Jeffrey No. 4 Lake Dam is an earth dam located in Dewey County, Oklahoma, built in 1978. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 186 ft long, 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 Jeffrey No. 4 Lake Dam
Jeffrey No. 4 Lake Dam is a dam in Dewey, Oklahoma. The dam is owned by Tommy Wayne Drake (private). It impounds the Gypsum Creek near Carmago.
The dam stands 30 feet tall and stretches 186 feet across, creates a reservoir covering 6 acres, and has a maximum storage capacity of 160 acre-feet. Completed in 1978, the structure is 48 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 06/10/2005. That was over 21 years ago.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Oklahoma |
| County | Dewey |
| Nearest City | Carmago |
| River/Stream | Gypsum Creek |
| Coordinates | 36.07626, -99.33911 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 186 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 160 acre-ft |
| Max Storage | 160 acre-ft |
| Normal Storage | 98 acre-ft |
| Surface Area | 6 acres |
| Max Discharge | 340 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | Tommy Wayne Drake |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/10/2005 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK20936 |
| Federal ID | OK20936 |
| More Info | State Dam Safety Program |