City Lake Dam
City Lake Dam is an earth dam located in Cass County, Missouri, built in 1934. It carries a High hazard potential classification.
About City Lake Dam
The primary purpose of City 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 City Of Harrisonville (local government). It impounds the Town Creek near Harrisonville.
The dam stands 22 feet tall, creates a reservoir covering 21 acres, has a maximum storage capacity of 247 acre-feet, and collects water from a drainage area of 461 square miles. Completed in 1934, the structure is well-established, with more than 75 years of service.
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 04/12/1979. That was 47 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 | Cass |
| Nearest City | Harrisonville |
| River/Stream | Town Creek |
| Coordinates | 38.66361, -94.33917 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 247 acre-ft |
| Max Storage | 247 acre-ft |
| Normal Storage | 107 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 461 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF HARRISONVILLE |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 04/12/1979 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO20314 |
| Federal ID | MO20314 |
| More Info | State Dam Safety Program |