US Bridges

SMA7606:BOWN Way over Ridenbaugh Canal

Good

Ada County, Idaho · In Boise · Structure no. 000000000033410

Built
2004
21 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
5,400
2023 count
Owner
County
County Highway Agency

About this bridge

SMA7606:BOWN Way over Ridenbaugh Canal is a prestressed concrete box beam or girders - multiple carrying SMA7606:BOWN Way over Ridenbaugh Canal in Ada County, Idaho. It was built in 2004, so it is 21 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,400 vehicles a day, projected to reach 8,100 by 2042. The structure is 40 ft (12.2 m) long and 76 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSMA7606:BOWN Way
CrossesRidenbaugh Canal
LocationIn Boise
RouteCity Street 7606
CountyAda County
StateIdaho
Coordinates43.57325, -116.15578
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating61 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width76 ft (23.2 m)
Roadway width57 ft (17.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,400 (2023)
Projected traffic8,100 by 2042
Trucks0%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SMA7606:BOWN Way over Ridenbaugh Canal built?

It was built in 2004, making it 21 years old in 2025.

What condition is SMA7606:BOWN Way over Ridenbaugh Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does SMA7606:BOWN Way over Ridenbaugh Canal carry?

About 5,400 vehicles per day (2023 count).

How long is SMA7606:BOWN Way over Ridenbaugh Canal?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 76 ft wide.

Who owns SMA7606:BOWN Way over Ridenbaugh Canal?

It is owned by the County Highway Agency.