Highway 74 Whitewater State Park

Motorists traveling on Highway 74 entering Whitewater State Park from the north will encounter a detour as crews replace a box culvert on the north side of the park, according to the Minnesota Department of Transportation.

There will be a detour for travelers coming from the north side of the park, and those traveling on Highway 74 to destinations north of the park during the north box culvert replacement.

Motorists north of Whitewater State Park should go west on Winona County Road 39/Olmsted County Road 2, go south on Olmsted County Road 10, and then east on Olmsted County Road 9/Winona County Road 22, which intersects with Highway 74.

Motorists south of the work zone can use the above detour route in reverse. Travelers from the south will still be able to reach most of the park but will be unable to travel through to Elba during the north box culvert replacement.

According to the Plainview News, this north box culvert replacement is part of a larger two-year project.

Once the culvert is finished, a second culvert on the south side of the park will be replaced and a detour will occur.

It is anticipated that the project will be completed by June 2027.

Work will progress through Oct. 18, 2026, and will resume in the spring of 2027.