US Bridges

Ok St. Hwy. 10 over Copan L Caney R Splwy

Fair

Washington County, Oklahoma · 2.5 Mi. W. of Copan · Structure no. CEPSWTOKCOPANSP

Built
1978
47 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
232 ft
4 main spans
Daily traffic
660
2023 count
Owner
Federal
Corps of Engineers (Civil)

About this bridge

Ok St. Hwy. 10 over Copan L Caney R Splwy is a steel stringer/multi-beam or girder carrying Ok St. Hwy. 10 over Copan L Caney R Splwy in Washington County, Oklahoma. It was built in 1978, so it is 47 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 660 vehicles a day, roughly 3% of them trucks, projected to reach 805 by 2043. The structure is 232 ft (70.7 m) long and 36 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesOk St. Hwy. 10
CrossesCopan L Caney R Splwy
Location2.5 Mi. W. of Copan
RouteState Highway 10
CountyWashington County
StateOklahoma
Coordinates36.88561, -95.97458
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating34.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length232 ft (70.7 m)
Longest span51 ft (15.6 m)
Deck width36 ft (10.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic660 (2023)
Projected traffic805 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRelief for waterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCorps of Engineers (Civil)
Maintained byCorps of Engineers (Civil)
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$3 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ok St. Hwy. 10 over Copan L Caney R Splwy built?

It was built in 1978, making it 47 years old in 2025.

What condition is Ok St. Hwy. 10 over Copan L Caney R Splwy 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 Ok St. Hwy. 10 over Copan L Caney R Splwy carry?

About 660 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Ok St. Hwy. 10 over Copan L Caney R Splwy?

The structure is 232 ft (70.7 m) long with a longest span of 51 ft (15.6 m) and a deck 36 ft wide.

Who owns Ok St. Hwy. 10 over Copan L Caney R Splwy?

It is owned by the Corps of Engineers (Civil).