Structural concrete work for airport transformer upgrade
Trade Package - Airport Substation Transformer Upgrade Project - TP 10 - Structural Concrete, Solicitation 307240, issued by San Francisco County.
At a glance
San Francisco International Airport is seeking a structural concrete contractor for transformer oil containment pads, switchgear pads, and control enclosure pads as part of a major substation upgrade project. Work must maintain 24/7 airport operations and comply with endangered species protection requirements. Bids due October 14, 2026.
Key facts
- Issuing agency
- San Francisco County
- Solicitation number
- 307240
- Type
- purchase
- Posted
- Sep 24, 2026
- Response deadline
- Oct 14, 2026, 6:00 PM EDT
- Place of performance
- San Francisco County, CA
- Official posting
- Documents, addenda and the procurement contact, free with an account.
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Official description
Solicitation #11887.67 - TP 10. Issued by Design-Builder. Design-Builder Firm Name: Webcor Project Overview: The Airport Substation Transformer Upgrade Project (Project) will replace the two existing Airport Substation transformers with three new 55-MVA transformers (one will serve as a backup), the existing switchgear equipment, and other supporting electrical systems. This contract will increase capacity and improve power supply reliability and redundancy for power supply scenarios outside of normal perations. The Project is one of the two substations that provides power to the Airport, which is a campus operational twenty-four (24) hours a day throughout the year. The Airport shall remain operational at all times during the project's implementation. The Project is also located on the West of Bayshore (WOB) property owned by the Airport. The WOB property contains major utilities, water pump stations, and a biologically sensitive habitat that supports endangered species. The Airport is implementing a long-term Recovery Action Plan for the San Francisco garter snake. Services will need to be implemented in phases, and all the requirements to ensure no disruption to Airport Operations and avoid and minimize impacts to the WOB San Francisco Garter Snake Recovery Action Plan during construction should be applied. Trade Package No.: TP-10 Trade Package Title: Structural Concrete Description of the Trade Package Scope of Work: Structural concrete for transformer oil containment and pads, switchgear pads, and control enclosure pads.
Trade Package Bid Due Date and Time: RFQ APPLICATION DEADLINE Wednesday October 14, 2026, at 3:00 PM
Main Trades of the Trade Package: Structural Concrete Estimated Cost: $1.9M CMD LBE Participation Requirement: 100% Design-Builder requirements or prequalification criteria: Please see Webcor prequalification requirements in the Design Builder Weblink below. Contact for Trade Package information: Leila Lilazi; Email: (on the official posting) Design-Builder web link to the Trade Package or more information: https://app.buildingconnected.com/opportunities/6ab5dc88c1d44533bb98a39b/info
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