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--- stone_outlet_protection [2022/05/16 11:31] – admin
+++ stone_outlet_protection [2025/09/30 15:18] (current) – admin
@@ Line 1: / Line 1: @@
-====== Stone Outlet Protection ======
+====== Stone Outlet Protection (Riprap) ======
-Stone outlet protection is designed to release water from management practices at non-erosive velocities.  An apron of angular stone is placed at the outlet to prevent erosion by dissipating the energy of water as it flows over.
+Stone outlet protection, or riprap, is designed to release water from management practices at non-erosive velocities.  An apron of angular stone is placed at the outlet to prevent erosion by dissipating the energy of water as it flows over.
 **Advantages**
@@ Line 59: / Line 59: @@
 |  5-20  |  0.5 x D<sub>50</sub>  |
 |  0-5  |  0.2 x D<sub>50</sub>  |
+[{{ :wiki:images:correct_riprap.jpeg?direct&600 |Correctly installed riprap at pipe outlet}}]
+[{{ :wiki:images:poorly_installed_riprap.jpeg?direct&600 |Erosion around riprap from improper shaping}}]
 =====Construction=====
@@ Line 79: / Line 83: @@
 ===References===
-  *[[https://www.nrcs.usda.gov/wps/portal/nrcs/detail/wy/technical/engineering/?cid=nrcs142p2_027269|NRCS Rock Outlet Protection Fact Sheet]]
   *[[https://efotg.sc.egov.usda.gov/api/CPSFile/31113/468_WI_CPS_Lined_Waterway_or_Outlet_2021|NRCS Conservation Practice Standard 468 - Lined Waterway or Outlet]]