US 20 Wbl & Ebl over Boise River

Fair Condition36 years old37,500 vehicles/day

Location

StateIdaho
CountyAda
LocationIn Boise;boise Connector
CarriesUS 20 Wbl & Ebl
CrossesBoise River
Coordinates43.61839, -116.22900

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway6 (Satisfactory)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length597.1 ft (182 m)
Max Span162.1 ft (49.4 m)
Deck Width123.0 ft (37.5 m)
Deck Area6,825 sq m
Main Spans4
Year Built1990

Traffic

Avg Daily Traffic37,500 (2023)
Truck Traffic4%
Lanes On Bridge7

Inspection & Ownership

Last Inspection221
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number000000000012263

Nearby Bridges