I 90 over I 90b;canyon CR

Fair Condition35 years old11,000 vehicles/day

Location

StateIdaho
CountyShoshone
LocationIn Wallace
CarriesI 90
CrossesI 90b;canyon CR
Coordinates47.47561, -115.92869

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway8 (Very Good)
Scour Critical9 — Foundation above flood level

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Single/Spread
Total Length4478.0 ft (1364.9 m)
Max Span149.9 ft (45.7 m)
Deck Width83.7 ft (25.5 m)
Deck Area34804.9 sq m
Main Spans34
Year Built1991

Traffic

Avg Daily Traffic11,000 (2023)
Truck Traffic31%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number000000000017247

Nearby Bridges

I 90b over Placer Creek 0.1 mi Fair I 90b Loop over South Fork Cda River 0.2 mi Fair Stc5758;6th Street over S.fk. Cda River;6th St. 0.3 mi Good I 90 Ebl & Wbl over Crossroad Bd;w.wallace I 0.3 mi Fair I 90 over S.fk.coeur Dalene River 0.4 mi Fair Seventh Street over Residence Street;viaduct 0.4 mi Fair North Frontage RD over South Fork Cda River 0.5 mi Fair I 90 Ramp EB Off over I90r.ab;i90b;s.f.cda Rvr 0.5 mi Fair I 90b over S.fk.cda R;i-90b Arch 0.5 mi Poor I 90ramp WB On over Bike/ped Underpass 0.5 mi Fair