6304C over Creek

Fair

Pottawatomie County, Oklahoma · 2 N & 3.7 W of Johnson · Structure no. 235280000000000

Built: 1993; 32 years old
Condition: Fair; inspected April 2023
Type: Culvert; Concrete
Length: 21 ft; 2 main spans
Daily traffic: 1,030; 2022 count
Owner: County; County Highway Agency

About this bridge

6304C over Creek is a concrete culvert carrying 6304C over Creek in Pottawatomie County, Oklahoma. It was built in 1993, so it is 32 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 1,030 vehicles a day, roughly 15% of them trucks, projected to reach 1,648 by 2042. The structure is 21 ft (6.3 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps

Carries6304C

CrossesCreek

Location2 N & 3.7 W of Johnson

RouteCounty Highway 6304C

CountyPottawatomie County

StateOklahoma

Coordinates35.43448, -96.90619

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.

Component	Rating	Meaning
Channel and channel protection	3 Serious	Loss of section, deterioration, spalling or scour have seriously affected primary structural components.
Culvert	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionApril 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; action required to protect exposed foundations

Structural evaluation6: Equal to present minimum criteria

Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is

Approach roadway alignment8: Equal to present desirable criteria

Operating rating73 US tons

Inventory rating43 US tons

Structure

Structure typeCulvert

MaterialConcrete

DeckNot applicable

Main spans2

Design loadHS 20

Structure length21 ft (6.3 m)

Longest span10 ft (3 m)

Deck width31 ft (9.3 m)

Roadway width28 ft (8.6 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,030 (2022)

Projected traffic1,648 by 2042

Trucks15%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed1.9 mi (3 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 6304C over Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is 6304C 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 April 2023.

How much traffic does 6304C over Creek carry?

About 1,030 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 6304C over Creek?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns 6304C over Creek?

It is owned by the County Highway Agency.