Smith #4 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 277 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 Smith #4
Smith #4 is a dam in Harper, Oklahoma. The dam is owned by Dick Smith (private). It impounds the Sand Creek near Fort Supply.
The dam stands 33 feet tall and stretches 277 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 217 acre-feet, and collects water from a drainage area of 3 square miles. 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.
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 | Sand Creek |
| Coordinates | 36.63419, -99.42758 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 277 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 217 acre-ft |
| Max Storage | 217 acre-ft |
| Normal Storage | 48 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 3 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Dick Smith |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK83852 |
| Federal ID | OK83852 |
| More Info | State Dam Safety Program |