Enumclaw Wastewater Treatment Facility Expansion

Cedar River Water Treatment Facility
April 28, 2017
Hazen Reservoir
April 28, 2017
Location: Enumclaw, Washington

This project involved the expansion of the existing Enumclaw Wastewater Treatment Facility in order to meet environmental standards and accommodate future population growth. At an estimated cost of $26 million, the treatment plant expansion is the most expensive project in City of Enumclaw history.

ORA was engaged to provide geotechnical services, as well as testing and inspection of the following items:
  • Soils compaction
  • Asphalt paving
  • Reinforcing steel
  • Reinforced concrete
  • Grout
  • Reinforced masonry
  • Pachometer (locating services)