Dennison RD over South Branch Macon Drain
PoorMonroe County, Michigan · 1.1 Mile North of Brewer · Structure no. 000000000007330
- Built
- 1983
- 42 years old
- Condition
- Poor
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 77 ft
- 2 main spans
- Daily traffic
- 366
- 2006 count
- Owner
- County
- County Highway Agency
About this bridge
Dennison RD over South Branch Macon Drain is a prestressed concrete box beam or girders - multiple carrying Dennison RD over South Branch Macon Drain in Monroe County, Michigan. It was built in 1983, so it is 42 years old, younger 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 366 vehicles a day, roughly 4% of them trucks, projected to reach 550 by 2026. The structure is 77 ft (23.4 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dennison RD over South Branch Macon Drain built?
It was built in 1983, making it 42 years old in 2025.
What condition is Dennison RD over South Branch Macon Drain 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 May 2024.
How much traffic does Dennison RD over South Branch Macon Drain carry?
About 366 vehicles per day (2006 count), of which roughly 4% are trucks.
How long is Dennison RD over South Branch Macon Drain?
The structure is 77 ft (23.4 m) long with a longest span of 35 ft (10.6 m) and a deck 31 ft wide.
Who owns Dennison RD over South Branch Macon Drain?
It is owned by the County Highway Agency.