US Bridges

I-180 Nbl over UPRR

Poor

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

Built
1982
43 years old
Condition
Poor
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,829 ft
13 main spans
Daily traffic
9,739
2024 count
Owner
State
State Highway Agency

About this bridge

I-180 Nbl over UPRR is a steel continuous stringer/multi-beam or girder carrying I-180 Nbl over UPRR in Laramie County, Wyoming. It was built in 1982, so it is 43 years old, younger than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 9,739 vehicles a day, roughly 9% of them trucks, projected to reach 13,635 by 2043. The structure is 1,829 ft (557.5 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 Nbl
CrossesUPRR
LocationCheyenne Central Ave
RouteInterstate 180
CountyLaramie County
StateWyoming
Coordinates41.12828, -104.81029
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
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 evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans13
Design loadHS 20 + Mod
Structure length1,829 ft (557.5 m)
Longest span227 ft (69.1 m)
Deck width52 ft (15.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,739 (2024)
Projected traffic13,635 by 2043
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-180 Nbl over UPRR built?

It was built in 1982, making it 43 years old in 2025.

What condition is I-180 Nbl over UPRR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.

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

About 9,739 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is I-180 Nbl over UPRR?

The structure is 1,829 ft (557.5 m) long with a longest span of 227 ft (69.1 m) and a deck 52 ft wide.

Who owns I-180 Nbl over UPRR?

It is owned by the State Highway Agency.