US Bridges

Wilson Rock Rd. over Big Skin Bayou

Good

Sequoyah County, Oklahoma · .8E; 4.5S of Muldrow · Structure no. 296080000000000

Built
2010
15 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
228 ft
3 main spans
Daily traffic
200
2022 count
Owner
County
County Highway Agency

About this bridge

Wilson Rock Rd. over Big Skin Bayou is a prestressed concrete stringer/multi-beam or girder carrying Wilson Rock Rd. over Big Skin Bayou in Sequoyah County, Oklahoma. It was built in 2010, so it is 15 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 200 vehicles a day, roughly 10% of them trucks, projected to reach 400 by 2042. The structure is 228 ft (69.4 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesWilson Rock Rd.
CrossesBig Skin Bayou
Location.8E; 4.5S of Muldrow
RouteCounty Highway N4740
Coordinates35.34306, -94.58417
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating53 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length228 ft (69.4 m)
Longest span75 ft (22.9 m)
Deck width34 ft (10.5 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2022)
Projected traffic400 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wilson Rock Rd. over Big Skin Bayou built?

It was built in 2010, making it 15 years old in 2025.

What condition is Wilson Rock Rd. over Big Skin Bayou 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 June 2023.

How much traffic does Wilson Rock Rd. over Big Skin Bayou carry?

About 200 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Wilson Rock Rd. over Big Skin Bayou?

The structure is 228 ft (69.4 m) long with a longest span of 75 ft (22.9 m) and a deck 34 ft wide.

Who owns Wilson Rock Rd. over Big Skin Bayou?

It is owned by the County Highway Agency.