US Bridges

6385C over N. Canadian River

Poor

Pottawatomie County, Oklahoma · .7S & 1W of Garden Grove · Structure no. 216830000000000

Built
1987
38 years old
Condition
Poor
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
242 ft
3 main spans
Daily traffic
1,090
2022 count
Owner
County
County Highway Agency

About this bridge

6385C over N. Canadian River is a prestressed concrete stringer/multi-beam or girder carrying 6385C over N. Canadian River in Pottawatomie 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,090 vehicles a day, roughly 15% of them trucks, projected to reach 1,744 by 2042. The structure is 242 ft (73.9 m) long and 29 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Carries6385C
CrossesN. Canadian River
Location.7S & 1W of Garden Grove
RouteCounty Highway 6385C
Coordinates35.41082, -96.78903
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103.9 US tons
Inventory rating53 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length242 ft (73.9 m)
Longest span80 ft (24.4 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,090 (2022)
Projected traffic1,744 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$690,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 6385C over N. Canadian River built?

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

What condition is 6385C over N. Canadian River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.

How much traffic does 6385C over N. Canadian River carry?

About 1,090 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 6385C over N. Canadian River?

The structure is 242 ft (73.9 m) long with a longest span of 80 ft (24.4 m) and a deck 29 ft wide.

Who owns 6385C over N. Canadian River?

It is owned by the County Highway Agency.