
Please Note: All work is dependent on weather conditions and other unforeseen factors.
Traffic Control Update:
- Beginning on Friday, November 17, the intersections of Central Avenue with 6th Street West intersection and State Avenue with Underpass Avenue will be temporarily closed for milling and paving which will occur over the weekend and through Monday, November 20. The intersections are anticipated to reopen by Tuesday morning, November 21.
- The 6th Street West underpass is anticipated to reopen to single-lane traffic in each direction before Thanksgiving next week.
Crews installing curb and gutter on the northwest corner of the Central Avenue with 6th Street West intersection.
Project Overview
Construction is underway and will continue through the summer on the Underpass Avenue – Billings project. The Montana Department of Transportation (MDT) is partnering with Riverside Contracting Inc. to reconstruct the Underpass Avenue and State Avenue intersection and the 6th Street West and Central Avenue intersection. This project will improve traffic operations in the south-central Billings area by incorporating new traffic signals, a new storm drain, lighting upgrades, improved pedestrian facilities, and upgraded signage.
Construction camera: View real-time images of current traffic conditions
Project Objectives
Underpass Avenue and State Avenue Intersection Improvements:
- Dual southbound left turn lanes from 6th Street West.
- Additional lanes on Underpass Avenue.
- Additional pedestrian improvements.
- Relocated pump house and new storm drain inlets.
- New traffic signal and lighting.
- Lighting under the Montana Rail Link (MRL) bridge for pedestrians and bicyclists.
6th Street West and Central Avenue Intersection Improvements:
- Dual northbound left turn lanes from 6th Street West.
- New traffic signal and lighting.
- Additional pedestrian improvements.
Other Project Improvements:
- Detention ponds for stormwater.
- Full lane from Laurel Road westbound ramp to Moore Lane.
- Connection to recent City of Billings project at Calhoun Lane.
- Preservation of recent community murals in the underpass.

UPN 8669001