Differences

This shows you the differences between two versions of the page.

--- erosion_matting [2022/05/10 16:23] – created admin
+++ erosion_matting [2025/01/07 11:15] (current) – admin
@@ Line 15: / Line 15: @@
   *Not applicable on sites where the slope is steeper than 2:1
-=====Types=====
+=====Design=====
-Erosion mats and blankets are available commercially in many varieties of materials and life spans and, depending upon the type selected, may be used above or below grade.  Traditional mats and blankets are biodegradable and may be composed of straw, wood, coconut fiber, or a combination and are held in place with netting on one or both sides of the mat.  Turf-reinforcement mats (TRMs) are permanent devices, constructed from various types of synthetic materials, which are buried below the surface to help stabilize the soil.  The life span of these devices will vary depending upon the type of netting and material used.  As a result, careful selection is crucial to the practice’s effectiveness.  A current listing of approved erosion mats is available from the Wisconsin Department of Transportation's [[http://wisconsindot.gov/Pages/doing-bus/eng-consultants/cnslt-rsrces/tools/pal/default.aspx|Product Acceptability List]].
+The 2-year design storm should be used to calculate shear stresses when selecting matting types. The {{ :dot_matting_matrices.pdf |DOT's Channel and Slope EC Matrices}} may also be used.
+====Types====
+:!: **Class 1 Type A matting is not approved for use.** :!:
+Erosion mats and blankets are available commercially in many varieties of materials and life spans and, depending upon the type selected, may be used above or below grade.  Traditional mats and blankets are biodegradable and may be composed of straw, wood, coconut fiber, or a combination and are held in place with netting on one or both sides of the mat.  Turf-reinforcement mats (TRMs) are permanent devices, constructed from various types of synthetic materials, which are buried below the surface to help stabilize the soil.  The life span of these devices will vary depending upon the type of netting and material used.  As a result, careful selection is crucial to the practice’s effectiveness. A current listing of approved erosion mats is available from the Wisconsin Department of Transportation's [[http://wisconsindot.gov/Pages/doing-bus/eng-consultants/cnslt-rsrces/tools/pal/default.aspx|Product Acceptability List]].
 =====Application and Installation=====
@@ Line 35: / Line 42: @@
 ==References==
-  *[[https://dnr.wi.gov/topic/stormWater/documents/1052NonChannelErosionMat.pdf|Wisconsin DNR Non-Channel Erosion Mat Conservation Practice Standard 1052]]
+  *[[https://dnr.wisconsin.gov/sites/default/files/topic/Stormwater/1052NonChannelErosionMat.pdf|Wisconsin DNR Non-Channel Erosion Mat Conservation Practice Standard 1052]]
-  *[[https://dnr.wi.gov/topic/stormwater/documents/1053ChannelErosionMat.pdf|Wisconsin DNR Channel Erosion Mat Conservation Practice Standard 1053]]
+  *[[https://dnr.wisconsin.gov/sites/default/files/topic/Stormwater/1053ChannelErosionMat.pdf|Wisconsin DNR Channel Erosion Mat Conservation Practice Standard 1053]]
+  *[[https://wisconsindot.gov/Pages/doing-bus/eng-consultants/cnslt-rsrces/tools/pal/default.aspx|Wisconsin DOT Erosion Control Product Acceptability List (PAL)]]