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Page 6 of 7 <br />Exhibit B <br /> <br /> <br />Question 18: Section 3.04 Location and Placement of Utility Infrastructure, identifies the PUE, <br />beneath sidewalks and the plant strip and being the preferred locations for utility infrastructure. <br />Could water facilities be located in the street to avoid conflicts with trees, rain gardens, etc.? <br /> <br />Finding: Alternate placement locations may be allowed within the public way with approval. The <br />requesting utility would need to demonstrate that the preferred locations were infeasible due to <br />site conditions, including other infrastructure and design criteria for the public way. <br />Request for alternate placement of utilities may be submitted to the Public Works Maintenance <br />Surface Technical Supervisor for evaluation and consideration. <br /> <br /> <br />Question 19: Section 3.05 ADA Impacts and Restoration, is the expectation that driveways be <br />replaced to ADA standards? This may require obtaining easement, design, and construction <br />which can take substantial time. <br /> <br />Finding: Driveway approaches are one pedestrian related facility that are required to be <br />upgraded when impacted, and the impact may come from utility, private or municipal activity. <br />The Standard Drawings contained within Standard Specifications provide the design options <br />covering most all situations. Specific direction on which detail is appropriate for a location can <br />be provided by the Utility Inspector. <br /> <br /> <br />Question 20: Section 3.06 Planting Strip and Tree Impacts, it is not convenient for certain water <br />infrastructure such as air release valves and sampling stations to be placed in the PUE (Public <br />Utility Easement), they are typically installed behind the curb for access. <br /> <br />Finding: PUE’s are provided for the express purpose of siting utility infrastructure and allowing <br />adequate space for other infrastructure such as trees within the plant strip. While some life <br />safety infrastructure is appropriate in the limited plant strip area, most other infrastructure needs <br />to be located outside of the plant strip or behind the sidewalk. <br /> <br /> <br />Question 21: Section 3.06 Planting Strip and Tree Impacts, when impacting less than 30 <br />percent of the CRZ (critical root zone) and working in the street, is it required to hand dig or use <br />other non-destruction methods to prevent damage to tree roots? It is not practical to vacuum <br />excavate a trench line in the street for extended distances. <br /> <br />Finding: Cutting roots over 2” in diameter requires approval of the Urban Forester. To avoid <br />potential harm or an unintended technical felling of a public tree, working within the CRZ (critical <br />root zone) of the tree requires implementing non-destruction techniques. <br /> <br />There are situations where little rooting is found under street pavement and areas where <br />significant root structure is in this area. While an exception to non-destructive excavation in <br />paved areas within the CRZ isn’t reasonable, Urban Forestry and the Utility Inspector is always <br />available for consulting on a specific site and there may be options based on the specific <br />conditions encountered. <br /> <br /> <br />Question 22: Section 3.06 Planting Strip and Tree Impacts, tree protection fencing is required <br />outside of the immediate excavation area but within the work zone. Does this apply to paved <br />portion of CRZ?