US Bridges

S.H. 56 over Creek

Good

Seminole County, Oklahoma · 2.9 MI N JCT US 270BU · Structure no. 173870000000000

Built
1969
56 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
1,900
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 1969, so it is 56 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 1,900 vehicles a day, roughly 15% of them trucks, projected to reach 3,040 by 2042. The structure is 23 ft (7 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesS.H. 56
CrossesCreek
Location2.9 MI N JCT US 270BU
RouteState Highway 56
Coordinates35.20061, -96.47932
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert8 Very GoodNo problems noted.
Last inspectionJanuary 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 geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating21.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width45 ft (13.7 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2022)
Projected traffic3,040 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$644,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 56 over Creek built?

It was built in 1969, making it 56 years old in 2025.

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 January 2024.

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

About 1,900 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 45 ft wide.

Who owns S.H. 56 over Creek?

It is owned by the State Highway Agency.