An erosion control device for use on beach and land areas subject to erosion includes: (a) an elongated beam portion comprising a first wall and a first base; (b) a cross-beam portion having a length that is less than half the length of the elongated beam portion, the cross-beam portion including a second wall and a second base; and (c) a mechanism for connecting the device to a second erosion control device; wherein the cross-beam portion extends transversely through the elongated beam portion at about a mid-point of the elongated beam portion. Also included herein is a matrix of interconnectable, relatively uniform erosion control devices.