US Bridges

S.H. 56 over Little Green Leaf Creek

Good

Okfuskee County, Oklahoma · 6.8 E of Seminole CO · Structure no. 288250000000000

Built
2007
18 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
950
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 56 over Little Green Leaf Creek is a concrete culvert carrying S.H. 56 over Little Green Leaf Creek in Okfuskee County, Oklahoma. It was built in 2007, so it is 18 years old, younger 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 950 vehicles a day, roughly 10% of them trucks, projected to reach 1,520 by 2042. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 8.1 mi (13 km).

CarriesS.H. 56
CrossesLittle Green Leaf Creek
Location6.8 E of Seminole CO
RouteState Highway 56
Coordinates35.43138, -96.33179
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic950 (2022)
Projected traffic1,520 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Little Green Leaf Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is S.H. 56 over Little Green Leaf 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 September 2023.

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

About 950 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is S.H. 56 over Little Green Leaf Creek?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m).

Who owns S.H. 56 over Little Green Leaf Creek?

It is owned by the State Highway Agency.