US Bridges

James Creek Road over Elk Creek

Good

Elmore County, Idaho · 5 N. Rocky Bar · Structure no. 000000000027877

Built
2007
18 years old
Condition
Good
inspected September 2024
Type
Slab
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
30
2023 count
Owner
Local
Other Local Agency

About this bridge

James Creek Road over Elk Creek is a prestressed concrete slab carrying James Creek Road over Elk Creek in Elmore County, Idaho. It was built in 2007, so it is 18 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, roughly 50% of them trucks, projected to reach 45 by 2042. The structure is 32 ft (9.8 m) long and 28 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesJames Creek Road
CrossesElk Creek
Location5 N. Rocky Bar
RouteCounty Highway 0
StateIdaho
Coordinates43.73222, -115.275
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating85 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic45 by 2042
Trucks50%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local 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 James Creek Road over Elk Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is James Creek Road over Elk Creek 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 September 2024.

How much traffic does James Creek Road over Elk Creek carry?

About 30 vehicles per day (2023 count), of which roughly 50% are trucks.

How long is James Creek Road over Elk Creek?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns James Creek Road over Elk Creek?

It is owned by the Other Local Agency.