US Bridges

I-90 Ebl over SH CR 121 (gulch Road)

Fair

Sheridan County, Wyoming · Sheridan Marginal · Structure no. BBP

Built
1961
64 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
94 ft
3 main spans
Daily traffic
4,937
2024 count
Owner
State
State Highway Agency

About this bridge

I-90 Ebl over SH CR 121 (gulch Road) is a concrete continuous slab carrying I-90 Ebl over SH CR 121 (gulch Road) in Sheridan County, Wyoming. It was built in 1961, so it is 64 years old, older 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 4,937 vehicles a day, roughly 14% of them trucks, projected to reach 6,912 by 2043. The structure is 94 ft (28.5 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-90 Ebl
CrossesSH CR 121 (gulch Road)
LocationSheridan Marginal
RouteInterstate 90
CountySheridan County
StateWyoming
Coordinates44.82142, -106.94212
Functional classRural Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.8 US tons
Inventory rating30.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length94 ft (28.5 m)
Longest span35 ft (10.7 m)
Deck width43 ft (13.1 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,937 (2024)
Projected traffic6,912 by 2043
Trucks14%
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 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 SH CR 121 (gulch Road) built?

It was built in 1961, making it 64 years old in 2025.

What condition is I-90 Ebl over SH CR 121 (gulch Road) 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 2023.

How much traffic does I-90 Ebl over SH CR 121 (gulch Road) carry?

About 4,937 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is I-90 Ebl over SH CR 121 (gulch Road)?

The structure is 94 ft (28.5 m) long with a longest span of 35 ft (10.7 m) and a deck 43 ft wide.

Who owns I-90 Ebl over SH CR 121 (gulch Road)?

It is owned by the State Highway Agency.