Carpenter RD over US-23
FairWashtenaw County, Michigan · 1.2 MI N of Monroe Col · Structure no. 000000000010891
- Built
- 1962
- 63 years old, rebuilt 1998
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 351 ft
- 4 main spans
- Daily traffic
- 2,525
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Carpenter RD over US-23 is a steel stringer/multi-beam or girder carrying Carpenter RD over US-23 in Washtenaw County, Michigan. It was built in 1962 and reconstructed in 1998, so it is 63 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 2,525 vehicles a day, roughly 8% of them trucks, projected to reach 3,025 by 2040. The structure is 351 ft (107 m) long and 44 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Carpenter RD over US-23 built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1998.
What condition is Carpenter RD over US-23 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2024.
How much traffic does Carpenter RD over US-23 carry?
About 2,525 vehicles per day (2020 count), of which roughly 8% are trucks.
How long is Carpenter RD over US-23?
The structure is 351 ft (107 m) long with a longest span of 128 ft (39.1 m) and a deck 44 ft wide.
Who owns Carpenter RD over US-23?
It is owned by the State Highway Agency.