N4706 (8th St.) over Drainage Ditch
GoodAdair County, Oklahoma · .5N .4W N. SH100/US59 JCT · Structure no. 271540000000000
- Built
- 1965
- 60 years old
- Condition
- Good
- inspected July 2023
- Type
- Culvert
- Concrete
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 250
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
N4706 (8th St.) over Drainage Ditch is a concrete culvert carrying N4706 (8th St.) over Drainage Ditch in Adair County, Oklahoma. It was built in 1965, so it is 60 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 250 vehicles a day, roughly 5% of them trucks, projected to reach 400 by 2042. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).
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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N4706 (8th St.) over Drainage Ditch built?
It was built in 1965, making it 60 years old in 2025.
What condition is N4706 (8th St.) over Drainage Ditch 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 July 2023.
How much traffic does N4706 (8th St.) over Drainage Ditch carry?
About 250 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is N4706 (8th St.) over Drainage Ditch?
The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).
Who owns N4706 (8th St.) over Drainage Ditch?
It is owned by the City or Municipal Highway Agency and maintained by the County Highway Agency.