CITY OF LOS ANGELES
DEPARTMENT OF PUBLIC WORKS

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Project Information from the Bureau of Engineering

City Sewers Completed Construction

Washington Blvd. / Grand Ave. / Hill St.
Sewer Project

The City of Los Angeles Department of Public Works repaired and replaced sewers along portions of W. Washington Blvd., S. Grand Ave., W. 18th St., and S. Hill St. Most of these sewers were built around 1900 and closed circuit television inspections show that they had severely deteriorated. Along Washington Blvd., the existing sewers are located under the Long Beach / Los Angeles light rail concrete track slab. This location had made access difficult for the City’s maintenance crews.

Whenever possible, the City builds and repairs its sewers underground with minimal disturbance to the streets and sidewalks. Two methods were used to build and repair most of the Washington Blvd. - Grand Ave. - Hill St. Sewer Project. The first was a remote controlled digging and pipe placing technology called micro-tunneling. Most work was in construction pits that were dug in the street. The other method was slip lining where a new interior pipe surface was fed into the existing sewer from other pits. A small section of the project, on W. Washington Blvd. between Hope St. and Grand Ave. was built using open cut trenching.

The new construction helps to reduce odors and prevent spills in area neighborhoods. The Washington Blvd. - Grand Ave. - Hill St. Sewer Project is one of many sewer repair projects being built or repaired throughout Los Angeles under the Collection System Settlement Agreement between the City, the U.S. Environmental Protection Agency and the Santa Monica BayKeeper.