US Bridges

Road over Warm River

Good

Fremont County, Idaho · No Data Entered · Structure no. 041552000013177

Built
2010
15 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Single or Spread
Concrete
Length
54 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Road over Warm River is a concrete box beam or girders - single or spread carrying Road over Warm River in Fremont County, Idaho. It was built in 2010, so it is 15 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 7 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 54 ft (16.5 m) long and 16 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesRoad
CrossesWarm River
LocationNo Data Entered
RouteFederal Lands Road 80154
StateIdaho
Coordinates44.2058, -111.25164
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation*: *
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating—
Inventory rating—

Structure

MaterialConcrete
DeckOther
Main spans1
Design loadHL 93
Structure length54 ft (16.5 m)
Longest span50 ft (15.2 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
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 Road over Warm River built?

It was built in 2010, making it 15 years old in 2025.

What condition is Road over Warm River 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 October 2023.

How much traffic does Road over Warm River carry?

About 50 vehicles per day (latest count).

How long is Road over Warm River?

The structure is 54 ft (16.5 m) long with a longest span of 50 ft (15.2 m) and a deck 16 ft wide.

Who owns Road over Warm River?

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