Cool Valley Lake Dam
Cool Valley Lake Dam is an earth dam located in Franklin County, Missouri, built in 1962. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Cool Valley Lake Dam
The primary purpose of Cool Valley Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is private-owned. It impounds the Tyrey Creek near Morse Mill.
The dam stands 40 feet tall and stretches 400 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 220 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1962, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 07/26/2022.
At 40 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Missouri |
| County | Franklin |
| Nearest City | Morse Mill |
| River/Stream | Tyrey Creek |
| Coordinates | 38.21516, -90.81030 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 400 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 220 acre-ft |
| Max Storage | 220 acre-ft |
| Normal Storage | 211 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,311 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/26/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MO30554 |
| Federal ID | MO30554 |
| More Info | State Dam Safety Program |