US 30 over Portneuf River

Good Condition15 years old5,700 vehicles/day

Location

StateIdaho
CountyBannock
Location6.8 W. Lava Hot Springs
CarriesUS 30
CrossesPortneuf River
Coordinates42.63075, -112.13639

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure8 (Very Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length346.1 ft (105.5 m)
Max Span123.0 ft (37.5 m)
Deck Width82.0 ft (25 m)
Deck Area2637.5 sq m
Main Spans3
Year Built2011

Traffic

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

Inspection & Ownership

Last InspectionOctober 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number000000000013702

Nearby Bridges