US Bridges

US 16 over Greybull River

Fair

Big Horn County, Wyoming · Basin - Greybull · Structure no. CCV

Built
1955
70 years old, rebuilt 2005
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
153 ft
3 main spans
Daily traffic
3,036
2024 count
Owner
State
State Highway Agency

About this bridge

US 16 over Greybull River is a steel continuous stringer/multi-beam or girder carrying US 16 over Greybull River in Big Horn County, Wyoming. It was built in 1955 and reconstructed in 2005, so it is 70 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 3,036 vehicles a day, roughly 7% of them trucks, projected to reach 4,250 by 2043. The structure is 153 ft (46.5 m) long and 43 ft wide.

CarriesUS 16
CrossesGreybull River
LocationBasin - Greybull
RouteU.S. Route 16
StateWyoming
Coordinates44.47027, -108.05772
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 protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length153 ft (46.5 m)
Longest span57 ft (17.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,036 (2024)
Projected traffic4,250 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 16 over Greybull River built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2005.

What condition is US 16 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 May 2023.

How much traffic does US 16 over Greybull River carry?

About 3,036 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is US 16 over Greybull River?

The structure is 153 ft (46.5 m) long with a longest span of 57 ft (17.5 m) and a deck 43 ft wide.

Who owns US 16 over Greybull River?

It is owned by the State Highway Agency.