US Bridges

East Fork Road over E.Fk. of S.Fk.Salmon Rvr

Fair

Valley County, Idaho · 14.0 W. Yellow Pine · Structure no. 000000000020165

Built
1941
84 years old, rebuilt 2009
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
248 ft
4 main spans
Daily traffic
40
2023 count
Owner
County
County Highway Agency

About this bridge

East Fork Road over E.Fk. of S.Fk.Salmon Rvr is a steel continuous stringer/multi-beam or girder carrying East Fork Road over E.Fk. of S.Fk.Salmon Rvr in Valley County, Idaho. It was built in 1941 and reconstructed in 2009, so it is 84 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 40 vehicles a day, roughly 33% of them trucks, projected to reach 60 by 2042. The structure is 248 ft (75.6 m) long and 16 ft wide. If it were closed, the detour would be 55.9 mi (90 km).

CarriesEast Fork Road
CrossesE.Fk. of S.Fk.Salmon Rvr
Location14.0 W. Yellow Pine
RouteCounty Highway 0
StateIdaho
Coordinates45.01089, -115.71381
Functional classRural Minor 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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99.9 US tons
Inventory rating88 US tons

Structure

MaterialSteel Continuous
DeckCorrugated steel
Main spans4
Design loadHS 25 or greater
Structure length248 ft (75.6 m)
Longest span70 ft (21.3 m)
Deck width16 ft (5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2023)
Projected traffic60 by 2042
Trucks33%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed55.9 mi (90 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 East Fork Road over E.Fk. of S.Fk.Salmon Rvr built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 2009.

What condition is East Fork Road over E.Fk. of S.Fk.Salmon Rvr 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 August 2024.

How much traffic does East Fork Road over E.Fk. of S.Fk.Salmon Rvr carry?

About 40 vehicles per day (2023 count), of which roughly 33% are trucks.

How long is East Fork Road over E.Fk. of S.Fk.Salmon Rvr?

The structure is 248 ft (75.6 m) long with a longest span of 70 ft (21.3 m) and a deck 16 ft wide.

Who owns East Fork Road over E.Fk. of S.Fk.Salmon Rvr?

It is owned by the County Highway Agency.