Edmunds Lake Dam
Edmunds Lake Dam is an earth dam located in Johnson County, Missouri, built in 1976. It carries a High hazard potential classification.
About Edmunds Lake Dam
The primary purpose of Edmunds Lake Dam is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Tom D Edmunds (private). It impounds the Tr-ham Br Blackwater River near Sweet Springs.
The dam stands 25 feet tall, creates a reservoir covering 3 acres, has a maximum storage capacity of 40 acre-feet, and collects water from a drainage area of 24 square miles. Completed in 1976, the structure is 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Missouri dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Missouri |
| County | Johnson |
| Nearest City | Sweet Springs |
| River/Stream | Tr-ham Br Blackwater River |
| Coordinates | 38.83791, -93.69595 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 40 acre-ft |
| Max Storage | 40 acre-ft |
| Normal Storage | 25 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 24 sq mi |
Ownership & Safety
| Purpose | Debris Control |
| Owner | TOM D EDMUNDS |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO11853 |
| Federal ID | MO11853 |
| More Info | State Dam Safety Program |