US Bridges

5794C over Skiatook Lake

Good

Osage County, Oklahoma · 11.0 MI SW of Avant · Structure no. 211230000000000

Built
1985
40 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
360 ft
5 main spans
Daily traffic
80
2022 count
Owner
County
County Highway Agency

About this bridge

5794C over Skiatook Lake is a prestressed concrete stringer/multi-beam or girder carrying 5794C over Skiatook Lake in Osage County, Oklahoma. It was built in 1985, so it is 40 years old, younger than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 80 vehicles a day, roughly 15% of them trucks, projected to reach 128 by 2042. The structure is 360 ft (109.7 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries5794C
CrossesSkiatook Lake
Location11.0 MI SW of Avant
RouteCounty Highway 5794C
Coordinates36.42014, -96.22251
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than 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 rating78.6 US tons
Inventory rating42.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length360 ft (109.7 m)
Longest span72 ft (21.9 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2022)
Projected traffic128 by 2042
Trucks15%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$983,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 5794C over Skiatook Lake built?

It was built in 1985, making it 40 years old in 2025.

What condition is 5794C over Skiatook Lake in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does 5794C over Skiatook Lake carry?

About 80 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 5794C over Skiatook Lake?

The structure is 360 ft (109.7 m) long with a longest span of 72 ft (21.9 m) and a deck 31 ft wide.

Who owns 5794C over Skiatook Lake?

It is owned by the County Highway Agency.