E1330 over Buffalo Creek

Good

McClain County, Oklahoma · 1S .3E of JCT SH76/SH74B · Structure no. 309700000000000

Built: 2018; 7 years old
Condition: Good; inspected May 2023
Type: Culvert; Concrete
Length: 36 ft; 1 main span
Daily traffic: 150; 2022 count
Owner: County; County Highway Agency

About this bridge

E1330 over Buffalo Creek is a concrete culvert carrying E1330 over Buffalo Creek in McClain County, Oklahoma. It was built in 2018, so it is 7 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 150 vehicles a day, roughly 10% of them trucks, projected to reach 240 by 2042. The structure is 36 ft (11 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesE1330

CrossesBuffalo Creek

Location1S .3E of JCT SH76/SH74B

RouteCounty Highway E1330

CountyMcClain County

StateOklahoma

Coordinates35.08778, -97.65194

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.

Component	Rating	Meaning
Channel and channel protection	8 Very Good	No problems noted.
Culvert	7 Good	Some minor problems.

Last inspectionMay 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation7: Better than present minimum criteria

Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating60 US tons

Inventory rating36 US tons

Structure

Structure typeCulvert

MaterialConcrete

DeckNot applicable

Main spans1

Design loadHS 20

Structure length36 ft (11 m)

Longest span36 ft (11 m)

Deck width30 ft (9.1 m)

Roadway width26 ft (7.9 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)

Projected traffic240 by 2042

Trucks10%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed3.7 mi (6 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 E1330 over Buffalo Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is E1330 over Buffalo 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 May 2023.

How much traffic does E1330 over Buffalo Creek carry?

About 150 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is E1330 over Buffalo Creek?

The structure is 36 ft (11 m) long with a longest span of 36 ft (11 m) and a deck 30 ft wide.

Who owns E1330 over Buffalo Creek?

It is owned by the County Highway Agency.