County Road 321 over Charley Creek 015
GoodRichland County, Montana · 53M NW Sidney · Structure no. L42017008+01001
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected November 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 76 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
County Road 321 over Charley Creek 015 is a prestressed concrete tee beam carrying County Road 321 over Charley Creek 015 in Richland County, Montana. It was built in 1998, so it is 27 years old, younger 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 76 ft (23.1 m) long and 30 ft wide. If it were closed, the detour would be 18 mi (29 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County Road 321 over Charley Creek 015 built?
It was built in 1998, making it 27 years old in 2025.
What condition is County Road 321 over Charley Creek 015 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 November 2023.
How much traffic does County Road 321 over Charley Creek 015 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is County Road 321 over Charley Creek 015?
The structure is 76 ft (23.1 m) long with a longest span of 72 ft (21.8 m) and a deck 30 ft wide.
Who owns County Road 321 over Charley Creek 015?
It is owned by the County Highway Agency.