Site work for a bridge / tunnel in Saint Charles, Minnesota. Working plans call for site work for a bridge / tunnel.

A Minnesota Department of Transportation contractor will replace two culverts on Hwy 74 that cross the highway. Detours will be required. One culvert will be replaced at a time. Traffic impacts Traffic will be detoured. North culvert: The detour route into the park when the north culvert is being replaced will be Winona Co Rd 39 /Olmsted Co Rd 2 west to Olmsted County Road 10 south to Olmsted Co Rd 9/Winona Co Rd 22 east to Hwy 74 north. Travelers from the south on Hwy 74 will be able to reach most of the park but not travel through to Elba. South culvert: The detour route into the park when the south culvert is being replaced will depend on your destination on Hwy 74. If you are traveling to the town of Elba or activities north of the park or the park visitor center, RV sanitation station, Cedar Hill Campground, or the Minneiska Campground, you will travel west on Winona Co Rd 22/Olmsted Co Rd 9 to Olmsted Co Rd 10 north to Olmsted Co Rd 2/ Winona Co Rd 39 east to Hwy 74 south. If your destination is the North and South picnic areas, gift shop, or Gooseberry Glen, you will approach from the south on Highway 74. The project is included in the State's 2026-2030 Capital Improvement Program (CIP). As of January 23, 2026, construction starts July 2026. *Project information has been obtained through a public capital improvement plan (CIP). A CIP is a financial schedule for short- and long-range projects which is updated regularly. Information listed in the CIP often evolves based on funding availability and the project details, including timeline and value, are subject to change. The content management team will continue to pursue additional details as they become available.