US Bridges

No Data Entered over North Fork Salmon

Fair

Lemhi County, Idaho · No Data Entered · Structure no. 041302000001101

Built
1952
73 years old, rebuilt 1995
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

No Data Entered over North Fork Salmon is a steel stringer/multi-beam or girder carrying No Data Entered over North Fork Salmon in Lemhi County, Idaho. It was built in 1952 and reconstructed in 1995, so it is 73 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 55 ft (16.8 m) long and 24 ft wide.

CarriesNo Data Entered
CrossesNorth Fork Salmon
LocationNo Data Entered
RouteFederal Lands Road 60442
StateIdaho
Coordinates45.60853, -113.96633
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.4 US tons
Inventory rating46.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length55 ft (16.8 m)
Longest span53 ft (16.2 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 No Data Entered over North Fork Salmon built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1995.

What condition is No Data Entered over North Fork Salmon 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 October 2023.

How much traffic does No Data Entered over North Fork Salmon carry?

About 50 vehicles per day (latest count).

How long is No Data Entered over North Fork Salmon?

The structure is 55 ft (16.8 m) long with a longest span of 53 ft (16.2 m) and a deck 24 ft wide.

Who owns No Data Entered over North Fork Salmon?

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