US Bridges

I-80 Wbl over Machinery Pass

Good

Albany County, Wyoming · Rawlins - Laramie · Structure no. AWI

Built
1968
57 years old
Condition
Good
inspected May 2024
Type
Tee Beam
Concrete Continuous
Length
76 ft
3 main spans
Daily traffic
6,587
2024 count
Owner
State
State Highway Agency

About this bridge

I-80 Wbl over Machinery Pass is a concrete continuous tee beam carrying I-80 Wbl over Machinery Pass in Albany County, Wyoming. It was built in 1968, so it is 57 years old, older 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 6,587 vehicles a day, roughly 56% of them trucks, projected to reach 9,222 by 2043. The structure is 76 ft (23.2 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-80 Wbl
CrossesMachinery Pass
LocationRawlins - Laramie
RouteInterstate 80
StateWyoming
Coordinates41.45262, -105.97305
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.6 US tons
Inventory rating31.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length76 ft (23.2 m)
Longest span31 ft (9.4 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,587 (2024)
Projected traffic9,222 by 2043
Trucks56%
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 statusHistorical significance not determinable at this time
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 1968, making it 57 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 May 2024.

How much traffic does I-80 Wbl over Machinery Pass carry?

About 6,587 vehicles per day (2024 count), of which roughly 56% are trucks.

How long is I-80 Wbl over Machinery Pass?

The structure is 76 ft (23.2 m) long with a longest span of 31 ft (9.4 m) and a deck 41 ft wide.

Who owns I-80 Wbl over Machinery Pass?

It is owned by the State Highway Agency.