I 15 over Sep Park Street

Fair Condition43 years old2,636 vehicles/day

Location

StateMontana
CountyBeaverhead
LocationDillon
CarriesI 15
CrossesSep Park Street
Coordinates45.21842, -112.64626

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length184.4 ft (56.2 m)
Max Span74.5 ft (22.7 m)
Deck Width44.6 ft (13.6 m)
Deck Area764.3 sq m
Main Spans3
Year Built1983

Traffic

Avg Daily Traffic2,636 (2023)
Truck Traffic25%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00015063+04942

Nearby Bridges

I 15 over Sep Park Street 0.0 mi Fair E Reeder Street over Blacktail Deer Creek 131 0.3 mi Good S Railroad Avenue over Blacktail Deer Creek 130 0.3 mi Good S 89 over Int North Dillon I 15 0.5 mi Fair Cliff RD over West Bench Canal 028 0.5 mi Good W Park ST over Beaverhead River 005 0.7 mi Good I 15 over Beaverhead River 0.8 mi Good I 15 over Beaverhead River 0.8 mi Good S 89 over Int South Dillon I 15 0.9 mi Fair S 89 over Rr 0.9 mi Fair