Johnson Don is an earth dam located in Kingfisher County, Oklahoma, built in 1965. It carries a Low hazard potential classification.
Dam profile
NID height · 24 ft24 ft tall and 660 ft long. 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 Johnson Don
Johnson Don is a dam in Kingfisher, Oklahoma. The dam is owned by Don Johnson (private). It impounds the Tr-cow Cr near Cashion.
The dam stands 24 feet tall and stretches 660 feet across, creates a reservoir covering 7 acres, and has a maximum storage capacity of 100 acre-feet. Completed in 1965, 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. The most recent inspection on record was 01/19/2010. That was over 16 years ago.
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Location
| State | Oklahoma |
| County | Kingfisher |
| Nearest City | Cashion |
| River/Stream | Tr-cow Cr |
| Coordinates | 35.77921, -97.69455 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 660 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 7 acres |
| Max Discharge | 3,800 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | Don Johnson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 01/19/2010 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK20688 |
| Federal ID | OK20688 |
| More Info | State Dam Safety Program |