US Bridges

STC2814;LTL Wood over Little Wood River

Fair

Blaine County, Idaho · 2.8 N. 2.0 W. Carey · Structure no. 000000000019550

Built
1978
47 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
96 ft
1 main span
Daily traffic
260
2023 count
Owner
County
County Highway Agency

About this bridge

STC2814;LTL Wood over Little Wood River is a prestressed concrete stringer/multi-beam or girder carrying STC2814;LTL Wood over Little Wood River in Blaine County, Idaho. It was built in 1978, so it is 47 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 5 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 260 vehicles a day, roughly 8% of them trucks, projected to reach 390 by 2042. The structure is 96 ft (29.3 m) long and 32 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSTC2814;LTL Wood
CrossesLittle Wood River
Location2.8 N. 2.0 W. Carey
RouteCounty Highway 2814
CountyBlaine County
StateIdaho
Coordinates43.35439, -113.98458
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span94 ft (28.7 m)
Deck width32 ft (9.7 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2023)
Projected traffic390 by 2042
Trucks8%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$891,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was STC2814;LTL Wood over Little Wood River built?

It was built in 1978, making it 47 years old in 2025.

What condition is STC2814;LTL Wood 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 2023.

How much traffic does STC2814;LTL Wood over Little Wood River carry?

About 260 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is STC2814;LTL Wood over Little Wood River?

The structure is 96 ft (29.3 m) long with a longest span of 94 ft (28.7 m) and a deck 32 ft wide.

Who owns STC2814;LTL Wood over Little Wood River?

It is owned by the County Highway Agency.