29th Street over Portage River
FairPosted for loadKalamazoo County, Michigan · 1 MI S of Indian Lake · Structure no. 000000000004625
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 50 ft
- 1 main span
- Daily traffic
- 784
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
29th Street over Portage River is a prestressed concrete box beam or girders - multiple carrying 29th Street over Portage River in Kalamazoo County, Michigan. It was built in 1962, so it is 63 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 784 vehicles a day, roughly 3% of them trucks, projected to reach 1,056 by 2039. The structure is 50 ft (15.2 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).
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 | 8 Very Good | No problems noted. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 29th Street over Portage River built?
It was built in 1962, making it 63 years old in 2025.
What condition is 29th Street over Portage River 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 October 2024.
How much traffic does 29th Street over Portage River carry?
About 784 vehicles per day (2019 count), of which roughly 3% are trucks.
How long is 29th Street over Portage River?
The structure is 50 ft (15.2 m) long with a longest span of 45 ft (13.7 m) and a deck 29 ft wide.
Who owns 29th Street over Portage River?
It is owned by the County Highway Agency.