An erosion control device is described. A walled elongated core member is
disclosed having a first open end, a second end, an interior space and one
or more openings in the wall communicating the interior space with the
exterior of the core member. An outer filter member surrounds the core
member. One or both the first and second ends of the core member can be
open. One or both of the open ends can comprise couplers or connectors for
connecting one core member to one or two complimentary core members. The
core member may comprise a flexible plastic pipe, such as high-density
polyethylene pipe having a plurality of perforations.