Missoula Closed 6th Street for Water Main Repairs

The city has shut down a section of 6th Street to facilitate essential utility infrastructure upgrades.

Updated on Sept. 22, 2026 in Utilities

An open construction trench in an asphalt city street reveals utility pipes, with piles of excavated earth surrounding the work site. — The city of Missoula has closed 6th Street between Hazel Street South and South Higgins Avenue to allow crews to complete essential water main infrastructure upgrades. AI Illustration. Upload story photo >

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City officials in Missoula have implemented a full closure of 6th Street to accommodate the replacement of aging water mains. The closure, which spans the area between Hazel Street South and South Higgins Avenue, is currently in effect for all traffic.

Why it matters

Updating municipal water infrastructure is vital for preventing service disruptions and ensuring long-term utility reliability for the community. These proactive measures help maintain critical city systems and prevent emergency repairs that could cause more significant delays.

The project involves replacing aging water mains along a specific corridor of 6th Street between Hazel Street South and South Higgins Avenue. The infrastructure work is scheduled to proceed continuously through October 1.

The players

City of Missoula

The local municipal government is responsible for managing city infrastructure projects and public utility maintenance.

The details

Crews are actively working on site to remove and install modernized water main components. While 6th Street is blocked to through traffic, South Higgins Avenue remains open, and residents and businesses continue to have access to their properties via alleys.

The 6th Street closure began on September 22, 2026.
The road closure is expected to conclude on October 1, 2026.

Market Landscape

This project mirrors a national trend of local municipalities prioritizing the modernization of aging underground water systems to ensure future utility reliability. It highlights the ongoing operational challenge of upgrading infrastructure while maintaining access for local businesses and residents.

Commuters should plan for detours when traveling near 6th Street and Hazel Street South until the project concludes. Residents and business owners in the area will maintain access to their properties through alleyways for the duration of the work.

The takeaway

Drivers are advised to utilize alternate routes early to avoid congestion near the construction zone. Local business patrons should use designated alley access points for entry while the water main replacement project continues through early October.