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Eastside Interceptor Section 14 joint rehabilitation

Repairs to the Eastside Interceptor (ESI) 14 pipe that runs under the Cross Kirkland Corridor (CKC) Trail are complete. The CKC trail between NE 52nd Street and 108th Avenue NE opened Monday, February 23, 2026. 

Eastside Interceptor Section 14 (ESI 14) sewer pipe is a 7-foot diameter pipe, which carries 10 million gallons of wastewater a day on average during dry weather. In late July 2025, King County and City of Kirkland crews detected a leak from the County’s ESI 14 sewer pipe that was entering Kirkland’s piped stream. King County coordinated with Public Health – Seattle & King County, and no public health risk was identified.

In September 2025, King County Department of Natural Resources and Parks issued a Declaration of Urgency to expedite the repair efforts. The City of Kirkland also issued a Proclamation of Emergency to aid in repairs.

Project update

March 4, 2026

Repairs to the ESI 14 sewer pipe that runs under the Cross Kirkland Corridor (CKC) Trail are complete

The CKC trail between NE 52nd Street and 108th Avenue NE opened Monday, February 23.

Crews will return this summer to stabilize and repair a rockery wall and culvert located beneath King County’s pipe. These repairs will protect the pipe and trail. To support this work, the existing 3,000-foot temporary above-ground sewer pipe and the excavated access points will remain on the west side of the trail. The temporary pipe will maintain sewer service to homes and businesses while culvert repairs occur.


Temporary above-ground sewer pipe located along the west side of the trail.

The access points will be covered with steel plates and fenced off until the summer construction begins. After the culvert repairs are complete, equipment will be removed. New trees will also be planted. We will keep you updated as repair planning progresses.

What to expect before the culvert stabilization work this summer

  • A half mile of temporary above-ground pipe on the west side of the trail. 
  • Steel plates and fencing to maintain safety at the excavated access points on the west side of the trail.

Background

The ESI 14 sewer pipe is a 7-foot diameter underground pipe owned and maintained by King County. The pipe runs along the CKC Trail. It carries sewage from Kirkland to the County’s South Treatment Plant in Renton, where it is cleaned and safely discharged to Puget Sound. 

Last year, King County and City of Kirkland crews detected sewage leaking from the County pipe and entering the City’s culvert. King County crews and contractors repaired the leaking joints under the CKC Trail. Crews installed a 3,000-foot, 18-inch diameter temporary above-ground pipe ensured sewer service during the repair work. This pipe will remain on the west side of the trail to support summer culvert repairs. 

If you have any questions, please reach out to Emanuel da Silva (mano) by calling 206-406-3058 or emailing mdasilva@kingcounty.gov. We offer interpretation services at no cost. 

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.