Area Of Expertise:
Transportation Engineering
OlsonRoadbridge image overlay
OlsonRoadbridge image overlay
Area Of Experience:
County

Butte County Bridge Designs

Interstate Engineering has been the Highway Engineer for Butte County, South Dakota for the past twenty plus years.  Interstate Engineering has completed the design process set forth the FHWA for replacement of secondary roadway bridges.  Interstate Engineering analyzed the existing structures then made recommendations for replacement structures based on hydraulic modeling and cost estimates. Interstate Engineering has designed twelve structures.  They have included bridges and box culverts.

  • No. Indian Creek – 2 Span 189 60 Single Span Concrete Double Tee Bridge
  • Big Creek – Double 10 x 8 Concrete Box Culvert
  • So. Indian Creek – Double 10 x 7 Concrete Box Culvert
  • Bismarck Bridge – 2 Span 189 Bulb Tee Bridge
  • Fruitdale Bridge – 5 Span 199 Continuous Concrete Bridge
  • Olson Road – 3 Span 242 Concrete Girder Bridge
  • Willow Creek Bridge-Single Span 83 Double Tee Bridge
  • Smiley Bridge – 3 Span 124 Continuous Concrete Bridge
  • Nine Mile Creek – 3 Span 89 Continuous Concrete Bridge
  • Horse Creek – 3 Span 127 Continuous Concrete Bridge
  • Indian Creek – 3 Span 77 Wood Deck Bridge
  • Kivimaki Bridge-Double 14×6 Box Culvert