The Santa Clara Valley Transportation Authority (VTA) has awarded a Kiewit-led joint venture a $235 million progressive-design build contract for a key portion of the program that will link the agency’s rail system to Bay Area Rapid Transit’s (BART) via a tunnel under downtown San Jose.
Kiewit Shea Traylor（KST）合资企业由Kiewit基础设施西部，JF Shea Construction和Traylor Brothers组成，由Kiewit Engineering Group和Arup支持。
这项耗资69亿美元的巴特硅谷扩展计划是圣克拉拉县最大的单一公共基础设施项目，并计划于2030年完成。工作将涉及KST，VTA，VTA，BART，圣何塞市和圣克拉拉市之间的合作。
“Executing its first ever progressive-design build Tunnel and Trackwork contract with the joint venture of Kiewit Shea Traylor is a major milestone,” says Carolyn Gonot, VTA General Manager and CEO. “VTA looks forward to engaging with the contractors, BART, and our stakeholders to design and construct an innovative engineering solution that will benefit our Santa Clara County travelers.”
VTA’s BART Silicon Valley Phase II Extension Project (BSVII Project) is a six-mile, four station extension that will bring BART service from Berryessa/North San José through downtown San Jose to the City of Santa Clara. Five miles of the six-mile alignment will be constructed in a large-diameter, single-bore tunnel, with the remaining one mile consisting of at-grade rail.
The project includes three underground stations: 28th Street/Little Portugal, Downtown San Jose, and Diridon. It also calls for one ground-level station at Santa Clara, a train maintenance and storage facility at Newhall Yard, as well as construction of additional facilities.
KST将处理该项目的隧道的第一阶段，并将包括对创新，编程服务，工程设计服务，开放式书籍成本估算和计划开发的调查。合资团队还将审查先前完成的评估，以比较单孔和双孔隧道方法。
KST执行合伙人马特·斯科特（Matt Scott）表示，该项目的渐进设计建造方法将鼓励合资企业在设计和建设方面更具创新性，而不会牺牲质量，价格或时间表。
“We have a long history working on similar rail projects in California and across the U.S., and look forward to using our expertise and resources to support our client’s commitment to this important project in the Bay Area,” he says.
HNTB和WSP的合资企业正在为该项目提供计划管理服务，Mott MacDonald/PGH Wong Engineering Inc.合资企业正在提供通用工程服务。
The project is part of a wider effort to link the BART system to the VTA’s system to finally "ring the bay" with frequent passenger rail service. The disconnect dates back to the 1960s when BART was formed and Santa Clara County opted out of the system. With the increase in traffic congestion throughout the region in the early 2000s, the initiative to link the BART and VTA’s systems was revived.
BART Silicon Valley Extension Program is being built in two phases. Phase I, the Berryessa Extension, was a 10-mile, two-station project that opened for service in June 2020.
该机构将项目的第二阶段分为四个合同套餐，其中最大的是隧道和轨道工作，这是唯一利用渐进设计建造方法的隧道和轨道工作。然后将此软件包分为两个阶段。KST将开始在第一阶段工作，第二阶段将需要该项目的主要建筑，包括在圣何塞市中心下方的隧道。
The other three packages are design-build contracts for systems, stations and Newhall Yard and Santa Clara station. The agency is planning to award the other three contract packages beginning next year.
第二阶段项目由地方，州和联邦资源提供资金，包括联邦快速项目交付（EPD）试点计划，该计划迄今已贡献了4.35亿美元。这是该计划中接受的第一个项目，旨在加快新的固定指南资本项目，小型开始项目或核心能力改进项目的加快。新利18备用网址
These projects must utilize public-private partnerships, be operated and maintained by employees of an existing public transportation provider and have a federal share not exceeding 25% of the project cost.
An analysis of the project去年由联邦运输管理局通过《湾区新闻集团》通过《加利福尼亚公共记录法》的要求获得了。它估计项目总成本为91亿美元，该项目要等到2034年才能完成。新利18备用官网登录
在报告发布后，VTA官员为机构的财务预测辩护。
“FTA, in collaboration with VTA, has conducted a rigorous risk assessment that identifies uncertainties and provides a framework for VTA’s project team to tackle and mitigate the risks,” Gonot said in a statement at the time.
