Wellington Nap A-21
Wellington Nap A-21 is an earth dam located in Lafayette County, Missouri, built in 1966. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Wellington Nap A-21
Wellington Nap A-21 is a dam in Lafayette, Missouri. The dam is owned by Lafayette Soil & Water (local government). It impounds the Tr Big Sni-a-bar Creek near Wellington.
The dam stands 52 feet tall and stretches 520 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 485 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1966, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/26/2021.
At 52 feet, this dam is taller than 93% of dams nationwide.
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Location
| State | Missouri |
| County | Lafayette |
| Nearest City | Wellington |
| River/Stream | Tr Big Sni-a-bar Creek |
| Coordinates | 39.12650, -93.99783 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 52 ft |
| Dam Height | 52 ft |
| Dam Length | 520 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 485 acre-ft |
| Max Storage | 485 acre-ft |
| Normal Storage | 343 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 3,246 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | LAFAYETTE SOIL & WATER |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/26/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MO10144 |
| Federal ID | MO10144 |
| More Info | State Dam Safety Program |