Gregory is an earth dam located in Bryan County, Oklahoma, built in 1977. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 856 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 Gregory
The primary purpose of Gregory is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Michael & Jacqueline Mcnare-maslonska (private). It impounds the Tr-blue River near Arnett Church.
The dam stands 20 feet tall and stretches 856 feet across, and has a maximum storage capacity of 85 acre-feet. Completed in 1977, the structure is 49 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 09/10/1999. That was over 27 years ago.
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Location
| State | Oklahoma |
| County | Bryan |
| Nearest City | Arnett Church |
| River/Stream | Tr-blue River |
| Coordinates | 33.99135, -96.10166 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 856 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 85 acre-ft |
| Max Storage | 85 acre-ft |
| Normal Storage | 50 acre-ft |
| Max Discharge | 394 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Michael & Jacqueline Mcnare-maslonska |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/10/1999 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK21170 |
| Federal ID | OK21170 |
| More Info | State Dam Safety Program |