Deerfield Dam
High HazardNot Available ConditionEmergency Action Plan: Yes
Location
| State | South Dakota |
| County | Pennington |
| Nearest City | RAPID CITY |
| River/Stream | CASTLE CREEK |
| Coordinates | 44.02920, -103.78530 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 171 ft |
| Dam Height | 171 ft |
| Dam Length | 825 ft |
| Year Completed | 1947 (79 years old) |
Storage & Hydraulics
| NID Storage | 42,310 acre-ft |
| Max Storage | 42,310 acre-ft |
| Normal Storage | 15,655 acre-ft |
| Surface Area | 423 acres |
| Drainage Area | 92 sq mi |
| Max Discharge | 103,400 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | BUREAU OF RECLAMATION |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 05/03/2023 |
| Emergency Action Plan | Yes |