US Bridges

Stoddard Road over Ridenbaugh Canal

Good

Ada County, Idaho · 2.2 S. 0.6 W. Meridian · Structure no. 000000000025755

Built
1968
57 years old, rebuilt 2007
Condition
Good
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
23 ft
1 main span
Daily traffic
4,100
2023 count
Owner
County
County Highway Agency

About this bridge

Stoddard Road over Ridenbaugh Canal is a prestressed concrete tee beam carrying Stoddard Road over Ridenbaugh Canal in Ada County, Idaho. It was built in 1968 and reconstructed in 2007, so it is 57 years old, older 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 4,100 vehicles a day, roughly 3% of them trucks, projected to reach 6,150 by 2042. The structure is 23 ft (7 m) long and 50 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesStoddard Road
CrossesRidenbaugh Canal
Location2.2 S. 0.6 W. Meridian
RouteCounty Highway 0
StateIdaho
Coordinates43.57728, -116.40378
Functional classUrban Collector

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 protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span22 ft (6.7 m)
Deck width50 ft (15.2 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,100 (2023)
Projected traffic6,150 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Stoddard Road over Ridenbaugh Canal built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2007.

What condition is Stoddard Road 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 October 2023.

How much traffic does Stoddard Road over Ridenbaugh Canal carry?

About 4,100 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Stoddard Road over Ridenbaugh Canal?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.7 m) and a deck 50 ft wide.

Who owns Stoddard Road over Ridenbaugh Canal?

It is owned by the County Highway Agency.