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King County Washington home

Eastside Interceptor Section 14 Joint and Culvert Rehabilitation

King County will repair a culvert that runs under the Eastside Interceptor Section 14 (ESI 14) sewer pipe. Crews will also build a retaining wall to support the slope at the culvert site and stabilize the stream nearby. This work will help protect the pipe from potential damage in the future. The repair project will require closing the Cross Kirkland Corridor (CKC) between Northeast 52nd Street and 108th Avenue Northeast.

ESI 14 sewer pipe is a 7-foot diameter pipe owned by King County. The pipe carries about 2.6 million gallons of wastewater a day during dry weather to the County’s South Treatment Plant in Renton. In July 2025, King County and City of Kirkland crews found a leak from the County’s ESI 14 sewer pipe that was entering the culvert. King County coordinated with Public Health – Seattle & King County, and no public health risk was identified.

Crews completed repairs to the ESI 14 sewer pipe in February. They installed a 3,000-foot temporary above-ground diversion pipe to maintain sewer service. This pipe will remain on the west side of the trail to support summer culvert repairs. After the work is completed, crews will remove the diversion pipe and restore the site.

The Eastside Interceptor is one of the largest conveyance pipes in our regional sewer system. It collects and carries untreated wastewater from local municipal sewer systems between Kirkland and Renton and sends it to South Treatment Plant, where it is cleaned and released into Puget Sound.

Project update

August 4, 2026

ESI-14 Culvert Construction Work Starting Soon

King County will repair a culvert that runs under the Eastside Interceptor Section 14 (ESI 14) sewer pipe. Crews will also build a retaining wall to support the slope at the culvert site and stabilize the stream nearby. This work will help protect the pipe from potential damage in the future. The repair project will require closing the Cross Kirkland Corridor (CKC) between Northeast 52nd Street and 108th Avenue Northeast.

Initial work on the Trail to prepare the work site will start in August.

Preparation work will include:

  • Occasional trail closure.
  • Connecting above-ground diversion pipe to maintain service.
  • Using heavy construction equipment on CKC trail.
  • Trail detour established.

For more details, read our latest project email.

Project location

Aerial photo displaying the Cross Kirkland Corridor, the above-ground pipe along west side of the trail with two metal plates with fencing at either end of the pipe, two trail access points from cross streets and two western access points that are blocked by the above ground pipe.