡ǣ ‡ ”‡
‘‡† ”‡‘˜ƒŽ• •Š‘—Ž† ‡š–‡† ƒ ‹‹— ‘ˆ ͳͺ
‹ 
Š ‡ • „ ‡ Ž ‘ ™ – Š ‡  ƒ – ‹ ˜ ‡ • ‘ ‹ Ž • ‘ ” ͳ ʹ ‹  Š ‡ • „ ‡ Ž ‘ ™ – Š ‡ ’ ” ‘ ’ ‘ • ‡ † •—„‰”ƒ†‡ ȋ‹Ǥ‡Ǥǡ „‡Ž‘™ ’Žƒ‡† ƒ‰‰”‡‰ƒ–‡ „ƒ•‡Ȁƒ•’ŠƒŽ–
‘
”‡–‡ •‡
–‹‘Ȍǡ ™Š‹
Š‡˜‡” ‹•‰ ” ‡ ƒ – ‡ ” Ǥ 
 ‰ ‡  ‡ ” ƒ Ž ǡ – Š ‡ 
‡˜‡Ž‘’‡ˆ‘””‡‘˜ƒŽ••Š‘—Ž†‡š–‡†Žƒ–‡”ƒŽŽ›ƒ‹‹—†‹•–ƒ ‡‘ˆͳǦˆ‘‘–„‡›‘†–Š‡
‡†‰‡•‘ˆ–Š‡’”‘’‘•‡†’ƒ˜‡‡–ƒ†Šƒ”†•
ƒ’‡‹’”‘˜‡‡–•Ǥ

‘
ƒŽ
‘†‹–‹‘• ƒ› „‡ ‡
‘—–‡”‡† †—”‹‰ ‡š
ƒ˜ƒ–‹‘ –Šƒ–
‘—Ž† ”‡“—‹”‡ ƒ††‹–‹‘ƒŽ
‘˜‡”Ǧ‡š
ƒ˜ƒ–‹‘ „‡›‘† –Š‡ ƒ„‘˜‡Ǧ‘–‡† ‹‹— ‹ ‘”†‡” –‘ ‘„–ƒ‹ ƒ ƒ

‡’–ƒ„Ž‡
•—„‰”ƒ†‡Ǥ Š‡ ƒ
–—ƒŽ †‡’–Š• ƒ† Žƒ–‡”ƒŽ ‡š–‡–• ‘ˆ ‰”ƒ†‹‰ ™‹ŽŽ „‡ †‡–‡”‹‡† „› –Š‡ ‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ–„ƒ•‡†‘•—„•—”ˆƒ
‡
‘†‹–‹‘•‡
‘—–‡”‡††—”‹‰‰”ƒ†‹‰Ǥ



5.1.3 Cut/FillTransitions

‘ ”‡†—
‡ –Š‡ ’‘–‡–‹ƒŽ ˆ‘” †‹ˆˆ‡”‡–‹ƒŽ •‡––Ž‡‡–ǡ ™‡ ”‡ ‘‡† •‹–‡ ˆ‘—†ƒ–‹‘• „‡
ˆ‘—†‡† ‡‹–Š‡”
‘’Ž‡–‡Ž› ‘ •—‹–ƒ„Ž‡ ƒ–‹˜‡ ƒ–‡”‹ƒŽ ‘”
‘’Ž‡ –‡Ž› ‘ •—‹–ƒ„Ž‡

‘’ƒ
–‡†ˆ‹ŽŽǤ
ˆ•—‹–ƒ„Ž‡ƒ–‹˜‡ƒ–‡”‹ƒŽ‹•ƒ–‹
‹’ƒ–‡†‘”‡
‘—–‡”‡†‹ƒ›’ƒ”–‘ˆ–Š‡
’”‘’‘•‡† ˆ‘‘–‹‰•ǡ ‡‹–Š‡” –Š‡ ‡–‹”‡ ˆ‘‘–‹‰ ‘ˆ –Š‡ •–”— –—”‡ •Š‘—Ž† „‡ †‡‡’‡‡† –‘ –Š‡
•—‹–ƒ„Ž‡ ƒ–‹˜‡ ƒ–‡”‹ƒŽ ‘” –Š‡ ƒ”‡ƒ ‘ˆ ƒ–‹˜‡ ƒ–‡”‹ƒŽ •Š‘—Ž† „‡ ‘˜‡”Ǧ‡š ƒ˜ƒ–‡† ƒ†

Project No. 21138-01 Page 13 July 15, 2021
”‡’Žƒ
‡† ™‹–Š
‘’ƒ
–‡† ˆ‹ŽŽ –‘ ƒ †‡’–Š ”‡•—Ž–‹‰ ‹ ƒ– Ž‡ƒ•– ʹ ˆ‡‡– ‘ˆ ‘’ƒ
–‡† ˆ‹ŽŽ
„‡‡ƒ–Š –Š‡ „‘––‘ ‘ˆ –Š‡ ’”‘’‘•‡† ˆ‘‘–‹‰•Ǥ Š‡ ‘˜‡”Ǧ‡š ƒ˜ƒ–‹‘ •Š‘—Ž† ƒŽ•‘ ‡š–‡†
Š ‘ ” ‹ œ ‘  – ƒ Ž Ž › ‘ — – • ‹ † ‡ ‘ ˆ – Š ‡ ’ ‡ ” ‹  ‡ – ‡ ” ‘ ˆ – Š ‡ ’ ‘ ” – ‹ ‘  ‘ ˆ – Š ‡ ’ ” ‘’‘•‡† ˆ‘—†ƒ–‹‘ –‘ „‡ —†‡”
—–ǤŠ‡Š‘”‹œ‘–ƒŽ‡š–‡–„‡›‘†–Š‡ˆ‘‘–‹‰••Š‘—Ž†„‡‡“—ƒŽ–‘–Š‡†‡’–Š‘ˆ–Š‡ ‘˜‡”Ǧ‡š
ƒ˜ƒ–‹‘ǤŠ‡”‡–Š‹•
‘†‹–‹‘‹•ƒ–‹
‹’ƒ–‡†ǡ‹–™‘—Ž†„‡’”—†‡––‘’‡”ˆ‘”–Š‡
‘˜‡”Ǧ‡š
ƒ˜ƒ–‹‘™‹–ŠŠ‡ƒ˜›Ǧ†—–›‡“—‹’‡–†—”‹‰•‹–‡”‘—‰Š‰”ƒ†‹‰ǤŠ‡„‘––‘‘ˆ–Š‡ ‘˜‡”Ǧ‡š
ƒ˜ƒ–‹‘•Š‘—Ž† „‡‰”ƒ†‡†–‘ˆŽ‘™–‘™ƒ”†•†‡‡’‡”ˆ‹ŽŽƒ”‡ƒ•ǤŠ‡‘˜‡”Ǧ‡š ƒ˜ƒ–‡†
ƒ–‡”‹ƒŽ•Š‘—Ž†–Š‡„‡”‡’Žƒ
‡†„›
‘’ƒ
–‡†ˆ‹ŽŽƒ–‡”‹ƒŽ–‘†‡•‹‰‰”ƒ†‡Ǥ


5.1.4 RemovalBottomsandSubgradePreparation


 ‰‡‡”ƒŽǡ ”‡‘˜ƒŽ „‘––‘ ƒ”‡ƒ• ƒ† ƒ› ƒ”‡ƒ• –‘ ”‡ ‡‹˜‡
‘’ƒ
–‡† ˆ‹ŽŽ •Š‘—Ž† „‡
•
ƒ”‹ˆ‹‡†–‘ƒ‹‹—†‡’–Š‘ˆ͸‹
Š‡•ǡ„”‘—‰Š––‘ƒ‡ƒ”Ǧ‘’–‹—‘‹•–—”‡
‘†‹–‹‘ǡ
ƒ†”‡
‘’ƒ
–‡†’‡”’”‘Œ‡
–”‡
‘‡†ƒ–‹‘•Ǥ

 ‡  ‘ ˜ ƒ Ž „ ‘ – – ‘  • ƒ  † ƒ ” ‡ ƒ • – ‘ ” ‡ ‡ ‹ ˜ ‡ ˆ ‹ Ž Ž • Š ‘ — Ž † „ ‡ ‘ „ • ‡ ” ˜ ‡ † ƒ † ƒ

‡’–‡† „› –Š‡
‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ– ’”‹‘” –‘ •—„•‡“—‡– ˆ‹ŽŽ ’Žƒ
‡‡–Ǥ ‘‹Ž •—„‰”ƒ†‡ ˆ‘” ’Žƒ‡†
ˆ‘‘–‹‰•ƒ†‹’”‘˜‡‡–•ȋ‡Ǥ‰Ǥǡ•Žƒ„•ǡ‡–
ǤȌ•Š‘—Ž†„‡ˆ‹”ƒ†
‘’‡–‡–Ǥ



5.1.5 TemporaryExcavation

‡’‘”ƒ”› ‡š
ƒ˜ƒ–‹‘• •Š‘—Ž† „‡ ’‡”ˆ‘”‡† ‹ ƒ

‘”†ƒ
‡ ™‹–Š ’” ‘Œ‡
– ’Žƒ•ǡ
•’‡
‹ˆ‹
ƒ–‹‘•ǡ ƒ† ƒŽŽ 

—’ƒ–‹‘ƒŽ ƒˆ‡–› ƒ†
‡ƒŽ–Š †‹‹•–”ƒ–‹‘ ȋ
Ȍ
”‡“—‹”‡‡–•Ǥ š
ƒ˜ƒ–‹‘• •Š‘—Ž† „‡ Žƒ‹† „ƒ
 ‘” •Š‘”‡† ‹ ƒ

‘ ”†ƒ
‡ ™‹–Š 

”‡“—‹”‡‡–•„‡ˆ‘”‡’‡”•‘‡Ž‘”‡“—‹’‡–ƒ”‡ƒŽŽ‘™‡†–‘‡–‡”Ǥš ƒ˜ƒ–‹‘••Š‘—Ž†„‡
• Ž ‘ ’ ‡ † „ ƒ
 – ‘ ͳ ǣ ͳ ‘ ” ˆ Ž ƒ – – ‡ ” ‘ ” „ ‡ ’ ” ‘ ’ ‡ ” Ž › • Š ‘ ” ‡ † Ǥ  ‘  ‡ • ƒ  † ›• ‘ ‹ Ž • ƒ ” ‡ ’ ” ‡ • ‡  – ƒ  †  •Š‘—Ž†„‡
‘•‹†‡”‡†•—•
‡’–‹„Ž‡–‘
ƒ˜‹‰Ǥ‘‹Ž
‘†‹–‹‘••Š‘—Ž†„‡”‡‰—Žƒ”Ž›‡˜ƒŽ—ƒ–‡†
†—”‹‰
‘•–”—
–‹‘ –‘ ˜‡”‹ˆ›
‘†‹–‹‘• ƒ”‡ ƒ• ƒ–‹
‹’ƒ–‡†Ǥ Š ‡
‘–”ƒ
–‘” •ŠƒŽŽ „‡
”‡•’‘•‹„Ž‡ ˆ‘” ’”‘˜‹†‹‰ –Š‡ Dz
‘’‡–‡– ’‡”•‘dz ”‡“—‹”‡† „› 
 •–ƒ†ƒ”†• –‘
‡˜ƒŽ—ƒ–‡ •‘‹Ž
‘†‹–‹‘•Ǥ Ž‘•‡
‘‘”†‹ƒ–‹‘ ™‹–Š –Š‡ ‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ– •Š‘—Ž† „‡
ƒ‹–ƒ‹‡†–‘ˆƒ
‹Ž‹–ƒ–‡
‘•–”—
–‹‘™Š‹Ž‡’”‘˜‹†‹‰•ƒˆ‡‡š
ƒ˜ƒ–‹‘•Ǥš
ƒ˜ƒ–‹‘•ƒˆ‡–›
‹•–Š‡•‘Ž‡”‡•’‘•‹„‹Ž‹–›‘ˆ–Š‡
‘–”ƒ
–‘”Ǥ

‡Š‹
—Žƒ”–”ƒˆˆ‹
ǡ•–‘
’‹Ž‡•ǡƒ†‡“—‹’‡–•–‘”ƒ‰‡•Š‘—Ž†„‡•‡–„ƒ
ˆ”‘–Š‡’‡”‹‡–‡”
‘ˆ‡š
ƒ˜ƒ–‹‘•ƒ†‹•–ƒ
‡‡“—‹˜ƒŽ‡––‘ƒͳǣͳ’”‘Œ‡
–‹‘ˆ”‘–Š‡„‘––‘‘ˆ–Š‡‡š
ƒ˜ƒ–‹‘Ǥ

‡ ƒ ‡š
ƒ˜ƒ–‹‘ Šƒ• „‡‡ ‹‹–‹ƒ–‡†ǡ ‹– •Š‘—Ž† „‡ „ƒ
ˆ‹ŽŽ‡† ƒ • • ‘ ‘  ƒ • ’ ” ƒ
– ‹
ƒ Ž Ǥ 
”‘Ž‘‰‡†‡š’‘•—”‡‘ˆ–‡’‘”ƒ”›‡š
ƒ˜ƒ–‹‘•ƒ›”‡•—Ž–‹•‘‡ Ž‘
ƒŽ‹œ‡†‹•–ƒ„‹Ž‹–›Ǥ
š
ƒ˜ƒ–‹‘••Š‘—Ž†„‡’Žƒ‡†•‘–Šƒ––Š‡›ƒ”‡‘–‹‹–‹ƒ–‡†™‹ –Š‘—–•—ˆˆ‹ ‹‡––‹‡–‘
•Š‘”‡Ȁˆ‹ŽŽ–Š‡’”‹‘”–‘™‡‡‡†•ǡŠ‘Ž‹†ƒ›•ǡ‘”ˆ‘”‡
ƒ•–‡†”ƒ‹Ǥ


–•Š‘—Ž†„‡‘–‡†–Šƒ–ƒ›‡š
ƒ˜ƒ–‹‘–Šƒ–‡š–‡†•„‡Ž‘™ƒͳǣͳ ȋŠ‘”‹œ‘–ƒŽ–‘˜‡”–‹
ƒŽȌ
’ ” ‘ Œ ‡
– ‹ ‘  ‘ ˆ ƒ  ‡ š ‹ • – ‹  ‰ ˆ ‘ —  † ƒ – ‹ ‘  ™ ‹ Ž Ž ” ‡  ‘ ˜ ‡ ‡ š ‹ • – ‹  ‰ • — ’ ’ ‘”– ‘ˆ –Š‡ •–”— –—”‡
ˆ‘—†ƒ–‹‘Ǥ
ˆ”‡“—‡•–‡†ǡ–‡’‘”ƒ”›•Š‘”‹‰’ƒ”ƒ‡–‡”•™‹ŽŽ„‡’”‘˜‹†‡†Ǥ 


5.1.6 MaterialforFill

”‘ƒ‰‡‘–‡
Š‹
ƒŽ’‡”•’‡
–‹˜‡ǡ–Š‡‘•‹–‡•‘‹Ž•ƒ”‡‰‡‡”ƒŽŽ›
‘•‹†‡”‡†•—‹–ƒ„Ž‡ˆ‘”—•‡
ƒ•‰‡‡”ƒŽ
‘’ƒ
–‡†ˆ‹ŽŽȋ‹Ǥ‡Ǥǡ‘Ǧ”‡–ƒ‹‹‰™ƒŽŽ„ƒ
ˆ‹ŽŽȌǡ’”‘˜‹†‡†–Š‡›ƒ”‡•
”‡‡‡†‘ˆ

Project No. 21138-01 Page 14 July 15, 2021
‘”‰ƒ‹
 ƒ–‡”‹ƒŽ•ǡ
‘•–”—
–‹‘ †‡„”‹• ƒ† ƒ› ‘˜‡”•‹œ‡† ƒ–‡”‹ƒŽ ȋͺ ‹
Š‡• ‹ ‰”‡ƒ–‡•–
†‹‡•‹‘ȌǤ ‘‹•–—”‡
‘†‹–‹‘‹‰ ‘ˆ •‹–‡ •‘‹Ž• •Š‘—Ž† „‡ ƒ–‹
‹’ƒ–‡† ƒ• ‘—–Ž‹‡† ‹ –Š‡
•‡
–‹‘„‡Ž‘™Ǥ

” ‘  ƒ ‰ ‡ ‘ – ‡
Š  ‹
ƒ Ž ˜ ‹ ‡ ™ ’ ‘ ‹  – ǡ ƒ  › ” ‡ “ — ‹ ” ‡ † ‹  ’ ‘ ” – • ‘ ‹ Ž • ˆ ‘ ” ‰ ‡‡”ƒŽ ˆ‹ŽŽ ȋ‹Ǥ‡Ǥǡ ‘Ǧ ”‡–ƒ‹‹‰ ™ƒŽŽ „ƒ
ˆ‹ŽŽȌ •Š‘—Ž†
‘•‹•– ‘ˆ
Ž‡ƒǡ ‰”ƒ—Žƒ” •‘‹Ž• ‘ˆ Dz‡†‹—dz ‡š’ƒ•‹‘
’‘–‡–‹ƒŽȋ
‘ˆͻͲ‘”Ž‡••’‡”ͶͺʹͻȌǡƒ†ˆ”‡‡‘ˆ‘”‰ƒ‹
ƒ–‡”‹ƒŽ•ǡ
‘•–”—
–‹‘
† ‡ „ ” ‹ • ƒ  † ƒ  ›  ƒ – ‡ ” ‹ ƒ Ž ‰ ” ‡ ƒ – ‡ ” – Š ƒ  ͵ ‹  Š ‡ • ‹   ƒ š ‹  —  † ‹  ‡  •‹‘Ǥ
’‘”– ˆ‘”
”‡–ƒ‹‹‰ ™ƒŽŽ „ƒ
ˆ‹ŽŽ •Š‘—Ž† ‡‡– –Š‡
”‹–‡”‹ƒ ‘—–Ž‹‡† ‹ –Š‡ ˆ‘ŽŽ‘™‹‰ ’ƒ”ƒ‰”ƒ’ŠǤ
‘—”
‡•ƒ’Ž‡••Š‘—Ž†„‡’”‘˜‹†‡†–‘–Š‡‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ–ˆ‘”Žƒ„‘”ƒ–‘”›–‡•–‹‰ƒ
‹‹—‘ˆˆ‘—”™‘”‹‰†ƒ›•’”‹‘”–‘ƒ›’Žƒ‡†‹’‘”–ƒ–‹‘Ǥ 
‡–ƒ‹‹‰™ƒŽŽ„ƒ
ˆ‹ŽŽ•Š‘—Ž†
‘•‹•–‘ˆ•ƒ†›•‘‹Ž•™‹–Šƒƒ š‹—‘ˆ͵ͷ’‡”
‡–ˆ‹‡•
ȋ’ƒ••‹‰–Š‡‘ǤʹͲͲ•‹‡˜‡Ȍ’‡”‡”‹
ƒ‘
‹‡–›ˆ‘”‡•–‹‰ƒ †ƒ–‡”‹ƒŽ•ȋȌ‡•–
‡–Š‘†ͳͳͶͲȋ‘”͸ͻͳ͵ȀͶʹʹȌƒ†ƒ‡”›‘™‡š’ƒ•‹‘’‘–‡–‹ƒŽȋ ‘ˆʹͲ‘”
Ž‡•• ’‡”  ͶͺʹͻȌǤ ‘‹Ž• •Š‘—Ž† ƒŽ•‘ „‡ •
”‡‡‡† ‘ˆ ‘”‰ƒ‹
 ƒ–‡”‹ƒŽ•ǡ
‘•–”—
–‹‘
†‡„”‹•ƒ†ƒ›ƒ–‡”‹ƒŽ‰”‡ƒ–‡”–Šƒ͵‹
Š‡•‹ƒš‹—†‹‡•‹‘ǤŠ‡•‹–‡
‘–ƒ‹•
•‘‹Ž• –Šƒ– ƒ”‡ ‘– •—‹–ƒ„Ž‡ ˆ‘” ”‡–ƒ‹‹‰ ™ƒŽŽ „ƒ ˆ‹ŽŽ †—‡ –‘ –Š‡‹” ˆ‹‡•
‘–‡– ƒ†
‡š’ƒ•‹‘ ’‘–‡–‹ƒŽǡ –Š‡”‡ˆ‘”‡ ‹ ’ ‘ ” – ™ ‹ Ž Ž „ ‡ ” ‡ “ — ‹ ” ‡ † „ › – Š ‡  ‘–”ƒ
–‘” ˆ‘” ‘„–ƒ‹‹‰
•—‹–ƒ„Ž‡„ƒ
ˆ‹ŽŽ•‘‹Žˆ‘”’Žƒ‡†•‹–‡”‡–ƒ‹‹‰™ƒŽŽ•Ǥ

‰‰”‡‰ƒ–‡„ƒ•‡ȋ
”—•Š‡†ƒ‰‰”‡‰ƒ–‡„ƒ•‡‘”
”—•Š‡†‹•
‡ŽŽƒ‡‘—•„ƒ•‡Ȍ•Š‘—Ž†
‘ˆ‘”
–‘ –Š‡ ”‡“—‹”‡‡–• ‘ˆ ‡
–‹‘ ʹͲͲǦʹ ‘ˆ –Š‡ –ƒ†ƒ”† ’‡
‹ˆ‹
ƒ–‹ ‘  • ˆ ‘ ”  — „ Ž ‹
 ‘ ”  • 
‘•–”—
–‹‘ ȋDz
”‡‡„‘‘dzȌ ˆ‘” —–”‡ƒ–‡† „ƒ•‡ ƒ–‡”‹ƒŽ• ȋ‡š
‡’– ’”‘
‡••‡†
‹•
‡ŽŽƒ‡‘—•„ƒ•‡Ȍ‘”ƒŽ–”ƒ•Žƒ••ʹƒ‰‰”‡‰ƒ–‡„ƒ•‡Ǥ

Š‡’Žƒ
‡‡–‘ˆ†‡‘Ž‹–‹‘ƒ–‡”‹ƒŽ•‹
‘’ƒ
–‡†ˆ‹ŽŽ‹•ƒ

‡’–ƒ„Ž‡ˆ”‘ƒ‰‡‘–‡
Š‹
ƒŽ
˜‹‡™’‘‹– ’”‘˜‹†‡† –Š‡ †‡‘Ž‹–‹‘ ƒ–‡”‹ƒŽ ‹• „”‘‡ —’ ‹–‘ ’‹‡ ‡• ‘– Žƒ”‰‡” –Šƒ
–›’‹
ƒŽŽ› —•‡† ˆ‘” ƒ‰‰”‡‰ƒ–‡ „ƒ•‡ ȋƒ’’”‘š‹ƒ–‡Ž› ʹ ‹ Š‡• ‹ ƒš‹— †‹‡•‹‘Ȍ ƒ†
™‡ŽŽ„Ž‡†‡†‹–‘ˆ‹ŽŽ•‘‹Ž•™‹–Š‡••‡–‹ƒŽŽ›‘”‡•—Ž–‹‰˜‘‹†•Ǥ‡‘Ž‹–‹‘ƒ–‡”‹ƒŽ’Žƒ ‡†
‹ˆ‹ŽŽ•—•–„‡ˆ”‡‡‘ˆ
‘•–”—
–‹‘†‡„”‹•ȋ™‘‘†ǡ‘”‰ƒ‹
•ǡ‡ –
ǤȌƒ†”‡‹ˆ‘”
‹‰•–‡‡ŽǤ
ˆ
ƒ•’ŠƒŽ–
‘
”‡–‡ˆ”ƒ‰‡–•™‹ŽŽ„‡ ‹
‘”’‘”ƒ–‡†‹–‘–Š‡†‡‘Ž‹–‹‘ƒ–‡”‹ƒŽ•ǡƒ’’”‘˜ƒŽ
ˆ”‘ ƒ ‡˜‹”‘‡–ƒŽ ˜‹‡™’‘‹– ƒ› „‡ ”‡“—‹”‡† ƒ† ‹• ‘– –Š‡ ’—”˜‹‡™ ‘ˆ –Š‡ ‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ–Ǥ ”‘ ‘—” ’”‡˜‹‘—• ‡š’‡”‹‡
‡ǡ ™‡ ”‡
‘‡† –Šƒ– ƒ•’ŠƒŽ–

‘
”‡–‡ ˆ”ƒ‰‡–• „‡ Ž‹‹–‡† –‘ ˆ‹ŽŽ ƒ”‡ƒ• ™‹–Š‹ ’Žƒ‡† •–”‡‡ – ƒ ” ‡ ƒ • ȋ ‹ Ǥ ‡ Ǥ ǡ  ‘ – ™ ‹ – Š ‹   „—‹Ž†‹‰’ƒ†ƒ”‡ƒ•ȌǤ



5.1.7 FillPlacementandCompaction

 ƒ – ‡ ” ‹ ƒ Ž – ‘ „ ‡ ’ Ž ƒ
‡ † ƒ • ˆ ‹ Ž Ž • Š ‘ — Ž † „ ‡ „ ” ‘ — ‰ Š – – ‘  ‡ ƒ ” Ǧ ‘ ’ – ‹  —  ‘‹•–—”‡ ‘–‡–
ȋ‰‡‡”ƒŽŽ› ƒ– ƒ„‘—– ʹ ’‡”
‡– ƒ„‘˜‡ ‘’–‹— ‘‹•–—”‡
‘–‡–Ȍ ƒ† ”‡
‘’ƒ
–‡† –‘ ƒ–
Ž‡ƒ•– ͻͲ ’‡”
‡– ”‡Žƒ–‹˜‡
‘’ƒ
–‹‘ ȋ’‡”  ͳͷͷ͹ȌǤ ‘‹•–—”‡
‘†‹–‹‘‹‰ ‘ˆ •‹–‡
•‘‹Ž• •Š‘—Ž† „‡ ƒ–‹
‹’ƒ–‡† ‹ ‘”†‡” –‘ ƒ
Š‹‡˜‡ –Š‡ ”‡“—‹”‡† †‡‰”‡‡ ‘ˆ
‘’ƒ
–‹‘Ǥ Š‡
‘’–‹—Ž‹ˆ––Š‹
‡••–‘’”‘†—
‡ƒ—‹ˆ‘”Ž›
‘’ƒ
–‡†ˆ‹ŽŽ™‹ŽŽ†‡’‡†‘–Š‡–›’‡ƒ†
• ‹ œ ‡ ‘ ˆ 
‘  ’ ƒ
– ‹ ‘  ‡ “ — ‹ ’  ‡  – — • ‡ † Ǥ 
 ‰ ‡  ‡ ” ƒ Ž ǡ ˆ ‹ Ž Ž • Š ‘ — Ž † „ ‡ ’ Ž ƒ
‡ † ‹  —  ‹ ˆ ‘ ”  Ž ‹ ˆ – • ‘ – 
‡š
‡‡†‹‰ͺ‹
Š‡•‹
‘’ƒ
–‡†–Š‹
‡••Ǥƒ
ŠŽ‹ˆ–•Š‘—Ž†„‡–Š‘”‘—‰ŠŽ›
‘’ƒ
–‡†ƒ†
ƒ

‡’–‡†’”‹‘”–‘•—„•‡“—‡–Ž‹ˆ–•Ǥ
‡‡”ƒŽŽ›ǡ’Žƒ
‡‡–ƒ†
‘’ƒ
–‹‘‘ˆˆ‹ŽŽ•Š‘—Ž†„‡
’‡”ˆ‘”‡†‹ƒ

‘”†ƒ
‡™‹–ŠŽ‘
ƒŽ‰”ƒ†‹‰‘”†‹ƒ
‡•ƒ†™‹–Š‘„•‡”˜ƒ–‹‘ƒ†–‡•–‹‰
„› –Š‡ ‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ–Ǥ ˜‡”•‹œ‡† ƒ–‡”‹ƒŽ ƒ• ’”‡˜‹‘—•Ž› †‡ˆ‹‡† •Š‘—Ž† „‡ 
Project No. 21138-01 Page 15 July 15, 2021
”‡‘˜‡†ˆ”‘•‹–‡ˆ‹ŽŽ•Ǥ

‹ŽŽ ’Žƒ
‡† ‘ ƒ› •Ž‘’‡• ‰”‡ƒ–‡” –Šƒ ͷǣͳ ȋŠ‘”‹œ‘–ƒŽ –‘ ˜‡”–‹ ƒ Ž Ȍ • Š ‘ — Ž † „ ‡ ’ ” ‘ ’ ‡ ” Ž › 
‡›‡†ƒ†„‡
Š‡†‹–‘ˆ‹”ƒ†
‘’‡–‡–•‘‹Ž•ƒ•‹–‹•’Žƒ
‡†‹Ž‹ˆ–•Ǥ

‰‰”‡‰ƒ–‡ „ƒ•‡ ƒ–‡”‹ƒŽ •Š‘—Ž† „‡
‘’ƒ
–‡† –‘ ƒ ‹‹— ‘ˆ ͻͷ ’‡”
‡– ”‡Žƒ–‹˜‡

‘’ƒ
–‹‘ ƒ– ‘” •Ž‹‰Š–Ž› ƒ„‘˜‡Ǧ‘’–‹— ‘‹•–—”‡
‘–‡– ’‡”  ͳͷͷ͹Ǥ —„‰”ƒ†‡
„‡Ž‘™ƒ‰‰”‡‰ƒ–‡„ƒ•‡•Š‘—Ž†„‡
‘’ƒ
–‡†–‘ƒ–Ž‡ƒ•–ͻͲ’‡”
‡–”‡Žƒ–‹˜‡
‘’ƒ
–‹‘’‡”
ͳͷͷ͹‡ƒ”‘’–‹—‘‹•–—”‡
‘–‡–ȋ‰‡‡”ƒŽŽ›™‹–Š‹‘’–‹ —ƒ†ʹ’‡”
‡–
ƒ„‘˜‡‘’–‹—‘‹•–—”‡
‘–‡–ȌǤ


ˆ ‰ƒ’Ǧ‰”ƒ†‡† ΧǦ‹
Š ”‘
 ‹• —•‡† ˆ‘” „ƒ
ˆ‹ŽŽ ȋƒ”‘—† •–‘” †”ƒ‹ •–‘”ƒ‰‡
Šƒ„‡”•ǡ
”‡–ƒ‹‹‰ ™ƒŽŽ „ƒ
ˆ‹ŽŽǡ •–‘” †”ƒ‹’‹’‡ǡ ‡–
ǤȌ ‹– ™‹ŽŽ ”‡“—‹”‡
‘  ’ ƒ
– ‹ ‘  Ǥ  ‘
 • Š ƒ Ž Ž „ ‡ 
’Žƒ
‡† ‹ –Š‹ Ž‹ˆ–• ȋ–›’‹
ƒŽŽ› ‘– ‡š
‡‡†‹‰ ͸ ‹
Š‡•Ȍ ƒ† ‡
Šƒ‹
ƒŽŽ›
‘’ƒ
–‡† ™‹–Š
‘„•‡”˜ƒ–‹‘„›–Š‡‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ–Ǥ‘
„ƒ
ˆ‹ŽŽ•ŠƒŽŽ‡‡––Š‡”‡“—‹”‡‡–•‘ˆ
ʹ͵ʹͳǤ
ƒ’Ǧ‰”ƒ†‡†”‘
‹•”‡“—‹”‡†–‘„‡™”ƒ’’‡†‹ˆ‹Ž–‡”ˆƒ„”‹
ȋ‹”ƒˆ‹ͳͶͲ‘”
ƒ’’”‘˜‡†ƒŽ–‡”ƒ–‹˜‡Ȍ–‘’”‡˜‡––Š‡‹‰”ƒ–‹‘‘ˆˆ‹‡•‹–‘–Š‡”‘ „ƒ
ˆ‹ŽŽǤ


 5.1.8 TrenchBackfillandCompaction


ˆ–”‡
Š‡•ƒ”‡•ŠƒŽŽ‘™‘”–Š‡—•‡‘ˆ
‘˜‡–‹‘ƒŽ‡“—‹’‡–ƒ›”‡•—Ž–‹†ƒƒ‰‡–‘–Š‡
—–‹Ž‹–‹‡•ǡ •ƒ† Šƒ˜‹‰ ƒ •ƒ† ‡“—‹˜ƒŽ‡– ȋȌ ‘ˆ ͵Ͳ ‘” ‰”‡ƒ–‡”ȋ’‡” ƒŽ–”ƒ• ‡•– ‡–Š‘† ȏȐʹͳ͹Ȍƒ›„‡—•‡†–‘„‡†ƒ†•Šƒ†‡–Š‡’‹’‡•™‹–Š‹–Š‡„‡††‹‰œ‘‡Ǥ•‹–‡•‘‹Ž• ƒ”‡ ‘– ƒ–‹
‹’ƒ–‡† –‘ ‡‡– –Š‹•
”‹–‡”‹‘Ǥ Š‡ ‘•‹–‡ •‘‹Ž• ƒ› ‰‡‡”ƒŽŽ› „‡ •—‹–ƒ„Ž‡ ƒ• •—„•‡“—‡– –”‡
Š „ƒ
ˆ‹ŽŽ ȋœ‘‡ †‡ˆ‹‡† ƒ• ͳʹ ‹
Š‡• ƒ„‘˜‡ –Š‡’ ‹ ’ ‡ – ‘ • — „ ‰ ” ƒ † ‡ Ȍ ǡ 
’”‘˜‹†‡†–Š‡•‘‹Ž•ƒ”‡•
”‡‡‡†‘ˆ”‘
•ǡ
‘•–”—
–‹‘†‡„”‹•ǡ‘–Š‡”ƒ–‡”‹ƒŽ‰”‡ƒ–‡”–Šƒ
͵‹
Š‡•‹†‹ƒ‡–‡”ƒ†•‹‰‹ˆ‹
ƒ–‘”‰ƒ‹
ƒ––‡”Ǥ”‡
Š„ƒ
ˆ‹ŽŽ•Š‘—Ž†„‡
‘’ƒ
–‡†
‹—‹ˆ‘”Ž‹ˆ–•ȋƒ•‘—–Ž‹‡†ƒ„‘˜‡‹‡
–‹‘Dzƒ–‡”‹ƒŽˆ‘” ‹ŽŽdzȌ„›‡
Šƒ‹
ƒŽ‡ƒ•–‘ƒ–
Ž‡ƒ•–ͻͲ’‡”
‡–”‡Žƒ–‹˜‡
‘’ƒ
–‹‘ȋ’‡”ͳͷͷ͹ȌǤ

‡–ƒ‹‹‰™ƒŽŽ„ƒ
ˆ‹ŽŽ•Š‘—Ž†
‘•‹•–‘ˆ‰”ƒ—Žƒ”ǡ•ƒ†›•‘‹Ž•ƒ•‘—–Ž‹‡†‹‡
–‹‘ͷǤͳǤ͸Ǥ
Š‡Ž‹‹–•‘ˆ•‡Ž‡
–•ƒ†›„ƒ
ˆ‹ŽŽ•Š‘—Ž†‡š–‡†ƒ–‹‹—Φ–Š‡Š‡‹‰Š–‘ˆ–Š‡”‡–ƒ‹‹‰ ™ƒŽŽ ‘” –Š‡ ™‹†–Š ‘ˆ –Š‡ Š‡‡Ž ȋ‹ˆ ƒ’’Ž‹
ƒ„Ž‡Ȍǡ ™Š‹
Š‡˜‡” ‹• ‰”‡ƒ–‡” ȋ‡ˆ‡” –‘ ‹‰—”‡ ͵ȌǤ
‡–ƒ‹‹‰ ™ƒŽŽ „ƒ
ˆ‹ŽŽ •‘‹Ž• •Š‘—Ž† „‡
‘’ƒ
–‡† ‹ ”‡Žƒ–‹˜‡Ž›—  ‹ ˆ ‘ ”  – Š ‹  Ž ‹ ˆ – • – ‘ ƒ  ‹‹— ‘ˆ ͻͲ ’‡”
‡– ”‡Žƒ–‹˜‡
‘’ƒ
–‹‘ ȋ’‡”  ͳͷͷ͹ȌǤ
‡––‹‰ ‘” ˆŽ‘‘†‹‰ ‘ˆ
”‡–ƒ‹‹‰™ƒŽŽ„ƒ
ˆ‹ŽŽƒ–‡”‹ƒŽ••Š‘—Ž†‘–„‡’‡”‹––‡†Ǥ

 
„ƒ
ˆ‹ŽŽƒ”‡ƒ•™Š‡”‡‡
Šƒ‹
ƒŽ
‘’ƒ
–‹‘‘ˆ•‘‹Ž„ƒ
ˆ‹Ž Ž‹•‹’”ƒ
–‹
ƒŽ†—‡–‘•’ƒ
‡

‘•–”ƒ‹–•ǡ–›’‹
ƒŽŽ›•ƒ†Ǧ
‡‡–•Ž—””›ƒ›„‡•—„•–‹–—–‡†ˆ‘”
‘’ƒ
–‡†„ƒ
ˆ‹ŽŽǤŠ‡
• Ž — ” ” › • Š ‘ — Ž † 
‘  – ƒ ‹  ƒ „ ‘ — – ‘  ‡ • ƒ
 ‘ ˆ 
‡  ‡  – ’ ‡ ” 
— „ ‹
› ƒ ” † Ǥ Š‡ •‡–ǡ •—
Š ƒ ‹š
–›’‹
ƒŽŽ› Šƒ• –Š‡
‘•‹•–‡
› ‘ˆ
‘’ƒ
–‡† •‘‹ŽǤ ƒ†
‡‡– •Ž—””› ’Žƒ
‡† ‡ƒ” –Š‡
•—”ˆƒ
‡ ™‹–Š‹ Žƒ†•
ƒ’‡ ƒ”‡ƒ• •Š‘—Ž† „‡ ‡˜ƒŽ—ƒ–‡† ˆ‘” ’‘–‡–‹ƒŽ ‹’ƒ –• ‘ ’Žƒ‡†
‹’”‘˜‡‡–•Ǥ

  ”‡’”‡•‡–ƒ–‹˜‡ˆ”‘

‡‘–‡
Š‹
ƒŽ•Š‘—Ž†‘„•‡”˜‡ǡ’”‘„‡ǡ ƒ†–‡•––Š‡„ƒ
ˆ‹ŽŽ–‘
˜‡”‹ˆ›
‘’Ž‹ƒ
‡™‹–Š–Š‡’”‘Œ‡
–”‡
‘‡†ƒ–‹‘•Ǥ





Project No. 21138-01 Page 16 July 15, 2021

5.2 SlopeStability

‹–‡•Ž‘’‡•†‡•‹‰‡†™‹–Šƒ•Ž‘’‡”ƒ–‹‘‘ˆʹǣͳȋŠ‘”‹œ‘–ƒŽ–‘˜ ‡”–‹ ƒŽȌǡƒ”‡ƒ–‹
‹’ƒ–‡†–‘„‡„‘–Š
‰”‘••Ž› ƒ† •—”ˆ‹
‹ƒŽŽ› •–ƒ„Ž‡ ƒ• „—‹Ž–Ǥ Ž‘’‡• •Š‘—Ž† „‡ ’”‘–‡
–‡† ™‹–Š ’”‘’‡”Ž› †‡•‹‰‡†
˜‡‰‡–ƒ–‹˜‡
‘˜‡”•Ǥ
ˆ–”‡‡•ƒ”‡’Žƒ‡†‘
—–•Ž‘’‡•ǡ–”‡‡™‡ŽŽ••Š‘—Ž†„‡
‘•‹†‡”‡†Ǥ


 5.2.1 SlopeMaintenanceGuidelines


– ‹ • ” ‡
‘   ‡  † ‡ † – Š ƒ – ƒ  › ‰ ” ƒ † ‡ † • Ž ‘ ’ ‡ • „ ‡ ’ Ž ƒ  – ‡ † ™ ‹ – Š ‰ ” ‘ —  † ‘˜‡” ˜‡‰‡–ƒ–‹‘ ƒ•
• ‘ ‘  ƒ • ’ ” ƒ
– ‹
ƒ Ž – ‘ ’ ” ‘ – ‡
– ƒ ‰ ƒ ‹  • – ‡ ” ‘ • ‹ ‘  „ › ” ‡ † —
‹  ‰ ” —  ‘ ˆ ˆ ˜‡Ž‘
‹–›Ǥ ‡‡’Ǧ”‘‘–‡†
˜‡‰‡–ƒ–‹‘ •Š‘—Ž† ƒŽ•‘ „‡ ‡•–ƒ„Ž‹•Š‡† –‘ ’”‘–‡
– ƒ‰ƒ‹•– •—”ˆ‹
‹ƒŽ •Ž—’‹‰Ǥ
””‹‰ƒ–‹‘
Ž‡˜‡Ž••Š‘—Ž†„‡‡’––‘–Š‡‹‹—Ž‡˜‡Ž‡
‡••ƒ”›–‘‡•–ƒ„Ž‹•ŠƒŠ‡ƒŽ–Š›’Žƒ–‰”‘™–ŠǤ
Ž‘’‡•—•–‘–„‡‘˜‡”™ƒ–‡”‡†Ǥ
ˆƒ—–‘ƒ–‹
•’”‹Ž‡”•ƒ”‡—•‡†ǡ–Š‡›—•–„‡ƒ†Œ—•–‡†
†—”‹‰ ’‡”‹‘†• ‘ˆ ”ƒ‹ˆƒŽŽǤ ‘–‹—‘—• ‡”‘•‹‘
‘–”‘Žǡ ”‘†‡–
‘–”‘Žǡ ƒ† ƒ‹–‡ƒ
‡
ƒ”‡ ‡••‡–‹ƒŽ –‘ –Š‡ Ž‘‰Ǧ–‡” •–ƒ„‹Ž‹–› ‘ˆ ƒŽŽ •Ž‘’‡•Ǥ  ’”‘‰”ƒ ˆ‘” –Š‡ ‡Ž‹‹ƒ–‹‘ ‘ˆ „—””‘™‹‰ ƒ‹ƒŽ• ‹ •Ž‘’‡ ƒ”‡ƒ• —•– „‡ ‡•–ƒ„Ž‹•Š‡† –‘ ’”‘–‡ – • Ž ‘ ’ ‡ • – ƒ „ ‹ Ž ‹ – › „ › 
”‡†—
‹‰ –Š‡ ’‘–‡–‹ƒŽ ˆ‘” •—”ˆƒ
‡ ™ƒ–‡” –‘ ’‡‡–”ƒ–‡ ‹–‘ –Š‡ •Ž‘’‡ ˆƒ
‡Ǥ
„•‡”˜ƒ–‹‘Ȁ–‡•–‹‰ƒ†ƒ

‡’–ƒ
‡„›–Š‡‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ–†—”‹‰–”‡
Š„ƒ
ˆ‹ŽŽ
ƒ”‡”‡
‘‡†‡†ǤǦ†‹–
Š‡••Š‘—Ž†„‡‹•’‡
–‡†ƒ†
Ž‡ƒ”‡†‘ˆŽ‘‘•‡•‘‹Žƒ†Ȁ‘”†‡„”‹•
‘ƒ”‘—–‹‡„ƒ•‹•ǡ‡•’‡
‹ƒŽŽ›’”‹‘”–‘ƒ††—”‹‰–Š‡”ƒ‹›•‡ƒ•‘Ǥ



5.3 PreliminaryFoundationDesignParameters


‹˜‡–Šƒ––Š‡‡š’ƒ•‹‘‹†‡š‡š
‡‡†•ʹͲǡ–Š‡ˆ‘—†ƒ–‹‘•›•–‡••ŠƒŽŽ„‡†‡•‹‰‡†ˆ‘”‡ˆˆ‡ –•
‘ˆ‡š’ƒ•‹˜‡•‘‹ŽǤ”‡Ž‹‹ƒ”›
‘˜‡–‹‘ƒŽƒ†’‘•–Ǧ–‡•‹‘‡†ˆ‘—†ƒ–‹‘”‡
‘‡†ƒ–‹‘•ƒ”‡
’”‘˜‹†‡† ‹ –Š‡ ˆ‘ŽŽ‘™‹‰ •‡
–‹‘•Ǥ ‡
‘‡†‡† •‘‹Ž „‡ƒ”‹‰ ƒ† ‡•–‹ƒ–‡† •–ƒ–‹
 •‡––Ž‡‡–
ƒ”‡ ’”‘˜‹†‡† ‹ ‡
–‹‘ ͷǤ͵ǤͷǤ Ž‡ƒ•‡ ‘–‡ –Šƒ– –Š‡ ˆ‘ŽŽ‘™‹‰ ˆ‘—†ƒ–‹‘ ”‡ ‘‡†ƒ–‹‘• ƒ”‡
’”‡Ž‹‹ƒ”›ƒ†—•–„‡
‘ˆ‹”‡†„›

‡‘–‡
Š‹
ƒŽƒ––Š‡
‘’Ž‡–‹‘‘ˆ ’”‘Œ‡
–’Žƒ•ȋ‹Ǥ‡Ǥǡ
ˆ‘—†ƒ–‹‘ǡ‰”ƒ†‹‰ƒ†•‹–‡Žƒ›‘—–’Žƒ•Ȍƒ•™‡ŽŽƒ•
‘’Ž‡–‹‘‘ˆ‡ƒ”–Š™‘”Ǥ



5.3.1 PreliminaryConventionalFoundationDesignParameters 
 ‘  ˜ ‡  – ‹ ‘  ƒ Ž ˆ ‘ —  † ƒ – ‹ ‘  •  ƒ › „ ‡ † ‡ • ‹ ‰  ‡ † ‹  ƒ

‘ ” † ƒ 
‡ ™ ‹ – Š  ‹ ”‡ ‡‹ˆ‘”
‡‡–

•–‹–—–‡ȋ
Ȍ’”‘
‡†—”‡ˆ‘”•Žƒ„Ǧ‘Ǧ‰”‘—†ˆ‘—†ƒ–‹‘•’‡”‡
–‹‘ͳͺͲͺ‘ˆ–Š‡ʹͲͳͻ
–‘”‡•‹•–‡š’ƒ•‹˜‡•‘‹Ž•ǤŠ‡ˆ‘ŽŽ‘™‹‰’”‡Ž‹‹ƒ”›•‘‹Ž’ƒ”ƒ‡–‡”•ƒ›„‡—•‡†ǣ 
x ˆˆ‡
–‹˜‡Žƒ•–‹
‹–›
†‡šǣ͵Ͳ
x Ž‹ƒ–‹
ƒ–‹‰ǣ™αͳͷ
x ‡‹ˆ‘”
‡‡–ǣ‡”•–”—
–—”ƒŽ†‡•‹‰‡”Ǥ
x ‹‹— ‘‘–‹‰‡’–ŠǣʹͶ‹
Š‡•„‡Ž‘™Ž‘™‡•–ƒ†Œƒ
‡–‰”ƒ†‡Ǥ
x ‘‹•–—”‡
‘†‹–‹‘ȋ’”‡•‘ƒȌ•Žƒ„•—„‰”ƒ†‡–‘ͳͶͲΨ‘ˆ‘’–‹— ‘‹•–—”‡ ‘–‡–
–‘ƒ‹‹—†‡’–Š‘ˆʹͶ‹
Š‡•’”‹‘”–‘–”‡
Š‹‰Ǥ

Š‡ ”‡
‘‡†‡† ‘‹•–—”‡
‘–‡– •Š‘—Ž† „‡ ƒ‹–ƒ‹‡† —’ –‘ –Š‡ –‹‡ ‘ˆ
‘
”‡–‡
’Žƒ
‡‡–Ǥ
–•Š‘—Ž†„‡‘–‡†–Šƒ–†‡‡’‡‡†ˆ‘‘–‹‰•ƒ›„‡”‡“ —‹”‡†‹ ‡”–ƒ‹ƒ”‡ƒ•
‹‘”†‡”–‘ƒ˜‘‹†•—”
Šƒ”‰‡Ž‘ƒ†‹‰ƒ†Œƒ
‡–‡š‹•–‹‰”‡–ƒ‹‹‰™ƒŽŽ•Ǥ



Project No. 21138-01 Page 17 July 15, 2021

5.3.2 PreliminaryPostǦTensionedFoundationDesignParameters 
 ‡ ” ‡
‘   ‡  † – Š ƒ – ’ ‘ • – Ǧ – ‡  • ‹ ‘  ‡ † • Ž ƒ „ • • Š ‘ — Ž † „ ‡ † ‡ • ‹ ‰  ‡ † — • ‹  ‰ –Š‡ ‰‡‘–‡ Š‹
ƒŽ
’ƒ”ƒ‡–‡”• ’”‘˜‹†‡† ‹ ƒ„Ž‡ʹǤ Š‡•‡ ’ƒ”ƒ‡–‡”• Šƒ˜‡ „‡‡ †‡–‡”‹‡† ‹ ‰‡‡”ƒŽ ƒ

‘”†ƒ
‡™‹–Š–Š‡‘•–Ǧ‡•‹‘‹‰
•–‹–—–‡ȋ
ǡʹͲͳʹȌ–ƒ† ƒ”†‡“—‹”‡‡–•ȋ

ͳͲǤͷȌǡ”‡ˆ‡”‡
‡†‹Šƒ’–‡”ͳͺ‘ˆ–Š‡ʹͲͳͻǤ
—–‹Ž‹œ‹ ‰–Š‡•‡’ƒ”ƒ‡–‡”•ǡ–Š‡
ˆ‘—†ƒ–‹‘ ‡‰‹‡‡” •Š‘—Ž† †‡•‹‰ –Š‡ ˆ‘—†ƒ–‹‘ •›•–‡ ‹ ƒ

‘ ”†ƒ
‡ ™‹–Š –Š‡
ƒŽŽ‘™ƒ„Ž‡†‡ˆŽ‡
–‹‘
”‹–‡”‹ƒ‘ˆƒ’’Ž‹
ƒ„Ž‡
‘†‡•ƒ†–Š‡”‡“—‹”‡‡–•‘ˆ–Š‡•–”—
–—”ƒŽ
†‡•‹‰‡”Ȁƒ”
Š‹–‡
–Ǥ –Š‡” –›’‡• ‘ˆ •–‹ˆˆ •Žƒ„• ƒ› „‡ —•‡† ‹ ’Žƒ ‡ ‘ˆ –Š‡  ’‘•–Ǧ
–‡•‹‘‡† •Žƒ„ †‡•‹‰ ’”‘˜‹†‡† –Šƒ–ǡ ‹ –Š‡ ‘’‹‹‘ ‘ˆ –Š‡ ˆ‘—†ƒ–‹‘ •–”— –—”ƒŽ
†‡•‹‰‡”ǡ–Š‡ƒŽ–‡”ƒ–‹˜‡–›’‡‘ˆ•Žƒ„‹•ƒ–Ž‡ƒ•–ƒ••–‹ˆˆƒ†•–”‘‰ƒ•–Šƒ–†‡•‹‰‡†„›–Š‡ Ȁ
‡–Š‘†Ǥ

‘‹ŽǦ‘‹•–—”‡
Šƒ‰‡„‡Ž‘™•Žƒ„•‹•–Š‡ƒŒ‘”ˆƒ
–‘”‹ˆ‘—†ƒ–‹‘†ƒƒ‰‡”‡Žƒ–‹‰–‘
‡ š ’ ƒ  • ‹ ˜ ‡ • ‘ ‹ Ž • Ǥ  Š ‡  
† ‡ • ‹ ‰   ‡ – Š ‘ † ‘ Ž ‘ ‰ › Š ƒ •  ‘ 
‘  • ‹ † ‡ ” ƒ – ‹ ‘ ˆ‘” ’”‡•‘ƒ‹‰ǡ
Š‘‡‘™‡”‹””‹‰ƒ–‹‘ǡ‘”‘–Š‡”‘Ǧ
Ž‹ƒ–‡”‡Žƒ–‡†‹ˆŽ—‡
‡•‘ –Š‡‘‹•–—”‡
‘–‡–
‘ˆ•—„‰”ƒ†‡•‘‹Ž•Ǥ
”‡
‘‰‹–‹‘‘ˆ–Š‡•‡ˆƒ
–‘”•ǡƒ†‘—”’”‡ ˜‹‘—•‡š’‡”‹‡
‡ƒ†™‘”
‘–Š‡‰‡‘–‡
Š‹
ƒŽ
•—„
‘‹––‡‡ǡ™‡Šƒ˜‡‘†‹ˆ‹‡†–Š‡‰‡‘– ‡
Š‹
ƒŽ’ƒ”ƒ‡–‡”•
‘„–ƒ‹‡†ˆ”‘–Š‹•‡–Š‘†‘Ž‘‰›–‘ƒ

‘—–ˆ‘”ƒǦƒ†‡
‘†‹–‹‘••—
Šƒ•‹ˆŽ—‡
‡
‘ ˆ ‹ ” ” ‹ ‰ ƒ – ‹ ‘  Ǥ  — ” † ‡ • ‹ ‰  ’ ƒ ” ƒ  ‡ – ‡ ” • ƒ ” ‡ „ ƒ • ‡ † ‘  ‘ — ” ‡ š ’ ‡ ” ‹ ‡  ‡ ™‹–Š •‹‹Žƒ”
” ‡ • ‹ † ‡  – ‹ ƒ Ž ’ ” ‘ Œ ‡
– • ƒ  † – Š ‡ ƒ  – ‹
‹ ’ ƒ – ‡ †  ƒ – — ” ‡ ‘ ˆ – Š ‡ • ‘ ‹ Ž ȋ ™ ‹–Š ”‡•’‡ – –‘ ‡š’ƒ•‹‘
’‘–‡–‹ƒŽȌǤŽ‡ƒ•‡‘–‡–Šƒ–‹’Ž‡‡–ƒ–‹‘‘ˆ‘—””‡
‘‡†ƒ–‹ ‘•™‹ŽŽ‘–‡Ž‹‹ƒ–‡
ˆ‘—†ƒ–‹‘ ‘˜‡‡– ȋƒ† ”‡Žƒ–‡† †‹•–”‡••Ȍ •Š‘—Ž† –Š‡ ‘‹•–—”‡ ‘–‡– ‘ˆ –Š‡
•—„‰”ƒ†‡•‘‹Ž•ˆŽ—
–—ƒ–‡Ǥ
–‹•–Š‡‹–‡–‘ˆ–Š‡•‡”‡
‘‡†ƒ– ‹‘•–‘Š‡Ž’ƒ‹–ƒ‹–Š‡
‹–‡‰”‹–›‘ˆ–Š‡’”‘’‘•‡†•–”—
–—”‡•ƒ†”‡†—
‡ȋ‘–‡Ž‹‹ƒ–‡Ȍ ‘˜‡‡–ǡ„ƒ•‡†—’‘
–Š‡ ƒ–‹
‹’ƒ–‡† •‹–‡ •‘‹Ž
‘†‹–‹‘•Ǥ  Š‘—Ž† ˆ—–—”‡ ‘™‡”• ‘– ’”‘’‡”Ž› ƒ‹–ƒ‹ –Š‡ ƒ”‡ƒ••—””‘—†‹‰–Š‡ˆ‘—†ƒ–‹‘ǡˆ‘”‡šƒ’Ž‡„›‘˜‡”™ƒ–‡”‹‰ǡ–Š‡™‡ƒ–‹ ‹’ƒ–‡ˆ‘”
Š ‹ ‰ Š Ž › ‡ š ’ ƒ  • ‹ ˜ ‡ • ‘ ‹ Ž • – Š ‡  ƒ š ‹  —  † ‹ ˆ ˆ ‡ ” ‡  – ‹ ƒ Ž  ‘ ˜ ‡  ‡  – ‘ ˆ – Š ‡ ’‡”‹‡–‡” ‘ˆ –Š‡ ˆ‘—†ƒ–‹‘–‘–Š‡
‡–‡”‘ˆ–Š‡ˆ‘—†ƒ–‹‘–‘„‡‘–Š‡‘”†‡”‘ˆƒ
‘—’Ž‡‘ˆ‹
Š‡•Ǥ‘‹Ž•
‘ˆŽ‘™‡”‡š’ƒ•‹‘’‘–‡–‹ƒŽƒ”‡ƒ–‹
‹’ƒ–‡†–‘•Š‘™Ž‡••‘˜‡‡–Ǥ

Project No. 21138-01 Page 18 July 15, 2021


TABLE2

PreliminaryGeotechnicalParametersforPostǦTensionedFoundationSlabDesign 
Parameter
PTSlabwith
Perimeter
Footing
PTMatwith
ThickenedEdge
š’ƒ•‹‘
†‡š ‡†‹—ͳ ‡†‹—ͳ
Š‘”–Š™ƒ‹–‡‘‹•–—”‡
†‡š ǦʹͲ ǦʹͲ
‘•–ƒ–‘‹Ž—
–‹‘  ͵Ǥͻ  ͵Ǥͻ
‡–‡”‹ˆ–
 †‰‡‘‹•–—”‡˜ƒ”‹ƒ–‹‘†‹•–ƒ
‡ǡ‡ 
 ‡  – ‡ ”  Ž ‹ ˆ – ǡ  › 

ͻǤͲˆ‡‡–
ͲǤͷ‹
Š

ͻǤͲˆ‡‡–
ͲǤ͸‹
Š
†‰‡‹ˆ–
 †‰‡‘‹•–—”‡˜ƒ”‹ƒ–‹‘†‹•–ƒ
‡ǡ‡

 †‰‡Ž‹ˆ–ǡ› 

ͶǤ͹ˆ‡‡–
ͳǤͳ‹
Š

ͶǤ͹ˆ‡‡–
ͳǤ͵‹
Š
‘†—Ž—•‘ˆ—„‰”ƒ†‡‡ƒ
–‹‘ǡȋƒ••—‹‰
’”‡•‘ƒ‹‰ƒ•‹†‹
ƒ–‡†„‡Ž‘™Ȍ ͳͷͲ’
‹ ͳͷͲ’
‹
‹‹—’‡”‹‡–‡”ˆ‘‘–‹‰Ȁ–Š‹
‡‡†‡†‰‡
‡„‡†‡–„‡Ž‘™ˆ‹‹•Š‰”ƒ†‡ ͳͺ‹
Š‡• ͸‹
Š‡•
ͳǤ ••—‡† ˆ‘” ’”‡Ž‹‹ƒ”› †‡•‹‰ ’—”’‘•‡•Ǥ —”–Š‡” ‡˜ƒŽ—ƒ–‹‘ ‹• ‡‡†‡† ƒ– –Š‡ ‘’Ž‡–‹‘ ‘ˆ
‰”ƒ†‹‰Ǥ
ʹǤ ‡
‘‡†ƒ–‹‘•ˆ‘”ˆ‘—†ƒ–‹‘”‡‹ˆ‘”
‡‡–ƒ†•Žƒ„–Š‹
‡••ƒ”‡—Ž–‹ƒ–‡Ž›–Š‡’—”˜‹‡™
‘ˆ–Š‡ˆ‘—†ƒ–‹‘‡‰‹‡‡”Ȁ•–”—
–—”ƒŽ‡‰‹‡‡”„ƒ•‡†—’‘‰‡‘–‡
Š‹
ƒŽ
”‹–‡”‹ƒƒ†•–”—
–—”ƒŽ
‡‰‹‡‡”‹‰
‘•‹†‡”ƒ–‹‘•Ǥ
͵Ǥ ‡
‘‡†ƒ–‹‘• ˆ‘” ˜ƒ’‘” ”‡–ƒ”†‡”• „‡Ž‘™ •Žƒ„• ƒ”‡ ƒŽ•‘ –Š‡ ’—” ˜ ‹ ‡ ™ ‘ ˆ – Š ‡ ˆ ‘ —  † ƒ – ‹ ‘   ‡‰‹‡‡”Ȁ•–”—
–—”ƒŽ ‡‰‹‡‡” ƒ† •Š‘—Ž† „‡ ’”‘˜‹†‡† ‹ ƒ

‘”†ƒ
‡ ™‹–Š ƒ’’Ž‹
ƒ„Ž‡
‘†‡
”‡“—‹”‡‡–•Ǥ
ͶǤ  ‘ ‹ • – — ” ‡ 
‘  † ‹ – ‹ ‘  – ‘ ͳ ʹ Ͳ Ψ ‘ ˆ ‘ ’ – ‹  —   ‘ ‹ • – — ” ‡  ‘  – ‡  – – ‘ ƒ † ‡ ’ – Š ‘ ˆ ͳ ͺ ‹ 
Š ‡ • ’ ” ‹ ‘ ” – ‘ 
–”‡
Š‹‰Ǥ



5.3.3 PostTensionedFoundationSubgradePreparationandMaintenance 
”‡•‘ƒ‹‰ ‘ˆ –Š‡ •—„‰”ƒ†‡ •‘‹Ž• ‹• ”‡
‘‡†‡† ’”‹‘” –‘ –”‡
Š‹‰ –Š‡ ˆ‘—†ƒ–‹‘Ǥ
”‡•‘ƒ”‡
‘‡†ƒ–‹‘••’‡
‹ˆ‹
–‘–Š‡ƒ–‹
‹’ƒ–‡†•‹–‡•‘‹Ž
‘†‹–‹‘•ƒ”‡’”‡•‡–‡†
‹   ƒ „ Ž ‡ ʹ Ǥ  Š ‡ • — „ ‰ ” ƒ † ‡  ‘ ‹ • – — ” ‡  ‘  † ‹ – ‹ ‘  ‘ ˆ – Š ‡ „ — ‹ Ž † ‹  ‰ ’ ƒ † • ‘ ‹ Ž • • Š ‘ — Ž † „ ‡   ƒ ‹  – ƒ ‹  ‡ † ƒ –  ‡ ƒ ” ‘ ’ – ‹  —   ‘ ‹ • – — ” ‡  ‘  – ‡  – — ’ – ‘ – Š ‡ – ‹  ‡ ‘ ˆ 
‘
”‡–‡ ’Žƒ
‡‡–Ǥ
Š‹• ‘‹•–—”‡
‘–‡– •Š‘—Ž† „‡ ƒ‹–ƒ‹‡† ƒ”‘—† –Š‡ ‹‡†‹ƒ–‡ ’‡”‹‡–‡” ‘ˆ –Š‡ •Žƒ„†—”‹‰
‘•–”—
–‹‘ƒ†—’–‘‘

—’ƒ
›‘ˆ–Š‡Š‘‡•Ǥ

Š‡ ‰‡‘–‡
Š‹
ƒŽ ’ƒ”ƒ‡–‡”• ’”‘˜‹†‡† ‹ ƒ„Ž‡ ʹ ƒ••—‡ –Šƒ– ‹ˆ–Š‡ ƒ”‡ƒ• ƒ†Œƒ ‡– –‘
– Š ‡ ˆ ‘ —  † ƒ – ‹ ‘  ƒ ” ‡ ’ Ž ƒ  – ‡ † ƒ  † ‹ ” ” ‹ ‰ ƒ – ‡ † ǡ – Š ‡ • ‡ ƒ ” ‡ ƒ • ™ ‹ Ž Ž „ ‡ †‡•‹‰‡† ™‹–Š ’”‘’‡” †”ƒ‹ƒ‰‡ƒ†ƒ†‡“—ƒ–‡Ž›ƒ‹–ƒ‹‡†•‘–Šƒ–’‘†‹‰ǡ™Š‹ Š
ƒ—•‡ ••‹‰‹ˆ‹
ƒ–‘‹•–—”‡

Šƒ‰‡•„‡Ž‘™–Š‡ˆ‘—†ƒ–‹‘ǡ†‘‡•‘–‘

—”Ǥ—””‡
‘‡†ƒ–‹‘•†‘‘–ƒ

‘—–ˆ‘”
‡š
‡••‹˜‡‹””‹‰ƒ–‹‘ƒ†Ȁ‘”‹
‘””‡
–Žƒ†•
ƒ’‡†‡•‹‰ǤŽƒ–••Š‘—Ž†‘Ž›„‡’”‘˜‹†‡†

Project No. 21138-01 Page 19 July 15, 2021
™‹–Š •—ˆˆ‹
‹‡– ‹””‹‰ƒ–‹‘ ˆ‘” Ž‹ˆ‡ ƒ† ‘– ‘˜‡”™ƒ–‡”‡† –‘ •ƒ–— ”ƒ–‡ •—„‰”ƒ†‡ •‘‹Ž•Ǥ  —   ‡  ’ Ž ƒ  – ‡ ” • ’ Ž ƒ
‡ † ƒ † Œ ƒ
‡  – – ‘ – Š ‡ ˆ ‘ —  † ƒ – ‹ ‘  ǡ • Š ‘ — Ž † ‡ ‹ – Š ‡” „‡ †‡•‹‰‡† ™‹–Š ƒ ‡ˆˆ‹
‹‡– †”ƒ‹ƒ‰‡ •›•–‡ ‘” Ž‹‡”• –‘ ’”‡˜‡– ‘‹•–—”‡ ‹ˆ‹Ž–” ƒ–‹‘ „‡Ž‘™ –Š‡ ˆ‘—†ƒ–‹‘Ǥ ‘‡ Ž‹ˆ–‹‰ ‘ˆ –Š‡ ’‡”‹‡–‡” ˆ‘—†ƒ–‹‘ „‡ƒ •Š‘—Ž† „‡ ‡š’‡ –‡† ‡˜‡
™‹–Š’”‘’‡”Ž›
‘•–”—
–‡†’Žƒ–‡”•Ǥ


ƒ††‹–‹‘–‘–Š‡ˆƒ
–‘”•‡–‹‘‡†ƒ„‘˜‡ǡˆ—–—”‡Š‘‡‘™‡”••Š‘—Ž†„‡ƒ†‡ƒ™ƒ”‡ ‘ ˆ – Š ‡ ’ ‘ – ‡  – ‹ ƒ Ž  ‡ ‰ ƒ – ‹ ˜ ‡ ‹  ˆ Ž — ‡  ‡ • ‘ ˆ – ” ‡ ‡ • ƒ  † Ȁ ‘ ” ‘ – Š ‡ ” Ž ƒ ” ‰‡ ˜‡‰‡–ƒ–‹‘Ǥ ‘‘–• –Šƒ– ‡š–‡† ‡ƒ” –Š‡ ˜‹
‹‹–› ‘ˆ ˆ‘—†ƒ–‹‘•
ƒ
ƒ—•‡ †‹•–”‡•• –‘ ˆ ‘—†ƒ–‹‘•Ǥ —–—”‡
Š‘‡‘™‡”•ȋƒ†–Š‡‘™‡”ǯ•Žƒ†•
ƒ’‡ƒ”
Š‹–‡
–Ȍ•Š‘—Ž†‘–’Žƒ ––”‡‡•ȀŽƒ”‰‡•Š”—„•

Ž‘•‡”–‘–Š‡ˆ‘—†ƒ–‹‘•–Šƒƒ†‹•–ƒ
‡‡“—ƒŽ–‘ŠƒŽˆ–Š‡ƒ– —”‡Š‡‹‰Š–‘ˆ–Š‡–”‡‡‘”
ʹͲˆ‡‡–ǡ™Š‹
Š‡˜‡”‹•‘”‡
‘•‡”˜ƒ–‹˜‡—Ž‡•••’‡
‹ˆ‹
ƒŽŽ›’”‘˜‹†‡†™‹–Š”‘‘–„ƒ””‹‡”•
–‘’”‡˜‡–”‘‘–‰”‘™–Š„‡Ž‘™–Š‡Š‘—•‡ˆ‘—†ƒ–‹‘Ǥ


– ‹• –Š‡ Š‘‡‘™‡”ǯ• ”‡•’‘•‹„‹Ž‹–› –‘ ’‡”ˆ‘” ’‡”‹‘†‹  ƒ‹–‡ƒ
‡ †—”‹‰ Š‘– ƒ†
† ” › ’ ‡ ” ‹ ‘ † • – ‘ ‡  • — ” ‡ – Š ƒ – ƒ † ‡ “ — ƒ – ‡ ™ ƒ – ‡ ” ‹  ‰ Š ƒ • „ ‡ ‡  ’ ” ‘ ˜ ‹ † ‡ † – ‘  ‡ ‡ ’ • ‘ ‹ Ž ˆ ” ‘   •‡’ƒ”ƒ–‹‰ ‘” ’—ŽŽ‹‰ „ƒ
 ˆ”‘ –Š‡ ˆ‘—†ƒ–‹‘Ǥ —–—”‡ Š‘‡‘™‡ ”• •Š‘—Ž† „‡ ‹ˆ‘”‡†ƒ†‡†—
ƒ–‡†”‡‰ƒ”†‹‰–Š‡‹’‘”–ƒ
‡‘ˆƒ‹–ƒ‹‹‰ƒ
‘•–ƒ–Ž‡˜‡Ž‘ˆ•‘‹ŽǦ
‘‹•–—”‡ǤŠ‡‘™‡”••Š‘—Ž†„‡ƒ†‡ƒ™ƒ”‡‘ˆ–Š‡’‘–‡–‹ƒŽ‡‰ƒ –‹˜‡ ‘•‡“—‡
‡•‘ˆ
„‘–Š‡š
‡ ••‹ ˜‡™ƒ –‡”‹‰ ǡƒ•™‡ŽŽƒ•ƒŽŽ‘™‹‰’‘ –‡–‹ƒŽŽ›‡ š ’ƒ •‹˜‡•‘‹Ž•–‘„‡ ‘‡–‘‘
†”›Ǥš’ƒ•‹˜‡•‘‹Ž•
ƒ—†‡”‰‘•Š”‹ƒ‰‡†—”‹‰†”›‹‰ǡƒ†•™‡ŽŽ‹‰†—”‹‰–Š‡”ƒ‹› ™ ‹  – ‡ ” • ‡ ƒ • ‘  ǡ ‘ ” ™ Š ‡  ‹ ” ” ‹ ‰ ƒ – ‹ ‘  ‹ • ” ‡ • —  ‡ † Ǥ  Š ‹ •  ƒ  ” ‡ • — Ž – ‹ †‹•–”‡•• –‘ „—‹Ž†‹‰
• – ” —
– — ” ‡ • ƒ  † Š ƒ ” † •
ƒ ’ ‡ ‹  ’ ” ‘ ˜ ‡  ‡  – • Ǥ  Š ‡ „ — ‹ Ž † ‡ ” • Š ‘ — Ž † ’ ” ‘ ˜ ‹†‡ –Š‡•‡ ”‡
‘‡†ƒ–‹‘•–‘ˆ—–—”‡Š‘‡‘™‡”•Ǥ



5.3.4 SlabUnderlaymentGuidelines

Š‡ˆ‘ŽŽ‘™‹‰‹•ˆ‘”‹ˆ‘”ƒ–‹‘ƒŽ’—”’‘•‡•‘Ž›•‹
‡•Žƒ„—†‡”Žƒ›‡–ȋ‡Ǥ‰Ǥǡ‘‹•–—”‡
”‡–ƒ”†‡”ǡ•ƒ†‘”‰”ƒ˜‡ŽŽƒ›‡”•ˆ‘”
‘
”‡–‡
—”‹‰ƒ†Ȁ‘”
ƒ’‹ ŽŽƒ”›„”‡ƒȌ‹•—”‡Žƒ–‡†
–‘–Š‡‰‡‘–‡
Š‹
ƒŽ’‡”ˆ‘”ƒ
‡‘ˆ–Š‡ˆ‘—†ƒ–‹‘ƒ†–Š‡”‡„›‘––Š‡’—”˜‹‡™‘ˆ–Š‡ ‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ–Ǥ ‘•–Ǧ
‘•–”—
–‹‘ ‘‹•–—”‡ ‹‰”ƒ–‹‘ •Š‘—Ž† „‡ ‡š’‡
–‡†
„‡Ž‘™–Š‡ˆ‘—†ƒ–‹‘ǤŠ‡ˆ‘—†ƒ–‹‘‡‰‹‡‡”Ȁƒ”
Š‹–‡
–•Š‘—Ž††‡–‡”‹‡™Š‡–Š‡”–Š‡
—•‡‘ˆƒ
ƒ’‹ŽŽƒ”›„”‡ƒȋ•ƒ†‘”‰”ƒ˜‡ŽŽƒ›‡”Ȍǡ‹
‘Œ—
–‹‘ ™‹–Š–Š‡˜ƒ’‘””‡–ƒ”†‡”ǡ‹•
‡
‡••ƒ”›‘””‡“—‹”‡†„›
‘†‡Ǥƒ†Žƒ›‡”–Š‹
‡••ƒ†Ž‘
ƒ–‹‘ ȋƒ„‘˜‡ƒ†Ȁ‘”„‡Ž‘™
˜ƒ’‘””‡–ƒ”†‡”Ȍ•Š‘—Ž†ƒŽ•‘„‡†‡–‡”‹‡†„›–Š‡ˆ‘—†ƒ–‹‘‡‰‹‡‡”Ȁƒ” Š‹–‡
–Ǥ



5.3.5 SoilBearing

ƒŽŽ‘™ƒ„Ž‡•‘‹Ž„‡ƒ”‹‰’”‡••—”‡‘ˆͳǡͷͲͲ’‘—†•’‡”•“—ƒ”‡ˆ‘‘–ȋ’•ˆȌƒ›„‡—•‡†ˆ‘” –Š‡†‡•‹‰‘ˆˆ‘‘–‹‰•Šƒ˜‹‰ƒ‹‹—™‹†–Š‘ˆͳʹ‹
Š‡•ƒ†‹‹—‡„‡†‡–‘ˆ
ͳʹ‹
Š‡•„‡Ž‘™Ž‘™‡•–ƒ†Œƒ
‡–‰”‘—†•—”ˆƒ
‡ǤŠ‹•˜ƒŽ—‡ƒ›„‡‹
”‡ƒ•‡†„›͵ͲͲ’•ˆ
ˆ‘”‡ƒ
Šƒ††‹–‹‘ƒŽˆ‘‘–‘ˆ‡„‡†‡–‘”ͳͲͲ’•ˆˆ‘”‡ƒ
Šƒ††‹– ‹‘ƒŽˆ‘‘–‘ˆˆ‘—†ƒ–‹‘
™‹†–Š–‘ƒƒš‹—˜ƒŽ—‡‘ˆʹǡͷͲͲ’•ˆǤƒŽŽ‘™ƒ„Ž‡•‘‹Ž„‡ƒ”‹ ‰’”‡••—”‡‘ˆ ͳǡʹͲͲ’•ˆ ƒ›„‡—•‡†ˆ‘”ƒƒ–’‘•–Ǧ–‡•‹‘‡†•Žƒ„ƒ‹‹—‘ˆ͸‹ Š‡•„‡Ž‘™Ž‘™‡•–ƒ†Œƒ
‡–
‰”ƒ†‡ǤŠ‡•‡ƒŽŽ‘™ƒ„Ž‡„‡ƒ”‹‰’”‡••—”‡•ƒ”‡ƒ’’Ž‹
ƒ„Ž‡ˆ‘”Ž‡˜‡Žȋ‰”‘—†•Ž‘’‡‡“—ƒŽ–‘
‘” ˆŽƒ––‡” –Šƒ ͷ
ǣͳȌ
‘†‹–‹‘• ‘Ž›Ǥ ‡ƒ”‹‰ ˜ƒŽ—‡• ‹†‹
ƒ–‡† ƒ”‡ ˆ‘” –‘–ƒŽ †‡ƒ† Ž‘ƒ†•
ƒ†ˆ”‡“—‡–Ž›ƒ’’Ž‹‡†Ž‹˜‡Ž‘ƒ†•ƒ†ƒ›„‡‹
”‡ƒ•‡†„›᪞ˆ‘”•Š‘”–†—”ƒ–‹‘Ž‘ƒ†‹‰
ȋ‹Ǥ‡Ǥǡ™‹†‘”•‡‹•‹
Ž‘ƒ†•ȌǤ

Project No. 21138-01 Page 20 July 15, 2021


—–‹Ž‹œ‹‰–Š‡ƒ„‘˜‡Ǧ‡–‹‘‡†ƒŽŽ‘™ƒ„Ž‡„‡ƒ”‹‰
ƒ’ƒ
‹–›ƒ†’”‘˜‹†‡†‘—”‡ƒ”–Š™‘”
”‡
‘‡†ƒ–‹‘• ƒ”‡ ‹’Ž‡‡–‡†ǡ ˆ‘—†ƒ–‹‘ •‡––Ž‡‡– †—‡ –‘ •–”— –—”ƒŽ Ž‘ƒ†• ‹•
ƒ–‹
‹’ƒ–‡† –‘ „‡ ͳǦ‹
ŠǤ ‹ˆˆ‡”‡–‹ƒŽ •‡––Ž‡‡– ƒ› „‡ –ƒ‡ ƒ • Š ƒ Ž ˆ ‘ ˆ – Š ‡ – ‘ – ƒ Ž  •‡––Ž‡‡–ȋ‹Ǥ‡ǤǡΦǦ‹
Š‘˜‡”ƒŠ‘”‹œ‘–ƒŽ•’ƒ‘ˆͶͲˆ‡‡–ȌǤ

‡•‹•–ƒ
‡–‘Žƒ–‡”ƒŽŽ‘ƒ†•
ƒ„‡’”‘˜‹†‡†„›ˆ”‹
–‹‘ƒ
–‹‰ ƒ––Š‡„ƒ•‡‘ˆˆ‘—†ƒ–‹‘•
ƒ  † „ › ’ ƒ • • ‹ ˜ ‡ ‡ ƒ ” – Š ’ ” ‡ • • — ” ‡ Ǥ  ‘ ”  ‘ 
” ‡ – ‡ Ȁ • ‘ ‹ Ž ˆ ” ‹
– ‹ ‘  ƒ Ž ” ‡ •‹•–ƒ
‡ǡ ƒ ƒŽŽ‘™ƒ„Ž‡

‘‡ˆˆ‹
‹‡– ‘ˆ ˆ”‹
–‹‘ ‘ˆ ͲǤ͵ͷ ƒ› „‡ ƒ••—‡† ™‹–Š †‡ƒ†ǦŽ‘ƒ† ˆ ‘” ‡•Ǥ  ƒŽŽ‘™ƒ„Ž‡
’ƒ••‹˜‡ Žƒ–‡”ƒŽ ‡ƒ”–Š ’”‡••—”‡ ‘ˆ ʹͷͲ ’•ˆ ’‡” ˆ‘‘– ‘ˆ †‡’–Š ȋ‘”’ ˆ Ȍ – ‘ ƒ  ƒ š ‹  —  ‘ ˆ 
ʹǡͷͲͲ ’•ˆ ƒ› „‡ —•‡† ˆ‘”–Š‡•‹†‡•‘ˆˆ‘‘–‹‰• ’‘—”‡†ƒ‰ƒ‹•–’”‘’‡”Ž› ‘’ƒ
–‡† ˆ‹ŽŽǤ
Š‹• ’ƒ••‹˜‡ ’”‡••—”‡ ‹• ƒ’’Ž‹
ƒ„Ž‡ ˆ‘” Ž‡˜‡Ž ȋ‰”‘—† •Ž‘’‡ ‡“— ƒ Ž – ‘ ‘ ” ˆ Ž ƒ – – ‡ ” – Š ƒ   ͷ
ǣͳȌ
‘†‹–‹‘• ‘Ž›Ǥ Š‡ ’ƒ••‹˜‡ ’”‡••—”‡ ƒ› „‡ ‹
”‡ƒ•‡† „› ‘‡Ǧ–Š‹”† †—‡ –‘
™‹† ‘” •‡‹•‹
 ˆ‘”
‡•Ǥ ‡ ”‡
‘‡† –Šƒ– –Š‡ —’’‡” ˆ‘‘– ‘ˆ ’ƒ••‹˜‡ ”‡•‹•–ƒ
‡ „‡
‡‰Ž‡
–‡† ‹ˆ ˆ‹‹•Š‡† ‰”ƒ†‡ ™‹ŽŽ ‘– „‡
‘˜‡”‡† ™‹–Š
‘
”‡–‡ ‘ ” ƒ•’ŠƒŽ–Ǥ ”‹
–‹‘ƒŽ
”‡•‹•–ƒ
‡ ƒ† ’ƒ••‹˜‡ ’”‡••—”‡ ƒ› „‡ —•‡† ‹
‘„‹ƒ–‹‘ ™‹–Š‘—– ”‡†—
–‹‘Ǥ Š‡
’”‘˜‹†‡†ƒŽŽ‘™ƒ„Ž‡’ƒ••‹˜‡’”‡••—”‡•ƒ”‡„ƒ•‡†‘ƒˆƒ
–‘”‘ˆ•ƒˆ‡–›‘ˆͳǤͷƒ†ͳǤͳˆ‘”
•–ƒ–‹
ƒ†•‡‹•‹
Ž‘ƒ†‹‰
‘†‹–‹‘•ǡ”‡•’‡
–‹˜‡Ž›Ǥ




5.3.6 FoundationSetbackfromTopǦofǦSlopeandBottomǦofǦSlope 
‘—†ƒ–‹‘••Š‘—Ž†Šƒ˜‡ƒ†‡“—ƒ–‡•‡–„ƒ
ˆ”‘–‘’ƒ†„‘––‘‘ˆ•Ž‘’‡•‹ƒ

‘”†ƒ
‡
™‹–Š–Š‡
‹–›‘ˆƒƒ”
‘•
”ƒ†‹‰‘†‡ƒ†–Š‡ʹͲͳͻǤ

—‹Ž†‹‰ ˆ‘‘–‹‰• Ž‘
ƒ–‡† ƒ– –‘’• ‘ˆ •Ž‘’‡• ™‹ŽŽ ”‡“—‹”‡ ƒ ‹‹— •‡–„ƒ  †‹•–ƒ
‡ǡ ƒ•
‡ƒ•—”‡† Š‘”‹œ‘–ƒŽŽ› ˆ”‘ –Š‡ „‘––‘ ‘ˆ –Š‡ ˆ‘—†ƒ–‹‘ –‘ –Š‡‡ƒ”‡•– •Ž‘’‡ ‘”  ™ƒŽŽ ˆƒ
‡Ǥ
 ‰‡‡”ƒŽǡ „—‹Ž†‹‰ •‡–„ƒ
• •Š‘—Ž† „‡ ƒ– Ž‡ƒ•– ‘‡Ǧ–Š‹”† ‘ˆ –Š‡ •Ž‘’‡ Š‡‹‰Š–ǡ ™‹–Šƒƒš‹—”‡“—‹”‡†Š‘”‹œ‘–ƒŽ•‡–„ƒ
‘ˆͶͲˆ‡‡–ǤŠ‡†‡–‡”‹‹‰–Š‡Š‡‹‰Š–‘ˆ
–Š‡ •Ž‘’‡ǡ ”‡–ƒ‹‹‰ ™ƒŽŽ Š‡‹‰Š–• •Š‘—Ž† „‡ ‹
Ž—†‡† ‹ –Š‡ –‘–ƒ Ž • Ž ‘ ’ ‡ Š ‡ ‹ ‰ Š – Ǥ  ‡ – „ ƒ  
”‡“—‹”‡‡–• ƒ› „‡ ƒ

‘’Ž‹•Š‡† „›
‘•–”—
–‹‘ ‘ˆ †‡‡’‡‡† ˆ‘‘–‹‰•Ǥ ‘—†ƒ–‹‘
•‡–„ƒ

”‹–‡”‹ƒ•Š‘—Ž†„‡”‡˜‹‡™‡†„ƒ•‡†‘–Š‡’”‡
‹•‡‰”ƒ†‹‰’Žƒ•Ǥ



5.3.7 Footing/FoundationExcavations

‘‘–‹‰Ȁˆ‘—†ƒ–‹‘‡š
ƒ˜ƒ–‹‘„‘––‘••Š‘—Ž†„‡ˆ‹”ǡ”‡Žƒ–‹˜‡Ž›—›‹‡Ž†‹‰ǡƒ†ˆ”‡‡‘ˆ Ž‘‘•‡ƒ–‡”‹ƒŽǤ ‘‘–‹‰Ȁˆ‘—†ƒ–‹‘‡š
ƒ˜ƒ–‹‘••Š‘—Ž†„‡‘„•‡”˜‡†ƒ†ƒ

‡’–‡†„›–Š‡
‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ–’”‹‘”–‘’Žƒ
‡‡–‘ˆ•–‡‡Ž”‡‹ˆ‘”
‡‡–Ǥ



5.4 LateralEarthPressuresandRetainingWallDesignConsiderations 
 ‡ – ƒ ‹  ‹  ‰ ™ ƒ Ž Ž • ‘ ˆ ƒ  › • ‹ ‰  ‹ ˆ ‹ ƒ 
‡ ƒ ” ‡  ‘ – ƒ  – ‹
‹ ’ ƒ – ‡ † ˆ ‘ ” – Š ‹• •‹–‡Ǥ Š‡ ˆ‘ŽŽ‘™‹‰ Žƒ–‡”ƒŽ ‡ƒ”–Š ’”‡••—”‡•ƒ›„‡—•‡†ˆ‘”‹‘”•‹–‡”‡–ƒ‹‹‰™ƒŽŽ•Ǥ

ƒ–‡”ƒŽ ‡ƒ”–Š ’”‡••—”‡• ˆ‘” ‹’‘”–‡† •‡Ž‡
– •ƒ†› •‘‹Ž• ƒ”‡ ’”‘˜‹†‡† „‡Ž‘™Ǥ ƒ–‡”ƒŽ ‡ƒ”–Š ’”‡••—”‡•ƒ”‡’”‘˜‹†‡† ƒ•‡“—‹˜ƒŽ‡–ˆŽ—‹† —‹– ™‡‹‰Š–•ǡ ‹ ’•ˆ’ ‡ ” ˆ ‘ ‘ –‘ ˆ †‡ ’ – Š ȋ ‘ ”’ ˆ ȌǤ  Š ‡ •‡
˜ƒŽ—‡•†‘‘–
‘–ƒ‹ƒƒ’’”‡
‹ƒ„Ž‡ˆƒ
–‘”‘ˆ•ƒˆ‡–›ǡ•‘–Š‡”‡–ƒ‹‹‰™ƒŽŽ†‡•‹‰‡”•Š‘—Ž†ƒ’’Ž› –Š‡ ƒ’’Ž‹
ƒ„Ž‡ ˆƒ
–‘”• ‘ˆ •ƒˆ‡–› ƒ†Ȁ‘” Ž‘ƒ† ˆƒ
–‘”• †—”‹‰ †‡•‹ ‰  Ǥ  • ‘ ‹ Ž —  ‹ – ™ ‡ ‹ ‰ Š – ‘ ˆ ͳ ʹ Ͳ ’ ˆ

Project No. 21138-01 Page 21 July 15, 2021
ƒ›„‡ƒ••—‡†ˆ‘”
ƒŽ
—Žƒ–‹‰–Š‡ƒ
–—ƒŽ™‡‹‰Š–‘ˆ•‘‹Ž‘˜‡”–Š‡™ƒŽŽˆ‘‘–‹‰Ǥ

Š‡ˆ‘ŽŽ‘™‹‰Žƒ–‡”ƒŽ‡ƒ”–Š’”‡••—”‡•ƒ”‡’”‡•‡–‡†‘ƒ„Ž‡Ͷˆ‘”ƒ’’”‘˜‡†•‡Ž‡ –‰”ƒ—Žƒ”•‘‹Ž•
™‹–Šƒƒš‹—‘ˆ͵ͷ’‡”
‡–ˆ‹‡•ȋ’ƒ••‹‰–Š‡‘ǤʹͲͲ•‹‡˜‡’‡”ǦͶʹͳȀͶʹʹȌƒ†Dz‡”›  ‘ ™ dz ‡ š ’ ƒ  • ‹ ‘  ’ ‘ – ‡  – ‹ ƒ Ž ȋ 
‘ ˆ ʹ Ͳ ‘ ” Ž ‡ • • ’ ‡ ”      Ͷ ͺ ʹ ͻ Ȍ Ǥ  Š ‡ ™ƒŽŽ †‡•‹‰‡” •Š‘—Ž† Ž‡ƒ”Ž›
‹†‹
ƒ–‡‘–Š‡”‡–ƒ‹‹‰™ƒŽŽ’Žƒ•–Š‡”‡“—‹”‡†•ƒ†›•‘‹Ž„ƒ ˆ‹ŽŽ
”‹–‡”‹ƒǤ


TABLE4

LateralEarthPressures–SelectSandBackfill

Condition
EquivalentFluidWeight(pcf)
LevelBackfill

–‹˜‡ ͵ͷ
–‡•– ͷͷ



ˆ–Š‡™ƒŽŽ
ƒ›‹‡Ž†‡‘—‰Š–‘‘„‹Ž‹œ‡–Š‡ˆ—ŽŽ•Š‡ƒ”•–”‡‰– Š‘ˆ–Š‡•‘‹Žǡ‹– ƒ„‡†‡•‹‰‡†ˆ‘”
Dzƒ
–‹˜‡dz ’”‡••—”‡Ǥ
ˆ –Š‡ ™ƒŽŽ
ƒ‘– ›‹‡Ž† —†‡” –Š‡ ƒ’’Ž‹‡† Ž‘ ƒ † ǡ – Š ‡ ‡ ƒ ” – Š ’ ” ‡ • • — ” ‡ ™ ‹ Ž Ž „ ‡  Š‹‰Š‡”ǤŠ‹•™‘—Ž†‹
Ž—†‡ͻͲǦ†‡‰”‡‡
‘”‡”•‘ˆ”‡–ƒ‹‹‰™ƒŽŽ• Ǥ—
Š™ƒŽŽ••Š‘—Ž†„‡†‡•‹‰‡†
ˆ‘”Dzƒ–Ǧ”‡•–ǤdzŠ‡‡“—‹˜ƒŽ‡–ˆŽ—‹†’”‡••—”‡˜ƒŽ—‡•ƒ••—‡ˆ”‡‡Ǧ†”ƒ‹‹‰ ‘†‹–‹‘•Ǥ‡–ƒ‹‹‰™ƒŽŽ
•–”—
–—”‡••Š‘—Ž†„‡’”‘˜‹†‡†™‹–Šƒ’’”‘’”‹ƒ–‡†”ƒ‹ƒ‰‡ƒ†ƒ’’”‘’”‹ƒ–‡Ž›™ƒ–‡”’”‘‘ˆ‡†ǡ”‡ˆ‡” – ‘  ‹ ‰ — ” ‡ ͵ Ǥ  Ž ‡ ƒ • ‡  ‘ – ‡ – Š ƒ – ™ ƒ – ‡ ” ’ ” ‘ ‘ ˆ ‹  ‰ ƒ  † ‘ — – Ž ‡ – • › • – ‡  • ƒ”‡ ‘– –Š‡ ’—”˜‹‡™ ‘ˆ –Š‡ ‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ–Ǥ
ˆ
‘†‹–‹‘• ‘–Š‡” –Šƒ –Š‘•‡ ƒ••—‡†ƒ „ ‘ ˜ ‡ ƒ ” ‡ ƒ  – ‹ ‹ ’ ƒ – ‡ † ǡ – Š ‡ 
‡“—‹˜ƒŽ‡– ˆŽ—‹† ’”‡••—”‡ ˜ƒŽ—‡• •Š‘—Ž† „‡ ’”‘˜‹†‡† ‘ ƒ ‹†‹˜ ‹†—ƒŽǦ ƒ•‡ „ƒ•‹• „› –Š‡
‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ–Ǥ

—”
Šƒ”‰‡Ž‘ƒ†‹‰‡ˆˆ‡
–•ˆ”‘ƒ›ƒ†Œƒ
‡–•–”—
–—”‡••Š‘—Ž†„‡‡˜ƒŽ—ƒ–‡†„›–Š‡”‡–ƒ‹‹‰™ƒŽŽ
†‡•‹‰‡”Ǥ
‰‡‡”ƒŽǡ•–”—
–—”ƒŽŽ‘ƒ†•™‹–Š‹ƒͳǣͳȋŠ‘”‹œ‘–ƒŽ–‘˜‡”–‹
ƒŽȌ—’™ƒ”†’”‘Œ‡
–‹‘ˆ”‘
–Š‡ „‘––‘ ‘ˆ –Š‡ ’”‘’‘•‡† ”‡–ƒ‹‹‰ ™ƒŽŽ ˆ‘‘–‹‰ ™‹ŽŽ •—” Šƒ”‰ ‡ –Š‡ ’”‘’‘•‡† ”‡–ƒ‹‹‰
•–”—
–—”‡Ǥ
 ƒ††‹–‹‘ –‘ –Š‡ ”‡
‘‡†‡† ‡ƒ”–Š ’”‡••—”‡ǡ ”‡–ƒ‹ ‹  ‰ ™ ƒ Ž Ž • ƒ † Œ ƒ ‡  – – ‘ • – ” ‡ ‡ – • 
•Š‘—Ž†„‡†‡•‹‰‡†–‘”‡•‹•–˜‡Š‹
—Žƒ”–”ƒˆˆ‹
‹ˆƒ’’Ž‹
ƒ„Ž‡Ǥ‹ˆ‘”•—”
Šƒ”‰‡•ƒ›„‡‡•–‹ƒ–‡†
—•‹‰–Š‡ƒ’’Ž‹
ƒ„Ž‡
‘‡ˆˆ‹
‹‡–‘ˆŽƒ–‡”ƒŽ‡ƒ”–Š’”‡••—”‡—•‹‰ƒ”‡
–ƒ‰—Žƒ”†‹•–”‹„—–‹‘Ǥˆƒ
–‘”
‘ˆ ͲǤͷ ƒ† ͲǤ͵Ͳ ƒ› „‡ —•‡† ˆ‘” ƒ–Ǧ”‡•– ƒ† ƒ –‹˜‡
‘†‹–‹‘•ǡ”‡•’‡
–‹˜‡Ž›Ǥ Š‡ ˜‡”–‹
ƒŽ –”ƒˆˆ‹

•—”
Šƒ”‰‡ƒ›„‡†‡–‡”‹‡†„›–Š‡•–”—
–—”ƒŽ†‡•‹‰‡”ǤŠ‡•–”—
–—”ƒŽ†‡•‹‰‡”•Š‘—Ž†
‘–ƒ
–
–Š‡ ‰‡‘–‡
Š‹
ƒŽ ‡‰‹‡‡” ˆ‘” ƒ› ”‡“—‹”‡† ‰‡‘–‡
Š‹
ƒŽ ‹’—– ‹ ‡•–‹ƒ–‹‰ ƒ› ƒ’’Ž‹
ƒ„Ž‡
•—”
Šƒ”‰‡Ž‘ƒ†•Ǥ


ˆ”‡–ƒ‹‹‰™ƒŽŽ•‰”‡ƒ–‡”–Šƒ͸ˆ‡‡–‹Š‡‹‰Š–ƒ”‡’”‘’‘•‡†ǡ –Š‡ ”‡–ƒ‹‹‰™ƒŽŽ†‡•‹‰‡”•Š‘—Ž†

‘–ƒ
––Š‡‰‡‘–‡
Š‹
ƒŽ‡‰‹‡‡”ˆ‘”•’‡
‹ˆ‹
•‡‹•‹
Žƒ–‡”ƒŽ‡ƒ”–Š’”‡••—”‡‹
”‡‡–•„ƒ•‡†‘
–Š‡
‘ˆ‹‰—”ƒ–‹‘‘ˆ–Š‡’Žƒ‡†”‡–ƒ‹‹‰™ƒŽŽ•–”—
–—”‡•Ǥ

 ‘ ‹ Ž „ ‡ ƒ ” ‹  ‰ ƒ  † Ž ƒ – ‡ ” ƒ Ž ” ‡ • ‹ • – ƒ  ‡ ȋ ˆ ” ‹
– ‹ ‘  
‘ ‡ ˆ ˆ ‹
‹ ‡  – ƒ  † ’ƒ••‹˜‡ ”‡•‹•–ƒ
‡Ȍ ƒ”‡ ’”‘˜‹†‡† ‹
‡
–‹‘ͷǤ͵ǤͷǤ




Project No. 21138-01 Page 22 July 15, 2021

5.5 FencesandFreestandingWalls

 • – Š ‡ ‹ ”  ƒ  ‡ ‹  † ‹
ƒ – ‡ • ǡ ˆ ” ‡ ‡ • – ƒ  † ‹  ‰ ™ ƒ Ž Ž • ƒ ” ‡ – Š ‘ • ‡ ™ ƒ Ž Ž •  ‘ – † ‡ • ‹ ‰  ‡ † – ‘ ” ‡ – ƒ ‹  • ‘ ‹ Ž ƒ  † Ȁ ‘ ”  ™ƒ–‡”Ǥ‘”‡†—
‡–Š‡’‘–‡–‹ƒŽˆ‘”—•‹‰Š–Ž›
”ƒ
•ǡ†—‡–‘†‹ˆˆ‡”‡–‹ƒŽ•‡––Ž‡‡–ǡ‡š’ƒ•‹˜‡•‘‹Ž•
‘”’‘••‹„Ž‡•Ž‘’‡
”‡‡’ǡ™‡”‡
‘‡†–Š‡‹
Ž—•‹‘‘ˆ
‘•–”—
–‹‘Œ‘‹–•ƒ–ƒƒš‹—‘ˆʹͲ
ˆ‡‡– ‘Ǧ
‡–‡”Ǥ Š‹• •’ƒ
‹‰ ƒ› „‡ ƒŽ–‡”‡† „› –Š‡ •–”—
–—”ƒŽ ‡‰‹‡‡” „ƒ•‡† —’‘ –Š‡ ™ƒŽŽ
”‡‹ˆ‘”
‡‡–Ǥ
ˆ–Š‡•‘‹ŽǦ‘‹•–—”‡
‘–‡–„‡Ž‘™–Š‡™ƒŽŽ ˆ‘—†ƒ–‹‘˜ƒ”‹‡••‹‰‹ˆ‹
ƒ–Ž›ǡ•‘‡
™ƒŽŽ ‘˜‡‡– •Š‘—Ž† „‡ ‡š’‡
–‡†Ǥ
‘™‡˜‡”ǡ –Š‹• ‘˜‡‡– ‹• —Ž‹‡Ž› –‘
ƒ—•‡ ‘”‡ –Šƒ

‘•‡–‹
 †‹•–”‡••Ǥ ŽŽ‘™ƒ„Ž‡ •‘‹Ž „‡ƒ”‹‰ ˜ƒŽ—‡• ˆ‘” ™ƒŽŽ ˆ‘‘–‹‰ †‡•‹‰ ƒ”‡ ’”‘˜‹†‡† ‹ ‡ –‹‘
ͷǤ͵ǤͷǤ

††‹–‹‘ƒŽŽ›ǡ ˆ‘” ˆ‡
‡• ‡ƒ” –Š‡ –‘’•Ǧ‘ˆǦ•Ž‘’‡•ǡ –Š‡ ˆ‡
‡ †‡•‹‰‡” •Š‘—Ž† ‡‰‹‡‡” –Š‡

‘•–”—
–‹‘ ‘ˆ –Š‡ ˆ‡
‡ –‘ „‡ ƒ• ˆŽ‡š‹„Ž‡ ƒ• ’‘••‹„Ž‡ ™Š‹Ž‡ •–‹ŽŽ ƒ‹–ƒ‹‹‰ ‹–‡‰”‹–›Ǥ ›’‹ ƒŽ
†‡•‹‰ˆ‡ƒ–—”‡••Š‘—Ž†‹
Ž—†‡•—
Š‹–‡•ƒ••Ž‹’
‘—’Ž‹‰•ƒ––Š‡Œ—
–‹‘‘ˆ–‘’Ǧ‘ˆǦ•Ž‘’‡ˆ‡
‡•
ƒ†ˆ‡
‡•Ȁ™ƒŽŽ•’‡”’‡†‹
—Žƒ”–‘–Š‡•Ž‘’‡Ǥ



5.6 SubsurfaceWaterInfiltration

‡
‡– ”‡‰—Žƒ–‘”›
Šƒ‰‡• ƒ†ƒ–‡ –Šƒ– •–‘” ™ƒ–‡” „‡ ‹ˆ‹Ž–”ƒ–‡† ”ƒ–Š‡” –Šƒ †‹• Šƒ”‰‡† ˜‹ƒ

‘˜‡–‹‘ƒŽ•–‘”†”ƒ‹ƒ‰‡•›•–‡•ǡˆ‘”•‹–‡•—†‡”Žƒ‹„›ƒ’’”‘’”‹ƒ–‡•‘‹Ž•Ǥ –•Š‘—Ž†„‡‘–‡†
–Šƒ–‹–‡–‹‘ƒŽŽ›‹ˆ‹Ž–”ƒ–‹‰•–‘”™ƒ–‡”
‘ˆŽ‹
–•™‹–Š–Š‡‰‡‘–‡
Š‹
ƒŽ‡‰‹‡‡”‹‰‘„Œ‡
–‹˜‡‘ˆ
†‹”‡
–‹‰•—”ˆƒ
‡™ƒ–‡”ƒ™ƒ›ˆ”‘•–”—
–—”‡•ƒ†‹’”‘˜‡‡–•ǤŠ‡‰‡‘–‡
Š‹
ƒŽ•–ƒ„‹Ž‹–›ƒ†
‹–‡‰”‹–›‘ˆ–Š‡’”‘Œ‡
–•‹–‡‹•”‡Ž‹ƒ–—’‘ƒ’’”‘’”‹ƒ–‡Ž›Šƒ†Ž‹‰•—”ˆƒ
‡™ƒ–‡”Ǥ


 ‰‡‡”ƒŽǡ –Š‡ ˜ƒ•– ƒŒ‘”‹–› ‘ˆ ‰‡‘–‡
Š‹
ƒŽ †‹•–”‡•• ‹••—‡• ƒ”‡ †‹”‡
–Ž› ”‡Žƒ–‡† –‘ ‹’”‘’‡”
†”ƒ‹ƒ‰‡Ǥ‹•–”‡••‹–Š‡ˆ‘”‘ˆ‘˜‡‡–‘ˆˆ‘—†ƒ–‹‘•ƒ†‘–Š‡”‹’”‘˜‡‡–• ‘—Ž†‘

—”
ƒ•ƒ”‡•—Ž–‘ˆ•‘‹Ž•ƒ–—”ƒ–‹‘ƒ†Ž‘••‘ˆ•‘‹Ž•—’’‘”–‘ˆˆ‘— †ƒ–‹‘•ƒ†’ƒ˜‡‡–•ǡ•‡––Ž‡‡–ǡ

‘ŽŽƒ’•‡ǡ ‹–‡”ƒŽ •‘‹Ž ‡”‘•‹‘ǡ ƒ†Ȁ‘” ‡š’ƒ•‹‘Ǥ ††‹–‹‘ƒŽŽ› ǡ ‘ˆˆǦ•‹–‡ ’”‘’‡”–‹‡• ƒ† ‹’”‘˜‡‡–•ƒ›„‡•—„Œ‡
–‡†–‘•‡‡’•ǡ•’”‹‰•ǡ•Ž‘’‡‹•–ƒ„‹Ž‹–›ǡ‘˜‡‡–•‘ˆˆ‘—†ƒ–‹‘•‘” ‘–Š‡” ‹’ƒ
–• ƒ• ƒ ”‡•—Ž– ‘ˆ ™ƒ–‡” ‹ˆ‹Ž–”ƒ–‹‘ ƒ† ‹‰”ƒ–‹‘Ǥ ˆ‹Ž–”ƒ–‡† ™ƒ–‡” ƒ› ‡–‡”
—  † ‡ ” ‰ ” ‘ —  † — – ‹ Ž ‹ – › ’ ‹ ’ ‡ œ ‘  ‡ • ƒ  † ‹ ‰ ” ƒ – ‡ ƒ Ž ‘  ‰ – Š ‡ ’ ‹ ’ ‡ „ ƒ  ˆ‹ŽŽǡ ’‘–‡–‹ƒŽŽ› ‹’ƒ
–‹‰ ‘–Š‡”
‹’”‘˜‡‡–•Ž‘
ƒ–‡†ˆƒ”ƒ™ƒ›ˆ”‘–Š‡’‘‹–‘ˆ‹ˆ‹Ž–”ƒ–‹‘Ǥ

†‡“—ƒ–‡ †‹•–ƒ
‡• •Š‘—Ž† „‡ ƒ‹–ƒ‹‡† „‡–™‡‡ ‹ˆ‹Ž–”ƒ–‹‘ Ž‘
ƒ–‹‘• ƒ† •–”—
–—”‡•Ǥ Š‡
‹˜‡”– ‘ˆ ƒ› •–‘” ™ƒ–‡” ‹ˆ‹Ž–”ƒ–‹‘ •›•–‡ •Š‘—Ž† „‡ •‡– „ƒ  ƒ ‹‹— ‘ˆ ͳͷ ˆ‡‡– ˆ”‘
„—‹Ž†‹‰•–”—
–—”‡•ƒ†‘—–•‹†‡ƒͳǣͳ’Žƒ‡†”ƒ™—’ˆ”‘–Š‡„‘––‘‘ˆƒ†Œƒ ‡–ˆ‘—†ƒ–‹‘•Ǥ

ƒ•‡†‘–Š‡”‡•—Ž–•‘ˆ‘—”ˆ‹‡Ž†‹ˆ‹Ž–”ƒ–‹‘–‡•–‹‰–Š‡‘„•‡ ”˜‡†‹ˆ‹Ž–”ƒ–‹‘”ƒ–‡ȋ‘–‹ Ž—†‹‰
”‡“—‹”‡†ˆƒ
–‘”•‘ˆ•ƒˆ‡–›ˆ‘”†‡•‹‰Ȍˆ‘”
Ǧͳǡ
Ǧʹǡƒ†
Ǧ͵ƒ”‡’”‡•‡–‡†„‡Ž‘™Ǥ








Project No. 21138-01 Page 23 July 15, 2021
TABLE4

SummaryofFieldPercolationTesting

Infiltration
TestLocation
PercolationRate*
(inch/hr.)

Ǧͳ ͲǤͲʹ

Ǧʹ ͲǤͲͶ

Ǧ͵ ͲǤͲʹ
ȗ‘”ƒŽ‹œ‡†–‘‡Ǧ‹‡•‹‘ƒŽ Ž‘™ǡ†‘‡•‘–‹
Ž—†‡ƒ› ƒ
–‘”‘ˆƒˆ‡–›Ǥ


TABLE5

InfiltrationFactorsofSafety(SD,2020)

SuitabilityAssessment Factors ofSafety
Consideration Weight Factor Value Product

ˆ‹Ž–”ƒ–‹‘‡•–‹‰‡–Š‘† ͲǤʹͷ ʹ ͲǤͷͲ
‘‹Ž‡š–—”‡Žƒ•• ͲǤʹͷ ͵ ͲǤ͹ͷ
‘‹Žƒ”‹ƒ„‹Ž‹–› ͲǤʹͷ ͳ ͲǤʹͷ
‡’–Š–‘

”‘—†™ƒ–‡”Ȁ„•–”—
–‹‘ ͲǤʹͷ ʹ ͲǤͷͲ
SuitabilityAssessmentSafetyFactor(SA) 2
Design FactorsofSafety
”‡–”‡ƒ–‡– ͲǤͷͲ ‘„‡‡Ž‡
–‡†„›
‡•‹‰‡” 
‡•‹Ž‹‡
› ͲǤʹͷ ‘„‡‡Ž‡
–‡†„›
‡•‹‰‡” 
‘’ƒ
–‹‘ ͲǤʹͷ ‘„‡‡Ž‡
–‡†„›
‡•‹‰‡” 
SuitabilityAssessmentSafetyFactor(SA) TBD


Š‡ˆƒ
–‘”‘ˆ•ƒˆ‡–›—•‡†–‘†‡–‡”‹‡–Š‡†‡•‹‰‹ˆ‹Ž–”ƒ–‹‘ ”ƒ–‡‹•†‡–‡”‹‡†„›—Ž–‹’Ž›‹‰ –Š‡
ƒŽ
—Žƒ–‡†•—‹–ƒ„‹Ž‹–›ƒ••‡••‡–ˆƒ
–‘”‘ˆ•ƒˆ‡–›‘ˆʹǤͲͲ„›–Š‡†‡•‹‰ˆƒ
–‘”‘ˆ•ƒˆ‡–›™Š‹
Š
‹•–‘„‡†‡–‡”‹‡†„›–Š‡‹ˆ‹Ž–”ƒ–‹‘•›•–‡†‡•‹‰‡”ǤŠ‡†‡ •‹‰‹ˆ‹Ž–”ƒ–‹‘”ƒ–‡‹•–Š‡”‡„› ‡“—ƒŽ–‘–Š‡‘„•‡”˜‡†‹ˆ‹Ž–”ƒ–‹‘”ƒ–‡ȋ‹
Š’‡”Š‘—”Ȍ†‹˜‹†‡†„›–Š‡’”‘†—
–‘ˆʹǤͲ–‹‡•–Š‡

ƒŽ
—Žƒ–‡††‡•‹‰ˆƒ
–‘”‘ˆ•ƒˆ‡–›ǤŠ‡
‘„‹‡†ˆƒ
–‘”‘ˆ•ƒˆ‡ –›—•–„‡ƒ‹‹—‘ˆʹǤͲ„—–
‘–‰”‡ƒ–‡”–ŠƒͻǤͲǤ

Š‡•‡˜ƒŽ—‡•ƒ”‡ˆ‘”ƒ–‹˜‡ƒ–‡”‹ƒŽ•‘Ž›ƒ†ƒ”‡‘––‘„‡—–‹Ž‹œ‡†ˆ‘” ‘’ƒ
–‡†ˆ‹ŽŽǤ
ˆ‹Ž–”ƒ–‹‘
•ŠƒŽŽ ‘– „‡ ’‡”‹––‡† †‹”‡
–Ž› ‘ ‘” ‹–‘
‘’ƒ
–‡† ˆ‹ŽŽ •‘‹Ž•Ǥ Š‡ ‹ˆ‹Ž–”ƒ–‹‘ ˜ƒŽ—‡• ’”‘˜‹†‡† ƒ”‡„ƒ•‡†‘
Ž‡ƒ™ƒ–‡”ƒ†–Š‹•”‡“—‹”‡•–Š‡”‡‘˜ƒŽ‘ˆ–”ƒ•Š ǡ†‡„”‹•ǡ•‘‹Ž’ƒ”–‹ Ž‡•ǡ‡–
Ǥǡƒ†
‘Ǧ‰‘‹‰ ƒ‹–‡ƒ
‡Ǥ ˜‡” –‹‡ǡ •‹Ž–ƒ–‹‘ǡ ’Ž—‰‰‹‰ǡ ƒ†
Ž‘‰‰‹  ‰ ‘ ˆ – Š ‡ • › • – ‡   ƒ › ” ‡ † —
‡ 
–Š‡ ‹ˆ‹Ž–”ƒ–‹‘ ”ƒ–‡ ƒ† •—„•‡“—‡–Ž› ”‡†—
‡ –Š‡ ‡ˆˆ‡
–‹˜‡‡•• ‘ˆ –Š‡ ‹ˆ‹Ž–”ƒ–‹‘ •›•–‡Ǥ
–
•Š‘—Ž†„‡‘–‡†–Šƒ–‡–Š‘†•–‘’”‡˜‡––Š‹••ŠƒŽŽ„‡–Š‡•‘Ž‡ ”‡•’‘•‹„‹Ž‹–›‘ˆ–Š‡‹ˆ‹Ž–”ƒ–‹‘ †‡•‹‰‡”ƒ†ƒ”‡‘––Š‡’—”˜‹‡™‘ˆ–Š‡‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ– Ǥ
ˆƒ†‡“—ƒ–‡‡ƒ•—”‡•
ƒ‘–
„‡‹
‘”’‘”ƒ–‡†‹–‘–Š‡†‡•‹‰ƒ†ƒ‹–‡ƒ
‡‘ˆ–Š‡•›•–‡ǡ–Š‡–Š‡‹ˆ‹Ž–”ƒ–‹‘”ƒ–‡•ƒ›

Project No. 21138-01 Page 24 July 15, 2021
‡‡†–‘„‡ˆ—”–Š‡””‡†—
‡†ǤŠ‡•‡ƒ†‘–Š‡”ˆƒ
–‘”••Š‘—Ž†„‡
‘•‹†‡”‡†‹•‡Ž‡
–‹‰ƒ†‡•‹‰
‹ˆ‹Ž–”ƒ–‹‘”ƒ–‡Ǥ



5.7 PreliminaryPavementSection

Š‡ ˆ‘ŽŽ‘™‹‰ ’”‘˜‹•‹‘ƒŽ ‹‹— ƒ•’ŠƒŽ–
‘
”‡–‡ ȋȌ ’ƒ˜‡‡– •‡
–‹‘• ƒ”‡ ’”‘˜‹†‡† ‹
 ƒ „ Ž ‡ ͸ „ ƒ • ‡ † ‘  ƒ ’ ” ‡ Ž ‹  ‹  ƒ ” ›  Ǧ ˜ ƒ Ž — ‡ ‘ ˆ ʹ Ͳ ˆ ‘ ”  ” ƒ ˆ ˆ ‹ 
 † ‹
‡• ȋ
Ȍ ‘ˆ ͷ –Š”‘—‰Š ͹Ǥ Š‡•‡
”‡
‘‡†ƒ–‹‘••Š‘—Ž†„‡
‘ˆ‹”‡†™‹–ŠǦ˜ƒŽ—‡–‡•–‹‰‘ˆ”‡’”‡•‡–ƒ–‹˜‡‡ƒ”Ǧ•—”ˆƒ ‡•‘‹Ž•
ƒ––Š‡
‘’Ž‡–‹‘‘ˆ‡ƒ”–Š™‘”Ǥ ‹ƒŽ’ƒ˜‡‡–•‡
–‹‘••Š‘—Ž†„‡
‘ˆ‹”‡†„›–Š‡’”‘Œ‡
–
‹˜‹Ž
‡‰‹‡‡”„ƒ•‡†—’‘–Š‡ˆ‹ƒŽ†‡•‹‰”ƒˆˆ‹

†‡šǤ‡–‡”‹ƒ–‹‘‘ˆ–Š‡
‹•‘––Š‡’—”˜‹‡™‘ˆ
–Š‡‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ–Ǥ
ˆ”‡“—‡•–‡†ǡ

‡‘–‡
Š‹
ƒŽ™‹ŽŽ’”‘˜‹†‡•‡
–‹‘•ˆ‘”ƒŽ–‡”ƒ–‡

˜ƒŽ—‡•Ǥ

TABLE6

PavingSectionOptions

AssumedTrafficIndex ͷǤͲ ͷǤͲ ͹ǤͲ
ACThickness ͶǤͲ‹
Š‡• ͶǤͲ‹
Š‡• ͶǤͲ
AggregateBaseThickness ͷǤͲ‹
Š‡• ͺǤͷ‹
Š‡• ͳʹǤͲ‹
Š‡•


Š‡–Š‹
‡••‡••Š‘™ƒ”‡ˆ‘”‹‹—–Š‹
‡••‡•Ǥ

”‡ƒ•‹‰– Š‡–Š‹
‡••‘ˆƒ›‘”ƒŽŽ‘ˆ
–Š‡ ƒ„‘˜‡ Žƒ›‡”• ™‹ŽŽ ”‡†—
‡ –Š‡ Ž‹‡Ž‹Š‘‘† ‘ˆ –Š‡ ’ƒ˜‡‡– ‡š’‡”‹‡
‹‰ †‹•–”‡•• †—”‹‰ ‹–•
•‡”˜‹
‡ Ž‹ˆ‡Ǥ Š‡ ƒ„‘˜‡ ”‡
‘‡†ƒ–‹‘• ƒ”‡ „ƒ•‡† ‘ –Š‡ ƒ••—’ –‹‘ –Šƒ– ’”‘’‡” ƒ‹–‡ƒ
‡ƒ†‹””‹‰ƒ–‹‘‘ˆ–Š‡ƒ”‡ƒ•ƒ†Œƒ
‡––‘–Š‡”‘ƒ†™ƒ› ™‹ŽŽ‘

—”–Š”‘—‰Š–Š‡†‡•‹‰
Ž‹ˆ‡‘ˆ–Š‡’ƒ˜‡‡–Ǥ ƒ‹Ž—”‡–‘ƒ‹–ƒ‹ƒ’”‘’‡”ƒ‹–‡ƒ ‡ ƒ†Ȁ‘”‹””‹‰ƒ–‹‘’”‘‰”ƒƒ›
Œ‡‘’ƒ”†‹œ‡–Š‡‹–‡‰”‹–›‘ˆ–Š‡’ƒ˜‡‡–Ǥ

ƒ”–Š™‘””‡
‘‡†ƒ–‹‘•”‡‰ƒ”†‹‰ƒ‰‰”‡‰ƒ–‡„ƒ•‡ƒ†•—„‰”ƒ†‡ƒ”‡’”‘˜‹†‡†‹–Š‡‡ –‹‘
ͷǤͳƒ†–Š‡”‡Žƒ–‡†•—„Ǧ•‡
–‹‘•‘ˆ–Š‹•”‡’‘”–Ǥ



5.8 CorrosivitytoConcreteandMetal

 Ž – Š ‘ — ‰ Š  ‘ – 
‘ ” ” ‘ • ‹ ‘  ‡  ‰ ‹  ‡ ‡ ” • ȋ 
 
‡ ‘ – ‡
Š  ‹
ƒ Ž ‹ •  ‘ – ƒ 
‘ ””‘•‹‘
‘•—Ž–ƒ–Ȍǡ •‡˜‡”ƒŽ
‰‘˜‡”‹‰ƒ‰‡
‹‡• ‹‘—–Š‡”ƒŽ‹ˆ‘”‹ƒ”‡“—‹”‡ –Š‡‰‡‘–‡
Š‹
ƒŽ
‘•—Ž–ƒ––‘†‡–‡”‹‡–Š‡

‘ ” ” ‘ • ‹ ‘  ’ ‘ – ‡  – ‹ ƒ Ž ‘ ˆ • ‘ ‹ Ž • – ‘ „ — ” ‹ ‡ †  ‘ 
” ‡ – ‡ ƒ  †  ‡ – ƒ Ž ˆ ƒ
‹ Ž‹–‹‡•Ǥ ‡ –Š‡”‡ˆ‘”‡ ’”‡•‡– –Š‡
”‡•—Ž–•‘ˆ‘—”–‡•–‹‰™‹–Š”‡‰ƒ”†–‘
‘””‘•‹‘ˆ‘”–Š‡—•‡‘ˆ –Š‡
Ž‹‡–ƒ†‘–Š‡”
‘•—Ž–ƒ–•ǡƒ•
–Š‡›†‡–‡”‹‡‡
‡••ƒ”›Ǥ

”‡Ž‹‹ƒ”›
‘””‘•‹‘ –‡•–‹‰ ‹†‹
ƒ–‡† ƒ •‘Ž—„Ž‡ •—Žˆƒ–‡
‘–‡ – ‘ˆ ƒ’’”‘š‹ƒ–‡Ž› ͲǤͲͳͻ
’‡”
‡–ǡ
ŠŽ‘”‹†‡
‘–‡– ‘ˆ ͳͶͻ ’ƒ”–• ’‡” ‹ŽŽ‹‘ ȋ’’Ȍǡ ’
 ˜ƒŽ — ‡ ‘ ˆ ͹ Ǥ ͻ ͻ ǡ ƒ  † ƒ  ‹  ‹  —  
”‡•‹•–‹˜‹–›˜ƒŽ—‡‘ˆ͹ͶͲ‘ŠǦ
Ǥ‘‹Ž•ƒ”‡
‘•‹†‡”‡†
‘””‘•‹˜‡ –‘•–”—
–—”ƒŽ‡Ž‡‡–•‹ˆ–Š‡’

‹•ͷǤͷ‘”Ž‡••ǡ‘”–Š‡
ŠŽ‘”‹†‡
‘
‡–”ƒ–‹‘‹•ͷͲͲ’’‘”‰”‡ ƒ–‡”ǡ‘”–Š‡•—Žˆƒ–‡
‘
‡–”ƒ–‹‘
‹•ʹǡͲͲͲ’’ȋͲǤʹ’‡”
‡–Ȍ‘”‰”‡ƒ–‡”ȋƒŽ–”ƒ•ǡʹͲʹͳȌǤ

ƒ•‡† ‘ Žƒ„‘”ƒ–‘”› •—Žˆƒ–‡ –‡•– ”‡•—Ž–•ǡ –Š‡ ‡ƒ”Ǧ•—”ˆƒ ‡ •‘‹Ž• Šƒ˜‡ ƒ •‡˜‡”‹–›
ƒ–‡‰‘”‹œƒ–‹‘ ‘ˆ
Dz‘– ’’Ž‹
ƒ„Ž‡dz ƒ† ƒ”‡ †‡•‹‰ƒ–‡† –‘ ƒ
Žƒ•• DzͲdz ’‡” 
 ͵ͳͺǡ ƒ„Ž‡ ͶǤʹǤͳ ™‹–Š ”‡•’‡
– –‘

Project No. 21138-01 Page 25 July 15, 2021
•—Žˆƒ–‡•Ǥ ‘
”‡–‡ ‹ †‹”‡
–
‘–ƒ
– ™‹–Š –Š‡ ‘•‹–‡ •‘‹Ž•
ƒ„‡ †‡•‹‰‡† ƒ

‘”†‹‰ –‘ 
 ͵ͳͺǡ
‡
–‹‘ ͶǤ͵ —•‹‰ –Š‡ DzͲdz •—Žˆƒ–‡
Žƒ••‹ˆ‹
ƒ–‹‘Ǥ Š‹• —•– „‡  ˜‡”‹ˆ‹‡† „ƒ•‡† ‘ ƒ•Ǧ‰”ƒ†‡†

‘†‹–‹‘•Ǥ

–
‘’Ž‡–‹‘ ‘ˆ ‰”ƒ†‹‰ǡ ƒ††‹–‹‘ƒŽ –‡•–‹‰ ™‹ŽŽ „‡ ”‡“—‹”‡† –‘ ‘ˆ‹” –Š‡
Šƒ”ƒ
–‡”‹•–‹
• ‘ˆ
–Š‡ ˆ‹ŽŽ ƒ–‡”‹ƒŽ• ‹
Ž—†‹‰ ‡š’ƒ •‹‘ ’‘–‡–‹ƒŽ ƒ†
‘””‘•‹˜‹– ›
Šƒ”ƒ
–‡”‹•–‹
•Ǥ Š‹Ž‡ 


‡‘–‡
Š‹
ƒŽ†‘‡•‘–’”‘˜‹†‡”‡
‘‡†ƒ–‹‘•ˆ‘”
‘””‘•‹‘ǡ„ƒ•‡†‘‘—”‡š’‡”‹‡
‡–›’‹
ƒŽ
‹–‹‰ƒ–‹‘‡ƒ•—”‡•‹
Ž—†‡‹
”‡ƒ•‡†
‘’”‡••‹˜‡•–”‡‰–Šˆ‘”•–”—
–—”ƒŽ
‘
”‡–‡ǡ†‡
”‡ƒ•‡†
™ƒ–‡”Ǧ–‘Ǧ
‡‡–”ƒ–‹‘ˆ‘”•–”—
–—”ƒŽ
‘
”‡–‡ƒ†Ȁ‘”‡
ƒ’•—Žƒ–‹‘‘ˆ’‘•–Ǧ–‡•‹‘‡†
ƒ„Ž‡•Ǥ

‘””‘•‹‘
‘•—Ž–ƒ– •Š‘—Ž† ’”‘˜‹†‡ ”‡
‘‡†ƒ–‹‘• ˆ‘” ‹–‹‰ƒ–‹ ‘  ‘ ˆ 
‘ ” ” ‘ • ‹ ˜ ‹ – › „ ƒ • ‡ † ‘  
Žƒ„‘”ƒ–‘”›–‡•–‹‰”‡•—Ž–•‘ˆ‡ƒ”Ǧ•—”ˆƒ
‡•‘‹Ž•ƒ–
‘’Ž‡–‹‘‘ˆ‰”ƒ†‹‰Ǥ


5.9 NonstructuralConcreteFlatwork

‘
”‡–‡ ˆŽƒ–™‘” ȋ•—
Š ƒ• ™ƒŽ™ƒ›•ǡ „‹
›
Ž‡ –”ƒ‹Ž•ǡ ’ƒ–‹‘ •Žƒ„• ǡ ‡ –
Ǥ Ȍ Š ƒ • ƒ Š ‹ ‰ Š ’ ‘ – ‡  – ‹ ƒ Ž ˆ ‘ ” 

”ƒ
‹‰ †—‡ –‘
Šƒ‰‡• ‹ •‘‹Ž ˜‘Ž—‡ ”‡Žƒ–‡† –‘ •‘‹ŽǦ‘‹•–—”‡ˆ Ž — – — ƒ – ‹ ‘  • Ǥ  ‘ ” ‡ † —
‡ – Š ‡ 
’‘–‡–‹ƒŽ ˆ‘” ‡š
‡••‹˜‡
”ƒ
‹‰ ƒ† Ž‹ˆ–‹‰ǡ
‘
”‡–‡ ƒ› „‡ †‡•‹‰‡† ‹ ƒ

‘”†ƒ
‡ ™‹–Š –Š‡
‹‹—‰—‹†‡Ž‹‡•‘—–Ž‹‡†‹ƒ„Ž‡͹ǤŠ‡•‡‰—‹†‡Ž‹‡•™‹ŽŽ”‡†— ‡–Š‡’‘–‡–‹ƒŽˆ‘”‹””‡‰—Žƒ”

” ƒ
 ‹  ‰ ƒ  † ’ ” ‘  ‘ – ‡ 
” ƒ
 ‹  ‰ ƒ Ž ‘  ‰ 
‘  • – ” —
– ‹ ‘  Œ ‘ ‹  – • ǡ „ — – ™ ‹ Ž Ž  ‘ – ‡ Ž ‹  ‹  ƒ – ‡ ƒ Ž Ž  ” ƒ
 ‹  ‰ ‘ ” 
Ž ‹ ˆ – ‹  ‰ Ǥ  Š ‹
 ‡  ‹  ‰ – Š ‡ 
‘ 
” ‡ – ‡ ƒ  † Ȁ ‘ ” ƒ † † ‹  ‰ ƒ † † ‹ – ‹ ‘  ƒ Ž ” ‡ ‹ ˆ‘” ‡‡– ™‹ŽŽ ˆ—”–Š‡” ”‡†—
‡

‘•‡–‹
†‹•–”‡••Ǥ

TABLE7

NonstructuralConcreteFlatworkforMediumExpansionPotential 

‘‡‘™‡”
‹†‡™ƒŽ•

”‹˜ƒ–‡”‹˜‡•

ƒ–‹‘•Ȁ–”›™ƒ
›•
‹–›‹†‡™ƒŽ—”„
ƒ†
—––‡”•
‹‹—
Š‹
‡••ȋ‹ǤȌ

Ͷȋ‘‹ƒŽȌ

ͷȋˆ—ŽŽȌ

ͷȋˆ—ŽŽȌ
‹–›Ȁ‰‡
›
–ƒ†ƒ”†

”‡•ƒ–—”ƒ–‹‘
‡–†‘™ ”‡•‘ƒ–‘ͳʹ
‹
Š‡•
”‡•‘ƒ–‘ͳʹ
‹
Š‡•
‹–›Ȁ‰‡
›
–ƒ†ƒ”†

‡‹ˆ‘”
‡‡–


‘Ǥ͵ƒ–ʹͶ
‹
Š‡•‘Ǧ

‡–‡”•
‘Ǥ͵ƒ–ʹͶ
‹
Š‡•‘Ǧ

‡–‡”•
‹–›Ȁ‰‡
›
–ƒ†ƒ”†
Š‹
‡‡††‰‡
ȋ‹ǤȌ



ͺšͺ


‹–›Ȁ‰‡
›
–ƒ†ƒ”†


”ƒ
‘–”‘Ž

‘‹–•
Ī
—–‘”†‡‡’
‘’‡–‘‘ŽŒ‘‹–
–‘ƒ‹‹—
‘ˆͳȀ͵–Š‡

‘
”‡–‡
–Š‹
‡••
Ī
—–‘”†‡‡’
‘’‡–‘‘ŽŒ‘‹–
–‘ƒ‹‹—‘ˆ
ͳȀ͵–Š‡
‘
”‡–‡
–Š‹
‡••
Ī
—–‘”†‡‡’
‘’‡–‘‘ŽŒ‘‹–
–‘ƒ‹‹—‘ˆ
ͳȀ͵–Š‡
‘
”‡–‡
–Š‹
‡••


‹–›Ȁ‰‡
›
–ƒ†ƒ”†

ƒš‹—
‘‹–
’ƒ
‹‰

ͷˆ‡‡–
ͳͲˆ‡‡–‘”
“—ƒ”–‡”
—–
™Š‹
Š‡˜‡”‹•

Ž‘•‡”

͸ˆ‡‡–

‹–›Ȁ‰‡
›
–ƒ†ƒ”†
‰‰”‡‰ƒ–‡ƒ•‡
Š‹
‡••ȋ‹ǤȌ





ʹ
‹–›Ȁ‰‡
›
–ƒ†ƒ”†

Project No. 21138-01 Page 26 July 15, 2021

‘ ”‡†—
‡ –Š‡ ’‘–‡–‹ƒŽ ˆ‘” †”‹˜‡™ƒ›• –‘ •‡’ƒ”ƒ–‡ ˆ”‘ –Š‡ ‰ƒ”ƒ‰‡ •Žƒ„ǡ –Š‡ „—‹Ž†‡” ƒ› ‡Ž‡ – –‘
‹•–ƒŽŽ†‘™‡Ž•–‘–‹‡–Š‡•‡–™‘‡Ž‡‡–•–‘‰‡–Š‡”Ǥ‹‹Žƒ”Ž›ǡˆ—–—”‡Š‘‡‘™‡”••Š‘—Ž† ‘•‹†‡”–Š‡
—•‡‘ˆ†‘™‡Ž•–‘
‘‡
–ˆŽƒ–™‘”–‘–Š‡ˆ‘—†ƒ–‹‘Ǥ



5.10 ControlofSurfaceWaterandDrainageControl

‘•‹–‹˜‡†”ƒ‹ƒ‰‡‘ˆ•—”ˆƒ
‡™ƒ–‡”ƒ™ƒ›ˆ”‘•–”—
–—”‡•‹•˜‡”›‹’‘”–ƒ–Ǥƒ–‡”•Š‘—Ž†‘–„‡
ƒŽŽ‘™‡† –‘ ’‘† ƒ†Œƒ
‡– –‘ „—‹Ž†‹‰• ‘” –‘ ˆŽ‘™ ˆ”‡‡Ž› †‘™ ƒ‰ ” ƒ † ‡ † • Ž ‘ ’ ‡ Ǥ  • ƒ ‰ ‡  ‡ ” ƒ Ž  ‰—‹†‡Ž‹‡ǡ’‘•‹–‹˜‡†”ƒ‹ƒ‰‡ƒ›„‡ƒ

‘’Ž‹•Š‡†„›’”‘˜‹†‹‰†”ƒ‹ƒ‰‡ƒ™ƒ›ˆ”‘„—‹Ž†‹‰•ƒ–ƒ ‰”ƒ†‹‡–‘ˆƒ–Ž‡ƒ•–ͷ’‡”
‡–ˆ‘”‡ƒ”–Š‡•—”ˆƒ
‡•ˆ‘”ƒ†‹•–ƒ
‡‘ˆƒ–Ž‡ƒ•–ͳͲˆ‡‡–ƒ™ƒ›ˆ”‘–Š‡
ˆƒ
‡‘ˆ™ƒŽŽǤ
ˆƒ†‹•–ƒ
‡‘ˆͳͲˆ‡‡–
ƒ‘–„‡ƒ
Š‹‡˜‡†ǡƒƒ Ž–‡”ƒ–‹˜‡‘ˆƒ‰”ƒ†‹‡–‘ˆƒ–Ž‡ƒ•–ͷ
’‡”
‡––‘ƒƒ”‡ƒ†”ƒ‹‘”•™ƒŽ‡Šƒ˜‹‰ƒ‰”ƒ†‹‡–‘ˆʹ’‡” ‡–‹•ƒ

‡’–ƒ„Ž‡ǤŠ‡”‡‡
‡••ƒ”›ǡ
† ” ƒ ‹  ƒ ‰ ‡ ’ ƒ – Š •  ƒ › „ ‡ • Š ‘ ” – ‡  ‡ † „ › — • ‡ ‘ ˆ ƒ ” ‡ ƒ † ” ƒ ‹  • ƒ  †  ‘ Ž Ž ‡
–‘” ’‹’‡•Ǥ ƒ˜‡ ‰—––‡”• ƒ”‡
”‡
‘‡†‡†ƒ†•Š‘—Ž†”‡†—
‡™ƒ–‡”‹ˆ‹Ž–”ƒ–‹‘‹–‘–Š‡•—„‰”ƒ†‡•‘‹Ž•‹ˆ–Š‡†‘™•’‘—–•ƒ”‡ ’”‘’‡”Ž›
‘‡
–‡†–‘ƒ’’”‘’”‹ƒ–‡‘—–Ž‡–•Ǥ

 Ž ƒ  – ‡ ” • ™ ‹ – Š ‘ ’ ‡  „ ‘ – – ‘  • ƒ † Œ ƒ ‡  – – ‘ „ — ‹ Ž † ‹  ‰ • • Š ‘ — Ž † „ ‡ ƒ ˜ ‘ ‹†‡†Ǥ Žƒ–‡”• •Š‘—Ž† ‘– „‡ †‡•‹‰‡†ƒ†Œƒ
‡––‘„—‹Ž†‹‰•—Ž‡••’”‘˜‹•‹‘•ˆ‘”†”ƒ‹ƒ‰‡ǡ•—
Šƒ•
ƒ–
Š„ƒ•‹•ǡŽ‹‡”•ǡƒ†Ȁ‘”
ƒ”‡ƒ†”ƒ‹•ǡƒ”‡ƒ†‡Ǥ˜‡”™ƒ–‡”‹‰—•–„‡ƒ˜‘‹†‡†Ǥ



5.11 ConstructionObservationandTesting

Š‡”‡
‘‡†ƒ–‹‘•’”‘˜‹†‡†‹–Š‹•”‡’‘”–ƒ”‡„ƒ•‡†‘Ž‹‹–‡†•—„•—”ˆƒ ‡‘„•‡”˜ƒ–‹‘•ƒ†
‰‡‘–‡
Š‹
ƒŽ ƒƒŽ›•‹•Ǥ Š‡ ‹–‡”’‘Žƒ–‡† •—„•—”ˆƒ
‡
‘†‹–‹‘• •Š‘—Ž† „‡
Š‡
‡† ‹ –Š‡ ˆ‹‡Ž†
†—”‹‰
‘•–”—
–‹‘„›ƒ”‡’”‡•‡–ƒ–‹˜‡‘ˆ

‡‘–‡
Š‹
ƒŽǤ

‘—†ƒ–‹‘ ’Žƒ•ǡ’”‡
‹•‡‰”ƒ†‹‰’Žƒ•ǡƒ† ˆ‹ƒŽ’”‘Œ‡
–†”ƒ™‹‰••Š‘—Ž†„‡”‡˜‹‡™‡†„› –Š‹•
‘ˆˆ‹
‡ ’”‹‘” –‘
‘•–”—
–‹‘ –‘ ˜‡”‹ˆ› –Šƒ– ‘—” ‰‡‘–‡
Š‹
ƒŽ ”‡
‘‡†ƒ–‹‘• Šƒ˜‡ „‡‡
‹
‘”’‘”ƒ–‡†Ǥ

 ‘•–”—
–‹‘ ‘„•‡”˜ƒ–‹‘ ƒ† –‡•–‹‰ •Š‘—Ž† ƒŽ•‘ „‡ ’‡”ˆ‘”‡† „› –Š‡ ‰‡‘–‡ Š‹
ƒŽ
‘•—Ž–ƒ–
ˆ‘”–Š‡ˆ‘ŽŽ‘™‹‰ǣ

x —”‹‰‰”ƒ†‹‰ƒ
–‹˜‹–‹‡•Ǣ
x —”‹‰—–‹Ž‹–›–”‡
Š„ƒ
ˆ‹ŽŽƒ†
‘’ƒ
–‹‘Ǣ
x —”‹‰”‡–ƒ‹‹‰™ƒŽŽ„ƒ
ˆ‹ŽŽƒ†
‘’ƒ
–‹‘Ǣ
x —”‹‰•—„‰”ƒ†‡’”‘
‡••‹‰ƒ†”‘ƒ†™ƒ›’ƒ˜‡‡–•‡
–‹‘
‘•–”—
–‹‘Ǣ
x ˆ–‡” ’”‡•‘ƒ‹‰ „—‹Ž†‹‰ ’ƒ†• ƒ† ‘–Š‡”
‘
”‡–‡ǦˆŽƒ–™‘” •—„‰ ”ƒ†‡•ǡ ƒ† ’”‹‘” –‘
’Žƒ
‡‡–‘ˆƒ‰‰”‡‰ƒ–‡„ƒ•‡‘”
‘
”‡–‡Ǣ
x ˆ–‡” „—‹Ž†‹‰ ƒ† ™ƒŽŽ ˆ‘‘–‹‰ ‡š
ƒ˜ƒ–‹‘ ƒ† ’”‹‘” –‘ ’Žƒ
‹‰
‘
”‡–‡ ƒ†Ȁ‘”
”‡‹ˆ‘”
‡‡–Ǣƒ†
x Š‡ ƒ› ——•—ƒŽ •‘‹Ž
‘†‹–‹‘• ƒ”‡ ‡
‘—–‡”‡† †—”‹‰ ƒ›
‘•–”—
–‹‘ ‘’‡”ƒ–‹‘
•—„•‡“—‡––‘‹••—ƒ
‡‘ˆ–Š‹•”‡’‘”–Ǥ



Project No. 21138-01 Page 27 July 15, 2021

6.0LIMITATIONS

—” •‡”˜‹
‡• ™‡”‡ ’‡”ˆ‘”‡† —•‹‰ –Š‡ †‡‰”‡‡ ‘ˆ
ƒ”‡ ƒ† •‹ŽŽ‘”†‹ƒ”‹Ž› ‡š‡”
‹•‡†ǡ —†‡” •‹‹Žƒ”

‹”
—•–ƒ
‡•ǡ„›”‡’—–ƒ„Ž‡‡‰‹‡‡”•ƒ†‰‡‘Ž‘‰‹•–•’”ƒ
–‹
‹‰ ‹–Š‹•‘”•‹‹Žƒ”Ž‘
ƒŽ‹–‹‡•Ǥ‘‘–Š‡”
™ƒ””ƒ–›ǡ‡š’”‡••‡†‘”‹’Ž‹‡†ǡ‹•ƒ†‡ƒ•–‘–Š‡
‘
Ž—•‹‘•ƒ †’”‘ˆ‡••‹‘ƒŽƒ†˜‹
‡‹
Ž—†‡†‹–Š‹•
”‡’‘”–ǤŠ‡•ƒ’Ž‡•–ƒ‡ƒ†•—„‹––‡†ˆ‘”Žƒ„‘”ƒ–‘”›–‡•–‹‰ǡ–Š‡‘„•‡”˜ƒ–‹‘•ƒ†‡ǡƒ†–Š‡‹Ǧ•‹–— ˆ‹‡Ž† –‡•–‹‰ ’‡”ˆ‘”‡† ƒ”‡ „‡Ž‹‡˜‡† ”‡’”‡•‡–ƒ–‹˜‡ ‘ˆ –Š‡ ‡–‹”‡ ’”‘Œ‡ –Ǣ Š‘™‡˜‡”ǡ •‘‹Ž ƒ† ‰‡‘Ž‘‰‹


‘†‹–‹‘• ”‡˜‡ƒŽ‡† „› ‡š
ƒ˜ƒ–‹‘ ƒ› „‡ †‹ˆˆ‡”‡– –Šƒ ‘—” ’”‡Ž ‹  ‹  ƒ ” › ˆ ‹  † ‹  ‰ • Ǥ  ˆ – Š ‹ • ‘

— ” • ǡ – Š ‡ 

Šƒ‰‡†
‘†‹–‹‘• —•– „‡ ‡˜ƒŽ—ƒ–‡† „› –Š‡ ’”‘Œ‡
– •‘‹Ž• ‡‰‹ ‡‡” ƒ† ‰‡‘Ž‘‰‹•– ƒ† †‡•‹‰ȋ•Ȍ
ƒ†Œ—•–‡†ƒ•”‡“—‹”‡†‘”ƒŽ–‡”ƒ–‡†‡•‹‰ȋ•Ȍ”‡
‘‡†‡†Ǥ

 Š ‹ • ” ‡ ’ ‘ ” – ‹ • ‹ • • — ‡ † ™ ‹ – Š – Š ‡ —  † ‡ ” • – ƒ  † ‹  ‰ – Š ƒ – ‹ – ‹ • – Š ‡ ” ‡ •’‘•‹„‹Ž‹–› ‘ˆ –Š‡ ‘™‡”ǡ ‘” ‘ˆ Š‹•ȀŠ‡” ”‡’”‡•‡–ƒ–‹˜‡ǡ–‘‡•—”‡–Šƒ––Š‡‹ˆ‘”ƒ–‹‘ƒ†”‡
‘‡†ƒ–‹‘•
‘–ƒ‹‡†Š‡”‡‹ƒ”‡„”‘—‰Š––‘
–Š‡ ƒ––‡–‹‘ ‘ˆ –Š‡ ƒ”
Š‹–‡
– ƒ†Ȁ‘” ’”‘Œ‡
– ‡‰‹‡‡” ƒ† ‹
‘ ” ’ ‘ ” ƒ – ‡ † ‹  – ‘ – Š ‡ ’ Ž ƒ  • ǡ ƒ  † – Š ‡  ‡
‡••ƒ”› •–‡’• ƒ”‡ –ƒ‡ –‘ •‡‡ –Šƒ– –Š‡
‘–”ƒ
–‘” ƒ†Ȁ‘” •—„
‘–”ƒ
–‘” ’”‘’‡”Ž› ‹’Ž‡‡–• –Š‡
”‡
‘‡†ƒ–‹‘• ‹ –Š‡ ˆ‹‡Ž†Ǥ Š‡
‘–”ƒ
–‘” ƒ†Ȁ‘” •—„
‘–”ƒ
–‘ ” • Š ‘ — Ž †  ‘ – ‹ ˆ › – Š ‡ ‘ ™  ‡ ” ‹ ˆ – Š ‡ › 

‘•‹†‡”ƒ›‘ˆ–Š‡”‡
‘‡†ƒ–‹‘•’”‡•‡–‡†Š‡”‡‹–‘„‡—•ƒˆ‡Ǥ

Š‡ ˆ‹†‹‰• ‘ˆ –Š‹• ”‡’‘”– ƒ”‡ ˜ƒŽ‹† ƒ• ‘ˆ –Š‡ ’”‡•‡– †ƒ–‡Ǥ ‘™‡˜‡”ǡ
Šƒ‰‡• ‹ –Š‡
‘†‹–‹‘• ‘ˆ ƒ
’”‘’‡”–›
ƒƒ††‘‘

—”™‹–Š–Š‡’ƒ••ƒ‰‡‘ˆ–‹‡ǡ™Š‡–Š‡”–Š‡ ›„‡†—‡–‘ƒ–—”ƒŽ’”‘ ‡••‡•‘”–Š‡
™‘”• ‘ˆ ƒ ‘ –Š‹• ‘” ƒ†Œƒ
‡– ’”‘’‡”–‹‡•Ǥ Š‡”‡ˆ‘”‡ǡ –Š‡ ˆ‹ †‹‰•ǡ
‘
Ž—•‹‘•ǡ ƒ†
”‡
‘‡†ƒ–‹‘• ’”‡•‡–‡† ‹ –Š‹• ”‡’‘”–
ƒ „‡ ”‡Ž‹‡† —’‘ ‘Ž › ‹ ˆ 
 
‡ ‘ – ‡
Š  ‹
ƒ Ž Š ƒ • – Š ‡ 
‘’’‘”–—‹–› –‘ ‘„•‡”˜‡ –Š‡ •—„•—”ˆƒ
‡
‘†‹–‹‘• †—”‹‰ ‰”ƒ†‹‰ƒ  † 
‘  • – ” —
– ‹ ‘  ‘ ˆ – Š ‡ ’ ” ‘ Œ ‡
– ǡ ‹  
‘”†‡”–‘
‘ˆ‹”–Šƒ–‘—”’”‡Ž‹‹ƒ”›ˆ‹†‹‰•ƒ”‡”‡’”‡•‡–ƒ–‹˜‡ˆ‘”–Š‡•‹–‡Ǥ 

 ƒ††‹–‹‘ǡ
Šƒ‰‡• ‹ ƒ’’Ž‹
ƒ„Ž‡ ‘” ƒ’’”‘’”‹ƒ–‡ •–ƒ†ƒ”†• ƒ› ‘

— ” ǡ ™ Š ‡ – Š ‡ ” – Š ‡ › ” ‡ • — Ž – ˆ ” ‘  
Ž‡‰‹•Žƒ–‹‘‘”–Š‡„”‘ƒ†‡‹‰‘ˆ‘™Ž‡†‰‡Ǥ

‘”†‹‰Ž›ǡ–Š‡ˆ‹ †‹‰•‘ˆ–Š‹•”‡’‘”–ƒ›„‡‹˜ƒŽ‹†ƒ–‡† ™ Š ‘ Ž Ž › ‘ ” ’ ƒ ” – ‹ ƒ Ž Ž › „ › 
Š ƒ  ‰ ‡ • ‘ — – • ‹ † ‡ ‘ — ” 
‘  – ” ‘ Ž Ǥ  Š ‡ ” ‡ ˆ ‘ ” ‡ ǡ – Š ‹ • ” ‡ ’ ‘ ” – ‹ • • — „ Œ ‡ – – ‘ ” ‡ ˜ ‹ ‡ ™ ƒ  † 
‘†‹ˆ‹
ƒ–‹‘ǡƒ†•Š‘—Ž†‘–„‡”‡Ž‹‡†—’‘ƒˆ–‡”ƒ’‡”‹‘†‘ˆ͵›‡ƒ”•Ǥ 







AppendixA
References


Project No. 14068-01 A-1 May 11, 2015
APPENDIXA

References


‡”‹
ƒ‘
”‡–‡
•–‹–—–‡ǡʹͲͳ͵ǡ
—‹†‡ˆ‘”–Š‡‡•‹‰ƒ†‘•–”—
–‹‘‘ˆ‘
”‡–‡ƒ”‹‰‘–•ȋ

͵͵ͲǦͲͺȌǡˆ‹ˆ–‡‡–Š’”‹–‹‰ǡ‘˜‡„‡”ʹͲͳ͵Ǥ

 ̴̴̴ǡ ʹͲͳͶǡ —‹Ž†‹‰ ‘†‡ ‡“—‹”‡‡–• ˆ‘” –”—
–—”ƒŽ ‘
”‡–‡ ȋ
 ͵ͳͺǦͳͶȌƒ  †  ‘   ‡  – ƒ ” › ȋ  

͵ͳͺǦͳͶȌǤ

‡”‹
ƒ ‘
‹‡–› ‘ˆ ‹˜‹Ž ‰‹‡‡”• ȋȌǡ ʹͲͳ͹ǡ ‹‹— ‡•‹‰ ‘ƒ†• ˆ‘” —‹Ž†‹‰• ƒ† –Š‡” –”—
–—”‡•ǡȀ
͹Ǧͳ͸ǡʹͲͳ͹Ǥ

 ̴̴̴ǡʹͲͳͺǡ–ƒ†ƒ”†͹Ǧͳ͸ǡ‹‹—‡•‹‰‘ƒ†•ˆ‘”—‹Ž†‹‰•ƒ †••‘ ‹ƒ–‡†”‹–‡”‹ƒˆ‘”—‹Ž†‹‰•
ƒ†–Š‡”–”—
–—”‡•ǡ—’’Ž‡‡–ͳǡ‡ˆˆ‡
–‹˜‡ǣ‡
‡„‡”ͳʹǡʹͲͳͺǤ

‡”‹
ƒ‘
‹‡–›ˆ‘”‡•–‹‰ƒ†ƒ–‡”‹ƒŽ•ȋȌǡ‘Ž—‡ͲͶǤͲͺ‘‹Žƒ†‘ ȋ
ȌǣͶʹͲȂͷͺ͹ͷǤ

ƒŽ‹ˆ‘”‹ƒ —‹Ž†‹‰ –ƒ†ƒ”†• ‘‹••‹‘ǡ ʹͲͳͻǡ ƒŽ‹ˆ‘”‹ƒ —‹Ž †‹‰ ‘†‡ǡ ƒŽ‹ˆ‘”‹ƒ ‘†‡ ‘ˆ ‡‰—Žƒ–‹‘•‹–Ž‡ʹͶǡ‘Ž—‡•ͳƒ†ʹǡ†ƒ–‡†
—Ž›ʹͲͳͻǤ

ƒŽ‹ˆ‘”‹ƒ ‡’ƒ”–‡– ‘ˆ ‘•‡”˜ƒ–‹‘ǡ ʹͲͲͲǡ ‹‰‹–ƒŽ ƒ‰‡• ‘ˆ ˆˆ‹
‹ƒŽ ƒ’• ‘ˆ Ž“—‹•–Ǧ”‹‘Ž‘
ƒ”–Š“—ƒ‡ ƒ—Ž–
‘‡•‘ˆƒŽ‹ˆ‘”‹ƒǡ‘—–Š‡”‡‰‹‘ǡ
ʹͲͲͲǦͲ͵Ǥ

ƒŽ–”ƒ•ǡʹͲʹͳǡ‘””‘•‹‘
—‹†‡Ž‹‡•ǡ‡”•‹‘͵Ǥʹǡ†ƒ–‡†ƒ›ʹͲʹͳǤ

ƒŽ‹ˆ‘”‹ƒ
‡‘Ž‘‰‹
ƒŽ —”˜‡› ȋ
Ȍǡ ȋ”‡˜‹‘—•Ž› ƒŽ‹ˆ‘”‹ƒ ‹˜‹•‹‘‘ˆ‹‡•ƒ†
‡‘Ž‘‰›Ȍǡ ʹͲͲ͹ǡ ƒ—Ž–Ǧ
—’–—”‡
ƒœƒ”†
‘‡•‹ƒŽ‹ˆ‘”‹ƒǡŽ“—‹•–Ǧ”‹‘Ž‘ƒ”–Š“—ƒ‡ ƒ—Ž–
‘‹‰
–™‹–Š
†‡š–‘
ƒ”–Š“—ƒ‡ ƒ—Ž–
‘‡•ƒ’•ǡ’‡
‹ƒŽ—„Ž‹
ƒ–‹‘Ͷʹǡ
–‡”‹‡˜‹•‹‘ʹͲͲ͹Ǥ

 ǡʹͲͲ͹ƒǡ
‡‘Ž‘‰‹
ƒ’‘ˆ–Š‡
‡ƒ•‹†‡͵Ͳǯš͸Ͳǯ—ƒ†”ƒ‰Ž‡ǡƒŽ‹ˆ‘”‹ƒǡ‡‰‹‘ƒŽ
‡‘Ž‘‰‹
ƒ’
‡”‹‡•ǡͳǣͳͲͲǡͲͲͲ•
ƒŽ‡ǡƒ’‘ǤʹǡŠ‡‡–ͳ‘ˆʹ

 ǡ ʹͲͲͺǡ ƒŽ‹ˆ‘”‹ƒ
‡‘Ž‘‰‹
ƒŽ ‘
‹‡–› ’‡
‹ƒŽ —„Ž‹
ƒ–‹‘ ͳͳ͹ ǣ
—‹†‡Ž‹‡• ˆ‘” ˜ƒŽ—ƒ–‹‰ ƒ†
‹–‹‰ƒ–‹‰‡‹•‹

ƒœƒ”†•‹ƒŽ‹ˆ‘”‹ƒǤ

‘—–›‘ˆƒ‹‡‰‘‡•‹‰ƒ—ƒŽǡʹͲʹͲǡ
‡‘–‡
Š‹
ƒŽ‰‹‡‡”ƒŽ›•‹•ǡ’’‡†‹šǡ’’”‘˜‡†

ˆ‹Ž–”ƒ–‹‘ƒ–‡••‡••‡–‡–Š‘†•ǡ†ƒ–‡†‡’–‡„‡”ͳͷǡʹͲʹͲǤ 

”‡‡„‘‘ ‘‹––‡‡ ‘ˆ —„Ž‹
 ‘”• –ƒ†ƒ”†•ǡ ʹͲͳͺǡ –ƒ†ƒ”† ’‡
‹ˆ‹
ƒ–‹‘• ˆ‘” —„Ž‹
 ‘”•
‘•–”—
–‹‘ǡDz
”‡‡„‘‘dzǤ




‡™ǡ ‡– ƒŽǡ ʹͲͳͲǡ ‡‹•‹
 ƒ”–Š ”‡••—”‡• ‘ ‡‡’ ƒ•‡‡–•ǡ –”—
–—”ƒŽ ‰‹‡‡”• ••‘
‹ƒ–‹‘ ‘ˆ
ƒŽ‹ˆ‘”‹ƒȋȌ‘˜‡–‹‘”‘
‡‡†‹‰•Ǥ


Project No. 21138-01 A-2 July 15, 2021
‘•–Ǧ‡•‹‘‹‰
•–‹–—–‡ȋ
ȌǡʹͲͳʹǡ–ƒ†ƒ”†‡“—‹”‡‡–•ˆ‘”‡•‹‰ƒ†ƒŽ›•‹•‘ˆŠƒŽŽ‘™‘•–Ǧ ‡•‹‘‡†‘
”‡–‡ ‘—†ƒ–‹‘•‘š’ƒ•‹˜‡‘‹Ž•ǡ
ͳͲǤͷǦͳʹǤ

–”—
–—”ƒŽ‰‹‡‡”•••‘
‹ƒ–‹‘‘ˆƒŽ‹ˆ‘”‹ƒȋȌǡʹͲʹͳǡ ‡‹•‹
‡•‹‰ƒ’•ǡ‡–”‹‡˜‡†
—Ž›ͳʹǡ
ʹͲʹͳǡˆ”‘Š––’•ǣȀȀ•‡‹•‹
ƒ’•Ǥ‘”‰Ȁ

‹–‡† –ƒ–‡•
‡‘Ž‘‰‹
ƒŽ —”˜‡› ȋ
Ȍǡ ʹͲͳͶǡ ‹ˆ‹‡†
ƒœƒ”† ‘‘Žǡ ›ƒ‹
ǣ ‘–‡”‹‘—• ǤǤ ʹͲͳͶ
ȋ—’†ƒ–‡Ȍ ȋ˜ͶǤʹǤͲȌǡ ‡–”‹‡˜‡†
—Ž› ͳʹǡ ʹͲʹͳǡ ˆ”‘ǣ
Š––’•ǣȀȀ‡ƒ”–Š“—ƒ‡Ǥ—•‰•Ǥ‰‘˜ȀŠƒœƒ”†•Ȁ‹–‡”ƒ
–‹˜‡Ȁ

‹”‡‡‹ˆ‘”
‡‡–
•–‹–—–‡ǡ

Ǥǡͳͻͻ͸ǡ‡•‹‰‘ˆŽƒ„ǦǦ
”‘—† ‘—†ƒ–‹‘•ȋ—‰—•–ͳͻͺͳȌǡ’†ƒ–‡
ƒ”
ŠͳͻͻͷǤ








AppendixB
Boring&TestPitLogs

THIS SUMMARY APPLIES ONLY AT THE LOCATION
OF THIS BORING AND AT THE TIME OF DRILLING.

SUBSURFACE CONDITIONS MAY DIFFER AT OTHER

LOCATIONS AND MAY CHANGE AT THIS LOCATION
WITH THE PASSAGE OF TIME. THE DATA

PRESENTED IS A SIMPLIFICATION OF THE ACTUAL
CONDITIONS ENCOUNTERED. THE DESCRIPTIONS

PROVIDED ARE QUALITATIVE FIELD DESCRIPTIONS

AND ARE NOT BASED ON QUANTITATIVE
ENGINEERING ANALYSIS.

CN CONSOLIDATION

CR CORROSION

AL ATTERBERG LIMITS

CO COLLAPSE/SWELL

RV R-VALUE
-#200 % PASSING # 200 SIEVE

DIRECT SHEAR

MAXIMUM DENSITY

SIEVE ANALYSIS

SIEVE AND HYDROMETER

EXPANSION INDEX
TEST TYPES:

DS
MD
SA
S&H
EI
SAMPLE TYPES:

B BULK SAMPLE
R RING SAMPLE (CA Modified Sampler)

G GRAB SAMPLE

SPT STANDARD PENETRATION

TEST SAMPLE

GROUNDWATER TABLE
30 25
20 15
10 5
0 Type of TestDESCRIPTION
USCS Symbol
Moisture (%)
Dry Density (pcf)
Blow Count
Sample Number
Graphic Log
Depth (ft)
Elevation (ft)
Hole Diameter:

Hole Location: See Geotechnical Map
Drop:

Type of Rig:

Project Number:

Elevation of Top of Hole: Drive Weight:

Drilling Company:

Project Name:

Date:
570
565
560
555
550
Geotechnical Boring Log Borehole HS-1
6/7/2021
~575' MSL
8"
M10 (Truck Mounted)
30 140 pounds
Pacific Drilling
Meritage - Las Posas
21138-01
Logged By MJG
Sampled By MJG
Checked By BPG

R-1 8
21 32
120.7 8.4 ML Quaternary Older Alluvium (Qoa):
@2.5'- SILT:brown, slightly moist, hard, well indurated R-2 18
50/3" 97.6 8.7 @5'- Sandy SILT: gray/brown with red/orange mottling, slightly moist, hard, trace pinhole porosity, well indurated Total Depth = 6'
Groundwater Not Encountered
Backfilled with Cuttings on 6/7/2021
Last Edited: 7/8/2021
Artificial Fill (Afo):
@1'- Clayey SAND: brown, moist9.0 SC
EI
CR
B-1

THIS SUMMARY APPLIES ONLY AT THE LOCATION
OF THIS BORING AND AT THE TIME OF DRILLING.

SUBSURFACE CONDITIONS MAY DIFFER AT OTHER

LOCATIONS AND MAY CHANGE AT THIS LOCATION
WITH THE PASSAGE OF TIME. THE DATA

PRESENTED IS A SIMPLIFICATION OF THE ACTUAL
CONDITIONS ENCOUNTERED. THE DESCRIPTIONS

PROVIDED ARE QUALITATIVE FIELD DESCRIPTIONS

AND ARE NOT BASED ON QUANTITATIVE
ENGINEERING ANALYSIS.

CN CONSOLIDATION

CR CORROSION

AL ATTERBERG LIMITS

CO COLLAPSE/SWELL

RV R-VALUE
-#200 % PASSING # 200 SIEVE

DIRECT SHEAR

MAXIMUM DENSITY

SIEVE ANALYSIS

SIEVE AND HYDROMETER

EXPANSION INDEX
TEST TYPES:

DS
MD
SA
S&H
EI
SAMPLE TYPES:

B BULK SAMPLE
R RING SAMPLE (CA Modified Sampler)

G GRAB SAMPLE

SPT STANDARD PENETRATION

TEST SAMPLE

GROUNDWATER TABLE
30 25
20 15
10 5
0 Type of TestDESCRIPTION
USCS Symbol
Moisture (%)
Dry Density (pcf)
Blow Count
Sample Number
Graphic Log
Depth (ft)
Elevation (ft)
Hole Diameter:

Hole Location: See Geotechnical Map
Drop:

Type of Rig:

Project Number:

Elevation of Top of Hole: Drive Weight:

Drilling Company:

Project Name:

Date:
570
565
560
555
550
Geotechnical Boring Log Borehole HS-2
6/7/2021
~575' MSL
8"
M10 (Truck Mounted)
30"
140 pounds
Pacific Drilling
Meritage - Las Posas
21138-01
Logged By MJG
Sampled By MJG
Checked By BPG

R-1 12
13 16
109.2 10.6 ML @2.5'- Sandy SILT: gray/brown, moist, very stiff R-2
5 10
13 @5'- Clayey SAND: olive brown, slightly moist, medium dense
R-3 8
15 15
115.6 12.9 CL
@7.5'- Sandy CLAY: dusky brown, slightly moist, very
stiff
R-4 7
31 49
123.4 8.2 GC @10'- Clayey GRAVEL: pinkish brown, moist, very dense, well indurated
R-5 50/3" @15'- No recovery/Hardrock
Total Depth = 15.5' (Refusal)
Groundwater Not Encountered
Backfilled with Cuttings on 6/7/2021
Last Edited: 7/8/2021
Quaternary Older Alluvium (Qoa)
-#200
AL
CN
SC107.4 12.4

THIS SUMMARY APPLIES ONLY AT THE LOCATION
OF THIS BORING AND AT THE TIME OF DRILLING.

SUBSURFACE CONDITIONS MAY DIFFER AT OTHER

LOCATIONS AND MAY CHANGE AT THIS LOCATION
WITH THE PASSAGE OF TIME. THE DATA

PRESENTED IS A SIMPLIFICATION OF THE ACTUAL
CONDITIONS ENCOUNTERED. THE DESCRIPTIONS

PROVIDED ARE QUALITATIVE FIELD DESCRIPTIONS

AND ARE NOT BASED ON QUANTITATIVE
ENGINEERING ANALYSIS.

CN CONSOLIDATION

CR CORROSION

AL ATTERBERG LIMITS

CO COLLAPSE/SWELL

RV R-VALUE
-#200 % PASSING # 200 SIEVE

DIRECT SHEAR

MAXIMUM DENSITY

SIEVE ANALYSIS

SIEVE AND HYDROMETER

EXPANSION INDEX
TEST TYPES:

DS
MD
SA
S&H
EI
SAMPLE TYPES:

B BULK SAMPLE
R RING SAMPLE (CA Modified Sampler)

G GRAB SAMPLE

SPT STANDARD PENETRATION

TEST SAMPLE

GROUNDWATER TABLE
30 25
20 15
10 5
0 Type of TestDESCRIPTION
USCS Symbol
Moisture (%)
Dry Density (pcf)
Blow Count
Sample Number
Graphic Log
Depth (ft)
Elevation (ft)
Hole Diameter:

Hole Location: See Geotechnical Map
Drop:

Type of Rig:

Project Number:

Elevation of Top of Hole: Drive Weight:

Drilling Company:

Project Name:

Date:
570
565
560
555
550
Geotechnical Boring Log Borehole HS-3
6/7/2021
~574' MSL
8"
M10 (Truck Mounted)
30"
140 pounds
Pacific Drilling
Meritage - Las Posas
21138-01
Logged By MJG
Sampled By MJG
Checked By BPG

R-1 10
20 34
118.4 6.6
SM
@2.5- Silty SAND: dusky gray and brown mottled,
slightly moist, dense
R-2
7 15
20 105.4 6.7 SM/SP
Quaternary Older Alluvium (Qoa):
@5'- Silty SAND/SAND: light brown, slightly moist,
medium dense, well indurated
Total Depth = 6.5'
Groundwater Not Encountered
Backfilled with Cuttings on 6/7/2021
Last Edited: 7/8/2021
Artificial Fill - Older (Afo):
@1'- Silty SAND: brown, moist8.0
MD
B-1

THIS SUMMARY APPLIES ONLY AT THE LOCATION
OF THIS BORING AND AT THE TIME OF DRILLING.

SUBSURFACE CONDITIONS MAY DIFFER AT OTHER

LOCATIONS AND MAY CHANGE AT THIS LOCATION
WITH THE PASSAGE OF TIME. THE DATA

PRESENTED IS A SIMPLIFICATION OF THE ACTUAL
CONDITIONS ENCOUNTERED. THE DESCRIPTIONS

PROVIDED ARE QUALITATIVE FIELD DESCRIPTIONS

AND ARE NOT BASED ON QUANTITATIVE
ENGINEERING ANALYSIS.

CN CONSOLIDATION

CR CORROSION

AL ATTERBERG LIMITS

CO COLLAPSE/SWELL

RV R-VALUE
-#200 % PASSING # 200 SIEVE

DIRECT SHEAR

MAXIMUM DENSITY

SIEVE ANALYSIS

SIEVE AND HYDROMETER

EXPANSION INDEX
TEST TYPES:

DS
MD
SA
S&H
EI
SAMPLE TYPES:

B BULK SAMPLE
R RING SAMPLE (CA Modified Sampler)

G GRAB SAMPLE

SPT STANDARD PENETRATION

TEST SAMPLE

GROUNDWATER TABLE
30 25
20 15
10 5
0 Type of TestDESCRIPTION
USCS Symbol
Moisture (%)
Dry Density (pcf)
Blow Count
Sample Number
Graphic Log
Depth (ft)
Elevation (ft)
Hole Diameter:

Hole Location: See Geotechnical Map
Drop:

Type of Rig:

Project Number:

Elevation of Top of Hole: Drive Weight:

Drilling Company:

Project Name:

Date:
570
565
560
555
550
Geotechnical Boring Log Borehole HS-4
6/7/2021
~574' MSL
8"
M10 (Truck Mounted)
30"
140 pounds
Pacific Drilling
Meritage - Las Posas
21138-01
Logged By MJG
Sampled By MJG
Checked By BPG

R-1 9
13 14
112.1 8.7 CL @2.5'- Sandy CLAY: gray/brown mottled, slightly moist, very stiff
R-2 12
17 14
114.4 8.3 SC @5'- Clayey SAND: yellow-gray to brown, moist, medium dense, well indurated, homogenous
Total Depth = 6.5'
Groundwater Not Encountered
Backfilled with Cuttings on 6/7/2021
Last Edited: 7/8/2021
Artificial Fill - Older (Afo):

THIS SUMMARY APPLIES ONLY AT THE LOCATION
OF THIS BORING AND AT THE TIME OF DRILLING.

SUBSURFACE CONDITIONS MAY DIFFER AT OTHER

LOCATIONS AND MAY CHANGE AT THIS LOCATION
WITH THE PASSAGE OF TIME. THE DATA

PRESENTED IS A SIMPLIFICATION OF THE ACTUAL
CONDITIONS ENCOUNTERED. THE DESCRIPTIONS

PROVIDED ARE QUALITATIVE FIELD DESCRIPTIONS

AND ARE NOT BASED ON QUANTITATIVE
ENGINEERING ANALYSIS.

CN CONSOLIDATION

CR CORROSION

AL ATTERBERG LIMITS

CO COLLAPSE/SWELL

RV R-VALUE
-#200 % PASSING # 200 SIEVE

DIRECT SHEAR

MAXIMUM DENSITY

SIEVE ANALYSIS

SIEVE AND HYDROMETER

EXPANSION INDEX
TEST TYPES:

DS
MD
SA
S&H
EI
SAMPLE TYPES:

B BULK SAMPLE
R RING SAMPLE (CA Modified Sampler)

G GRAB SAMPLE

SPT STANDARD PENETRATION

TEST SAMPLE

GROUNDWATER TABLE
30 25
20 15
10 5
0 Type of TestDESCRIPTION
USCS Symbol
Moisture (%)
Dry Density (pcf)
Blow Count
Sample Number
Graphic Log
Depth (ft)
Elevation (ft)
Hole Diameter:

Hole Location: See Geotechnical Map
Drop:

Type of Rig:

Project Number:

Elevation of Top of Hole: Drive Weight:

Drilling Company:

Project Name:

Date:
570
565
560
555
550
Geotechnical Boring Log Borehole HS-5
6/7/2021
~573' MSL
8"
M10 (Truck Mounted)
30"
140 pounds
Pacific Drilling
Meritage - Las Posas
21138-01
Logged By MJG
Sampled By MJG
Checked By BPG

R-1 9
11 17
@2.5'- Silty SAND/Sandy SILT: brown/red-brown,
slightly moist, medium dense/stiff, well indurated, trace pinhole porosity
R-2 10
18 18
@5'- Silty SAND/Sandy SILT: rusty brown, slightly moist, medium dense/very stiff, some dark brown speckled
staining, trace pinhole porosity, well indurated
Total Depth = 6.5'
Groundwater Not Encountered
Backfilled with Cuttings on 6/7/2021
Last Edited: 7/8/2021
Quaternary Older Alluvium (Qoa):
116.0 7.4 SM/ML
112.9 7.0

THIS SUMMARY APPLIES ONLY AT THE LOCATION
OF THIS BORING AND AT THE TIME OF DRILLING.

SUBSURFACE CONDITIONS MAY DIFFER AT OTHER

LOCATIONS AND MAY CHANGE AT THIS LOCATION
WITH THE PASSAGE OF TIME. THE DATA

PRESENTED IS A SIMPLIFICATION OF THE ACTUAL
CONDITIONS ENCOUNTERED. THE DESCRIPTIONS

PROVIDED ARE QUALITATIVE FIELD DESCRIPTIONS

AND ARE NOT BASED ON QUANTITATIVE
ENGINEERING ANALYSIS.

CN CONSOLIDATION

CR CORROSION

AL ATTERBERG LIMITS

CO COLLAPSE/SWELL

RV R-VALUE
-#200 % PASSING # 200 SIEVE

DIRECT SHEAR

MAXIMUM DENSITY

SIEVE ANALYSIS

SIEVE AND HYDROMETER

EXPANSION INDEX
TEST TYPES:

DS
MD
SA
S&H
EI
SAMPLE TYPES:

B BULK SAMPLE
R RING SAMPLE (CA Modified Sampler)

G GRAB SAMPLE

SPT STANDARD PENETRATION

TEST SAMPLE

GROUNDWATER TABLE
30 25
20 15
10 5
0 Type of TestDESCRIPTION
USCS Symbol
Moisture (%)
Dry Density (pcf)
Blow Count
Sample Number
Graphic Log
Depth (ft)
Elevation (ft)
Hole Diameter:

Hole Location: See Geotechnical Map
Drop:

Type of Rig:

Project Number:

Elevation of Top of Hole: Drive Weight:

Drilling Company:

Project Name:

Date:
570
565
560
555
550
Geotechnical Boring Log Borehole HS-6
6/7/2021
~572' MSL
8"
M10 (Truck Mounted)
30"
140 pounds
Pacific Drilling
Meritage - Las Posas
21138-01
Logged By MJG
Sampled By MJG
Checked By BPG

R-1 10
22 22
@2.5'- SILT/CLAY: red-brown, dry, hard, well indurated
R-2
5 10
22 @5'- CLAY/Sandy CLAY: red-brown, slightly moist, very stiff, well indurated
Total Depth = 6.5'
Groundwater Not Encountered
Backfilled with Cuttings on 6/7/2021
Last Edited: 7/8/2021
Quaternary Older Alluvium (Qoa):

ML/CL
CL

THIS SUMMARY APPLIES ONLY AT THE LOCATION
OF THIS BORING AND AT THE TIME OF DRILLING.

SUBSURFACE CONDITIONS MAY DIFFER AT OTHER

LOCATIONS AND MAY CHANGE AT THIS LOCATION
WITH THE PASSAGE OF TIME. THE DATA

PRESENTED IS A SIMPLIFICATION OF THE ACTUAL
CONDITIONS ENCOUNTERED. THE DESCRIPTIONS

PROVIDED ARE QUALITATIVE FIELD DESCRIPTIONS

AND ARE NOT BASED ON QUANTITATIVE
ENGINEERING ANALYSIS.

CN CONSOLIDATION

CR CORROSION

AL ATTERBERG LIMITS

CO COLLAPSE/SWELL

RV R-VALUE
-#200 % PASSING # 200 SIEVE

DIRECT SHEAR

MAXIMUM DENSITY

SIEVE ANALYSIS

SIEVE AND HYDROMETER

EXPANSION INDEX
TEST TYPES:

DS
MD
SA
S&H
EI
SAMPLE TYPES:

B BULK SAMPLE
R RING SAMPLE (CA Modified Sampler)

G GRAB SAMPLE

SPT STANDARD PENETRATION

TEST SAMPLE

GROUNDWATER TABLE
30 25
20 15
10 5
0 Type of TestDESCRIPTION
USCS Symbol
Moisture (%)
Dry Density (pcf)
Blow Count
Sample Number
Graphic Log
Depth (ft)
Elevation (ft)
Hole Diameter:

Hole Location: See Geotechnical Map
Drop:

Type of Rig:

Project Number:

Elevation of Top of Hole: Drive Weight:

Drilling Company:

Project Name:

Date:
570
565
560
555
550
Geotechnical Boring Log Borehole I-2
6/7/2021
~571' MSL
8"
M10 (Truck Mounted)
30"
140 pounds
Pacific Drilling
Meritage - Las Posas
21138-01
Logged By MJG
Sampled By MJG
Checked By BPG

SPT-1 4
4 3
@2.5'- SAND with Clay: gray/tan, slightly moist, loose
SPT-2
2 4
4 @5'- SAND with Clay: olive gray to tan, slightly moist, medium dense
SPT-3
7 6
7 Quaternary Older Alluvium (Qoa):
@7.5'- CLAY with Gravel: brown/red, slightly moist, very stiff, well indurated
Total Depth = 10'
Groundwater Not Encountered
Pipe Pulled and Backfilled with Cuttings on 6/8/21
Last Edited: 7/8/2021
Artificial Fill - older (Afo):

SC
CL
EI
B-1
SOIL DESCRIPTION:

GRAPHICAL REPRESENTATION BELOW:

Geologic
Attitudes
Engineering Properties:

GEOLOGIC

UNITUSCSSAMPLE
No

MOISTURE
(%)
DRY

DENSITY
(PCF)
Unit
Project Name: Las Posas
Project Number : 21138-01
Equipment: Backhoe
Logged By: MJG
Date : 6/18/2021
Location: See Geotechnical Map
Trench No: TP-1
scale : 1 in = 5 ft
Elevation : ~576' AMSLSurface Slope: 0 deg.Trend: N25E
A @ 0 to 4' Silty SAND: light and dark brown, red/brown, and olive gray mottled, slightly moist, medium dense to dense, some gravel and cobbles (3" to 12"' across), some trash at surface Afo
G-1 @
4-6'
@ 4' to 6' Sandy CLAY: dark brown to olive gray, slightly moist to moist, medium dense, 3" to 6" gravels and cobbles
G-1 @
1-4'
Total Depth: 6'
Groundwater: None
Backfilled: 6/18/21
Last Edited: 6/15/2021
B
A
B
SM
SC
Artificial fill - older
SOIL DESCRIPTION:

GRAPHICAL REPRESENTATION BELOW:

Geologic
Attitudes
Engineering Properties:

GEOLOGIC

UNITUSCSSAMPLE
No

MOISTURE
(%)
DRY

DENSITY
(PCF)
Unit
Project Name: Las Posas
Project: Number: 21138-01
Equipment: Backhoe
Logged By: MJG
Date : 6/18/2021
Location: See Geotechnical Map
Trench No: TP-2
scale : 1 in = 5 ft
Elevation : ~ 574 AMSLSurface Slope: 0 deg.Trend: N75E
A
@ 8 to 12' Clayey SAND to Sandy CLAY: light brown/yellow w/gray mottling, moist, softer than above, poorly sorted Afo
G-1 @
0-3'
Total Depth: 12'
Groundwater: None
Backfilled: 6/18/21
Last Edited: 6/15/2021
Artifical Fill - older
@ 0 to 3' Silty SAND: light brown to red brown mottled, dry, medium dense to dense, some gravel & cobbles, and some
asphalt rubble, dead vegetation/grass at surface
@ 3' to 8' Sandy CLAY: brown & red brown mottled, medium dense, moist, few gravels
B
C
G-2 @
5-8'
G-3 @
9-12'
Qoa
A
B
C
SM
SC
Quaternary Older Alluvium
SOIL DESCRIPTION:

GRAPHICAL REPRESENTATION BELOW:

Geologic
Attitudes
Engineering Properties:

GEOLOGIC

UNITUSCSSAMPLE
No

MOISTURE
(%)
DRY

DENSITY
(PCF)
Unit
Project Name: Las Posas
Project Number : 21138-01
Equipment: Backhoe
Logged By: MJG
Date : 6/18/2021
Location: See Geotechnical Map
Trench No: TP-3
scale : 1 in = 5 ft
Elevation : ~571' AMSLSurface Slope: Approx. 2 deg.Trend: N75E Afo
B-1 @

2.5-6' @ 2.5' to 6' SAND with Clay: light brown, moist, soft/medium dense to loose,some angular cobbles 3" to 6" across
Total Depth: 6'
Groundwater: None
Backfilled: 6/18/21
Last Edited: 6/15/2021
@ 0 to 2.5' Silty SAND: mottled shades of brown, dry, dense, some gravel, indurated
Qoa
A
B
Artificial Fill - olderQuaternary Older Alluvium
SM
SC
A
B
SOIL DESCRIPTION:

GRAPHICAL REPRESENTATION BELOW:

Geologic
Attitudes
Engineering Properties:

GEOLOGIC

UNITUSCSSAMPLE
No

MOISTURE
(%)
DRY

DENSITY
(PCF)
Unit
Project Name: Las Posas
Project Number : 21138-01
Equipment: Backhoe
Logged By: MJG
Date : 6/18/2021
Location: See Geotechnical Map
Trench No: TP-4
scale : 1 in = 5 ft
Elevation : ~ 570' AMSLSurface Slope: 0 deg.Trend: N25E A
@ 4' to 8' SAND: light brown to light gray, moist, medium dense, trace clay/silt laminations, some cobbles to 6" across Afo
B
Total Depth: 8'
Groundwater: None
Backfilled: 6/18/21
Last Edited: 6/15/2021
@ 0 to 4' Sandy CLAY: red brown, slightly moist, medium dense to dense, some asphalt and concrete rubble
Qoa
A
B
Artificial Fill - olderQuaternary Older Alluvium
SC
SOIL DESCRIPTION:

GRAPHICAL REPRESENTATION BELOW:

Geologic
Attitudes
Engineering Properties:

GEOLOGIC

UNITUSCSSAMPLE
No

MOISTURE
(%)
DRY

DENSITY
(PCF)
Unit
Project Name: Las Posas
Project Number : 21138-01
Equipment: Backhoe
Logged By: MJG
Date : 6/18/2021
Location: See Geotechnical Map
Trench No: TP-5
scale : 1 in = 5 ft
Elevation : ~575' AMSLSurface Slope: 0 deg.Trend: N75E
A
@ 1.5' to 5.5' Silty SAND: gray to dark brown mottled, dry to slightly moist, dense
AfoG-1 @
0-1'
B
Total Depth: 6'
Groundwater: None
Backfilled: 6/18/21
Last Edited: 6/15/2021
@ 0' to 1.5' Silty SAND: light brown, dry, medium dense to dense, rootlets, some gravel
@ 6' Clayey SAND: red-brown, light brown and gray, slightly moist, very dense, well indurated
Qoa
C
G-2 @
2-4'
G-1 @
6'
C
B
A
Artificial Fill - olderQuaternary Older Alluvium
SM
SC






AppendixC
LaboratoryTestResults


Project No. 21138-01 A-2 July 15, 2021
APPENDIXC

LaboratoryTestResults

Š‡ Žƒ„‘”ƒ–‘”› –‡•–‹‰ ’”‘‰”ƒ ™ƒ• ˆ‘”—Žƒ–‡† –‘™ƒ”†• ’”‘˜‹†‹‰  †ƒ–ƒ ”‡Žƒ–‹‰ –‘ –Š‡ ”‡Ž‡˜ƒ– ‡‰‹‡‡”‹‰ ’”‘’‡”–‹‡• ‘ˆ –Š‡ •‘‹Ž• ™‹–Š ”‡•’‡
– –‘ ”‡•‹†‡–‹ƒŽ 
‘•–”—
–‹‘Ǥ ƒ’Ž‡•
‘•‹†‡”‡†
”‡’”‡•‡–ƒ–‹˜‡ ‘ˆ •‹–‡
‘†‹–‹‘• ™‡”‡ –‡•–‡† ‹ ‰‡‡”ƒŽ ƒ

‘”†ƒ
‡ ™‹–Š ‡”‹
ƒ ‘
‹‡–› ˆ‘” ‡•–‹‰
ƒ†ƒ–‡”‹ƒŽ•ȋȌ’”‘
‡†—”‡ƒ†Ȁ‘”ƒŽ‹ˆ‘”‹ƒ‡•–‡–Š‘†•ȋȌǡ™Š‡”‡ƒ’’Ž‹ ƒ„Ž‡ǤŠ‡ˆ‘ŽŽ‘™‹‰
•—ƒ”›‹•ƒ„”‹‡ˆ‘—–Ž‹‡‘ˆ–Š‡–‡•––›’‡ƒ†ƒ–ƒ„Ž‡•—ƒ”‹œ‹‰–Š‡–‡•–”‡•—Ž–•Ǥ 
 ‘ ‹ • – — ” ‡ ƒ  †  ‡  • ‹ – ›  ‡ – ‡ ”  ‹  ƒ – ‹ ‘   ‡ • – • ǣ  ‘ ‹ • – — ” ‡  ‘  – ‡  – ȋ      ʹ ʹ ͳ ͸ Ȍ ƒ  † † ” › † ‡  • ‹ – ›  †‡–‡”‹ƒ–‹‘•ȋʹͻ͵͹Ȍ™‡”‡’‡”ˆ‘”‡†‘†”‹˜‡•ƒ’Ž‡•‘„–ƒ‹‡†ˆ”‘–Š‡–‡•–„‘”‹‰•ǤŠ‡ ” ‡ • — Ž – • ‘ ˆ – Š ‡ • ‡ – ‡ • – • ƒ ” ‡ ’ ” ‡ • ‡  – ‡ † ‹  – Š ‡ „ ‘ ” ‹  ‰ Ž ‘ ‰ • Ǥ  Š ‡ ” ‡ ƒ’’Ž‹ ƒ„Ž‡ǡ ‘Ž› ‘‹•–—”‡
‘–‡– ™ƒ•
†‡–‡”‹‡†ˆ”‘—†‹•–—”„‡†‘”†‹•–—”„‡†•ƒ’Ž‡•Ǥ


”ƒ‹ ‹œ‡ ‹•–”‹„—–‹‘Ȁ ‹‡• ‘–‡–ǣ ‡’”‡•‡–ƒ–‹˜‡ •ƒ’Ž‡• ™‡”‡ †”‹‡†ǡ ™‡‹‰Š‡†ǡ ƒ† •‘ƒ‡† ‹ ™ƒ–‡” —–‹Ž ‹†‹˜‹†—ƒŽ •‘‹Ž ’ƒ”–‹
Ž‡• ™‡”‡ •‡’ƒ”ƒ–‡† ȋ’‡”  Ͷ ʹ ͳ Ȍ ƒ  † – Š ‡  ™ ƒ • Š ‡ † ‘  ƒ  ‘ Ǥ ʹ Ͳ Ͳ  •‹‡˜‡ȋͳͳͶͲȌǤŠ‡”‡ƒ’’Ž‹
ƒ„Ž‡ǡ–Š‡’‘”–‹‘”‡–ƒ‹‡†‘ –Š‡‘ǤʹͲͲ•‹‡˜‡™ƒ•†”‹‡†ƒ†–Š‡ •‹‡˜‡†‘ƒǤǤ–ƒ†ƒ”†„”ƒ•••‹‡˜‡•‡–‹ƒ

‘”†ƒ
‡™‹–Š͸ͻͳ͵ȋ•‹‡˜‡Ȍ‘”Ͷʹʹȋ•‹‡˜‡
ƒ†Š›†”‘‡–‡”ȌǤ


SampleLocation Description %Passing#
200Sieve

ǦʹǡǦͳ ƒ†›
 Ͷͷ


––‡”„‡”‰ ‹‹–•ǣ Š‡ Ž‹“—‹† ƒ† ’Žƒ•–‹
 Ž‹‹–• ȋDz––‡”„‡”‰ ‹‹–•dzȌ ™‡”‡ †‡–‡”‹‡† ‹ ƒ

‘”†ƒ
‡ ™‹–Š
‡•– ‡–Š‘† Ͷ͵ͳͺ ˆ‘” ‡‰‹‡‡”‹‰
Žƒ••‹ˆ‹
ƒ–‹‘ ‘ˆ ˆ‹‡Ǧ‰”ƒ‹‡† ƒ–‡”‹ƒŽ ƒ† ’”‡•‡–‡† ‹ –Š‡ –ƒ„Ž‡ „‡Ž‘™ǣ


ƒ’Ž‡‘
ƒ–‹‘

‹“—‹†‹‹–ȋΨȌ

Žƒ•–‹
‹‹–ȋΨȌ
Žƒ•–‹
‹–›

†‡šȋΨȌ

‘‹ŽŽƒ••‹ˆ‹
ƒ–‹‘

ǦʹǡǦʹ ͵ͷ ͳʹ ʹ͵ 


ƒ„‘”ƒ–‘”›‘’ƒ
–‹‘ǣŠ‡ƒš‹—†”›†‡•‹–›ƒ†‘’–‹—‘‹•–—”‡
‘–‡–‘ˆ–›’‹
ƒŽƒ–‡”‹ƒŽ•
™‡”‡†‡–‡”‹‡†‹ƒ

‘”†ƒ
‡™‹–Šͳͷͷ͹ǤŠ‡”‡•—Ž–•‘ˆ–Š‡•‡–‡•–•ƒ”‡’”‡•‡–‡†‹–Š‡–ƒ„Ž‡ „‡Ž‘™Ǥ


SampleLocation SampleDescription
Maximum
DryDensity
(pcf)
Optimum
Moisture
Content(%)



Ǧ͵ǡǦͳ̷ͳǦͷǯ ”‘™‹Ž–›ƒ† ͳʹͷǤͷ ͳͲǤͲ


š’ƒ•‹‘
†‡šǣ Š‡ ‡š’ƒ•‹‘ ’‘–‡–‹ƒŽ ‘ˆ •‡Ž‡
–‡† •ƒ’Ž‡• ™‡”‡ ‡˜ƒŽ—ƒ–‡† „› –Š‡ š’ƒ•‹‘
†‡š
‡•–ǡ–ƒ†ƒ”†ͶͺʹͻǤ’‡
‹‡•ƒ”‡‘Ž†‡†—†‡”ƒ‰‹˜‡
‘’ƒ
–‹˜‡‡‡”‰›–‘ƒ’’”‘š‹ƒ–‡Ž›
–Š‡ ‘’–‹— ‘‹•–—”‡
‘–‡– ƒ† ƒ’’”‘š‹ƒ–‡Ž› ͷͲ ’‡”
‡– •ƒ–—”ƒ–‹‘ ‘” ƒ’’”‘š‹ƒ–‡Ž› ͻͲ ’‡”
‡–
”‡Žƒ–‹˜‡
‘’ƒ
–‹‘Ǥ Š‡ ’”‡’ƒ”‡† ͳǦ‹
ŠǦ–Š‹
 „› ͶǦ‹
ŠǦ†‹ƒ‡– ‡ ” • ’ ‡
‹  ‡  • ƒ ” ‡ Ž ‘ ƒ † ‡ † – ‘ ƒ  
‡“—‹˜ƒŽ‡–ͳͶͶ’•ˆ•—”
Šƒ”‰‡ƒ†ƒ”‡‹—†ƒ–‡†™‹–Š–ƒ’™ƒ–‡”—–‹Ž˜‘Ž—‡–”‹
‡“—‹Ž‹„”‹—‹•”‡ƒ
Š‡†Ǥ
Š‡”‡•—Ž–•‘ˆ–Š‡•‡–‡•–•ƒ”‡’”‡•‡–‡†‹–Š‡–ƒ„Ž‡„‡Ž‘™Ǥ 
Sample
Location
Expansion
Index
Expansio
n
Potential

ǦͳǡǦͳ̷ͳǦͷǯ ͵ʹ ‘™

Ǧͳ̷ͳǦͷǯ ͷͷ ‡†‹—


‘•‘Ž‹†ƒ–‹‘ǣ
‘•‘Ž‹†ƒ–‹‘–‡•–™ƒ•’‡”ˆ‘”‡†’‡”ʹͶ͵ͷǤƒ’Ž‡ȋʹǤͶ‹ Š‡•‹†‹ƒ‡–‡”
ƒ†ͳ‹
Š‹Š‡‹‰Š–Ȍ™ƒ•’Žƒ
‡†‹ƒ
‘•‘Ž‹†‘‡–‡”ƒ†‹
”‡ƒ•‹‰Ž‘ƒ†•™‡”‡ƒ’’Ž‹‡†ǤŠ‡•ƒ’Ž‡™ƒ•
ƒŽŽ‘™‡† –‘
‘•‘Ž‹†ƒ–‡ —†‡” Dz†‘—„Ž‡ †”ƒ‹ƒ‰‡dz ƒ† –‘–ƒŽ †‡ˆ‘” ƒ–‹‘ ˆ‘” ‡ƒ Š Ž‘ƒ†‹‰ •–‡’ ™ƒ•
”‡
‘”†‡†Ǥ  Š‡ ’‡”
‡–
‘•‘Ž‹†ƒ–‹‘ ˆ‘” ‡ƒ
Š Ž‘ƒ† •–‡’ ™ƒ• ”‡
‘ ” † ‡ † ƒ • – Š ‡ ” ƒ – ‹ ‘ ‘ ˆ – Š ‡ ƒ  ‘ —  – ‘ ˆ  ˜‡”–‹
ƒŽ
‘’”‡••‹‘ –‘ –Š‡ ‘”‹‰‹ƒŽ •ƒ’Ž‡ Š‡‹‰Š–Ǥ Š‡
‘•‘Ž‹†ƒ–‹‘ ’”‡••—”‡
—”˜‡• ƒ”‡ ’”‘˜‹†‡† ‹
–Š‹•’’‡†‹šǤ

‘Ž—„Ž‡ —Žˆƒ–‡•ǣ Š‡ •‘Ž—„Ž‡ •—Žˆƒ–‡
‘–‡–• ‘ˆ •‡Ž‡
–‡† •ƒ’ Ž‡• ™‡”‡ †‡–‡”‹‡† „› •–ƒ†ƒ”†
‰‡‘
Š‡‹
ƒŽ‡–Š‘†•ȋͶͳ͹ȌǤŠ‡–‡•–”‡•—Ž–•ƒ”‡’”‡•‡–‡†‹–Š‡–ƒ„Ž‡„‡Ž‘™Ǥ 
Sample
Location
SulfateContent
(ppm)
Sulfate
ExposureClass*

ǦͳǡǦͳ̷ͳǦͷǯ ͳͻ͵ Ͳ


ŠŽ‘”‹†‡‘–‡–ǣŠŽ‘”‹†‡
‘–‡–™ƒ•–‡•–‡†’‡”ͶʹʹǤŠ‡”‡•—Ž–•ƒ”‡’”‡•‡–‡†„‡Ž‘™Ǥ 

SampleLocation ChlorideContent,ppm

ǦͳǡǦͳ̷ͳǦͷǯ ͳͶͻ


‹‹— ‡•‹•–‹˜‹–› ƒ† ’
 ‡•–•ǣ ‹‹— ”‡•‹•–‹˜‹–› ƒ† ’
 –‡•–• ™‡”‡ ’‡”ˆ‘”‡† ‹ ‰‡‡”ƒŽ
ƒ

‘”†ƒ
‡ ™‹–Š  ͸Ͷ͵ ƒ† •–ƒ†ƒ”† ‰‡‘
Š‡‹
ƒŽ ‡–Š‘†•Ǥ Š‡ ”‡ • — Ž – • ƒ ” ‡ ’ ” ‡ • ‡  – ‡ † ‹  – Š ‡ – ƒ „ Ž ‡  „‡Ž‘™Ǥ



SampleLocation pH MinimumResistivity(ohmsǦ
cm)

ǦͳǡǦͳ̷ͳǦͷǯ ͺǤʹ ͹ͶͲ










AppendixD
GeneralEarthworkandGradingSpecificationsfor
RoughGrading

General Earthwork and Grading Specifications for Rough Grading

1.0 General

1.1 Intent

These General Earthwork and Grading Specifications are for the grading and earthwork shown on the approved grading plan(s) and/or indicated in the geotechnical report(s). These Specifications are a part of the recommendations contained in the geotechnical report(s). In case of conflict, the specific recommendations in the geotechnical report shall supersede these more general Specifications. Observations of the earthwork by the project Geotechnical Consultant during the course of grading may result in new or revised recommendations that could supersede these specifications or the recommendations in the geotechnical report(s).

1.2 The Geotechnical Consultant of Record

Prior to commencement of work, the owner shall employ a qualified Geotechnical Consultant of Record (Geotechnical Consultant). The Geot echnical Consultant shall be responsible for reviewing the approved geotechnical report(s) and accepting the adequacy of the preliminary geotechnical findings, conclusions, and recommendations prior to the commencement of the grading.

Prior to commencement of grading, the Geotechnical Consultant shall review the "work plan" prepared by the Earthwork Contractor (Contractor) and schedule sufficient personnel to perform the appropriate level of observation, mapping, and compaction testing.

During the grading and earthwork operations, the Geotechnical Consultant shall observe, map, and document the subsurface exposures to verify the geotechnical design assumptions. If the observed conditions are found to be significantly different than the interpreted assumptions during the design phase, the Geotechnical Consultant shall inform the owner, recommend appropriate changes in design to accommodate the observed conditions, and notify the review agency where required.

The Geotechnical Consultant shall observe the moisture-conditioning and processing of the subgrade and fill materials and perform relative compaction testing of fill to confirm that the attained level of compaction is being accomplished as specified. The Geotechnical Consultant shall provide the test results to the owner and the Contractor on a routine and frequent basis.

1.3 The Earthwork Contractor

The Earthwork Contractor (Contractor) shall be qualified, experienced, and knowledgeable in earthwork logistics, preparation and processing of ground to receive fill, moisture- conditioning and processing of fill, and compacting fill. The Contractor shall review and accept the plans, geotechnical report(s), and these Specifications prior to commencement of grading. The Contractor shall be solely responsible for performing the grading in accordance with the project plans and specifications. The Contractor shall prepare and submit to the owner and the Geotechnical Consultant a work plan that indicates the sequence of earthwork grading, the number of “equipment” of work and the estimated quantities of daily earthwork General Earthwork and Grading Specifications for Rough Grading Page 1 contemplated
for the site prior to commencement of grading. The Contractor shall inform the owner and the
Geotechnical Consultant of changes in work schedules and updates to the work plan at least 24 hours in advance of such changes so that appropriate personnel will be available for observation and testing. The Contractor shall not assume that the Geotechnical Consultant is aware of all grading operations.

The Contractor shall have the sole responsibility to provide adequate equipment and methods to accomplish the earthwork in accordance with the applicable grading codes and agency ordinances, these Specifications, and the re commendations in the approved geotechnical report(s) and grading plan(s). If, in the opinion of the Geotechnical Consultant, unsatisfactory conditions, such as unsuitable soil, improper moisture condition, inadequate compaction, insufficient buttress key size, adverse weather, etc., are resulting in a quality of work less than required in these specifications, the Geotechnical Consultant shall reject the work and may recommend to the owner that construction be stopped until the conditions are rectified. It is the contractor’s sole responsibility to provide proper fill compaction.

2.0 Preparation of Areas to be Filled

2.1 Clearing and Grubbing

Vegetation, such as brush, grass, roots, and other deleterious material shall be sufficiently removed and properly disposed of in a method acceptable to the owner, governing agencies, and the Geotechnical Consultant.

The Geotechnical Consultant shall evaluate the extent of these removals depending on specific site conditions. Earth fill material shal l not contain more than 1 percent of organic materials (by volume). Nesting of the organic materials shall not be allowed.

If potentially hazardous materials are encountered, the Contractor shall stop work in the affected area, and a hazardous material speciali st shall be informed immediately for proper evaluation and handling of these materials prior to continuing to work in that area.

As presently defined by the State of California, most refined petroleum products (gasoline, diesel fuel, motor oil, grease, coolant, etc.) have chemical constituents that are considered to be hazardous waste. As such, the indiscriminate dumping or spillage of these fluids onto the ground may constitute a misdemeanor, punishable by fines and/or imprisonment, and shall not be allowed. The contractor is responsible for all hazardous waste relating to his work. The Geotechnical Consultant does not have expertise in this area. If hazardous waste is a concern, then the Client should acquire the services of a qualified environmental assessor.

2.2 Processing

Existing ground that has been declared satisfactory for support of fill by the Geotechnical Consultant shall be scarified to a minimum depth of 6 inches. Existing ground that is not satisfactory shall be over-excavated as specified in the following section. Scarification shall continue until soils are broken down and free of oversize material and the working surface is reasonably uniform, flat, and free of uneven features that would inhibit uniform compaction.

General Earthwork and Grading Specifications for Rough Grading Page 2

2.3 Ove
r-excavation

In addition to removals and over-excavations recommended in the approved geotechnical report(s) and the grading plan, soft, loose, dry, saturated, spongy, organic-rich, highly fractured or otherwise unsuitable ground shall be over-excavated to competent ground as evaluated by the Geotechnical Consultant during grading.

2.4 Benching

Where fills are to be placed on ground with slopes steeper than 5:1 (horizontal to vertical units), the ground shall be stepped or benched. Pl ease see the Standard Details for a graphic illustration. The lowest bench or key shall be a minimum of 15 feet wide and at least 2 feet deep, into competent material as evaluated by the Geotechnical Consultant. Other benches shall be excavated a minimum height of 4 feet into competent material or as otherwise recommended by the Geotechnical Consultant. Fill placed on ground sloping flatter than 5:1 shall also be benched or otherwise over-excavated to provide a flat subgrade for the fill.

2.5 Evaluation/Acceptance of Fill Areas

All areas to receive fill, including removal and processed areas, key bottoms, and benches, shall be observed, mapped, elevations recorded, and/or tested prior to being accepted by the Geotechnical Consultant as suitable to receive fill. The Contractor shall obtain a written acceptance from the Geotechnical Consultant prior to fill placement. A licensed surveyor shall provide the survey control for determining elevations of processed areas, keys, and benches.

3.0 Fill Material

3.1 General

Material to be used as fill shall be essentia lly free of organic matter and other deleterious substances evaluated and accepted by the Geotechnical Consultant prior to placement. Soils of poor quality, such as those with unacceptable gradation, high expansion potential, or low strength shall be placed in areas acceptable to the Geotechnical Consultant or mixed with other soils to achieve satisfactory fill material.

3.2 Oversize

Oversize material defined as rock, or other irreducible material with a maximum dimension greater than 8 inches, shall not be buried or placed in fill unless location, materials, and placement methods are specifically accepted by the Geotechnical Consultant. Placement operations shall be such that nesting of oversized material does not occur and such that oversize material is completely surrounded by co mpacted or densified fill. Oversize material shall not be placed within 10 vertical feet of finish grade or within 2 feet of future utilities or underground construction.

General Earthwork and Grading Specifications for Rough Grading Page 3

3.3 Import

If importing of fill material is required for grading, proposed import material shall meet the requirements of the geotechnical consultant. The potential import source shall be given to the Geotechnical Consultant at least 48 hours (2 working days) before importing begins so that its suitability can be determined and appropriate tests performed.

4.0 Fill Placement and Compaction

4.1 Fill Layers

Approved fill material shall be placed in areas prepared to receive fill (per Section 3.0) in near-horizontal layers not exceeding 8 inches in loose thickness. The Geotechnical Consultant may accept thicker layers if testing indicates the grading procedures can adequately compact the thicker layers. Each layer shall be spread evenly and mixed thoroughly to attain relative uniformity of material and moisture throughout.

4.2 Fill Moisture Conditioning

Fill soils shall be watered, dried back, blended, and/or mixed, as necessary to attain a relatively uniform moisture content at or slightly over optimum. Maximum density and optimum soil moisture content tests shall be performed in accordance with the American Society of Testing and Materials (ASTM Test Method D1557).

4.3 Compaction of Fill

After each layer has been moisture-conditioned, mixed, and evenly spread, it shall be uniformly compacted to not less than 90 percent of maximum dry density (ASTM Test Method D1557). Compaction equipment shall be adequately sized and be either specifically designed for soil compaction or of proven reliability to efficiently achieve the specified level of compaction with uniformity.

4.4 Compaction of Fill Slopes

In addition to normal compaction procedures specified above, compaction of slopes shall be accomplished by backrolling of slopes with sheepsfoot rollers at increments of 3 to 4 feet in fill elevation, or by other methods producing satisfactory results acceptable to the Geotechnical Consultant. Upon completion of grading, relative compaction of the fill, out to the slope face, shall be at least 90 percent of maximum density per ASTM Test Method D1557.

4.5 Compaction Testing

Field tests for moisture content and relative compaction of the fill soils shall be performed by the Geotechnical Consultant. Location and frequency of tests shall be at the Consultant's discretion based on field conditions encountered. Compaction test locations will not necessarily be selected on a random basis. Test locations shall be selected to verify adequacy of compaction levels in areas that are judged to be prone to inadequate compaction (such as close to slope faces and at the fill/bedrock benches).

General Earthwork and Grading Specifications for Rough Grading Page 4

4.6 Frequency of Compaction
Testing

Tests shall be taken at intervals not exceeding 2 feet in vertical rise and/or 1,000 cubic yards of compacted fill soils embankment. In addition, as a guideline, at least one test shall be taken on slope faces for each 5,000 square feet of slope face and/or each 10 feet of vertical height of slope. The Contractor shall assure that fill construction is such that the testing schedule can be accomplished by the Geotechnical Consul tant. The Contractor shall stop or slow down the earthwork construction if these minimum standards are not met.

4.7 Compaction Test Locations

The Geotechnical Consultant shall document the approximate elevation and horizontal coordinates of each test location. The Contractor shall coordinate with the project surveyor to assure that sufficient grade stakes are established so that the Geotechnical Consultant can determine the test locations with sufficient accuracy. At a minimum, two grade stakes within a horizontal distance of 100 feet and vertically less than 5 feet apart from potential test locations shall be provided.

5.0 Subdrain Installation

Subdrain systems shall be installed in accordance with the approved geotechnical report(s), the grading plan, and the Standard Details. The Geotechnical Consultant may recommend additional subdrains and/or changes in subdrain extent, location, grade, or material depending on conditions encountered during grading. All subdrains shall be surveyed by a land surveyor/civil engineer for line and grade after installation and prior to burial. Sufficient time should be allowed by the Contractor for these surveys.

6.0 Excavation

Excavations, as well as over-excavation for remedial purposes, shall be evaluated by the Geotechnical Consultant during grading. Remedial removal depths shown on geotechnical plans are estimates only.

The actual extent of removal shall be determined by the Geotechnical Consultant based on the field evaluation of exposed conditions during grading. Where fill-over-cut slopes are to be graded, the cut portion of the slope shall be made, evaluated, and accepted by the Geotechnical Consultant prior to placement of materials for construction of the fill portion of the slope, unless otherwise recommended by the Geotechnical Consultant.

7.0 Trench Backfills

7.1 The Contractor shall follow all OHSA and Cal/OSHA requirements for safety of trench excavations.

7.2 All bedding and backfill of utility trenches sh all be done in accordance with the applicable provisions of Standard Specifications of Publ ic Works Construction. Bedding material shall have a Sand Equivalent greater than 30 (SE>30). The bedding shall be placed to 1 foot over General Earthwork and Grading Specifications for Rough Grading Page 5 General Earthwork and Grading Specifications for Rough Grading Page 6 the top of the conduit and densified by jetting. Backfill shall be placed and densified to a minimum of 90 percent of maximum from 1 foot above the top of the conduit to the surface.

7.3 The jetting of the bedding around the conduits shall be observed by the Geotechnical Consultant.

7.4 The Geotechnical Consultant shall test the trench backfill for relative compaction. At least one test should be made for every 300 feet of trench and 2 feet of fill.

7.5 Lift thickness of trench backfill shall not exceed those allowed in the Standard Specifications of Public Works Construction unless the Cont ractor can demonstrate to the Geotechnical Consultant that the fill lift can be compacte d to the minimum relative compaction by his alternative equipment and method.

Site Location
FIGURE 1
Site Location Map
July 2021 DATE
ENG. / GEOL.

PROJECT NO.

PROJECT NAME
SCALE

KMS / BPG
Not to Scale
Meritage - Las Posas
21138-01

4 INCH DIAMETER, SCHEDULE 40 PERFORATED

PVC PIPE TO FLOW TO DRAINAGE DEVICE PER

PROJECT CIVIL ENGINEER

SAND BACKFILL
(EXPANSION INDEX £ 20,
MAXIMUM 35% FINES)

NATIVE BACKFILL COMPACTED
TO MINIMUM 90% RELATIVE
COMPACTION PER ASTM1557-D
MINIMUM 1 CUBIC FOOT PER LINEAR FOOT

BURRITO TYPE SUBDRAIN, CONSISTING OF
3/4 INCH CRUSHED ROCK WRAPPED IN
MIRAFI 140N OR APPROVED EQUIVALENT

FOOTING/WALL PER DESIGN ENGINEER

WATER PROOFING PER DESIGN ENGINEER
12" MINIMUM
18" MAXIMUM

BACKCUT PER OSHA

EXTENT OF FREE DRAINING SAND BACKFILL, MINIMUM
HEEL WIDTH OR H/2 WHICH EVER IS GREATER

WALL HEIGHT, H
NOTE:

PLACEMENT OF SUBDRAIN

AT BASE OF WALL WILL NOT

PREVENT SATURATION OF SOILS

BELOW AND / OR IN FRONT OF WALL
FIGURE 2
Retaining Wall
Backfill Detail
July 2021 DATE
ENG. / GEOL.

PROJECT NO.

PROJECT NAME
SCALE

KMS/BPG
Not to Scale
Meritage - Las Posas
21138-01

BLDG. NO. 12
P=575.5
FF=574.4
BLDG. NO. 11
P=576.0
FF=576.75
P=575.0
FF=573.9
P=575.0
FF=575.75
P=575.5
FF=576.25
P=576.0
FF=576.75
BLDG. NO. 10
P=576.8
FF=577.5
BLDG. NO. 9
P=577.3
FF=578.0
P=576.3
FF=576.5
P=576.8
FF=577.5
P=577.3
FF=578.0
P=577.8
FF=578.5
BLDG. NO. 8
P=579.5
FF=580.2
P=580.0
FF=580.7
P=580.5
FF=581.2
BLDG. NO. 6
P=582.9FF=583.6
P=582.4FF=583.1
P=583.4FF=584.1
BLDG. NO. 7
P=582.7FF=583.4
BLDG. NO. 5P=581.6FF=582.3
P=581.1FF=581.8
P=582.1FF=582.8
BLDG. NO. 4P=579.8FF=580.5
P=580.3FF=581.0
P=579.3FF=580.0
BLDG. NO. 3P=579.3FF=580.0
P=579.8FF=580.5
P=578.8FF=579.5
BLDG. NO. 2
P=578.3
FF=579.0
P=578.8
FF=579.5
P=577.8
FF=578.5
P=577.3
FF=578.0 P=577.8
FF=578.5BLDG. NO. 1 P=578.3
FF=579.0
P=576.9FF=577.6
BLDG. NO. 16
P=573.5FF=574.25
BLDG. NO. 15
P=573.0FF=573.75
P=573.0FF=573.75
P=574.0FF=574.75
P=573.5FF=574.25
BLDG. NO. 14
P=574.0FF=574.75
P=576.3FF=577.0BLDG. NO. 13
P=575.8FF=576.5
P=576.8FF=577.5
P=577.3FF=578.0
M
M
VAULT

3.500sf
MW
MW
567.5BTM
574.5TOP
M
M
VAULT
2,100sf
565.0BTM
572.0TOP
MW
HS-6
T.D. = 6.5'
HS-1
T.D. = 6'
HS-2
T.D. = 15.5'
HS-3
T.D. = 6.5'
HS-4
T.D. = 6.5'
HS-5
T.D. = 6.5'
TP-1
TP-2
TP-3
TP-4
I-2
T.D. = 9'
I-1
T.D. = 9'
I-3
T.D. = 9'
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?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
??
?
?
?
?
?
?
?
?
?
TP-1
HS-6
T.D. = 6.5'
I-3
T.D. = 9'
z
z
z
z ?
afo
afo
afo
Qoa
LEGEND
Artificial Fill - Older, Circled Where Buried
Quaternary Older Alluvium Undifferentiated,
Circled Where Buried
Approximate Location of Geologic
Contact; Dotted Where Buried, Queried
Where Uncertain
Approximate Location of Hollow Stem
Auger Boring by LGC Geotechnical, With
Total Depth in Feet
Approximate Location of Hollow Stem
Auger Infiltration Boring by LGC
Geotechnical, With Total Depth in Feet
Approximate Location of Exploratory Test
Pit by LGC Geotechnical, With Total
Depth in Feet
Approximate Limits of This Report
afo
Qoa
TP-5
Qoa
Qoa
LGC Geotechnical, Inc.
131 Calle Iglesia, Ste. 200
San Clemente, CA 92672
TEL (949) 369-6141 FAX (949) 369-6142
SHEET
1 of 1 DATE
SCALE

PROJECT NAME
PROJECT NO.

ENG. / GEOL.

Geotechnical Map
July 2021

KMS / BPG
1" = 40'
Meritage - Las Posas
21138-01