Walnut Street over Portage Creek
FairKalamazoo County, Michigan · In City of Kalamazoo · Structure no. 000000000004687
- Built
- 1985
- 40 years old
- Condition
- Fair
- inspected July 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 55 ft
- 1 main span
- Daily traffic
- 4,189
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Walnut Street over Portage Creek is a prestressed concrete box beam or girders - multiple carrying Walnut Street over Portage Creek in Kalamazoo County, Michigan. It was built in 1985, so it is 40 years old, younger 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 4,189 vehicles a day, roughly 4% of them trucks, projected to reach 6,225 by 2041. The structure is 55 ft (16.7 m) long and 62 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| 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 Walnut Street over Portage Creek built?
It was built in 1985, making it 40 years old in 2025.
What condition is Walnut Street over Portage Creek 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 July 2024.
How much traffic does Walnut Street over Portage Creek carry?
About 4,189 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is Walnut Street over Portage Creek?
The structure is 55 ft (16.7 m) long with a longest span of 55 ft (16.7 m) and a deck 62 ft wide.
Who owns Walnut Street over Portage Creek?
It is owned by the City or Municipal Highway Agency.