Sister Grove Creek Ws Scs Site 18 Dam is an earth dam located in Grayson County, Texas, built in 1958. It carries a Low hazard potential classification.
Dam profile
NID height · 45 ft45 ft tall and 2,400 ft long, taller than 90% 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 Sister Grove Creek Ws Scs Site 18 Dam
The primary purpose of Sister Grove Creek Ws Scs Site 18 Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Grayson County;upper Elm Red Swcd (local government). It impounds the West Sister Grove Creek.
The dam stands 45 feet tall and stretches 2,400 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 717 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1958, 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 45 feet, this dam is taller than 90% of dams nationwide.
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Location
| State | Texas |
| County | Grayson |
| River/Stream | West Sister Grove Creek |
| Coordinates | 33.50032, -96.58780 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 45 ft |
| Dam Length | 2,400 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 717 acre-ft |
| Max Storage | 717 acre-ft |
| Normal Storage | 136 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Grayson County;upper Elm Red Swcd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX02099 |
| Federal ID | TX02099 |
| More Info | State Dam Safety Program |