Mcnab Dam
Low HazardUnsatisfactory ConditionEmergency Action Plan: Not Required
Location
| State | Montana |
| County | Valley |
| Coordinates | 48.32476, -107.21286 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 39 ft |
| Dam Length | 396 ft |
| Year Completed | 2003 (23 years old) |
Storage & Hydraulics
| NID Storage | 172 acre-ft |
| Max Storage | 172 acre-ft |
| Surface Area | 10 acres |
| Spillway Type | Controlled |
Ownership & Safety
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 08/18/2016 |
| Emergency Action Plan | Not Required |