Nhs 7183;9th ST over Boise River

Fair Condition39 years old15,500 vehicles/day

Location

StateIdaho
CountyAda
LocationIn Boise;s. 9th Street
CarriesNhs 7183;9th ST
CrossesBoise River
Coordinates43.60900, -116.20958

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialSteel Continuous
DesignBox Beam - Multiple
Total Length311.0 ft (94.8 m)
Max Span145.0 ft (44.2 m)
Deck Width64.3 ft (19.6 m)
Deck Area1858.1 sq m
Main Spans2
Year Built1987

Traffic

Avg Daily Traffic15,500 (2023)
Truck Traffic2%
Lanes On Bridge4

Inspection & Ownership

Last InspectionNovember 2021
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number000000000021655

Nearby Bridges

Nhs 7553;capitol over Boise River 0.1 mi Fair Sma 9793; Main ST over Boise Vrt Center 0.6 mi Good US 20 Wbl over Americana Blvd;15th St. 0.7 mi Fair US 20 Ebl over Americana Blvd;15th St. 0.7 mi Fair Shoshone Street over Ridenbaugh Canal 0.7 mi Good Nhs 7433;vista AVE over Ridenbaugh Canal 0.7 mi Fair Stp 7363;americana over Boise River 0.8 mi Fair Sma 7363;americana over Settlers Canal 0.8 mi Good Sma7553;federal Wy over Ridenbaugh Canal 0.8 mi Fair Alpine Steet over Elec Lght Switch Lateral 0.9 mi Fair