Underpass Avenue logo

Traffic Control Update: The State Avenue and Underpass Avenue intersection is closed for several weeks while the intersection is resurfaced. As a result:

  • The 6th Street underpass is closed. Those traveling south from Central Avenue may use Moore Lane as an alternate railroad crossing.
  • Emergency personnel are advised to use the Montana Avenue overpass to bypass the project area.
  • State Avenue between Orchard Lane and Laurel Road (just past South Billings Boulevard) is closed.
  • Underpass Avenue between State Avenue and Calhoun Lane is closed.
  • Billings MET Transit has rerouted two buses that typically stop in this area (see below for details).

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

Underpass Avenue - Billings Project Map

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.
Riverside logo

UPN 8669001