US Bridges

Dry Creek Road over Little Wood River

Fair

Blaine County, Idaho · 1.2 N. 0.9 W. Carey · Structure no. 000000000023710

Built
1977
48 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
120
2023 count
Owner
County
County Highway Agency

About this bridge

Dry Creek Road over Little Wood River is a prestressed concrete stringer/multi-beam or girder carrying Dry Creek Road over Little Wood River in Blaine County, Idaho. It was built in 1977, so it is 48 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 120 vehicles a day, roughly 9% of them trucks, projected to reach 180 by 2042. The structure is 66 ft (20.1 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesDry Creek Road
CrossesLittle Wood River
Location1.2 N. 0.9 W. Carey
RouteCounty Highway 0
StateIdaho
Coordinates43.32769, -113.96667
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating63.1 US tons
Inventory rating32 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span64 ft (19.5 m)
Deck width28 ft (8.4 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2023)
Projected traffic180 by 2042
Trucks9%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dry Creek Road over Little Wood River built?

It was built in 1977, making it 48 years old in 2025.

What condition is Dry Creek Road over Little Wood River 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 September 2024.

How much traffic does Dry Creek Road over Little Wood River carry?

About 120 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Dry Creek Road over Little Wood River?

The structure is 66 ft (20.1 m) long with a longest span of 64 ft (19.5 m) and a deck 28 ft wide.

Who owns Dry Creek Road over Little Wood River?

It is owned by the County Highway Agency.