Grade Lake Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Iowa |
| County | Clarke |
| Nearest City | OSCEOLA |
| River/Stream | TR-WHITEBREAST CREEK |
| Coordinates | 41.02020, -93.76950 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 44 ft |
| Dam Height | 44 ft |
| Dam Length | 1,300 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 865 acre-ft |
| Max Storage | 865 acre-ft |
| Normal Storage | 217 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Osceola |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/23/2023 |
| Emergency Action Plan | Yes |