Cowan Lake Dam West is an earth dam located in Cedar County, Missouri, built in 1959. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall, taller than 68% 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 Cowan Lake Dam West
Cowan Lake Dam West is a dam in Cedar, Missouri. The dam is owned by W.o. Cowan (private). It impounds the Tr-sac River near Osceola.
The dam stands 30 feet tall, creates a reservoir covering 6 acres, has a maximum storage capacity of 96 acre-feet, and collects water from a drainage area of 70 square miles. Completed in 1959, 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.
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Location
| State | Missouri |
| County | Cedar |
| Nearest City | Osceola |
| River/Stream | Tr-sac River |
| Coordinates | 37.84182, -93.83666 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 96 acre-ft |
| Max Storage | 96 acre-ft |
| Normal Storage | 36 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 70 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | W.o. Cowan |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO20613 |
| Federal ID | MO20613 |
| More Info | State Dam Safety Program |