Sediment Pond 4a is a rockfill dam located in Linn County, Kansas. It carries a Low hazard potential classification.
Dam profile
NID height · 9 ft9 ft tall and 800 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic rockfill embankment section and the water level is illustrative.
About Sediment Pond 4a
The primary purpose of Sediment Pond 4a is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Pittsburg & Midway Coal Mining Co (private).
The dam stands 9 feet tall and stretches 800 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 334 acre-feet, and collects water from a drainage area of 0 square miles.
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 | Kansas |
| County | Linn |
| Nearest City | Pleasanton |
| Coordinates | 38.25673, -94.61597 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 800 ft |
Storage & Hydraulics
| NID Storage | 334 acre-ft |
| Max Storage | 334 acre-ft |
| Normal Storage | 149 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 341 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Pittsburg & Midway Coal Mining Co |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | KS07349 |
| Federal ID | KS07349 |
| More Info | State Dam Safety Program |