US Bridges

Stibnite Road over E Fk of S Fk Salmon Rvr

Good

Valley County, Idaho · 8.0 E Yellow Pine · Structure no. 000000000033921

Built
2012
13 years old
Condition
Good
inspected August 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
53 ft
1 main span
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

Stibnite Road over E Fk of S Fk Salmon Rvr is a steel stringer/multi-beam or girder carrying Stibnite Road over E Fk of S Fk Salmon Rvr in Valley County, Idaho. It was built in 2012, so it is 13 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, roughly 50% of them trucks, projected to reach 45 by 2042. The structure is 53 ft (16.2 m) long and 16 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesStibnite Road
CrossesE Fk of S Fk Salmon Rvr
Location8.0 E Yellow Pine
RouteCounty Highway 0
StateIdaho
Coordinates44.93414, -115.33661
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating42.5 US tons
Inventory rating32.5 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length53 ft (16.2 m)
Longest span50 ft (15.2 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic45 by 2042
Trucks50%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Stibnite Road over E Fk of S Fk Salmon Rvr built?

It was built in 2012, making it 13 years old in 2025.

What condition is Stibnite Road over E Fk of S Fk Salmon Rvr in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2021.

How much traffic does Stibnite Road over E Fk of S Fk Salmon Rvr carry?

About 30 vehicles per day (2023 count), of which roughly 50% are trucks.

How long is Stibnite Road over E Fk of S Fk Salmon Rvr?

The structure is 53 ft (16.2 m) long with a longest span of 50 ft (15.2 m) and a deck 16 ft wide.

Who owns Stibnite Road over E Fk of S Fk Salmon Rvr?

It is owned by the County Highway Agency.