Fordyce Lake Dam is an earth dam located in Harrison County, Missouri, built in 1974. It carries a Low hazard potential classification.
Dam profile
NID height · 32 ft32 ft tall, taller than 74% 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 Fordyce Lake Dam
The primary purpose of Fordyce Lake Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Max Fordyce (private). It impounds the Tr-trail Creek near Mount Moriah.
The dam stands 32 feet tall, creates a reservoir covering 3 acres, has a maximum storage capacity of 51 acre-feet, and collects water from a drainage area of 90 square miles. Completed in 1974, 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 | Harrison |
| Nearest City | Mount Moriah |
| River/Stream | Tr-trail Creek |
| Coordinates | 40.30667, -93.90814 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 51 acre-ft |
| Max Storage | 51 acre-ft |
| Normal Storage | 26 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 90 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Max Fordyce |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO11955 |
| Federal ID | MO11955 |
| More Info | State Dam Safety Program |