US Bridges

I-80 Wbl over Machinery Pass

Good

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

Built
2007
18 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 Machinery Pass is a steel continuous stringer/multi-beam or girder carrying I-80 Wbl over Machinery Pass in Sweetwater County, Wyoming. It was built in 2007, so it is 18 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 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-80 Wbl
CrossesMachinery Pass
LocationRock Springs Marginal
RouteInterstate 80
StateWyoming
Coordinates41.60771, -109.21137
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.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.9 US tons
Inventory rating53.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length130 ft (39.6 m)
Longest span50 ft (15.2 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 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
CrossesOther
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-80 Wbl over Machinery Pass built?

It was built in 2007, making it 18 years old in 2025.

What condition is I-80 Wbl over Machinery Pass 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 Machinery Pass carry?

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

How long is I-80 Wbl over Machinery Pass?

The structure is 130 ft (39.6 m) long with a longest span of 50 ft (15.2 m) and a deck 43 ft wide.

Who owns I-80 Wbl over Machinery Pass?

It is owned by the State Highway Agency.