2016-04-26_PWETC_AgendaPacket - Laserfiche WebLink

Home

125 owners. Mr. Culver further reported that the roadway is located within railroad right-of- 126 way, with the easement for that roadway essentially for the purpose of granting property 127 access. Mr. Culver noted that the situation was further complicated by the fact that the 128 roadway and its maintenance is not within the purviews of a homeowner's association of 129 those property owners. Therefore, Mr. Culver reported that, to-date, the road had been 130 handled as a minimum maintenance roadway; with the city plowing it only to provide 131 access to a fire hydrant and other facilities at the end of the private road. 132 133 Member Heimerl asked if staff had any idea of the contaminants flowing into the lake 134 form this area; and whether the project was needed. 135 136 Mr. Culver responded that the runoff from the roadway did discharge directly into the 137 lake from this gravel road, including some actual sediment from the road. Mr. Culver 138 advised that he was not aware that there was a particular concern with phosphorus from 139 that runoff, but noted the project would address rate control in addition to that sediment. 140 141 Member Heimerl asked staff about the life-expectancy of these pavers long-term with 142 plowing and other maintenance and uses. 143 144 Mr. Freihammer reiterated that, with the blocks tied together in large sections versus laid 145 side by side, they wouldn't move as much but flex as a unit. While he anticipated that 146 long-term, some edges may get more rounded, Mr. Freihammer noted that if and when 147 necessary the cable connecting them could be cut and blocks relocated or replaces. 148 149 Member Heimerl expressed his appreciation for the proactive nature of the proposed 150 project, as long as all short- and long-term issues were understood. 151 152 Member Wozniak asked about the long-term maintenance with this type of design and 153 keeping the pavers permeable. 154 155 Mr. Freihammer advised that they would require sweeping by vacuum to keep the pores 156 open. However, Mr. Freihammer noted there would not be any additional flow from off- 157 site areas; and therefore, should prove more than adequate as long as the paver blocks are 158 swept to avoid plugging those pores. 159 160 As an additional component of this project, Chair Stenlund asked if residents had 161 expressed any interest in rain gardens or other pre-treatment form their property edge; or 162 would they be given a maintenance plan (e.g. don't rake leaves or lawn clippings onto the 163 pavers, or don't change oil on the pavers). Member Stenlund noted the need to educate 164 the homeowners to make sure the system remained functional. 165 166 Mr. Freihammer advised that staff would need to provide some education on the layout of 167 the road. However, Mr. Freihammer noted that the topography of this area was different, 168 in that the residential properties drain away from the road onto their properties before 169 reaching the lake. Mr. Freihammer assured commissioners that there would definitely be Page 4 of 7