Mallard Way over Frenchtown Canal 100
FairMissoula County, Montana · 10M NW Missoula · Structure no. L32759000+05001
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected February 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 25 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Mallard Way over Frenchtown Canal 100 is a prestressed concrete tee beam carrying Mallard Way over Frenchtown Canal 100 in Missoula County, Montana. It was built in 1975, so it is 50 years old, older than the Montana average of 47 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 25 ft (7.6 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mallard Way over Frenchtown Canal 100 built?
It was built in 1975, making it 50 years old in 2025.
What condition is Mallard Way over Frenchtown Canal 100 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 February 2024.
How much traffic does Mallard Way over Frenchtown Canal 100 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Mallard Way over Frenchtown Canal 100?
The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 28 ft wide.
Who owns Mallard Way over Frenchtown Canal 100?
It is owned by the County Highway Agency.