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  5. ›City of Caldwell WAS Thickening Improvements DAFT Building…

City of Caldwell·Idaho

City of Caldwell WAS Thickening Improvements DAFT Building Construction

Closes 6/2/2026$5M – $15MInvitation for Bid
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Description

The City of Caldwell, Idaho is seeking bids for the construction of a DAFT (Dissolved Air Flotation) building and improvements to the wastewater treatment plant. The project includes the construction of a new DAFT tank, yard improvements, and upgrades to the existing treatment system. The project is expected to be completed by June 19, 2027. The scope of work includes demolition, excavation, foundations, tank installation, yard improvements, and building enclosure work. The contractor will be responsible for furnishing all materials, equipment, labor, taxes, permits, and other necessary items to complete the project. • The project involves the construction of a new DAFT tank and upgrades to the existing treatment system. • The contractor will be responsible for furnishing all materials, equipment, labor, taxes, permits, and other necessary items to complete the project. • The project is expected to be completed by June 19, 2027. • The scope of work includes demolition, excavation, foundations, tank installation, yard improvements, and building enclosure work. • The contractor must have a valid Idaho Public Works License and include the number on their bid form. • The contractor must provide a bid bond, certified check, or cashier's check in the amount of 5% of the total bid.

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Alex Schoonen(Wastewater Engineer)

[email protected]

(208) 649-7554

Key dates

Opened
4/22/2026
Questions due
5/18/2026
Pre-bid meeting
5/6/2026
Closes
6/2/2026
Duration
395 days

Last updated

Details

Type
Invitation for Bid
Industry
Construction
NAICS
237110

Budget estimate

$5,000,000 – $15,000,000

Based on the project description, the estimated budget for this project is between $5 million and $15 million. This estimate is based on the scope of work, which includes the construction of a new DAFT tank, yard improvements, and upgrades to the existing treatment system. The cost of materials, labor, and equipment necessary to complete the project will likely be significant, and the contractor will need to have the necessary expertise and resources to complete the project on time and within budget. Factors that may influence the likely payment range include the complexity of the project, the experience and qualifications of the contractor, and the availability of materials and labor.

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