US Bridges

I-25 Nbl over Fish Creek

Fair

Platte County, Wyoming · Wheatland - Glendo · Structure no. AEE

Built
1966
59 years old
Condition
Fair
inspected January 2025
Type
Tee Beam
Concrete Continuous
Length
146 ft
3 main spans
Daily traffic
3,743
2024 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl over Fish Creek is a concrete continuous tee beam carrying I-25 Nbl over Fish Creek in Platte County, Wyoming. It was built in 1966, so it is 59 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 3,743 vehicles a day, roughly 23% of them trucks, projected to reach 5,240 by 2043. The structure is 146 ft (44.4 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-25 Nbl
CrossesFish Creek
LocationWheatland - Glendo
RouteInterstate 25
StateWyoming
Coordinates42.17911, -105.00205
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 inspectionJanuary 2025
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 rating52.9 US tons
Inventory rating31.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length146 ft (44.4 m)
Longest span58 ft (17.7 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,743 (2024)
Projected traffic5,240 by 2043
Trucks23%
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 Fish Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is I-25 Nbl over Fish 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 January 2025.

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

About 3,743 vehicles per day (2024 count), of which roughly 23% are trucks.

How long is I-25 Nbl over Fish Creek?

The structure is 146 ft (44.4 m) long with a longest span of 58 ft (17.7 m) and a deck 40 ft wide.

Who owns I-25 Nbl over Fish Creek?

It is owned by the State Highway Agency.