Echo Lake Ranch Dam is an other dam located in Jefferson County, Missouri, built in 1944. It carries a Significant hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall. 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 Echo Lake Ranch Dam
The primary purpose of Echo Lake Ranch Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mr. Bill Heady (private). It impounds the Tributary to Big River near Byrnes Mill.
The dam stands 20 feet tall, creates a reservoir covering 3 acres, has a maximum storage capacity of 60 acre-feet, and collects water from a drainage area of 300 square miles. Completed in 1944, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life.
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Location
| State | Missouri |
| County | Jefferson |
| Nearest City | Byrnes Mill |
| River/Stream | Tributary to Big River |
| Coordinates | 38.45278, -90.58211 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Year Completed | 1944 (82 years old) |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 300 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Mr. Bill Heady |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO31925 |
| Federal ID | MO31925 |
| More Info | State Dam Safety Program |