US Bridges

Wyo 59 over Antelope Butte Creek

Fair

Campbell County, Wyoming · Reno JCT - Gillette · Structure no. CBH

Built
1975
50 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete Continuous
Length
26 ft
3 main spans
Daily traffic
19,425
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 59 over Antelope Butte Creek is a concrete continuous culvert carrying Wyo 59 over Antelope Butte Creek in Campbell County, Wyoming. It was built in 1975, so it is 50 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 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 19,425 vehicles a day, roughly 3% of them trucks, projected to reach 27,195 by 2043. The structure is 26 ft (7.8 m) long. If it were closed, the detour would be 98.8 mi (159 km).

CarriesWyo 59
CrossesAntelope Butte Creek
LocationReno JCT - Gillette
RouteState Highway 59
StateWyoming
Coordinates44.24331, -105.4703
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length26 ft (7.8 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,425 (2024)
Projected traffic27,195 by 2043
Trucks3%
Lanes on structure5
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$80,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Wyo 59 over Antelope Butte Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Wyo 59 over Antelope Butte 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 Butte Creek carry?

About 19,425 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Wyo 59 over Antelope Butte Creek?

The structure is 26 ft (7.8 m) long with a longest span of 8 ft (2.4 m).

Who owns Wyo 59 over Antelope Butte Creek?

It is owned by the State Highway Agency.