US Bridges

I-25 Nbl over Chugwater Creek

Good

Platte County, Wyoming · Cheyenne - Chugwater · Structure no. ACV

Built
1969
56 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
315 ft
5 main spans
Daily traffic
3,561
2024 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl over Chugwater Creek is a steel continuous stringer/multi-beam or girder carrying I-25 Nbl over Chugwater Creek in Platte County, Wyoming. It was built in 1969, so it is 56 years old, older than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,561 vehicles a day, roughly 22% of them trucks, projected to reach 4,985 by 2043. The structure is 315 ft (96 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-25 Nbl
CrossesChugwater Creek
LocationCheyenne - Chugwater
RouteInterstate 25
StateWyoming
Coordinates41.74858, -104.83105
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 rating60.1 US tons
Inventory rating36 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length315 ft (96 m)
Longest span69 ft (21 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,561 (2024)
Projected traffic4,985 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 Chugwater Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is I-25 Nbl over Chugwater Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

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

About 3,561 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is I-25 Nbl over Chugwater Creek?

The structure is 315 ft (96 m) long with a longest span of 69 ft (21 m) and a deck 41 ft wide.

Who owns I-25 Nbl over Chugwater Creek?

It is owned by the State Highway Agency.