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Land Use implications <br />What are the adjacent uses? To what extent does <br />the Millrace displace other uses or development <br />potential? How can the Millrace increase the value <br />of nearby properties or stimulate development? <br />What is the impact on the EWEB property, short <br />and long term? <br />Cost and Feasibility <br />What are the key technical issues, such as getting <br />under the tracks and roads? Where could a shoo- <br />fly (temporary rail bypass) be located during <br />construction? Where would the money come <br />from? How would. the project be phased? What <br />are the long term maintenance and cost implica- <br />tions. <br />This Concept Plan does not propose a specific design <br />in answer to these questions, but suggests design <br />principles to accommodate a new Millrace as this <br />district is developed. These principles have been <br />developed through the significant community partici- <br />pation and public review of the Concept Plan. <br />Principles for the New Millrace <br />1. A daylighted Millrace must bring environ- <br />mental benefits to the water flowing in the <br />Millrace to the Willamette- River. <br />Stormwater runoff from city streets and parking <br />lots flows unfiltered into the Millrace. Organic <br />materials from ducks and other wildlife add pollut- <br />ants and increase algae growth, resulting in <br />oxygen-depleted water. Daylighting the Millrace, <br />allowing more sunlight exposure, or slowing the <br />flow, such as with a wider channel, intensifies the <br />negative implications of these pollutants. <br />The new design needs to look at possibilities to <br />improve water quality both in the short and long <br />term. One possibility might include using a mixture <br />of rainwater and Millrace water in order to in- <br />crease flow and aeration. <br /> ~ <br /> ,.~ ;; <br /> . <br /> ,, <br />~--~ ~ <br />y , <br /> ~ <br /> , <br />~. <br />~~ <br /> ~ <br /> - ~~ <br /> -~ <br />-- - <br />Conceptual Millrace watershed diagram. <br />.Page 19 <br />