US Bridges

Stanley-Warm Lake over Fir Creek

Good

Valley County, Idaho · 2 MI E. of Bruce Meadows · Structure no. 040205000012670

Built
2009
16 years old
Condition
Good
inspected September 2023
Type
Slab
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Stanley-Warm Lake over Fir Creek is a prestressed concrete slab carrying Stanley-Warm Lake over Fir Creek in Valley County, Idaho. It was built in 2009, so it is 16 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 46 ft (14 m) long and 28 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

Open in Google Maps
CarriesStanley-Warm Lake
CrossesFir Creek
Location2 MI E. of Bruce Meadows
RouteFederal Lands Road 579
CountyValley County
StateIdaho
Coordinates44.41279, -115.28576
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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.8 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length46 ft (14 m)
Longest span45 ft (13.7 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure2
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 Stanley-Warm Lake over Fir Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Stanley-Warm Lake over Fir Creek 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 September 2023.

How much traffic does Stanley-Warm Lake over Fir Creek carry?

About 50 vehicles per day (latest count).

How long is Stanley-Warm Lake over Fir Creek?

The structure is 46 ft (14 m) long with a longest span of 45 ft (13.7 m) and a deck 28 ft wide.

Who owns Stanley-Warm Lake over Fir Creek?

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