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  5. ›Kalispell Stormwater Decant Facility Project

City of Kalispell·Montana

Kalispell Stormwater Decant Facility Project

Closes 2/19/2026$500k – $2MInvitation for Bid
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Description

The City of Kalispell, Montana is seeking bids for the Kalispell Stormwater Decant Facility Project. The project involves the construction of a four-bay, cast-in-place concrete stormwater decant facility, earthwork, site grading, foundation preparation, and grading of a stormwater retention pond. The project also includes the installation of 6-inch water and flushing hydrants, 12-inch storm piping and new stormwater manholes, stormwater treatment equipment, and a new 100 amp electrical service. • Construction of a four-bay, cast-in-place concrete stormwater decant facility • Earthwork, site grading, foundation preparation, and grading of a stormwater retention pond • Installation of 6-inch water and flushing hydrants • Installation of 12-inch storm piping and new stormwater manholes • Installation of stormwater treatment equipment • Installation of a new 100 amp electrical service

Attached files

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

Contact

(406) 758-7720

Key dates

Opened
1/18/2026
Pre-bid meeting
2/11/2026
Closes
2/19/2026

Last updated

Details

Type
Invitation for Bid
Industry
Civil Engineering
NAICS
237110

Budget estimate

$500,000 – $2,000,000

The budget for this project can be estimated based on the scope of work, which includes the construction of a stormwater decant facility, earthwork, and installation of stormwater treatment equipment. The cost of such a project can range from a few hundred thousand dollars to several million dollars, depending on the complexity and size of the project. Given the information provided, a rough estimate for the budget could be between $500,000 and $2,000,000.

AI estimate from the solicitation

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