US Bridges

4421: Sheeps Trail over Big Sandy River

Good

Sweetwater County, Wyoming · 7 MI SE of Farson Wy · Structure no. 0000000L2014634

Built
2014
11 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
88 ft
1 main span
Daily traffic
25
2022 count
Owner
Federal
Bureau of Land Management

About this bridge

4421: Sheeps Trail over Big Sandy River is a steel stringer/multi-beam or girder carrying 4421: Sheeps Trail over Big Sandy River in Sweetwater County, Wyoming. It was built in 2014, so it is 11 years old, younger than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25 vehicles a day, projected to reach 30 by 2040. The structure is 88 ft (26.7 m) long and 14 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
Carries4421: Sheeps Trail
CrossesBig Sandy River
Location7 MI SE of Farson Wy
RouteFederal Lands Road 0
CountySweetwater County
StateWyoming
Coordinates42.04, -109.54631
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.4 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length88 ft (26.7 m)
Longest span85 ft (25.9 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic30 by 2040
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Land Management
Maintained byBureau of Land Management
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost$1,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 4421: Sheeps Trail over Big Sandy River built?

It was built in 2014, making it 11 years old in 2025.

What condition is 4421: Sheeps Trail over Big Sandy River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does 4421: Sheeps Trail over Big Sandy River carry?

About 25 vehicles per day (2022 count).

How long is 4421: Sheeps Trail over Big Sandy River?

The structure is 88 ft (26.7 m) long with a longest span of 85 ft (25.9 m) and a deck 14 ft wide.

Who owns 4421: Sheeps Trail over Big Sandy River?

It is owned by the Bureau of Land Management.