US Bridges

I-180 Sbl over UPRR

Fair

Laramie County, Wyoming · Cheyenne Central Ave · Structure no. EAJ

Built
1984
41 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,821 ft
13 main spans
Daily traffic
10,397
2024 count
Owner
State
State Highway Agency

About this bridge

I-180 Sbl over UPRR is a steel continuous stringer/multi-beam or girder carrying I-180 Sbl over UPRR in Laramie County, Wyoming. It was built in 1984, so it is 41 years old, younger 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 10,397 vehicles a day, roughly 8% of them trucks, projected to reach 14,556 by 2043. The structure is 1,821 ft (555 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-180 Sbl
CrossesUPRR
LocationCheyenne Central Ave
RouteInterstate 180
CountyLaramie County
StateWyoming
Coordinates41.12821, -104.81047
Functional classUrban 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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans13
Design loadHS 20 + Mod
Structure length1,821 ft (555 m)
Longest span230 ft (70.1 m)
Deck width52 ft (15.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,397 (2024)
Projected traffic14,556 by 2043
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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-180 Sbl over UPRR built?

It was built in 1984, making it 41 years old in 2025.

What condition is I-180 Sbl over UPRR 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 April 2023.

How much traffic does I-180 Sbl over UPRR carry?

About 10,397 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is I-180 Sbl over UPRR?

The structure is 1,821 ft (555 m) long with a longest span of 230 ft (70.1 m) and a deck 52 ft wide.

Who owns I-180 Sbl over UPRR?

It is owned by the State Highway Agency.