I-40 over S.H. 18 under
GoodPottawatomie County, Oklahoma · JCT SH 18 · Structure no. 244680000000000
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 239 ft
- 4 main spans
- Daily traffic
- 10,850
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-40 over S.H. 18 under is a prestressed concrete stringer/multi-beam or girder carrying I-40 over S.H. 18 under in Pottawatomie County, Oklahoma. It was built in 1997, so it is 28 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 10,850 vehicles a day, roughly 12% of them trucks, projected to reach 17,360 by 2042. The structure is 239 ft (72.8 m) long and 41 ft wide.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-40 over S.H. 18 under built?
It was built in 1997, making it 28 years old in 2025.
What condition is I-40 over S.H. 18 under 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 I-40 over S.H. 18 under carry?
About 10,850 vehicles per day (2022 count), of which roughly 12% are trucks.
How long is I-40 over S.H. 18 under?
The structure is 239 ft (72.8 m) long with a longest span of 66 ft (20.1 m) and a deck 41 ft wide.
Who owns I-40 over S.H. 18 under?
It is owned by the State Highway Agency.