US Bridges

Cb Cnty RD 291 over Austin Creek

FairPosted for load

Carbon County, Wyoming · 12 Miles N.W. of Hanna · Structure no. DNF

Built
1948
77 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
31 ft
2 main spans
Daily traffic
123
2024 count
Owner
County
County Highway Agency

About this bridge

Cb Cnty RD 291 over Austin Creek is a steel continuous stringer/multi-beam or girder carrying Cb Cnty RD 291 over Austin Creek in Carbon County, Wyoming. It was built in 1948, so it is 77 years old, older than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 123 vehicles a day, roughly 46% of them trucks, projected to reach 172 by 2043. The structure is 31 ft (9.4 m) long and 20 ft wide. If it were closed, the detour would be 67.1 mi (108 km).

CarriesCb Cnty RD 291
CrossesAustin Creek
Location12 Miles N.W. of Hanna
RouteCounty Highway 291
StateWyoming
Coordinates42.05956, -106.71364
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating103 US tons
Inventory rating61.9 US tons

Structure

MaterialSteel Continuous
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span15 ft (4.6 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic123 (2024)
Projected traffic172 by 2043
Trucks46%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed67.1 mi (108 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$224,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Cb Cnty RD 291 over Austin Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is Cb Cnty RD 291 over Austin 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 August 2024.

How much traffic does Cb Cnty RD 291 over Austin Creek carry?

About 123 vehicles per day (2024 count), of which roughly 46% are trucks.

How long is Cb Cnty RD 291 over Austin Creek?

The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.6 m) and a deck 20 ft wide.

Who owns Cb Cnty RD 291 over Austin Creek?

It is owned by the County Highway Agency.