US Bridges

Wyo 28 over Little Sandy River

Fair

Sweetwater County, Wyoming · Farson - JCT US 287 · Structure no. DZW

Built
1982
43 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
104 ft
3 main spans
Daily traffic
1,846
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 28 over Little Sandy River is a steel continuous stringer/multi-beam or girder carrying Wyo 28 over Little Sandy River in Sweetwater County, Wyoming. It was built in 1982, so it is 43 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 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 1,846 vehicles a day, roughly 10% of them trucks, projected to reach 2,584 by 2043. The structure is 104 ft (31.7 m) long and 39 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesWyo 28
CrossesLittle Sandy River
LocationFarson - JCT US 287
RouteState Highway 28
StateWyoming
Coordinates42.13328, -109.39608
Functional classRural Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
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 rating57 US tons
Inventory rating34 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length104 ft (31.7 m)
Longest span40 ft (12.2 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic1,846 (2024)
Projected traffic2,584 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wyo 28 over Little Sandy River built?

It was built in 1982, making it 43 years old in 2025.

What condition is Wyo 28 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 July 2024.

How much traffic does Wyo 28 over Little Sandy River carry?

About 1,846 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Wyo 28 over Little Sandy River?

The structure is 104 ft (31.7 m) long with a longest span of 40 ft (12.2 m) and a deck 39 ft wide.

Who owns Wyo 28 over Little Sandy River?

It is owned by the State Highway Agency.