US Bridges

Fs Route No. 1268 over Adair Creek

Fair

Shoshone County, Idaho · Adair Creek · Structure no. 010402000000073

Built
1969
56 years old, rebuilt 2010
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
25 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Fs Route No. 1268 over Adair Creek is a wood or timber stringer/multi-beam or girder carrying Fs Route No. 1268 over Adair Creek in Shoshone County, Idaho. It was built in 1969 and reconstructed in 2010, so it is 56 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 25 ft (7.5 m) long and 25 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

Open in Google Maps
CarriesFs Route No. 1268
CrossesAdair Creek
LocationAdair Creek
RouteFederal Lands Road 1268
CountyShoshone County
StateIdaho
Coordinates47.08813, -115.82154
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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 rating59.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadOther
Structure length25 ft (7.5 m)
Longest span23 ft (7 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fs Route No. 1268 over Adair Creek built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2010.

What condition is Fs Route No. 1268 over Adair 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 July 2024.

How much traffic does Fs Route No. 1268 over Adair Creek carry?

About 50 vehicles per day (latest count).

How long is Fs Route No. 1268 over Adair Creek?

The structure is 25 ft (7.5 m) long with a longest span of 23 ft (7 m) and a deck 25 ft wide.

Who owns Fs Route No. 1268 over Adair Creek?

It is owned by the U.S. Forest Service.