US Bridges

1775 South Road over Little Wood River

Fair

Gooding County, Idaho · 0.3 N. 4.3 E. Gooding · Structure no. 000000000024445

Built
1926
99 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete
Length
35 ft
1 main span
Daily traffic
800
2023 count
Owner
Local
Other Local Agency

About this bridge

1775 South Road over Little Wood River is a concrete tee beam carrying 1775 South Road over Little Wood River in Gooding County, Idaho. It was built in 1926, so it is 99 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 800 vehicles a day, roughly 18% of them trucks, projected to reach 1,200 by 2042. The structure is 35 ft (10.7 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries1775 South Road
CrossesLittle Wood River
Location0.3 N. 4.3 E. Gooding
RouteCounty Highway 0
StateIdaho
Coordinates42.94244, -114.62836
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length35 ft (10.7 m)
Longest span33 ft (10.1 m)
Deck width24 ft (7.4 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2023)
Projected traffic1,200 by 2042
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$471,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 1775 South Road over Little Wood River built?

It was built in 1926, making it 99 years old in 2025.

What condition is 1775 South Road over Little Wood 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 March 2024.

How much traffic does 1775 South Road over Little Wood River carry?

About 800 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is 1775 South Road over Little Wood River?

The structure is 35 ft (10.7 m) long with a longest span of 33 ft (10.1 m) and a deck 24 ft wide.

Who owns 1775 South Road over Little Wood River?

It is owned by the Other Local Agency.