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<br />. <br /> <br />. <br /> <br />Analysis <br />1. Navigability. The chute is easy to locate from a boat upstream of the <br />drop due to two large signal rocks on each side of the entrance. <br />Warning signs have also been installed. <br /> <br />The chute is easily navigable by all levels of boaters and many levels <br />of river flow. It has "standing" waves, no "keeper" waves. Large <br />eddies are located downstream of the drop. <br /> <br />2. <br /> <br />Rescue Compatibility. <br />the base of the drop, <br />the right bank. <br /> <br />Rescue is made easier by the large, slow pool at <br />but access is hampered by the concrete wall on <br /> <br />3. Cost and Ease of Construction. Relatively easy. Concrete cap on sheet <br />pile would not be needed if concrete wall was used as opposed to sheet <br />piles. <br /> <br />Grouted rock is more expensive, but stable. <br /> <br />4. Appearance. Due to the large granite boulders along the chute and the <br />whitewater standing waves, the chute is reasonably attractive, given <br />its location between 4-lane highways. <br /> <br />5. Operation and Maintenance. The chute is wide enough so no debris <br />collected with chute. The small riprap on the downstream face of the <br />remainder of the dam is washing away. <br /> <br />6. stability. The chute is stable. <br />washing away. <br /> <br />The small (ungrouted) riprap is <br /> <br /> <br />other <br />Fish migration is easy. <br /> <br />~R...El~' ,. , <br />,-,. . . . " \\ <br />, '~-.' ".> ., -'~ L " . H~. ,J i..~ ",;_ ) r: <br /> <br />J ,.. ~~d~~ji~i I <br />