Mullan RD over French Ditch
FairMissoula County, Montana · 5M W Missoula · Structure no. S00263004+05771
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 39 ft
- 1 main span
- Daily traffic
- 4,477
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Mullan RD over French Ditch is a prestressed concrete stringer/multi-beam or girder carrying Mullan RD over French Ditch in Missoula County, Montana. It was built in 1982, so it is 43 years old, younger 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 4,477 vehicles a day, projected to reach 4,701 by 2043. The structure is 39 ft (11.8 m) long and 46 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mullan RD over French Ditch built?
It was built in 1982, making it 43 years old in 2025.
What condition is Mullan RD over French Ditch 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 Mullan RD over French Ditch carry?
About 4,477 vehicles per day (2023 count).
How long is Mullan RD over French Ditch?
The structure is 39 ft (11.8 m) long with a longest span of 34 ft (10.5 m) and a deck 46 ft wide.
Who owns Mullan RD over French Ditch?
It is owned by the State Highway Agency.