Demolition, site work, paving and new construction of a bridge / tunnel in Fairfield, Montana. Completed plans call for the demolition of a bridge / tunnel; for the construction of a bridge / tunnel; for site work for a bridge / tunnel; and for paving for a bridge / tunnel.

Project Description:FHWA, in cooperation with partner agencies, proposes to replace the existing single-lane structurally deficient bridge with a new bridge meeting current design and safety standards. The project would provide service continuity for a variety of federal, state, and local agencies, as well as residents, outfitters, law enforcement, and emergency responders. The existing Sun River Bridge is structurally deficient and functionally obsolete. Its poor condition and outdated design pose safety hazards and limitations to users. A new bridge is needed to provide a crossing over the Sun River that safely and reliably accommodates all users. Public Scoping Meeting: FHWA will host an open house meeting on Tuesday, May 16, 2023, from 3:30 to 5:30 PM at the Augusta Community Center, 132 Main Street, Augusta, MT, 59410 The Federal Highway Administration (FHWA) is developing a project to replace the Sun River Bridge in cooperation with the U.S. Bureau of Reclamation (USBR), U.S. Bureau of Land Management (USBLM), U.S. Forest Service (USFS), and Greenfields Irrigation District (GID). FHWA will serve as the lead agency in preparing the Sun River Bridge Replacement Environmental Assessment (EA). As an initial step, FHWA is conducting a scoping process to identify potential issues and concerns that could affect project evaluation or decision making. Project Location: The project is located 73 miles west of Great Falls, 19 miles west of Augusta, and 0.75 mile downstream from the GID Diversion Dam near Gibson Reservoir in Montana. The bridge crosses the Sun River and spans the boundaries of Lewis and Clark County and Teton County. Lead Agency and File Number: FHWA, file number MT FLAP BOR 2980(1)