Lone Elk Lower Dam is an earth dam located in St. Louis County, Missouri, built in 1966. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 45 ft45 ft tall and 600 ft long, taller than 90% 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 Lone Elk Lower Dam
The primary purpose of Lone Elk Lower Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by St Louis County (local government). It impounds the Tr to Meramec River near Peerless Park.
The dam stands 45 feet tall and stretches 600 feet across, creates a reservoir covering 39 acres, has a maximum storage capacity of 331 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1966, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 01/18/2023.
At 45 feet, this dam is taller than 90% of dams nationwide.
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Location
| State | Missouri |
| County | St. Louis |
| Nearest City | Peerless Park |
| River/Stream | Tr to Meramec River |
| Coordinates | 38.53579, -90.54101 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 45 ft |
| Dam Length | 600 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 331 acre-ft |
| Max Storage | 331 acre-ft |
| Normal Storage | 331 acre-ft |
| Surface Area | 39 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | St Louis County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 01/18/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MO30850 |
| Federal ID | MO30850 |
| More Info | State Dam Safety Program |