Gs Dd No 25-21 is an earth dam located in Brown County, Kansas, built in 1994. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 650 ft long, taller than 50% of U.S. dams with a recorded height. 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 Gs Dd No 25-21
The primary purpose of Gs Dd No 25-21 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 Nemaha-brown Wjd No 7 (local government). It impounds the Plum Creek-tr near Netawaka.
The dam stands 25 feet tall and stretches 650 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 154 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1994, the structure is 32 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. The most recent inspection on record was 01/24/1995. That was over 31 years ago.
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Location
| State | Kansas |
| County | Brown |
| Nearest City | Netawaka |
| River/Stream | Plum Creek-tr |
| Coordinates | 39.77520, -95.74864 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 650 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 154 acre-ft |
| Max Storage | 154 acre-ft |
| Normal Storage | 47 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 500 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Nemaha-brown Wjd No 7 |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 01/24/1995 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | KS09173 |
| Federal ID | KS09173 |
| More Info | State Dam Safety Program |