US Bridges

Aspen Cove over Ridenbaugh Canal

Fair

Ada County, Idaho · 1.9 S. 1.2 W. Meridian · Structure no. 000000000025730

Built
1974
51 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
390
2023 count
Owner
County
County Highway Agency

About this bridge

Aspen Cove over Ridenbaugh Canal is a prestressed concrete tee beam carrying Aspen Cove over Ridenbaugh Canal in Ada County, Idaho. It was built in 1974, so it is 51 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 390 vehicles a day, roughly 3% of them trucks, projected to reach 585 by 2039. The structure is 25 ft (7.6 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesAspen Cove
CrossesRidenbaugh Canal
Location1.9 S. 1.2 W. Meridian
RouteCounty Highway 0
CountyAda County
StateIdaho
Coordinates43.58292, -116.41483
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span24 ft (7.3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2023)
Projected traffic585 by 2039
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$335,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Aspen Cove over Ridenbaugh Canal built?

It was built in 1974, making it 51 years old in 2025.

What condition is Aspen Cove 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 October 2024.

How much traffic does Aspen Cove over Ridenbaugh Canal carry?

About 390 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Aspen Cove over Ridenbaugh Canal?

The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.3 m) and a deck 28 ft wide.

Who owns Aspen Cove over Ridenbaugh Canal?

It is owned by the County Highway Agency.