US Bridges

Wyo 253 over I-25

Fair

Natrona County, Wyoming · Casper Marginal · Structure no. CSE

Built
1968
57 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
316 ft
3 main spans
Daily traffic
4,190
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 253 over I-25 is a steel continuous stringer/multi-beam or girder carrying Wyo 253 over I-25 in Natrona 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 4,190 vehicles a day, roughly 4% of them trucks, projected to reach 5,866 by 2043. The structure is 316 ft (96.3 m) long and 90 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesWyo 253
CrossesI-25
LocationCasper Marginal
RouteState Highway 253
CountyNatrona County
StateWyoming
Coordinates42.84504, -106.21718
Functional classRural Minor Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating38.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length316 ft (96.3 m)
Longest span104 ft (31.7 m)
Deck width90 ft (27.3 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,190 (2024)
Projected traffic5,866 by 2043
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed6.2 mi (10 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Wyo 253 over I-25 built?

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

What condition is Wyo 253 over I-25 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 April 2023.

How much traffic does Wyo 253 over I-25 carry?

About 4,190 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Wyo 253 over I-25?

The structure is 316 ft (96.3 m) long with a longest span of 104 ft (31.7 m) and a deck 90 ft wide.

Who owns Wyo 253 over I-25?

It is owned by the State Highway Agency.