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JEFFERSON CITY, MO, FEB. 27, 2025 – Visitors traveling to Ha Ha Tonka State Park need to be aware a large highway project is starting Monday, March 3.

In Camden County, Route D through Ha Ha Tonka State Park will undergo various phases of construction continuing through June. Construction will close one lane of Route D between 6 a.m. and 6 p.m. Monday through Friday. Crews will construct shoulders on the first 4.75 miles south of U.S. Route 54 and shift the road away from the historic post office. This will improve safety through the park and around the building. After the shoulder work, the Missouri Department of Transportation will resurface Camden County Route D from U.S. Route 54 to Laclede County Route E.

Visitors should expect:

  • Heavy traffic delays. Plan for extra travel time.
  • Temporary closures of park trails and trailheads near construction zones.
  • Possible lane restrictions at times.

The Division of State Parks appreciates drivers’ patience as the Missouri Department of Transportation completes these essential improvements. Visitors are urged to drive carefully, follow posted signage and check for updates online at the state Park and Site Status Map at modnr.maps.arcgis.com/apps/webappviewer/index.html?id=0cc1b6513d6e407694aede7b7bdbde93 before visiting the park.

For more information on state parks and historic sites, visit mostateparks.com. Missouri State Parks is a division of the Missouri Department of Natural Resources.

Rock building and gazebo with flag pole flying American flag and Missouri flag. Flagpole in native flower garden. Trees surround building.

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