Turtle Lake (upper) is an earth dam located in Cleveland County, Oklahoma, built in 2003. It carries a Low hazard potential classification.
Dam profile
NID height · 18 ft18 ft tall and 290 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 Turtle Lake (upper)
Turtle Lake (upper) is a dam in Cleveland, Oklahoma. The dam is owned by Darryl and Pamela K Umphries (private). It impounds the Trib North Fork Little River near Moore.
The dam stands 18 feet tall and stretches 290 feet across, creates a reservoir covering 112 acres, has a maximum storage capacity of 66 acre-feet, and collects water from a drainage area of 112 square miles. Completed in 2003, the structure is relatively new.
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 12/01/2010. That was over 15 years ago.
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Location
| State | Oklahoma |
| County | Cleveland |
| Nearest City | Moore |
| River/Stream | Trib North Fork Little River |
| Coordinates | 35.31653, -97.42804 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 290 ft |
| Year Completed | 2003 (23 years old) |
Storage & Hydraulics
| NID Storage | 66 acre-ft |
| Max Storage | 66 acre-ft |
| Normal Storage | 42 acre-ft |
| Surface Area | 112 acres |
| Drainage Area | 112 sq mi |
| Max Discharge | 720 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | Darryl and Pamela K Umphries |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 12/01/2010 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK30152 |
| Federal ID | OK30152 |
| More Info | State Dam Safety Program |