US Bridges

I-90 Ebl over Wyo 585

Good

Crook County, Wyoming · Sundance Marginal · Structure no. BJH

Built
1972
53 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
215 ft
3 main spans
Daily traffic
2,981
2024 count
Owner
State
State Highway Agency

About this bridge

I-90 Ebl over Wyo 585 is a steel continuous stringer/multi-beam or girder carrying I-90 Ebl over Wyo 585 in Crook County, Wyoming. It was built in 1972, so it is 53 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 2,981 vehicles a day, roughly 19% of them trucks, projected to reach 4,173 by 2043. The structure is 215 ft (65.5 m) long and 45 ft wide.

CarriesI-90 Ebl
CrossesWyo 585
LocationSundance Marginal
RouteInterstate 90
StateWyoming
Coordinates44.40148, -104.36633
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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.5 US tons
Inventory rating33.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length215 ft (65.5 m)
Longest span83 ft (25.3 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic2,981 (2024)
Projected traffic4,173 by 2043
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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-90 Ebl over Wyo 585 built?

It was built in 1972, making it 53 years old in 2025.

What condition is I-90 Ebl over Wyo 585 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-90 Ebl over Wyo 585 carry?

About 2,981 vehicles per day (2024 count), of which roughly 19% are trucks.

How long is I-90 Ebl over Wyo 585?

The structure is 215 ft (65.5 m) long with a longest span of 83 ft (25.3 m) and a deck 45 ft wide.

Who owns I-90 Ebl over Wyo 585?

It is owned by the State Highway Agency.