San Mateo City Council
November 18, 2024

6.7 Overturning - Priority 3 6.12 Other Items Noted
The ratio of the least horizontal dimension of the There is evidence of water stains on acoustical tile lateral force resisting system at the base to the ceiling which may indicate leaks in the roofing and the building height (length/height) must be greater than potential for damage in structural members due to

0.6 times the spectral response acceleration. This water. The leaks were not widespread and are likely check is for localized concentrations of forces in only in localized areas. foundation elements and soils. If there are well- The building's irregular shape and height offsets connected ties between lateral elements, then creates some possible reentrant corners. Some a larger horizontal dimension can be used and conditions may not be an issue where there are walls this deficiency is likely mitigated. This deficiency on all sides to help reduce lateral deflection and has a high likelihood to be mitigated by either damage, while other conditions with large windows demonstrating that there is a connecting element may act more flexible and could experience more capable of transferring the required seismic forces damage. This would be studied further in Tier 2. between lateral elements or through calculations to
check the foundations and soils. This would be done
in Tier 2.

6.8 Liquefaction - Priority 3
As noted in section 4.2, the site lies within a zone of potential liquefaction. No soils information is known
nor has a recent geotechnical investigation been
performed.

6.9 Diaphragm Continuity - Priority 3
The diaphragms are composed of split-level floors
and have differences in elevations. Split-level floors
and roofs create discontinuities in the diaphragm and
can lead to increased lateral deflection and reduced
stability if the diaphragm is not supported on at least 3 sides.

6.10 Roof Chord Continuity - Priority 3
Chord elements are not continuous through changes
in roof elevation. Diaphragms with discontinuous
chords are more flexible and could experience more
damage around the perimeter than properly detailed
diaphragms.

6.11 Cross Ties - Priority 3
Continuous cross-ties between diaphragm chords
are not present due to the offsets in height between
roof levels. Cross ties are needed to develop out-of-
plane wall forces into the diaphragm and to help keep
the walls from separating from the building.

San Mateo MLK Community Center Resiliency and Feasibility Study 55 7 Conclusions
The existing community center does not meet
Possible Post Earthquake Performance. A reinforced
building meeting Collapse Prevention performance
level could see crushing and extensive cracking in
the masonry walls. Wood walls could see damage and
significant lateral deflection. There could be damage
around openings and at corners. Secondary elements
such as windows and doors could be shattered
and stucco finishes could have extensive cracking.

There could be extensive permanent drift and
extensive damage to nonstructural elements. MLK
Jr. Community Center is nearly 56 years old; seismic
demands have increased and detailing demands
have become more stringent since the original
construction. Retrofits are suggested to meet the
Structural Performance Level (see Appendix A)
A Tier 2 should be performed. The Tier 1 criteria are
conservative. Some of the non-compliant structural
items may be shown to be compliant by a Tier 2
evaluation.

Thank you for the opportunity to be of service.

Please call with any questions.

IDA Structural Engineers, Inc.
lan Dickson
Elliott Goodwin, P.E.

Stephen DeJesse, S.E.

President
56 /Son Antonio Ava Poly Am Masonn
& Concrete
4000m0i 1 Framont St
Claire's Crunch Cake
San Antonio Ava Santa Inez
Intelligent Leaming
N Ptemont So
Luther
Park AME
E San
Dr. Martin Luthen King
Pot tenti Unlimited Jr. Community Center
Homes
N Delavare St N Eldorado St King Pool Ri Fremont St
N Foment Sul
3 Sala evangélica del
la sana doctrina
N Delo
Figure 1. Proximity map of site
San Mateo MLK Community Center Resiliency and Feasibility Study 57 DR. MARTIN LUTHER KING
•JR. COMMUNITY CENTER

C (ROOF ACCESS LEVEL)

B D (HIGHEST ROOF LEVEL)

KEY MAP
SCALE: N.T.S.

Figure 2. Site Plan
58 Figure 3. Aerial View
San Mateo MLK Community Center Resiliency and Feasibility Study 59 Address: 725 HOTE CHASIO AVE
Da 08 3000
125 MONTE DIABLO ANE
The parcel i NOT WITHh an
Earthquake Paul Zona
The portel l NOT WITHIN
Address: 725 MONTE DIABLO AVE
APN 033063060
City SAN MATEO
Address 725 MONTE DIABLO AVE
Fault Zone This parcel is NOT WITHIN an
Earthquake Fault Zone.

Liquefaction All or a portion of this parcel
Zone LIES WITHIN a Liquefaction
Zone.

Landslide This parcel is NOT WITHIN a
Zone Landslide Zone.

Zoom to ...

Figure 4. CGS Zoning Map of Seismic Hazards
60 Figure 5. View of Building from Pools Looking Towards High Roof San Mateo MLK Community Center Resiliency and Feasibility Study 61 Figure 6. Image of Auditorium
62 5b. Appendix A
(IDA) STRUCTURAL ENGINEERS
San Mateo MLK Community Center Resiliency and Feasibility Study 63 64 Structural Cost Estimate Narrative and Conceptual Retrofits Structural Improvements Narrative
This document provides a preliminary narrative for structural improvements to the Martin Luther King Jr.

Community Center. The intent with these descriptions is to inform a preliminary cost estimate.

Basis of these improvements is:
• an ASCE 41-17 Tier 1 analysis. This analysis is ongoing. The improvements are sorted in to buckets based on structural priority. The Basic Performance Objective for Existing Buildings was used as the basis for the analysis. More information will be provided in a Tier 1 report to be issued in March 2024. • observations made in the field based on the existing condition of the structure that are outside the scope of an ASCE 41 analysis.

San Mateo MLK Community Center Resiliency and Feasibility Study 65 Item 1 - Modify existing wall anchorage at existing CMU walls (Priority 1) Provide new plate and new bolts through existing framing at perimeter of CMU walls shown red dashed below. 441
-8 cem.mortar 12-*5
ratter 10de 4"
JH@48'
= 48" Add (N) 1/4" plate at
S (E) L6x3. Undo (E)
3/4" bolt, install (N)
plate and reinstall bolt.

Add (2) new 3/4" dia
thru bolts at 6" o.c. so
that the plate has (3)
bolts total into rafter,
(1) existing, (2) new
_sice
66 Item 2 - Add sheathing around openings and straps at shear walls (Priority 2) Provide new sheathing and/or nailing around existing openings unless already sheathed. Add straps above and below openings in and adjacent to existing narrow shear walls.

NOATH WALL FRAMING: MULTI PURPOSE NºE
San Mateo MLK Community Center Resiliency and Feasibility Study 67 Item 3 - Re-sheath Multipurpose room roof (Priority 2)
Add new 5/8" sheathing over existing sheathing in the shaded area shown. 68 Item 4 - Add nailing and new tie-downs at wood shear walls (Priority 2) Add new nailing at existing plywood sheathed and wood framed walls. At plywood sheathed walls without tiedowns, add a new tiedown at each end of wall and attach to either new or existing 4x6 posts continuous from sill plate to top plate. New tiedowns shall be drilled and epoxied into existing foundations.

San Mateo MLK Community Center Resiliency and Feasibility Study 69 Item 5 - Provide new straps over multipurpose room roofs (Priority 2) Install new straps across (E) 3x12 framing over multipurpose room roofs. *47
Provide
straps over
framing at L
(E(e) 3x12 typ
in this areal
raps ove
traming at
(e) 3x12 typ
in this area l
70 5C. Appendix B
(IDA) STRUCTURAL ENGINEERS
San Mateo MLK Community Center Resiliency and Feasibility Study 71 72 Building Checklists and Quick Check Calculations
Date: 02/27/2024 Page:

By: ITD Job#: 23076
Project: MLK Jr. Community Center
MLK Jr. Community Center
ASCE 41-17 Tier 1
Evalute the BPOE with the BSE-2E at S-5 Structural Performance Level (Collapse Prevention) and N-D Non structural performance Level (Hazards Reduced)
Compliance with BSE-2E implies compliance with BSE-1E 3-C Performance Objective (Life Safety Structural Non structural)
Seismic Parameters for Performance Objectives:

Per Seismic Design Maps and ASCE 41-17:

S, := 1.706
S, := 0.686
Sxs:= 2.047
Sxy:= 1.165
Building type W1 / RM1
San Mateo MLK Community Center Resiliency and Feasibility Study 73 2/21/24, 4:29 PM U.S. Seismic Design Maps
USGS web services were down for some period of time and as a result this tool wasn't operational, resulting in timeout error.

USGS web services are now operationa so this too should work as expected OSHPD
MLK Jr. Community Center
725 Monte Diablo Ave, San Mateo, CA 94401, USA
Latitude, Longitude: 37.5736226, -122.3246579
Claire's Crunch Cake
N Delaware St Martin Luther
N Claremont King Jr. Par
Monte Diablo Ave
†I Taqueria Los Primos #2 N Delaware St N Grant St Community Baptist Church
N. Eldorado* N Fremont St
Google Map data ©2024
Date 2/21/2024, 4:29:42 PM
Design Code Reference Document ASCE41-17
Custom Probability
Site Class D- Default (See Section 11.4.3)
Type Description Value
Hazard Level BSF-2N
Ss spectral response (0.2 s) 1.842
spectral response (1.0 s) 0.754
Sxs site-modified spectral response (0,2 s) 2.21
Sx1 site-modified spectral response (1.0 s) 1.282
Fa site amplification factor (0,2 s) 1.2
site amplification factor (1.0 s) 1.7
ssuh max direction uniform hazard (0.2 s) 2461
crs coefficient of risk (0.2 s) 0.897
ssrt risk-targeted hazard (0.2 s) 2.206
ssd deterministic hazard (0.2 s) 1.842
s1uh max direction uniform hazard (1.0 s) 1.029
cr1 coefficient of risk (1.0 s) 0,886
s1rt risk-targeted hazard (1.0 s) 0,911
s1d deterministic hazard (1,0 s) 0,754
Type Description Value
Hazard Level BSE-1N
Sxs site-modified spectral response (0.2 s) 1.474
Sx1 site-modified spectral response (1.0 s) 0.855
https://www.seismicmaps.org 1/2
74 2/21/24, 4:29 PM U.S. Seismic Design Maps
Type Description Value
Hazard Level BSE-2E
Ss spectral response (0.2 s) 1.706
spectral response (1.0 s) 0,686
Sxs site-modified spectral response (0.2 s) 2.047
Sx1 site-modified spectral response (1,0 s) 1,165
site amplification factor (0.2 s) 1.2
site amplification factor (1.0 s) 1.7
Type Description Value
Hazard Level BSE-1E
Ss spectral response (0.2 s) 0.793
spectral response (1.0 s) 0,291
Sxs site-modified spectral response (0.2 s) 0.951
Sx1 site modified spectral response (1,0 s) 0,587
Fa site amplification factor (0.2 s) 1.2
Fr site amplification factor (1.0 s) 2.018
Type Description value
Hazard Level TL Data
T-Sub-L Long-period transition period in seconds 12

DISCLAIMER
While the information presented on this website is believed to be correct, SEAOC/OSHPD and its sponsors and contributors assume no responsibility or liability for its accuracy. The material presented in this web application should not be used or relied upon for any specific application without competent examination and verification of its accuracy, suitability and applicability by engineers or other licensed professionals. SEAOC / OSHPD do not intend that the use of this information replace the sound judgment of such competent professionals, having experience and knowledge in the field of practice, nor to substitute for the standard of care required of such professionals in interpreting and applying the results of the seismic data provided by this website. Users of the information from this website assume all liability arising from such use. Use of the output of this website does not imply approval by the governing building code bodies responsible for building code approval and interpretation for the building site described by latitude/longitude location in the search results of this website. https://www.seismicmaps.org 2/2
San Mateo MLK Community Center Resiliency and Feasibility Study 75 Date: 02/27/2024 Page:

By: ITD Job #: 23076
DA Project: MLK Jr. Community Center
Determine T
Coefficient to determine building period C,:= 0.020
Height in feet above the base to the roof level h,:= 15 ft B: = 0.75
Fundamental period of vibration of the building, = 0.152 calculated in accordance with Section 4.5.2.4
Per 7.2.3.6, beta (damping) is the default 5% B:= 0.05
Per 2.4.1.7.1, horizontal response spectrum B, = (5.6 - In (100-B)) = 1.002 For periods between T0 and long period (i.e
along the flat line), Spectral Response
Acceleration uses this ean: Sa:= Sxs = 2.04
Ts:= Sx =0.57
Sxs
To: =0.2.. SxI=0.11
Sxs
Periods shorter than TO not allowed to be
used, unless dynamic analysis
P: 12023 JOBS\23076 Joinville and MLK Community Center Assessments\20-29 Engineering\21 Calculations\21.03 Tier 1 Cals\MLK - Tier 1 calcs.mcdx Created with PTC Mathcad Express. See www.mathcad.com for more information. 76 Date: 02/27/2024 Page:

By: ITD Job #: 23076
DA
Project: MLK Jr. Community Center
0 0.4 • Sxs.

Sxs
B, 0.82
Sys 0.11 2.04
Response Spectra BSE2N :=

0.57 2.04
B, 1.16]
SxI
B,
Leave off tail to Tr
Period - ma(Responsera) 10.15 204]
22-
5 6 5 N
ResponseSpectra BSEN*

0.6-
Period?)

0.4-

0.2-

0.1 ResponseSpectra BEaN"
Period!)
P: 12023 JOBS\23076 Joinville and MLK Community Center Assessments\20-29 Engineering\21 Calculations\21.03 Tier 1 Cals\MLK - Tier 1 calcs.mcdx Created with PTC Mathcad Express. See www.mathcad.com for more information.

San Mateo MLK Community Center Resiliency and Feasibility Study 77 Date: 02/27/2024 Page:

By: ITD Job #: 23076
DA
Project: MLK Jr. Community Center
Torsion:

Estimated distance btwn story center of mass and story center of rigidity not less than 20% of the building width in either direction
Due to the irregular shape and layout of the building, the distance between center of mass and center of rigidity is expected as greater than 20% of the building width by inspection.

Therefore Torsion Deficiency Exists.

Overturning:

Minimum horizontal dimension of CMU shear walls
length:= 17.5 ft Lots of length of masonry shear walls. Choose shorter shear walls at gym at very tall walls
h, =21 ft
Overturning:=if length " >16•5, "Complian", "Non Compliane') Overturning = "Non Compliant"
Therefore overturning deficiency exists.

P: \2023 JOBS\23076 Joinville and MLK Community Center Assessments\20-29 Engineering\21 Calculations\21.03 Tier 1 Cals\MLK - Tier 1 calcs.mcdx Created with PTC Mathcad Express. See www.mathcad.com for more information. 78 Date: 02/27/2024 Page:

By: ITD Job #: 23076
IDA Project: MLK Jr. Community Center
Reinforcing Steel:

0.2 in?
VertRatio:= - - = 0.0016 #4 @ 16" OC vert wall bars
16 in • 8 in

0.2 in?
HorizRatio:= -=0.0016 #4 @ 16" OC horiz wall bars
16 in • 8 in
TotalReinfRatio := if (VertRatio + HorizRatio > 0.002, "Compliant", "Non Compliant") TotalReinfRatio = "Compliant"
Minimum of 0.0007 in either direction is met. Spacing of reinf less than 48".

Therefore, compliant
San Mateo MLK Community Center Resiliency and Feasibility Study 79 Date: 02/27/2024 Page:

By: ITD Job #: 23076
IDA Project:

MLK Jr. Community Center
Narrow Wood Shear Walls
length:=6 ft taken as the shortest wood shear wall
height:= 17 ft height at auditorium at narrow wood shear walls height
AspectRatio:= = 2.83
length
status := if (AspectRatio > 2.0, "Non Compliant", "Compliant") status = "Non Compliant"
Therefore narrow wood shear wall deficiency exists.

P:12023 JOBS\23076 Joinville and MLK Community Center Assessments\20-29 Engineering\21 Calculations\21.03 Tier 1 Cals\MLK - Tier 1 calcs.mcdx 80 Date: 02/27/2024 Page:

By: ITD Job #: 23076
DA
Project: MLK Jr. Community Center
Shear Stress Check of Shear Walls:

Determine V, the pseudo lateral force from Equation 4-1. V is a function of • C, modification factor to relate expected maximum inelastic displacements to displacements calculated for linear elastic response; shall be taken from table 4-7
• Sa, the response spectral acceleration at the fundamentla period of the building in the diretion under consideration. Sa shall be calculated in accordance with Section 4.4.2.3
• W, the total dead load
From Weigh-Up:

Wroof:= 21 psf
Wwalls_CMU:=84 psf
walls_wood = 16 psf
1) Shear stress check of tall masonry walls at gym roof:

A roof trib:= 3593 ft
walls gym = 44 ft + 17.5 ft+ 17.5 ft + 28.5 ft + 19 ft+ 22 ft +24 ft=172.5 ft hwalls com = 21 ft
Wroof:= Wroor® Aroof trib=75.45 kip W walls trib googis walls er Wrals CMU-Lalls sm = 152,15 kip Floors:= 1 W:= Wroog+ Wwails rib 100g= 227.6 kip
Floors
Total seismic weight of W:= _w=227.6 kip
structure
San Mateo MLK Community Center Resiliency and Feasibility Study Sheet
Job No. 23076
SUODACIRAL ENCINEETES By ITD
Date 2024/Feb/27
Dr. Martin Luther King Jr Community Center - Tier 1 Analysis

DESIGN LOADS
Roof
Decking Joists Beams Seismic
-
Composition Roofing 4.0 4.0 4.0 4.0
3/4" Plywood 2.5 2.5 2.5 2.5
4x12 @ 48" OC 0.0 2.4 2.4 2.4
Beams and Columns 0.0 0.0 1.0 1.0
Acoustical Tile Ceilings 0.0 0.0 4.0 4.0
Partitions 0.0 0.0 0.0 5.0
Mech/Elec/Miscellaneous 2.0 2.0 2.0 2.5
Dead Load 9 11 16 21
Live Load 20 20 20
Total Load 29 31 36 21
CMU Walls
8" CMU Wall, fully grouted 84.0
Dead Load 84.0
82 Date: 02/27/2024 Page:

By: ITD Job #: 23076
D Project: MLK Jr. Community Center
Table 4-7. Modification Factor, C
Modification Factor for RM1 Number of Stories
Building Type® 1 2 3 ≥4

1.3 1.1 1.0 1.0
C:=1.0
CFS1)
Moment frame (S1, S3, C1.

PC2a)
Shear wall (S4, S5, C2, C3, 1.4 1.2 1.1 1.0
PC1a, PC2, RM2, URMa)
Braced frame (S2)
Cold-formed steel strap-brace
wall (CFS2)
reinforced masonry (URM) 1.0 1.0 1.0 1.0
exible diaphragms (S1
S2a, S5a, C2a, C3a, PC1,
RM1)
• Defined in Table 3-1.

Seismic force
Psuedo seismic force per 4.4.2.1 Eq. 4-1 V:= C•S"•W=464.79 kip factor per 4.4.2.2 k:= if (T>2.5,2, if(T≤0.5, 1, 0.5. T+0.75)) = 1 Story force Fx=V=464.79 kip
P: 12023 JOBS\23076 Joinville and MLK Community Center Assessments\20-29 Engineering\21 Calculations\21.03 Tier 1 Calcs\MLK - Tier 1 calcs.mcdx Created with PTC Mathcad Express. See www.mathcad.com for more information.

San Mateo MLK Community Center Resiliency and Feasibility Study 83 Date: 02/27/2024 Page:

By: ITD Job#: 23076
Project: MLK Jr. Community Center
Shear Stress Check:

System modification factor; shall be Table 4-8. M, Factors for Shear Walls taken from Table 4-8 Level of Performance
Wall Type cp° 10°
M, := 4.5
einforced concrete, precast 4 3.0 1.5
increte, wood, reinforce
masonry, and cold-formed
Uniforced masony 1.75 1.25 1.0
Determine summation of the horizontal cross-sectional area of all shear walls in the direction of loading. Openings shall be taken into consideration where computing.

For masonry walls, the net area shall be used.

Total area of masonry shear walls in north south direction AwNs:=8 in • (44 ft+28.5 ft) = 48.33 fi
Total area of masonry shear walls in east west direction AwEW:=8 in • (17.5 ft+ 17.5 ft+19 ft+22 ft+ 24 ft) = 66.67 fi Shear stress in shear walls VNS E- _.- -= 14.84 psi
in north south direction M, AWNS
Shear stress in shear walls VEW := -•- V_ = 10.76 psi
in east west direction AwEw
ShearStressCheck:= if (max (vvs, VEw) > 70 psi, "Non Compliant", "Compliant") = "Compliant" Therefore, masonry shear stress OK at gym
P: \2023 JOBS\23076 Joinville and MLK Community Center Assessments\20-29 Engineering\21 Calculations\21.03 Tier 1 Cals\MLK - Tier 1 calcs.mcdx Created with PTC Mathcad Express. See www.mathcad.com for more information. 84 San Mateo MLK Community Center Resiliency and Feasibility Study 85 14 3.0.8

GYM ROOF AREA
*4812' - *4e.0"
6a. way
5x10
2-3:8"
-*4012 sa. way
2710 548°
ZECTION AS2
Ses nete on B-52
„B'-10' 4'-0" 8'c.e.
cita
4-52
*4912
*ida, way 3x4b/kg. c46
#48I0" 2,120 48*
2712 442 2,12 048'
-*C
3,593.02 sf
L''' Forced A
. 1-2 Boyond
SECTION 8.52
Vote: pits and footings to be in
one pour. (No conséruction joints)
€-59
A:S
B-SS
L
37/00 48|
4712=48
2110 € 401
0-512
47100 48°
18x10
34102 63×10
(2-7N0 Inverted - inverted uH-
A51z 0-512
N
• =
86 4.240 Mise
E-S/O
*59l
370c48
•2°0w
3-10
3×10
A•59
A STO
3÷/204₴
oSiO
OPEN
A•SB
JH- Typ.
2048 A-SC
5%/
BxIC 1 4,72
G.2.
6-540 JH-Typ-
2x/2s48 34/2548 2xrsste 3x/2 3710048
13*12
(Tic • 7-1 -22.
0-5112
OPEN OpEN
-24- Typ
rents! JH Jex1o2
/2. 2010 3m.0
= Soil a leg

6.59 AMING PLAN
-101 NO
EASE 6107

COMMUNITY PARK CENTER

MATIO CALIF
J. ALBERT PAQUETTE E JAY MILLER & R. D. STEINER! 2/20/61 & ASSOCIATES

STRUCIURSU ARCHITECTS
417 %-1xET 220 918.2vE. SAN MATEO
San Mateo MLK Community Center Resiliency and Feasibility Study 87

GYM MASONRY SHEAR WALL LENGTHS
88 San Mateo MLK Community Center Resiliency and Feasibility Study 89 Date: 02/27/2024 Page:

By: ITD Job #: 23076
DA
Project: MLK Jr. Community Center
2) Shear stress check of masonry walls at main roof level:

Aroof trib:= 20727 ff +3593 fi' + 4130 ff = 28450 fi
walls cmu = 500 ft
halls: = 15 ft
Wroof = Wroof® Aroof_trib = 597.45 kip W walls _rib roof=- Awalls • Walls CMU-Lwalls cou= 315 kip Floors = 1 W:= Wroof+ Wwalls Irib_roof=912.45 kip w:=[w] Floors
Total seismic weight of W:= Ew=912.45 kip
i=l
structure
Modification Factor for RM1 C:=1.0
Seismic force
Psuedo seismic force per 4.4.2.1 Eq. 4-1 V:= C•S. •W= 1863.38 kip factor per 4.4.2.2 k:= if (T> 2.5,2, if (T≤0.5, 1, 0.5. T+0.75)) =1 Story force F,:= V=1863.38 kip
P: 12023 JOBS\23076 Joinville and MLK Community Center Assessments120-29 Engineering\21 Calculations\21.03 Tier 1 Calcs\MLK - Tier 1 calcs.mcdx Created with PTC Mathcad Express. See www.mathcad.com for more information. 90 Date: 02/27/2024 Page:

By: ITD Job#: 23076
Project: MLK Jr. Community Center
Shear Stress Check:

System modification factor; shall be
taken from Table 4-8
M, = 4.5
Determine summation of the horizontal cross-sectional area of all shear walls in the direction of loading. Openings shall be taken into consideration where computing.

For masonry walls, the net area shall be used.

Total area of masonry shear walls in north south direction AwNs: =8 in• (15 ft+30 ft+ 10ft+10 ft+11 ft+19 ft+16 ft+20 ft +9 ft) = 93.33 fi Total area of masonry shear walls in east west direction Awew:= 8 in• (15 ft+11.5 ft+7.5 ft+7.5 ft+14 ft+14.5 ft +13.5 ft+2•20 ft) = 82.33 fi V
Shear stress in shear walls VVS:=. -=30.81 psi
in north south direction M, AwNS
Shear stress in shear walls VEw:=
in east west direction
ShearStress Check := if (max (Vvs, VEw) > 70 psi, "Non Compliant", "Compliant") = "Compliant" Therefore, masonry shear stress OK
P: \2023 JOBS\23076 Joinville and MLK Community Center Assessments\20-29 Engineering\21 Calculations\21.03 Tier 1 Cals\MLK - Tier 1 calcs.mcdx Created with PTC Mathcad Express. See www.mathcad.com for more information.

San Mateo MLK Community Center Resiliency and Feasibility Study 91

ROOF AREAS FOR WOC

MASONRY SHEAR WAL
+4812"- ·4612'
sa. way
*4810 ea. Was
2-3'8"
-*48/2 sa. way
SECTION A5Z
4-0"
*4812-
sea way #G
Bx12s48'
opening- Typ.

So Fleer 27/zcté 212040°
my sexie
- *C
14x/2
L'l- THESE AREAS ARE
_1-2_ Bovend OVER WOOD SHEAF
SECTION B.S2 are WALLS
ote: sits and footings to be in
one pour. (No construction joints. 6312

THESE IS AREA

OVER MASONRY
SHEAR WALLS 4z10 c 4g°
A•SIZ 0.212 e5l2
B-55 L
3x/0948
Sp/oe te 4712048
4,640.24 sf
D.5/2 camber es
12-9 5/2
L
340 C 48'
OPEN
(3x0
3x/02
inverted Ja- verted JH-
(2-3N10
c-312 3.S12
92 D SHEAR WALLS AND
LS
10 250 2591
rider to st
ASTo
3×12:48
Exist G8048 3:510
L = 1,008'-10 1/4"
A = 16,078.32 sf
4 до
+8
8×10
L = 281'-3 1/2"
UH- Typ-
*A = 4,130.88 sf 34N64G305 3×10848
12240 11 8
(2-2710*22.0
(3x/0
OPEN
inverted unl
= fonta leg

6.59 AMING PLAN
PARK 6107
-CENTER
J. ALBERT PAQUETTE E JAY MILET & R. D, STEINET 4120/08

ARCHITECTS
STRES
SENNATED 115-2
San Mateo MLK Community Center Resiliency and Feasibility Study 93 .: 7.7
•WOOD SHEAR WALL LENGTHS o
r.A0.5:

E1227 -28'-5"-
LEGEND:

INDICATES WOOD SHEAR
WALL IN EITHER DIRECTION FIN. FL.

C-5I0
areá on en
-axe
3-15 each wou
over
7o0 of slab -0-21
same
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02020 11-0
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40. 0' 22-8' z0:0
FOOTiNG $ FLOOR 5- 1
All dimansions ars to face are of
sections for relation
All studs are none 00453? All stues ars axouiciunless
as indicates concrete blocks
To indicates Tis. DowniSee detail
F.o.s. inclicates face of nee of stuás
kos. indicates
94 CATION AR

THESE WALLS IN THESE WALLS IN

NOW DIRECTION E/V DIRECTION IS

MATHCAD - MATHCAD
- 15'-6" 6057 1 5
411'-0"
3470.9
+20'-6" -9'-9"-
2o2t-Cel-
$ 01 SUMMATION OF

THESE WALLS IN

E/ DIRECTION IS
"LINE 2' IN
1755-5
PINI A057, 1
13n3 or 2

14. 8
Planting
A-58L
42'-
- SUMMATION OF

THESE WALLS IN

E/ DIRECTION IS
"LINE 3" IN
6'-0" 6'-3" ~ 13401 MATHCAD
22'-10"
FIN. PU ELEv. =ó-d

20.!" Need over 4'siab 22'
Top oF 310b : 0-38
FIN ELev $010

SUMMATION OF
• E/W DIRECTION IS
9'-8"→ fol "LINE 4' IN
2-91
14g. 48'-8"→ 148-5"+
20'-6" -18'-10"

CHMMATION NE
- THESE WALLS IN i. Aos.

NW DIRECTION (є-s"

MATHCAD

FRAMING PLAN
tune concate bianca face
-ace
s-3.o from finish floor unless notad. baol
thus
EAST
= biocks. COMMUNITYRARK
CENTER
:4/20/s
ALBERT PAQUETTE E JAY MILLER & R. D. STEINER
& ASSOCIATES ARCHITECIS
StRaCe
220 S- I
San Mateo MLK Community Center Resiliency and Feasibility Study 95 Date: 02/27/2024 Page:

By: ITD Job#: 23076
DA Project:

MLK Jr. Community Center
3) Shear stress check of wood shear walls:

Aroof trib:= 16078 fi +4130 f8 = 20208 fi
walls _wood:= 1008 ft+282 ft=1290 ft
hwalls:= 15 ft
hwalls
Wroof:= Wroof• Aroof trib = 424.37 kip W walls Irib rooj:=- -• Wwalls_wood• Lwalls_wood = 154.8 kip 2 Floors = 1 W:= Wroof + Wwalls Irit roof=579.17 kip W==[w] Total seismic weight of W:= [W = 579.17 kip
structure
Modification Factor for W1 C:= 1.3
Seismic force
Psuedo seismic force per 4.4.2.1 Eq. 4-1 V:= C•S,• W= 1537.59 kip factor per 4.4.2.2 k:= if(T>2.5,2, ifT≤0.5, 1, 0.5• T+0.75)) = 1 Story force F.:= V=1537.59 kip
P: 12023 JOBS\23076 Joinville and MLK Community Center Assessments120-29 Engineering\21 Calculations\21.03 Tier 1 Calcs\MLK - Tier 1 calcs.mcdx Created with PTC Mathcad Express. See www.mathcad.com for more information. 96 Date: 02/27/2024 Page:

By: ITD Job#: 23076
Project: MLK Jr. Community Center
Shear Stress Check:

System modification factor; shall be
taken from Table 4-8
M, = 4.5
Determine summation of the horizontal cross-sectional area of all shear walls in the direction of loading. Openings shall be taken into consideration where computing.

For masonry walls, the net area shall be used.

Total area of wood shear walls in north south direction AWNS_4=36.5 ft+2•9.75 ft+22 ft+22 ft =100 ft
AWNS_B:= 12 ft + 19 ft + 12.5 ft+ 21 ft+ 17 ft=81.5 ft
AwNs:= 4wNS_1+4WNS_B=181.5 ft
Total area of wood shear walls in east west direction
AWEW_1=28 ft+ 11 ft+ 15.5 ft+ 9.5 ft =64 ft
AwEW 2=20.5 ft +9.5 ft+6 ft =36 ft
AwEW 3:=7.25 ft +6.75 ft+6 ft+6 ft+13 ft+21 ft+15.5 ft=75.5 ft AWEW 4=27 ft+ 20.5 ft + 18.75 ft + 8.5 ft+ 8.5 ft=83.25 ft EW:=AwE_1+AwW2+AwEW3+ANEW_1=258.75 ft
1 V
Shear stress in shear walls VNS E -•- -= 1882.57 plf
in north south direction AwNs
Shear stress in shear walls VEW:=- -= 1320.53 plf
in east west direction
ShearStress Check := if (max (Vvs, Vew) > 1000 plf, "Non Compliant", "Compliant") = "Non Compliant" Therefore, wood shear stress deficiency is present
P: \2023 JOBS\23076 Joinville and MLK Community Center Assessments\20-29 Engineering\21 Calculations\21.03 Tier 1 Cals\MLK - Tier 1 calcs.mcdx Created with PTC Mathcad Express. See www.mathcad.com for more information.

San Mateo MLK Community Center Resiliency and Feasibility Study 97

ROOF AREAS FOR WOC
2-8 „°

MASONRY SHEAR WAL
*48/2' ві ст
- $4612"
Ga, way ea. way
2-3'8"
- *4 s/2 ea. way
2x10 e48'
SECTION A52
see note on B-52
„B-10" L8'c.B.
c7-1
*4012
14510 -#4CIC" 3[120 48
2x12 c te s=1z ete
- 76
• e12

THESE AREAS ARE

OVER WOOD SHEAF
SECTION 8.52 are WALLS
Note: Pits and footings to be in
one pour. (No construction joints) € 512

THESE IS AREA

OVER MASONRY
SHEAR WALLS 4010 c40°
0•56
B-SS
5710050 4x12 = 48
4,640.24 sf
3x0 e 40°
10-512
5110048 3×10 с 48°
18y9
C3x0
7/54+0฿08. 03x0
inverted Ja
c-5/z 3-512

ROOF ER
98 D SHEAR WALLS AND
LS
e-52j
8-59
3710c40
see to pist
3x1334฿
L = 1,008'-10 1/4"
A.= 16,078.32 sf
8×10 14/120
L = 281'-3 1/2"
A = 4,130.88 sf 34x04G3048 2w0048
or and nige
6+10 12-2401
2>0*22.0°
10:54.1136r 1al G.x.

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6.54 AMING PLAN
EAST 6707

COMMUNITY ARTER
MATRO:

J. ALBERT PAQUETTE • JAY MILLER & R. D. STEINER:| z/20/a8

ASSOCIATES

STRUCIUFSU ENGINEERS ARCHITECTS
220 3r AVE SAN MATIO 15.2
San Mateo MLK Community Center Resiliency and Feasibility Study 99

MASONRY SHEAR WALL LENGTHS
LEGEND:

INDICATES MASONRY SHEAR
NALL IN EITHER DIRECTION BIN. FL FINAL 72-0
e-5Io
sure
S.40400g
5-m cachi
20:0"
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30'-g"
'7'-6"
Pati
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15'-4
A-S
¿ col
22-8

FOOTING A BLOOR
All dimansions
All studs ars
elevation of botiom of footings
Cainaisates concreto blocks
To indicates Tis. Downisee doto
F.o.S. inclicates and of steas
Foe. indicates
100
WA 59
on s3
c-;*
"CAG
10-511
huds
„'9" 3 Pos.

FRAMING PLAN
• Studs ol cenerate bogie
to conciste Face.
is -3.0 from finish floor unless notad frot
thus
Ron s6t 5/g)
EAST
ete blocks.

COMMUNITY CALLER

MATRO CALIF
11/201
E. SAY MILLER & R. D. STEINEE

ARCHITECIS
230 a. i
San Mateo MLK Community Center Resiliency and Feasibility Study 101 102
O. Mechanical Assessment
Alter
Engineers
San Mateo MLK Community Center Resiliency and Feasibility Study 103 104
Introduction
The existing building consists of a lobby with support
spaces, locker and dressing rooms, multipurpose and
assembly spaces, as well as a commercial kitchen.

Existing Conditions
It appears that, other than the 1987 addition
related rooftop package units, the rest of the HVAC
equipment is original to the building. All of the
equipment is beyond it's useful life and should be
replaced with an electric version of the existing
equipment type. The roof mounted ductwork and
associated equipment located outside appear to
have considerable weather damage and algae growth.

The multi-purpose rooms, meeting room, lobby, and
daycare are all heated and ventilated using horizontal
gas-fire furnaces hung above the ceilings. The
ductwork shall be inspected for reuse.

The gym and Meeting Room B are ventilated and
conditioned from rooftop gas packaged units. The
ductwork shall be inspected for reuse.

Existing Equipment
Space Existing Equipment and Notes
Multi-Purpose 1 Existing duct mounted, gas-fired horizontal furnace with supply and return air ducting, connected to central supply fan in mechanical room. All interior equipment.

Gym Existing rooftop packaged unit with roof mounted duct work Daycare Existing duct mounted, gas-fired horizontal furnace with supply and return air ducting, connected to central supply fan in mechanical room. All interior equipment.

Meeting Rm A, Misc. Existing duct mounted, gas-fired horizontal furnace with supply and return air ducting, Support Spaces connected to central supply fan in mechanical room. All interior equipment.

Lobby Existing duct mounted, gas-fired horizontal furnace with supply and return air ducting, connected to central supply fan in mechanical room. All interior equipment.

Multi-Purpose 2 and Stage Existing duct mounted, gas-fired horizontal furnace with supply and return air ducting, connected to central supply fan in mechanical room. All interior equipment.

Multi-Purpose 3 Existing duct mounted, gas-fired horizontal furnace with supply and return air ducting, connected to central supply fan in mechanical room. AND a dedicated gas-fired rooftop package unit.

Meeting Room B, Misc. Existing dedicated gas-fired rooftop package unit.

Support Spaces
Kitchen Supply air from adjacent multi-purpose space system, grease exhaust fan San Mateo MLK Community Center Resiliency and Feasibility Study 105 Roof mounted ductwork
Boiler Room Exhaust Locker Room Exhaust Ductwork Family Changing Room Unit Heater Pool Equipment Room Exhaust Fan Stage Supply Air Grilles Family Changing Room Unit Heater Multi-Purpose ceiling diffusers
106
Assuming the interior program and spaces remain, All exterior equipment shall be provided with the the existing equipment shall be replaced in kind manufacturer's corrosion resistant coating for salty with an electric version if there is a gas connection air, to be applied at the factory. The pool equipment existing. However, load and airflow calculations shall and chemical rooms shall be exhausted per the latest be completed prior to selecting equipment. The codes and standards. All utility and equipment type sizes listed here are based on the existing equipment spaces shall be exhausted. heating capacities. When moving to all-electric, heat
pump equipment is the most likely replacement for
gas equipment. Heat pumps provide both heating and
cooling. If cooling is not desired, it can be locked out at the unit controller. All heat pumps shall utilize R-32 or better refrigerant.

The existing horizontal furnaces shall be replaced
with high static ducted fan coils. Ductwork shall
be cleaned and reused if it is in good condition. All
air outlets and inlets shall be replaced with new.

Balancing dampers shall be added where needed
to correctly balance the systems. The fan coils shall
have refrigerant piping from the unit to the heat
pump outside. Each zone shall have a dedicated heat
pump. The central supply fan used for ventilation
shall be replaced with new and all ductwork
associated shall be replaced. The ventilation
ductwork shall have a filter box in-line, downstream
of the fan, and it shall be easily accessible for filter changes. The filter box shall be capable of housing
a MERV 13 filter and a carbon filter. The carbon filter would only be installed in a wildfire or smoke event.

Outdoor Heat Pump
The spaces with rooftop units shall have new heat
pump rooftop units installed. The roof penetrations
shall be reused where possible. Interior ductwork
that is in good condition and is sized for the new
system shall be cleaned and reused.

If the kitchen is remodeled, a new rooftop mounted
grease exhaust fan shall be installed as well as a
make-up air unit. The kitchen space is currently
conditioned from the adjacent multi-purpose
space and can remain that way. If the kitchen is
not remodeled and will be used as is, the kitchen
hood, exhaust fan, and make-up air systems that are
existing shall be serviced and rebalanced to ensure
proper space ventilation.

The women's locker room has exposed exhaust
ductwork that has condensation dripping from the Indoor Ducted Fan Coil exhaust air plenum. We recommend placing all
the ductwork within the building envelope and it
should be insulated to prevent condensation. The
men's locker room exhaust should be replaced with
a similarly ducted system as the women's to help
nove air around the space. The exhaust system shall
be designed to provide ventilation but also prevent
stagnant, moist air from settling in the space.

San Mateo MLK Community Center Resiliency and Feasibility Study 107 Preliminary Equipment List
Space Recommendations
Multi-Purpose 1 Split system with indoor, horizontal fan coil with new supply air and return air ducting, mixing box with outside air connection through roof, outdoor heat pump unit on roof; Daikin 6 ton split heat pump
Gym Rooftop packaged heat pump unit, Daikin Rebel 15 ton; new ductwork on the roof.

Daycare Split system with indoor, horizontal fan coil with new supply air and return air ducting, mixing box with outside air connection through roof, outdoor heat pump unit on roof; Daikin 5 ton split heat pump
Meeting Rm A, Misc. Split system with indoor, horizontal fan coil with new supply air and return air ducting, Support Spaces mixing box with outside air connection through roof, outdoor heat pump unit on roof; Daikin 6 ton split heat pump
Lobby Split system with indoor, horizontal fan coil with new supply air and return air ducting, mixing box with outside air connection through roof, outdoor heat pump unit on roof; Daikin 6 ton split heat pump
Multi-Purpose 2 and Stage Split system with indoor, horizontal fan coil with new supply air and return air ducting, mixing box with outside air connection through roof, outdoor heat pump unit on roof; Daikin 18 ton split heat pump
Multi-Purpose 3 Rooftop packaged heat pump unit, Daikin Rebel 12.5 ton; new ductwork on the roof.

Meeting Room B, Misc. Rooftop packaged heat pump unit, Daikin 3 ton; new ductwork on the roof.

Support Spaces
Kitchen Roof mounted upblast exhaust fan, CaptiveAire DU85HFA; Roof mounted make-up air unit, Captive Aire CASRTU1-E. 152-13-7.5T-DOAS.

Miscellaneous Exhaust
• (6) Inline exhaust fans and associated duct work,
all routed to the roof
• (1) Supply fan to replace the central ventilation
supply fan in the mechanical room
Controls and Instruments
Stand-alone manufacturer's controls (no central
controls)
108

7. Plumbing Assessment
Alter
Engineers
San Mateo MLK Community Center Resiliency and Feasibility Study 109 110
Existing Conditions
Most of the plumbing appears to be original copper
and cast iron from 1968. Record drawings (1987)
indicate water closets and lavatories were replaced.

1.6 GPF water closets with manual flushometers noted
on site walk and the lavatories include sensor faucets
(flowrate unknown)
Pool Equipment Room and Locker
Room Plumbing Fixtures
The gas-fired tank-type water heater that serves the
locker rooms is located within the pool equipment
room and includes a circ pump to reduce wait time
for hot water. Both the water heater and the circ
pump appear to have been replaced within the
past 10 years. The hot from the tank is routed to a
tempering valve to set a single hot water temperature
distributed up high along the back wall out to all
locker room fixtures. Mostly parallel with cold water
distribution piping.

Copper piping in mechanical room is green in places
(due to the pool chemicals in the air) but appears be
in good condition. No history of below grade leaks
Gas Fired Water Heater and Tank
was reported. Below grade sanitary piping has no
history of severe blockages besides the occasional
hair ball from the showers (based on site discussions
with the maintenance staff).

All shower fixtures are original and are operated by a
single hot water valve and a single cold water valve for each head (no compliant pressure balance valve).

Community Center and Kitchen
The lavatory fixtures have under counter electric
tankless water heaters for handwashing.

The kitchen area is believed to be fed by an electric
tank typer water heater. Maintenance staff were
unable to identify the location of the existing water
heater. Maintenance staff identified a portion of the
sanitary line serving the kitchen sink that was recently replaced because it had clogged and failed due to a
buildup of grease. The kitchen was flagged as an area
to be renovated to be modernized and possibly all
electric.

Central Thermostatic Mixing Valve beside the tank
San Mateo MLK Community Center Resiliency and Feasibility Study 111 Recommendations
P1: Install Grease Interceptor to serve a grease
producing fixtures.
• This could be an undercounter grease trap
solution if it is determined that the sink is the
only grease producing fixture within the space.

Typically, floor sinks or floor drains are included
which would also have to route through the
grease interceptor which would require a below-
grade installation in the courtyard.

P2: Replace Fixtures to be improved and
compliant.
• This would improve user experience (sensor flush
at urinals and water closets)
• Shower valves replaced with modern compliant
pressure balance valves. (This may trigger
required modifications of floor drains)
• Refer to attached floor plans for fixture counts.

P3: Replace existing gas fired tank type water
heater for heat pump
• Replace the existing water heater with a 119 gallon
tank paired with multiple SANCO2 air source heat
pumps making use of all the existing connections
but using electricity instead of gas.

Undercounter Electric Tankless Water Heaters The feasibility of this first will require City input on how much showering they anticipate.

Replace thermostatic mixing valve. It is not likely
that the existing mixing valve was listed to the
same safety standard as a modern thermostatic
mixing valve so to provide an improved level of
temperature control and scald protection.

P4: Camera the sanitary lines
• While not an immediate pain point, the existing
sanitary lines are over 50 years old and likely
include sags or cracks or root intrusion that can
be managed if it can be identified and remedied.

Manual Flushvalve for Floor mounted water closets
112
Preliminary Equipment List
Undercounter Grease Interceptor at Kitchen - Electrifying Water Heater for Building Schier GB-1 • (6) SANCO2 Water Heaters (This represents • An undercounter is appropriate if only the about 25% of the capacity of the existing gas 3-comp sink generates grease. water heater.)
• Install somewhere outside (luckily these blow
• With more source fixtures a slightly larger unit
would be required and installed below grade. cold air during the summer and they are rela- • Owner maintenance protocol is also import- tively quiet at 40dB) ant aspect of the final design WaterDrop provides pre-plumbed and wired heat pumps on a rack for ease of installation.

Digital Mixing Valve: Leonard Proton - 3/4" Hot
Water Outlet
• Expansion Tank
WaterDrop Droplets
Provide at least 5-1/2" clearance
above unit for routine
maintenance.
5-1/2" min.

Central Thermostatic Mixing Valve beside the tank Heat Pump Package on Rack (SANCO2 units)

LEONARD
•V-4
• Water
Grease
• Solids
GB2 shown
Schier Hydromechanical Grease Interceptor
Digital Mixing Valve
San Mateo MLK Community Center Resiliency and Feasibility Study 113 114

8. Electrical Assessment
«RIJA
San Mateo MLK Community Center Resiliency and Feasibility Study 115 Electrical Report
1 Executive Summary 2 Electrical System
This report describes recommended electrical 2.1 Utility Service improvements, based on building modernization,
improvements, and electrification to the pool Upgrade the existing electrical service from 600Amp process equipment and mechanical systems. This to 1000Amp (estimated), 208/120V, 3phase. Includes report also assumes part of the community center upgrading the existing pad mount transformer and will serve as disaster relief center for the local main switchboard. Assume main switchboard will be community. As such, the report describes a standby indoor rated. power system that can support this functionality.

Due to cost efficiencies, the standby power system 2.2 Electrical Distribution System is not intended to support the entire community
center. The main switchboard described in the section above shall include a distribution section with the following

1.1 Project Goals feeder breakers.
• 250Amp 3phase panel for Pool Equipment
Key electrical objectives for the proposed project are 250Amp 3phase panel for HVAC to: 150Amp 3phase panel for domestic hot water
• Maximize and balance energy and cost systems
efficiencies to design for sustainability in state- • 150Amp 3phase panel for Stage/Auditorium of-the-art buildings. • (4) additional 150Amp 3phase panels for general Design systems to allow for seamless operations power and lighting and maintenance schedule.
• Design electrical distribution system to include 2.3 Standby Power System a standby power system that supports essential
function of a disaster relief / resiliency center. The standby power system described here will • Electrification of Mechanical and Pool process provide 200Amps, 208V single phase standby power equipment for approximately 3-days of cloudy conditions. The system also includes provisions for a temporary

1.2 Codes & Standards / plug-in generator to provide additional standby power capacity.

California Codes
• California Building Code (CBC), Volumes #1 and We assume standby power will be provided for the #2 (Part 2, Title 24, CCR). following:
• California Building Code (Part 3, Title 24, CCR). • HVAC for a portion of the community center • California Fire Code (CFC) (Part 9, Title 24, CCR). • General power & lighting of the community • California Green Code (Part 11, Title 24, CCR). center • California Referenced STANDARDS CODE (Part 12, • Power for preparing food, limited to warming Title 24, CCR). equipment, not full food service.
• NFPA 72 National Fire Alarm Code.
• ADA Standards for Accessible Design. System Equipment shall include the following:
• City Electrical Department Standards. • (64) LG Solar 375W LG375N1C-A6 PV Modules • String Wiring with Cable and Wire Management
Supports
• (4) 6.0 KW SE-6000H-US 240 V 1 PH Energy Hub
PV & Battery SolarEdge Inverter
• (64) P401 SolarEdge DC Optimizers
• (1) BI-EUSGNA-01 SolarEdge Backup Interface with
116
200 Amp Integral Breaker and Generator Input • Mechanical and Pool Systems • (4) SolarEdge BAT-10KP 9.7 kWh Batteries 208V, 3 phase, 3 wire + ground, 60 hertz. • PV & Battery Sub Panel(s), (1) 200A Main, 225A Bus, 208V, 1 phase, 2 wire + ground, 60 hertz. 240V/120V 1 PH, 3 Wire, 35kAIC with (4) 35A/2P 120V, 1 phase, 2 wire + ground, 60 hertz. branch circuit breakers • Lighting
• PV & Battery Disconnect, (1) 200A, fused at 125A, 120V, 1 phase, 2 wire + ground, 60 hertz. 2401 PH • General Purpose Receptacles
• PV Roof Mount Racking Equipment • 120V, 1 phase, 2 wire + ground, 60 hertz.

Head-ends for Signal Systems (i.e.: BMS, Security,
• PV Monitoring System
Fire Alarm, Lighting Controls, etc.)
• 120V, 1 phase, 2 wire + ground, 60 hertz.

2.4 Emergency Power System

2.6 Grounding
Code required emergency loads must be served from
a separate standby source than the system described
• Grounding will be accomplished by utilizing a
in the section above. Code required emergency load
UFER grounding system, rods, and connections to
for this project are the following: active cold water pipe and building steel. • Emergency and Egress Lighting • A single point grounding system will be • Exit Signs established via main ground bus located in the • Fire Alarm main electrical room. The main ground bus will function as a connection point for the grounding
Secondary source of power for the emergency loads and bonding systems within the room. will be via central lighting inverters for emergency • A minimum of two ground rods will be located in lighting and local batteries for the other loads opposite corners of the room and will be outside described above. the main switchgear. The ground rods will be exothermically connected to the electrical room

2.5 Branch Distribution ground loop.

Separately derived systems will be grounded per
• Branch circuit design will not exceed a maximum CEC requirements. Grounding of emergency of 1,080 volt amperes per 20 ampere, 120 volt generators will conform to CEC 250.30 - circuit for general areas. Grounding Separately Derived Alternating Current • Branch circuit design for computer rooms, Systems.
offices, and administration will not exceed a A telecommunications ground bus will be maximum of 720 volt amperes per 20 ampere, 120 installed in all telecommunication rooms. The volt circuit. ground bus will include stainless steel mounting brackets, an insulator, and a pre-drilled
• Motors of 1/2 horsepower and larger will be
served at 208 volt service, 3 phase, 3 wire + copper bus bar. Isolated ground buses will be ground. provided in distribution equipment serving
• Motors less than 1/2 horsepower will be served at telecommunication rooms. 120 volt service, 1 phase, 2 wire + ground.
• All multi-wire branch circuits will be installed
with dedicated neutrals. Highly loaded, 20-amp,
continuous electrical loads, such as circulation
lighting and servers, will have increased wire sizes
(i.e.: from #12 to #10) in order to reduce power
loss in the wiring.
• Separate wires in conduit will be provided for
each of the following loads:

San Mateo Joinville Swim Center Analysis and Feasibility Study 117

2.7 Power Monitoring automatically adjust the amount of electric light against available and constantly fluctuating
A main building meter will be provided at the daylight. This continuously dimming system main switchboard. Additionally, we recommend consists of photocells, daylight dimming control submetering of end use loads. A multipoint metering modules, and dimmable 0-10VDC drivers for each system shall be used at the main switchboard to space.
monitor all feeder breakers. Sub-meters will be web-
enabled and communicate to the building energy
management system.

2.8 Lighting Controls
• An addressable lighting control system will have
the ability for granular control and monitoring of
each luminaire and associated lighting control
device, load monitoring, and automatic demand
response (ADR) capability. Addressable lighting
controls will be Wattstopper DLM.

Time schedules shall be defined in the BMS and
shared with the lighting control system.
• The primary method of controlling interior
luminaires while conserving energy in the building
will be achieved through the use of occupancy
sensors and manual override switches. Lighting
control devices will be integrated into an
addressable system.

Occupancy sensors will be set to "manual on/
auto off" in offices and conference rooms; "auto
on/auto off" for restrooms and support areas.

Emergency lighting will be controlled with other
lights. Occupancy sensors that control stairs and
emergency egress lighting will be bypassed to
provide 100% illumination in the event of normal
power failure.
• Photosensors will dim luminaires based on
available daylighting.
• Astronomical time clock controls, occupancy
sensors, and/or photosensors will be provided for
exterior, site, and landscape lighting applications
via the lighting control system. Lighting will
automatically turn on or off as appropriate
throughout the course of the day. Photosensors
will allow dimming based on scheduled times,
occupancy sensor control overrides at night, and
adjustment based on available daylight levels.
• Daylight harvesting will be designed and specified
to reduce energy where natural daylight occurs in
abundant and sufficient levels. Spaces, receiving
sufficient, natural sunlight from glazing, will be
equipped with a dimmable lighting system to
118
3 ELECTRICAL EQUIPMENT

3.1 Switchboard 3.3 • Conduit and Wiring
Switchboards will be completely assembled, free Conductors will be copper, THHN or THWN-2, with standing, with copper bus bars, full neutral bus, PVC insulation; galvanized rigid steel (GRS) conduit and separate copper ground bus. All bus work in exterior or exposed interior work up to eight will be braced to withstand 65KAIC amperes RMS feet above finished floor, and for work embedded symmetrical. Short circuit values shall be revisited in in concrete; rigid nonmetallic conduit (HDPE) for all future design phase to determine actual ratings for all underground exterior work; concrete encased for all equipment. Protective devices will be provided with site underground, electrical metallic tubing (EMT) for approved barrier between sections and extended interior concealed work or above eight feet exposed; load terminals. Protective devices will consist of flexible metal conduit (Greenfield) for interior work circuit breakers. Circuit breaker selection will utilize in short lengths or liquid tight flexible metal conduit molded case type; be rated for application in their (Sealtight) wherever moisture may be present for the intended enclosure; include solid state tripping with connection of recessed luminaires, motors, separate adjustable long time, instantaneous, short time, building structures and any vibrating equipment. and ground fault. Additional spare branch feeder To avoid the potential environmental impacts of PVC breakers will be provided for future and spare coated power cables, we recommend the use of a capacity. Switchboard will be Eaton Cutler Hammer, cable similar to General Cable XHHW-2 VW-1, which Square D, GE, Siemens, or approved equal uses XLPE insulation in lieu of PVC.

3.2 Panelboards
Panelboards shall have door-in-door construction
with 42-poles, and copper bussing, unless otherwise
noted in single line diagram. Transient Voltage
Surge Suppressors shall be used on all panelboards
feeding all IT rooms (IDF, MDF, Site Cores, etc). For
pricing purposes, 208/120V panelboard bus work
will be braced to withstand 22kAIC amperes RMS
symmetrical.

Proposed: Square D, Eaton Cutler Hammer, or
approved
San Mateo Joinville Swim Center Analysis and Feasibility Study 119 Electrical Improvement List
List of recommended improvements based on the
electrification of Pool equipment and mechanical
systems
Service Upgrade Standby Power System (provides 200Amps at 208V single phase standby power)
• Upgrade the existing electrical service from : Solaredge Backup Interface 600Amp to 1000Amp (estimated), 208/120V, 400Amp standby power panel with 200Amp main 3phase. Includes upgrading the existing pad breaker
mount transformer and main switchboard. (2) 100Amp/1ph panels 24kW Grid-tied PV system with 38.8kWH Lithium
Assume main switchboard will be indoor rated.

Switchboards will be completely assembled, free lon Battery system. standing, with copper bus bars, full neutral bus,
New lighting and lighting control system
and separate copper ground bus. All bus work
will be braced to withstand 36KAIC amperes RMS • New interior and exterior lighting through out. • All lighting will be LED with 0-10v dimming with
symmetrical. Protective devices will consist of
circuit breakers. Circuit breaker selection will energy compliant lighting controls utilize molded case type; be rated for application • Assume $25/sqft lighting cost and $7/sqft lighting in their intended enclosure; include solid-state control cost (Wattstopper DLM) tripping with adjustable long time, instantaneous,
short time, and ground fault. Additional spare New receptacles throughout based on branch feeder breakers will be provided for proposed program future and spare capacity. Switchboard will be
Eaton Cutler Hammer, Square D, GE, Siemens, or
approved equal
Include feeder branch breakers per Item 2 below.

Electrical Distribution Equipment Replacement
• 250Amp 3phase panel for Pool Equipment
• 250Amp 3phase panel for HVAC
• 150Amp 3phase panel for domestic hot water
systems
• 150Amp 3phase panel for Stage/Auditorium
• 4) additional 150Amp 3phase panels for general
power and lighting
• Panelboards shall have door-in-door
construction with 42-poles, and copper bussing,
unless otherwise noted in single line diagram.

Transient Voltage Surge Suppressors shall be
used on all panelboards feeding all IT rooms. For
pricing purposes, 208/120V panelboard bus work
will be braced to withstand 22kAIC amperes RMS
symmetrical. Proposed: Square D, Eaton Cutler
Hammer, or approved
120
San Mateo MLK Community Center Resiliency and Feasibility Study 121 122

9. Conceptual Design Cost Plan
mack
project, cost & construction management
San Mateo MLK Community Center Resiliency and Feasibility Study 123 124
CONTENTS Page
Commentary.. 128 - 129
Overall Summary................ .. 131 - 133
(E) Building Upgrades... 135 - 147
(E) Swimming Pool Remodel. .. 149 - 154
Site Improvement.... .. 155 - 158
Priority 2... ..• 159 - 161
San Mateo MLK Community Center Resiliency and Feasibility Study 125 126
Conceptual Design Cost Plan
Commentary
Martin Luther King Community Center
Introduction
Basis of Cost
Assumptions
Exclusions
March 8, 2024
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San Mateo MLK Community Center Resiliency and Feasibility Study 127 Commentary Job #24842 mack
March 8, 2024
introduction
mack5 was requested to carry out a Conceptual Design Cost Risk Register Plan for the proposed renovation of existing Martin Luther King Exclusions Community Center, located at 725 Monte Diablo Ave., San Project Scope Mateo, CA 94403.

Assumptions The first part of the Report contains the basis of the report, the assumptions made, description of the project scope, and Basis of Cost exclusions to the costs which contain items that have potential to Introduction impact cost at some point in the future.

The Overall Summary section contains a Summary of Gross Floor Areas, an Overall Project Summary, and Component and Trade Cost Summaries with Graphs.

Each section contains Control Quantities, a Cost Summary and Graph Graph, and a Detailed Breakdown of Costs.

Unit Costs
Total Cost
Overall
Summary
128
Commentary macks
Job #24842
March 8, 2024
project introduction
The City of San Mateo wishes to renovate their existing Martin Luther King Community Center. The buiet so inist of an uses ant of thracureat physical condition of decks and existing buildings, including structural analysis,
shells/finishes, equipment & pipings, and code & accessibility requirement. items used for cost estimate
pricing documents Preliminary estimate package prepared by ELS, dated 02/29/2024
IDA Structural Engineers Memorandum, dated 2/7/2024
Mechanical/Plumbing narrative, dated 2/7/2024
Electrical narrative prepared by RIJA Consulting, dated 2/23/2024
Existing building documents
assumptions
(a) Construction will start in March, 2026
(b) A construction period of 8 months
(c) The general contract will be competitively bid by a minimum of five (5) qualified contractors
(d) The general contractor will have full access to the site during normal business hours
(e) There are no phasing requirements
(f) • The contractor will be required to pay prevailing wages exclusions
(a) Cost escalation beyond a midpoint of July, 2026
(b) Loose furniture and equipment except as specifically identified (c) Compression of schedule, premium or shift work, and restrictions on the contractor's working hours
(d) Soft Cost such as testing and inspection fees, architectural design and construction management fees, assessments, taxes, finance, legal and development charges
(e) Scope change and post contract contingencies
(f) Environmental impact mitigation
(g) Temporary housing for displaced management and staff (h) Moving and relocation cost
San Mateo MLK Community Center Resiliency and Feasibility Study 129 130
Conceptual Design Cost Plan
Overall Summary
Martin Luther King Community Center
Gross Floor Areas
Overall Summary
Component Summary
Trade Summary
March 8, 2024
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San Mateo MLK Community Center Resiliency and Feasibility Study 131 132
Overall Summary Job #24842 mack
March 8, 2024
PRIORITY 1: Area % $/SF $,000
(N) Building Addition for Pool Equipment - Allowance 525 SF 4% $900.00 $473 (E) Building Remodel & Upgrade 23,789 SF 65% $316.66 $7,533 (E) Swimming Pool Remodel 11,490 SF 30% $303.22 $3,484
Site Improvement 1,360 SF 1% $109.56 $149
TOTAL BUILDING CONSTRUCTION & SITEWORK (PRIORITY 1) $11,639 PRIORITY 2: $,000
Remodel (E) Kitchen To Be All-Electirc $493
Replace (E) Paving And Improve Courtyard Drainage $263
(N) All-Electric Pool Equipment & Electrical Service Upgrade TBD San Mateo MLK Community Center Resiliency and Feasibility Study 133 134
Figure 4: View of building and high roof at gym
Conceptual Design Cost Plan
(E) Building Remodel & Upgrade
Martin Luther King Community Center
Control Quantities
(E) Building Remodel & Upgrade Summary
Detailed Cost Breakdown
March 8, 2024
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San Mateo MLK Community Center Resiliency and Feasibility Study 135 136
(E) Building Remodel & Upgrade Control Quantities Job #24842 mack March 8, 2024
Enclosed Areas
(N) Building Addition, 525SF see Overall Summary
(E) Building Remodel (New Toilets,
Showers, Lockers & Changing AReas) 1,728
(E) Building Remodel (Storage/office/lobby) 1,516
(E) Building Upgrade (Excluding
Architectural) 20,545
Subtotal of Enclosed Area 23,789
San Mateo MLK Community Center Resiliency and Feasibility Study 137 (E) Building Remodel & Upgrade Job #24842 mack
Summary March 8, 2024
CS/ UniFormat Summary 23,789 SF % $/SF $,000

SUBSTRUCTURE
Foundations 8% $25.00 $595
SHELL
Superstructure 16% $50.00 $1,189
Enclosure 2% $6.94 $165
Roofing 6% $20.00 $476

INTERIORS
Interior Construction 5% $16.04 $382
Stairs
$16.20 S385
Interior Finishes

SERVICES
Conveying -
Plumbing 3% $8.83 $210
Heating, Ventilation, & Air Conditioning 10% $30.13 $717 Fire Protection 0% $0.87 $21
Electrical 7% $21.40 $509

EQUIPMENT & FURNISHINGS
Equipment 0% $0.74 $18
Furnishings 0% $1.13 $27
Selective Building Demolition 0% $1.36 $32
Subtotal - Building Construction 63% $198.66 $4,726
Bonds & Insurance 3.00% 2% $5.96 $142
General Conditions 10.00% 6% $20.46 $487
Contractor's Overhead & Profit 5.00% 4% $11.25 $268
Subtotal 75% $236.33 $5,622
Design Contingency 20.00% 15% $47.27 $1,124
Cost Escalation 11.67% 10% $33.09 $787
TOTAL CONSTRUCTION BUDGET 100% $316.66 $7,533
NOTE: Inclusions and Exclusions listed in the Commentary Section. 138
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(E) Building Remodel & Upgrade Job #24842
Summary March 8, 2024
CS/ UniFormat Summary
Foundations
Superstructure
Enclosure
Roofing
Interior Construction
Stairs
Interior Finishes
Conveying
Plumbing
Heating, Ventilation, & Air Conditioning
Fire Protection
Electrical
Equipment ]
Furnishings
Bonds & Insurance
General Conditions
Contractor's Overhead & Profit
Design Contingency
Cost Escalation
8800 5800 31000 $3700
Cummar 1 Dano a
San Mateo MLK Community Center Resiliency and Feasibility Study 139 |(E) Building Remodel & Upgrade Detail Job #24842 mack
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FOUNDATIONS Quantity Unit Rate Total ($)
Standard Foundations
Allowance for seismic retrofit 23,789 GSF $25.00 $594,725 Subtotal For Foundations: $594,725
SUPERSTRUCTURE Quantity Unit Rate Total ($)
Structural Framing
Allowance for seismic retrofit 23,789 GSF $50.00 $1,189,450 Subtotal For Superstructure: $1,189,450
ENCLOSURE Quantity Unit Rate Total ($)
Wall Framing, Furring & Insulation + Exterior Finishes
Allowance for Locker Room remodel only 3,244 SF $50.00 $162,200 Exterior Doors, Frames And Door Hardware
(N) Automatic door operators at exits from
locker rooms to pool deck 2 EA $1,500.00 $3,000
Subtotal For Enclosure: $165,200
ROOFING Quantity Unit Rate Total ($)
Roof Coverings - Entire Roof
Allowance for roof repairs - Owners report for
ongoing issues with roof leaking and water
accumulation within the layers of the roof
assembly 23,789 SF $20.00 $475,780
Subtotal For Roofing: $475,780
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INTERIOR CONSTRUCTION Quantity Unit Rate Total ($)
Note: Only At Locker Room Remodel Area
Interior Partitions (Locker Room Remodel Only)
Non-rated partition; including metal stud
framing, insulation and gypsum board on both
sides 310 LF $432.00 $133,920
Backing and blocking, provide 16 gauge or
heavier metal blocking and backing at all wall
or ceiling mounted items including but not
limited to light fixtures, handrails, grab bars,
cabinetry, bulletin boards, equipment,
shelving, signage, etc. 3,244 SF $2.00 $6,488
Interior Doors & Door Hardware
(N) Connection from community center to
locker rooms and pool deck 2 EA $6,000.00 $12,000
(N) Single leaf door 9 EA $4,000.00 $36,000
Fittings
Protective guards, barriers and bumpers 3,244 SF $0.50 $1,622 Toilet fittings and accessories
Standard toilet partition, phenolic 2 EA $1,800.00 $3,600 ADA toilet partition, phenolic 2 EA $2,000.00 $4,000
Shower enclosure, phenolic 4 EA $3,000.00 $12,000
Urinal screen, phenolic 2 EA $500.00 $1,000
Toilet accessories; including toilet tissue
dispenser, napkin disposal, seat cover
dispenser, soap dispenser, waste receptacle,
grab bar, paper towel dispenser, wall mirror,
etc. 4 STALL $5,000.00 $20,000
Shelving and millwork
Janitor's mop and broom holder 1 EA $500.00 $500
Quartz solid surface vanity countertop &
backsplash (12.1) 12 LF $350.00 $4,200
Custom wood reception desk with lower &
upper soiled surface countertop and low
swing doors 1 LS $10,000.00 $10,000
Custom casework at breakroom, 1st aid, office &
lobby
Allowance 1,516 SF $10.00 $15,160
San Mateo MLK Community Center Resiliency and Feasibility Study 141 (E) Building Remodel & Upgrade Detail Job #24842 mack
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INTERIOR CONSTRUCTION Quantity Unit Rate Total ($)
Note: Only At Locker Room Remodel Area
Chalkboards, insignia and graphics
Door signage 11 EA $200.00 $2,200
Directional/wayfinding & code signage 3,244 SF $3.00 $9,732 Miscellaneous
Rough carpentry 3,244 SF $2.00 $6,488
Cut/patch and repair areas affected by the
structural/mechanical/elecrical upgrade 20,545 GSF $5.00 $102,725 Subtotal For Interior Construction: $381,635
STAIRS Quantity Unit Rate Total ($)
No Work Anticipated In This Section
Subtotal For Stairs:

INTERIOR FINISHES Quantity Unit Rate Total ($)
Note: Only At Locker Room Remodel Area
Floor Finishes
Vinyl sheet at offices/lobby 816 SF $16.00 $13,056
Ceramic floor tile at changing & restrooms 1,728 SF $35.00 $60,480 Sealed concrete at storage 700 SF $4.00 $2,800
Bases
Rubber base (B1) 902 LF $5.00 $4,510
Wall Finishes
Ceramic wall tile 3,390 SF $35.00 $118,650
Ceiling Finishes
Gypsum board, waster resistant at wet
locations, painted (C1) 1,728 SF $35.00 $60,480
Ceiling at office/lobby 1,516 SF $15.00 $22,740
Miscellaneous - Allowance
Cut/patch and repair areas affected by the
structural/mechanical/elecrical upgrade 20,545 GSF $5.00 $102,725 Subtotal For Interior Finishes: $385,441
142
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CONVEYING Quantity Unit Rate Total ($)
No Work Anticipated In This Section
Subtotal For Conveying:

PLUMBING Quantity Unit Rate Total ($)
Fixtures & Associated piping; (N) water-efficient
plumbing fixture at remodelled locker room
Remodel and reconfigure locker rooms with
new showers; New water-efficient plumbing
fixtures, including minimum 2 toilets and 2
urinals for men, 2 toilets for women, 2
lavatories for each and 2 showers each for
men and women, 6 Floor drains 20 EA $6,500.00 $130,000
Equipment
Sanco2 heat pump 6 EA $5,500.00 $33,000
Tank, 119 gal 1 EA $12,000.00 $12,000
Grease interceptor at sink, plus drains 1 EA $10,000.00 $10,000 Plumbing related items & Demo 1 LS $25,000.00 $25,000
Subtotal For Plumbing: $210,000
[HEATING, VENTILATION, & AIR-CONDITIONING Quantity Unit Rate Total ($) Equipment
Multipurpose / Meeting Room / Lobby;
Packaged Heat pump, 6 ton 3 EA $50,000.00 $150,000
Indoor Fan Coil 3 EA $4,500.00 $13,500
Refrigerant line sets 420 LF $48.00 $20,160
Gym;
Rooftop packaged heat pump, 15 ton 1 EA $140,000.00 $140,000 Daycare
Packaged Heat pump, 5 ton 1 EA $45,000.00 $45,000
Indoor Fan Coil 1 EA $4,000.00 $4,000
Refrigerant line sets 200 LF $48.00 $9,600
Multipurpose 2 / Stage;
Packaged Heat pump, 18 ton 1 EA $196,000.00 $196,000
Indoor Fan Coil 1 EA $7,000.00 $7,000
Refrigerant line sets 200 LF $48.00 $9,600
San Mateo MLK Community Center Resiliency and Feasibility Study 143 (E) Building Remodel & Upgrade Detail Job #24842 mack
March 8, 2024
HEATING, VENTILATION, & AIR-CONDITIONING Quantity Unit Rate Total ($) Equipment
Multipurpose 3;
Rooftop packaged heat pump, 12.5 ton 1 EA $60,000.00 $60,000 Meeting rm B
Rooftop packaged heat pump, 3 ton 1 EA $12,000.00 $12,000 Kitchen;
MAU & Exhaust NIC, See Priority 2
General exhaust NIC, See Priority 2
Distribution & Control included above
Energy recovery ventilator NIC, Not in design
HVAC Related items & Demo 1 LS $50,000.00 $50,000
Subtotal For Heating, Ventilation, & Air-Conditioning: $716,860 FIRE PROTECTION Quantity Unit Rate Total ($)
Fire Sprinkler System
Allowance at remodelled locker room 1,728 SF $12.00 $20,736 Subtotal For Fire Protection: $20,736
ELECTRICAL Quantity Unit Rate Total ($)
Electrical Service Upgrade NIC, See Priority 2
Standby Power System:

Solaredge Backup Interface 1 EA $7,000.00 $7,000
400A standby power panel with 200AMCB
208/120V 1Ph 1 EA $8,700.00 $8,700
Panel 100A 208/120V 1Ph 2 EA $3,500.00 $7,000
24kW Grid-tied PV system with 38.8kW Li lon
battery system 1 EA $114,000.00 $114,000
Structural steel support - allowance 1 LS $18,000.00 $18,000 AC Feeder allowance 1 LS $25,000.00 $25,000
PV conduit infrastructure allowance 1 LS $15,000.00 $15,000 144
(E) Building Remodel & Upgrade Detail Job #24842 mack
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ELECTRICAL Quantity Unit Rate Total ($)
Machine and Equipment Connections
Replace Mechanical and water heater
connections:

Multi-purpose 1 - split system with indoor fan
coil/outdoor heat pump on roof - 6 ton split
heat pump 1 EA $5,250.00 $5,250
Gym - Rooftop pckaged heat pump unit - 15
1 EA $8,235.00 $8,235
Daycare - split system with indoor fan
coil//outdoor heat pump on roof - 5 ton split
heat pump 1 EA $5,250.00 $5,250
Meeting room A/Misc Support Areas - split
system with indoor fan coil/outdoor heat pump
on roof - 6 ton split heat pump 1 EA $5,250.00 $5,250
Lobby - split system with indoor fan
coil/outdoor heat pump on roof - 6 ton split
heat pump 1 EA $5,250.00 $5,250
Multi-purpose 2 and Stage - split system with
indoor fan coil/outdoor heat pump on roof - 18
ton split heat pump 1 EA $9,250.00 $9,250
Multi-purpose 3 - split system with indoor fan
coil/outdoor heat pump on roof - 12.5 ton split
heat pump 1 EA $7,750.00 $7,750
Meeting room B/Misc Support Areas - Rooftop
packaged heat pump unit - 3 ton EA $4,275.00 $4,275
Kitchen - roof mounted upblast exhaust
fan/roof mounted mak-up air unit 1 EA $5,250.00 $5,250
Misc exhaust - inline exhaust fans mounted
on roof 6 EA $2,865.00 $17,190
Resilency Items:

Replace existing water heater with 119 gal
tank paited with multiple SANCO2 air source
heat pumps using electricity onstead of gas 6 EA $4,285.00 $25,710 New ADO at exits from lockers rooms to pool
deck - ADO power connections EA $3,500.00 $7,000
Addition of 525 sf to house new equipment -
electrical works - lighting, power, fire alarm Included In Overall Summary - (N) Bldg Addition San Mateo MLK Community Center Resiliency and Feasibility Study 145 (E) Building Remodel & Upgrade Detail Job#24842 mack
March 8, 2024
ELECTRICAL Quantity Unit Rate Total ($)
Power Receptacles and Misc Power
New power receptacles throughout based on
proposed program 3,244 SF $10.00 $32,440
Lighting & Branch Wiring
New interior and exterior LED lighting through
3,244 SF $25.00 $81,100
Lighting Control and Branch Wiring
New energy compiant lighting controls 3,244 SF $7.00 $22,708 Communications, AV, PA, FA & Security
Telecom Excluded
AV Conduit rough-ins only Excluded
Paging System Excluded
Fully addressable fire alarm system Excluded
Access Control System/Intrusion Burglar Alarm
System
New exits from pool deck, panic hardware -
allow site card reader 3 EA $5,500.00 $16,500
CCTV Surveillance Camera System Excluded
Miscellaneous Electrical Work
Permits/Fees 1 LS $5,000.00 $5,000
Selective Trade demolition - electrical 1 LS $20,000.00 $20,000 Temporary Power 1 LS $12,500.00 $12,500
Seismic Bracing/Firesealing/Grounding
allowance 1 LS $8,500.00 $8,500
Testing & commissioning/Coordination 1 LS $10,000.00 $10,000 Subtotal For Electrical: $509,108
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EQUIPMENT Quantity Unit Rate Total ($)
Note: Only At Locker Room Remodel Area
Miscellaneous Equipment - Allowance
Breakroom and 1st Aid Room equipment;
including refrigerator, ice machine,
microwave, etc. LS $10,000.00 $10,000
Swimsuit spinner EA $2,500.00 $2,500
Flat screen TV, wall mounted 1 EA $5,000.00 $5,000
Subtotal For Equipment: $17,500
FURNISHINGS Quantity Unit Rate Total ($)
Note: Only At Locker Room Remodel Area
Amenities & convenience items
Phenolic lockers & pedestal bench 1,728 SF $15.00 $25,920 Portable Fire extinguisher - allowance 2 EA $500.00 $1,000 Moveable Furnishings
FF&E Allowance NIC, OFOI
Conference/meeting tables and chairs NIC, OFOI
Office tables and chairs NIC, OFOI
Subtotal For Furnishings: $26,920
SELECTIVE BUILDING DEMOLITIONI Quantity Unit Rate Total ($) Interior Building Demolition
Interior demolition; including walls/doors and
floor/wall/ceiling finishes - remodelled area 3,244 SF $10.00 $32,440 Hazardous Materials Abatement NIC, Excluded
Subtotal For Selective Building Demolition: $32,440
San Mateo MLK Community Center Resiliency and Feasibility Study 147 148
Conceptual Design Cost Plan
(E) Swimming Pool Remodel
Martin Luther King Community Center
Control Quantities
(E) Swimming Pool Remodel Summary
Detailed Cost Breakdown
March 8, 2024
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San Mateo MLK Community Center Resiliency and Feasibility Study 149 150
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(E) Swimming Pool Remodel Control Job #24842
Quantities March 8, 2024
Swimming Pool Areas
Swimming Pool 2,585
Pool deck 8,905
Subtota 11,490
San Mateo MLK Community Center Resiliency and Feasibility Study 151 (E) Swimming Pool Remodel Summary Job#24842 mack
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CS/ UniFormat Summary 11,490 SF % $/SF $,000
Site Preparation 0% $0.00 $0
Site Improvement 0% $0.00 $0
Site Mechanical Utilities 0% $0.00 $0
Site Electrical Utilities 0% $0.00 $0
Swimming Pool Budget (Excluding Pool Deck) 63% $190.14 $2,185 Subtotal - Sitework 63% $190.14 $2,185
Bonds & Insurance 3.00% 2% $5.70 $66
General Conditions 10.00% 6% $19.58 $225
Contractor's Overhead & Profit 5.00% 4% $10.77 $124
Subtotal 75% $226.28 $2,600
Design Contingency 20.00% 15% $45.26 $520
Cost Escalation 11.67% 10% $31.68 $364
TOTAL CONSTRUCTION BUDGET 100% $303.22 $3,484
NOTE: Inclusions and Exclusions listed in the Commentary Section. 152
(E) Swimming Pool Remodel Detail Job #24842 mack
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SITE PREPARATION Quantity Unit Rate Total ($)
Site Protective Construction
Erosion control; including storm drain inlet
protection, fiber rolls, stabilized construction
entrance/exit, and curb inlet sediment dam
(Outdoor swimming pool area only) Included Under Site Improvement Subtotal For Site Preparation:

SITE IMPROVEMENT Quantity Unit Rate Total ($)
Pool Deck
Concrete pool deck included in swimming pole Budget
Subtotal For Site Improvement:

SITE MECHANICAL UTILITIES Quantity Unit Rate Total ($)
Pool Water Heating
Pool Heat pump, pool heat exchanger,
valves, piping and associated connections included in swimming pole Budget Subtotal For Site Mechanical Utilities:

SITE ELECTRICAL UTILITIES Quantity Unit Rate Total ($)
Service and Distribution - Pool Included In Swimming Pool Budget Machine and Equipment Connection Included In Swimming Pool Budget Power Receptacles and Misc Power
Connections Included In Swimming Pool Budget
Lighting and Power Specialties Wiring Included In Swimming Pool Budget Communications, AV, PA, FA & Security
Subtotal For Site Electrical Utilities:

San Mateo MLK Community Center Resiliency and Feasibility Study 153 (E) Swimming Pool Remodel Detail Job #24842 mack
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SWIMMING POOL BUDGET Quantity Unit Rate Total ($)
Swimming Pool Budget (provided by Aquatic
Design Group thru els)

1.0 Code Concerns
(N) Mechanical and chemical equipment to
rectify code violation 1 LS $650,000.00 $650,000
(N) Deck and deck drainage 1 LS $505,000.00 $505,000
(N) Depth markers/Safety signage 1 LS $4,000.00 $5,000
(N) ADA Access for pools; including ADA
compliant chair lifts and stairs with dual ADA
compliant handrail 1 LS $65,000.00 $65,000
Convert pools to skimmer pools 1 LS $260,000.00 $260,000 Containment for Chlorine 1 LS $2,000.00 $2,000
Gauges for circulation pump 1 LS $400.00 $400

2.0 Maintenance & Operations
(N) Pool finishes 1 LS $215,000.00 $215,000
(N) Under pool piping 1 LS $325,000.00 $325,000
Eliminate surge tank 1 LS $30,000.00 $30,000
(N) Chemical storage room door hardware 1 LS $2,350.00 $2,350 (N) Acid room door hardware and NFPA 1 LS $5,000.00 $5,000 (N) Acid room finishes 1 LS $15,000.00 $15,000
(N) Mechanical/chemical building space to
accommodate additional equipment see Overall Summary
(N) Underwater LED pool lights 1 LS $45,000.00 $45,000
Eliminate small pool 1 LS $60,000.00 $60,000
Subtotal For Swimming Pool Budget: $2,184,750
154
Conceptual Design Cost Plan
Site Improvement
Martin Luther King Community Center
Site Improvement Summary
Detailed Cost Breakdown
March 8, 2024
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San Mateo MLK Community Center Resiliency and Feasibility Study 155 Site Improvement Control Quantities Job #24842 mack®
March 8, 2024
Site Area
(N) Transition Zone For Access To Pool Deck 1,046
(N) Exit Pathway 314
Subtotal of Enclosed Area 1,360
156
Site Improvement Summary Job #24842 mack
March 8, 2024
CS/ UniFormat Summary 1,360 SF % $/SF $,000
Site Preparation 5% $5.71 $8
Site Improvement 58% $63.03 $86
Site Mechanical Utilities 0% $0.00 $0
Site Electrical Utilities 0% $0.00 $0
Subtotal - Sitework 63% $68.74 $93
Bonds & Insurance 3.00% 2% $2.06 $3
General Conditions 10.00% 6% $7.08 $10
Contractor's Overhead & Profit 5.00% 4% $3.89 $5
Subtotal 74% $81.62 $111
Design Contingency 20.00% 15% $16.32 $22
Cost Escalation 11.67% 0% $11.43 $16
TOTAL CONSTRUCTION BUDGET 100% $109.56 $149
NOTE: Inclusions and Exclusions listed in the Commentary Section.

CSI UniFormat Summary
Site Preparation
Site Improvement
Site Mechanical Utilities
Site Electrical Utilities
Bonds & Insurance
General Conditions
Contractor's Overhead & Profit
Design Contingency
88g
San Mateo MLK Community Center Resiliency and Feasibility Study 157 Site Improvement Detail Job #24842 mack
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SITE PREPARATION Quantity Unit Rate Total ($)
Site Demolition
Demo and remove (E) area for transition zone
for access to pool deck 1,046 SF $3.00 $3,138
Demo and remove (E) landscape area, for
new exit walkway 314 SF $2.00 $628
Demo and remove (E) chainlink fence due to
building expansion 1 LS $3,000.00 $3,000
Site Protective Construction
SWPP/Erosion control; including storm drain
inlet protection, fiber rolls, stabilized
construction entrance/exit, and curb inlet 1 LS $1,000.00 $1,000 Subtotal For Site Preparation: $7,766
SITE IMPROVEMENT Quantity Unit Rate Total ($)
Pedestrian Paving
(N) Apron/accessible transition at pool deck 1,046 SF $50.00 $52,300 (N) Exit pathway 314 SF $30.00 $9,420
Connect to (E) path in the park 40 LF $100.00 $4,000
(N) Courtyard, Priority 2
Courtyard paving NIC, See Priority 2
Drainage NIC, See Priority 2
Landscaping
Modify (E) planting area as required for new
exits and exit pathway - allowance 1 LS $5,000.00 $5,000 Fencing & Miscellaneous Accessories
(N) Exit gates with panic hardware,
single leaf 4'-0"wide 3 EA $5,000.00 $15,000
Subtotal For Site Improvement: $85,720
158
Conceptual Design Cost Plan
Priority 2
Martin Luther King Community Center
Alternates Cost Breakdown
March 8, 2024
mack
San Mateo MLK Community Center Resiliency and Feasibility Study 159 WORKSPACE (COL WIDTH TOTAL = 85.67 / 8")
Alternates Job #24842 mack
March 8, 2024
Remodel (E) Kitchen To Be All-Electirc Quantity Unit Rate Total ($) ADD:

Structural Upgrades - allowance 400 SF $50.00 $20,000
Finishes
Floor Finishes 400 SF $35.00 $14,000
Wall Finishes 1,040 SF $35.00 $36,400
Ceiling finishes 400 SF $20.00 $8,000
Equipments
(N) All-electric kitchen equipments, meeting
health department requirements for
commercial kitchen including grease trap, 3-
compartment sink, handwash sink, dry
storage 400 SF $450.00 $180,000
Kitchen HVAC
MAU & Exhaust 1 LS $10,000.00 $10,000
General exhaust 6 EA $2,500.00 $15,000
Electrical
Provide new all-electrical kitchen meeting
health department requirements for
commercial kitchen - provide power
connections 400 SF $65.00 $26,000
Mark-up's per Overall Summary 59.41% $183,824
Subtotal for Remodel (E) Kitchen To Be All-Electirc: $493,224 Replace (E) Paving And Improve Courtyard Quantity Unit Rate Total ($) ADD:

Demolition
Demo and remove (E) courtyard 3,298 SF $5.00 $16,490
(N) Courtyard, Priority 2
Courtyard paving 3,298 SF $35.00 $115,430
Drainage 3,298 SF $10.00 $32,980
Mark-up's per Overall Summary 59.41% $97,972
Subtotal for Replace (E) Paving And Improve Courtyard Drainage: | $262,872 160
Alternates Job #24842| mack
March 8, 2024
(N) All-Electric Pool Equipment & Electrical
Service Upgrade Quantity Unit Rate Total ($)
ADD:

Swimming Pool Equipment - Cost premium for AlI-
electric equipment (ref. Aquatic Design)
Service and Distribution
Upgrade existing service from 600A to 1000A
208/120V. Upgrade existing transformer pad
and main indoor switchboard, 36kAIC and
feeder breakers. Upgrade associated feeders 1 EA $101,400.00 $101,400 Replace equipment below:

Panel 250A 208/120V 3Ph 22kAIC for Pool 1 EA $7,500.00 $7,500 Panel 250A 208/120V 3Ph 22kAIC for HVAC
1 EA $7,500.00 $7,500
Panel 150A 208/120V 3Ph 22kAIC for hot
water systems 1 EA $5,100.00 $5,100
Panel 150A 208/120V 3Ph 22kAIC for
Auditorium 1 EA $5,100.00 $5,100
Panel 150A 208/120V 3Ph 22kAIC for 4 EA $5,100.00 $20,400 Provide TVSS for each panelboard 8 EA $4,100.00 $32,800 Mark-up's per Overall Summary 59.41% $106,825
Subtotal for (N) All-Electric Pool Equipment & Electrical Service Upgrade: $286,625 San Mateo MLK Community Center Resiliency and Feasibility Study 161 162
Appendix:

10. Site Visit Notes and Code Analysis
'urban design
San Mateo MLK Community Center Resiliency and Feasibility Study 163 Building and Pool Assessment
• Accessible Plumbing Fixtures are not present Resiliency Assessment:
in men's and women's locker rooms, including
toilets, showers, and lavs. One new accessible Preliminary questions for City and user groups: what toilet and shower is provided in a family changing are the requirements for the following elements room opening onto pool deck. of a resilient building (answers from discussion in • Plumbing fixture count for lavatories at pool area Teams meeting with City staff on February 15, 2024, may be below code requirements (2 required in indicated in italics):
men's, one provided) • Planning: How many people for what duration? • Privacy concerns in locker rooms with partial How many meals served? At 50 square feet height partitions. per person for sleeping cots, the gym could • Pool deck exiting does not meet current code accommodate about 62 cots, and MRP 3 could requirements. accommodate another 42. 40 people on cots in • Roof leaks: status and extent of roof leaks the gym is sufficient. unknown. Stains are evident on ceiling tiles in Power: Duration and extent of backup power some areas and staff had said it is an ongoing needed. One strategy: Provide backup power issue. in areas of building intended to be used during
• Kitchen: may need upgrades to comply with emergencies. Goal for backup power is 3 days. health code requirements. (Three bowl sink, hand Power could be provided through generators or washing, etc.) PV, depending on cost and funding.
• Curb at pool deck presents a tripping hazard and • Water supply: Does there need to be a water an impediment to accessibility. storage tank to supply water? For what duration? • Roof drainage: Roof downspouts drain onto the No on-site water or wastewater storage required. pool deck and into the courtyard with indirect Portable toilets will be provided if needed. connections to area drains in both areas. It would • Storage for sanitary sewer waste in the event be preferable for roof drains not to flow across sewers are not working? Not required. paving. • Access to showers and bathing facilities during an emergency? Desirable to have access to locker
room facilities from the main building.
• Level of structural upgrade. This will not be
considered an essential facility.

Pool and Pool Deck:
• Pools:
• According to original building drawings, pool is
75'-1" long by 35' wide (2,628 sf).
• Lap pool ranges from 3'-6" to 9'-0" deep.
(diving board shown on original drawings has
been removed.)
raining pool is 16'-6" × 20'-0" (330 sf). There
are steps into the training pool across the
east end.
• Pool Deck:

The concrete pool deck shows evidence of
cracking and crack repairs over time, with
some water ponding from recent rains.

There is one on-deck shower (with surface-
mounted piping).

There is a high-low drinking fountain with
bottle filler
164
• At least one building downspout drains partitioned off to create a family/all gender directly onto the pool deck, without a nearby changing room with an accessible bench (no drain. plumbing fixtures)
• There is a 6" curb along the side of the pool Women's locker room:
deck adjacent to the equipment room and Similar to Men's locker room. the office entrances, and adjacent to the Includes 8 metal lockers (in two tiers)-worn storage room. Curb ramps have been added and rusted in spots. to provide wheelchair access, but this change A dressing room within the women's locker in elevation could present a tripping hazard. room is now used for storage. • One gate with panic hardware provides for Plumbing drawings from a remodel include 4 egress from the pool deck. toilets and two showers, one large and one small. This fixture count was not verified.

Family Restroom/Changing Room: Apparently in a later remodel, a wall dividing two toilet rooms was removed to make one
• A spacious family changing room has been larger room. recently been added within the existing building, Photos show a gang shower with 4 heads (not opening onto the pool deck. It includes an in floor plans). Two of the heads have controls accessible toilet (unenclosed), accessible shower, on an adjacent wall. bench, and baby changing station. A wheelchair A back-of-house passageway known by the ramp has been provided to access this room from staff as the "creepy hallway" runs between the pool deck. (The room is about 1' above the the locker rooms and the remainder of the level of the pool deck). community center.

The original building drawings show a second
Pool Entrance and Locker Rooms: men's dressing room opening off of this hallway, but at least a portion of that area has
• The pool entrance and locker rooms are been converted into the family restroom/ connected to the community center structure, changing room noted above. but they do not have public access from the Note: There appear to be no accessible restroom interior of the Community Center portion of the fixtures for pool users except the one toilet, building. It was pointed out that if showers are shower and lavatory located in the recently required as a part of the resilience study, the added Family Restroom/Changing Room. showers within the pool locker room will not be
generally accessible from the Community Center. Pool Equipment Room and Storage Room:

Pool support functions include offices and a
small lobby, accessible from the street, with a pay • A pool equipment room opens off the pool deck window. Storage room opens off the pool deck.
• Construction of locker rooms and offices consists
of CMU walls with exposed wood beam ceilings, Community Building Interior:
painted. Some partitions within the locker rooms
are made of wood studs and plywood panels, Multi-Purpose Room (with platform):
open at the top. Fire sprinklers are exposed. Large room with raised stage, about 30" above . Men's locker room: main floor. Includes a wheelchair lift for access to includes two toilets, two urinals and one the platform. Wood floor. lavatory. No accessible fixtures (with the • Adjacent kitchen included gas stove with fire exception, possibly of the lavatory). suppression system, residential refrigerator, Includes a changing area with wood benches double-bowl sink, Commercial dishwasher, attached to the wall, but no lockers. storage cabinets. We were told that additional The shower is a gang shower with five shower dry storage area is provided in other areas of the heads and a center drain. Controls for two of building. A window with a roll down counter door the shower heads are located on an adjacent opens onto the multi-purpose room. wall, at least three to five feet away.

A portion of the men's locker room has been
San Mateo MLK Community Center Resiliency and Feasibility Study 165 Other Building Areas:
• A courtyard in the center of the building includes
roof drains that discharge to the pavement. One
drain near the center of the courtyard appears
to be the only drainage in this area. (Possible
overflow/flooding issue if this drain becomes
clogged.) Settlement over time appears to have
occurred so that roof drains don't have a clear
sloped path across the paving to the courtyard
drain.
• The front, curved area of the building was a later
addition, and it is currently being remodeled. It is
our understanding that a small warming kitchen is
being added in this area.
• Office areas include open office work stations
and some enclosed offices.
• There is evidence of leaks in the ceiling tiles in
some locations. We were told that there have
been roof leaks, and efforts to address them are
ongoing. Apparently water becomes trapped in
the roof assembly.
• A children's playroom includes a kid's toilet area
that is currently being used for storage. Original
windows in this room appear to be single pane.

In the lower, operable panes, the glass has been
painted.
. A gym with full basketball court was in use at the
time of the walk-through. Gym size appears to
accommodate one basketball court with a small
(three to five foot) perimeter. Gym has CMU walls
and exposed wood ceiling structure with large
glulam beams.
166
Code Review
Plumbing Fixture Count (for Locker Rooms) per CBC CBC Chapter 31B, Public Pools 3116B:

Pool configuration, CBC 3111B- 3115B: By ADG
Water Area:

Lap Pool 2,628 sf 3114B.3 Deck slope. The pool's deck surface shall have a Tot Pool 330 sf slope of no less than 1 percent ("s inch per foot) but no more Total Area 2,958 sf than 2 percent (' inch per foot) away from the pool to a deck drainage system and shall be constructed and finished to pre Total Users (@1 user/15 sf water area 198
Users, Male and Female: 99 each
CBC 3116B Dressing, Shower and Toilet Facilities
Plumbing Fixtures Required in Locker Rooms(CBC
3116B):
3116B.2 Number of sanitary facilities. For the purpose of Men Women this subsection, one pool user shall be considered for every Toilets 15 square feet (1.39 m) of pool water surface area and/or Urinals IN N
spray ground splash sone area.

Lavatories 2
Showers (one per 50 pool users) 3116B.2.1 Showers. One shower shall be provided for Drinking Fountains 2 every 50 pool users.
3116B.2.2 Toilets. Separate toilet facilities shall be pro- Pool Deck Exiting: vided for each ser. One toilet shall be provided for every 60 women or less and one toilet plus one urinal for every 75 men or less.

CBC Table 1004.5 includes the following allowances
Skating rinks, swimming pools 3116B.2.3 Lavatories. One lavatory shall be provided for Rink and pool every 80 pool users.
50 gross
Area Occupant
Load CBC 3116B.3 Construction
Pool Water 2,958 sf
Pool Deck (gross area 8,259 sf 551
3116B.3 Construction.

Total 11,217 611
3116B.3.1 Floors. Floors shall have a hard, nonabsorbent surface, such as portland cement concrete, ceramic tile or Minimum 3 exits required per CBC Table 1006.3.3 (4 other approved material, which extends upwards onto the wall at least 5 inches (127 mm) with a coved base. Floors exits required if occupant load exceeds 1000) which may be walked on by a wet pool user shall be slip resistant. Floors shall be sloped not less than ¼ inch (6.4 Exit width required (using an occupant load factor of m) per foot to floor drains or other approved surface

0.2 (per CBC 1005.3.2)): 122.2" or 10'-1". One existing water disposal areas. Carpeting and other similar artificial foor covering shall not be permitted on shower and toilet 4' wide gate with panic hardware exits from the pool room floors. area out towards the street.
3116B.3.2 Interior surfaces. The materials used in the
walls, except for structural elements, shall be of a type In future, a discussion with the building official which is not adversely affected by moisture. could be helpful to review how the occupant load is
calculated, whether exiting can go back through the
building, and whether some areas can be designated SECTION 3117B as "Safe Dispersal Areas" within the fence line per DRINKING FOUNTAINS CBC 1028.5. One guarded jet drinking fountain shall be provided for the first 250 pool users and an additional fountain shall be pro- vided for each additional 200 pool users or fraction thereof.

The number of pool users shall be determined according to Section 3116B.2.

San Mateo MLK Community Center Resiliency and Feasibility Study 167