Nance Dam is an earth dam located in DeKalb County, Missouri, built in 1968. It carries a Low hazard potential classification.
Dam profile
NID height · 26 ft26 ft tall and 500 ft long, taller than 55% 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 Nance Dam
The primary purpose of Nance Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Marion Nance (private). It impounds the Tr-grindstone Creek near Santa Rosa.
The dam stands 26 feet tall and stretches 500 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 135 acre-feet, and collects water from a drainage area of 273 square miles. Completed in 1968, 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 | DeKalb |
| Nearest City | Santa Rosa |
| River/Stream | Tr-grindstone Creek |
| Coordinates | 40.01269, -94.25741 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 500 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 135 acre-ft |
| Max Storage | 135 acre-ft |
| Normal Storage | 85 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 273 sq mi |
| Max Discharge | 84 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Marion Nance |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO10326 |
| Federal ID | MO10326 |
| More Info | State Dam Safety Program |