W. Cherry Creek Det. #9
W. Cherry Creek Det. #9 is an earth dam located in Douglas County, Colorado, built in 1960. It carries a Low hazard potential classification and has a fair condition assessment.
About W. Cherry Creek Det. #9
The primary purpose of W. Cherry Creek Det. #9 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 Douglas County (local government). It impounds the Elk Creek near Franktown.
The dam stands 35 feet tall and stretches 433 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 186 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1960, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 04/10/2018.
At 35 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Colorado |
| County | Douglas |
| Nearest City | Franktown |
| River/Stream | Elk Creek |
| Coordinates | 39.15223, -104.75279 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 27 ft |
| Dam Length | 433 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 186 acre-ft |
| Max Storage | 186 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 3,787 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | DOUGLAS COUNTY |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/10/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO00321 |
| Federal ID | CO00321 |
| More Info | State Dam Safety Program |