Ambrose
High HazardPoor ConditionEmergency Action Plan: Yes
Location
| State | South Dakota |
| County | Hyde |
| Nearest City | Stephan |
| River/Stream | West Fork Elm Creek |
| Coordinates | 44.24966, -99.45297 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 800 ft |
| Year Completed | 1935 (91 years old) |
Storage & Hydraulics
| NID Storage | 670 acre-ft |
| Max Storage | 670 acre-ft |
| Normal Storage | 220 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 21 sq mi |
| Max Discharge | 1,060 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | BIA |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 08/04/2020 |
| Emergency Action Plan | Yes |