Plank RD over US-23
GoodMonroe County, Michigan · 0.4 MI S of Washtenaw Col · Structure no. 000000000007086
- Built
- 1961
- 64 years old
- Condition
- Good
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 294 ft
- 4 main spans
- Daily traffic
- 770
- 1974 count
- Owner
- State
- State Highway Agency
About this bridge
Plank RD over US-23 is a steel stringer/multi-beam or girder carrying Plank RD over US-23 in Monroe County, Michigan. It was built in 1961, so it is 64 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 770 vehicles a day, projected to reach 770 by 1977. The structure is 294 ft (89.6 m) long and 35 ft wide. If it were closed, the detour would be 2.5 mi (4 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 |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Plank RD over US-23 built?
It was built in 1961, making it 64 years old in 2025.
What condition is Plank RD over US-23 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 January 2025.
How much traffic does Plank RD over US-23 carry?
About 770 vehicles per day (1974 count).
How long is Plank RD over US-23?
The structure is 294 ft (89.6 m) long with a longest span of 105 ft (32 m) and a deck 35 ft wide.
Who owns Plank RD over US-23?
It is owned by the State Highway Agency.