I 90 EB over St. Regis River

Fair Condition45 years old4,056 vehicles/day

Location

StateMontana
CountyMineral
Location1.9m W St. Regis
CarriesI 90 EB
CrossesSt. Regis River
Coordinates47.29690, -115.13839

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Channel/Waterway8 (Very Good)
Scour Critical7 — Countermeasures installed

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length212.3 ft (64.7 m)
Max Span106.0 ft (32.3 m)
Deck Width44.6 ft (13.6 m)
Deck Area879.9 sq m
Main Spans2
Year Built1981

Traffic

Avg Daily Traffic4,056 (2023)
Truck Traffic24%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00090031+04741

Nearby Bridges

Little Joe CR RD over ST Regis River 027 0.7 mi Good Little Joe CR RD over Sep I 90 005 0.8 mi Good I 90 over St. Regis River 0.9 mi Good I 90 over St. Regis Rvr-int Ramp 1.2 mi Fair I 90 over Int Two Mile-st Regis R 1.2 mi Fair I 90 over Int Two Mile-st Regis R 1.2 mi Fair RD 431 over ST Regis River 1.5 mi Fair I 90 over Drainage 1.6 mi Good RD 431 over Twomile Creek 1.6 mi Fair I 90 over Int St. Regis 1.8 mi Fair