US Bridges

CR Cnty RD 93 over Inyan Kara Creek

PoorPosted for load

Crook County, Wyoming · T50N R065W S24 · Structure no. DWO

Built
1955
70 years old
Condition
Poor
inspected March 2024
Type
Other
Steel
Length
42 ft
1 main span
Daily traffic
41
2024 count
Owner
County
County Highway Agency

About this bridge

CR Cnty RD 93 over Inyan Kara Creek is a steel other carrying CR Cnty RD 93 over Inyan Kara Creek in Crook County, Wyoming. It was built in 1955, so it is 70 years old, older than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 41 vehicles a day, roughly 17% of them trucks, projected to reach 57 by 2043. The structure is 42 ft (12.8 m) long and 17 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesCR Cnty RD 93
CrossesInyan Kara Creek
LocationT50N R065W S24
RouteCounty Highway 93
StateWyoming
Coordinates44.3105, -104.61353
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating4 US tons
Inventory rating4 US tons

Structure

Structure typeOther
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span38 ft (11.6 m)
Deck width17 ft (5.1 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2024)
Projected traffic57 by 2043
Trucks17%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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$276,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR Cnty RD 93 over Inyan Kara Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is CR Cnty RD 93 over Inyan Kara Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does CR Cnty RD 93 over Inyan Kara Creek carry?

About 41 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is CR Cnty RD 93 over Inyan Kara Creek?

The structure is 42 ft (12.8 m) long with a longest span of 38 ft (11.6 m) and a deck 17 ft wide.

Who owns CR Cnty RD 93 over Inyan Kara Creek?

It is owned by the County Highway Agency.