US Bridges

IRR 1818C over Little Cabin Creek

Fair

Craig County, Oklahoma · 7.5NW of Vinita · Structure no. 258140000000000

Built
1999
26 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
263 ft
3 main spans
Daily traffic
116
2022 count
Owner
County
County Highway Agency

About this bridge

IRR 1818C over Little Cabin Creek is a prestressed concrete stringer/multi-beam or girder carrying IRR 1818C over Little Cabin Creek in Craig County, Oklahoma. It was built in 1999, so it is 26 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 116 vehicles a day, roughly 15% of them trucks, projected to reach 186 by 2042. The structure is 263 ft (80.2 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesIRR 1818C
CrossesLittle Cabin Creek
Location7.5NW of Vinita
RouteCounty Highway 1818C
Coordinates36.6996, -95.0674
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 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 alignment6: Equal to present minimum criteria
Operating rating76.7 US tons
Inventory rating37.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length263 ft (80.2 m)
Longest span100 ft (30.5 m)
Deck width36 ft (11 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic116 (2022)
Projected traffic186 by 2042
Trucks15%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$830,000
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR 1818C over Little Cabin Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is IRR 1818C over Little Cabin 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 September 2024.

How much traffic does IRR 1818C over Little Cabin Creek carry?

About 116 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is IRR 1818C over Little Cabin Creek?

The structure is 263 ft (80.2 m) long with a longest span of 100 ft (30.5 m) and a deck 36 ft wide.

Who owns IRR 1818C over Little Cabin Creek?

It is owned by the County Highway Agency.