| Region | Facilities in Great Plains | Great Plains Home Page |
| State | Montana |
| County | Lewis and Clark |
| Project | Helena Valley Unit, Pick-Sloan Missouri Basin Program |
| Dam Type | Zoned earthfill |
| Reservoir | Helena Valley |
| Watercourse | Tenmile Creek Tributary |
| Location | Approximately 8 miles northeast of Helena, Montana and 3.5 miles west of Canyon Ferry Dam. |
| Original Construction | 1957-1958 |
| Modified Construction | 1981: Existing dam embankment modified to stabilize foundation and downstream toe. Relief wells constructed and downstream drainage channel lowered. |
| National ID Number | MT00743 |
