Allyn Dam
Nebraska — Holt County — TR-NIOBRARA RIVER
Location
| State | Nebraska |
| County | Holt |
| River | TR-NIOBRARA RIVER |
| Coordinates | 42.84467, -99.10074 |
Physical Characteristics
| NID Height | 30 ft |
| Dam Height | 25 ft |
| Dam Length | 1,042 ft |
| NID Storage | 138 acre-ft |
| Max Storage | 138 acre-ft |
| Surface Area | 8 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Poor |
| EAP Status | Not Required |
| Last Inspection | May 18, 2023 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1968 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | Holt County |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.