US Bridges

Nhs 7433;VISTA Ave over Ridenbaugh Canal

Fair

Ada County, Idaho · In Boise;vista Ave. · Structure no. 000000000021600

Built
1947
78 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Concrete
Length
37 ft
1 main span
Daily traffic
20,000
2023 count
Owner
County
County Highway Agency

About this bridge

Nhs 7433;VISTA Ave over Ridenbaugh Canal is a concrete tee beam carrying Nhs 7433;VISTA Ave over Ridenbaugh Canal in Ada County, Idaho. It was built in 1947, so it is 78 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 20,000 vehicles a day, roughly 2% of them trucks, projected to reach 30,000 by 2042. The structure is 37 ft (11.3 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNhs 7433;VISTA Ave
CrossesRidenbaugh Canal
LocationIn Boise;vista Ave.
RouteCounty Highway 7433
CountyAda County
StateIdaho
Coordinates43.59872, -116.21367
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length37 ft (11.3 m)
Longest span35 ft (10.7 m)
Deck width79 ft (24.2 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,000 (2023)
Projected traffic30,000 by 2042
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$906,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nhs 7433;VISTA Ave over Ridenbaugh Canal built?

It was built in 1947, making it 78 years old in 2025.

What condition is Nhs 7433;VISTA Ave over Ridenbaugh Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2023.

How much traffic does Nhs 7433;VISTA Ave over Ridenbaugh Canal carry?

About 20,000 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Nhs 7433;VISTA Ave over Ridenbaugh Canal?

The structure is 37 ft (11.3 m) long with a longest span of 35 ft (10.7 m) and a deck 79 ft wide.

Who owns Nhs 7433;VISTA Ave over Ridenbaugh Canal?

It is owned by the County Highway Agency.