The Great American Outdoors Act is going to make the needed replacement of the Lewis River Bridge, 10 miles north of Yellowstone’s South Entrance, possible.
Hundreds of thousands of vehicles travel across this 604-linear-foot bridge every year, so it’s seen its fair share of use since its original construction in 1960.
Based on recent assessments of the bridge, a total replacement was determined to be the best course of action to address the widespread deterioration. This will reduce maintenance costs in the future and provide safer conditions for the public and employees traveling to and from the South Entrance for many years to come.
The replacement will be built on a new alignment directly east of the existing bridge. Parking and pedestrian areas located north and south of the existing bridge will be redesigned and reconstructed.
When the proposed project is implemented, construction delays would normally be limited to 30 minutes. There may be up to six temporary road closures of up to six hours each to set bridge girders.
The Lewis River Falls Overlook Trail and parking areas would be closed during construction.