DEPARTMENT
Infrastructure
AGENDA NO.
5c
MEETING DATE
June 13, 2023
Last updated: 02.01.2023
AGENDA ITEM
Public Utilities Commission
City and County of San Francisco
Calendar: Consent Calendar
Contract/Project Manager: Jimmy Leong
Award Contract No. DB-135, O’Shaughnessy Dam New Bulkhead System
Summary of
Proposed
Commission
Action:
Award Contract N o. DB-135, O’Shaughnessy Dam New Bulkhead System (Project) to Alltech Engineering Corp., in the not -to-exceed amount of $9,857,000, and with a term of 670 consecutive calendar days (approximately one year and 10 months) , to design and build a new bulkhead system that will provide reliable and safe isolation of existing gates and valves for O’Shaughnessy Dam. This action constitutes the Approval Action for the Project for the purposes of the California Environmental Quality Act ( CEQA) pursuant to San Francisco Administrative Code section 31.04(h).
The Planning
Department determined that the Project is exempt from the CEQA. The Commission will rely on that determination to make its decision on this action.
Background: The O’Shaughnessy Dam is located 140 miles east of San Francisco and 60 miles east of Sonora in Yosemite National Park, Tuolumne County. The City and County of San Francisco (City) constructed the concrete dam initially i n the 1920s to create the Hetch Hetchy Reservoir. The City constructed the dam in two stages beginning in August 1919. In the first stage, the City completed the dam in April 1923 at a structural height of 344.5 feet (Elevation 3726.5). Beginning in April 1935, the City raised the O’Shaughnessy Dam by 85.5 feet to the current final height of 430 feet (Elevation 3812 feet). The additional height provided an increase of 143,885 acre -feet of storage and a total current capacity of 360,360 acre-feet. The dam includes a side channel spillway located at the left abutment of the dam. The outlet system includes large diameter slide gates, needle valves, and butterfly valves. Water from the reservoir flows through twelve inlets along the upstream face of the dam and then through the outlet structure via these gates and valves. The City installed most of these gates and valves when building the initial stage of the dam in 1923; they are 100 years old and require frequent inspection and maintenance to make sure they are operable. The twelve inlets along the upstream face of the dam were initially able to be isolated by a bulkhead system. This bulkhead system has fallen into disrepair and needs to be replaced in order to isolate the reservoir water from the dam inner workings safely so that maintenance can be safely performed.
The objective of this project is to build a new bulkhead system that will provide reliable and sa fe isolation of existing gates and valves in the dam for maintenance, repairs, and improvements.
Agenda Title: Contract No. DB-135, O’Shaughnessy Dam New Bulkhead System Commission Meeting Date: June 13, 2023
1155 Market Street, 4th Floor, San Francisco, CA 94103 Telephone (415) 581-2310 Fax (415) 581-2351
Scope of Contract: The Contract work location is at O’Shaughnessy D am in Yosemite National Park, Tuolumne County.
The Contract work consists of:
• Underwater investigation and collection of design data; • Development of technical requirements in conformance with the project performance criteria;
• Design and preparation of plans and specifications for the new bulkhead system;
• Procurement of subcontractor trade packages;
• Manufacture of new bulkheads;
• Removal of rust and tubercles and restor ation of the cast -iron sealing surface at the inlet; and
• Installation and testing, and removal (for later reinstallation), of the new bulkheads.
Funding and
Costs:
Funding Source: Hetch Hetchy Capital Improvement Program Project No. 10032903, O’Shaughnessy Dam Outlet Works Phase 1
Engineer’s Estimate: $10,000,000.00 with estimated Direct Cost of Construction of $6,000,000.00.
Award: Not-to-exceed $9,857,000
Schedule: Advertised: January 13, 2023
Estimated Notice-to-Proceed Date: September 1, 2023
Estimated End Date: July, 2025
Duration: 670 calendar days
Evaluation and
Selection Criteria:
Advertised: January 13, 2023
Proposals Received: On March 2, 2023, the SFPUC received three proposals.
Evaluation and Selection
The evaluation and selection process consisted of five phases: 1. Technical Proposal, 2. Diversity, Equity, and Inclusion Submittal, 3. Oral Interview , 4.
Price Proposal, and 5. Social Impact Partnership Submittal bonus evaluation .
Proposals were eligible for the award of up to a maximum of 1050 points: 395 points for the technical proposal phase, 5 points for the Diversity, Equity, and Inclusion submittal, 150 points for the oral interview phase, 450 points for the Price Proposal, and 50 bonus points for the Social Impact Partnership Submittal.
Agenda Title: Contract No. DB-135, O’Shaughnessy Dam New Bulkhead System Commission Meeting Date: June 13, 2023
1155 Market Street, 4th Floor, San Francisco, CA 94103 Telephone (415) 581-2310 Fax (415) 581-2351
The technical evaluation panel consisted of ind ividuals knowledgeable on the subject matter and included staff from the SFPUC Infrastructure Division, The San Francisco International Airport , and Pacific Gas and Electric (Hydraulic Power group). The panel reviewed and ranked the proposers during the technical proposal and oral interview phases . A separate panel of community benefits experts evaluated the Social Impact Partnership Submittal.
SFPUC received three proposals. Staff is recommending the-top ranked proposer team for contract award.
Final Score
Summary:
Technical Proposal, Diversity, Equity, and Inclusion submittal, Oral Interview, Voluntary Social Impact Partnership, and Price Proposal:
Ranking /
Proposer
Technical
Proposal
Score
(395 pts)
DEI
Score
(5)
Oral
Interview
Score
(150 pts.)
Technical
Proposal
& Oral
Interview
Scores
(550 pts)
Price
Proposal
Score
(450 pts)
Social Impact
Partnership
(SIP) Score
(50 pts)
Total
Score*
1. Alltech
Engineering
Corp
381.07 5.00 113.88 499.95 450.00 35.09 985.04
2. Ballard
Marine
Construction
395.00 5.00 150.00 550.00 358.06 29.17 937.23
3. Sierra
Mountain
Construction,
Inc
366.94 5.00 109.05 480.99 352.60 22.48 856.07
* Technical Proposal & Oral Interview Score + Price Proposal Score + Voluntary SIP Score
The Contract Monitoring Division determined that none of the proposer s is eligible for bid preference in accordance with Chapter 14B of the San Francisco Administrative Code. Thus, the above ranking remains the same a fter Contract Monitoring Division review.
Environmental
Review:
On December 2, 2022 the San Francisco Planning Department determined the Project to be categorically exempt from environmental review under the CEQA Guidelines section 15301, Class 1 (Existing Facilities) and section 15302, Class 2 (Replacement or Reconstruction) (Case No. 2022-011322ENV). The exemption determination can be found here: https://sfpuc.sharefile.com/d- s5388f3a1f0fc44b686463ef112009ff7
This action constitutes the Approval Action for the Project for the purposes of the CEQA pursuant to San Francisco Administrative Code section 31.04(h).
Agenda Title: Contract No. DB-135, O’Shaughnessy Dam New Bulkhead System Commission Meeting Date: June 13, 2023
1155 Market Street, 4th Floor, San Francisco, CA 94103 Telephone (415) 581-2310 Fax (415) 581-2351
Local Business
Enterprise
Participation and
Non-
Discrimination In
Contracting:
The Contract Monitoring Division established a 3.00% Local Business Enterprise (LBE) subcontracting requirement for both design (pre-construction) and construction phases of this contract. The contractor committed to a 3.4 % LBE participation with its proposal.
Attachment: 1. Contract Monitoring Division Memorandum
Agenda Title: Contract No. DB-135, O’Shaughnessy Dam New Bulkhead System Commission Meeting Date: June 13, 2023
1155 Market Street, 4th Floor, San Francisco, CA 94103 Telephone (415) 581-2310 Fax (415) 581-2351
Location Map
PUBLIC UTILITIES COMMISSION
City and County of San Francisco
RESOLUTION NO.
WHEREAS, The San Francisco Public Utilities Commission (SFPUC) is responsible for the operation of O’Shaughnessy Dam in Yosemite National Park, Tuolumne County, a critical component of the SFPUC Hetch Hetchy water system; and
WHEREAS, The O’Shaughnessy Dam requires a new bulkhead system that will provide reliable and safe isolation of existing gates and valves for maintenance, repairs, and improvements; and
WHEREAS, On January 13, 2023, SFPUC advertised Contract No. Contract No. DB-135, O’Shaughnessy Dam New Bulkhead System (Project); and
WHEREAS, The Engineer’s Estimate is $ 10,000,000 for this progressive design- build contract to design and build a new bulkhead system for O’Shaughnessy Dam; and WHEREAS, The contract duration is 670 consecutive calendar days; and WHEREAS, On March 2, 2023, the SFPUC received three proposals; and WHEREAS, SFPUC staff and Contract Monitoring Division reviewed the proposals for responsibility, responsiveness, and application of bid preferences, and determined that Alltech Engineering Corp is the responsible proposer that submitted the highest -scoring proposal; and WHEREAS, Contract Monitoring Division established a 3.00% Local Business Enterprise (LBE) subcontracting participation for the design (pre -construction) and construction phases of this contract, and Alltech Engineering Corp. committed to 3.4% LBE participation in its proposal; and
WHEREAS, On December 2, 2022, the San Francisco Planning Department determined the Project to be categorically exempt from environmental review under the California Environmental Quality Act Guidelines section 15301, Class 1 (Existing Facilities) and section 15302, Class 2 (Replacement or Reconstruction) (Case No. 2022-011322ENV); and WHEREAS, Funds are available from Project No. 10032903, O’Shaughnessy Dam Outlet Works Phase 1; now, therefore, be it
RESOLVED, That this Commission hereby awards Contract No. DB-135, O’Shaughnessy Dam New Bulkhead System, in a not-to-exceed amount of $9,857,000, and with a duration of 670 consecutive calendar days, to the highest ranked proposer, Alltech Engineering Corp.
I hereby certify that the foregoing resolution was adopted by the Public Utilities Commission at its meeting of June 13, 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
CITY ADMINISTRATOR’S OFFICE
MEMORDANDUM
Date: May 11, 2023
To: Jimmy Leong, SFPUC
Derek Wong, SFPUC
Gary Hom, SFPUC
From: Jovi Cuntapay-Vitin, Contract Compliance Officer, CMD
Subject: CMD Award Memo for DB-135 O’Shaughnessy Dam New Bulkhead System
The Contract Monitoring Division (“CMD”) has reviewed the proposals and supporting documentation and applied the appropriate rating bonuses submitted for the above referenced design build project. Based on this review, CMD has determined that the proposals were materially compliant with the Chapter 14B pre-award requirements.
Rating Bonus
The following is a summary of the rating bonus information:
Bidder Status LBE Bid
Discount
Alltech Engineering Corp (“Alltech”) Non-LBE Not eligible Ballard Marine Construction, LLC (“Ballard”) Non-LBE Not eligible Sierra Mountain Construction, Inc. (“Sierra
Mountain”) Non-LBE Not eligible
Score Sheets and Score Tabulations
The RFP indicates that only the highest-ranked proposer from the technical proposal, oral interview, price proposal and SIP bonus points will be shortlisted. For the three (3) shortlisted firms, CMD has reviewed the score sheets submitted by the panelists and the final score tabulations from the SFPUC. Based on this information and after application of the LBE rating bonus, the proposers are ranked as follows:
RANK FIRM
1 Alltech Engineering Corp (“Alltech”)
2 Ballard Marine Construction, LLC (“Ballard”)
3 Sierra Mountain Construction, Inc. (“Sierra
Mountain”)
The RFP indicates that a contract will be awarded to the highest-ranked proposer. Based on the foregoing, Alltech Engineering Corp. is the highest ranked proposer.
DESIGN PHASE: LBE Subconsultant/Subcontracting Participation Requirement
The LBE subconsult ing/subcontracting participation requirement for the Design Phase is 3% 1.
The 3% LBE sub requirement for the Design Phase must be met at the time of proposal. The LBE sub requirements for Design Phase can only be met by CMD certified San Francisco Micro and/or Small-LBEs or PUC LBEs.
At the time of proposal, Alltech met the 3% LBE subconsulting participation requirement by listing the following LBE subconsultants on its CMD Form 2A (CMD Contract Participation Form):
Subconsultant Scope of Work Status Listed
Participation
Credited
Participation
Water Resources
Engineering, Inc. Design Facilitator SF-LBE MBE
(Micro) 1.7% 1.7%
CADNET CAD Drawings &
Modeling
SF-LBE WBE
(Micro) 1.7% 1.7%
TOTAL 3.4% 3.4%
Alltech also listed the following non-LBE subconsultants on its CMD Form 2A:
Non-LBE Firms Scope of Work Listed Participation
Barr Engineering Design Engineer 11.4%
JF Brennan Diving Subcontractor 64.1%
TOTAL 75.5%
DESIGN PHASE: Good Faith Efforts Requirements
Alltech utilized Approach B (Inclusion of Micro -LBE) on CMD Form 2B to meet the Good Faith Efforts (“GFE”) Requirements of the Design Phase. Alltech demonstrated that it met the GFE requirements under Approach B by listing the Micro-LBE firm: Water Resources Engineering, Inc.
CONSTRUCTION PHASE: LBE Subcontracting Participation Requirement
The LBE Subcontracting Requirement is 3%2 for the Construction Phase. The LBE subcontracting requirements for Construction Phase can only be met by CMD certified San Francisco Micro and/or Small-LBEs or PUC LBEs.
Due to the anticipated time lapse between proposal submission and the submission of the construction trade bid packages, Proposers were required to submit the LBE Commitment Certification form which is confirmation by the Proposer that it will meet the LBE subcontracting participation requirement established for the Construction Phase through the various trade packages. Alltech has submitted this form.
1 The LBE subconsultant participation requirement for the Design (Pre-Construction) Phase of this project is 3.00% as the design and underwater inspection of the existing bulkhead system is best performed by specialty contractors/engineers that have extensiv e experience in similar hydraulic structures and underwater operations.
2 The LBE subcontractor participation requirement for the Construction Phase of this project is 3.00% as the fabrication and installation of the new bulkhead system is best performed by specialty contractors and divers that have extensive experience in similar hydraulic structures and underwater operations.
After award and prior to the advertisement of any trade packages, Alltech wil l consult with the CMD and submit a written plan for achieving the LBE subcontracting participation requirement for the Construction Phase. As mentioned above, the LBE subcontracting requirement for the Construction Phase will be met by the cumulative LBE participation through the various trade packages. The written plan will specify the LBE subcontracting participation requirement for each trade package based on the availability of LBEs to perform the work or supply materials and equipment for the subject trade package.
Based on the foregoing, CMD has determined that Alltech has complied with the Chapter 14B pre-award requirements. Should you have any questions, please contact me at [email protected].