[0:00] the city of Chanhassen manages [0:02] approximately 119 miles of streets and [0:04] their upkeep We review and grade all [0:07] city roads every 3 years Based on [0:09] funding we prioritize what roads need [0:11] work and schedule construction and [0:13] repairs This is our pavement management [0:18] plan One technique we use to repair our [0:20] city roads is full depth reclamation [0:23] Full depth reclamation or FDR involves [0:26] grinding up a road's existing asphalt [0:28] and mixing it with the top part of the [0:29] aggregate base to create a new base [0:32] layer After that base layer is set new [0:34] layers of asphalt are installed on top [0:36] Any excess material that could be [0:37] recycled on site is hauled away to be [0:39] recycled elsewhere We use this [0:41] construction technique when the existing [0:43] pavement shows signs of significant [0:45] deterioration and generally scores below [0:48] a 60 on the overall condition index a [0:50] zero to 100 point scale we use to rate a [0:53] road's health Although we use the OCI to [0:55] address road rehabilitation keep in mind [0:57] that other engineering factors may play [0:59] a role in the selection process For more [1:01] on our selection process make sure to [1:03] check out the first video in our [1:04] pavement management series Although this [1:06] method is more expensive and extensive [1:09] than the mill and overlay technique it [1:11] avoids the more costly total [1:13] reconstruction which involves various [1:15] additional improvements That's full [1:17] depth reclamation a road construction [1:19] method that digs a little deeper [1:21] recycling the old to build a new For [1:24] more information about why we choose [1:25] certain repair methods over others an [1:27] overview of the construction process and [1:29] other intensive repair techniques make [1:32] sure to watch the other videos in our [1:33] pavement management plan series For [1:36] other information about the projects [1:37] happening around Chanhassen visit [1:39] chanhassenm.gov/projects [1:42] [Music]