DEPARTMENT
Infrastructure
AGENDA NO.
6a
MEETING DATE
March 28, 2023
APPROVAL:
COMMISSION
SECRETARY
Donna Hood
AGENDA ITEM
Public Utilities Commission
City and County of San Francisco
Construction Closeout with Modification: Consent Calendar Project Manager: Tim Parkan
Approve Closeout and Modification for Contract No. HH-1002R, O’Shaughnessy Dam Fall Protection Improvements and Spillway Access
Summary of
Proposed
Commission Action:
Accept work performed by Mountain Cascade, Inc. under Contract No.
HH-1002R, O’Shaughnessy Dam Fall Protection Improvements and Spillway Access; approve Modification No. 2 (Final), decreasing the contract amount by $8,000, and increasing the contract duration by 141 consecutive calendar days , to complete warranty submissions and to negotiate a c redit for reduced scope , for a total contract amount of $1,578,355 and a total contract duration of 470 consecutive calendar days (approximately one year four months); and authorize final payment to the contractor.
Background: The O’Shaughnessy Dam is located 140 miles east of San Francisco, CA in Yosemite National Park, Tuolumne County. Initially constructed in the 1920s and serving as the main structure for retaining water in the Hetch Hetchy Reservoir, O’Shaughnessy Dam is a key element of the Hetch Hetchy facilities that also include the Hetch Hetchy Reservoir, the Canyon Power Tunnel , and the Robert C. Kirkwood Powerhouse.
The dam, a concrete curved gravity structure, is located on the Tuolumne River. In 1938, the City raised the dam to its present -day height.
The objective of this project wa s to improve and maintain safe access to machinery and components within the dam, the specifics of which were determined from a 2009 Condition Assessment Report.
On June 8, 2021, by Resolution No. 21-0087, this San Francisco Public Utilities Commission (SFPUC) awarded Contract No. HH-1002R, O’Shaughnessy Dam Fall Protection Improvements and Spillway Access, to Mountain Cascade, Inc. The original contract amount w as $1,498,687 and the original contract duration was 329 consecutive calendar days.
Contract: HH-1002R, O’Shaughnessy Dam Fall Protection Improvements and Spillway Access Commission Meeting Date: March 28, 2023
Description of Scope
of Work:
The c ontract work was located at the O’ Shaughnessy Dam within Yosemite National Park, Tuolumne County.
The contract work consisted of:
• Installing fall protection systems in the inclined stairways; • Improving or modifying existing fall protection systems in the ladder wells;
• Installing a new access ladder with fall protection at the spillway;
• Repairing or replacing the supports and anchor bolts for the inclined stairs; and
• Sealing existing leakage in the Control Room.
This project fell under the Project Labor Agreement (PLA) adopted by the San Francisco Public Utilities Commission.
Changes to the
Contract under
Modification(s):
Modification No. 1 increased the contract amount by $ 87,668, within the original contingency, to increase the number of repairs to concrete steps, to provide a credit for deleting construction trailers, add a self- closing gate on the spillway access ladder, add fall protection in Stairwell No. 1, modify handrails at the openings of Stairwells (No. 1, 2, 3, 7), lower ladders to transition at Stairwells (No. 4, 5, 6), provide a credit for the unused cost of Bid Item 13 (COVID-19 Preparedness and Response Plan), and provide a credit for the unused cost of Bid Item 14 (COVID-19 Impacts to Construction Activities), for a revised contract amount of $1,586,355.
Proposed Modification No. 2 (Final) is recommended by Staff to decrease the contract amount by $8,000 and increase the contract duration by 141 consecutive calendar days to allow time to complete warranty submissions and negotiate a credit for having City staff complete the Computer Aided Design (CAD) As-Built drawings, for a total contract amount of $1,578,355, and a total contract duration of 470 consecutive calendar days.
No basis exists to assess liquidated damages for delay against Mountain Cascade, Inc.
Budget & Costs: Funding: Project No. 10030758, O’ Shaughnessy Dam Access and Drainage
Original Award Amount: $1,498,687
Modification No. 1 Amount: $87,668
Modification No. 2 (Final) Amount: ($8,000)
Total Final Contract Amount: $1,578,355
Schedule: Notice-to-Proceed Date: September 27, 2021
Original Duration: 329 consecutive calendar days
Contract: HH-1002R, O’Shaughnessy Dam Fall Protection Improvements and Spillway Access Commission Meeting Date: March 28, 2023
Modification No. 2 (Final) Duration: 141 consecutive calendar days Total Final Contract Duration: 470 consecutive calendar days
Compliance With
Chapter 14B: Local
Business Enterprise
Utilization And Non-
Discrimination In
Contracting
Ordinance:
The Contract Monitoring Division (CMD) waived the Local Business Enterprise ( LBE) subcontracting participation requirement for this contract.
Recommendation: SFPUC staff recommends that the Commission adopt the attached resolution.
Attachments: 1. CMD Memorandum
PUBLIC UTILITIES COMMISSION
City and County of San Francisco
RESOLUTION NO.
WHEREAS, The San Francisco Public Utilities Commission (SFPUC), by this project, improved and maintained safe access to machinery and components by providing additional fall protection on the ladders and stairways inside the O’Shaughnessy Dam, providing a ladder access to the spillway, and repairing the inclined concrete stairs; and WHEREAS, On June 8, 2021, by Resolution No. 21-0087, this Commission awarded Contract No. HH- 1002R, O’Shaughnessy Dam Fall Protection Improvements and Spillway Access, in the amount of $1,498,687, to the responsible bidder submitting the lowest responsive bid, Mountain Cascade, Inc.; and
WHEREAS, The construction contract Notice To Proceed date was set for September 27, 2021, with an original schedule of 329 consecutive calendar days, and the contractor completed the contract work in 470 consecutive calendar days on January 10, 2023; and WHEREAS, Modification No. 1 increased the contract amount by $87,668, within the original contingency, to increase the number of repairs to the concrete steps, provided a credit for deleting construction trailers, add ed a self-closing gate on the spillway ladder access, add ed fall protection in Stairwell No. 1, modif ied handrails at the openings of Stairwells (No. 1, 2, 3, 7), lowered ladders to transition at Stairwells (No. 4, 5, 6), provided a credit for the unused cost of Bid Item 13 (COVID-19 Preparedness and Response Plan), and provided a credit for the unused cost of Bid Item 14 (COVID -19 Impacts to Construction Activities), for a total revised contract amount of $1,586,355; and
WHEREAS, Modification No. 2 (Final) is recommended by Staff to decrease the contract amount by $8,000, and increase the contract duration by 141 consecutive calendar days, to provide time for the contractor to complete warranty submissions and negotiate a c redit for having City staff complete the Computer Aided Design (CAD) As-Built drawings, for a total contract amount of $1,578,355, and a total contract duration of 470 consecutive calendar days; and WHEREAS, The Contract Monitoring Division waived the Local Business Enterprise (LBE) subcontracting participation for this contract; and WHEREAS, Funds are available from Project No. 10030758, O’ Shaughnessy Dam Access and Drainage; now, therefore, be it
RESOLVED, That this Commission h ereby accepts work performed by Mountain Cascade, Inc. under Contract No. HH-1002R, O’Shaughnessy Dam Fall Protection Improvements and Spillway Access; approves Modification No. 2 (Final), for a decrease to contract amount of $8,000 and an increase to contract duration of 141 consecutive calendar days, for a total contract amount of $1,578,355 and a total contract duration of 470 consecutive calendar days; and authorizes final payment to the contractor.
I hereby certify that the foregoing resolution was adopted by the Public Utilities Commission at its meeting of March 28, 2023.
Secretary, Public Utilities Commission
London N. Breed, Mayor
Carmen Chu, City Administrator
Stephanie Tang, Director
1155 Market Street, 4th Floor, San Francisco, CA 94103 Telephone (415) 581-2310; Fax (415) 581-2351
CONTRACT MONITORING DIVISION
OFFICE OF THE CITY ADMINISTRATOR
The Contract Monitoring Division (“CMD”) has determined that the Prime, Mountain Cascade, Inc. (“MCI”), has substantially complied with the Chapter 14B requirements associated with this project.
The LBE subcontracting participation requirement was waived for this contract due to project funding decisions by the SFPUC.
MCI was awarded the contract in the amount of $1,498,687.00, which was modified by $79,667.77 for a total amount of $1,578,354.77.
MCI did not list any LBE subcontractors on Section 00 43 36.
MCI listed the following Non-LBE subcontractor on Section 00 43 36:
Based on the foregoing, CMD concurs with the closeout of the contract. Should you have any questions, or if I can be of further assistance, please do not hesitate to contact me at [email protected].
Date: March 2, 2023
To: Tim Parkan, SFPUC
Kelly Kimes, SFPUC
From: Jovi Cuntapay-Vitin, Contract Compliance Officer, CMD
Subject: Closeout for HH-1002R O’Shaughnessy Dam Fall Protection Improvements and Spillway Access
Firm LBE Status,
Type and Size Scope of Work Listed
Amount
Rhino Safety Solutions Non-LBE Fall Protection
Installer $160,000.00
TOTAL $160,000.00