Selman Gp1 is an earth dam located in Harper County, Oklahoma, built in 1959. It carries a Low hazard potential classification.
Dam profile
NID height · 33 ft33 ft tall and 148 ft long, taller than 76% of U.S. dams with a recorded height. 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 Selman Gp1
Selman Gp1 is a dam in Harper, Oklahoma. The dam is owned by Commissioners of the Land Office (private). It impounds the Tr-sand Cr near Fort Supply.
The dam stands 33 feet tall and stretches 148 feet across, and has a maximum storage capacity of 60 acre-feet. Completed in 1959, 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 08/15/2011. That was over 15 years ago.
At 33 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Oklahoma |
| County | Harper |
| Nearest City | Fort Supply |
| River/Stream | Tr-sand Cr |
| Coordinates | 36.72669, -99.47100 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 148 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Normal Storage | 20 acre-ft |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | Commissioners of the Land Office |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/15/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK13244 |
| Federal ID | OK13244 |
| More Info | State Dam Safety Program |