Construction Information (Foothill Blvd. near Home Depot)

Posted on 11/24/2022


The Sylmar Foothill Trunk Line is a major water pipeline used to transport large amounts of water serving the Sunland/Tujunga area of the City of Los Angeles. LADWP will replace a 3-mile section of the pipeline, referred to as Foothill Trunk Line Unit 3. Originally built in the 1930s, the existing pipeline ranges in diameter from 24 to 36 inches and will be replaced with a new 54-inch diameter pipeline to increase capacity and allow increased water flow, improving water quality as well as system flexibility and reliability.

Replacing smaller, aging steel pipes with welded steel and an Earthquake Resistant Ductile Iron Pipe (in designated areas) designed to flex with the movement of the earth, ensures water reliability.

The construction route begins on Terra Bella Street in Pacoima and continues northwest on Foothill Boulevard to its end near Hubbard Street in Sylmar. Construction of the pipeline is divided into 19 distinct Work Areas. Each Work Area is approximately 700-1,200 feet in length and will range between 4 and 10 months of construction at each location. 

• • Estimated project duration January 2016 to 2026. • •

Visit the following links for more information on this important water infrastructure improvement project,

Foothill Trunk Line - Unit 3

LADWP Intake Magazine

Video of Trunk Line


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