The East Fork Above Lavon WS SCS Site 3a Dam in McKinney, Texas, stands as a crucial structure designed by the USDA NRCS in 1958 to serve primarily as a flood risk reduction measure.
Wind
Humidity
With a dam height of 48 feet and a length of 1244 feet, this earth-type dam has a storage capacity of 500 acre-feet and serves multiple purposes including irrigation and recreation. The dam overlooks the TR-Wilson Creek and is regulated by the Texas Commission on Environmental Quality (TCEQ) to ensure its safety and functionality.
Despite being under state jurisdiction and subject to regular inspections, the East Fork Above Lavon WS SCS Site 3a Dam has been deemed to be in satisfactory condition with a moderate risk assessment rating. The spillway is uncontrolled with a width of 128 feet, allowing for a maximum discharge of 3035 cubic feet per second. The dam's emergency action plan (EAP) was last revised in 2017, and while it meets guidelines, there is no inundation map prepared. Overall, this dam serves as a vital infrastructure for local government in managing water resources, reducing flood risks, and enhancing the recreational opportunities in the area.
Years Modified |
1986 - Hydraulic |
Year Completed |
1958 |
Dam Length |
1244 |
Dam Height |
48 |
River Or Stream |
TR-WILSON CREEK |
Primary Dam Type |
Earth |
Surface Area |
14.11 |
Hydraulic Height |
48 |
Drainage Area |
0.76 |
Nid Storage |
500 |
Structural Height |
48 |
Outlet Gates |
Uncontrolled - 2, Valve - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
48 |