US Bridges

S.H. 56 over Creek

Good

Seminole County, Oklahoma · 3.7 MI N JCT SH 9 · Structure no. 035060000000000

Built
1932
93 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 1932 and reconstructed in 1987, so it is 93 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 8 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 40 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesS.H. 56
CrossesCreek
Location3.7 MI N JCT SH 9
RouteState Highway 56
Coordinates35.28426, -96.45898
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.5 US tons
Inventory rating36.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width40 ft (12.2 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 1932, making it 93 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 40 ft wide.

Who owns S.H. 56 over Creek?

It is owned by the State Highway Agency.