US 30 over Portneuf River

Good Condition18 years old5,700 vehicles/day

Location

StateIdaho
CountyBannock
Location1.9 W. Lava Hot Springs
CarriesUS 30
CrossesPortneuf River
Coordinates42.61961, -112.04622

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure8 (Very Good)
Substructure8 (Very Good)
Channel/Waterway9 (Excellent)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length181.1 ft (55.2 m)
Max Span105.0 ft (32 m)
Deck Width82.0 ft (25 m)
Deck Area1,380 sq m
Main Spans2
Year Built2008

Traffic

Avg Daily Traffic5,700 (2023)
Truck Traffic24%
Lanes On Bridge4

Inspection & Ownership

Last Inspection722
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number000000000013711

Nearby Bridges