Water System Improvement Program Seismic Upgrade of BDPL Nos. 3 & 4: USD Night Work

Wednesday, June 6, 2012

USD Night Work

Union Sanitary district will be continuing their night work on Mission Blvd. USD contractor encountered a new ground conditions and will require a different technique to complete work. Neighbors may experience an increase in construction noise while construction progresses past this section. It is estimated to move through this area in a single nights work. The project will monitor noise and other environmental impacts to ensure they are within permitted limits. Traffic controls will be in place as necessary. If you have any questions please call USD Project Liaison, Conor McNamara, at (415) 200-5229.

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Project Information

The Seismic Upgrade of Bay Division Pipelines Nos. 3 and 4 (BDPL 3&4 Seismic) is part of the San Francisco Public Utilities Commission’s Water System Improvement Program. This project will seismically upgrade two drinking water pipelines where they cross the Hayward Fault in Fremont. To protect the water system, the BDPL 3&4 Seismic project is replacing large sections of the pipelines with high-tech pipe elements and structures designed to protect them from damage during a major earthquake.

The pipelines, known as Bay Division Pipeline Nos. 3 and 4, cross the Hayward Fault near the intersection of Mission Boulevard and I-680 in Fremont. All project work will take place within the SFPUC’s right of way and nearby staging areas.

The seismic upgrade of Bay Division Pipeline Nos. 3 and 4 will improve the reliability of the water system for the Hetch Hetchy Regional Water System’s 2.6 million customers in the Bay Area, including Alameda County.

Our project team is working closely with local officials to ensure construction schedules are timely and traffic and community inconveniences are minimized.

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