US Bridges

S.H. 51 over Evansville Creek

Fair

Adair County, Oklahoma · 2.9 MI.E.JCT.US59 · Structure no. 144790000000000

Built
1959
66 years old, rebuilt 2007
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
238 ft
3 main spans
Daily traffic
690
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 51 over Evansville Creek is a steel stringer/multi-beam or girder carrying S.H. 51 over Evansville Creek in Adair County, Oklahoma. It was built in 1959 and reconstructed in 2007, so it is 66 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 690 vehicles a day, roughly 15% of them trucks, projected to reach 1,104 by 2042. The structure is 238 ft (72.5 m) long and 30 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesS.H. 51
CrossesEvansville Creek
Location2.9 MI.E.JCT.US59
RouteState Highway 51
CountyAdair County
StateOklahoma
Coordinates35.82652, -94.57325
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.5 US tons
Inventory rating43.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3 (+1 approach)
Design loadH 20
Structure length238 ft (72.5 m)
Longest span65 ft (19.8 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic690 (2022)
Projected traffic1,104 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 51 over Evansville Creek built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2007.

What condition is S.H. 51 over Evansville Creek 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 December 2024.

How much traffic does S.H. 51 over Evansville Creek carry?

About 690 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 51 over Evansville Creek?

The structure is 238 ft (72.5 m) long with a longest span of 65 ft (19.8 m) and a deck 30 ft wide.

Who owns S.H. 51 over Evansville Creek?

It is owned by the State Highway Agency.