Coalmine RD over Drainage 032
FairPondera County, Montana · 15M W Conrad · Structure no. L37327014+05001
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected December 2023
- Type
- Channel Beam
- Prestressed Concrete
- Length
- 24 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Coalmine RD over Drainage 032 is a prestressed concrete channel beam carrying Coalmine RD over Drainage 032 in Pondera County, Montana. It was built in 1986, so it is 39 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 24 ft (7.3 m) long and 26 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Coalmine RD over Drainage 032 built?
It was built in 1986, making it 39 years old in 2025.
What condition is Coalmine RD over Drainage 032 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 December 2023.
How much traffic does Coalmine RD over Drainage 032 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Coalmine RD over Drainage 032?
The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 26 ft wide.
Who owns Coalmine RD over Drainage 032?
It is owned by the County Highway Agency.