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Bluebelt,[object Object],Presented by Bianca Cardaci, Christina Gioeli, Kristin Lamonte, Gabriella Leone, & Stefanie Tozzi,[object Object]
What is the Bluebelt?,[object Object],The Staten Island Bluebelt is a manmade storm water management system that can be found in about one third of Staten Island’s land area.,[object Object],The Bluebelt system consists of 16 individual watersheds that cover over 10,000 acres of land.,[object Object],Each watershed contains a variety of Best Management Practices (BMPs) which are natural drainage corridors, such as constructed wetlands, streams and detention basins.,[object Object]
Watersheds,[object Object],A watershed is a geographic area from which water drains into a particular waterway.,[object Object],Water enters the regular storm water drains and then enters the Bluebelt system where it is sifted through a series of streams and ponds that contain it, purify it and slow it down.,[object Object],There are 16 separate watersheds that offer ecologically sound and cost-effective storm water management.,[object Object]
Watersheds,[object Object]
Best Management Practices,[object Object],BMPs are engineered facilities that provide flood control, water quality improvement and habitat preservation.,[object Object],Each BMP is individually designed to imitate nature and preserve all natural processes in its surrounding area. ,[object Object],There are now fifty completed BMPs, including 22 storm water wetlands with extended detention basins, 18 outlet stilling basins, 3 pond retrofits, 6 stream restorations and 1 sand filter. ,[object Object]
Richmond Creek Watershed,[object Object]
Richmond Creek Watershed,[object Object]
How does the Bluebelt work? ,[object Object],A. Restoration/Retrofit – A retrofit is the incorporation of an already existing pond or riverbed into the water management system. For example, Mill Pond was dredged to remove accumulated sediments, and extensive plantings were installed. The entire 950-acre Richmond Creek watershed flows into this one-acre pond.  ,[object Object]
The Staten Island Bluebelt
How does the Bluebelt work?,[object Object],B. Constructed Pocket Wetland - filters storm water discharge from storm sewer pipes, which drains into a tributary area. ,[object Object]
How Does the Bluebelt Work?,[object Object],C. Outlet Stilling Basin- Accepts water from the storm sewer system by means of a pipe and reduces its velocity. This speed reduction minimizes the danger of water erosion in sections of the stream.,[object Object]
How does the Bluebelt work?,[object Object],D. Culvert - prevents the flooding that plagues stream crossing. The main culvert, Richmond Town Bridge, marks the spot where fresh water and tidal water meet.,[object Object]
How Does the Bluebelt Work?,[object Object],E. Stream Restoration – Stream banks are stabilized with materials such as boulders and log-shaped rolls filled with coconut husk fibers. To reduce velocities of water within the channel, the stream is reconstructed with a pool/riffle morphology that also encourages aquatic life. ,[object Object]
The Staten Island Bluebelt
How does the Bluebelt work?,[object Object],F. Underground Sand Filter – A concrete box that was built below ground through which storm water is directed and filtered. The box contains two chambers, wet and dry. The wet chamber captures sediment and floatables. Once it’s captured it overflows through the weir (dam) into the sand and gravel (dry chamber) where it is filtered. Then it flows from storm sewer into the outlet stilling basin and into Richmond Creek.,[object Object]
How does the Bluebelt work?,[object Object],G. Extended Detention Basin - helps to manage the storm water runoff from an area of about 450 acres. The pond, a half-acre in size during dry weather, expands during heavy storms and detains the peak of the storm water flow. This basin is a “last resort” and is located at the end of the Bluebelt system.,[object Object]
The Staten Island Bluebelt
Water Quality,[object Object],Sediments filtered from the water in each BMP are tested for heavy metals. ,[object Object],RCRA (Resource Conservation and Recovery Act) gives the EPA the ability to control hazardous waste such as: silver, arsenic, barium, cadmium, chromium, mercury, lead, and selenium. The Bluebelt water is below the RCRA required levels.,[object Object], Traces of barium were found in the storm water, which is thought to be a result of tire wear. ,[object Object],Although the water is filtered so that it is cleaner when it exists each BMP into Raritan Bay & the Atlantic Ocean, it is non-potable.,[object Object]
Maintenance ,[object Object],Preservation of watersheds is necessary for them to perform their functions of conveying, storing, and filtering storm water. ,[object Object],Maintenance of the BluebeltBMPs requires controlled water flow and filtration, aesthetic appeal, safety, and pest control.,[object Object],A main component of Bluebelt Maintenance is the Vactor truck. It vacuums debris, and uses a high-powered hose that is capable of flushing clogged pipes, cleaning structural chambers and power washing sediment-laden surfaces. ,[object Object],BMPs require a periodic removal of sediment every two years.,[object Object]
Bluebelt Budget,[object Object],More than $350 million has been invested in Staten Island's Bluebelts with more than $220 million currently planned for the next 10 years. ,[object Object],The City of New York has purchased approximately 325 acres of wetland property on the South Shore for the system. Since its beginning, $300 million has been invested in sewer capital projects in the South Shore’s Bluebelt watersheds, along with $50 million for drainage improvements and wetland restoration work in the Bluebelt system itself.,[object Object],As of 2007, the city of New York has saved over $80 million dollars as a result of the Bluebelt system. ,[object Object]
Importance of the Bluebelt,[object Object],"Through the success of the Bluebelt program, New York City has adopted this approach in their Plan NYC 2030 as a means of improving climatic, infrastructural and demographic challenges in the future." - NYWEA President Bruce G. Munn ,[object Object],The faster Staten Island urbanizes, the greater the need for the Bluebelt is. Streets and rooftops increase the rate, velocity and volume of surface water runoff, meaning there is more water gathering and less places for it to go.,[object Object],Watersheds temporarily store the flood waters, while wetlands help protect adjacent and downstream property owners from flood damage. ,[object Object]
Success of the Bluebelt,[object Object],In 2004, Hurricane Ivan passed through the region without disrupting the Bluebelt system; this is a testament to its success.,[object Object],The Bluebelt can only be overwhelmed by a “Hundred-Year” storm, meaning a storm that generates 10 inches of rain and has a 1% chance of happening every 100 years.,[object Object],“[The construction of the Bluebelt is] Basically building something to mimic Mother Nature, and that’s what’s happening. So that tells us it’s successful…that what we’re trying to do is actually happening.” – James Rossi, Bluebelt Field Manager ,[object Object],The Bluebelt encourages biodiversity because it simulates nature and provides habitats for indigenous species, such as fish. ,[object Object]
Success of the Bluebelt,[object Object],Before,[object Object],After,[object Object],South Richmond intersection,[object Object]
Future Bluebelts,[object Object],The DEP is projected to install three new Watersheds in Midland Beach, South Beach and then Oakwood Beach.,[object Object],The Midland Beach Watershed (AKA New Creek) is projected to cost $37.5 million, and has a projected savings of $39 million in comparison of putting sewers in for the same area.,[object Object],On the Northern Shore of Staten Island, there is a plan to reconstruct wetlands in Snug Harbor. ,[object Object],There are also expansion plans for Queens and the Bronx.,[object Object]
Work Cited ,[object Object],http://www.nyc.gov/html/dep/html/dep_projects/bluebelt.shtml,[object Object],http://statenislandusa.com/2006/blue.html,[object Object],http://www.silive.com/news/index.ssf/2010/01/staten_islands_bluebelt_progra.html,[object Object],http://www.nyc.gov/html/dep/html/bbdrivingtour.pdf,[object Object],http://www.nyc.gov/html/dep/html/bbwalkingtour.pdf,[object Object],http://www.nyc.gov/html/dep/html/press_releases/10-73pr.shtml,[object Object],http://home2.nyc.gov/html/dep/html/press_releases/10-08pr.shtml,[object Object],http://www.asla.org/lamag/lam05/november/ecology.html,[object Object]
Work Cited,[object Object],"Clear Waters Magazine Honors DEP’s Staten Island Bluebelt Program." 25 Jan. 2010.  http://home2.nyc.gov/html/dep/html/press_releases/10-08pr.shtml,[object Object],Rossi, James, and James Garin. "Successful Maintenance of Green Infrastructure for Stormwater Management: Staten Island Bluebelt." Hazen and Sawyer Environmental Engineers & Scientists. 2009.  http://www.hazenandsawyer.com/publications/successful-maintenance-of-green-infrastructure-for-stormwater-management/.,[object Object],Gumb, Dana, and SandeepMehrotra. "Staten Island Bluebelt Program: A Natural Solution to Environmental Problems." May-June 2001. http://home2.nyc.gov/html/dep/html/press_releases/10-08pr.shtml http://www.asla.org/lamag/lam05/november/ecology.html,[object Object],Rossi, James, Dana Gumb, SandeepMehrotra, Deeya Deb, and Brian Henn. The Staten Island Bluebelt : A Case Study in Urban Stormwater Management. Rep. NOVATECH, 2007. Print.,[object Object]

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The Staten Island Bluebelt

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