US Bridges

Wyo 220 over Eagle Creek

Fair

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

Built
1967
58 years old, rebuilt 1989
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
150 ft
3 main spans
Daily traffic
3,090
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 220 over Eagle Creek is a steel continuous stringer/multi-beam or girder carrying Wyo 220 over Eagle Creek in Natrona County, Wyoming. It was built in 1967 and reconstructed in 1989, so it is 58 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 3,090 vehicles a day, roughly 20% of them trucks, projected to reach 4,326 by 2043. The structure is 150 ft (45.7 m) long and 71 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesWyo 220
CrossesEagle Creek
LocationMuddy Gap Jct-Wyo 487 JCT
RouteState Highway 220
CountyNatrona County
StateWyoming
Coordinates42.562, -106.72323
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating56 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span58 ft (17.7 m)
Deck width71 ft (21.5 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,090 (2024)
Projected traffic4,326 by 2043
Trucks20%
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 statusHistorical significance not determinable at this time
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$212,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Wyo 220 over Eagle Creek built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1989.

What condition is Wyo 220 over Eagle 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 Eagle Creek carry?

About 3,090 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is Wyo 220 over Eagle Creek?

The structure is 150 ft (45.7 m) long with a longest span of 58 ft (17.7 m) and a deck 71 ft wide.

Who owns Wyo 220 over Eagle Creek?

It is owned by the State Highway Agency.