US Bridges

Wyo 24 over South Fork Hay Creek

Fair

Crook County, Wyoming · Hulett-South Dakota Line · Structure no. FBI

Built
1984
41 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
118 ft
3 main spans
Daily traffic
791
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 24 over South Fork Hay Creek is a steel continuous stringer/multi-beam or girder carrying Wyo 24 over South Fork Hay Creek in Crook County, Wyoming. It was built in 1984, so it is 41 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 791 vehicles a day, roughly 13% of them trucks, projected to reach 1,107 by 2043. The structure is 118 ft (36 m) long and 43 ft wide. If it were closed, the detour would be 39.1 mi (63 km).

CarriesWyo 24
CrossesSouth Fork Hay Creek
LocationHulett-South Dakota Line
RouteState Highway 24
StateWyoming
Coordinates44.64977, -104.11075
Functional classRural Major 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length118 ft (36 m)
Longest span44 ft (13.4 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic791 (2024)
Projected traffic1,107 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.1 mi (63 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wyo 24 over South Fork Hay Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Wyo 24 over South Fork Hay 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 Wyo 24 over South Fork Hay Creek carry?

About 791 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is Wyo 24 over South Fork Hay Creek?

The structure is 118 ft (36 m) long with a longest span of 44 ft (13.4 m) and a deck 43 ft wide.

Who owns Wyo 24 over South Fork Hay Creek?

It is owned by the State Highway Agency.