Box Butte Dam
High HazardNot Available ConditionEmergency Action Plan: Yes
Location
| State | Nebraska |
| County | Dawes |
| Nearest City | DUNLAP |
| River/Stream | NIOBRARA RIVER |
| Coordinates | 42.45440, -103.07740 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 87 ft |
| Dam Height | 87 ft |
| Dam Length | 5,508 ft |
| Year Completed | 1946 (80 years old) |
Storage & Hydraulics
| NID Storage | 45,901 acre-ft |
| Max Storage | 45,901 acre-ft |
| Normal Storage | 31,060 acre-ft |
| Surface Area | 1,799 acres |
| Drainage Area | 1,460 sq mi |
| Max Discharge | 2,700 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | BUREAU OF RECLAMATION |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 09/10/2020 |
| Emergency Action Plan | Yes |