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Figure B-6 <br />~I ~ 1. <br />Flrn. di rect ton <br />1 <br />~~ <br />filter berm outlet <br />Typical Straw or Hay Bale Check Dam with Pervious Outlet <br />(Idaho 1991) <br />Semi-pervious barrier of strew bales <br />with more pervious embankment of <br />ELEVATION sand end gravel far spillway. <br />