Richmond School Lake Dam
Richmond School Lake Dam is an earth dam located in Ray County, Missouri, built in 1962. It carries a Low hazard potential classification.
About Richmond School Lake Dam
The primary purpose of Richmond School Lake 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 Richmond School (private). It impounds the Tr-willow Creek near Henrietta.
The dam stands 26 feet tall and stretches 470 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 118 acre-feet, and collects water from a drainage area of 155 square miles. Completed in 1962, 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 | Ray |
| Nearest City | Henrietta |
| River/Stream | Tr-willow Creek |
| Coordinates | 39.26710, -93.97682 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 25 ft |
| Dam Length | 470 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 118 acre-ft |
| Max Storage | 118 acre-ft |
| Normal Storage | 72 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 155 sq mi |
| Max Discharge | 144 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | RICHMOND SCHOOL |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50429 |
| Federal ID | MO50429 |
| More Info | State Dam Safety Program |