N Ethlyn RD 685 over Birkhead Br
GoodLincoln County, Missouri · S 18 T 49 N R 2 E · Structure no. 19929
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected April 2024
- Type
- Culvert
- Aluminum, Wrought Iron, or Cast Iron
- Length
- 28 ft
- 1 main span
- Daily traffic
- 200
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
N Ethlyn RD 685 over Birkhead Br is a aluminum, wrought iron, or cast iron culvert carrying N Ethlyn RD 685 over Birkhead Br in Lincoln County, Missouri. It was built in 1998, so it is 27 years old, younger than the Missouri average of 45.1 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 200 vehicles a day, roughly 10% of them trucks, projected to reach 320 by 2043. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 6.8 mi (11 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 N Ethlyn RD 685 over Birkhead Br built?
It was built in 1998, making it 27 years old in 2025.
What condition is N Ethlyn RD 685 over Birkhead Br 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 April 2024.
How much traffic does N Ethlyn RD 685 over Birkhead Br carry?
About 200 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is N Ethlyn RD 685 over Birkhead Br?
The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m).
Who owns N Ethlyn RD 685 over Birkhead Br?
It is owned by the County Highway Agency.