US Bridges

I-25 Nbl over Little Bear Creek

Fair

Laramie County, Wyoming · Cheyenne - Chugwater · Structure no. ACI

Built
1968
57 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
173 ft
3 main spans
Daily traffic
3,363
2024 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl over Little Bear Creek is a steel continuous stringer/multi-beam or girder carrying I-25 Nbl over Little Bear Creek in Laramie County, Wyoming. It was built in 1968, so it is 57 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 3,363 vehicles a day, roughly 22% of them trucks, projected to reach 4,708 by 2043. The structure is 173 ft (52.6 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-25 Nbl
CrossesLittle Bear Creek
LocationCheyenne - Chugwater
RouteInterstate 25
StateWyoming
Coordinates41.49601, -104.89765
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.1 US tons
Inventory rating33.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length173 ft (52.6 m)
Longest span66 ft (20.1 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,363 (2024)
Projected traffic4,708 by 2043
Trucks22%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-25 Nbl over Little Bear Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is I-25 Nbl over Little Bear Creek 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 March 2024.

How much traffic does I-25 Nbl over Little Bear Creek carry?

About 3,363 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is I-25 Nbl over Little Bear Creek?

The structure is 173 ft (52.6 m) long with a longest span of 66 ft (20.1 m) and a deck 41 ft wide.

Who owns I-25 Nbl over Little Bear Creek?

It is owned by the State Highway Agency.