US Bridges

US 14A over Yellowtail Reservoir

Fair

Big Horn County, Wyoming · Lovell - Burgess JCT · Structure no. CDN

Built
1971
54 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
472 ft
3 main spans
Daily traffic
821
2024 count
Owner
State
State Highway Agency

About this bridge

US 14A over Yellowtail Reservoir is a steel continuous stringer/multi-beam or girder carrying US 14A over Yellowtail Reservoir in Big Horn County, Wyoming. It was built in 1971, so it is 54 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 821 vehicles a day, roughly 37% of them trucks, projected to reach 1,149 by 2043. The structure is 472 ft (143.9 m) long and 35 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesUS 14A
CrossesYellowtail Reservoir
LocationLovell - Burgess JCT
RouteU.S. Route 14
StateWyoming
Coordinates44.85598, -108.1803
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
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 geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length472 ft (143.9 m)
Longest span188 ft (57.3 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic821 (2024)
Projected traffic1,149 by 2043
Trucks37%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

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 14A over Yellowtail Reservoir built?

It was built in 1971, making it 54 years old in 2025.

What condition is US 14A over Yellowtail Reservoir 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 US 14A over Yellowtail Reservoir carry?

About 821 vehicles per day (2024 count), of which roughly 37% are trucks.

How long is US 14A over Yellowtail Reservoir?

The structure is 472 ft (143.9 m) long with a longest span of 188 ft (57.3 m) and a deck 35 ft wide.

Who owns US 14A over Yellowtail Reservoir?

It is owned by the State Highway Agency.