US 20 over Anderson Canal

Fair Condition56 years old27,000 vehicles/day

Location

StateIdaho
CountyBonneville
Location3.8 N. Idaho Falls
CarriesUS 20
CrossesAnderson Canal
Coordinates43.55658, -111.99269

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway7 (Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length24.0 ft (7.3 m)
Max Span24.0 ft (7.3 m)
Deck Width107.0 ft (32.6 m)
Deck Area238.0 sq m
Main Spans1
Year Built1970

Traffic

Avg Daily Traffic27,000 (2023)
Truck Traffic9%
Lanes On Bridge4

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number000000000012380

Nearby Bridges