Sammamish Plateau Water And Sewer District
Special DistrictWA
Posted
Oct 29, 2026
Nov 24, 2026
RFQ - South Plateau Parallel Conveyance Interceptor - Consultant Design Services
Sammamish Plateau Water and Sewer District (District) is seeking SOQs from consultants to provide design services for the construction of the South Parallel Conveyance Interceptor project. The project will install approximately 5,000 LF of 20-inch low pressure sewer main along the south side of SE 43rd Way extending from the Highland Creek Parallel sewer to the District�s Control Structure and will bypass the control structure to connect directly into existing regional conveyance infrastructure. This parallel sewer will provide redundancy and reduce high velocity flows by splitting the flow path as the District�s sanitary sewer flows increase in the future.
