Lower River RD over Elk Creek 100
GoodSanders County, Montana · 1M E Heron · Structure no. L45036003+01001
- Built
- 1976
- 49 years old
- Condition
- Good
- inspected June 2024
- Type
- Channel Beam
- Prestressed Concrete
- Length
- 42 ft
- 1 main span
- Daily traffic
- 66
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Lower River RD over Elk Creek 100 is a prestressed concrete channel beam carrying Lower River RD over Elk Creek 100 in Sanders County, Montana. It was built in 1976, so it is 49 years old, older than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 66 vehicles a day, roughly 3% of them trucks, projected to reach 71 by 2043. The structure is 42 ft (12.8 m) long and 20 ft wide. If it were closed, the detour would be 8.1 mi (13 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Lower River RD over Elk Creek 100 built?
It was built in 1976, making it 49 years old in 2025.
What condition is Lower River RD over Elk Creek 100 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.
How much traffic does Lower River RD over Elk Creek 100 carry?
About 66 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Lower River RD over Elk Creek 100?
The structure is 42 ft (12.8 m) long with a longest span of 41 ft (12.5 m) and a deck 20 ft wide.
Who owns Lower River RD over Elk Creek 100?
It is owned by the County Highway Agency.