Griswold No. 1
Wyoming — Niobrara County — GRISWOLD DRAW
Location
| State | Wyoming |
| County | Niobrara |
| River | GRISWOLD DRAW |
| Coordinates | 43.21278, -104.15694 |
Physical Characteristics
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 645 ft |
| NID Storage | 133 acre-ft |
| Max Storage | 133 acre-ft |
| Surface Area | 10 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Poor |
| EAP Status | Not Required |
| Last Inspection | September 28, 2023 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1954 |
| Primary Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | TETRAD CORPORATION |
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.