I-196 M-21 WB over Bridge ST
PoorKent County, Michigan · In Grand Rapids · Structure no. 000000000004826
- Built
- 1964
- 61 years old, rebuilt 2006
- Condition
- Poor
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 69 ft
- 1 main span
- Daily traffic
- 20,289
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
I-196 M-21 WB over Bridge ST is a steel stringer/multi-beam or girder carrying I-196 M-21 WB over Bridge ST in Kent County, Michigan. It was built in 1964 and reconstructed in 2006, so it is 61 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 20,289 vehicles a day, roughly 8% of them trucks, projected to reach 34,363 by 2018. The structure is 69 ft (21 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 4 Poor | Advanced section loss, deterioration, 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 I-196 M-21 WB over Bridge ST built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2006.
What condition is I-196 M-21 WB over Bridge ST 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 September 2024.
How much traffic does I-196 M-21 WB over Bridge ST carry?
About 20,289 vehicles per day (2007 count), of which roughly 8% are trucks.
How long is I-196 M-21 WB over Bridge ST?
The structure is 69 ft (21 m) long with a longest span of 69 ft (21 m) and a deck 55 ft wide.
Who owns I-196 M-21 WB over Bridge ST?
It is owned by the State Highway Agency.