US Bridges

I-40 over Hackberry Creek

Fair

Custer County, Oklahoma · 4.2 MI NE Washita C/L · Structure no. 140640000000000

Built
1958
67 years old, rebuilt 1965
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
42 ft
3 main spans
Daily traffic
19,100
2022 count
Owner
State
State Highway Agency

About this bridge

I-40 over Hackberry Creek is a concrete culvert carrying I-40 over Hackberry Creek in Custer County, Oklahoma. It was built in 1958 and reconstructed in 1965, so it is 67 years old, older 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 19,100 vehicles a day, roughly 36% of them trucks, projected to reach 30,560 by 2042. The structure is 42 ft (12.8 m) long. If it were closed, the detour would be 14.3 mi (23 km).

CarriesI-40
CrossesHackberry Creek
Location4.2 MI NE Washita C/L
RouteInterstate 40
Coordinates35.47983, -99.0745
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,100 (2022)
Projected traffic30,560 by 2042
Trucks36%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-40 over Hackberry Creek built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1965.

What condition is I-40 over Hackberry 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 2024.

How much traffic does I-40 over Hackberry Creek carry?

About 19,100 vehicles per day (2022 count), of which roughly 36% are trucks.

How long is I-40 over Hackberry Creek?

The structure is 42 ft (12.8 m) long with a longest span of 14 ft (4.3 m).

Who owns I-40 over Hackberry Creek?

It is owned by the State Highway Agency.