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Downtown Gas Pipeline Replacement Project

Throckmorton Construction
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The City of Mill Valley Department of Public works is working closely with Pacific Gas and Electric Company (PG&E) on the ongoing pipeline replacement project in the Downtown area of Mill Valley.

The purpose of this project is to enhance gas service to PG&E customers by replacing the gas lines with modern piping, creating a safer and more reliable natural gas system.  

Construction started in March and will continue through August 2014. Please note that all construction schedules are subject to change due to weather restrictions and other unforeseen delays.

Excavation and pipe replacement locations:

  • Throckmorton Avenue - from the East/West Blithedale intersection to just beyond Madrona Street.
  • Corte Madera Avenue – from Throckmorton Avenue to just beyond Lower Alcatraz Place.
  • Lovell Avenue – from Corte Madera Avenue to just beyond Madrona Street.
  • Lower Alcatraz Place – 3/4th of the street starting from Corte Madera Avenue.
  • Bernard Street – the first third of the street starting from Throckmorton Avenue.
  • Madrona Street – the first third of the street starting from Throckmorton Avenue.
  • Gardner Street - From West Blithedale Avenue to Corte Madera Avenue.

In order to minimize impacts from the construction project, PG&E coordinates the construction with a phased approach so that only targeted sections are under construction at any given time.

To further lessen the impacts during construction, PG&E representatives have conducted neighborhood outreach and are available to work business and residential customers to keep them informed of the project and to mitigate specific concerns such as driveway access, parking, and disruptions to gas service. Additionally, PG&E staff and contractors use an off-site staging area to minimize the numbers of trucks and heavy equipment on the impacted streets, and construction workers use, when possible, boring techniques to minimize disruptions to the roadway. All construction areas have highly visible signage placed in advance to inform drivers of changes to roadway configurations.

PG&E and City staff are making every effort to mitigate traffic impacts during construction in the downtown area and are working with the Mill Valley Chamber of Commerce to notify local businesses and residents of the work. The City is also working closely with PG&E to ensure that the construction work will not affect emergency vehicle access or response times.

If you have any questions or concerns specific to this project please call PG&E:

  • Customer Care Representative Aaron Murphy - 707-577-1062
  • All other PG&E related questions - 1-800-743-5000
  • If you smell gas - 1-800-743-5000 (24/7)
Last updated: 1/28/2015 10:52:14 AM