US Bridges

Wyo 220 over Horse Creek

Fair

Natrona County, Wyoming · Muddy Gap Jct-Wyo 487 JCT · Structure no. BUF

Built
1970
55 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete Continuous
Length
154 ft
3 main spans
Daily traffic
2,303
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 220 over Horse Creek is a concrete continuous tee beam carrying Wyo 220 over Horse Creek in Natrona County, Wyoming. It was built in 1970, so it is 55 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 2,303 vehicles a day, roughly 29% of them trucks, projected to reach 3,224 by 2043. The structure is 154 ft (46.9 m) long and 39 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesWyo 220
CrossesHorse Creek
LocationMuddy Gap Jct-Wyo 487 JCT
RouteState Highway 220
CountyNatrona County
StateWyoming
Coordinates42.56685, -107.00039
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
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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length154 ft (46.9 m)
Longest span60 ft (18.3 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,303 (2024)
Projected traffic3,224 by 2043
Trucks29%
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 statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$129,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Wyo 220 over Horse Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Wyo 220 over Horse 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 April 2023.

How much traffic does Wyo 220 over Horse Creek carry?

About 2,303 vehicles per day (2024 count), of which roughly 29% are trucks.

How long is Wyo 220 over Horse Creek?

The structure is 154 ft (46.9 m) long with a longest span of 60 ft (18.3 m) and a deck 39 ft wide.

Who owns Wyo 220 over Horse Creek?

It is owned by the State Highway Agency.