Yankee Doodle Tailings Dam
Yankee Doodle Tailings Dam is a rockfill dam located in Silver Bow County, Montana, built in 1972. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Yankee Doodle Tailings Dam
Yankee Doodle Tailings Dam is a dam in Silver Bow, Montana. The dam is owned by Montana Resources (private). It impounds the Yankee Doodle & Silver Bow Cr near Butte.
The dam stands 570 feet tall and stretches 13,200 feet across, and has a maximum storage capacity of 7,200 acre-feet. Completed in 1972, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 02/12/2020.
At 570 feet, this dam is taller than 99% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Montana dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Montana |
| County | Silver Bow |
| Nearest City | Butte |
| River/Stream | Yankee Doodle & Silver Bow Cr |
| Coordinates | 46.01970, -112.51500 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 570 ft |
| Dam Height | 570 ft |
| Dam Length | 13,200 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 7,200 acre-ft |
| Max Storage | 7,200 acre-ft |
| Max Discharge | 502 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | MONTANA RESOURCES |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 02/12/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MT01425 |
| Federal ID | MT01425 |
| More Info | State Dam Safety Program |