[0:00] the city of Chanhasson manages [0:01] approximately 119 miles of streets and [0:03] their upkeep we review and grade all [0:06] city roads every three years based on [0:08] funding we prioritize what roads need [0:10] work and schedule construction and [0:12] repairs this is our pavement management [0:16] plan one technique we use to [0:19] rehabilitate our city roads is [0:20] reconstruction reconstruction is when [0:22] the entire road is completely removed [0:25] and replaced this can include replacing [0:28] the existing asphalt pavement aggregate [0:31] base curb and gutter and sidewalk or [0:33] trails if not previously present a sand [0:36] subsection drain tile curb and gutter [0:39] and sidewalk may be installed during [0:42] reconstruction public utilities such as [0:44] sewer and water are inspected for [0:45] replacement we use this construction [0:47] technique when the existing pavement [0:49] shows significant signs of deterioration [0:51] and generally scores below 40 on the [0:54] overall condition index a zero to 100 [0:56] point scale we use to rate a road's [0:58] health although we use the OCI to [1:00] address road rehabilitation keep in mind [1:02] that other engineering factors may play [1:05] a role in the selection process similar [1:07] to full depth reclamation a technique we [1:09] covered in a previous video in this [1:10] series this method is used when roads [1:12] are in need of substantial rehab unlike [1:15] a full- depth reclamation reconstruction [1:17] involves improvements such as utility [1:19] reconstruction subbase and subgrade [1:22] replacement the addition of a curb or [1:24] gutter and other safety improvements in [1:27] short reconstruction is necessary when a [1:29] road reaches the end of its life cycle [1:31] this type of repair represents a [1:32] significant investment in the future of [1:34] Chanhasson's transportation network once [1:36] complete the cycle of maintenance and [1:38] rehabilitation begins again that's [1:41] reconstruction the rehabilitation method [1:43] we use to renew a road when it reaches [1:45] the end of its life cycle for more [1:47] information about why we choose certain [1:48] repair techniques over others an [1:50] overview of the construction process and [1:52] less intensive repair techniques make [1:54] sure to check out the other videos in [1:56] our pavement management plan series for [1:58] more information about the projects [2:00] happening around Chanhassen make sure to [2:02] check out chanhassenm.gov/pros [2:06] [Music]