Gruhala Lake Dam
Gruhala Lake Dam is an earth dam located in St. Francois County, Missouri, built in 1994. It carries a High hazard potential classification.
About Gruhala Lake Dam
The primary purpose of Gruhala Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Gregory & Ronda Gruhala (private). It impounds the St. Francis near Farmington.
The dam stands 23 feet tall and stretches 485 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 24 acre-feet, and collects water from a drainage area of 16 square miles. Completed in 1994, the structure is 32 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 | St. Francois |
| Nearest City | Farmington |
| River/Stream | St. Francis |
| Coordinates | 37.71063, -90.41941 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 485 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 24 acre-ft |
| Max Storage | 24 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 16 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | GREGORY & RONDA GRUHALA |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO32032 |
| Federal ID | MO32032 |
| More Info | State Dam Safety Program |