Mercer Island Pump Station No. 4

PROJECT DESCRIPTION

Construction of a new sewer pump station on the shore of Lake Washington.

  • Construction was over 60’ deep, 45’ below the water level, less than 30’ from the lake shore.
  • Construction took place beside and underneath the approach to the I-90 floating bridge.
  • Included use of Stellar J’s shoring for a microtunnel into the lake.
  • Included construction and landscaping of the lake’s shoreline.