I 90 EB over St. Regis River

Fair Condition46 years old3,724 vehicles/day

Location

StateMontana
CountyMineral
Location5.6m E De Borgia
CarriesI 90 EB
CrossesSt. Regis River
Coordinates47.32967, -115.25850

Condition Ratings

Overall ConditionFair
Deck5 (Fair)
Superstructure6 (Satisfactory)
Substructure5 (Fair)
Channel/Waterway8 (Very Good)
Scour Critical7 — Countermeasures installed

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length401.9 ft (122.5 m)
Max Span95.1 ft (29 m)
Deck Width42.0 ft (12.8 m)
Deck Area1,568 sq m
Main Spans4
Year Built1980 (reconstructed 2008)

Traffic

Avg Daily Traffic3,724 (2023)
Truck Traffic26%
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 NumberI00090024+06031

Nearby Bridges

RD 18720 over Ward Creek 0.2 mi Good I 90 EB over St. Regis River 0.2 mi Fair I 90 over Int Drexel 0.7 mi Fair I 90 EB over Int Drexel 0.7 mi Fair I 90 over St. Regis Rvr-local RD 1.2 mi Fair I 90 over St. Regis Rvr-local RD 1.4 mi Fair No Data Entered over ST Regis River 1.7 mi Good RD 889 over Ward Creek 1.8 mi Fair Mullan Gulch RD over Rock Creek 013 2.3 mi Fair No Data Entered over Henderson Creek 2.4 mi Poor