Summit Mills Dam
Summit Mills Dam is a dam located in Jackson County, Missouri. It carries a High hazard potential classification.
About Summit Mills Dam
Summit Mills Dam is a dam in Jackson, Missouri. The dam is private-owned. It impounds the Trib. Of East Fork Little Riv near Lee's Summit.
The dam stands 22 feet tall and stretches 300 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 28 acre-feet, and collects water from a drainage area of 389 square miles.
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. The most recent inspection on record was 05/19/2004. That was 21 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.
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 | Jackson |
| Nearest City | Lee's Summit |
| River/Stream | Trib. Of East Fork Little Riv |
| Coordinates | 38.91556, -94.30975 |
Physical Characteristics
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 300 ft |
Storage & Hydraulics
| NID Storage | 28 acre-ft |
| Max Storage | 28 acre-ft |
| Normal Storage | 23 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 389 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 05/19/2004 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO20807 |
| Federal ID | MO20807 |
| More Info | State Dam Safety Program |