Translate
Eastside Interceptor Section 8 rehabilitation
The Eastside Interceptor Section 8 Rehabilitation Project will repair 4,800 feet of a 90- to 96-inch wastewater tunnel in Bellevue that is nearing the end of its useful life.
Project description
The Eastside Interceptor (ESI), which consists of 14 sections, is one of the largest conveyance systems within the Wastewater Treatment Division. The ESI collects and conveys untreated wastewater from homes, businesses, and schools between Kirkland and Renton and sends it to South Treatment Plant, located in Renton, to be cleaned and released into Puget Sound.
This project will repair a 1-mile section of the ESI called Section 8 (ESI 8), starting near the intersection of Interstate-90 and Interstate-405 in Bellevue to the intersection of Coal Creek Parkway Southeast and I-405. Repairs will help the pipe last another 50 years.
Project update
Upcoming utility investigation work
Crews working for King County Wastewater Treatment Division will be conducting utility investigation fieldwork on Southeast 32nd Street along the railroad. Work will take 2-3 days to complete and is expected to begin sometime in September. An update will be posted once the schedule is finalized. Please watch for equipment and signs in the area, travel slowly and follow direction from flaggers.
Understanding site conditions and rehabilitation options
Our team is in the early stages of project design. During summer 2024, the project team will:
- Survey the project area to understand existing conditions in the Eastside Interceptor Section 8 (ESI-8) sewer line and maintenance holes.
- Conduct geotechnical surveys to understand underground conditions.
- Inform community members about the project and upcoming survey work.
- Analyze design alternatives and identify a preferred option to rehabilitate the sewer line and the temporary diversion pipe.
Check back soon for more project updates.
Sign up for project updates
Select the "Subscribe for project updates by email or text" button in the Stay informed box to get updates, surveys, notices, and other information by email and/or text. You can unsubscribe anytime.