IRR - I 90 over Sarpy Road-s 384

Fair Condition55 years old4,258 vehicles/day

Location

StateMontana
CountyBig Horn
Location1.2m E Hardin
CarriesIRR - I 90
CrossesSarpy Road-s 384
Coordinates45.73103, -107.56308

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length120.1 ft (36.6 m)
Max Span46.9 ft (14.3 m)
Deck Width44.3 ft (13.5 m)
Deck Area494.1 sq m
Main Spans3
Year Built1971

Traffic

Avg Daily Traffic4,258 (2023)
Truck Traffic18%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last Inspection724
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00090498+07332

Nearby Bridges

IRR - I 90 over Sarpy Road-s 384 0.0 mi Fair I 90 over Irrigation Canal 0.3 mi Fair Sarpy Creek RD over Little Bighorn River 0.4 mi Fair IRR - I 90 over Bighorn River 0.6 mi Fair IRR - I 90 over Bighorn River 0.7 mi Good I 90 Frontage RD over Bighorn River 0.7 mi Fair Irr-s 47-3rd ST E over Int E Hardin I 90 1.1 mi Fair IRR - I 90 over Rr (not In Use) 2.0 mi Fair IRR - I 90 over Rr (not In Use) 2.1 mi Fair Irr-s 47 over Int W Hardin I 90 2.6 mi Fair