Redrock RD over Red Rock Coulee 009
FairBlaine County, Montana · 4M NW Chinook · Structure no. L03042002+09001
- Built
- 1933
- 92 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 38 ft
- 2 main spans
- Daily traffic
- 212
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Redrock RD over Red Rock Coulee 009 is a steel continuous stringer/multi-beam or girder carrying Redrock RD over Red Rock Coulee 009 in Blaine County, Montana. It was built in 1933, so it is 92 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 212 vehicles a day, roughly 3% of them trucks, projected to reach 224 by 2043. The structure is 38 ft (11.6 m) long and 20 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 8 Very Good | No problems noted. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Redrock RD over Red Rock Coulee 009 built?
It was built in 1933, making it 92 years old in 2025.
What condition is Redrock RD over Red Rock Coulee 009 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 January 2025.
How much traffic does Redrock RD over Red Rock Coulee 009 carry?
About 212 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Redrock RD over Red Rock Coulee 009?
The structure is 38 ft (11.6 m) long with a longest span of 22 ft (6.6 m) and a deck 20 ft wide.
Who owns Redrock RD over Red Rock Coulee 009?
It is owned by the County Highway Agency.