S.H. 56 over Creek

Good

Seminole County, Oklahoma · 2.6 MI N JCT SH 9 · Structure no. 005350000000000

Built: 1918; 107 years old, rebuilt 1987
Condition: Good; inspected February 2024
Type: Culvert; Concrete
Length: 23 ft; 2 main spans
Daily traffic: 1,300; 2022 count
Owner: State; State Highway Agency

About this bridge

S.H. 56 over Creek is a concrete culvert carrying S.H. 56 over Creek in Seminole County, Oklahoma. It was built in 1918 and reconstructed in 1987, so it is 107 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 1,300 vehicles a day, roughly 15% of them trucks, projected to reach 2,080 by 2042. The structure is 23 ft (7 m) long and 50 ft wide. If it were closed, the detour would be 28 mi (45 km).

Location

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CarriesS.H. 56

CrossesCreek

Location2.6 MI N JCT SH 9

RouteState Highway 56

CountySeminole County

StateOklahoma

Coordinates35.26902, -96.45894

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.

Component	Rating	Meaning
Channel and channel protection	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert	7 Good	Some minor problems.

Last inspectionFebruary 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation7: Better than present minimum criteria

Deck geometry7: Better than present minimum criteria

Waterway adequacy6: Equal to present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating60 US tons

Inventory rating36 US tons

Structure

Structure typeCulvert

MaterialConcrete

DeckNot applicable

Main spans2

Design loadH 20

Structure length23 ft (7 m)

Longest span10 ft (3 m)

Deck width50 ft (15.2 m)

Roadway width40 ft (12.2 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2022)

Projected traffic2,080 by 2042

Trucks15%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed28 mi (45 km)

TollOn a free road

National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency

Maintained byState Highway Agency

Historic statusHistorical significance not determinable at this time

Work proposedReplacement because of substandard load-carrying capacity or roadway geometry

Estimated improvement cost$644,000

NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 56 over Creek built?

It was built in 1918, making it 107 years old in 2025. It was reconstructed in 1987.

What condition is S.H. 56 over 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 February 2024.

How much traffic does S.H. 56 over Creek carry?

About 1,300 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 56 over Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 50 ft wide.

Who owns S.H. 56 over Creek?

It is owned by the State Highway Agency.