US Bridges

US 287 over Muddy Creek

Fair

Carbon County, Wyoming · Muddy Gap Jct-Wyo 28 JCT · Structure no. BSP

Built
1968
57 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
163 ft
3 main spans
Daily traffic
609
2024 count
Owner
State
State Highway Agency

About this bridge

US 287 over Muddy Creek is a steel continuous stringer/multi-beam or girder carrying US 287 over Muddy Creek in Carbon County, Wyoming. It was built in 1968, so it is 57 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 609 vehicles a day, roughly 14% of them trucks, projected to reach 853 by 2043. The structure is 163 ft (49.7 m) long and 38 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesUS 287
CrossesMuddy Creek
LocationMuddy Gap Jct-Wyo 28 JCT
RouteU.S. Route 287
StateWyoming
Coordinates42.36466, -107.44559
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating32 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length163 ft (49.7 m)
Longest span63 ft (19.2 m)
Deck width38 ft (11.5 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic609 (2024)
Projected traffic853 by 2043
Trucks14%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 287 over Muddy Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is US 287 over Muddy 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 June 2024.

How much traffic does US 287 over Muddy Creek carry?

About 609 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is US 287 over Muddy Creek?

The structure is 163 ft (49.7 m) long with a longest span of 63 ft (19.2 m) and a deck 38 ft wide.

Who owns US 287 over Muddy Creek?

It is owned by the State Highway Agency.