US Bridges

S.H. 51 over BNSF R.R.

Good

Logan County, Oklahoma · .1E of JCT US 77 N · Structure no. 327670000000000

Built
2023
2 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
317 ft
3 main spans
Daily traffic
1,600
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 51 over BNSF R.R. is a prestressed concrete stringer/multi-beam or girder carrying S.H. 51 over BNSF R.R. in Logan County, Oklahoma. It was built in 2023, so it is 2 years old, younger than the Oklahoma average of 47.8 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 1,600 vehicles a day, roughly 15% of them trucks, projected to reach 2,560 by 2042. The structure is 317 ft (96.5 m) long and 63 ft wide.

Location

Open in Google Maps
CarriesS.H. 51
CrossesBNSF R.R.
Location.1E of JCT US 77 N
RouteState Highway 51
CountyLogan County
StateOklahoma
Coordinates36.1152, -97.39125
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.2 US tons
Inventory rating48.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length317 ft (96.5 m)
Longest span125 ft (38.1 m)
Deck width63 ft (19.3 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2022)
Projected traffic2,560 by 2042
Trucks15%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S.H. 51 over BNSF R.R. built?

It was built in 2023, making it 2 years old in 2025.

What condition is S.H. 51 over BNSF R.R. 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 September 2024.

How much traffic does S.H. 51 over BNSF R.R. carry?

About 1,600 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 51 over BNSF R.R.?

The structure is 317 ft (96.5 m) long with a longest span of 125 ft (38.1 m) and a deck 63 ft wide.

Who owns S.H. 51 over BNSF R.R.?

It is owned by the State Highway Agency.