IRR - Frontage 325 over Little Bighorn River 075

Fair Condition50 years old100 vehicles/day

Location

StateMontana
CountyBig Horn
Location2m S Crow Agency
CarriesIRR - Frontage 325
CrossesLittle Bighorn River 075
Coordinates45.56848, -107.45169

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Channel/Waterway6 (Satisfactory)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length163.1 ft (49.7 m)
Max Span80.7 ft (24.6 m)
Deck Width34.1 ft (10.4 m)
Deck Area516.9 sq m
Main Spans2
Year Built1976

Traffic

Avg Daily Traffic100 (2025)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last Inspection824
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberL02325000+09001

Nearby Bridges

IRR - I 90 over Little Bighorn River 0.0 mi Fair IRR - I 90 over Little Bighorn River 0.0 mi Fair IRR - Frontage 315 over Little Bighorn River 002 0.0 mi Fair IRR - US 212 over Int Custer Batlfld I 90 0.7 mi Fair IRR BIA RTE 14 over Big Shoulder Creek 1.5 mi Fair IRR - I 90 over Little Bighorn River 2.0 mi Fair IRR - I 90 over Little Bighorn River 2.0 mi Fair Bala ST over Little Bighorn River 069 2.0 mi Fair Battlefield Road over Deep Coulee 2.2 mi Fair IRR - I 90 over Int Crow Agency 2.3 mi Fair