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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2006 PAVEMENT MANAGEMENT PROGRAM neighborhood, including fewer tree impacts, than Option 2 but would likely require future repair and/or replacement of the wall. Wall Option 2: Remove retaining wall. As part of this option, the retaining wall along Siems COUlt would be removed as would the bituminous roadway to the west of the retaining wall. The area where the retaining wall is removed would be filled and graded at approximately a 3:1 slope from the edge of the proposed Siems Court to the western edge of the removed lower roadway section. Sod and seed would be planted on the slope. Two shorter retaining walls of approximately 75 feet in length and 3 to 10 feet high would be constructed along the north and south driveways. The City Siems COllrt at Retain WaU (Facing South) may desire the removal of all trees within the retaining wall due to damage that may occur during retaining wall removal. Removing the wall and grading the western slope will allow the proposed Siems COUlt to be 1 to 2 feet lower in this area, improving the driveway slopes in this section. This would add approximately $45,000 to the overall project cost. This option would minimize future maintenance costs and improve the slopes on either side of Siems C01ut. This option would require tree removal and could damage root systems on trees that remain. Exhibit A3 illustrates the proposed options for the Siems Court retaining wall. RIGHT-OF-WAY DISCUSSI01>i Based on our review of GIS information and survey of existing propelty corner monuments, there is one area where the existing roadway is outside of the City Right of Way and on private property. This case is along Ridgewood Road approximately 300 feet south of Lake Johanna Boulevard, where it curves and runs north and south. The western edge of the road traverses pri vate property and the eastern edge is adjacent to mature trees and steep boulevard slopes. ROW Option 1: Shift roadway centerline to the northeast. This would require the removal of one mature tree (18" caliper), several smaller trees (2"S' caliper) and require the constlUction of approximately 150 linear feet of 3' -5' high of retaining wall along the boulevard. This would add approximately $15,000 to the project cost. ROW Option 2: Acquire roadway easement from property owner on which the existing Ridgewood Road is located The City would need to acquire approximately 2,030 SF of property for permanent roadway easement purposes. The cost of the property acquisition may be nominal as the roadway has existed in its cunent location for over forty years. The City Attorney will need to review the situation prior to approaching the property owner. TEMPORARY ROW I:VIPACTS DURI!\G CO:\STRUCTI01>i We anticipate minor grading and sod placement in yards as well as driveway restoration beyond the City's Right of Way limits throughout the project area. Based on successful past experience, URS 9