Road Closure 5th St S - 9th Ave S to 10th Ave S Beginning August 4th, 2025

DATE: August 4, 2025
CONTACT: Ryan Shaneybrook, Civil Engineer – 406-771-1258

ROAD CLOSURE - 5 TH ST S/9TH TO 10TH AVE S

Great Falls, Montana – The City of Great Falls has contracted with Boland Construction to install new storm drain pipes and inlets along 5th Street South between 9th Avenue South and 11th Alley South. Beginning Monday, August 4, 2025, 5th Street South will be closed from 9th Avenue South to 10th Avenue South for several weeks.

The storm drain project is expected to take approximately three months to complete. Construction will take place in three phases: 

• Phase 1 (Beginning Monday, August 4) – 5th Street South will be closed from 9th Avenue South to 10th Avenue South for several weeks.
• Phase 2 – While the contractor bores under 10th Avenue South, 5th Street South will be closed on both the north and south sides of 10th Avenue South.
• Phase 3 – 5th Street South will be closed from 10th Avenue South to 11th Alley South.

Traffic impacts will be minimal. General vehicle traffic on 10th Avenue South will remain open except for the north lane of westbound traffic, which will be closed during Phases 2 and 3. Temporary traffic controls will be in place to guide drivers and ensure safety for both motorists and pedestrians. Travelers are encouraged to slow down and use caution in the work zone. For more information, please contact Ryan Shaneybrook with the City of Great Falls at (406) 771-1258

(end)