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Feasibility Study for the Plaza Project - Phase 2: McDonald Ditch Implementation Project <br />Section 7 - Selected Alternatives <br />The stakeholders narrowed the developed alternatives and crafted a desired implementation <br />plan for each of the project elements. The stakeholders developed the implementation plans <br />with the project goals and objectives for each element in mind. <br />Figure 9. Project Elements and Deliverables - Phase 2: McDonald Ditch implementation Project <br />7.1 Selected Alternatives for the Streambanks <br />The Stakeholders determined it was critical to improve the stability of streambanks and riparian <br />vegetation in the project area. Currently, the streambanks upstream of the diversion are held in <br />place by rocks and rubble. This material pushes the flow into the middle pier of the Sevenmile <br />Plaza Bridge. Removing the rubble and stabilizing and revegetating the banks will improve flow <br />and river function. Adjacent the McDD Diversion, the streambanks are highly eroding as the <br />current diversion pushes the flow directly into the banks. The diversion angle will be altered to <br />allow the flow to bend more gradually and the streambanks will be sloped, stabilized, and <br />revegetated. Below the diversion, the streambanks will be stabilized and fish habitat structures <br />will be installed. <br />17 <br />