Upper East Fk Laterals Ws Scs Site 4b Dam is an earth dam located in Rockwall County, Texas, built in 1955. It carries a High hazard potential classification and has a unsatisfactory condition assessment.
Dam profile
NID height · 40 ft40 ft tall and 1,594 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 Upper East Fk Laterals Ws Scs Site 4b Dam
The primary purpose of Upper East Fk Laterals Ws Scs Site 4b 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 Kaufman Van Zandt Rockwall Swcd;rockwall County (local government). It impounds the Tr-squabble Creek.
The dam stands 40 feet tall and stretches 1,594 feet across, creates a reservoir covering 45 acres, has a maximum storage capacity of 646 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1955, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action. An emergency action plan is in place for this dam. The most recent inspection on record was 01/19/2023.
At 40 feet, this dam is taller than 86% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Texas dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Texas |
| County | Rockwall |
| River/Stream | Tr-squabble Creek |
| Coordinates | 32.94767, -96.44982 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 1,594 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 646 acre-ft |
| Max Storage | 646 acre-ft |
| Normal Storage | 132 acre-ft |
| Surface Area | 45 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 3,466 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Kaufman Van Zandt Rockwall Swcd;rockwall County |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 01/19/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX00804 |
| Federal ID | TX00804 |
| More Info | State Dam Safety Program |