US Bridges

Wyo 450 over BNSF Railway

Fair

Campbell County, Wyoming · Newcastle - JCT Wyo 59 · Structure no. DKO

Built
1980
45 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
194 ft
3 main spans
Daily traffic
1,479
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 450 over BNSF Railway is a steel continuous stringer/multi-beam or girder carrying Wyo 450 over BNSF Railway in Campbell County, Wyoming. It was built in 1980, so it is 45 years old, younger 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 1,479 vehicles a day, roughly 28% of them trucks, projected to reach 2,071 by 2043. The structure is 194 ft (59.1 m) long and 34 ft wide. If it were closed, the detour would be 83.9 mi (135 km).

Location

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CarriesWyo 450
CrossesBNSF Railway
LocationNewcastle - JCT Wyo 59
RouteState Highway 450
CountyCampbell County
StateWyoming
Coordinates43.72326, -105.36079
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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating63.1 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length194 ft (59.1 m)
Longest span74 ft (22.6 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,479 (2024)
Projected traffic2,071 by 2043
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed83.9 mi (135 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 450 over BNSF Railway built?

It was built in 1980, making it 45 years old in 2025.

What condition is Wyo 450 over BNSF Railway 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 July 2024.

How much traffic does Wyo 450 over BNSF Railway carry?

About 1,479 vehicles per day (2024 count), of which roughly 28% are trucks.

How long is Wyo 450 over BNSF Railway?

The structure is 194 ft (59.1 m) long with a longest span of 74 ft (22.6 m) and a deck 34 ft wide.

Who owns Wyo 450 over BNSF Railway?

It is owned by the State Highway Agency.