Gsdd No B-12 (gc Gs 4) is an earth dam located in Atchison County, Kansas, built in 2002. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 750 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 Gsdd No B-12 (gc Gs 4)
The primary purpose of Gsdd No B-12 (gc Gs 4) is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Delaware Wjd No 10 (local government). It impounds the Grasshopper Creek-tr.
The dam stands 25 feet tall and stretches 750 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 381 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 2002, the structure is relatively new.
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 08/20/2002. That was over 24 years ago.
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Location
| State | Kansas |
| County | Atchison |
| River/Stream | Grasshopper Creek-tr |
| Coordinates | 39.58945, -95.39486 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 750 ft |
| Year Completed | 2002 (24 years old) |
Storage & Hydraulics
| NID Storage | 381 acre-ft |
| Max Storage | 381 acre-ft |
| Normal Storage | 56 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,327 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Debris Control |
| Owner | Delaware Wjd No 10 |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/20/2002 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | KS09167 |
| Federal ID | KS09167 |
| More Info | State Dam Safety Program |