Pearl Lake is an earth dam located in Hand County, South Dakota, built in 1938. It carries a Low hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 720 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Pearl Lake
The primary purpose of Pearl Lake is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Merlyn Parmely (private). It impounds the Tr-pearl Creek.
The dam stands 23 feet tall and stretches 720 feet across, and has a maximum storage capacity of 184 acre-feet. Completed in 1938, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 06/20/1995. That was over 31 years ago.
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Location
| State | South Dakota |
| County | Hand |
| Nearest City | None |
| River/Stream | Tr-pearl Creek |
| Coordinates | 44.45437, -98.90130 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 720 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 184 acre-ft |
| Max Storage | 184 acre-ft |
| Normal Storage | 86 acre-ft |
| Max Discharge | 3,600 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Merlyn Parmely |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/20/1995 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00760 |
| Federal ID | SD00760 |
| More Info | State Dam Safety Program |