wild for innovation: stormwater and stream restoration
DESCRIPTION
On March 5th, 2010 the UNH Wildcats, Whittemore School of Business, New Hampshire Division of Economic Development and Public Service of New Hampshire hosted a unique afternoon workshop at UNH aimed at building teams, developing effective leaders and stimulating innovation.The "Wild for Innovation" workshop was developed specifically for New Hampshire business leaders and their teams, and included presentations like this one, on stormwater and stream restoration, by Tom Ballestero.TRANSCRIPT
STORMWATER AND STREAM RESTORATION
Tom BallesteroEnvironmental Research Group
5 March 2010
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UNH STORMWATER CENTER
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The new paradigm for stormwater management is Low Impact Development
Conventional strategies now represent the “dark side” of stormwater
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FIELD FACILITY AT THEUNH WEST EDGE LOT
POROUS ASPHALT
Main UNH SC
Research Facility
TREEFILTER
Watershed
Boundary
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POROUS ASPHALT
TREEFILTER
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TREATMENT STRATEGIES:LOW IMPACT DEVELOPMENT TECHNOLOGIES
Porous Asphalt
Gravel WetlandSand Filter
Bioretention Unit Tree Filter
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I-95 North, June 2005, OGFC overlay
I-95 North, June 2005, NO OGFC overlay
I-95 South, June 2005, NO OGFC overlay on right-hand side
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A.K.A. WHERE’D ALL THAT WATER GO?
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PA VS. OGFC
4”
4”
4’ SHWT
NATIVE
MATERIALS
2’ ROAD BASE
Impervious base
POROUS ASPHALT OGFC - wearing coarse
¾” CHOKER
2’ SANDY RESERVOIR
BASE
NATIVE
MATERIALS
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POROUS ASPHALT PARKING LOT SYSTEM CROSS-SECTION
4” thickness of ¾” crushed stone
4” of porous asphalt
8-12” thickness of open graded reservoir subbase
Soil permeability >0.5 in/hr
4” thickness of ¾”> crushed stone for frost protection
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STREAM RESTORATION
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Pre-Existing Site Looking Upstream
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5 Weeks After Construction Looking Upstream
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2 Years After Construction Looking Upstream