Lyman Number 4
Lyman Number 4 is an earth dam located in Jones County, South Dakota, built in 1957. It carries a Low hazard potential classification.
About Lyman Number 4
The primary purpose of Lyman Number 4 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 Lyn Lyman (private). It impounds the Tr-bad River near Bone.
The dam stands 27 feet tall and stretches 339 feet across, and has a maximum storage capacity of 54 acre-feet. Completed in 1957, 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | South Dakota |
| County | Jones |
| Nearest City | Bone |
| River/Stream | Tr-bad River |
| Coordinates | 44.01166, -100.87666 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 339 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 54 acre-ft |
| Max Storage | 54 acre-ft |
| Normal Storage | 33 acre-ft |
| Max Discharge | 504 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | LYN LYMAN |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01647 |
| Federal ID | SD01647 |
| More Info | State Dam Safety Program |