Ennis Lake RD over Madison River 032
FairMadison County, Montana · 4M E Mcallister · Structure no. L29122004+01001
- Built
- 1990
- 35 years old
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 318 ft
- 5 main spans
- Daily traffic
- 318
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Ennis Lake RD over Madison River 032 is a prestressed concrete stringer/multi-beam or girder carrying Ennis Lake RD over Madison River 032 in Madison County, Montana. It was built in 1990, so it is 35 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 318 vehicles a day, roughly 3% of them trucks, projected to reach 340 by 2043. The structure is 318 ft (96.9 m) long and 26 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 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 Ennis Lake RD over Madison River 032 built?
It was built in 1990, making it 35 years old in 2025.
What condition is Ennis Lake RD over Madison River 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 March 2024.
How much traffic does Ennis Lake RD over Madison River 032 carry?
About 318 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Ennis Lake RD over Madison River 032?
The structure is 318 ft (96.9 m) long with a longest span of 75 ft (23 m) and a deck 26 ft wide.
Who owns Ennis Lake RD over Madison River 032?
It is owned by the County Highway Agency.