Project–At–A–Glance

WSIP Region
San Francisco Local

Construction Complete
January, 2009

Project Complete
April, 2010

Current Status
Design

Project Cost
$12M

This project involves the construction of a 36-inch transmission main that will extend the newly installed Noe Valley main. The existing transmission main, which ends at Sanchez and 20th Streets, needs to be extended to supply additional pressure to areas of the zone where low pressure is a problem. This main will supply Sunset water to the eastern portion of the distribution zone.

Installation of this section of main will boost low pressures on the east side of San Francisco and enable City Distribution Division (CDD) to increase circulation at Sunset Reservoir.Under this project, approximately 8,000 LF of 36-inch steel pipe will be constructed. The project will include pipe jacking underneath various busy intersections, installation of isolation gate valves and vaults, manholes, cathodic protection and monitoring stations, sample taps, air valves, blow offs, and other pipeline appurtenances.