Written by Kathy Olivarez Friday, 17 January 2014 08:00
Commissioners heard a presentation from Envirolok Vegetated Environmental Solution Services during the Tuesday meeting of the Hidalgo County Drainage District.
The company comes from Oregon and has worked in several areas of the country devising soil monitoring and detention systems for erosion control.
Specific concerns are storm water management, shoreline restoration and stabilizing riverbeds. The process can be used to prevent erosion of irrigation lines from storm water. The process involves use of bags filled with 80 percent sand and 20 percent topsoil that are stacked to form walls in areas where erosion is a problem. Native plants are planted over the bags. The plants send their roots down into the bags and soil and sand inside, forming a wall against erosion.