US Bridges

S.H. 59 over Panther Creek

Good

McClain County, Oklahoma · 6.8 MI S. Jct. SH 39 · Structure no. 143890000000000

Built
1959
66 years old, rebuilt 2016
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
121 ft
3 main spans
Daily traffic
850
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 59 over Panther Creek is a steel stringer/multi-beam or girder carrying S.H. 59 over Panther Creek in McClain County, Oklahoma. It was built in 1959 and reconstructed in 2016, 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 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 850 vehicles a day, roughly 15% of them trucks, projected to reach 1,360 by 2042. The structure is 121 ft (36.9 m) long and 32 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

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CarriesS.H. 59
CrossesPanther Creek
Location6.8 MI S. Jct. SH 39
RouteState Highway 59
CountyMcClain County
StateOklahoma
Coordinates34.91713, -97.56486
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length121 ft (36.9 m)
Longest span40 ft (12.2 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2022)
Projected traffic1,360 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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$1.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 59 over Panther Creek built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2016.

What condition is S.H. 59 over Panther Creek 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 S.H. 59 over Panther Creek carry?

About 850 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 59 over Panther Creek?

The structure is 121 ft (36.9 m) long with a longest span of 40 ft (12.2 m) and a deck 32 ft wide.

Who owns S.H. 59 over Panther Creek?

It is owned by the State Highway Agency.