DEPARTMENT
Infrastructure
AGENDA NO. 6g
MEETING DATE
June 25, 2024
AGENDA ITEM
Public Utilities Commission
City and County of San Francisco
Calendar: Consent Calendar
Project Manager: Aileen Caylao
Approve Increase to the Duration Contingency for WW-709R, Various Locations Sewer Replacement No. 13
Summary of
Proposed
Commission Action:
Approve an increase of 324 calendar days to the duration contingency for Contract No. WW-709R, Various Locations Sewer Replacement No. 13, with M. Hernandez Construction, Inc., for a revised contract duration limit (including contingency) of up to 830 consecutive calendar days (approximately two years and four months), due to supply chain procurement delays of high-density polyethylene pipeline materials and to address differing site conditions encount ered on Beach Street , Larkin Street and Jefferson Street, with no change to the contract amount or amount contingency.
Background: The San Francisco Public Utilities Commission (SFPUC) Wastewater Enterprise (WWE) inspected the existing sewers on the San Francisco streets listed below and identified sewers needing replacement. The City constructed the main sewers that must be replaced/lined/mortared from 1890 to 1920. The sewer pipe sizes range from 12-inch to 22-inch in diameter.
On October 11, 2022, by Resolution No. 22-0175, the Commission awarded Contract WW-709R, Various Locations Sewer Replacement No. 13 to M.
Hernandez Construction, Inc. The original contract amount was $9,872,303, and the original contract duration was 460 consecutive calendar days.
Scope of Contract: The contract work is within the City and County of San Francisco , and locations include:
• Yacht Road from Marina Boulevard to End
• Lyon Street from Girard Road to End
• Palace of Fine Arts from Lyon Street to Lyon Street
• Marina Boulevard from Yacht Road to Baker Street
• Beach Street from Polk Street to End
• Jefferson Street from Larkin Street to Hyde Street
• Jefferson Street from Hyde Street to Leavenworth Street • Jefferson Street from Jones Street to Taylor Street
• Beach Street from Hyde Street to Columbus Avenue
• Columbus Avenue from Beach Street to Leavenworth Street • North Point Street from Hyde Street to Leavenworth Street • Columbus Avenue from Bay Street to North Point Street Agenda Title: WW-709R, Various Locations Sewer Replacement No. 13 Commission Meeting Date: June 25, 2024
• North Point Street from Columbus Avenue to Jones Street • Jones Street from Beach Street to North Point Street
• Bay Street from Polk Street to Leavenworth Street
• Larkin Street from Francisco Street to Beach Street
• Bergen Alley from Hyde Street to End
The contract work consists of:
• Replacing existing sewers with approximately 85 linear feet of 12-inch diameter, 3,830 linear feet of 14-inch diameter, 320 linear feet of 18- inch diameter, and 590 linear feet of 22 -inch diameter high- density polyethylene pipe (HDPE); and
• Cured-in-place lining of approximately 420 linear feet of existing 8- inch diameter, 35 linear feet of existing 10 -inch diameter, 260 linear feet of existing 12- inch diameter, 35 linear feet of existing 16- inch diameter, 30 linear feet of existing 18-inch diameter, and 35 linear feet of existing 21-inch diameter sewers.
Modifications to the
Contract:
Recommended Increase to Contract Duration Contingency: Staff recommends the Commission approve an increase to the duration contingency of 324 calendar days, due to supply chain procurement delays of high-density polyethylene pipeline materials and to address differing site conditions encountered on Beach Street, Larkin Street and Jefferson Street, for a revised contract duration limit up to 830 consecutive calendar days, with no change to the contract amount or amount contingency.
Funding and Costs: Funding Source: SFPUC Wastewater Enterprise Renewal and Replacement Program and San Francisco Public Works Street Resurfacing Program, 10035615, Various Locations Sewer Replacement No. 13
Original Contract Amount: $9,872,303
Original 10% Cost Contingency: $987,723
Requested Additional Cost Contingency: $0
Total Revised Contract Cost Limit: $10,859,533
Schedule: Notice-to-Proceed Date: February 21, 2023
Original Contract Duration: 460 consecutive calendar days Original 10% Duration Contingency: 46 calendar days
Requested Additional Duration Contingency: 324 calendar days Total Revised Contract Duration Limit: 830 consecutive calendar days
Agenda Title: WW-709R, Various Locations Sewer Replacement No. 13 Commission Meeting Date: June 25, 2024
Project Location Map
PUBLIC UTILITIES COMMISSION
City and County of San Francisco
RESOLUTION NO.
WHEREAS, The San Francisco Public Utilities Commission (SFPUC) inspected existing sewers in the City and County of San Francisco, identified sewers needing replacement, and issued a request for bids for WW-709R, Various Locations Sewer Replacement No. 13; and WHEREAS, On October 11, 2022, by Resolution No. 22-0175, the Commission awarded Contract No. WW-709R, Various Locat ions Sewer Replacement No. 13 , to M. Hernandez Construction, Inc.; and
WHEREAS, The original contract amount was for $9,872,303 and the original contract duration was 460 consecutive calendar days; and
WHEREAS, The contract Notice-to-Proceed date was February 21, 2023; and WHEREAS, Staff recommends an increase of 324 calendar days to the duration contingency due to supply chain procurement delays of high -density polyethylene pipeline materials and to address differing site conditions encountered on Beach Street, Larkin Street and Jefferson Street, for a revised contract duration limit up to 830 consecutive calendar days, with no change to the contract amount or amount contingency; and WHEREAS, Contract Monitoring Division established a Local Business Enterprise (LBE) subcontracting participation of 20% for this contract, and the contractor’s bid committed to 20.26% LBE participation; and
WHEREAS, Funds are available from Project No. 10035615, Various Locations Sewer Replacement No. 13; now, therefore, be it
RESOLVED, That this Commission hereby approves an increase of 324 calendar days to the existing contract duration contingency for Contract No. WW-709R, Various Locations Sewer Replacement No. 13 , for a total contract duration contingency of up to 370 calendar days , for possible modification of the contract of up to 830 consecutive calendar days in duration, and with no change to the contract amount.
I hereby certify that the foregoing resolution was adopted by the Public Utilities Commission at its meeting of June 25, 2024.
Acting Commission Secretary, Public Utilities Commission