Cross
Cross is an earth dam located in Sanders County, Montana, built in 1963. It carries a Low hazard potential classification.
About Cross
The primary purpose of Cross is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Cameroot Ranch (private). It impounds the Tr-camas Creek near Perma.
The dam stands 10 feet tall and stretches 370 feet across, has a maximum storage capacity of 77 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1963, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Montana |
| County | Sanders |
| Nearest City | Perma |
| River/Stream | Tr-camas Creek |
| Coordinates | 47.52620, -114.59121 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 370 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 77 acre-ft |
| Max Storage | 77 acre-ft |
| Normal Storage | 40 acre-ft |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | CAMEROOT RANCH |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT01217 |
| Federal ID | MT01217 |
| More Info | State Dam Safety Program |