US Bridges

Bull Creek Road over Little Lost River

Fair

Custer County, Idaho · No Data Entered · Structure no. 040604000001139

Built
1971
54 years old, rebuilt 1999
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
34 ft
1 main span
Daily traffic
10
1994 count
Owner
Federal
U.S. Forest Service

About this bridge

Bull Creek Road over Little Lost River is a wood or timber stringer/multi-beam or girder carrying Bull Creek Road over Little Lost River in Custer County, Idaho. It was built in 1971 and reconstructed in 1999, so it is 54 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 10 vehicles a day, projected to reach 12 by 2015. The structure is 34 ft (10.5 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesBull Creek Road
CrossesLittle Lost River
LocationNo Data Entered
RouteFederal Lands Road 40103
StateIdaho
Coordinates44.36659, -113.38523
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.5 US tons
Inventory rating28.9 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadOther
Structure length34 ft (10.5 m)
Longest span33 ft (10.1 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1994)
Projected traffic12 by 2015
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 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 Bull Creek Road over Little Lost River built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1999.

What condition is Bull Creek Road over Little Lost River 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 2024.

How much traffic does Bull Creek Road over Little Lost River carry?

About 10 vehicles per day (1994 count).

How long is Bull Creek Road over Little Lost River?

The structure is 34 ft (10.5 m) long with a longest span of 33 ft (10.1 m) and a deck 16 ft wide.

Who owns Bull Creek Road over Little Lost River?

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