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Completed – October 2016

The County issued final acceptance for this project on October 11, 2016.

Project description

In early 2016, work began a section of the Eastside Interceptor (ESI) in Bellevue. The ESI sewer line that carries wastewater from homes and businesses in Bellevue, Kirkland, Redmond, Issaquah, and the Sammamish Plateau to the South Treatment Plant in Renton. Work included:

  • Installing pipe lining along approximately 1,360 feet of the 72-inch diameter pipe
  • Excavation at three locations to allow access to the pipeline
  • Installing erosion control, supports, dewatering wells and monitoring equipment
  • Restoring areas disturbed by construction

This work is part of a program to restore corroded sewer lines throughout the regional wastewater system. Pipe lining is a cost-effective way of maintaining the sewer lines. It saves on materials and energy use, when compared to installing new sewer lines.

There are three work areas, all along the pipeline, and generally adjacent to the railroad tracks which cross Northeast 8th Street, just east of 116th Avenue Northeast. There is one work area on the south side of 8th Street and two on the north side.