US Bridges

Wyo 28 over Sweetwater River

Fair

Fremont County, Wyoming · Farson - JCT US 287 · Structure no. DLO

Built
1981
44 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
127 ft
1 main span
Daily traffic
1,401
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 28 over Sweetwater River is a prestressed concrete stringer/multi-beam or girder carrying Wyo 28 over Sweetwater River in Fremont County, Wyoming. It was built in 1981, so it is 44 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 1,401 vehicles a day, roughly 16% of them trucks, projected to reach 1,961 by 2043. The structure is 127 ft (38.8 m) long and 39 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesWyo 28
CrossesSweetwater River
LocationFarson - JCT US 287
RouteState Highway 28
CountyFremont County
StateWyoming
Coordinates42.37975, -108.89858
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating64.2 US tons
Inventory rating38.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length127 ft (38.8 m)
Longest span124 ft (37.8 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,401 (2024)
Projected traffic1,961 by 2043
Trucks16%
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 Sweetwater River built?

It was built in 1981, making it 44 years old in 2025.

What condition is Wyo 28 over Sweetwater 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 August 2024.

How much traffic does Wyo 28 over Sweetwater River carry?

About 1,401 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is Wyo 28 over Sweetwater River?

The structure is 127 ft (38.8 m) long with a longest span of 124 ft (37.8 m) and a deck 39 ft wide.

Who owns Wyo 28 over Sweetwater River?

It is owned by the State Highway Agency.