Marsh RD over Drainage
FairDawson County, Montana · 1M S Glendive · Structure no. S00335001+07141
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 52 ft
- 2 main spans
- Daily traffic
- 437
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Marsh RD over Drainage is a wood or timber stringer/multi-beam or girder carrying Marsh RD over Drainage in Dawson County, Montana. It was built in 1964, so it is 61 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 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 437 vehicles a day, roughly 1% of them trucks, projected to reach 459 by 2043. The structure is 52 ft (15.7 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Marsh RD over Drainage built?
It was built in 1964, making it 61 years old in 2025.
What condition is Marsh RD over Drainage 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 September 2024.
How much traffic does Marsh RD over Drainage carry?
About 437 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is Marsh RD over Drainage?
The structure is 52 ft (15.7 m) long with a longest span of 25 ft (7.6 m) and a deck 34 ft wide.
Who owns Marsh RD over Drainage?
It is owned by the State Highway Agency.