HomeMy WebLinkAboutPW San Quentin Pump Station Reconstruction PPTSan Quentin Pump Station Reconstruction Project
October 17, 2022Slide 1
San Quentin Pump Station
Reconstruction Project
San Quentin Pump Station Reconstruction Project
October 17, 2022Slide 2
San Quentin
Pump Station
(Built 1971)
Drainage Area:
400 acres
San Quentin Pump Station Reconstruction Project
October 17, 2022Slide 3
Pump StationOutfall Pipe
San Quentin Pump Station Reconstruction Project
October 17, 2022Slide 4
San Quentin Pump Station Reconstruction Project
October 17, 2022Slide 5
Bid Opening: Sept 1st, 2022
NAME OF BIDDER AMOUNT
Thompson Builders Corporation $6,538,725
JMB Construction, Inc.$6,628,300
Maggiora & Ghilotti, Inc.$6,677,000
CWS Construction Group Inc $6,955,600
Valentine Corporation $7,360,035
Terracon Constructors, Inc.$8,122,495
Design Engineer’s Estimate (updated June 2022): $3,200,000
Shipping/Hauling
Concrete
Electrical Components
Underestimated Items
San Quentin Pump Station Reconstruction Project
October 17, 2022Slide 6
Options for Reducing Costs
1.Rebid Project
•Reached out to contractors, construction managers, and other public
agencies
•General construction market has grown considerably more expensive
Example Project: Alameda County Water District-Curtner Rd Booster Station Upgrade
-Engineer’s Estimate: $4.2m
-Official Low Bidder: $6.5m
•Rebidding might result in higher bids
•Pump station is beyond its useful lifespan
2. Value Engineering
•Identify what project elements can be either removed/changed to reduce
cost
San Quentin Pump Station Reconstruction Project
October 17, 2022Slide 7
Pump StationOutfall Pipe
Value Engineering #1: Deduct slip-lining of outfall pipe
San Quentin Pump Station Reconstruction Project
October 17, 2022Slide 8
Value Engineering #1: Deduct slip-lining of outfall pipe
Estimated Savings: $396,000
San Quentin Pump Station Reconstruction Project
October 17, 2022Slide 9
Value Engineering #2: use two pumps instead of three
1 2 3
-Three pumps originally proposed
-Two pumps will still provide
100-year flood protection
Estimated Savings: $328,000
San Quentin Pump Station Reconstruction Project
October 17, 2022Slide 10
Total Construction Costs
Original Construction Bid: $6,538,725
Contingency:$685,275
Contract Total:$7,224,000
Total Value Engineering Items:$724,000
New Contract Total:$6,500,000
San Quentin Pump Station Reconstruction Project
October 17, 2022Slide 11
Value Engineering #3: CM contract & electrical components
1.Reduced Construction Management cost by $47,000
2.Modifications to the required electrical components
-not finalized yet
San Quentin Pump Station Reconstruction Project
October 17, 2022Slide 12
Construction Contract $6,500,000
Construction Management, Inspection, & Testing $515,716
Bid, Construction, & Environmental Compliance Support $130,550
Total Expenses $7,146,266
Expense Summary: COVID Relief Funds
San Quentin Pump Station Reconstruction Project
October 17, 2022Slide 13
Summary of Fund 205: Stormwater Fees
Grant Funding: Submitted Applications
Dec 2019 -FEMA Hazard Mitigation
August 2020 -State’s Urban Flood Protection
Annual Revenue $840,000
System Maintenance & Utilities $765,000
Remaining for Projects $75,000
San Quentin Pump Station Reconstruction Project
October 17, 2022Slide 14
Estimated Schedule
Contract Award October 17th, 2022
Items with long lead times:
Pumps 42 weeks
Flap Gates 10 weeks
Electrical 24 weeks
Estimated Construction Start Winter/Spring 2023
New Station Operational Fall/Winter 2023
Estimated Completion Spring 2024
San Quentin Pump Station Reconstruction Project
October 17, 2022Slide 15
Existing
Pump StationOutfall Pipe
New
Pump Station
