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One concept for accomplishing <br />these objectives: <br />• (Increase active channel area): Remove <br />wooded islands in the channel to increase <br />channel area by approximately 50 %. <br />• (Maintain the channel area): Use EA releases <br />to achieve annual peak flows of 6,000 -8,000 cfs. <br />• (Offset erosion by clear water): Move <br />approximately 500 tons of river sand per day <br />(about 70 ac -ft /year) from islands into the J -2 <br />return channel to offset ongoing erosion. <br />daptive Management Approach <br />Phase 1 <br />• Undertake some island removal for the <br />four narrowest bridge segments <br />(flexibility on location for first phase.) <br />• Begin annual EA pulse flows to clear <br />newly established vegetation. <br />• Begin sediment augmentation at J -2. <br />• Monitor effectiveness and other impacts. <br />• Evaluate effectiveness during critical <br />hydrologic events (e.g., dry periods), and <br />alter activities based on results (ARM). <br />33 <br />