Crystal Lake Dam
Crystal Lake Dam is an earth dam located in Lincoln County, Missouri, built in 1970. It carries a High hazard potential classification.
About Crystal Lake Dam
Crystal Lake Dam is a dam in Lincoln, Missouri. The dam is owned by Crystal Lakes Estates (private). It impounds the Tr-big Creek near Chain Of Rocks.
The dam stands 20 feet tall, creates a reservoir covering 10 acres, has a maximum storage capacity of 107 acre-feet, and collects water from a drainage area of 200 square miles. Completed in 1970, 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.
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 | Lincoln |
| Nearest City | Chain Of Rocks |
| River/Stream | Tr-big Creek |
| Coordinates | 38.89059, -91.05277 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 107 acre-ft |
| Max Storage | 107 acre-ft |
| Normal Storage | 67 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 200 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | CRYSTAL LAKES ESTATES |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO10974 |
| Federal ID | MO10974 |
| More Info | State Dam Safety Program |