US Bridges

68th W. Ave. over Rock Creek

Fair

Osage County, Oklahoma · 7 Miles S.W. Skiatook · Structure no. 102610000000000

Built
1945
80 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
960
2022 count
Owner
County
County Highway Agency

About this bridge

68th W. Ave. over Rock Creek is a concrete culvert carrying 68th W. Ave. over Rock Creek in Osage County, Oklahoma. It was built in 1945, so it is 80 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 960 vehicles a day, roughly 10% of them trucks, projected to reach 1,536 by 2042. The structure is 40 ft (12.2 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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Carries68th W. Ave.
CrossesRock Creek
Location7 Miles S.W. Skiatook
RouteCounty Highway N3890
CountyOsage County
StateOklahoma
Coordinates36.28793, -96.06755
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length40 ft (12.2 m)
Longest span14 ft (4.3 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic960 (2022)
Projected traffic1,536 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 68th W. Ave. over Rock Creek built?

It was built in 1945, making it 80 years old in 2025.

What condition is 68th W. Ave. over Rock 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 2024.

How much traffic does 68th W. Ave. over Rock Creek carry?

About 960 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is 68th W. Ave. over Rock Creek?

The structure is 40 ft (12.2 m) long with a longest span of 14 ft (4.3 m) and a deck 32 ft wide.

Who owns 68th W. Ave. over Rock Creek?

It is owned by the County Highway Agency.