pavement in the low country - southern landscape designs heavy vehicular loads handle vehicular...
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Pavement in the Low
Country
Savannah, GA
January 29, 2009
LID Stormwater Management with
Permeable Pavement Systems
• Advanced Pavement Technology is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completion of the program will be reported to CES Records for AIA members. Certificates of Completion for non-AIA members are available on request.
• This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any manner of handling, using distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.
Learning Objectives
1. Learn design applications for LEED
project utilizing a permeable pavement
system.
2. Develop understanding of improved
land planning with use of underground
stormwater storage.
3. Gain knowledge of proper
specifications for construction of a
permeable pavement system.
Promotes
• First Flush Pollutants
• Poor Winter
Performance
• High Maintenance
• Poor Life Cycle
Costing
University of Connecticut, September 2003
“Annual Report – Jordon Cover Urban Watershed Section 319 National Monitoring Program Project.”
Test & Year Asphalt Permeable Pavement Crushed Stone
Single Ring Infiltrometer 0 6.0 (15.3) 5.0 (12.7)
Test 2002
Single Ring Infiltrometer 0 7.7 (19.6) 7.3 (18.5)
Test 2002
Flowing Infiltration 0 8.1 (20.7) 2.4 (6)
Test 2003
in./hr (cm/hr) in./hr (cm/hr)
Average infiltration rates from asphalt, permeable pavement, and crushed stone driveways.
Objective to Decrease Runoff
Mean weekly pollutant concentration in stormwater runoff from asphalt, paver, and crushed stone driveways. Within each
variable, means followed by the same letter are not significantly different at the 95% confidence level.
Variable Asphalt Permeable Pavement Crushed Stone
Total suspended solids (mg/l) 47.8 a 15.8 b 33.7 a
Runoff depth (mm) 1.8 a 0.5 b 0.04 c
Nitrate nitrogen (mg/l) 0.6 a 0.2 b 0.3 ab
Ammonia nitrogen (mg/l) 0.18 a 0.05 b 0.11 a
Total Kjeidahl nitrogen (mg/l) 8.0 a 0.7 b 1.6 ab
Total Phosphorous (mg/l) 0.244 a 0.162 b 0.155 b
Copper (ug/l) 18.0 a 6.0 b 16.0 a
Lead (ug/l) 6.0 a 2.0 b 3.0 b
Zinc (ug/l) 87.0 a 25.0 b 57.0 ab
Average Weekly Driveway Concentrations of Various Pollutants
Decrease Water Pollution
Objective to Reduce: Nitrogen - 65%
Bacteria - 85%
Phosphorous - 40%
Bio-Aquifer Storm System will provide:
•Stormwater runoff detention – 100 year events if necessary•On-site erosion control •First-flush pollutant removal and treatment•Groundwater recharge•Improved land planning and use
1990 - Rollings/Rollings, Shackel,
NCDENR – 2006 Coastal rule change
NCSU – Hunt, Bean
UNH – Roseen
UCF – Stormwater Academy-Wanielista
Guelph – James, Pratt
Seneca College – TRCA/STEP
Urban Drainage Denver - Urbonis
St. Louis – MSD -TARP
Chicago – Elmhurst College
Research - Regulations
Maxwell Street Permeable
Market Plaza
EPA Primary Research Questions
•Runoff Volume and Rate
•Surface Water Quality
•Ground Water Quality
•Freeze/Thaw Performance
Market Plaza: Preliminary Monitoring Results
Sept 2008- Feb 2009
1/16/09 (temp in degrees)
Air: -7.0
Deep: 38.6
Middle: 34.1
Shallow: 33.4
Accommodate heavy vehicular loads
Handle vehicular loading better/load transfer
Reduced land costs
Reduce costs of underground piping, sewer lines, etc
Superior in 30-year life cycle costing analysis
Performs in freeze-thaw environments better than asphalt or concrete
8.000 PSI wearing course – resists deterioration due to de-icing salts
Surface voids can be serviced & recharged when clogging occurs
The Morton Arboretum
Main Parking Lot Seminar-November 18, 2004
Heavy Duty/Standard Asphalt Pavement
Year Maintenance Item Per Year Expenditure Accumulated Expenditure
1 Initial Install $650,000
3 Minor Patch, Crack Filler & Seal Coating $ 24,375 $674,375
5 CrackFiller,Seal Coating and Striping $ 30,500 $704,875
23 Minor Patch, Crack Filler & Seal Coating $ 36,625 $1,058,250
57 Mill & Overlay, Patching and Striping $109,375 $1,819,500
Hanscomb Faithful &Gould
The Morton Arboretum
Main Parking Lot Seminar-November 18, 2004
Permeable Brick Pavement
Year Maintenance Item Per Year Expenditure Accumulated Expenditure
1 Initial Install $980,000
3 Striping $ 2,625 $982,625
5 Striping and Cleaning $ 5,625 $989,250
23 Striping $ 2,625 $1,028,875
57 Striping and Cleaning $ 5,625 $1,109,500
Hanscomb Faithful &Gould
Treatment Train Approach
Source Controls
Permeable Pavers
Infiltration Systems
Conveyance Controls
Wet Pond
End-of-Pipe Controls
75
SWM – Old - 3 C’s – Collect, Convey, Centralize
New - Paradigm Shift – 3 D’s – Disconnect, Distribute, Decentralize
ITEM PICP CONCRETE ASPHALT
Paving/SF $ 2.25 $ 8.00 $ 3.00
Excavating/SF $ 1.00 $ 1.00 $ 1.00
Stone/SF $ 2.00 $ 1.50 $ 1.50
Installation/SF $ 4.00 (in paving cost) $ 1.50
Curbs $ 1.50 $ 1.50 $ 1.50
Maintenance $ 0.20 Not Know
Replacement None None Every 12 Years
Detention/Retention required None Yes Yes
Storm Sewer System/sf paving None $ 3.00 $ 3.00
Total/SF $ 10.95 $ 14.00 $ 11.50
Total/linear foot-municipal street $ 171.00 $ 218.00 $ 179.00
Total/linear ft for 30 ft wide street $ 230.00 $ 280.00 $ 230.00
Images courtesy of Chicago Department of Transportation
Issue: Flooding and CSO reduction
Strategy: LID Retrofit Pilot
Programs
Tool: PICP
Chicago Green Alley Program
Warrenville, IL
Moline, IL
Wilmington, MAChicago, ILAlleys &
Streets
Chicago, IL
Streets
Alleys
Parking
Green Study LID Applications
Phase II
Recycled Parking Blocks
Recycled Content-Pavers
Local Materials
Water Quality
Water Quantity
SRI Value
Garbage Trucks
Delivery Trucks
Maintenance Buildings
Photocatalysis
•Utilizes
sunlight as light
energy
•UV rays
activates with
titanium dioxide
•Accelerates
formation of
oxidizing agents
•Decomposes
pollutants
•Prevents from
accumulating
Self-
Cleaning
Concrete
•Soot ,Grime Organic particulates
•Mold. Mildew, Fungus and their spores
•Algae, bacteria and allergens
•Tobacco smoke stains