[0:00] chanhassen is home to approximately 119

[0:03] miles of city-owned streets these

[0:05] streets serve as a major form of

[0:07] transportation for our 26,000 residents

[0:10] 500 businesses and hundreds of daily

[0:16] visitors our roads see a lot throughout

[0:18] the year and they especially take a

[0:20] beating in the winter when plows are

[0:21] scraping and salting them in order to

[0:23] ensure that our roads are in good

[0:25] working condition the city's engineering

[0:27] department utilizes a pavement

[0:28] management plan what goes into this plan

[0:31] how do we decide what roads are repaired

[0:34] and how do we decide what kind of work

[0:35] each road needs to start the city is

[0:38] broken up into three geographical areas

[0:41] each area is field reviewed every 3

[0:43] years one of the reviewing techniques

[0:45] our engineers use to evaluate road

[0:47] conditions is the overall condition

[0:48] index or OCI the OCI is a series of

[0:51] ratings that help determine what sorts

[0:53] of repairs each road needs like with

[0:56] school grades or bowling the higher the

[0:57] score the

[0:59] better generally if your road scores 90

[1:02] or higher it's in excellent shape and

[1:04] just needs some minor maintenance and

[1:05] maybe some monitoring if your score is

[1:07] between 80 to 90 your road's in really

[1:09] good condition just might need some

[1:11] minor maintenance like some cracks

[1:13] sealed or maybe some potholes filled 70

[1:15] to 80 means we might use a Milland

[1:17] overlay rehabilitation method and 60 to

[1:20] 70 means we definitely will 50 to 60 is

[1:23] a decision between mill and overlay and

[1:25] a full depth reclamation 40 to 50 is a

[1:28] definite full depth reclamation and

[1:30] anything 40 or lower is a full

[1:32] reconstruction now although this is how

[1:34] we use the rating system generally to

[1:36] address road rehabilitation there are

[1:38] other engineering factors that may play

[1:40] a role in the selection process so what

[1:42] does this all mean well a basic

[1:45] maintenance technique is seal coating or

[1:47] chip sealing this involves applying a

[1:49] thin layer of oil and rock to the road

[1:51] surface to prevent moisture penetration

[1:53] and UV damage and extend the lifespan of

[1:56] the road by approximately 7 years mill

[1:58] and overlay takes us a little bit deeper

[2:01] this involves removing or milling the

[2:03] top layer of existing asphalt and

[2:05] replacing or overlaying it with new

[2:08] asphalt this process restores the

[2:11] surface improves the ride quality and

[2:13] extends the road's life by approximately

[2:15] 15 years

[2:17] full depth reclamation or FDR involves

[2:20] pulverizing the existing asphalt as well

[2:23] as some of the gravel layer beneath it

[2:25] that debris is then recycled and

[2:27] compacted to create a new durable base

[2:30] for the road lace some new asphalt and

[2:32] pow a new road this recycling technique

[2:36] eliminates the need for costly removal

[2:38] and disposal of old materials while

[2:40] improving and strengthening the

[2:42] longevity of the road reconstruction

[2:45] it's kind of a big deal it's a complete

[2:47] overhaul and upgrade of a road including

[2:50] removing and replacing existing pavement

[2:52] subbase and drainage systems it can also

[2:55] include widening or realigning portions

[2:58] of the road and improving it if there

[2:59] are issues like increased traffic or

[3:02] safety concerns that need addressing so

[3:04] yeah it's kind of a big deal city staff

[3:07] annually analyze these condition ratings

[3:09] and proceed in a logical manner within

[3:11] the provided funding the goal of the

[3:13] pavement management plan is to do the

[3:15] right maintenance at the right time stay

[3:18] tuned for more about our pavement

[3:19] management plan including information

[3:21] about the planning and design process a

[3:23] deeper dive into construction and a more

[3:25] formal look at the three more intensive

[3:27] road repair techniques: Milland overlay

[3:30] FDR and reconstruction for other

[3:32] information about the projects happening

[3:34] around Chanhassen visit

[3:35] chanhassenm.gov/rojects