US Bridges

Hot Springs Road over Bruneau River

Fair

Owyhee County, Idaho · 6.1 S. 3.8 E. Bruneau · Structure no. 000000000028280

Built
1989
36 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
130 ft
2 main spans
Daily traffic
60
2023 count
Owner
County
County Highway Agency

About this bridge

Hot Springs Road over Bruneau River is a prestressed concrete continuous stringer/multi-beam or girder carrying Hot Springs Road over Bruneau River in Owyhee County, Idaho. It was built in 1989, so it is 36 years old, younger 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 60 vehicles a day, roughly 10% of them trucks, projected to reach 90 by 2039. The structure is 130 ft (39.6 m) long and 34 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesHot Springs Road
CrossesBruneau River
Location6.1 S. 3.8 E. Bruneau
RouteCounty Highway 0
StateIdaho
Coordinates42.79159, -115.71903
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating40.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span63 ft (19.2 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic90 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 Hot Springs Road over Bruneau River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Hot Springs Road over Bruneau 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 February 2024.

How much traffic does Hot Springs Road over Bruneau River carry?

About 60 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Hot Springs Road over Bruneau River?

The structure is 130 ft (39.6 m) long with a longest span of 63 ft (19.2 m) and a deck 34 ft wide.

Who owns Hot Springs Road over Bruneau River?

It is owned by the County Highway Agency.