Overview: Blaine County Road Department
The Road and Bridge Department is responsible for maintaining over 1200 miles of County roads and 62 bridges within Blaine County.
The Blaine County Commission uses tax dollars to maintain County roads and bridges with the funds available. The board of county commissioners, under the limitations and restrictions that are prescribed by law, may: (a) (i) lay out, maintain, control, and manage county roads and bridges within the county; (MCA Code 7-14-2101)
We Must Okay All Road Work
If it happens on a county right-of-way, we need to know about it, including:
Trim a tree
Road Usage Patterns
It is the Blaine County Commission’s goal to maintain the roads in Blaine County by prioritizing the roads by usage patterns. The following usage patterns are submitted to the public for their input.
High traffic or school bus route; regularly scheduled maintenance as time & funds allow
Medium traffic; regularly scheduled maintenance as time & funds allow
Low traffic; occasional maintenance as time & funds allow
Seasonal traffic; maintenance once per year
Not maintained, county retains ownership
Reporting a Dangerous Situation
To report a dangerous situation, such as a tree down across a road or a road inundated with water, please call us right away:
During Business Hours:
Road Maintenance at (406) 357-2840
During Off Hours:
Sheriff’s Office at (406) 357-3260
As our crews cannot monitor the entire road system simultaneously, we encourage citizens to report hazardous conditions whenever they are seen. This helps us respond to incidents as quickly as possible.
Types of Hazards
Fallen Trees & Power Poles
During high winds, trees and power poles can fall and obstruct the road. These obstructions can usually be removed within a few hours.
Some roads may flood during periods of high rainfall. In some cases, flooding cannot be removed, and the only option is to wait for excess water to flow away or dry up. However, these incidents should be reported so warnings can be posted. For up to date information check the Blaine County Road Department Facebook page.
Mud, Rocks & Landslides
Mud, rocks, and other debris can slide onto the roadway, especially during heavy storms, causing slippery and otherwise hazardous driving conditions. Please do not hesitate to report these hazards, as they can usually be cleared up within a few hours.
A “slipout” occurs when the road base becomes unstable, usually due to soil saturation during a rainstorm, and a section of pavement slips out and slides down the adjoining hillside. Slipout damage can be very severe and may require extensive construction to repair.
Road Department Contact Info
Phone: (406) 357-2840
Phone: (406) 353-2941
Phone: (406) 379-2271
Phone: (406) 379-2274
Find the Right Department
Blaine County Courthouse
420 Ohio St
Chinook, MT 59523
Mon-Fri: 8am - 5pm