Dejong Bros 11
Dejong Bros 11 is an earth dam located in Lyman County, South Dakota, built in 1962. It carries a Low hazard potential classification.
About Dejong Bros 11
The primary purpose of Dejong Bros 11 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 Dejong Bros (private). It impounds the Trib-white River.
The dam stands 25 feet tall and stretches 182 feet across, and has a maximum storage capacity of 25 acre-feet. Completed in 1962, 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 | Lyman |
| River/Stream | Trib-white River |
| Coordinates | 43.75333, -99.77666 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 182 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 25 acre-ft |
| Max Storage | 25 acre-ft |
| Normal Storage | 7 acre-ft |
| Max Discharge | 672 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | DEJONG BROS |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01183 |
| Federal ID | SD01183 |
| More Info | State Dam Safety Program |