US Bridges

Robinson Creek RD over Robinson Creek

FairPosted for load

Fremont County, Idaho · 0.3 S. 3.3 E. Warm River · Structure no. 000000000032125

Built
1935
90 years old, rebuilt 1991
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
39 ft
1 main span
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

Robinson Creek RD over Robinson Creek is a wood or timber stringer/multi-beam or girder carrying Robinson Creek RD over Robinson Creek in Fremont County, Idaho. It was built in 1935 and reconstructed in 1991, so it is 90 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. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, roughly 5% of them trucks, projected to reach 45 by 2039. The structure is 39 ft (11.9 m) long and 16 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesRobinson Creek RD
CrossesRobinson Creek
Location0.3 S. 3.3 E. Warm River
RouteFederal Lands Road 0
StateIdaho
Coordinates44.11219, -111.25147
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating33 US tons
Inventory rating24 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span37 ft (11.3 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic45 by 2039
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$423,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Robinson Creek RD over Robinson Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1991.

What condition is Robinson Creek RD over Robinson Creek 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 September 2024.

How much traffic does Robinson Creek RD over Robinson Creek carry?

About 30 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Robinson Creek RD over Robinson Creek?

The structure is 39 ft (11.9 m) long with a longest span of 37 ft (11.3 m) and a deck 16 ft wide.

Who owns Robinson Creek RD over Robinson Creek?

It is owned by the County Highway Agency.