US Bridges

N2843 (henderson S over Congo Creek

Fair

Grady County, Oklahoma · .3S of Idaho Ave on Hende · Structure no. 145710000000000

Built
1960
65 years old, rebuilt 2006
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
800
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

N2843 (henderson S over Congo Creek is a concrete culvert carrying N2843 (henderson S over Congo Creek in Grady County, Oklahoma. It was built in 1960 and reconstructed in 2006, so it is 65 years old, older 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 800 vehicles a day, roughly 10% of them trucks, projected to reach 1,280 by 2042. The structure is 38 ft (11.6 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesN2843 (henderson S
CrossesCongo Creek
Location.3S of Idaho Ave on Hende
RouteCity Street N2843
CountyGrady County
StateOklahoma
Coordinates35.03996, -97.92964
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width33 ft (10.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2022)
Projected traffic1,280 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 N2843 (henderson S over Congo Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2006.

What condition is N2843 (henderson S over Congo 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 February 2023.

How much traffic does N2843 (henderson S over Congo Creek carry?

About 800 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N2843 (henderson S over Congo Creek?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m) and a deck 33 ft wide.

Who owns N2843 (henderson S over Congo Creek?

It is owned by the City or Municipal Highway Agency.