Erosion control blankets are usually woven from a chosen material and are meant to slow down the speed at which water moves across the surface. The material chosen is usually something with lots of ridges and obstructions for the water to slow down on. There are many different types of erosion control blankets, some synthetic and some natural. There are even a few that are both synthetic and natural. These blankets can be made out of straw, coconut fiber, aspen fiber, jute, and polypropylene (plastic). Most of these blankets are available in many sizes. Common ones are 80 to 100 square yards. Most of these are rolled up and cut into widths ranging from 3 to 8 feet wide.

Straw Wattles

Straw Wattles are another type of erosion control device. These are usually made of the same materials used in erosion control blankets but are rolled into large diameter "logs." These logs can be made to just about any diameter and are usually incased in some kind of netting sewing into the desired shape. The purpose of these logs is to pull up and slow down water long enough for any sediment that is in the water to settle out. The three major materials used in fiber rolls are coconut fiber, rice wattle and wheat wattle. The concept behind the fiber roll is the same regardless of the material. 


                                   Silt Fencing

Silt fence is a temporary sediment control device used on construction sites to protect water quality from sediment in runoff.  Trinity's silt fence consists of a synthetic filter fabric with 4x4 or 4x2 wire backing which gives the fence increased strength to resist the weight of soil and water and also discourage construction site operators from driving vehicles over the fence.