US 12 over Clearwater River;bnrr

Fair Condition75 years old21,000 vehicles/day

Location

StateIdaho
CountyNez Perce
LocationIn Lewiston
CarriesUS 12
CrossesClearwater River;bnrr
Coordinates46.41694, -117.00017

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure9 (Excellent)
Substructure6 (Satisfactory)
Channel/Waterway8 (Very Good)
Scour Critical3 — Scour critical

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1352.0 ft (412.1 m)
Max Span112.9 ft (34.4 m)
Deck Width79.4 ft (24.2 m)
Deck Area9972.8 sq m
Main Spans12
Year Built1951 (reconstructed 2024)

Traffic

Avg Daily Traffic21,000 (2023)
Truck Traffic9%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number000000000010375

Nearby Bridges