DEPARTMENT
Infrastructure Division
AGENDA NO.
7b
MEETING DATE
May 14, 2024
Last updated: 05.03.2023
AGENDA ITEM
Public Utilities Commission
City and County of San Francisco
Calendar: Consent Calendar
Project Manager: Ryan Freeborn
Approve Increase to Construction Cost and Duration Contingencies for Contract No.
WD-2843, 16-, 12-, and 8-Inch Ductile Iron Water Main Replacement
Summary of Proposed
Commission Action:
Approve an increase in the amount of $450,000 to the cost contingency and an increase of 60 calendar days to the duration contingency for Contract No.
WD-2843, 16- , 12 -, and 8- Inch Ductile Iron Water Main Replaceme nt on
Diamond St from 27th St reet to Diamond Heights Blvd, 28th and Duncan Streets from Douglass to Noe Streets , Valley St reet from Diamond to Noe Streets, and Noe St reet from Duncan to Valley Streets , with M Squared Construction Inc., for a new total contract amount limit of up to $10,132,240 and a new contract duration limit of up to 789 consecutive calendar days (approximately two years and two months), to address remaining work scope associated with San Francisco Public Works paving restoration within the project work limits and potential future change orders associated with differing site conditions.
Background: The San Francisco Public Utilities Commission (SFPUC) Water Enterprise Local Conveyance/Distribution System Program provides for the replacement of old water pipes that have either been damaged or are at the end of their useful service life to ensure reliable water delivery within the City. Contract No. WD -2843 provides for replac
ement of cast iron water
mains that the City installed between 1923 and 1963, which now require replacement due to their age of between 59 to 99 years.
On January 25, 2022, by Resolution No. 22- 0018, this Commission awarded Contract No. WD -2843, 16- , 12- , and 8 -Inch Ductile Iron Water Main Replacement on Diamond St from 27th St reet to Diamond Heights Blvd, 28th and Duncan Streets from Douglass to Noe Streets, Valley St reet from Diamond to Noe Streets , and Noe St from Duncan to Valley Streets . The original contract amount was $8,802,037, and the original construction contract duration was 663 consecutive calendar days.
Scope of Contract: The contract work location is in San Francisco's Diamond Heights and Noe Valley residential districts.
The contract work consists of installing:
• 13,640 feet of 8-inch to 16-inch ductile iron water conveyance pipe; and
Agenda Title: WD-2843, 16-, 12-, and 8-Inch Ductile Iron Water Main Replacement on Diamond St from 27th St to Diamond Heights Blvd, 28th and Duncan Sts from Douglass to Noe Sts, Valley St from Diamond to Noe Sts, and Noe St from Duncan to Valley Sts.
Commission Meeting Date: May 14, 2024
• ancillary water service pipe and curb ramps including pavement restoration.
Modifications to the
Contract:
Amendment No.1: Effective July 1, 2022 , the SFPUC amended the Contract by revising the Agreement and Section 00 73 02: Contract Time and Liquated Damages , to remove the pre -construction duration of 120 consecutive calendar days for procuring materials.
Modification Nos. 1 to 5: Staff increased the Contract cost by $879,361 and increased the contract duration by 60 calendar days , within the original contract cost and duration contingenc ies, for procurement and installation of Emergency Fire fighting Water System piping materials at 6th and Market Streets; implementation of street tree protection requirements; additional work related to differing site conditions; additional costs associated with use of low profile excavating equipment due to insufficient San Francisco Municipal Transportation Agency resources to perform de -energization of overhead catenary system (OCS) while performing construction work adjacent to OCS lines; and addition of San Francisco Public Works paving restoration within the project w
ork limits in order to minimize public
impacts; increasing the contract amount to $9,681,398 and increasing the contract duration to 723 consecutive calendar days.
Recommended Increase to Cost and Duration Contingency:
Staff re commends approval of an increase of $450,000 to the cost contingency and an increase of 60 calendar days to the duration contingency to address remaining work scope associated with San Francisco Public Works paving restoration within the project work limits and potential future change orders for additional work associated with differing site conditions, for a total contract amount limit of up to $10,132,240 and a total contract duration limit of up to 789 consecutive calendar days.
Funding and Costs: Funding Source: Local Conveyance/Distribution System Program, and San Francisco Public Works Street Resurfacing Program -funded Project No. 10032577, 16-, 12- , and 8- Inch Ductile Iron Water Main Replacement on Diamond St from 27th St to Diamond Heights Blvd, 28th and Duncan Sts from Douglass to Noe Sts, Valley St from Diamond to Noe Sts, and Noe St from Duncan to Valley Sts.
Original Contract Amount: $8,802,037
Original 10% Cost Contingency: $880,203
Recommended Additional Cost Contingency: $450,000
Total Revised Contract Cost Limit: $10,132,240
Schedule: Notice-to-Proceed Date: July 19, 2022
Original Construction Contract: 663 consecutive calendar days Original 10% Duration Contingency: 66 calendar days
Recommended Additional Duration Contingency: 60 calendar days Agenda Title: WD-2843, 16-, 12-, and 8-Inch Ductile Iron Water Main Replacement on Diamond St from 27th St to Diamond Heights Blvd, 28th and Duncan Sts from Douglass to Noe Sts, Valley St from Diamond to Noe Sts, and Noe St from Duncan to Valley Sts.
Commission Meeting Date: May 14, 2024
Total Revised Contract Duration Limit: 789 consecutive calendar days
Local Business
Enterprise
Participation and Non-
Discrimination in
Contracting:
The Contract Monitoring Division established a 15% Local Business Enterprise (LBE) subcontracting requirement for this contract. The contractor committed to 15.47% LBE participation with its bid submittal.
Agenda Title: WD-2843, 16-, 12-, and 8-Inch Ductile Iron Water Main Replacement on Diamond St from 27th St to Diamond Heights Blvd, 28th and Duncan Sts from Douglass to Noe Sts, Valley St from Diamond to Noe Sts, and Noe St from Duncan to Valley Sts.
Commission Meeting Date: May 14, 2024
PUBLIC UTILITIES COMMISSION
City and County of San Francisco
RESOLUTION NO.
WHEREAS, The San Francisco Public Utilities Commission (SFPUC) Water Enterprise, Local Conveyance/Distribution System Program provides for the replacement of old water pipes that have either been damaged or are at the end of their useful service life to ensure reliable water delivery within the City; and
WHEREAS, On January 25, 2022, by Resolution No. 22-0018, this Commission awarded Contract No. WD-2843, 16-, 12-, and 8-Inch Ductile Iron Water Main Replacement on Diamond St from 27th St to Diamond Heights Blvd, 28th and Duncan Streets from Douglass to Noe Streets, Valley St from Diamond to Noe Streets, and Noe St from Duncan to Valley Streets. to M Squared Construction Inc.; and
WHEREAS, The original contract amount was $8,802,037 and the original construction contract duration was 663 consecutive calendar days; and WHEREAS, The contract Notice-to-Proceed date was July 19, 2022; and WHEREAS, By Amendment No. 1, the SFPUC corrected a term in the original contract.
Modification Nos. 1 through 5 increased the contract by $879,361, within the original contract cost contingency, increased the contract amount to $9,681,398, to perform procurement and installation of Emergency Firefighting Water System piping material at 6th and Market Streets; implementation of street tree protection requirements; additional work related to differing site conditions; additional costs associated with use of low profile excavating equipment due to insufficient San Francisco Municipal Transportation Agency resources to perform de - energization of overhead catenary system (OCS) while performing construction work adjacent to OCS lines; and addition of San Francisco Public Works (SFPW) paving restoration within the project work limits in order to minimize public impacts , with an increase of 60 calendar days to the contract duration; and
WHEREAS, Staff requests approval of an increase of $450,000 to the cost contingency and an increase of 60 calendar days to the duration contingency to address remaining work scope associated w ith SFPW paving restoration within the project work limits and potential future change orders associated with differing site conditions, for a total contract amount limit of up to $10,132,240 and a total contract duration limit of up to 789 consecutive calendar days; and WHEREAS, C ontract Monitoring Division established a Local Business Enterprise (LBE) subcontracting participation of 15% for this contract, and the contractor committed to
15.47% LBE participation with its bid submittal; and
WHEREAS, Funds a re available from Local Conveyance/Distribution System Program, and San Francisco Public Works Street Resurfacing Program -funded Project No. 10032577, 16-, 12-, and 8-Inch Ductile Iron Water Main Replacement on Diamond St from 27th St to Diamond Heights Blvd, 28th and Duncan Sts from Douglass to Noe Sts, Valley St from Diamond to Noe Sts, and Noe St from Duncan to Valley Sts.; now, therefore, be it
RESOLVED, That this Commission hereby approves an increase of $450,000 to the existing cost cont ingency and an increase of 60 calendar days to the existing duration contingency for Contract No. WD -2843, 16- , 12- , and 8- inch Ductile Iron Water Main Replacement on Diamond St reet from 27th St to Diamond Heights Blvd, 28th and Duncan Streets from Douglass to Noe Streets , Valley St from Diamond to Noe Streets , and Noe St reet from Duncan to Valley Streets, with M Squared Construction Inc., for a total cost contingency amount limit of $1,330,203 and a total duration contingency limit of 126 calendar days, fo r a total contract amount of up to $10,132,240 and a total contract duration of up to 789 consecutive calendar days.
I hereby certify that the foregoing resolution was adopted by the Public Utilities Commission at its meeting of May 14, 2024.
Secretary, Public Utilities Commission