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Chair Allen asked if the reason a dirt road is not a structure is because it does not have asphalt on top of it. Commissioner Balch stated that one can pave over dirt and be done, but obviously, this is going to be a road, base rock and engineered. He indicated that he thinks one could still put base rock in and pavement down and still grade a hill slightly and do the less than four -foot retaining wall, and per se, the road is not a structure. Commissioner Nagler inquired if there is a way to engineer the road with less grading that would be required with that retaining wall. He inquired if the reason a retaining wall is necessary is to retain run -off and stop run -off on the roads; the dirt does not come and overtake the road. Mr. Dolan replied that a retaining wall reduces the amount of grading. He explained that a certain angle can be cut out from the road or a retaining wall can be built and leave the dirt there, but it is more about reducing grading than it is controlling runoff. Commissioner Balch stated that the difficulty he has with this is the grading because he does not want to go against, in principle, the premise that the intent of Measure PP is to protect the hills, and grading takes him out of the game real quick, which means a retaining wall has to go in; but if there is too much retaining wall, it will not meet the requirement either. He noted that he thinks the difficulty is that there is no designed road and there is no engineered road; the grading and the cut -in is unknown, and it appears that there is going to be a bit more grading than just the simple one tractor type. Commissioner Nagler stated that the other thing that is not knows is exactly where the cross -over will exactly be over the creek, so it may be that the construction of the road is impacted by where the creek cross -over is and, therefore, what projection will be used to get up to connect. Commissioner Balch agreed. He stated that if the connection across the creek is placed closer to the Lund Road connection, there will be a steeper road. Chair Allen stated that it sounds like having that information when this item comes back to the Commission would be helpful to everyone. Commissioner Nagler stated that he doubts anyone will design a road. Mr. Dolan explained that it is difficult to get to design something that has not been proposed. He added that one of the reasons staff is comfortable recommending it in a more conceptual manner is that the Tentative Map has to come back to the Commission, and there would be another chance to look at exactly how this ends up being designed if that is what the requirement was. He indicated that he recognizes that by then, the Commission will be past the point of which option to pick. He stated that staff will try and get some of that information if it is so critical for the Commission to arrive at a decision, but he cannot guarantee it. PLANNING COMMISSION MINUTES, June 24, 2015 Page 44 of 54