[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

[3:41] approximately 119 miles of city-owned

[3:44] road runs through Chanhassen keeping

[3:47] them in good working condition takes a

[3:49] lot of preparation and

[3:50] [Music]

[3:54] planning before any road project the

[3:56] city of Chanhasson's engineering

[3:58] department spends a lot of time planning

[3:59] and designing it's a lot of people and a

[4:02] lot of steps to make sure that it's done

[4:04] correctly step one in the design process

[4:06] is planning the preliminary design to

[4:09] plan out what we need to do we first

[4:10] need to get the lay of the land and

[4:12] understand what we're working with we

[4:13] gather this information through

[4:14] examining the site in person surveying

[4:16] residents and through the overall

[4:18] condition index score which is something

[4:19] we go into more depth in in our

[4:21] selection process video which you can

[4:23] find a link for in the description we

[4:25] consider traffic volumes whether they're

[4:26] increasing or decreasing if there are

[4:28] storm water drainage issues if there

[4:31] need to be safety improvements and any

[4:32] public utility improvements like sewer

[4:34] or water that should be part of the plan

[4:36] as we select our rehabilitation method

[4:39] next we sit down and assess the needs

[4:41] and prioritize the sort of rehab roads

[4:43] will get based on the funding that we

[4:45] have projects are sorted by their cost

[4:47] and benefit and our long-term planning

[4:49] goals we only have so many funds each

[4:51] year for projects so we have to make

[4:53] sure we're working as effectively as

[4:55] possible with what we have 30 60 90 100%

[5:00] design these are design stages

[5:02] represented by the percentage of the way

[5:04] through the design process a project is

[5:07] at 30% we're designing the basic layouts

[5:10] at 60% we're reviewing the preliminary

[5:13] designs and exploring alternative

[5:15] solutions to any specific issues that

[5:17] need addressing at 90 to 100% we go

[5:20] through the nitty-gritty details in the

[5:22] end a final design is approved by the

[5:24] city council and the project moves to

[5:26] bidding while that 30 60 90 100% meter

[5:30] is filling up we start the environmental

[5:32] and regulatory review process because

[5:34] concrete and asphalt don't absorb storm

[5:36] water water has to flow to the proper

[5:38] areas so that natural resources such as

[5:41] wetlands aren't disturbed and your

[5:44] basement doesn't flood could stretching

[5:46] the road out to the west impact

[5:47] endangered species like the long-eared

[5:49] American bat and the rusty patch

[5:50] bumblebee if we level this hill what

[5:52] does that mean for the nearby vegetation

[5:54] every project we undertake has the

[5:57] potential to impact the environment

[5:58] around it we work with watershed

[6:00] districts road authorities the Minnesota

[6:02] Department of Natural Resources and

[6:04] other organizations to make sure that

[6:05] our decisions have as low of an

[6:07] environmental impact as possible while

[6:10] meeting all

[6:11] regulations when that meter gets to be

[6:13] around the 30 to 60% mark we open a

[6:16] dialogue with area residents address any

[6:18] concerns and provide any relevant

[6:20] updates on the project the earlier we

[6:22] can get that engagement through things

[6:24] like surveys and open houses the better

[6:26] we can plan the larger more impactful

[6:28] the project the more community

[6:30] engagement once we've received all the

[6:33] necessary approvals and incorporated all

[6:35] the applicable feedback it's go time we

[6:38] finalize the design and prepare the

[6:39] detailed plans and specifications for

[6:41] contractors to bid on most local road

[6:44] projects go through a low bid process

[6:46] and a responsible contractor is selected

[6:49] and awarded a contract by the city

[6:51] council the planning and design process

[6:53] is crucial to getting what we want a

[6:54] quality road within our budget much of

[6:57] the preparation and planning is done to

[6:59] get the community the best bang for its

[7:01] buck thank you for taking some time to

[7:03] learn about the planning and design

[7:05] process next up we'll take a deeper dive

[7:07] into the construction process for other

[7:10] information about the projects happening

[7:11] around Chanhassen visit

[7:16] [Music]

[7:18] chanhassenm.gov/projects ah road

[7:20] construction a Minnesota summer

[7:22] tradition after the city's engineering

[7:25] team selects a rehabilitation method and

[7:27] the design is approved by the city

[7:29] council it's time to get to work the

[7:31] construction process can be long and

[7:33] complex but here are the

[7:39] basics it starts with a pre-construction

[7:42] meeting between stakeholders contractors

[7:44] city engineers small utilities and

[7:46] others they use this time to discuss the

[7:49] project schedule materials potential

[7:52] conflicts and other important details

[7:55] next it's time to mobilize the

[7:57] contractor sets up the construction site

[7:59] establishes temporary traffic control

[8:01] measures and brings in the materials

[8:03] equipment and personnel the crews then

[8:05] prepare the work site this can involve

[8:07] removing debris and vegetation erosion

[8:10] control measures and marking out

[8:11] existing utilities depending on the

[8:14] rehabilitation method the sequence of

[8:16] the next events may differ but if the

[8:18] project involves major underground

[8:19] utility work that's done first and then

[8:22] the road core is done next doing our

[8:24] best to keep neighborhoods as accessible

[8:26] as possible eventually some or all of

[8:29] the pavement will be removed and

[8:30] anything that can't or won't be reused

[8:32] is trucked out some of the methods

[8:34] involve milling and reclamation machines

[8:36] for more in-depth detail on some of

[8:38] those more intensive rehabilitation

[8:40] methods you can check out our other

[8:42] videos in this series by clicking the

[8:44] links in the description throughout the

[8:45] process drainage improvements may be

[8:47] made to ensure that storm water flows

[8:49] properly this may involve installing new

[8:51] culverts drainage pipes and structures

[8:54] curb and gutter or surface water

[8:56] management systems like storm water

[8:58] ponds another thing that happens

[9:00] throughout are quality control and

[9:02] assurance checks to ensure that the work

[9:04] meets project specifications and

[9:06] industry standards this involves

[9:08] conducting tests on materials

[9:10] inspections and monitoring construction

[9:12] activities once the new pavement is

[9:14] placed the site is cleaned up and any

[9:16] erosion control measures traffic control

[9:18] measures and staking are removed at the

[9:21] same time inspections are taking place

[9:23] and any issues and deficiencies with

[9:25] work are added to the punch list an

[9:26] itemized list of things that need to be

[9:28] repaired crews will restore the site to

[9:31] its original condition or better once

[9:33] cleanup is finished a final inspection

[9:35] is conducted and the final punch list is

[9:38] created once everything has been

[9:39] completed the city accepts the project

[9:41] and the project is officially considered

[9:43] complete any warranty or maintenance

[9:46] agreements go into effect there are a

[9:48] few ways that road construction may

[9:49] impact you as a resident lane closures

[9:52] detours and temporary road closures may

[9:54] be necessary within your project area

[9:56] noise and dust from construction are a

[9:58] given but contractors try to minimize

[10:00] them as much as possible equipment

[10:02] material may be an eyes sore but it's

[10:04] all stored on city property or within

[10:06] the right of way occasionally some

[10:08] projects may include temporary utility

[10:10] interruptions some of these are planned

[10:12] and others not so much if your utilities

[10:15] irrigation lines or invisible dog fence

[10:17] are ever damaged those repairs are given

[10:20] high priority and are fixed at no cost

[10:22] to the owner and that's it there are a

[10:25] lot of steps and moving pieces but

[10:26] hopefully it makes a lot more sense all

[10:28] laid out please remember to drive slowly

[10:31] and respect traffic signs when in

[10:33] project areas for more information on

[10:35] the projects happening around Chanhassen

[10:37] and to sign up for project e

[10:38] newswsletters visit

[10:42] [Music]

[10:44] chanhassenm.gov/projects the city of

[10:46] Chanhassen manages approximately 119

[10:48] miles of streets in their upkeep we

[10:50] review and grade sections every 3 years

[10:53] based on funding we prioritize what

[10:55] roads need work and schedule

[10:57] construction and repairs this is our

[10:59] pavement management plan

[11:03] one technique the city uses to

[11:05] rehabilitate our streets is a procedure

[11:06] called mill and overlay mill and overlay

[11:09] is a road construction technique that

[11:10] involves grinding off that top layer of

[11:12] a road surface and installing a new top

[11:15] layer of pavement this is a structural

[11:17] improvement that extends a road's life

[11:19] cycle we use this construction technique

[11:21] when a road starts showing signs of

[11:22] deterioration and scores somewhere

[11:24] between the 60 to 80 range on the

[11:26] overall condition index a 100 point

[11:28] scale we use to rate a road's health

[11:30] although we use the OCI to address road

[11:32] rehabilitation keep in mind that other

[11:34] engineering factors may play a role in

[11:36] the selection process for more

[11:38] information on the selection process

[11:39] make sure to check out the first video

[11:41] in our pavement management series those

[11:43] ranges indicate that the pavement is

[11:45] starting to show signs of distress such

[11:46] as cracking but the underlying aggregate

[11:49] base and sub layer are still in good

[11:51] condition the lower the score the deeper

[11:54] we have to mill and the more that we

[11:56] have to take off the top regardless of

[11:58] how much is mil just replacing that top

[12:01] layer alone saves a ton of cash and

[12:03] gives the road an approximate 15 to

[12:05] 20-year boost in life expectancy that's

[12:08] mill and overlay a road construction

[12:09] technique that replaces the top layer of

[12:11] the road and extends its life cycle for

[12:13] more information about why we choose

[12:15] certain repair methods over others an

[12:17] overview of the construction process and

[12:19] more intensive construction techniques

[12:21] make sure to check out the other videos

[12:22] in our pavement management plan series

[12:24] for more information about the projects

[12:26] happening around Chanhassen make sure to

[12:28] check out

[12:33] Chanhassenm.gov/projects the city of

[12:34] Chanhassen manages approximately 119

[12:37] miles of streets and their upkeep we

[12:39] review and grade all city roads every 3

[12:41] years based on funding we prioritize

[12:44] what roads need work and schedule

[12:46] construction and repairs this is our

[12:48] pavement management plan

[12:51] [Music]

[12:52] one technique we use to repair our city

[12:54] roads is full depth reclamation full

[12:57] depth reclamation or FDR involves

[12:59] grinding up a road's existing asphalt

[13:02] and mixing it with the top part of the

[13:03] aggregate base to create a new base

[13:05] layer after that base layer set new

[13:07] layers of asphalt are installed on top

[13:09] any excess material that could be

[13:11] recycled on site is hauled away to be

[13:13] recycled elsewhere we use this

[13:15] construction technique when the existing

[13:17] pavement shows signs of significant

[13:19] deterioration and generally scores below

[13:21] a 60 on the overall condition index a 0

[13:24] to 100 point scale we use to rate a

[13:26] road's health although we use the OCI to

[13:29] address road rehabilitation keep in mind

[13:31] that other engineering factors may play

[13:33] a role in the selection process for more

[13:35] on our selection process make sure to

[13:37] check out the first video in our

[13:38] pavement management series although this

[13:40] method is more expensive and extensive

[13:43] than the mill and overlay technique it

[13:45] avoids the more costly total

[13:47] reconstruction which involves various

[13:49] additional improvements that's full

[13:51] depth reclamation a road construction

[13:53] method that digs a little deeper

[13:55] recycling the old to build a new for

[13:57] more information about why we choose

[13:59] certain repair methods over others an

[14:01] overview of the construction process and

[14:03] other intensive repair techniques make

[14:05] sure to watch the other videos in our

[14:07] pavement management plan series for

[14:09] other information about the projects

[14:11] happening around Chanhassen visit

[14:18] chanhassenm.gov/projects the city of

[14:19] Chanhassen manages approximately 119 mi

[14:22] of streets in their upkeep we review and

[14:24] grade all city roads every 3 years based

[14:26] on funding we prioritize what roads need

[14:29] work and schedule construction and

[14:31] repairs this is our pavement management

[14:33] plan

[14:36] one technique we use to rehabilitate our

[14:38] city roads is reconstruction

[14:40] reconstruction is when the entire road

[14:43] is completely removed and replaced this

[14:45] can include replacing the existing

[14:48] asphalt pavement aggregate base curb and

[14:51] gutter and sidewalk or trails if not

[14:54] previously present a sand subsection

[14:56] drain tile curb and gutter and sidewalk

[14:59] may be installed during reconstruction

[15:02] public utilities such as sewer and water

[15:03] are inspected for replacement we use

[15:05] this construction technique when the

[15:07] existing pavement shows significant

[15:09] signs of deterioration and generally

[15:11] scores below 40 on the overall condition

[15:13] index a 0 to 100 point scale we use to

[15:16] rate a road's health although we use the

[15:19] OCI to address road rehabilitation keep

[15:21] in mind that other engineering factors

[15:23] may play a role in the selection process

[15:26] similar to full depth reclamation a

[15:27] technique we covered in a previous video

[15:29] in this series this method is used when

[15:31] roads are in need of substantial rehab

[15:33] unlike a full depth reclamation

[15:35] reconstruction involves improvements

[15:37] such as utility reconstruction subbase

[15:40] and subgrade replacement the addition of

[15:43] a curb or gutter and other safety

[15:45] improvements in short reconstruction is

[15:47] necessary when a road reaches the end of

[15:49] its life cycle this type of repair

[15:51] represents a significant investment in

[15:53] the future of Chanhasson's

[15:54] transportation network once complete the

[15:56] cycle of maintenance and rehabilitation

[15:58] begins again that's reconstruction the

[16:01] rehabilitation method we use to renew a

[16:03] road when it reaches the end of its life

[16:05] cycle for more information about why we

[16:07] choose certain repair techniques over

[16:08] others an overview of the construction

[16:10] process and less intensive repair

[16:12] techniques make sure to check out the

[16:14] other videos in our pavement management

[16:16] plan series for more information about

[16:18] the projects happening around Chanhassen

[16:20] make sure to check out

[16:21] chanhassenm.gov/projects

[16:25] [Music]