Drainage and Bioswale Construction

This contract involves the installation of a drainage ditch utilizing an engineered soil mixture designed to achieve a minimum infiltration rate of 3.0 inches per hour. The project scope may also incorporate bioswale elements, which are intended to enhance stormwater management by naturally filtering and controlling runoff. The work aligns with the NAICS code 237310, indicating it falls under the category of highway, street, and bridge construction. Issued by Spokane County in Washington, the contract is a subcontract opportunity with a response deadline set for June 24, 2026. Although some specifics like the exact location and point of contact are not provided, the solicitation is publicly accessible via an online procurement platform, allowing interested parties to view further details and submit bids accordingly. This initiative supports sustainable stormwater control infrastructure by integrating engineered environmental solutions.