Prospect Construction would like to invite the below DBE subcontractors to bid on the King County WPTP Raw Sewage Pumps (RSP) and Grit Classifier Replacement Project:

Demolition

Rebar

Shotcrete

Cold Formed Steel Framing

Retrofit of Concrete Structures Using Bonded FRP Composites

Roof Restoration/Waterproofing

Building Insulation

Aluminum Storefront Systems

Plaster & Gypsum Board

Ceramic Tiling

Acoustical Panel Ceilings

Terrazzo Flooring Refinishing

Coating Systems (Painting)

Plastic Laminate Casework 

Automatic Sprinkler Systems

Steel Fire Tube Boilers

HVAC

Plumbing

Electrical

The objective of this project is to increase the firm capacity of the raw sewage pump (RSP) station from 330 million gallons per day (MGD) to 440 MGD at West Point Treatment Plant in Seattle by replacing the existing biogas driven engine pumps with higher capacity electric motor driven pumps. The project will also make seismic upgrades to the pump station and make improvements to meet National Fire Protection Association (NFPA 820) standards. In addition, the project will also replace the existing boiler system prior to completion of the RSP replacement to provide heat necessary to maintain a stable treatment process. This contract will also replace or refurbish failing grit classifiers, cyclones, and grit hopper gates and implement modifications to associated structural, mechanical, electrical, and process equipment related to the grit classifier, piping, and equipment. The grit classifier equipment removes heavy inorganic materials, such as sand, gravel, and minerals from the wastewater flow during preliminary treatment.

We are accepting bids until 4:00pm on Monday, 4/29. 

Engineers Estimate for this project is $128,000,000. 

Project site address is 1400 Discovery Park Blvd. Seattle WA 98199.

Link to the project documents:

24.04.30 King County Grit

Please reach out to Meghan McCarthy, mmccarthy@prospectconst.com or 253-446-1600 with any questions and please let us know if you are planning on bidding. Thank you!