US Bridges

Wyo 59 over Antelope Creek

Fair

Converse County, Wyoming · Douglas-Reno JCT · Structure no. JFB

Built
1993
32 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
280 ft
3 main spans
Daily traffic
996
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 59 over Antelope Creek is a steel continuous stringer/multi-beam or girder carrying Wyo 59 over Antelope Creek in Converse County, Wyoming. It was built in 1993, so it is 32 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 5 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 996 vehicles a day, roughly 28% of them trucks, projected to reach 1,394 by 2043. The structure is 280 ft (85.3 m) long and 43 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesWyo 59
CrossesAntelope Creek
LocationDouglas-Reno JCT
RouteState Highway 59
StateWyoming
Coordinates43.46334, -105.43526
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating41 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length280 ft (85.3 m)
Longest span108 ft (32.9 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic996 (2024)
Projected traffic1,394 by 2043
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes

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$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Wyo 59 over Antelope Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is Wyo 59 over Antelope 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 July 2024.

How much traffic does Wyo 59 over Antelope Creek carry?

About 996 vehicles per day (2024 count), of which roughly 28% are trucks.

How long is Wyo 59 over Antelope Creek?

The structure is 280 ft (85.3 m) long with a longest span of 108 ft (32.9 m) and a deck 43 ft wide.

Who owns Wyo 59 over Antelope Creek?

It is owned by the State Highway Agency.