01-08-07 Full Agenda Packet - Laserfiche WebLink

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. Brighton Way The existing condition ofthe majority of the pavemcnt on this strect indicatcs a structural failure, which would typically call for a complete reconstruction. However, since the existing concrete curb and gutter is generally in good condition, staff recommends a full depth pavement replacement. The entire section of bituminous pavement will be removed, which will allow for the subgrade to be examined, identifying areas that need additional correction. The recommended pavement section is 3.5 inches of bituminous over the existing subgrade. Pine Tree Drive and Harriet A venue After reviewing the pavement, and comparing our visual observations to the estimated 2007 pel, stall feels that the condition of these streets is adequate, and that the estimated PCI values are artificially low. Staff recommends that these two streets bc added to the seal coat projcct for 2007, and postpone the mill and overlay for approximately five years. This adjustment to the CIP will also adhere to the ncighborhood approach that staff and City Council have tried to maintain, as Benton Way is slated for a seal coat prior to a mill and overlay as well. Connelly A venue The existing bituminous pavement is in necd of reinforcement. Thereforc, staff recommends that the street be milled to a depth of 2 inchcs and fortified with a 2 inch bituminous overlay. By preserving the existing curb lines along this segment, the new . vertical alignment will approximate the inplaec alignment. Necessary corrections to the subgrade will be made in areas exhibiting morc scverc signs of distress prior to paving the overlay. The pedestrian ramps at County Road E do not mect current standards, therefore are proposed for replacement as a part of this project. The concrete valley gutter at the easterly inkrsection with County Road E is in need of repair, and will be removed and replaced as well. Lametti Lane and Lametti Circle The existing bituminous pavement is in need of reinforcement. Therefore, staff recommends that the street be milled to a depth of 2 inches and forti tied with a 2 inch bituminous overlay. By preserving the existing curb lines along this segment, the new vertical alignment will approximate the inplace alignment. Necessary corrections to the subgrade will be made in areas exhibiting more severe signs of distress prior to paving the overlay. Chatham A venue, from County Road E-2 to Chatham Court After reviewing the pavement, and comparing our visual observations to the estimated 2007 PCI, stalTfeels that the condition of these streets is adequate, and that the estimated PCI values are artificially low. Staff recommends that these segment of Chatham, as well as thc rest of the Chatham neighborhood, be added to the seal coat project for 2007, and schedule a mill and overlay in approximately five years. This modification is more continuous with the neighborhood approach that staff and City . Council have tried to maintain. 18