Gary Cook is an earth dam located in Bollinger County, Missouri, built in 1997. It carries a Low hazard potential classification.
Dam profile
NID height · 38 ft38 ft tall and 434 ft long, taller than 84% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Gary Cook
The primary purpose of Gary Cook is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Gary Cook (private). It impounds the Cedar Branch near Marble Hill.
The dam stands 38 feet tall and stretches 434 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 132 acre-feet, and collects water from a drainage area of 172 square miles. Completed in 1997, the structure is 29 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. The most recent inspection on record was 11/01/1999. That was over 26 years ago.
At 38 feet, this dam is taller than 84% of dams nationwide.
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Location
| State | Missouri |
| County | Bollinger |
| Nearest City | Marble Hill |
| River/Stream | Cedar Branch |
| Coordinates | 37.49279, -89.96187 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 31 ft |
| Dam Length | 434 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 132 acre-ft |
| Max Storage | 132 acre-ft |
| Normal Storage | 90 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 172 sq mi |
| Max Discharge | 21 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Gary Cook |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/01/1999 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50445 |
| Federal ID | MO50445 |
| More Info | State Dam Safety Program |