Item A: Abatement of Noise Pollution

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ATTACHMENT C Eugene Code (c) Bridges and culverts shall be constructed so that there is at least 3 feet of clearance between the ordinary high water mark and the underside of the bridge or culvert. (d) The lower lip of any culvert shall meet the stream or channel bed at grade. (e) Culverts shall be the minimum length practicable. (15) Lighting. Area lighting shall be aimed away from resource areas where possible, and otherwise must be aimed such that light shining on natural resource areas is minimized to the maximum extent practicable. Area lighting is outdoor lighting designed to illuminate an activity area, trail or bicycle path, and shall also comply with EC 9.4830. (16) Public Access. Access for the general public shall be consistent with adopted policies or plans that address public access on specific sites. (17) Location of Structures. To the maximum extent practicable, new buildings, roads and other new impervious surfaces associated with interpretive centers or wetland maintenance facilities shall be located outside boundaries of wetlands identified for protection in adopted plans and policies. (18) Mitigation Site Buffers. When low value wetland sites within the NR zone are restored or enhanced for mitigation credit, a 25 foot buffer shall be maintained around the perimeter of the mitigation area, but within the jurisdictional wetland boundary. All provisions for permitted uses, conditionally permitted uses, prohibited practices and applicable special standards that apply to /WB wetland buffer, as specified in EC 9.4800 through EC 9.4860 shall apply to mitigation site buffers. (19) Site Layout. High activity areas, including traffic lanes, loading docks, and group gathering areas shall be located as far away from wetlands, water features and other protected natural areas as is practicable. (20) Noise. For inventoried sites that.received a Wildlife Habitat Rating of greater than 60 in the Metropolitan Natural Resources Inventory (Lev, 1990) and sites designated as high value wetlands in the wetland buffer provisions of this code, noise generated by uses within the NR zone and the wetland buffer overlay zone (as measured at the wetland boundary) and within the waterside protection overlay zone (as measured at the top of the high bank) shall not exceed the following standards: (a) Maximum sound emissions shall not exceed equivalent sound pressure levels in decibels, A-Weighted Scale, for anyone hour as stipulated in subsection (b) of this section. Equivalent sound pressure level (Leq) is a measure of the sound level for anyone hour. It is the energy average of all the various sounds emitted from the source during the hour. A- Weighted Scale is used to adjust sound measurements to simulate the sensitivity of the human ear. (b) Maximum one-hour equivalent sound pressure levels: A-Weighted (dBa) Receivina Prooertv Residential Broad Zone Cateaorv Time of Dav Level 7 am - 10 prTJ 57 10 pm - 7 am 50 (c) Noises of short duration. For noises of short duration or impulsive 9-86 03/17/2006