Perry City Dam No. 2
Perry City Dam No. 2 is an earth dam located in Ralls County, Missouri, built in 1964. It carries a High hazard potential classification.
About Perry City Dam No. 2
The primary purpose of Perry City Dam No. 2 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 Perry (local government). It impounds the Mace Branch near Perry.
The dam stands 13 feet tall, creates a reservoir covering 13 acres, has a maximum storage capacity of 90 acre-feet, and collects water from a drainage area of 1,865 square miles. Completed in 1964, the structure is well into its service life at over 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. The most recent inspection on record was 07/12/1980. That was 45 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 | Ralls |
| Nearest City | Perry |
| River/Stream | Mace Branch |
| Coordinates | 39.42263, -91.67059 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 90 acre-ft |
| Max Storage | 90 acre-ft |
| Normal Storage | 32 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 1,865 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF PERRY |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 07/12/1980 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO10980 |
| Federal ID | MO10980 |
| More Info | State Dam Safety Program |