US Bridges

CR Cnty RD 268 over Inyan Kara Creek

FairPosted for load

Crook County, Wyoming · 15 Mi. S.W. of Sundance · Structure no. DXD

Built
1960
65 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
51 ft
2 main spans
Daily traffic
74
2024 count
Owner
County
County Highway Agency

About this bridge

CR Cnty RD 268 over Inyan Kara Creek is a wood or timber stringer/multi-beam or girder carrying CR Cnty RD 268 over Inyan Kara Creek in Crook County, Wyoming. It was built in 1960, so it is 65 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 74 vehicles a day, roughly 8% of them trucks, projected to reach 104 by 2043. The structure is 51 ft (15.5 m) long and 20 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

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CarriesCR Cnty RD 268
CrossesInyan Kara Creek
Location15 Mi. S.W. of Sundance
RouteCounty Highway 268
CountyCrook County
StateWyoming
Coordinates44.31162, -104.61575
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionMarch 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33.5 US tons
Inventory rating23 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length51 ft (15.5 m)
Longest span25 ft (7.6 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic74 (2024)
Projected traffic104 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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$55,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR Cnty RD 268 over Inyan Kara Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is CR Cnty RD 268 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 268 over Inyan Kara Creek carry?

About 74 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is CR Cnty RD 268 over Inyan Kara Creek?

The structure is 51 ft (15.5 m) long with a longest span of 25 ft (7.6 m) and a deck 20 ft wide.

Who owns CR Cnty RD 268 over Inyan Kara Creek?

It is owned by the County Highway Agency.