US Bridges

S.H. 71 over Unnamed Creek

Good

Pittsburg County, Oklahoma · 2.83 N of JCT S.H. 31 · Structure no. 314720000000000

Built
2017
8 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
94 ft
2 main spans
Daily traffic
2,100
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 71 over Unnamed Creek is a concrete culvert carrying S.H. 71 over Unnamed Creek in Pittsburg County, Oklahoma. It was built in 2017, so it is 8 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 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 2,100 vehicles a day, roughly 15% of them trucks, projected to reach 3,360 by 2042. The structure is 94 ft (28.7 m) long and 94 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

Location

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CarriesS.H. 71
CrossesUnnamed Creek
Location2.83 N of JCT S.H. 31
RouteState Highway 71
CountyPittsburg County
StateOklahoma
Coordinates35.15611, -95.39361
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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating47.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length94 ft (28.7 m)
Longest span16 ft (4.9 m)
Deck width94 ft (28.7 m)
Roadway width92 ft (28 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,100 (2022)
Projected traffic3,360 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S.H. 71 over Unnamed Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is S.H. 71 over Unnamed 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. 71 over Unnamed Creek carry?

About 2,100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 71 over Unnamed Creek?

The structure is 94 ft (28.7 m) long with a longest span of 16 ft (4.9 m) and a deck 94 ft wide.

Who owns S.H. 71 over Unnamed Creek?

It is owned by the State Highway Agency.