US Bridges

5776C over Happy Hollow Creek

Fair

Osage County, Oklahoma · 3 N. & 4 W. of Wynona · Structure no. 147430000000000

Built
1960
65 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

5776C over Happy Hollow Creek is a concrete culvert carrying 5776C over Happy Hollow Creek in Osage County, Oklahoma. It was built in 1960, 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 50 vehicles a day, roughly 15% of them trucks, projected to reach 80 by 2042. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
Carries5776C
CrossesHappy Hollow Creek
Location3 N. & 4 W. of Wynona
RouteCounty Highway 5776C
CountyOsage County
StateOklahoma
Coordinates36.54848, -96.40628
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.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating53 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 5776C over Happy Hollow Creek built?

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

What condition is 5776C over Happy Hollow 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 2024.

How much traffic does 5776C over Happy Hollow Creek carry?

About 50 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 5776C over Happy Hollow Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns 5776C over Happy Hollow Creek?

It is owned by the County Highway Agency.