Lake Montcalm RD over Flat River
FairMontcalm County, Michigan · 3.5 SW of Six Lakes · Structure no. 000000000007479
- Built
- 1997
- 28 years old
- Condition
- Fair
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 68 ft
- 1 main span
- Daily traffic
- 377
- 2003 count
- Owner
- County
- County Highway Agency
About this bridge
Lake Montcalm RD over Flat River is a prestressed concrete box beam or girders - multiple carrying Lake Montcalm RD over Flat River in Montcalm County, Michigan. It was built in 1997, so it is 28 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 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 377 vehicles a day, roughly 3% of them trucks, projected to reach 620 by 2023. The structure is 68 ft (20.7 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Lake Montcalm RD over Flat River built?
It was built in 1997, making it 28 years old in 2025.
What condition is Lake Montcalm RD over Flat 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 April 2023.
How much traffic does Lake Montcalm RD over Flat River carry?
About 377 vehicles per day (2003 count), of which roughly 3% are trucks.
How long is Lake Montcalm RD over Flat River?
The structure is 68 ft (20.7 m) long with a longest span of 64 ft (19.5 m) and a deck 33 ft wide.
Who owns Lake Montcalm RD over Flat River?
It is owned by the County Highway Agency.