M-13 & M-84 over E Channel Saginaw River
PoorClosed to trafficBay County, Michigan · In Bay City (lafayette Av · Structure no. 000000000000586
- Built
- 1938
- 87 years old, rebuilt 2005
- Condition
- Poor
- inspected April 2024
- Type
- Movable - Bascule
- Steel
- Length
- 508 ft
- 1 main span
- Daily traffic
- 16,380
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
M-13 & M-84 over E Channel Saginaw River is a steel movable - bascule carrying M-13 & M-84 over E Channel Saginaw River in Bay County, Michigan. It was built in 1938 and reconstructed in 2005, so it is 87 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 3 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. Its operating status is: closed to all traffic.
It carries about 16,380 vehicles a day, roughly 3% of them trucks, projected to reach 18,837 by 2041. The structure is 508 ft (154.8 m) long and 43 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 M-13 & M-84 over E Channel Saginaw River built?
It was built in 1938, making it 87 years old in 2025. It was reconstructed in 2005.
What condition is M-13 & M-84 over E Channel Saginaw River 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 April 2024.
How much traffic does M-13 & M-84 over E Channel Saginaw River carry?
About 16,380 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is M-13 & M-84 over E Channel Saginaw River?
The structure is 508 ft (154.8 m) long with a longest span of 185 ft (56.4 m) and a deck 43 ft wide.
Who owns M-13 & M-84 over E Channel Saginaw River?
It is owned by the State Highway Agency.