Johnston Dam
Iowa — Jasper County — TR-TURNER CREEK
Location
| State | Iowa |
| County | Jasper |
| River | TR-TURNER CREEK |
| Coordinates | 41.69620, -92.80280 |
Physical Characteristics
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 527 ft |
| NID Storage | 193 acre-ft |
| Max Storage | 193 acre-ft |
| Surface Area | 11 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Not Rated |
| EAP Status | Not Required |
| Last Inspection | — |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 2005 |
| Primary Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | James E Johnston |
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.