US Bridges

Wyo 450 over BNSF Railway

Good

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

Built
1979
46 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
223 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 1979, so it is 46 years old, younger 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 1,479 vehicles a day, roughly 28% of them trucks, projected to reach 2,071 by 2043. The structure is 223 ft (68 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesWyo 450
CrossesBNSF Railway
LocationNewcastle - JCT Wyo 59
RouteState Highway 450
StateWyoming
Coordinates43.70572, -105.29427
Functional classRural Minor Arterial

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.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 rating55 US tons
Inventory rating33 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length223 ft (68 m)
Longest span86 ft (26.2 m)
Deck width35 ft (10.6 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 closed98.8 mi (159 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 1979, making it 46 years old in 2025.

What condition is Wyo 450 over BNSF Railway 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 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 223 ft (68 m) long with a longest span of 86 ft (26.2 m) and a deck 35 ft wide.

Who owns Wyo 450 over BNSF Railway?

It is owned by the State Highway Agency.