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3. Option B is also done at 32 feet and reduces the amount of grading by using retaining walls. The grading is cut down a fair amount, but there is the approximately ten-foot high retaining wall, exposed above on one end and below on the other. Mr. Dolan then presented and explained the Summary Sheet: • Length of the Road. This obviously does not change in any of the options; the land area for the two Option A-Section A, Option A-Section B are over two acres; Option A without the retaining walls is almost three acres at 2.7 acres, which is almost cut in half with the retaining walls in Option B. He indicated that an estimate of an acre would be the size of a football field. • Area to be Graded. The amount of area that would need to be graded within the 25-percent slope area is about the same for Option A and the 24-Foot Road Option at 1.7 acres and 1.6 acres, respectively. This goes down to 0.8 acre without the retaining wall. • Fill in the Creek. The fill to be put in a culvert to cross the creek is generally about the same for the three Options. • Heritage Trees. The number of Heritage trees to be removed goes down from about 20 to 12 with the use of retaining walls. • Earthwork. The smallest amount of cut-and-fill would be in the 24-Foot Road; the others are roughly the same. This sounds like a lot at about 11,000 or 12,000 cubic yards, but this is relative and is not as much as was moved around in other projects, such as the Chrisman project. • Number of Truck Trips. The intent, if the construction of the road is incorporated into a project approval, is to actually use this volume of dirt that would need to be moved on the site, that is, within the project, so there would be less of an impact than was first thought. • Maximum Depth of Cut. This ranges between 12 and 9 feet. The maximum depth of fills is consistent at 18 feet. • Maximum Height of Walls. Option A and the 24-Foot Road Option gives the height of a retaining wall at the culvert, about down into the creek surrounding the culvert; this retaining wall height is not going to be visible on the hillside because there are no retaining walls necessarily built-in along the length of the road, and so even though the average height looks pretty consistent, two of them do not really have walls along the length of the road; it is just down in the creek which will happen no matter what. Building this road will mean having a culvert and crossing the creek, so there will be some sort of retaining wall down in the secret part of the bank. • Linear Feet of the Walls. This is really a very short distance at 220 feet and 187 feet for Option A and the 24-Food Road Option, relative to Option B at 1,185 feet as it is a proposal to have retaining walls almost the entire length, more than the length of the roadway. • Average Wall Height. This is an average of 6 feet, 4 inches on Option B, where there is a wall along almost the entire length. EXCERPT: PLANNING COMMISSION MINUTES, August 26, 2015 Page 2 of 26