US Bridges

I-25 Sbl over UPRR / US 30

Poor

Laramie County, Wyoming · Cheyenne Marginal · Structure no. AAW

Built
1963
62 years old
Condition
Poor
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
355 ft
4 main spans
Daily traffic
11,014
2024 count
Owner
State
State Highway Agency

About this bridge

I-25 Sbl over UPRR / US 30 is a steel continuous stringer/multi-beam or girder carrying I-25 Sbl over UPRR / US 30 in Laramie County, Wyoming. It was built in 1963, so it is 62 years old, older 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 11,014 vehicles a day, roughly 18% of them trucks, projected to reach 15,420 by 2043. The structure is 355 ft (108.2 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-25 Sbl
CrossesUPRR / US 30
LocationCheyenne Marginal
RouteInterstate 25
CountyLaramie County
StateWyoming
Coordinates41.11761, -104.8511
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.6 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length355 ft (108.2 m)
Longest span113 ft (34.4 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic11,014 (2024)
Projected traffic15,420 by 2043
Trucks18%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and railroad
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-25 Sbl over UPRR / US 30 built?

It was built in 1963, making it 62 years old in 2025.

What condition is I-25 Sbl over UPRR / US 30 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 February 2025.

How much traffic does I-25 Sbl over UPRR / US 30 carry?

About 11,014 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is I-25 Sbl over UPRR / US 30?

The structure is 355 ft (108.2 m) long with a longest span of 113 ft (34.4 m) and a deck 45 ft wide.

Who owns I-25 Sbl over UPRR / US 30?

It is owned by the State Highway Agency.