US-23 over M-50
FairMonroe County, Michigan · In Dundee · Structure no. 000000000007112
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected April 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 197 ft
- 3 main spans
- Daily traffic
- 34,524
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
US-23 over M-50 is a concrete continuous tee beam carrying US-23 over M-50 in Monroe County, Michigan. It was built in 1958, so it is 67 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 34,524 vehicles a day, roughly 17% of them trucks, projected to reach 40,038 by 2018. The structure is 197 ft (60 m) long and 99 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-23 over M-50 built?
It was built in 1958, making it 67 years old in 2025.
What condition is US-23 over M-50 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 April 2023.
How much traffic does US-23 over M-50 carry?
About 34,524 vehicles per day (2007 count), of which roughly 17% are trucks.
How long is US-23 over M-50?
The structure is 197 ft (60 m) long with a longest span of 81 ft (24.7 m) and a deck 99 ft wide.
Who owns US-23 over M-50?
It is owned by the State Highway Agency.