I 90 over Int Logan

Fair Condition63 years old9,762 vehicles/day

Location

StateMontana
CountyGallatin
LocationLogan
CarriesI 90
CrossesInt Logan
Coordinates45.88187, -111.43804

Condition Ratings

Overall ConditionFair
Deck5 (Fair)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length143.0 ft (43.6 m)
Max Span49.9 ft (15.2 m)
Deck Width41.0 ft (12.5 m)
Deck Area545 sq m
Main Spans3
Year Built1963

Traffic

Avg Daily Traffic9,762 (2023)
Truck Traffic12%
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 NumberI00090283+02651

Nearby Bridges

I 90 over Int Logan 0.0 mi Good Frontage Rd-s 205 over Rr 0.2 mi Fair Logan Trident RD over Gallatin River 008 0.4 mi Fair I 90 over Madison Road 2.8 mi Fair I 90 over Madison Road 2.8 mi Fair Frontage Rd-s 205 over Drainage 3.1 mi Fair I 90 over Madison River Overflow 3.1 mi Fair I 90 over Madison River Overflow 3.1 mi Fair I 90 over Darlington Ditch 3.6 mi Fair I 90 over Darlington Ditch 3.7 mi Fair