US Bridges

I-25 Service Road over Dugout Creek

Fair

Natrona County, Wyoming · Wyo 387 JCT - Buffalo · Structure no. AJI

Built
1957
68 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
156 ft
6 main spans
Daily traffic
302
2024 count
Owner
State
State Highway Agency

About this bridge

I-25 Service Road over Dugout Creek is a concrete continuous slab carrying I-25 Service Road over Dugout Creek in Natrona County, Wyoming. It was built in 1957, so it is 68 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 302 vehicles a day, roughly 7% of them trucks, projected to reach 423 by 2043. The structure is 156 ft (47.5 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-25 Service Road
CrossesDugout Creek
LocationWyo 387 JCT - Buffalo
CountyNatrona County
StateWyoming
Coordinates43.47747, -106.41141
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.5 US tons
Inventory rating33.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length156 ft (47.5 m)
Longest span27 ft (8.2 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic302 (2024)
Projected traffic423 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Service Road over Dugout Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is I-25 Service Road over Dugout 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 2023.

How much traffic does I-25 Service Road over Dugout Creek carry?

About 302 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is I-25 Service Road over Dugout Creek?

The structure is 156 ft (47.5 m) long with a longest span of 27 ft (8.2 m) and a deck 35 ft wide.

Who owns I-25 Service Road over Dugout Creek?

It is owned by the State Highway Agency.