Santa Clara VTA reinforced single-bore tunnel alignment on the $12.7 billion BART Silicon Valley Phase II line, sealing Bay Area rail extension and pushing forward San Jose–Santa Clara transit unity.

This is reported by the railway transport news portal Railway Supply.

Santa Clara VTA Advances BART Tunnel Expansion Plan
Photo: Santa Clara VTA

Santa Clara VTA Endorses Large Single-Bore Strategy

The Santa Clara VTA made its mark when it voted to approve a single-tunnel design for the expansion of its BART Silicon Valley Phase II expansion. This came after technical evaluations had gone on for months with independent peer review.

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National transit experts studied safety considerations, economy, and engineering difficulties prior to supporting the single-bore concept. It accommodates two-way service in one tunnel with reduced surface interference and streamlined operations through the middle of downtown San Jose.

Since VTA now possesses the tunnel boring machine, it has direct control over tunneling advancement as well as equipment performance. This provides more accountability, improved risk taking, and increased schedule dependability during the course of constructibility.

Santa Clara VTA Strengthens Regional Rail Connectivity

The BART Silicon Valley Phase II project spans six miles, linking Berryessa/North San Jose Station to Santa Clara. It features five miles of underground tracks, three subway stations—at 28th Street–Little Portugal, downtown San Jose, and Diridon—and a surface station in Santa Clara.

The new maintenance and storage facility will accommodate both Santa Clara and SanJose, minimizing fleet administration and reducing downtime. Due to the scale of the project, VTA aims to see better travel times, increased economic development, as well as cleaner transportation modes for Silicon Valley communities.

VTA is even partnering with Herrenknect engineers to oversee tunnel boring construction. This cooperation is going to hinder delays, preserve accuracy, as well as make massive machines deliver under harsh soil situations.

Single-bore reduces community disturbances and maintains downtown infrastructure as well. In consolidating excavation alongside station building, engineers can gain greater speed on the overall job while achieving easier access to cities.

As design proceed, Bay Area becomes another step nearer to complete BART connectivity throughout Silicon Valley. Leaders regionally describe the undertaking as a generational investment in transportation that is sustainable as well as regional unity.

Source: www.progressiverailroading.com

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What is the purpose of the Santa Clara VTA BART tunnel project?

The Santa Clara VTA tunnel aims to expand BART service through downtown San Jose to Santa Clara, improving mobility and supporting economic growth in Silicon Valley.

How much will the Santa Clara VTA BART Phase II project cost?

The project budget is estimated at $12.7 billion and includes six miles of new track, four stations, and a maintenance facility.

When will construction on the Santa Clara VTA tunnel begin?

VTA plans to advance to 60% design completion soon, keeping the project on schedule for tunnel boring and future revenue service launch.

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