Pratt Dam is an earth dam located in Gentry County, Missouri, built in 1989. It carries a Low hazard potential classification.
Dam profile
NID height · 31 ft31 ft tall and 540 ft long, taller than 72% 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 Pratt Dam
The primary purpose of Pratt Dam 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 Milton Pratt (private). It impounds the Tr-walnut Fork near Darlington.
The dam stands 31 feet tall and stretches 540 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 167 acre-feet, and collects water from a drainage area of 51 square miles. Completed in 1989, the structure is 37 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 | Gentry |
| Nearest City | Darlington |
| River/Stream | Tr-walnut Fork |
| Coordinates | 40.17593, -94.51497 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 30 ft |
| Dam Length | 540 ft |
| Year Completed | 1989 (37 years old) |
Storage & Hydraulics
| NID Storage | 167 acre-ft |
| Max Storage | 167 acre-ft |
| Normal Storage | 64 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 51 sq mi |
| Max Discharge | 480 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Milton Pratt |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50121 |
| Federal ID | MO50121 |
| More Info | State Dam Safety Program |