This Solicitation opportunity from WSP, Antioch was posted on April 10, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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25/26-25 SFCTA - Treasure Island Road Improvement Project

Closed

46499State & Local

Submission Closed05/19/2026, 09:00:00 PM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

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NAICS: 237310

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AI Contract Overview

The contract involves the reconstruction of Treasure Island Road located on Yerba Buena Island in San Francisco. The project scope includes constructing a new soil-nail retaining wall, demolishing existing crib walls and roadway pavement, as well as performing grading, paving, drainage installation, signing, pavement delineation, street lighting, and the installation of a concrete barrier. This comprehensive improvement aims to enhance the structural integrity and safety of the roadway. The solicitation for this project is identified as "25/26-25 SFCTA - Treasure Island Road Improvement Project" with solicitation number 46499. The opportunity was posted on April 9, 2026, and responses are due by May 19, 2026. The project is being managed by WSP in Antioch under the SLED organization type, with no set-aside restrictions or specific NAICS code provided. The contract details and bidding information are accessible through the provided online portal.

General Info

Reconstruction of Treasure Island Road including retaining wall, demolition, grading, paving, and safety upgrades.

Agency

WSP, Antioch

NAICS

237310 - Highway, Street, and Bridge Construction

Place of Performance

USA

Set-Aside

NONE

Documents

Addendum 1 for Treasure Island Road Improvement Project Contract 25/26-25

amendment

High

Final Geotechnical Design Report Retaining Wall 1T Yerba Buena Island March 2026

geotechnical-report

High

Final Materials Report Yerba Buena Island Multi-Use Path Project March 2026

sow

High

Proposal and Contract Bid Item List

contract-document

High

Revised Soil and Groundwater Management Plan, Former Naval Station Treasure Island, June 30, 2025

sow

High

San Francisco County Transportation Authority Treasure Island Road Improvement Project Bidder's Bond

bid-bond

High

San Francisco Public Works Street Improvement Permit No. 26IE-00159

permit

High

SFCTA Contract 25/26-25 Treasure Island Road Improvement Project Addendum 1

amendment

High

SFCTA Contract 25/26-25 Treasure Island Road Improvement Project - Issued for Bid April 8, 2026

ifb

High

SFCTA Treasure Island Road Improvement Project Proposal and Contract

rfp

High

YBI - Hillcrest Road Improvement Project Plans, April 06, 2026

plans

High

YBI - Treasure Island Road Improvement Project LT1 Line Cross Sections

specifications

High

YBI Treasure Island Road Improvement Project - Plans - Addendum No. 1 - April 9, 2026

amendment

High

YBI Treasure Island Road Improvement Project - Plans - Issued For Bid - April 08, 2026

plans

High

1937 As-builts Plans of Bridge 4 with Existing T.I. Road Retaining Wall

other

Low

Asbestos and Lead-Containing Paint Survey Report, Geocon Consultants, Dec 2025

survey-report

Low

Disclosure of Lobbying Activities Form SF-LLL

disclosure-of-lobbying-activities

Low

Final Drainage Report for Yerba Buena Island Multi-Use Path/Treasure Island Road Improvement Project

report

Low

Site Investigation Report, Geocon Consultants, Inc., December 2025

site-investigation-report

Low

Subdivision Regulations for Treasure Island and Yerba Buena Island 2016

regulations

Low

07. 3A6414_YBI Southgate - As-Built Plans - Volume 1_2023-09-07.pdf

10. YBI - Westside Bridges Project Plans, April 06, 2026.pdf

AI Contract Breakdown

Uniform Contract Format

Timeline

PhaseClosed

PostedApr 10

Solicitation

Response DeadlineMay 19

Deadline has passed

Submission Closed

05/19/2026, 09:00:00 PM UTC

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Organization & Contact Information

AgencyWSP, Antioch

ContactsNo contacts available

OfficeN/A

Organization / Agency

WSP, Antioch

Office AddressN/A

ContactsNo contact information available

Full Description

General work description: The Project consists of the reconstruction of Treasure Island Road on Yerba Buena Island, in the City and County of San Francisco. Work includes a new soil-nail retaining wall, demolition of existing crib walls and roadway pavement, grading, paving, drainage, signing, pavement delineation, street lighting, and concrete barrier.

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