Terrace Lake RD over N Crow Creek 021
FairLake County, Montana · 1M E Ronan · Structure no. L24308001+01001
- Built
- 1965
- 60 years old, rebuilt 2012
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 29 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Terrace Lake RD over N Crow Creek 021 is a steel stringer/multi-beam or girder carrying Terrace Lake RD over N Crow Creek 021 in Lake County, Montana. It was built in 1965 and reconstructed in 2012, so it is 60 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 29 ft (8.8 m) long and 24 ft wide. If it were closed, the detour would be 8.7 mi (14 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 Terrace Lake RD over N Crow Creek 021 built?
It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2012.
What condition is Terrace Lake RD over N Crow Creek 021 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 June 2023.
How much traffic does Terrace Lake RD over N Crow Creek 021 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Terrace Lake RD over N Crow Creek 021?
The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 24 ft wide.
Who owns Terrace Lake RD over N Crow Creek 021?
It is owned by the County Highway Agency.