US Bridges

Wyo 120 over Greybull River

Fair

Park County, Wyoming · Meeteetse · Structure no. LBB

Built
2001
24 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
179 ft
3 main spans
Daily traffic
2,031
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 120 over Greybull River is a steel continuous stringer/multi-beam or girder carrying Wyo 120 over Greybull River in Park County, Wyoming. It was built in 2001, so it is 24 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 2,031 vehicles a day, roughly 14% of them trucks, projected to reach 2,843 by 2043. The structure is 179 ft (54.6 m) long and 48 ft wide. If it were closed, the detour would be 85.1 mi (137 km).

Location

Open in Google Maps
CarriesWyo 120
CrossesGreybull River
LocationMeeteetse
RouteState Highway 120
CountyPark County
StateWyoming
Coordinates44.15842, -108.8726
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 rating58 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length179 ft (54.6 m)
Longest span80 ft (24.5 m)
Deck width48 ft (14.6 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,031 (2024)
Projected traffic2,843 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed85.1 mi (137 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wyo 120 over Greybull River built?

It was built in 2001, making it 24 years old in 2025.

What condition is Wyo 120 over Greybull River 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 2023.

How much traffic does Wyo 120 over Greybull River carry?

About 2,031 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is Wyo 120 over Greybull River?

The structure is 179 ft (54.6 m) long with a longest span of 80 ft (24.5 m) and a deck 48 ft wide.

Who owns Wyo 120 over Greybull River?

It is owned by the State Highway Agency.