National City RD over County Drain
GoodIosco County, Michigan · 0.01 MI N of Dyer · Structure no. 000000000004145
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected June 2024
- Type
- Culvert
- Concrete
- Length
- 22 ft
- 1 main span
- Daily traffic
- 390
- 2006 count
- Owner
- County
- County Highway Agency
About this bridge
National City RD over County Drain is a concrete culvert carrying National City RD over County Drain in Iosco County, Michigan. It was built in 2002, so it is 23 years old, younger than the Michigan average of 48.3 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 390 vehicles a day, roughly 10% of them trucks, projected to reach 700 by 2026. The structure is 22 ft (6.7 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was National City RD over County Drain built?
It was built in 2002, making it 23 years old in 2025.
What condition is National City RD over County Drain 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 June 2024.
How much traffic does National City RD over County Drain carry?
About 390 vehicles per day (2006 count), of which roughly 10% are trucks.
How long is National City RD over County Drain?
The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m).
Who owns National City RD over County Drain?
It is owned by the County Highway Agency.