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--- gabion [2022/05/12 12:24] – admin
+++ gabion [2022/05/12 12:32] (current) – [Method to Determine Practice Efficiency] admin
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 ====== Gabion ======
-Gabions are rock-filled, multi-celled, PVC coated wire baskets that are placed in ponds (as an outlet structure), swales, and vegetated channels to dissipate the water’s energy.  Gabions absorb a great deal of the water’s energy by forcing water to pass through the voids in the structure, which reduces its velocity, promoting sedimentation and reducing channel erosion.
+Gabions are rock-filled, multi-celled, PVC coated wire baskets that are typically placed in ponds as outlet structures.  They absorb a great deal of the water’s energy by forcing water to pass through the voids in the structure, which reduces its velocity, promoting sedimentation and reducing channel erosion.
-This practice may be used in swales and vegetated channels that outlet to sediment traps and basins.  They are very versatile structures that may conform to a wide variety of situations and sites and may be constructed on site or purchased commercially.  As a result, materials should be selected carefully to ensure proper function and stability.
+They are very versatile structures that may conform to a wide variety of situations and sites and may be constructed on site or purchased commercially.  As a result, materials should be selected carefully to ensure proper function and stability.
 **Advantages**
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 =====Method to Determine Practice Efficiency=====
-Gabions reduce the amount of suspended sediment in stormwater by reducing the flow velocity of water.  The efficiency for this practice is determined by calculating the settling efficiency for the device from the equation below.
+Flow through the gabion will need to be calculated to determine the efficiency of the upstream pond.