1306C over Creek

Good

Cimarron County, Oklahoma · 3.7W of 1360C · Structure no. 183650000000000

Built: 1973; 52 years old
Condition: Good; inspected October 2023
Type: Culvert; Concrete
Length: 22 ft; 2 main spans
Daily traffic: 24; 2022 count
Owner: County; County Highway Agency

About this bridge

1306C over Creek is a concrete culvert carrying 1306C over Creek in Cimarron County, Oklahoma. It was built in 1973, so it is 52 years old, older 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 24 vehicles a day, roughly 15% of them trucks, projected to reach 38 by 2042. The structure is 22 ft (6.7 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

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Carries1306C

CrossesCreek

Location3.7W of 1360C

RouteCounty Highway 1306C

CountyCimarron County

StateOklahoma

Coordinates36.89267, -102.31125

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.

Component	Rating	Meaning
Channel and channel protection	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert	7 Good	Some minor problems.

Last inspectionOctober 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour within limits of footing or piles

Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is

Deck geometry7: Better than present minimum criteria

Waterway adequacy6: Equal to present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating36 US tons

Inventory rating21.1 US tons

Structure

Structure typeCulvert

MaterialConcrete

DeckNot applicable

Main spans2

Design loadHS 20

Structure length22 ft (6.7 m)

Longest span10 ft (3 m)

Deck width32 ft (9.9 m)

Roadway width30 ft (9.1 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2022)

Projected traffic38 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 1306C over Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is 1306C over Creek 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 October 2023.

How much traffic does 1306C over Creek carry?

About 24 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 1306C over Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 32 ft wide.

Who owns 1306C over Creek?

It is owned by the County Highway Agency.