US Bridges

US 310 over BNSF Railway

Good

Big Horn County, Wyoming · Lovell - Deaver · Structure no. MJO

Built
2019
6 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
280 ft
3 main spans
Daily traffic
2,247
2024 count
Owner
State
State Highway Agency

About this bridge

US 310 over BNSF Railway is a steel continuous stringer/multi-beam or girder carrying US 310 over BNSF Railway in Big Horn County, Wyoming. It was built in 2019, so it is 6 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 2,247 vehicles a day, roughly 10% of them trucks, projected to reach 3,146 by 2043. The structure is 280 ft (85.3 m) long and 40 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesUS 310
CrossesBNSF Railway
LocationLovell - Deaver
RouteU.S. Route 310
CountyBig Horn County
StateWyoming
Coordinates44.84931, -108.44481
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
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 alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length280 ft (85.3 m)
Longest span111 ft (33.8 m)
Deck width40 ft (12.3 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,247 (2024)
Projected traffic3,146 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemYes

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 US 310 over BNSF Railway built?

It was built in 2019, making it 6 years old in 2025.

What condition is US 310 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 2023.

How much traffic does US 310 over BNSF Railway carry?

About 2,247 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is US 310 over BNSF Railway?

The structure is 280 ft (85.3 m) long with a longest span of 111 ft (33.8 m) and a deck 40 ft wide.

Who owns US 310 over BNSF Railway?

It is owned by the State Highway Agency.