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Ordinance Exhibit D <br />DOWNTOWN RIVERFRONT <br />LAND USE COMPONENTS <br />CA 19-1, RA 19-1, Z 19-5, WG 19-3, ST 19-3, and SDR 19-2 April 19, 2019 <br />(c) All lighting fixtures shall be designed to direct light downward to areas <br />intended for human use after dark, and shall be shielded such that light <br />shining toward /WR conservation areas is minimized to the maximum <br />extent practicable. <br />All proposed lighting fixtures are designed to direct light downward to areas intended for human uses <br />after dark, as noted above, and will be shielded such that light shining toward /WR conservation areas <br />is minimized, as assured through review and approval of the Construction Permit for the Riverfront <br />Park project. <br />Accordingly, this standard is met. <br />(9) Trails. Within the /WR conservation area, trails shall be constructed of <br />gravel, wood chips or other pervious material, unless otherwise approved by <br />the city manager or decision -maker. Trail construction shall involve the least <br />removal of native vegetation practicable for the area and the minimum <br />amount of fill or excavation practicable. <br />The proposal does not involve trails within the /WR conservation area. Therefore, this standard does <br />not apply. <br />(10) Stream and Channel Crossings. Bridges or other structures that cross <br />streams or wetlands within the /WR conservation area or areas removed <br />from the /WR conservation area shall be constructed so that water flow, <br />vegetation growth and movement of aquatic animals and water dependent <br />wildlife are impeded to the least extent practicable. To meet this standard, <br />bridges and crossings shall include, but are not limited to, applicable items <br />from the following list: <br />(a) Bridges across Category A or Category B streams as identified in the <br />Goal 5 Water Resources Conservation Plan shall, where practicable, be <br />designed to avoid channel constriction when flows reach the top of high <br />bank. Where practicable, bridges shall span a distance 1.2 times the <br />width of the stream channel from top of high bank to top of high bank to <br />help prevent scouring within the structure or at the outlet during less <br />frequent floods. <br />(b) Crossings over Category A or Category B streams as identified in the <br />Goal 5 Water Resources Conservation Plan shall utilize bridges or <br />natural substrate culverts where possible. Where practicable, the lower <br />lip of any natural substrate culvert shall be embedded at least 1 foot for <br />box culverts and pipe arches, and at least 25% of the pipe diameter for <br />pipe culverts. The substrate within the structure shall match the <br />composition of the substrate in the natural stream channel at the time of <br />construction. The substrate shall either resist displacement during <br />flood events or the structure shall be designed to maintain an <br />appropriate bottom through natural bed load transport. <br />(c) Bridges and culverts on Category A or Category B streams as identified <br />in the Goal 5 Water Resources Conservation Plan shall be constructed so <br />that the "openness ratio" of the structure is equal to or greater than <br />City of Eugene FINAL SUBMITTAL 96 <br />