Wellington-napoleon Watershed Dam N-21
Wellington-napoleon Watershed Dam N-21 is an earth dam located in Lafayette County, Missouri, built in 1973. It carries a Low hazard potential classification.
About Wellington-napoleon Watershed Dam N-21
The primary purpose of Wellington-napoleon Watershed Dam N-21 is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by Wlngtn-nap Wrsd Subdistr (local government). It impounds the Tr-sni-a-bar Creek near Henrietta.
The dam stands 24 feet tall and stretches 600 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 142 acre-feet, and collects water from a drainage area of 335 square miles. Completed in 1973, 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.
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Location
| State | Missouri |
| County | Lafayette |
| Nearest City | Henrietta |
| River/Stream | Tr-sni-a-bar Creek |
| Coordinates | 39.09558, -94.08489 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 23 ft |
| Dam Length | 600 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 142 acre-ft |
| Max Storage | 142 acre-ft |
| Normal Storage | 37 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 335 sq mi |
| Max Discharge | 395 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | WLNGTN-NAP WRSD SUBDISTR |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO12006 |
| Federal ID | MO12006 |
| More Info | State Dam Safety Program |