US Bridges

Frontage Road over Dairy Canyon Creek

Fair

Power County, Idaho · 13.2 W. American Falls · Structure no. 000000000023565

Built
1983
42 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
31 ft
1 main span
Daily traffic
50
2023 count
Owner
State
State Highway Agency

About this bridge

Frontage Road over Dairy Canyon Creek is a concrete culvert carrying Frontage Road over Dairy Canyon Creek in Power County, Idaho. It was built in 1983, so it is 42 years old, younger 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 75 by 2039. The structure is 31 ft (9.4 m) long and 117 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFrontage Road
CrossesDairy Canyon Creek
Location13.2 W. American Falls
RouteCounty Highway 0
CountyPower County
StateIdaho
Coordinates42.64328, -113.03353
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating110.1 US tons
Inventory rating92 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width117 ft (35.8 m)
Roadway width112 ft (34 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Frontage Road over Dairy Canyon Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is Frontage Road over Dairy Canyon Creek 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 May 2024.

How much traffic does Frontage Road over Dairy Canyon Creek carry?

About 50 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Frontage Road over Dairy Canyon Creek?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 117 ft wide.

Who owns Frontage Road over Dairy Canyon Creek?

It is owned by the State Highway Agency.