20 Dam
Low HazardPoor ConditionEmergency Action Plan: Not Required
Location
| State | Montana |
| County | Custer |
| Coordinates | 46.26389, -106.00281 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 29 ft |
| Dam Length | 333 ft |
| Year Completed | 2003 (23 years old) |
Storage & Hydraulics
| NID Storage | 112 acre-ft |
| Max Storage | 112 acre-ft |
| Surface Area | 14 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 07/24/2020 |
| Emergency Action Plan | Not Required |