Rockwall-forney Dam
Rockwall-forney Dam is an earth dam located in Kaufman County, Texas, built in 1969. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Rockwall-forney Dam
The primary purpose of Rockwall-forney Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Dallas (local government). It impounds the East Fork Trinity River near Seagoville.
The dam stands 68 feet tall and stretches 12,500 feet across, creates a reservoir covering 22,745 acres, has a maximum storage capacity of 575,040 acre-feet, and collects water from a drainage area of 1,071 square miles. Completed in 1969, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 09/08/2021.
At 68 feet, this dam is taller than 96% of all dams in the United States.
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 | Kaufman |
| Nearest City | Seagoville |
| River/Stream | East Fork Trinity River |
| Coordinates | 32.80167, -96.50667 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 68 ft |
| Dam Height | 68 ft |
| Dam Length | 12,500 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 575,040 acre-ft |
| Max Storage | 575,040 acre-ft |
| Normal Storage | 452,040 acre-ft |
| Surface Area | 22,745 acres |
| Drainage Area | 1,071 sq mi |
| Max Discharge | 375,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF DALLAS |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/08/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX00837 |
| Federal ID | TX00837 |
| More Info | State Dam Safety Program |