US Bridges

Heaston Rd. over I-40 under

Fair

Canadian County, Oklahoma · 13.2 Mi. E. Caddo CO · Structure no. 153660000000000

Built
1961
64 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
184 ft
4 main spans
Daily traffic
265
2022 count
Owner
State
State Highway Agency

About this bridge

Heaston Rd. over I-40 under is a concrete continuous slab carrying Heaston Rd. over I-40 under in Canadian County, Oklahoma. It was built in 1961, so it is 64 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 265 vehicles a day, roughly 15% of them trucks, projected to reach 424 by 2042. The structure is 184 ft (56.1 m) long and 29 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

Location

Open in Google Maps
CarriesHeaston Rd.
CrossesI-40 under
Location13.2 Mi. E. Caddo CO
RouteCounty Highway 946C
CountyCanadian County
StateOklahoma
Coordinates35.52948, -98.07884
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.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating59 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length184 ft (56.1 m)
Longest span59 ft (18 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic265 (2022)
Projected traffic424 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed34.2 mi (55 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$1.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Heaston Rd. over I-40 under built?

It was built in 1961, making it 64 years old in 2025.

What condition is Heaston Rd. over I-40 under 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 November 2024.

How much traffic does Heaston Rd. over I-40 under carry?

About 265 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Heaston Rd. over I-40 under?

The structure is 184 ft (56.1 m) long with a longest span of 59 ft (18 m) and a deck 29 ft wide.

Who owns Heaston Rd. over I-40 under?

It is owned by the State Highway Agency.