US Bridges

6946C over Creek

Fair

Stephens County, Oklahoma · 7.4 MI W 1.0 N Duncan · Structure no. 215140000000000

Built
1987
38 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
43 ft
4 main spans
Daily traffic
314
2022 count
Owner
County
County Highway Agency

About this bridge

6946C over Creek is a concrete culvert carrying 6946C over Creek in Stephens County, Oklahoma. It was built in 1987, so it is 38 years old, younger than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 314 vehicles a day, roughly 15% of them trucks, projected to reach 502 by 2042. The structure is 43 ft (13.1 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries6946C
CrossesCreek
Location7.4 MI W 1.0 N Duncan
RouteCounty Highway 6946C
Coordinates34.52157, -98.097
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.4 US tons
Inventory rating24.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span10 ft (3 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic314 (2022)
Projected traffic502 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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 6946C over Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is 6946C over Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does 6946C over Creek carry?

About 314 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 6946C over Creek?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m) and a deck 34 ft wide.

Who owns 6946C over Creek?

It is owned by the County Highway Agency.