CONSTRUCTIONRECOMMENDED

Santa Clara Valley Transportation Authority Agenda VTA’s BART Silicon Valley Phase II Oversight Committee 2026-06-11

VTA Plans Major Amendment to KST Tunnel Contract

Up to $3,547,086,911 total contract value; current Board Action authorization limited to an amount not to exceed $400,000,000 for modifications to Stage 1 and pre-tunneling construction workSanta Clara Valley Transportation AuthorityKIEWIT SHEA TRAYLOR (KST)June 11, 2026

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Description

The VTA BART Silicon Valley Phase II Oversight Committee agenda proposes Board authorization to amend and restate the design-build agreement with Kiewit Shea Traylor for the tunnel and trackwork package. The action would support up to $3.55 billion in total contract value, with an immediate authorization cap of $400 million for Stage 1 modifications and pre-tunneling construction.

Contract Details

Contract Amount

Up to $3,547,086,911 total contract value; current Board Action authorization limited to an amount not to exceed $400,000,000 for modifications to Stage 1 and pre-tunneling construction work

Vendor

KIEWIT SHEA TRAYLOR (KST)

Agency

Santa Clara Valley Transportation Authority, CA

Contract Type

CONSTRUCTION

Document Date

June 11, 2026

Renewal Info

Represents an amendment and restatement of the existing design-build agreement for Contract Package 2, including additional Stage 1 funding and establishing a reduced Stage 2 scope under a target price/incentive-based model; further funding for Stage 2 requires a separate future Board action.

Related Contracts

Santa Clara Valley Transportation Authority Board of Directors Regular Meeting Agenda 2026-06-26

PENDING

Santa Clara Valley Transportation Authority (California)Up to $3,547,086,911 total contract value; current Board authorization not to exceed $400,000,000 for Stage 1 modifications and pre-tunneling workJune 24, 2026

Issuing Agency