Grindstone L-m-c Site A-2
Grindstone L-m-c Site A-2 is an earth dam located in DeKalb County, Missouri, built in 1990. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Grindstone L-m-c Site A-2
The primary purpose of Grindstone L-m-c Site A-2 is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Grindstone L-m-c Wtr Sd (local government). It impounds the Grindstone.
The dam stands 53 feet tall and stretches 1,700 feet across, creates a reservoir covering 177 acres, has a maximum storage capacity of 3,274 acre-feet, and collects water from a drainage area of 20 square miles. Completed in 1990, the structure is 36 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 03/01/2023.
At 53 feet, this dam is taller than 94% of dams nationwide.
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Location
| State | Missouri |
| County | DeKalb |
| River/Stream | Grindstone |
| Coordinates | 39.77515, -94.29486 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 53 ft |
| Dam Height | 53 ft |
| Dam Length | 1,700 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 3,274 acre-ft |
| Max Storage | 3,274 acre-ft |
| Normal Storage | 3,274 acre-ft |
| Surface Area | 177 acres |
| Drainage Area | 20 sq mi |
| Max Discharge | 16,242 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | GRINDSTONE L-M-C WTR SD |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/01/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MO12228 |
| Federal ID | MO12228 |
| More Info | State Dam Safety Program |