Public Services Committee

TOWN OF MOUNT PLEASANT, SOUTH CAROLINA PUBLIC SERVICES COMMITTEE Tuesday, September 4, 2018 Municipal Complex, Committee Meeting Room, 3rd Floor 100 Ann Edwards Lane, Mount Pleasant, SC 29464 Minutes Members Present: Jim Owens, Chair; Joe Bustos, Kathy Landing, Kevin Cunnane Staff: Eric DeMoura, Jody Peele Mr. Owens called the meeting to order at 2:06 p.m. 1. Approval of Minutes from the August 8, 2018 meeting Mr. Owens called for a motion to approve the minutes from the August 8, 2018 meeting Mrs. Landing so moved; seconded by Mr. Bustos; motion carried unanimously. 2. Public Comments None. 3. Employee years of service recognition Jody Peele, Director of Public Services, recognized Karen Pinckney, Facilities Maintenance Technician, for 15 years of service. Mr. Peele described Ms. Pinckney as a great asset to the Facilities Division. Mr. Peele added that Ms. Pinckney helps with three Town locations: Jones Center, Remley’s Point, and the Greenhill Community Center. He added that she has a great understanding and knowledge of her job and always performs at a high level. Mr. Peele praised her for her kindness to the  Public Services Committee Minutes September 4, 2018 Page 2 of 24 citizens of Mount Pleasant and for her excellent customer service and dedication. 4. Consideration of Resolution to Address Flooding and Draining Infrastructure in the Town of Mount Pleasant Mr. DeMoura introduced Jason Crowley and Betsy La Force with the Coastal Conservation League. Mr. Crowley thanked the Committee for allowing himself and Ms. La Force to speak today. Mr. Crowley stated that he is the Director of the Communities and Transportation with the Coastal Conservation League and with him is his colleague, Ms. La Force. Mr. Crowley stated that he and Ms. La Force are representatives of a county-wide coalition known as Fix Flooding First, which is a local community driven grassroots movement advocating for solutions for funding to address flooding across Charleston County. He added that they work closely with two local Mount Pleasant organizations: The African American Settlement Community Historic Commission, who has representatives present today, as well as Save Shem Creek. Ms. La Force stated that over the years our region has become increasingly aware that waters are rising, and storms are intensifying. She added that the media often focuses its attention on downtown Charleston, but the issues are throughout the County. She added communities in Charleston County are reporting more instances of roads being blocked by flooding as shown in the image below from the 2015 1000-year flood taken by the Mount Pleasant Police Department.  Public Services Committee Minutes September 4, 2018 Page 3 of 24 Ms. La Force stated that water is rising in streets and yards that have never experienced impacts before. She added that we can all acknowledge that there are flooding issues in the community and the reason they are here is to talk about solutions. Mr. Crowley stated that following the three consecutive years of storm events and the larger nuisance tidal events that are affecting all of us across the region, the Coastal Conservation League recognized that the effects of flooding caused by these tidal and rain events were no longer outliers, but becoming the new normal. He added that earlier this year they convened groups across Charleston County representing cultural, environmental, community, business, and historic preservation to better understand what the challenges are that our region faces and how we can work proactively to help empower our local governments and local elected officials to identify funding opportunities to aid in flood mitigation.  Public Services Committee Minutes September 4, 2018 Page 4 of 24 Mr. Crowley stated that there have been more than 15 organizations that have joined Fix Flooding First across Charleston County since launching this program in June 2018. Ms. La Force stated that Mount Pleasant is fortunate for having a relatively large land mass and elevation in many parts of the area that are high enough to avoid complete inundation by sea level rise. She added that many of the most iconic and historic neighborhoods in Mount Pleasant are prone to flooding due to low elevation and creeks that stretch far inland such as Shem Creek. Ms. La Force stated that Mount Pleasant has a vibrant and engaged community thanks to the strong local leadership. She added that the Town is one of the best places to live in South Carolina. She added that this is the reason the Fix Flooding First coalition needs the Town’s help, to engage Charleston County officials to provide more financial aid to mitigate flooding on our infrastructure. Mr. Crowley stated that the chart shown below from the National Oceanic and Atmospheric Administration (NOAA) shows the increase in number of days per year that nuisance flooding from high tides is inundating local infrastructure. He added that we can all identify days this summer when the rain fell so hard and so quickly that our roads became impassable.  Public Services Committee Minutes September 4, 2018 Page 5 of 24 Ms. La Force stated that through this coalition work, they are collecting and hearing stories from residents and business owners who are being affected by flooding throughout the region. She added that even if residents do not see the effects in their own yards, they are still impacted when the path from point A to point B becomes impassable due to flooding. She added that this is when flooding becomes a regional issue that would need a collaborative approach. Mr. Crowley stated that many of the same stories are happening here in Mount Pleasant. He added that the below slide is a picture from Old Village being inundated by massive rain storms and storm drains that are overflowing from extreme high tides.  Public Services Committee Minutes September 4, 2018 Page 6 of 24 Mr. Crowley added that these issues are not only happening in downtown Charleston but also in areas like Mount Pleasant, North Charleston, West Ashley, and James Island. He added that this is a regional issue and something that needs to be worked on together to identify solutions to overcome these challenges. Ms. La Force stated that over 100 Mount Pleasant residents have already signed the Fix Flooding First petition since the June 2018 launch. She added that many of these residents gave stories of water crossing roads and yards with more frequency and force today than they have ever witnessed since before Hurricane Hugo in 1989. Ms. La Force stated that the Town has many new residents that are largely underprepared for the flooding woes that they are beginning to experience. Mr. Crowley stated that in 2016, Charleston County approved a local sales tax increase to pay for infrastructure as shown in the below slide.  Public Services Committee Minutes September 4, 2018 Page 7 of 24 Mr. Crowley stated that some people might argue that this tax was not meant to address drainage projects but as the tax shows, drainage was included. He added that the Fix Flooding First Coalition is here to support the resolution that is presented to everyone today. Ms. La Force stated that there have been projects that have been prioritized for funding by the half-cent sales tax, including increasing capacity along Highway 41 in Mount Pleasant. She added that the Fix Flooding First Coalition has no intention of shifting money away from already dedicated projects. She added that Charleston County currently allocates only $500,000 annually to the entire County for drainage projects. She added that more money can and should be allocated from the half-cent sales tax towards drainage projects. Mr. Crowley stated that Mount Pleasant has been a leader in Charleston County championing initiatives that improve the quality of life for their residents. He added that one great example is the recent passage of the ordinance that prohibits the use of plastic bags in Mount Pleasant. He added  Public Services Committee Minutes September 4, 2018 Page 8 of 24 that this directly addresses our incredibly iconic waterways as it helps clean up pollution and trash along roadways. He added that this is just one way the leadership in Mount Pleasant is being used as a model throughout the rest of coastal Carolina. Mr. Crowley expressed that these examples illustrate the reason the Coalition wants to work with the Town to help tackle the flood mitigation problems in Charleston County on a regional level. Mr. Crowley stated that the sales tax is not the be-all and end-all funding solution. He added that we need to also look at local, county, state, and federal resources. He added that the half-cent sales tax has been approved which is 2.1 billion dollars and 200 million dollars of that amount was bonded when the sales tax was approved. He added that there is money available that can help to identify and prioritize projects, and to then ask the County for support in funding those solutions. Mr. Crowley stated that this would be a step in the right direction and a reason that they would like to work collectively with all the municipalities across Charleston County to advocate for some of the funding to be put towards drainage projects that have already been identified. Ms. La Force concluded the presentation and asked if there were any questions. Mr. Bustos stated that the Town has been tackling flooding issues for the past couple of years and is currently embarking on a $10 million drainage project. He asked what would be requested for Mount Pleasant if the Coalition were to go to the County and ask for part of the half-cent sales tax. Mr. Crowley stated that one of the goals Fix Flooding First has and a reason they are going to each municipality is to show their support and encourage everyone to work together and to work with the County. He expressed that by doing this in a unified stance with all the municipalities, they can help  Public Services Committee Minutes September 4, 2018 Page 9 of 24 identify drainage projects. He further added that the Town of Mount Pleasant has already done this by undertaking and identifying some of these drainage projects and the funding needed for them. He added that other municipalities around the County do not know where to begin this process and by having a unified support group, some of these issues could be addressed by getting staff to put these projects on the table such as when the sales tax was put together. Mr. Bustos stated that this irks him because he feels that Fix Flooding First wants the Town to twist the County’s arm when the Town is already addressing their own problems. He stated that it appears that they are trying to get part of the Town of Mount Pleasant’s money to spend across the County. Mr. Bustos added that he did not believe there was any intent to help the Town of Mount Pleasant. Mr. Crowley stated that taxpayers from Mount Pleasant, Charleston, North Charleston, Awendaw, McClellanville, and all the other municipalities in Charleston County all pay the same sales tax and are all contributing into this fund. He added that this is the reason they would like to work with all of the municipalities together to make sure that the sales tax dollars that are being collected for infrastructure projects are actually going toward infrastructure projects, but also help address our drainage problems. Mr. Crowley stated that the idea is to not take money from one place and spend it somewhere else, but to make sure when the money is being put towards infrastructure projects, that drainage is prioritized and that they are identifying drainage projects that will actually solve the problems. He further explained that they are accounting towards an increase in our storms so that the storm drainage design is not addressing a 25-year storm event when we are experiencing 50 and 100-year storm events on a more regular basis. Mrs. Landing stated that she is a member of the Finance Committee and was looking at the Capital Improvement Plan budget which was just under 60  Public Services Committee Minutes September 4, 2018 Page 10 of 24 million dollars. She added that they had identified the most important areas for Mount Pleasant for the taxpayers to reap the benefits of all the taxes they pay and to see that things stay maintained properly. She added that well over half of the budget is for Public Services and Stormwater projects, over 30 million dollars. She added that the reason she brought this up is in concurrence with Mr. Bustos’s comments regarding how hard the Town has been working towards these projects including one ongoing in Snee Farm as well as the Old Village and the pump station. Mrs. Landing stated that they have been addressing these issues since being elected in November 2017. She added that she is unsure what signing our names to this half-cent sales tax resolution does differently from what the Town is doing on a daily, weekly and monthly basis. She added that she does know that many people would like Highway 41 to be widened before eight years from now regarding the half-cent sales tax. She added that they do recognize that there are problems, but she feels that the Town is working to address them. Mr. Owens stated that he believed they are not here to seek dollars from the Town, but rather to join a coalition across the County to take part in this resolution that has been submitted. He added that in his discussions with Mayor Haynie, the Mayor is fully supporting it. Mr. Owens added that he does not have a problem with the entire County needing to participate. He stated that the Town of Mount Pleasant has gone above and beyond with regard to protecting our residents from stormwater conditions and the Town will continue to do that. Mr. Owens added that in his discussions with Eric DeMoura, Town Administrator, they discussed the fact that the County allocates 500,000 dollars annually and whether the Town can get a portion of that to provide financial assistance that would better enable smaller projects throughout the Town.  Public Services Committee Minutes September 4, 2018 Page 11 of 24 Mr. Owens stated that he believed that is where Fix Flooding First is coming from and what the Town is trying to entertain as a Committee to move this toward Town Council to adopt the resolution for the entire County. Mr. Cunnane moved to advance this request to Town Council with no recommendation; seconded by Mrs. Landing. Motion passed by a 3 to 1 vote. Mr. Owens, Mr. Cunnane, and Mrs. Landing voted in favor. Mr. Bustos was opposed. Mr. Cunnane stated that the reason he specified no recommendation is because he does not believe that a committee is the place to set policy for the Town, but that the Town Council should be the one to do that. Mr. Owens expressed that he understood Mr. Cunnane’s statement. Mr. Owens thanked Mr. Crowley and Ms. La Force for their presentation and time. 5. Update regarding the design of Edwards Park and Royall drainage basins Mr. Peele stated that Mr. Rick Karkowski will be giving the presentation on the update of the Edwards Park and Royall Avenue drainage basins. Mr. Karkowski thanked the Committee for allowing Thomas & Hutton to give an update on the drainage projects. Mr. Karkowski stated that today’s presentation will discuss the background of the project, the two project areas that are currently in the design phase, the proposed improvements for those areas, pump station rehabilitation, schedule, and a project cost estimates update.  Public Services Committee Minutes September 4, 2018 Page 12 of 24 Mr. Karkowski stated that Thomas & Hutton were the authors of the original drainage study that was completed in June 2017, which studied all the drainage in the Old Village study area. He added that they delineated 27 basins that had individual outfalls to major water bodies. Mr. Karkowski added that they evaluated each of the existing drainage systems within those basins. He added that they were able to determine the level of service for each basin, showing the amount of rainfall those systems could handle without flooding. He added that based on those findings and some other metrics, they were able to prioritize those basins in which the Town would consider doing improvements. Mr. Karkowski stated that they made recommended improvements for every basin in the study area. He added that they also prepared conceptual cost estimates for the project. Mr. Karkowski stated that in October 2017, they received the go-ahead on the design for the two most deficient basins that were also the most highly prioritized basins: Royall Avenue Basin and Edwards Park Basin. Mr. Karkowski stated that part of the scope of work with the Town included a land survey which provided all the facilities in the area. He added that everywhere they proposed an improvement, they surveyed the entire right- of-way (ROW). Mr. Karkowski added that they have also done a significant amount of follow-on hydraulic modeling and design. He added that the original work was more of a cursory or planning level of study where they have now been updated to a hydraulic design type study. Mr. Karkowski stated they have had a significant amount of utility coordination with Mount Pleasant Waterworks as well as environmental permitting. He added that there will also be a significant amount of Department of Transportation (DOT) encroachment permitting.  Public Services Committee Minutes September 4, 2018 Page 13 of 24 Mr. Karkowski added that they will also be working on the bidding and construction services once the project is ready to go out for bid. Mr. Karkowski stated that the below slide shows the two basins that were the highest priority. He added that Edwards Park Basin is 138 acres and the Royall Avenue Basin is 132 acres. Mr. Karkowski stated that to date the slide below is the schematic of the improvements that Thomas & Hutton has designed. He added that the black lines are the proposed pipes and the red dots are the proposed structures. He added that the existing outfall for the Royall Avenue Basin goes to the end of Royall Avenue and flows into the marshes of the intracoastal waterway. He added that there are some pipe systems that will remain in place and continue to function as part as the system which are highlighted in blue.  Public Services Committee Minutes September 4, 2018 Page 14 of 24 Mr. Karkowski stated that there were some systems that are in areas that are not accessible and do not have current easements on them. He added that for the entire project they have been designing without a property acquisition phase. He added that they did not want to get into the realm of asking for or buying easements. Mr. Karkowski stated that the Royall Avenue Basin has approximately 147 new structures and 172 different lengths of pipe totaling around 16,000 linear feet of new pipe. Mr. Karkowski stated that design of the Royall Avenue Basin is farther along than the Edwards Park Basin due to the change in their design approach for the Edwards Park Basin. Mr. Karkowski stated that the below slide is the design for the Edwards Park Basin. He added that the black lines are the proposed pipes, red dots are the proposed structures, and the yellow dots are the outfalls. He added that they are creating a second outfall as part of this project. He added that the  Public Services Committee Minutes September 4, 2018 Page 15 of 24 current outfall is a pressure system coming out of the pump station through Ferry Street, whereas the new outfall will be proposed for the end of Queen Street. Mr. Karkowski stated that the Edwards Park Basin has 150 proposed structures and 147 different segments of proposed pipes totaling around 14,400 linear feet of pipe in the ground. Mr. Karkowski stated that the below slide shows the size of pipes going in each basin. He added that these sizes are significantly larger than the ones that are currently in place. Mr. Karkowski added that in their original survey they found one or two 36- inch pipes in the study area and now there will be a significant increase in pipe sizes throughout the basins.  Public Services Committee Minutes September 4, 2018 Page 16 of 24 Mr. Karkowski stated that the below slide is a graphic that is part of the Edwards Park design. He added that early in the design phase, they were contemplating a fairly large pump station expansion which was brought to Town staff and to the Committee. He explained that, at that time, they had an alternate design which they called the Queen Street diversion. He added that the diversion is a gravity driven system rather than a mechanical electrical system such as the pump station. Mr. Karkowski stated that since the last Old Village drainage study update given to Committee, they have completed the surveys in the diversion areas as well as the environmental study field work. He added that they designed this system to the standards that they have in the study. Mr. Karkowski stated that they are at about 35 percent complete on design plans for the Edwards Park Basin. He added that the Royall Street Basin is around 60 to 70 percent complete on design plans.  Public Services Committee Minutes September 4, 2018 Page 17 of 24 Mr. Karkowski stated that the diversion will divert about 3/5 of that basin off the pump station which will allow the pump station to function at the level it should for the remaining 2/5 of the area that will continue to drain towards the pump station. Mr. Karkowski stated that they do have a few minor upgrades that Thomas & Hutton will be proposing for the pump station to make it more reliable and maintenance friendly. He added that the existing pump station will meet the 10-year level of service. Mr. Karkowski stated that there will still be some rehabilitation and upgrades required for the pump station and that they will be proposing wet- well lining. He added that there are some water intrusion issues in some of the electrical conduits as well as some rehab needed on the electrical system. Mr. Karkowski added that the bigger issue would be with the generators. He added that he spoke with the Town on being able to run the entire system in  Public Services Committee Minutes September 4, 2018 Page 18 of 24 an emergency, as if the power were knocked out, we would still be able to run on diesel generators. Mr. Owens asked if there was an onsite generator. Mr. Karkowski answered in the affirmative. Mr. Owens asked if it would be mobile or fixed. Mr. Karkowski stated that is still up in the air. He added that there is a mobile generator that they believe can be modified. Mr. Peele stated that the generator that is currently at the pump station is a mobile one. He added that the idea was if they ever needed to move it to another location if they did not need the pump stations to run, they would at least have a power source that could be moved to another location. Mr. Karkowski stated that there is a possibility that the final design upgrades would be a second mobile generator or modifying the current mobile generator to be able to start and run the two pumps that are in place. Mr. Karkowski stated that they did an entire site walk of the Royall Avenue Basin and looked at alignment for what trees at the time they had proposed for impacting or removing. He added that they walked the entire system, including speaking to some residents, to gather a good understanding of what the proposed improvements were impacting and from those findings, they have made some changes to the design to minimize some of the impacts such as tree and restoration impacts. Mr. Karkowski stated that they have completed that process on the Royall Avenue project and will do that same field exercise on the Edwards Park project. He added that they will do as much as possible to minimize tree impacts.  Public Services Committee Minutes September 4, 2018 Page 19 of 24 Mr. Karkowski stated that the impacts to trees on this project will have to at least go through Committee, if not the full Council once the final design is complete. Mr. Karkowski stated that they are doing well with the Royall Avenue Basin schedule but are a little behind with the Edwards Park Basin due to the redesign. He added that the Royall Avenue Basin has a large utility relocation impact. He explained that there were a few more impacts than what they were anticipating, but they are working through those impacts and will take them to Mount Pleasant Waterworks and get their concurrence on them. Mr. Karkowski stated that the above slide is the current updated schedule with the design being complete late this year and being ready to bid early next year.  Public Services Committee Minutes September 4, 2018 Page 20 of 24 Mrs. Landing asked if the construction for the Royall Avenue Basin would begin in May 2019 approximately as indicated on the schedule shown. Mr. Karkowski answered in the affirmative. He stated that they would be ready for bidding to begin if the Town has the available funding in place. He added that they expect to have all the permitting and approvals complete by then. Mrs. Landing stated that the schedule shows Edwards Park starting construction in October 2019. She asked if it would be pushed back three months due to the redesign. Mr. Karkowski answered in the negative. He added that this schedule has been updated. Mrs. Landing stated that the reason she brings this up is for the citizens, so they can see the work beginning and see that work is being done to fix these drainage issues. Mr. Karkowski stated that Edwards Park Basin is following behind Royall Avenue Basin because of the change in going from the pump station upgrade to the different outfall upgrade. He added that they were in sync before, but now they are slightly apart. Mrs. Landing stated that they saw a lot of pictures today regarding Hurricane Irma and the other hurricane seasons in the past. She asked if it is safe to say that once these projects are complete the pictures will change, and residents can count on a much better drainage system for the next typical hurricane. Mr. Karkowski stated that two of the pictures provided were from the two study areas. He added that one of the pictures was at the corner of Ferry Street and Pitt Street which is where the pump station is located. He added  Public Services Committee Minutes September 4, 2018 Page 21 of 24 that the pump station will function significantly better because we will have diverted 3/5 of the basin off of it. Mr. Karkowski stated that the other picture that he recognized was at Williams Street and Royall Avenue. He added that the area is topographically low. He added that it is at elevation 5 and the storm surge was significantly above that which is what put that water on those streets. Mr. Karkowski stated that the rest of the basin is going to work well, but there will be a fringe area that will be susceptible to tidal surge that a drainage project, without building flood walls, would be unable to address. Mr. Karkowski stated that this project is going to make drainage throughout those basins much, much better. Mrs. Landing asked if someone were to ask if there is a measurable amount of rainfall in this amount of time it will be able to handle it. Mr. Karkowski answered in the affirmative. He added that it is a 10-year design storm event with some modifications since we are assuming that there will be a significant amount of redevelopment in the basins and a lot more impervious area. He added that they are also planning on a two-foot sea level rise and that is the reason the pipes are bigger. Mr. Karkowski stated that there is a risk every day regarding flooding. He added that there is a 50/50 chance that those areas are going to flood currently, and with these improvements that risk is going to go to a 10 percent chance. Mr. DeMoura stated that based on the construction schedules, that the Town will be looking at a date likely after the first of the year to offer to the public an open house type event where they can come in and see what exactly is going to be happening, when, and what will be impacted. He added that it would be a good opportunity to let them know that there will  Public Services Committee Minutes September 4, 2018 Page 22 of 24 likely be a financial impact to them, as well as an impact to trees around them, parking spaces they may have included next to their property and driveway extensions. Mr. DeMoura stated that this will be impactful to some residents in the area and we would like to get that information in front of them at the right time. Mr. Owens asked if that would include a bid time or bid package showing when the bidding process would begin. Mr. DeMoura answered in the affirmative. He added that two to three months is what was planned. Mr. Karkowski stated that he has one more slide discussing the financials and the cost estimates as shown in the below slide.  Public Services Committee Minutes September 4, 2018 Page 23 of 24 Mr. Karkowski stated that the top two lines in the above slide are the total linear footage that they had planned on improving and the construction costs of those pipe improvements that include ancillary facilities. Mr. Karkowski stated that the current design has more linear footage of pipes. He added that the current cost shown only includes the pipe and structure cost. He added that they still need to add in the utility relocations, restoration cost, outfall structure cost, and the pump station rehabilitation cost. Mr. Owens thanked Mr. Karkowski for his presentation. 6. Consideration of Amending Chapter 53: Environmentally Acceptable Packaging and Products to remove section 53.04(b): All Food Providers may give straws, lids, cutlery, and to-go condiment packages upon request of the customer. Mr. Owens stated that he placed this item on the agenda based on questions that were coming from vendors. He explained that they were asking if they could put these items on their counter, behind the counter, ask them, or do not ask them. He added that this has created a level of confusion. Mr. Owens stated that most of these vendors are planning their orders for the next fiscal year and Section B provides ambiguity and a loophole that would allow vendors to continue ordering items that are meant to be banned. Mr. Owens stated that by removing this provision it would clear up the confusion and strengthen our ordinance. Mr. Cunnane made a motion to advance the amendment to Council with a recommendation to remove section 53.04(b); seconded by Mrs. Landing.  Public Services Committee Minutes September 4, 2018 Page 24 of 24 (Discussion) Mr. Cunnane stated that when this ordinance was passed, the public was told that we would look at it over the next year and make amendments as needed. He added that this section made its way through the ordinance but should have been deleted. He continued by saying that they are just following through with what they had told the public. Mrs. Landing stated that she knows it is not on today’s agenda so she will not discuss it today but there are several things that she pointed out on the night of the final vote that conflicted with each other. She added that this is one of those, where we are telling people they cannot do these things and then all the sudden they can, if they request it. Mrs. Landing stated that this was more of a clarification than anything else. Mr. Owens asked if there was any more discussion. Mr. Owens called for the vote. Motion passed unanimously. 7. Adjourn There being no further business, Chairman Owens adjourned the meeting at 2:50 p.m. Respectfully submitted by, Andrew Dolan September 7, 2018  A Resolution to Address Flooding and Draining Infrastructure in the Town of Mount Pleasant WHEREAS, The greatest threat to the citizens’ quality of life in the Town of Mount Pleasant is flooding; and WHEREAS, Our region’s economy depends on a reliable network of transportation infrastructure that must remain clear of standing water for vehicles to move freely and safely; and WHEREAS, In recent years, the Town of Mount Pleasant has been impacted by numerous significant storm events that have stranded vehicles and closed major interstate corridors due to flooding; and WHEREAS, Charleston County experienced more than fifty (50) days of nuisance flooding in 2016 alone, which impedes roadways, the movement of people and goods, and access to emergency services. Collectively, these impediments contribute not only to the deterioration of our quality of life but also to heightened health and safety concerns for our citizens and our region; and WHEREAS, It will require the collective efforts of each municipality within Charleston County to work collaboratively with Charleston County Council to utilize tax payers’ dollars towards drainage projects that will mitigate and prevent flooding on our roadways; and WHEREAS, This Council representing the Town of Mount Pleasant will ask staff to identify the top priority drainage projects related to the Town of Mount Pleasant’s transportation network; and WHEREAS, Voters in Charleston County passed the Half-Cent Sales Tax referendum in 2016 to set aside $1.5 billion for transportation infrastructure projects that include drainage projects; and WHEREAS, $200 million of the $1.5 billion is currently available to be spent immediately on priority projects with $500,000.00 being allocated annually for drainage; and WHEREAS, Following the prioritization of projects that address flooding and drainage, the Town of Mount Pleasant’s Council may, in its discretion, request Charleston County Council allocate funds from the 2016 Half-Cent Sales Tax to finance these prioritized flooding and drainage projects. NOW, THEREFORE, BE IT RESOLVED by Mayor and Councilmembers of the Town of Mount Pleasant, in the Town of Mount Pleasant assembled that Charleston County Council utilize funds from the 2016 Half-Cent Sales Tax toward mitigating  flooding on our roadways by prioritizing and implementing drainage projects in the Town of Mount Pleasant. PASSED AND APPROVED THIS ________ DAY OF, ________, 2018. _______________________________ J. W. Haynie , Mayor Town of Mount Pleasant ATTEST: _______________________________ Christine Barrett, Clerk of Council September 4, 2018 OUTLINE • Background • Project Area • Proposed Improvements • Pump Station Rehabilitation • Schedule • Project Cost Estimates BACKGROUND • Drainage Study • Completed in June 2017 • Delineated 27 basins • Evaluated existing drainage system • Determine level-of-service • Prioritized basins • Recommended improvements • Prepared conceptual cost estimates BACKGROUND • Drainage Improvements Design for Royall Avenue and Edwards Park Basins • Began October 2017 • Survey • Hydraulic modeling and design • Utility coordination • Permitting • Bidding • Construction services  PROJECT AREA Edwards Park Basin = 138 acres Royall Avenue Basin = 132 acres DRAINAGE BASIN  PROPOSED IMPROVEMENTS ROYALL AVENUE BASIN BASIN PROPOSED STRUCTURES EXISTING STRUCTURES PROPOSED PIPES EXISTING PIPES  PROPOSED IMPROVEMENTS EDWARDS PARK BASIN BASIN PROPOSED STRUCTURES EXISTING STRUCTURES PROPOSED PIPES EXISTING PIPES PROPOSED IMPROVEMENTS • Royall Avenue: • Edwards Park: • Total number of structures = 147 • Total number of structures = 150 • Total number of pipes = 172 • Total number of pipes = 147 • Total length of pipe = 15,950 LF • Total length of pipe = 14,398 LF • 12” = 49 LF • 15” = 1,807 LF • 15” = 1,024 LF • 18” = 1,899 LF • 18” = 1,121 LF • 24” = 1,514 LF • 24” = 1,756 LF • 30” = 703 LF • 30” = 1,826 LF • 36” = 2,465 LF • 36” = 1,385 LF • 42” = 1,298LF • 42” = 889 LF • 48” = 1,645 LF • 48” = 6,375 LF • 54” = 1,689 LF • 54” = 321 LF • 6’ x 4’ Box = 1,378 LF • 60” = 1,204LF • Misc. Pump Station Upgrades QUEEN STREET DIVERSION • Diverts about 3/5 of contributing drainage area from existing pump station • Allows existing pump station to function at nearly 10-year design level-of-service EDWARDS BASIN DIVERTED AREA DIVERSION ROUTE EXISTING PIPES PUMP STATION • Queen Street diversion eliminates need for pump station expansion • Existing pump station will operate at a 10-year level-of-service • Some rehabilitation and upgrades will still be required TREE IMPACTS SCHEDULE PROJECT COSTS Edwards Park Royall Avenue 2017 Total LF Pipe 9,400 Total LF Pipe 9,800 Study Est. Total Project Cost $4.57 M Est.Total Project Cost $4.10 M Total LF Pipe 14,400 Total LF Pipe 16,000 Total # Structures 150 Total # Structures 147 Total Pipe/Structure Cost $3.69 M Total Pipe/Structure Cost $3.34 M Current Utility Relocations X Utility Relocations X Design Restoration X Restoration X Outfall Structure X Outfall Structure X Pump Station Rehab. X Total Project Cost X Total Project Cost X