J. O. Hill is an earth dam located in Douglas County, Colorado, built in 1964. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 44 ft44 ft tall and 530 ft long, taller than 89% 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 J. O. Hill
The primary purpose of J. O. Hill is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Westcreek Lakes Water Dist. (private). It impounds the West Creek near Deckers.
The dam stands 44 feet tall and stretches 530 feet across, creates a reservoir covering 18 acres, has a maximum storage capacity of 253 acre-feet, and collects water from a drainage area of 56 square miles. Completed in 1964, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 05/07/2021.
At 44 feet, this dam is taller than 89% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Colorado |
| County | Douglas |
| Nearest City | Deckers |
| River/Stream | West Creek |
| Coordinates | 39.14557, -105.16001 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 44 ft |
| Dam Height | 29 ft |
| Dam Length | 530 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 253 acre-ft |
| Max Storage | 253 acre-ft |
| Normal Storage | 154 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 56 sq mi |
| Max Discharge | 3,960 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | Westcreek Lakes Water Dist. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/07/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO00295 |
| Federal ID | CO00295 |
| More Info | State Dam Safety Program |