US Bridges

US 191 over Little Sandy River

Fair

Sweetwater County, Wyoming · Rock Springs - Farson · Structure no. BRK

Built
1958
67 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
152 ft
3 main spans
Daily traffic
2,354
2024 count
Owner
State
State Highway Agency

About this bridge

US 191 over Little Sandy River is a steel continuous stringer/multi-beam or girder carrying US 191 over Little Sandy River in Sweetwater County, Wyoming. It was built in 1958, so it is 67 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 2,354 vehicles a day, roughly 16% of them trucks, projected to reach 3,296 by 2043. The structure is 152 ft (46.3 m) long and 35 ft wide. If it were closed, the detour would be 37.9 mi (61 km).

CarriesUS 191
CrossesLittle Sandy River
LocationRock Springs - Farson
RouteU.S. Route 191
StateWyoming
Coordinates42.09958, -109.44542
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length152 ft (46.3 m)
Longest span57 ft (17.4 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,354 (2024)
Projected traffic3,296 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.9 mi (61 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$184,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 191 over Little Sandy River built?

It was built in 1958, making it 67 years old in 2025.

What condition is US 191 over Little Sandy 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 June 2023.

How much traffic does US 191 over Little Sandy River carry?

About 2,354 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is US 191 over Little Sandy River?

The structure is 152 ft (46.3 m) long with a longest span of 57 ft (17.4 m) and a deck 35 ft wide.

Who owns US 191 over Little Sandy River?

It is owned by the State Highway Agency.