Storm Water Management in Milwaukees Murray Hill Neighborhood Report_04!20!2010

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Storm Water management What has been measured: In mIlWaukee’S murray HIll neIgHborHood Murray Hill Neighborhhod MCAMILIS 2007 aerial photos where overlaid on scale planimetric dxf files to highlight and measure the various major ground cover within the Murray Hill Neighborhood, located in Milwaukee’s Upper East Side. The study area was divided into five different categories including: Building Footprints, Public Streets, Public Sidewalks, Parking Areas and Alleys, and all remaining areas and g
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  1   mke - indicator Storm Water management - In mIlWaukee’S murray HIll neIgHborHood What has been measured: MCAMILIS 2007 aerial photos where overlaid on scale planimetric dxf files to highlight and measure the various major ground cover withinthe Murray Hill Neighborhood, located in Milwaukee’s Upper East Side. The study area was divided into five different categories including:Building Footprints, Public Streets, Public Sidewalks, Parking Areasand Alleys, and all remaining areas and green space was combined forthe fifth category. The area was analyzed on a square foot basis andthen represented in as percentages of the neighborhood as a whole.In addition a physical visual reconnaissance was conducted of theneighborhood. Why is it important:  The Milwaukee Metropolitan Sewerage District utilizesw a combinedsewer system in the study neighborhood, therefore large rain eventsoften lead to an overloaded system causing overflows of partiallytreated sewage into our local waterways. To reduce the occurrences of overflows MMSD has invested millions of dollars ($65.4 million on themost recent expansion alone) into its deep tunnel wastewater storagesystem. In addition to sewage overflows non-point source pollutionrunoff from our rooftops and paved areas contain many pollutantsincluding: petroleum based products, pesticides, and fertilizers, alongwith heavy metals. In cities such as Seattle used run-off reducinginfrastructure, which reduced runoff by 98% at a cost of 25 percentbelow that of conventional street designs. How are we doing:  The graphic on the next page along with the accompanyinggraphs illustrate the current development status of the Murray HillNeighborhood. Currently, at least 64% of the study area is covered byeither impervious pavement or buildings which are connected to thecombined sewer system. That total of 64% can be broken down intothe following: Buildings - 31%, Public Streets -15%, Alleys and Parking  2   mke - indicator PARKINGPARKINGPARKING   P  K  N  G PKNG   P  A  R  K  I  N  G PKNGPKNG         P        K         N        G  PKNGPKNGPKNG         P        K        N        G   P  K  N  G  P  K  N  G PKNGPKNGPARKINGPARKINGPKNGPKNGPARKINGPKNGPKNGPKNGPKNGPKNGBOULEVARD PLACE   A  V  E  N  U  E  S  T  R  E  E  T  A  V  E  N  U  E  A  V  E  N  U  E PLACEPLACE   A  V  E  N  U  E  A  V  E  N  U  E  A  V  E  N  U  E  A  V  E  N  U  E   A  V  E  N  U  E  N  S  T  O  W  E  L  L E NEWBERRY   N  O  A  K  L  A  N  D  N  C  R  A  M  E  R  N  M  U  R  R  A  Y  N  F  R  E  D  E  R  I  C  K E PARK   N  F  A  R  W  E  L  L  N  M  A  R  Y  L  A  N  D  N  P  R  O  S  P  E  C  T   N  M  A  R  Y  L  A  N  D  N  F  A  R  W  E  L  L E WEBSTER   N  S  T  O  W  E  L  L  N  P  R  O  S  P  E  C  T E BELLEVIEW   N  D  O  W  N  E  R AVENUEAVENUEAVENUEAVENUE   A  V  E  N  U  E  A  V  E  N  U  E AVENUEE GREENWICH   N  C  R  A  M  E  R  N  O  A  K  L  A  N  D  N  M  U  R  R  A  Y  N  F  R  E  D  E  R  I  C  K   N  F  A  R  W  E  L  L E NORTH   N   P  R  O  S  P  E  C  T E BRADFORD   N  M  A  R  Y  L  A  N  D  A  V  E  N  U  E   S  T  H   3  2  S  T  H   3  2 E THOMASMARYLAND AVENUEELEMENTARYSCHOOLREC AREAGILMANTRIANGLE Areas - 12%, and Public Sidewalks - 6% of the study area. What is being done: Currently there are no efforts underway in the study area to reducethe storm water run-off. In addition no private efforts where observedwhich are intended to reduce the rate or amount of storm waterrun-off. The city of Milwaukee along with MMSD has encouragedprivate homeowners to disconnect downspouts however they arenot required to. There has been private and public investments inreducing storm water run-off in other Milwaukee neighborhoods. What still needs to be done:  There are numerous private and public options for reducing stormwater runoff. On-site private options include: down spout disconnect,pervious pavements, green roofs, rain gardens, and rain barrels, andthe use of native plant species. Public infrastructure include: perviouspaved streets, sidewalks or alleys, bio-swales or street side pocketswales, along with private incentives for reductions. In 1996 Portlandlaunched a downspout disconnect program in which the city woulddisconnect your downspout for you free, or they would pay you to doit yourself. The residents also received residential utility fee discountsunder Portland’s Clean River Rewards Incentive System. The program,by disconnecting 60,000 downspouts diverted 1.5 Billion gallonsannually from the combined sewers. Sources: Wise, Steve. “Green Infrastructure Rising.” American Planning Association Aug/Sept(2008). Web.MCAMILIS. “MCAMILIS 2007.” Map. Milwaukee, 2007. PrintMilwaukee Metropolitan Sewage District (MMSD). “FRESH COAST,WEAVINGMILWAUKEE’S GREEN & GREY.” Www.mmsd.com. MMSD, Dec. 2009. Web.Ptacek, Mitch. Murray Hill Ground Cover Research Results. Spring 2010. Raw data.Murray Hill, Milwaukee. GROUND COVER IN THE MURRAY HILL NEIGHBORHOOD Storm Water management - In mIlWaukee’S murray HIll neIgHborHood
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