Site work and renovation of a civil project in Spokane, Washington. Conceptual plans call for the renovation of a water / sewer project; and for site work for a water / sewer project.

Construct a new siphon pipeline parallel to the existing siphon under TJ Meenach Drive, including upstream and downstream vaults, drain appurtenances, and providing for emergency overflow relief to the river in the event of a major break between this location and the Wastewater Treatment Plant. The existing single barrel siphon pipe conveys most of the Cities major interceptor sewer flows to RPWRF. The existing siphon pipe has sharp angles, very steep sections, which makes it impossible to clean and or repair. All siphons are vulnerable to plugging, which can cause backups, structural damage and complete failure. This project will construct a parallel siphon sewer pipe to provide redundancy, and thus the ability to clean and repair either pipeline while still maintaining flow in the redundant pipeline. CSO 10 dry weather connections will be updated to improve operations at this site. This project is in included in the City of Spokane's FY 2023-2028 Capital Improvement Plan (CIP). As of March 3, 2023, information regarding a design team or a general contractor is not available. Construction is anticipated in 2023.* *Project information has been obtained through a public capital improvement plan (CIP). A CIP is a financial schedule for short- and long-range projects which is updated regularly. Information listed in the CIP often evolves based on funding availability and the project details, including timeline and value, are subject to change. The content management team will continue to pursue additional details as they become available.