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October 2025

The Montana Department of Transportation (MDT) starts construction on the North of Stevensville – North, Eastside Highway (Secondary 203) project in the summer of 2026. The work zone begins four miles north of Stevensville, near Wildfowl/Moiese Lane, and ends just south of Hidden Valley Road. Roadwork is anticipated to take place for two construction seasons (2026 and 2027).

MDT encourages the public to reach out to Becca at beccaXYZbigskypublicrelationsABCcom or stop by the pop-up booth event on Wednesday, October 22 from 10 a.m. to 12 p.m. in front of Super 1 Foods (39 Stevensville Cutoff Road IW Stevensville) with any questions or to learn more about the project. All information and materials will also be available online.

Reconstruction of this section of highway will include widening the roadway from 24 feet to 44 feet, consisting of two 12-foot travel lanes, a 12-foot center two-way left-turn lane, and four-foot shoulders. Additional improvements include flattening of roadside slopes to improve safety and upgrading drainage features. Sharp horizontal curves will be replaced with a large radius curve at Rathbun Lane and with a four-legged roundabout at Ambrose Creek Road.

The purpose of the North of Stevensville-North project is to enhance safety for drivers, improve traffic operations and extend the longevity of the roadway for years to come.

Those who would like more information are encouraged to email Becca at beccaXYZbigskypublicrelationsABCcom or call (406) 207-4484 Monday through Friday between 9 a.m. and 5 p.m.

Project Overview

STPS 203-1(15)4
North of Stevensville - North
UPN 6138000

The project is located on Secondary-203 (Eastside Highway) and begins at Reference Post (RP) 4.0, about 3.7 miles north of Stevensville, and about 0.1 miles south of Wildfowl Lane and Moiese Lane. It extends northerly 5.8 miles to RP 10.1, about 0.2 miles south of Hidden Valley Road. This project will tie to the Florence – East project that was constructed in 2014.

The project will reconstruct the road to a 44-ft. top width that will provide two 12-foot travel lanes, a 12-foot center/left turn lane, and two 4-foot shoulders. Roadside slopes and ditches will be revised to improve safety and the vertical alignment and drainage features will be upgraded throughout the project. The existing 90° horizontal curves at Rathbun Lane and Ambrose Creek Road will be replaced with a large radius curve at Rathbun Lane, and a 4-legged roundabout at Ambrose Creek Road. A graded platform for a future shared use path will not be included.

The project will require extensive right-of-way acquisition and utility relocation.

North of Stevensville - North project map