Voldseth East Dam
Voldseth East Dam is an earth dam located in Meagher County, Montana, built in 1939. It carries a High hazard potential classification and has a fair condition assessment.
About Voldseth East Dam
The primary purpose of Voldseth East Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by David A Voldseth (private). It impounds the Tr-south Fork Musselsheel Ri. near Martinsdale.
The dam stands 24 feet tall and stretches 1,150 feet across, creates a reservoir covering 108 acres, has a maximum storage capacity of 1,925 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1939, the structure is well-established, with more than 75 years of service.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 05/27/2020.
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 | Meagher |
| Nearest City | Martinsdale |
| River/Stream | Tr-south Fork Musselsheel Ri. |
| Coordinates | 46.38730, -110.49920 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 1,150 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 1,925 acre-ft |
| Max Storage | 1,925 acre-ft |
| Normal Storage | 1,188 acre-ft |
| Surface Area | 108 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 100 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | DAVID A VOLDSETH |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 05/27/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MT01590 |
| Federal ID | MT01153S001 |
| More Info | State Dam Safety Program |