Nelson Dam No. 1
Nelson Dam No. 1 is an earth dam located in Clay County, Missouri, built in 1994. It carries a Low hazard potential classification.
About Nelson Dam No. 1
The primary purpose of Nelson Dam No. 1 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 David Nelson (private). It impounds the Tr-carroll Creek near Mosby.
The dam stands 32 feet tall and stretches 610 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 94 acre-feet, and collects water from a drainage area of 480 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.
At 32 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Missouri |
| County | Clay |
| Nearest City | Mosby |
| River/Stream | Tr-carroll Creek |
| Coordinates | 39.39541, -94.30321 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 610 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 94 acre-ft |
| Max Storage | 94 acre-ft |
| Normal Storage | 57 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 480 sq mi |
| Max Discharge | 194 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | DAVID NELSON |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50143 |
| Federal ID | MO50143 |
| More Info | State Dam Safety Program |