US 20 over Phyllis Canal

Good Condition3 years old19,500 vehicles/day

Location

StateIdaho
CountyAda
Location9.6 E. Caldwell
CarriesUS 20
CrossesPhyllis Canal
Coordinates43.66306, -116.49636

Condition Ratings

Overall ConditionGood
Deck9 (Excellent)
Superstructure9 (Excellent)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length46.6 ft (14.2 m)
Max Span44.3 ft (13.5 m)
Deck Width188.0 ft (57.3 m)
Deck Area813.7 sq m
Main Spans1
Year Built2023

Traffic

Avg Daily Traffic19,500 (2023)
Truck Traffic6%
Lanes On Bridge3

Inspection & Ownership

Last Inspection624
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number000000000012256

Nearby Bridges