Laserfiche WebLink
Chapter 4-Site-Specific /ndusbia/ Storm Water BMPs • <br />Temporary Seeding <br />What Is It <br />Temporary seeding means growing a short-term vegetative cover (plants) on disturbed site areas <br />that may be in danger of erosion. The purpose of temporary seeding is to reduce erosion and <br />sedimentation by stabilizing disturbed areas that will not be stabilized for long periods of time or <br />where permanent plant growth is not necessary or appropriate. This practice uses fast-growing <br />grasses whose root systems hold down the soils so that they are less apt to be carried offsite by <br />storm water runoff or wind. Temporary seeding also reduces the problems associated with mud <br />and dust from bare soil surfaces during construction. <br />?I .? <br />y? <br />1. Hydro-seeding <br />2. Standard Seeding <br />3. Hand Seeding or <br />Broadcast Seeding <br />FIGURE 4.14 SEEDING PRACTICES <br />(Modified from Washington State, 1992) <br />When and Where to Use It <br />Temporary seeding should be performed on areas which have been disturbed by construction and <br />which are likely to be redisturbed, but not for several weeks or more. Typical areas might include <br />denuded areas, soil stockpiles, dikes, dams, sides of sediment basins, and temporary roadbanks. <br />Temporary seeding should take place as soon as practicable after the last land disturbing activity in <br />an area. Check the requirements of your permit for the maximum amount of time allowed between <br />the last disturbance of an area and temporary stabilization. Temporary seeding may not be an <br />• <br />0 <br />• <br />4-62