I-75 over Conrail Raisin R Front
PoorMonroe County, Michigan · In Monroe over Front ST · Structure no. 000000000007173
- Built
- 1955
- 70 years old, rebuilt 2005
- Condition
- Poor
- inspected June 2024
- Type
- Girder and Floorbeam System
- Steel
- Length
- 930 ft
- 3 main spans
- Daily traffic
- 67,800
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
I-75 over Conrail Raisin R Front is a steel girder and floorbeam system carrying I-75 over Conrail Raisin R Front in Monroe County, Michigan. It was built in 1955 and reconstructed in 2005, so it is 70 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 67,800 vehicles a day, roughly 25% of them trucks, projected to reach 74,900 by 2039. The structure is 930 ft (283.6 m) long and 114 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-75 over Conrail Raisin R Front built?
It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2005.
What condition is I-75 over Conrail Raisin R Front in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.
How much traffic does I-75 over Conrail Raisin R Front carry?
About 67,800 vehicles per day (2019 count), of which roughly 25% are trucks.
How long is I-75 over Conrail Raisin R Front?
The structure is 930 ft (283.6 m) long with a longest span of 158 ft (48.1 m) and a deck 114 ft wide.
Who owns I-75 over Conrail Raisin R Front?
It is owned by the State Highway Agency.