John Groendyke
John Groendyke is an earth dam located in Garfield County, Oklahoma, built in 1960. It carries a Low hazard potential classification.
About John Groendyke
The primary purpose of John Groendyke 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 Boyd W Freeman (private). It impounds the Tr-sand Cr near Kremlin.
The dam stands 20 feet tall and stretches 350 feet across, and has a maximum storage capacity of 150 acre-feet. 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. The most recent inspection on record was 12/14/2010. That was over 15 years ago.
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Location
| State | Oklahoma |
| County | Garfield |
| Nearest City | Kremlin |
| River/Stream | Tr-sand Cr |
| Coordinates | 36.48242, -97.88995 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 350 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 150 acre-ft |
| Max Storage | 150 acre-ft |
| Normal Storage | 100 acre-ft |
| Max Discharge | 2,204 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | BOYD W FREEMAN |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 12/14/2010 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK13226 |
| Federal ID | OK13226 |
| More Info | State Dam Safety Program |