Laserfiche WebLink
Baldur Park Road Reconstruction <br />March 18, 2015 <br />Page 2 <br /> <br /> <br />The disadvantages of this option include the following: <br />• Higher initial construction cost compared to alternatives with a reduced scope of work <br />• Poor drainage in this area will still be a factor which limits the life of the road <br />• Construction will require significant disruption to the adjacent properties. <br /> <br />The total estimated cost for this option is $413,780. <br /> <br />Full Depth Reclamation <br />This option would consist of pulverizing the existing bituminous pavement along with a portion of the <br />underlying aggregate base. A portion of the reclaimed material would be removed to maintain the <br />existing grade of the road so that drainage patterns are maintained and the underlying subgrade materials <br />are not surcharged by the additional weight of the road. The recommended pavement structure for this <br />option is as follows: <br /> <br />• 3.5” of bituminous <br />• 6” (minimum) of reclaimed aggregate base <br /> <br />The advantages of this option include the following: <br /> <br />• Provides a rehabilitated aggregate base and new pavement structure at a lower initial construction <br />costs compared to full depth reconstruction <br />• Construction can be completed with minimal disruption to adjacent properties <br /> <br />The disadvantages of this option include the following: <br />• A potentially unstable subgrade would be left in place <br />• The pavement structure would not be consistent throughout the project area <br />• The life of the roadway would be less compared to other options <br /> <br />The total estimated cost for this option is $107,880. <br /> <br />Partial Depth Reconstruction: <br />This option would consist of removing and replacing the existing pavement structure to a depth of 12.5”. <br />The recommended pavement structure for this option is as follows: <br /> <br />• 3.5” of bituminous <br />• 9” of Class 5 aggregate base <br />• Geotextile fabric <br /> <br />The advantages of this option include the following: <br /> <br />• Provides a consistent pavement structure throughout the project area <br />• Provides separation between the aggregate base and underlying subgrade materials <br />• Construction can be completed with minimal disruption to adjacent properties <br /> <br />The disadvantages of this option include the following: <br />• A potentially unstable subgrade would be left in place <br />• The life of the roadway would be less compared to full depth reconstruction <br /> <br />Entire Council Packet 05/26/15 [Page 328 of 378]