Cotner D.d.
Cotner D.d. is an earth dam located in Creek County, Oklahoma, built in 1970. It carries a Low hazard potential classification.
About Cotner D.d.
The primary purpose of Cotner D.d. is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Jim Harbeston (private). It impounds the Tr-polecat Creek near Sapulpa.
The dam stands 30 feet tall and stretches 630 feet across, and has a maximum storage capacity of 90 acre-feet. Completed in 1970, 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 08/30/2011. That was over 14 years ago.
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Location
| State | Oklahoma |
| County | Creek |
| Nearest City | Sapulpa |
| River/Stream | Tr-polecat Creek |
| Coordinates | 35.91327, -96.09544 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 630 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 90 acre-ft |
| Max Storage | 90 acre-ft |
| Normal Storage | 40 acre-ft |
| Max Discharge | 2,700 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | JIM HARBESTON |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 08/30/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK12712 |
| Federal ID | OK12712 |
| More Info | State Dam Safety Program |