US Bridges

IRR N3260 over Skinny Creek

Fair

Noble County, Oklahoma · .2N 1.W .4N of Redrock · Structure no. 231340000000000

Built
1992
33 years old
Condition
Fair
inspected August 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

IRR N3260 over Skinny Creek is a prestressed concrete stringer/multi-beam or girder carrying IRR N3260 over Skinny Creek in Noble County, Oklahoma. It was built in 1992, so it is 33 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 77 ft (23.5 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIRR N3260
CrossesSkinny Creek
Location.2N 1.W .4N of Redrock
RouteCounty Highway N3260
Coordinates36.47003, -97.19314
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating39 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length77 ft (23.5 m)
Longest span75 ft (22.9 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$442,000
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR N3260 over Skinny Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is IRR N3260 over Skinny 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 August 2022.

How much traffic does IRR N3260 over Skinny Creek carry?

About 50 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is IRR N3260 over Skinny Creek?

The structure is 77 ft (23.5 m) long with a longest span of 75 ft (22.9 m) and a deck 28 ft wide.

Who owns IRR N3260 over Skinny Creek?

It is owned by the County Highway Agency.