Richardson is an earth dam located in Ellis County, Oklahoma, built in 1960. It carries a Low hazard potential classification.
Dam profile
NID height · 40 ft40 ft tall and 600 ft long, taller than 86% 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 Richardson
Richardson is a dam in Ellis, Oklahoma. The dam is owned by Shrewder Trust C/o Farmers Ntl Co (private). It impounds the Tr-w Hackberry Cr near Trail.
The dam stands 40 feet tall and stretches 600 feet across, creates a reservoir covering 7 acres, and has a maximum storage capacity of 420 acre-feet. Completed in 1960, 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 12/14/2010. That was over 15 years ago.
At 40 feet, this dam is taller than 86% of dams nationwide.
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Location
| State | Oklahoma |
| County | Ellis |
| Nearest City | Trail |
| River/Stream | Tr-w Hackberry Cr |
| Coordinates | 36.00663, -99.60985 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 600 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 420 acre-ft |
| Max Storage | 420 acre-ft |
| Normal Storage | 190 acre-ft |
| Surface Area | 7 acres |
| Max Discharge | 4,150 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | Shrewder Trust C/o Farmers Ntl Co |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 12/14/2010 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK00355 |
| Federal ID | OK00355 |
| More Info | State Dam Safety Program |