Trade Package - Airport Substation Transformer Upgrade Project - TP 08 - Earthwork/Trenching

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-08 Trade Package Title: Earthwork/trenching Description of the Trade Package Scope of Work: Excavation, backfill and subgrade preparation including shoring for below grade structures, precast trench and conduit. Scope includes furnishing and installation of below grade precast vaults adjacent to existing structures. Trade Package Bid Due Date and Time: RFQ APPLICATION DEADLINE Wednesday October 14, 2026, at 3:00 PM Main Trades of the Trade Package: Earthwork/trenching Estimated Cost: $600k 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: llilazi@webcor.com Design-Builder web link to the Trade Package or more information: https://app.buildingconnected.com/projects/6ab167b124d2d8085c359b83/bid-packages/6ab168cca270a735781bc793/overview

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