US Bridges

CR Cnty RD 180 over Inyan Kara Creek

Fair

Crook County, Wyoming · 6.5M N.E. of Pine Haven · Structure no. DJW

Built
1978
47 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Prestressed Concrete
Length
77 ft
3 main spans
Daily traffic
131
2024 count
Owner
County
County Highway Agency

About this bridge

CR Cnty RD 180 over Inyan Kara Creek is a prestressed concrete tee beam carrying CR Cnty RD 180 over Inyan Kara Creek in Crook County, Wyoming. It was built in 1978, so it is 47 years old, younger 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 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 131 vehicles a day, roughly 44% of them trucks, projected to reach 183 by 2043. The structure is 77 ft (23.5 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCR Cnty RD 180
CrossesInyan Kara Creek
Location6.5M N.E. of Pine Haven
RouteCounty Highway 180
CountyCrook County
StateWyoming
Coordinates44.45609, -104.73609
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span24 ft (7.3 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic131 (2024)
Projected traffic183 by 2043
Trucks44%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$24,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR Cnty RD 180 over Inyan Kara Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is CR Cnty RD 180 over Inyan Kara 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 March 2024.

How much traffic does CR Cnty RD 180 over Inyan Kara Creek carry?

About 131 vehicles per day (2024 count), of which roughly 44% are trucks.

How long is CR Cnty RD 180 over Inyan Kara Creek?

The structure is 77 ft (23.5 m) long with a longest span of 24 ft (7.3 m) and a deck 29 ft wide.

Who owns CR Cnty RD 180 over Inyan Kara Creek?

It is owned by the County Highway Agency.