Twin Butte Road over Grand River

Good Condition36 years old20 vehicles/day

Location

StateSouth Dakota
CountyCorson
Location9e & 18s Thunder Hawk
CarriesTwin Butte Road
CrossesGrand River
Coordinates45.68350, -101.80441

Condition Ratings

Overall ConditionGood
Channel/Waterway4 (Poor)
Culvert7 (Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length140.1 ft (42.7 m)
Max Span50.9 ft (15.5 m)
Deck Width40.0 ft (12.2 m)
Deck Area520.9 sq m
Main Spans13
Year Built1990

Traffic

Avg Daily Traffic20 (2022)
Lanes On Bridge2

Inspection & Ownership

Last Inspection624
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000016098185