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Subcontractor Bid Invitation: Sewer System Improvements - City of Mattawa

Sewer System Improvements - City of Mattawa

Interwest Construction Inc. would appreciate receiving a bid from your firm for this project. We are an equal opportunity employer and request bids from all subcontractors including disadvantaged, minority, women, and disabled veterans and emerging small business enterprises. The project is subject to Department of Ecology DBE Utilization Requirements.

The work consists of, but is not limited to, the following: Furnish and install approximately 5,200 feet of 12-inch PVC sanitary sewer pipe by open cut methods including crossing SR 243, furnish and install approximately 220 feet of 20-inch steel water main casing crossing SR 243 by open cut methods, furnish and install 15 manholes, abandon existing lift station and salvage equipment to the City, provide television inspection of sewer mains and surface restoration of all disturbed surfaces. Engineer’s Estimate: $1,975,000

Plans and specifications: Gray & Osborne Inc Bid Documents

Please send quotes to bids@interwest.biz

Closing Date: 
Tuesday, September 16, 2025
Organization: 
Interwest Construction, Inc.
Point of Contact: 
Sarah Freeland