US Bridges

I-80 Wbl over Swanson Drive

Good

Sweetwater County, Wyoming · Rock Springs Marginal · Structure no. LYE

Built
2008
17 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
130 ft
3 main spans
Daily traffic
8,272
2024 count
Owner
State
State Highway Agency

About this bridge

I-80 Wbl over Swanson Drive is a steel continuous stringer/multi-beam or girder carrying I-80 Wbl over Swanson Drive in Sweetwater County, Wyoming. It was built in 2008, so it is 17 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 8,272 vehicles a day, roughly 49% of them trucks, projected to reach 11,581 by 2043. The structure is 130 ft (39.6 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-80 Wbl
CrossesSwanson Drive
LocationRock Springs Marginal
RouteInterstate 80
CountySweetwater County
StateWyoming
Coordinates41.59903, -109.20046
Functional classUrban Principal Arterial - Interstate

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length130 ft (39.6 m)
Longest span50 ft (15.2 m)
Deck width49 ft (15 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,272 (2024)
Projected traffic11,581 by 2043
Trucks49%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-80 Wbl over Swanson Drive built?

It was built in 2008, making it 17 years old in 2025.

What condition is I-80 Wbl over Swanson Drive 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 June 2023.

How much traffic does I-80 Wbl over Swanson Drive carry?

About 8,272 vehicles per day (2024 count), of which roughly 49% are trucks.

How long is I-80 Wbl over Swanson Drive?

The structure is 130 ft (39.6 m) long with a longest span of 50 ft (15.2 m) and a deck 49 ft wide.

Who owns I-80 Wbl over Swanson Drive?

It is owned by the State Highway Agency.