N Sharon Road over Manistee River
FairKalkaska County, Michigan · 15 MI SE of Kalkaska · Structure no. 000000000004700
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 90 ft
- 2 main spans
- Daily traffic
- 330
- 2006 count
- Owner
- County
- County Highway Agency
About this bridge
N Sharon Road over Manistee River is a prestressed concrete box beam or girders - multiple carrying N Sharon Road over Manistee River in Kalkaska County, Michigan. It was built in 1971, so it is 54 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.
It carries about 330 vehicles a day, roughly 10% of them trucks, projected to reach 600 by 2026. The structure is 90 ft (27.4 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 7 Good | Some minor problems. |
| 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 N Sharon Road over Manistee River built?
It was built in 1971, making it 54 years old in 2025.
What condition is N Sharon Road over Manistee 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 August 2024.
How much traffic does N Sharon Road over Manistee River carry?
About 330 vehicles per day (2006 count), of which roughly 10% are trucks.
How long is N Sharon Road over Manistee River?
The structure is 90 ft (27.4 m) long with a longest span of 45 ft (13.7 m) and a deck 31 ft wide.
Who owns N Sharon Road over Manistee River?
It is owned by the County Highway Agency.