City of Los Angeles Large-Diameter Interceptor Sewer Tunnels

Abstract
The City of Los Angeles capital improvement program includes the construction of a new 35-km interceptor sewer. This sewer will be built as a deep tunnel with finished diameters ranging from 2- to- 4 meters. The project will be constructed concurrently in two phases; an 18-km East-West and a 17-km North- South segment. The new sewer provides additional conveyance capacity for an existing deteriorating sewer that is scheduled for rehabilitation. Large sewage spills during the El NiƱo storms of 1998 resulted in a Cease and Desist Order that established an aggressive schedule for the completion of the project.

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1999
Rapid Excavation Tunneling Conference (RETC) Proceedings

Keith Hanks
Bureau of Engineering, City of Los Angeles

Francis Fong
Jacobs Associates

William Edgerton
Jacobs Associates

Baron Miya
Bureau of Engineering, City of Los Angeles

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