Letterman Lake Dam
Letterman Lake Dam is an earth dam located in Montgomery County, Missouri, built in 1976. It carries a Low hazard potential classification.
About Letterman Lake Dam
The primary purpose of Letterman Lake Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by D L Letterman (private). It impounds the Tr-white Oak Creek near Moscow Mills.
The dam stands 20 feet tall and stretches 1,150 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 163 acre-feet, and collects water from a drainage area of 244 square miles. Completed in 1976, the structure is 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 | Montgomery |
| Nearest City | Moscow Mills |
| River/Stream | Tr-white Oak Creek |
| Coordinates | 39.07944, -91.54611 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 19 ft |
| Dam Length | 1,150 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 163 acre-ft |
| Max Storage | 163 acre-ft |
| Normal Storage | 95 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 244 sq mi |
| Max Discharge | 221 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | D L LETTERMAN |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO11368 |
| Federal ID | MO11368 |
| More Info | State Dam Safety Program |