US Bridges

Road over Warm River

Good

Fremont County, Idaho · No Data Entered · Structure no. 041503000001039

Built
1980
45 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
26 ft
1 main span
Daily traffic
36
Owner
Federal
U.S. Forest Service

About this bridge

Road over Warm River is a wood or timber stringer/multi-beam or girder carrying Road over Warm River in Fremont County, Idaho. It was built in 1980, so it is 45 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 36 vehicles a day, projected to reach 54 by 2045. The structure is 26 ft (7.9 m) long and 15 ft wide.

CarriesRoad
CrossesWarm River
LocationNo Data Entered
RouteFederal Lands Road 80150
StateIdaho
Coordinates44.3361, -111.29319
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating35.1 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 20
Structure length26 ft (7.9 m)
Longest span22 ft (6.7 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (—)
Projected traffic54 by 2045
Trucks—
Lanes on structure2
Traffic directionHighway traffic not carried
CarriesHighway
CrossesWaterway
Detour if closed—
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 1980, making it 45 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 2024.

How much traffic does Road over Warm River carry?

About 36 vehicles per day (latest count).

How long is Road over Warm River?

The structure is 26 ft (7.9 m) long with a longest span of 22 ft (6.7 m) and a deck 15 ft wide.

Who owns Road over Warm River?

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