A hydrokinetic turbine system comprising: a frame for positioning the turbine system in a waterway; one or more turbines operatively connected to the frame; at least one bracket coupled to the frame; and a transition operatively connected to the at least one bracket, the transition comprising: a substantially flat body for spanning a distance between the frame and a portion of the waterway; a cable operatively connected to an edge of the substantially flat body, the cable for providing tension in the substantially flat body; and an anchor system for anchoring the substantially flat body within the waterway, wherein: the hydrokinetic turbine system is for harvesting hydrokinetic energy in a waterway; the frame comprises one or more side walls; the at least one bracket is coupled to the frame by coupling to a corner of the one or more side walls, wherein the at least one bracket includes a mechanism for securely receiving a pole; and the substantially flat body is a reinforced fabric-based material for spanning a distance between the frame and a portion of the waterway. a frame for positioning the turbine system in a waterway; one or more turbines operatively connected to the frame; at least one bracket coupled to the frame; and a transition operatively connected to the at least one bracket, the transition comprising: a substantially flat body for spanning a distance between the frame and a portion of the waterway; a cable operatively connected to an edge of the substantially flat body, the cable for providing tension in the substantially flat body; and an anchor system for anchoring the substantially flat body within the waterway, wherein: the hydrokinetic turbine system is for harvesting hydrokinetic energy in a waterway; the frame comprises one or more side walls; the at least one bracket is coupled to the frame by coupling to a corner of the one or more side walls, wherein the at least one bracket includes a mechanism for securely receiving a pole; and the substantially flat body is a reinforced fabric-based material for spanning a distance between the frame and a portion of the waterway. a substantially flat body for spanning a distance between the frame and a portion of the waterway; a cable operatively connected to an edge of the substantially flat body, the cable for providing tension in the substantially flat body; and an anchor system for anchoring the substantially flat body within the waterway, wherein: the hydrokinetic turbine system is for harvesting hydrokinetic energy in a waterway; the frame comprises one or more side walls; the at least one bracket is coupled to the frame by coupling to a corner of the one or more side walls, wherein the at least one bracket includes a mechanism for securely receiving a pole; and the substantially flat body is a reinforced fabric-based material for spanning a distance between the frame and a portion of the waterway. the hydrokinetic turbine system is for harvesting hydrokinetic energy in a waterway; the frame comprises one or more side walls; the at least one bracket is coupled to the frame by coupling to a corner of the one or more side walls, wherein the at least one bracket includes a mechanism for securely receiving a pole; and the substantially flat body is a reinforced fabric-based material for spanning a distance between the frame and a portion of the waterway.