IRR 117 ST over I029

Fair Condition44 years old16 vehicles/day

Location

StateSouth Dakota
CountyRoberts
Location2.0 N Sd 10 & I29 Interch
CarriesIRR 117 ST
CrossesI029
Coordinates45.68894, -96.96975

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Scour CriticalNot applicable

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length330.1 ft (100.6 m)
Max Span101.0 ft (30.8 m)
Deck Width34.8 ft (10.6 m)
Deck Area1066.4 sq m
Main Spans4
Year Built1982

Traffic

Avg Daily Traffic16 (2023)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last Inspection523
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000055124170

Nearby Bridges