Capitol Lake Dam
High HazardFair ConditionEmergency Action Plan: Yes
Location
| State | South Dakota |
| County | Hughes |
| Nearest City | PIERRE |
| River/Stream | HILGERS GULCH |
| Coordinates | 44.36462, -100.34375 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 600 ft |
| Year Completed | 1921 (105 years old) |
Storage & Hydraulics
| NID Storage | 127 acre-ft |
| Max Storage | 127 acre-ft |
| Normal Storage | 65 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 2,200 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | S&PL |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 07/27/2022 |
| Emergency Action Plan | Yes |