Montana Department of Transportation

Public Involvement

Underpass Ave - Billings

Underpass Ave - Billings

CM 1025(9); UPN 8669000

Project Overview

MDT has initiated a project to reconstruct the existing Underpass Avenue / State Avenue and the 6th Street West / Central Avenue intersections. This is a main traffic corridor in the south Billings area with traffic operations issues and safety concerns. The purpose of this project will be to reconstruct the intersections to improve capacity and operations, install an adequate drainage system to keep the underpass location from flooding, and provide additional pedestrian and bicycle accommodations while considering the urban nature of the area.

Over the past several years, MDT has examined options to address traffic conditions in this corridor and improve stormwater drainage issues. MDT is now designing a project that incorporates new traffic signals, storm drain, lighting, improved pedestrian and bicycle facilities, and upgraded signing to enhance these intersections, promote accessibility, and improve safety.

MDT is partially funding this project through the Congestion Mitigation and Air Quality Program, a flexible funding source to state and local governments for transportation projects and programs to help meet the requirements of the Clean Air Act. MDT has taken advantage of this flexibility by developing the Montana Air and Congestion Initiative (MACI) Program, which provides funding for projects and programs that reduce transportation-related emissions.