SH-57 runs from U.S. Route 2 (US 2) in Priest River north to the end of state maintenance in Nordman.

The highway heads north as 9th Street through a mixed business and residential area and passes Priest River Municipal Airport and Priest River Lamanna High School.

When the river turns eastward, the highway curves northward and passes an intersection with McAbee Falls Road.

The road heads northwest on a winding path before turning north again to follow Moores Creek through the Kaniksu National Forest.

After passing the Priest Lake USFS Airport, the road heads north toward Nordman.