Skip to main content

< Return to previous page

King County, Washington, Completes Challenging Sewer Bypass and Rehab of Eastside Interceptor

Liner application

King County’s Eastside Interceptor (ESI) collects the majority of wastewater flows from the Puget Sound Area Cities of Kirkland, Bellevue, Mercer Island, Sammamish, Issaquah, Newcastle and Renton, and conveys it to the County’s South Treatment Plant. This aging reinforced concrete pipe (RCP) interceptor was constructed over 50 years ago and corrosion caused by hydrogen sulfide (H2S) gas has begun to take its toll on the pipe’s interior.

Carollo utilized two-years of flow monitoring data that was collected at the project site to conduct its own design capacity determination.

Click here to read the article: