Gray Lake Dam
Gray Lake Dam is an earth dam located in Platte County, Missouri, built in 1965. It carries a High hazard potential classification.
About Gray Lake Dam
Gray Lake Dam is a dam in Platte, Missouri. The dam is owned by Gray Farm Inv Co (private). It impounds the Tr-brush Creek near Kansas City.
The dam stands 33 feet tall, creates a reservoir covering 8 acres, has a maximum storage capacity of 141 acre-feet, and collects water from a drainage area of 110 square miles. Completed in 1965, 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.
At 33 feet, this dam is taller than 78% 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 | Platte |
| Nearest City | Kansas City |
| River/Stream | Tr-brush Creek |
| Coordinates | 39.26756, -94.73538 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 141 acre-ft |
| Max Storage | 141 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 110 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | GRAY FARM INV CO |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO10689 |
| Federal ID | MO10689 |
| More Info | State Dam Safety Program |