With a growing interest in sustainability as a whole, many communities have adopted performance standards and incentives to promote sustainable design. As sustainable design becomes more desirable among communities, barriers and challenges are introduced as well. We address these barriers and suggest strategies to overcome them, providing insight on how to choose the ideal green infrastructure practice.
Green Infrastructure Basic Principles & Tools nado-web
Brownfields are vacant, underutilized, or contaminated properties that threaten human and environmental health, depress local economies, and reduce local tax revenues. Integrating green storm water infrastructure (GSI) into brownfields redevelopment has emerged as a national best practice, pushing the boundaries of sustainability ever outward and dramatically increasing the economic, environmental, and social benefits that brownfields revitalization can generate. This session will review salient principles of green infrastructure and showcase a GSI Templates tool, a GSI Decision Tree tool, and a basic project pro-forma worksheet that work in both small and large cities to help plan GSI at brownfield sites.
Eugene Goldfarb, Technical Assistance Provider, Center for Hazardous Substance Research, Manhattan, KS
Elizabeth Limbrick, Project Manager, New Jersey Institute of Technology, Newark, NJ
Margaret Renas, Lead, Community and Brownfield Redevelopment, Delta Institute, Chicago, IL
Matt Ward, CEO, Sustainable Strategies DC, Washington, DC
Paul Roebuck, one of our London based ecologists, takes you through some basics on green infrastructure in the UK and highlights some really interesting projects we have worked on and exciting future developments.
The slides cover legislation, mitigation, habitat creation, ecology impact assessments and green roofs and walls.
Green Infrastructure Basic Principles & Tools nado-web
Brownfields are vacant, underutilized, or contaminated properties that threaten human and environmental health, depress local economies, and reduce local tax revenues. Integrating green storm water infrastructure (GSI) into brownfields redevelopment has emerged as a national best practice, pushing the boundaries of sustainability ever outward and dramatically increasing the economic, environmental, and social benefits that brownfields revitalization can generate. This session will review salient principles of green infrastructure and showcase a GSI Templates tool, a GSI Decision Tree tool, and a basic project pro-forma worksheet that work in both small and large cities to help plan GSI at brownfield sites.
Eugene Goldfarb, Technical Assistance Provider, Center for Hazardous Substance Research, Manhattan, KS
Elizabeth Limbrick, Project Manager, New Jersey Institute of Technology, Newark, NJ
Margaret Renas, Lead, Community and Brownfield Redevelopment, Delta Institute, Chicago, IL
Matt Ward, CEO, Sustainable Strategies DC, Washington, DC
Paul Roebuck, one of our London based ecologists, takes you through some basics on green infrastructure in the UK and highlights some really interesting projects we have worked on and exciting future developments.
The slides cover legislation, mitigation, habitat creation, ecology impact assessments and green roofs and walls.
JetStor NAS 724UX and 724UX 10G ZFS appliance. The JetStor NAS 724UX is a ZFS based Unified Storage System that integrates NAS (Network Attached Storage) and SAN (Storage Area Network) into one chassis. Featuring the newest Intel Haswell platform to lower power consumption and 7x 1Gb Ethernet ports using iSCSI or NFS/CIFS protocol host connections, all encompassed in a small 4U enclosure. The JetStor NAS 724UX offers SSD Caching to boost random I/O intensive application, DeDup & Compression, Snapshot, Thin Provisioning, Online Capacity Expansion and Controller-based cable-less design for excellent manageability.
Jak content strategy może wspomagać marketing automation?Wojtek Aleksander
The slides for my talk I gave at #33 Geek Girls Carrots in Gdynia. Slides in Polish. It's a quick and short introduction to content strategy and marketing automation.
A presentation about strategies for urban development. Presented by Pallavi Kalia Mande with the Charles River Watershed Association during the Buzzards Bay Coalition's 2014 Decision Makers Workshop series. Learn more at www.savebuzzardsbay.org/DecisionMakers
Pike Branch at Ridgeview Park Stream Restoration Oct 2018Fairfax County
This project will restore 2,800 feet of stream in Ridgeview Park and surrounding properties. The streambed and banks will be stabilized to reduce sediment and nutrient inputs into stream system. Improved habitat will provide better ecology.
Regional Engagement for Green Infrastructure Decision-Making and Implementationnado-web
Slides from a webinar on regional engagement for green infrastructure Decision-Making and Implementation co-hosted by the NADO Research Foundation and University of Louisville Center for Environmental Policy & Management.
JetStor NAS 724UX and 724UX 10G ZFS appliance. The JetStor NAS 724UX is a ZFS based Unified Storage System that integrates NAS (Network Attached Storage) and SAN (Storage Area Network) into one chassis. Featuring the newest Intel Haswell platform to lower power consumption and 7x 1Gb Ethernet ports using iSCSI or NFS/CIFS protocol host connections, all encompassed in a small 4U enclosure. The JetStor NAS 724UX offers SSD Caching to boost random I/O intensive application, DeDup & Compression, Snapshot, Thin Provisioning, Online Capacity Expansion and Controller-based cable-less design for excellent manageability.
Jak content strategy może wspomagać marketing automation?Wojtek Aleksander
The slides for my talk I gave at #33 Geek Girls Carrots in Gdynia. Slides in Polish. It's a quick and short introduction to content strategy and marketing automation.
A presentation about strategies for urban development. Presented by Pallavi Kalia Mande with the Charles River Watershed Association during the Buzzards Bay Coalition's 2014 Decision Makers Workshop series. Learn more at www.savebuzzardsbay.org/DecisionMakers
Pike Branch at Ridgeview Park Stream Restoration Oct 2018Fairfax County
This project will restore 2,800 feet of stream in Ridgeview Park and surrounding properties. The streambed and banks will be stabilized to reduce sediment and nutrient inputs into stream system. Improved habitat will provide better ecology.
Regional Engagement for Green Infrastructure Decision-Making and Implementationnado-web
Slides from a webinar on regional engagement for green infrastructure Decision-Making and Implementation co-hosted by the NADO Research Foundation and University of Louisville Center for Environmental Policy & Management.
The world is poised to take action on climate change, and designers have a huge role to play in fostering this momentum. The Designing Climate Action class prepares for a public event on September 30th, 2015 as part of New York Climate Week 2015 to seed endeavors and create coalitions of activists, designers, scientists, and entrepreneurs designing for a positive climate future.
Smart Cities Case Study Webinar: Chula VistaBlack & Veatch
The City of Chula Vista, California, has set aggressive goals to become more efficient through intelligent systems that support improved use of energy, water, communications and other critical infrastructure.
In this October 26, 2015, presentation, Gary Halbert, City Manager, City of Chula Vista; Eric Crockett, Director, City of Chula Vista; and Mike Bossom, Solution Lead, Black & Veatch Smart Integrated Infrastructure, explain how Chula Vista is creating a Smart City Roadmap that will move plans from paper to progress. The important steps they're taking can apply to other Smart City pursuits.
For more info about Smart Cities and Communities, email SII@bv.com or visit http://bit.ly/BVSII.
Long Branch at Arlington Boulevard and Robin Ridge Court - Concept Design and...Fairfax County
Restore streambed and banks, ~4,500 linear feet
Reduce sediment and nutrient inputs into stream system
Installation of grade control structures, improve/correct channel dimension and alignment
Improve floodplain connectivity and ecological processes
Reduce force and volume of water within the channel during storm and flood events
Naturally process nutrients and sediments on the floodplain and within the streambed
Improve habitat for biological community
Native landscaping
Floodplain wetlands
Streambed and flow diversity
In-stream structures
Protect Infrastructure – Sanitary Sewer Lines
Channel Relocation away from sanitary sewer lines when possible
Armoring channel banks and bottom where relocation is not an option
Presentation by Kip Skabar, Senior Associate, Transportation at Stantec, at the ASCE-OC "Sustainability in Site Development" seminar held in October 2015.
An overview of the maintenance challenges ahead for Sitka's municipal road system, as it nears the end of its original service life. Created by Michael Harmon, Sitka Public Works Director, March 24, 2014.
FloodCoP Oct 2015 Nanco Dolman - Towards water resilient citiesPiet Filet
Nanco Dolman shares an international perspective with the Queensland Flood Community of Practice on integrating flood risk management into planning and implementation programs
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptx
How to Suceed in Your Green Infrastructure Project
1. How to Succeed with
Your Green
Infrastructure Project
March 26th, 2015
Presented by: Kari Mackenbach, CFM, BCES
Melissa Hess, PE, CFM
2. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Agenda
10:00-10:15 Welcoming Remarks and Overview
10:15-10:45 Steps to a Good Green Infrastructure Project
10:45-11:15 Focused Lessons Learned from Communities’
11:15-11:30 O&M Dictates the Type of Practice to Install
11:30-11:45 Common Pitfalls of Green Infrastructure Projects
11:45-12:00 Wrap-up and Questions/Answers
2
3. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Overview of Green
Infrastructure
3
4. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Definition of Green Infrastructure (GI)
No standard definition, but described as addressing:
Storm water management
Energy efficient buildings
Climate change
Heat stress
Biodiversity
Food production/urban agriculture
Air quality
Clean water and healthy soils
Quality of life through recreation, shade, and shelter in and
around towns and cities
4
5. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
American River’s Definition
Green infrastructure is an approach to water management that:
Protects,
Restores, or
Mimics the natural water cycle
5
6. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
EPA Definition of Green Infrastructure
Also known as low-impact development principles:
Preserving and recreating natural landscape features
Minimizing effective imperviousness to create functional and
appealing site drainage
Treating storm water as a resource rather than a waste
product
6
7. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
What else is Green Infrastructure?
Helping communities come closer to attaining the
CWA standards
Public Perception (sustainable cities)
Helps with your floodplain management strategies
Leverage State and Federal Program Dollars
Opportunity to “marry” multiple public work efforts
(streetscaping, sidewalks, parks, floodplain &
stormwater management)
8. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 8
Natural Water Cycle: Pre-Development
8
9. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Natural Water Cycle:
Post-Development
Increased
imperviousness
increases flows
Puts structures
and people in
harm’s way
9
10. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Distributed
Stormwater Features
Traditional Regional
Technique
Distributed Stormwater Controls
Close to Runoff Sources
Integrated Stormwater
Controls
11. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 11
How much does
an individual home affect stormwater runoff?
Street
Driveway
House
Stormdrain
12. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 12
How much does
an individual home affect stormwater runoff?
Street
In a 1” rainfall
Potential Runoff:
5,422 gallons
2,500 s.f.
“impervious” x 1” rain =
1,542 gallons
of runoff
Stormdrain
1,500 s.f. house (& patio) x 1” rain =
925 gallons of runoff
+ “Green Concrete” Compacted Lawn
8,390 s.f. “impervious” x 1” rain (if infiltrates first ¼” of rain)
= 3,880 gallons of runoff
1,000 s.f. driveway
x 1” rain = 617
gallons of runoff
13. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 13Photos: David Dods, URS
Consequences
• Property Loss
• Public Safety Hazard
• Damage to Public Infrastructure
• Major Sediment Source
14. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 14
How is Green Infrastructure &
Flooding Connected?
Seeing the Significance of the
Hydrologic Impacts of
Urbanization Over Time
15. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
How is GI Important for Floodplain
Management?
Combining with water quality projects/initiatives
– NPDES permits
– Storm water utility fees
– Erosion issues (due to high flow volumes)
Land use planning
Post-flood rebuilding
Mitigation projects
Require for development in the floodplain
Reducing flows from development
Other?
15
16. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Green Infrastructure Flood Benefits
Not going to impact:
– 100-year flood
May impact:
– 1-year flood
– Frequent nuisance
flooding
– Frequent storms
Often significant financial
benefit for controlling frequent
storms
16
17. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
AFTER
BEFORE
• Residential
Neighborhood
• Rain Garden Retrofits
• Long-Term Monitoring
2006 Neighborhood Application
18. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Burnsville, MN
Paired Study of Residential Street
Runoff Control
19. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
17 Rain Gardens Installed
Diagram courtesy of the City of Burnsville, MN from their
Burnsville Stormwater Retrofit Study
• 5.3 acres treated and 7.5 acres controlled
• Average treated lot < .5 acres
• Average total rain gardens < 1 acre
20. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Blue: Control
Red: With Rain
Gardens
Diagram courtesy of the City of
Burnsville, MN from their Burnsville
Stormwater Retrofit Study
21. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Steps to a Good Green
Infrastructure Project
21
22. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 22
23. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
24. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 24
25. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Project Goals
CSO/SSO mitigation
Storm water concerns
Distressed Parcels
Community Reinvestment
Floodplain Management
Visual impacts
Other CIP projects
Costs
26. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Selected Sites Overview – Putting the
Puzzle Together
Is the land public?
What are the limiting factors?
Does it make cost effective sense?
Is it an all green solution?
How much do I have to capture?
What about maintenance?
Is it already functioning as green?
27. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 27
28. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 28
Green Infrastructure Types
29. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Rain Gardens
Retrofit between existing curb & sidewalk
URS PictureURS Picture
30. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Photo URS
Rain Gardens
Slow the Water Down & Innovative Plant Media
URS PictureURS Picture
31. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 31
Sediment & Trash Control at Inlet
32. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Photo: Lisa Treese, KCMO Water Services
Permeable Pavement
Retrofit between existing curb & sidewalk
URS Picture
URS Picture
33. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 33
Permeable Pavement
Within the ROW
URS PictureURS Picture
34. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Permeable Pavement
Within the ROW
URS Picture URS Picture
35. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Photos: URS
Curb Extensions
With below-grade storage
36. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Commercial Street
Pavers, below-grade storage, bioretention
Pervious Sidewalks Below Grade Storage
URS Picture
URS Picture
37. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Tree Boxes
Below-grade storage, multiple applications
38. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 38
39. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Step by Step
4
3
1/
2
5
1 2 3
4
5
40. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
What is it going to look like?
40
41. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Evaluate the Limiting Factors
42. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Trees….We Love Them and Hate Them!
43. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Soil conditions is a key consideration
GI can work well in clay soils but………
44. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 44
45. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Green Infrastructure Quantification
46. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Green Infrastructure Quantification
Impervious land uses
Change land use characteristics without changing the land
use
47. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 47
48. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Right-Sizing or Other Evaluation
48
49. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Photo URS
Neighborhood Improvements
Photos URS
50. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 Photo URS
Neighborhood Improvements
Photos URS
53. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Photo URS
Photos URS
Neighborhood Improvements
54. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Photo URS
Photos URS
Neighborhood Improvements
55. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
56. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Focused Lessons Learned
from Other Communities’
56
57. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Columbus Blue Print Areas
58. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Blueprint Columbus Schematic (City of Columbus)
Defining Green Infrastructure for LOS Investigation
59. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 59
60. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
O&M Dictates the Type of
Practice to Install
60
61. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Design with the end in mind…..
Key Green Infrastructure Considerations
62. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Consideration: Evaluate the Existing
Conditions of the Area
Trees are great but……..
URS PictureURS Picture
63. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Consideration: Interconnection of
Systems
Rain Garden, Gravel Parking, Bioswale, & Below Grade Storage
Photo URS
URS Picture
64. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Consideration: Purpose of GI
Stormwater by-passes GI feature entirely
URS PictureURS Picture
65. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Consideration: Location & Maintenance
Leaves & debris kill grass if not cleaned
URS PictureURS Picture
66. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Consideration: Long-term Maintenance
Sediment affects performance
URS Picture
67. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Consideration: Long-term
Maintenance
Sediment affects performance
URS PictureURS Picture
68. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Consideration: Skilled Construction
Oversight and Construction
Sequencing
GI is still new to most construction contractors
URS PictureURS Picture
69. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Considerations: Inlet and Outlet Designs
Inlet designs for debris management are key
URS PictureURS PictureURS Picture
70. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Consideration: Knowledgeable
Maintenance Crew
GI Maintenance is different
URS Picture
URS Picture
71. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Consideration: Trash will find its way
into the GI Practice
Whether at the Inlet or Outlet or Outright in your Practice
URS PictureURS Picture
72. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Consideration: Small spaces can
equal great impact
Small footprint GI Practices work if you have good infiltration
URS PictureURS Picture
73. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Consideration: Location soil
conditions is a key consideration
GI can work well in clay soils but………
74. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Consideration: Pilot Tested Design
Details
Inlets, Fore-bays, Edging and Filter Strips…..Oh my!
75. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Consideration: Evolution of GI
Practices
GI Science is evolving……
75
URS PictureURS Picture
76. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Lessons Learned and Leveraged
Devil is in the Details
76
1. Be thoughtful of your current surroundings.
2. Get out from behind your computer and experience your basin.
3. Not all green infrastructure will work in every location, you have to be flexible.
4. You will run into utilities‘, you have to be flexible.
5. Design with the end in mind. Operation and Maintenance of these
practices are still evolving.
6. When in doubt go with something that is tried and true!
77. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Common Pitfalls of Green
Infrastructure Projects
77
78. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Bioinfiltration
URS PictureURS Picture
79. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 79
Rain Gardens Bioretention
Cheaper but requires
more space in tight
soils
More to go wrong but
can require less space
80. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 80
“On-Line” vs. “Off-Line” Designs
On-Line
Off-Line
Off-Line Reduces Erosion Problems
81. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 81
Curb Cut
Curb Cut Details
Inlet
82. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 82
Maintaining Infiltration
Keep Equipment out of
Garden
83. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 83
Soil Preparation
to Maintain
Infiltration
84. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Underdrain Designs
Filter Fabric only wraps the drain layer.
This design allows plant roots to
penetrate subsoils, and improve
infiltration with time
85. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Underdrain Designs
An Older Design Approach
Gravel & Filter Fabric Prevent Root
Penetration to Subsoils. This may be
appropriate in some situations, but
detrimental in others.
86. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 86
Engineered Soils
(Bioretention or Biofiltration Systems)
87. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Bad Soil Mix
Contractor substituted
on-site soil for compost
in the mix to save money
88. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 88
Plant Selections
Illustration: Dan Shaw
•Proper plants improve infiltration
• Rain gardens are not wetlands
• Remember planting zones
• Use pots & plugs, Not seed
89. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015 89
Maintenance – Weeding & Mulching
Routine maintenance is required
Ease of maintenance begins with
thoughtful design
90. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Photo: Lisa Treese, KCMO Water Services
Pervious Pavements
URS Picture
URS Picture
91. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Construction Pervious Concrete
91
Works well when turf grass is
used in conjunction with practice
Collector of sediment and fines
Tends to clog and get
permanently clogged in areas of
high sediment and fines
Aesthetic concerns by residents
Can be costly
Long term maintenance
research has not be addressed
92. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Permeable Pavement– Maintenance
93. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Permeable Pavement
Exfiltration rate varies with
water depth and strata.
With deep trenches acting as the
storage gallery, it appears that
more exfiltration occurs through the
sidewalls than through the bottom.
94. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Permeable Pavement
• Differential settlement occurred
due to aggregate getting into
arch of articulated concrete
block
• Some vendors are still new to
market and have steep learning
curve
95. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Tree Boxes
96. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Construction Tree Boxes
Choosing the correct variety of tree
Interconnected tree boxes vs. individual boxes
Proprietary boxes vs. custom design
Infiltration considerations
Less surface area
Media type
– Water quality or water quantity only
Pretreatment/trash and debris
Enclosing the tree storage
area
• Grated boxes
• Curbs
• Railings
• Mulch or pea gravel
97. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
In Summary…
97
98. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Maintenance
No BMP (green or gray) is maintenance free
Selecting the appropriate type of practice based on maintenance
considerations
Long term maintenance plan
Frequency of maintenance
Equipment need
Routine maintenance
As needed maintenance
Maintenance based on monitored performance
Re-evaluation of practice types
Skilled maintenance providers
98
99. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
$ $ $
GREEN DOES NOT REPLACE GRAY…
Can reduce the capital costs and O & M costs of gray
technology.
100. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
Acknowledgements
100
URS
AECOM
Burnsville, Minnesota
David Dods, AECOM
BARR Engineering
US EPA
City of Columbus, DOSD
CDM
NY DEP
Louisville MSD
Anyone else that we forgot to mention…..Thank you for helping
us promote the wise use of Green Infrastructure!
101. | West Virginia Construction & Design Exposition | March 25th and 26th, 2015
For more information…
101
Contact Kari Mackenbach
info@msconsultants.com
614.898.7100