US Bridges

S.H. 51 over I-44 under

Good

Tulsa County, Oklahoma · 6.6 MI E JCT US 75 · Structure no. 158500000000000

Built
1963
62 years old, rebuilt 2002
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
274 ft
6 main spans
Daily traffic
47,100
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 51 over I-44 under is a steel stringer/multi-beam or girder carrying S.H. 51 over I-44 under in Tulsa County, Oklahoma. It was built in 1963 and reconstructed in 2002, so it is 62 years old, older 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 47,100 vehicles a day, roughly 8% of them trucks, projected to reach 75,360 by 2042. The structure is 274 ft (83.4 m) long and 121 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesS.H. 51
CrossesI-44 under
Location6.6 MI E JCT US 75
RouteState Highway 51
CountyTulsa County
StateOklahoma
Coordinates36.11342, -95.89652
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.1 US tons
Inventory rating44.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length274 ft (83.4 m)
Longest span59 ft (18 m)
Deck width121 ft (37 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,100 (2022)
Projected traffic75,360 by 2042
Trucks8%
Lanes on structure8
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$7.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was S.H. 51 over I-44 under built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2002.

What condition is S.H. 51 over I-44 under 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 I-44 under carry?

About 47,100 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is S.H. 51 over I-44 under?

The structure is 274 ft (83.4 m) long with a longest span of 59 ft (18 m) and a deck 121 ft wide.

Who owns S.H. 51 over I-44 under?

It is owned by the State Highway Agency.