Katy Lake Dam
Katy Lake Dam is an earth dam located in Callaway County, Missouri, built in 1905. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Katy Lake Dam
The primary purpose of Katy Lake Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Patricia Eicks (private). It impounds the Ewing Creek near Mokane.
The dam stands 45 feet tall and stretches 323 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 273 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1905, the structure is over a century 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/04/2022.
At 45 feet, this dam is taller than 91% of dams nationwide.
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 | Callaway |
| Nearest City | Mokane |
| River/Stream | Ewing Creek |
| Coordinates | 38.69847, -91.88798 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 44 ft |
| Dam Length | 323 ft |
| Year Completed | 1905 (121 years old) |
Storage & Hydraulics
| NID Storage | 273 acre-ft |
| Max Storage | 273 acre-ft |
| Normal Storage | 172 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 3,800 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | PATRICIA EICKS |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/04/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MO11048 |
| Federal ID | MO11048 |
| More Info | State Dam Safety Program |