US Bridges

Austin Road over Fish Creek

Fair

Blaine County, Idaho · 3.3 N. 4.6 E. Carey · Structure no. 000000000023731

Built
2009
16 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

Austin Road over Fish Creek is a steel stringer/multi-beam or girder carrying Austin Road over Fish Creek in Blaine County, Idaho. It was built in 2009, so it is 16 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 30 vehicles a day, roughly 50% of them trucks, projected to reach 45 by 2042. The structure is 25 ft (7.6 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesAustin Road
CrossesFish Creek
Location3.3 N. 4.6 E. Carey
RouteCounty Highway 0
StateIdaho
Coordinates43.3605, -113.85581
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating101 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span24 ft (7.2 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic45 by 2042
Trucks50%
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

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 Austin Road over Fish Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Austin Road over Fish 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 2023.

How much traffic does Austin Road over Fish Creek carry?

About 30 vehicles per day (2023 count), of which roughly 50% are trucks.

How long is Austin Road over Fish Creek?

The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.2 m) and a deck 24 ft wide.

Who owns Austin Road over Fish Creek?

It is owned by the County Highway Agency.