IRR - S 313 over Overflow Ditch

Fair Condition38 years old899 vehicles/day

Location

StateMontana
CountyBig Horn
Location7m SW Hardin
CarriesIRR - S 313
CrossesOverflow Ditch
Coordinates45.64777, -107.65715

Condition Ratings

Overall ConditionFair
Channel/Waterway7 (Good)
Culvert6 (Satisfactory)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length25.9 ft (7.9 m)
Max Span13.1 ft (4 m)
Deck Area95.6 sq m
Main Spans2
Year Built1988

Traffic

Avg Daily Traffic899 (2023)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last Inspection824
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberS00313008+00411

Nearby Bridges