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South Unit Scenic Loop Slide Repair

  • Owner
    Federal Highway Administration | Central Lands Division
  • Engineer
    Federal Highway Administration | Central Lands Division
  • Completion Date
    November 30, 2025
  • Contract Value
    $41,111,166
Highlights
  • 6 miles of roadway reconstruction
  • Construction of soldier pile walls with ground anchors and sculptured shotcrete
  • Subgrade lime stabilization across multiple locations
  • Replacement of all culverts, drop inlets, and curb and gutter
  • New aggregate base and asphalt concrete pavement
  • Concrete sidewalks, curbs, and pullouts added throughout the corridor
Summary

This project involved the reconstruction of six miles of the South Unit Scenic Loop Road within Theodore Roosevelt National Park. All work was performed within environmentally and culturally sensitive areas of the national park, requiring careful coordination, environmental compliance, and attention to detail to maintain the integrity of surrounding natural resources. 

Yellow Caterpillar excavator levels dirt on foggy hillside.
Curved concrete barrier on dry dirt path amid rocky hills.
Curving dirt road by hillside with barriers and equipment.
Drainage area with erosion matting, rocks, grassy slopes, trees.
Curved paved road in grassy valley, rocky hills, overlay text.
Workers and vehicles paint road lines on sunny rural morning.
Curving paved road in grassy hills, cloudy sky, yellow text overlays.
Curving highway crosses barren hills beneath partly cloudy sky.
Rural two-lane road with hills, trees, sky, and yellow text overlay.
Curved new road in grassy hills, erosion matting, yellow text overlay.
Curved paved road in hilly terrain, guardrail left; overcast sky.
White pickup by culvert on gravel road, hilly grassy area, overlays present.
Curved road with yellow lines in hilly forest, clear sky.
Dirt slope, tire tracks, wooden wall right, trees left, clear sky.
Construction site with crane, red truck, equipment, pipes on dirt road.
Snowy hills, tire tracks, scattered bushes, cloudy sky, low sun.