Closed bids

Closed Iowa Water and Wastewater Bids & RFPs

Closed in the last 30 days
2
Closed this year
19
Closed bids on record
23
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Bid Banana holds 23 closed Iowa water and wastewater solicitations. These are the 23 that closed most recently. In the last 12 months, the most Iowa water and wastewater bids closed in July 2026 (5); the agencies behind the most of the 23 most recent were City of Ames, Iowa Department of Administrative Services and City of Dubuque.

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  • Iowa Department of Transportation·Iowa

    Tama Brine Building Water Line Extension.
    Closed 6/24/2026Invitation for BidWater Management and Sanitation

    The Iowa DOT is seeking competitive bids to install a new 6‑inch water main and associated infrastructure linking the City of Tama water…

  • City of Des Moines - Iowa·Iowa

    WRA Polk City South Pump Station Rehabilitation
    Closed 6/23/2026Invitation for BidWater Management and SanitationLogin required

    The Des Moines Metropolitan Wastewater Reclamation Authority is seeking qualified contractors to rehabilitate the Polk City South Pump…

  • Iowa Economic Development Authority·Iowa

    32740 - CDBG Water/Sewer/Storm Water
    Closed 5/22/2026Grants NoticeWater Management and Sanitation

    The Iowa Economic Development Authority is offering up to $500,000 per community in Community Development Block Grant (CDBG) funding for…

  • Iowa Department of Transportation·Iowa

    Trailered Sewer Vacuum, 800 Gallon
    Closed 5/11/2026Invitation for BidWater Management and Sanitation

    The Iowa Department of Transportation is seeking competitive sealed bids for a trailer‑mounted 800‑gallon sewer vacuum system, including the…

  • Iowa State University·Iowa

    Water Filter Replacement
    Closed 3/31/2026Request for ProposalWater Management and Sanitation

    Iowa State University of Science and Technology (ISU) is soliciting proposals from qualified contractors to provide water filter replacement…

  • City of Dubuque·Iowa

    2025 SODIUM HYPOCHLORITE
    Closed 11/20/2025Invitation for BidWater Management and Sanitation

    The City of Dubuque Water Department is requesting bids for the purchase and delivery of Sodium Hypochlorite. The initial term of the…

  • Iowa Department of Natural Resources·Iowa

    Aluminum Sulfate Treatment for Iowa Lakes
    Closed 7/28/2025Invitation for BidWater Management and Sanitation

    The Iowa Department of Natural Resources is seeking bids for the aluminum sulfate treatment of Lake of Three Fires, Green Valley Lake, and…

  • City of Dubuque·Iowa

    FY2026 HYDROFLUOROSILICIC ACID
    Closed 7/9/2025Invitation for BidWater Management and Sanitation

    The City of Dubuque Water Department is requesting sealed bids for the purchase and delivery of Hydrofluorosilicic Acid for fiscal year…

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