L. M. Hanson No is an earth dam located in Hyde County, South Dakota, built in 1953. It carries a Low hazard potential classification.
Dam profile
NID height · 12 ft12 ft tall and 535 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 L. M. Hanson No
The primary purpose of L. M. Hanson No 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 L.m. Hanson (private). It impounds the South Medicine Creek.
The dam stands 12 feet tall and stretches 535 feet across, and has a maximum storage capacity of 76 acre-feet. Completed in 1953, the structure is well into its service life at over 50 years old.
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.
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Location
| State | South Dakota |
| County | Hyde |
| Nearest City | None |
| River/Stream | South Medicine Creek |
| Coordinates | 44.49166, -99.53832 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 535 ft |
| Year Completed | 1953 (73 years old) |
Storage & Hydraulics
| NID Storage | 76 acre-ft |
| Max Storage | 76 acre-ft |
| Normal Storage | 36 acre-ft |
| Max Discharge | 660 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | L.m. Hanson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00284 |
| Federal ID | SD00284 |
| More Info | State Dam Safety Program |