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Building better communities with you© 2016 Nitsch Engineering
Building better communities with you
The Permitting Advantages (and Challenges) of Green Infrastructure
SNEAPA 2016
October 20, 2016
Scott D. Turner, PE, AICP, LEED AP NDJennifer Johnson, PE, LEED AP BD+C, CPSWQ
@nitscheng
Nitsch Engineering Building better communities with you
2015 Workload Mix
Private Sector
Public Sector
• Professional Engineers registered in 17 states and the District
of Columbia, and with NCEES
• Offices in Boston, Worcester, Lawrence & Washington DC
• 37 LEED® Accredited Professionals/Green Associates
• 7 Institute for Sustainable Infrastructure ENVSPs
• 100+ LEED Registered or Certified Projects
• Award-winning Sustainable Design Green Infrastructure
Projects
• Leaders in Sustainable Stormwater and Green Infrastructure
• Projects in 18 states and 5 countries
40%60%
Nitsch Engineering Building better communities with you
Project Background
Construction and Site Operation
Project Permitting
Project Background
Owner/Developer
Facility Operator
ArchitectConstruction Administration
Engineer
Project Background
Owner/Developer
Facility Operator
ArchitectConstruction Administration
Local
Hingham, MA
Rockland, MA
State
Mass. EOEEA
MassDOT
Engineer
Project Background
Project Location
Hingham
Rockland
Boston
N
Project Background
Project Location
HINGHAM
ROCKLAND
ACCORDPOND
NORW
ELL
ROUTE 3
HANOVER
N
HANNIGAN(ROCKLAND) RESERVOIR
PROJECT SITE
Project Background
HINGHAM
ROCKLAND
ACCORDPOND
NORW
ELL
ROUTE 3
HANOVER
N
HANNIGAN(ROCKLAND) RESERVOIR
PROJECT SITE
Project Location
HINGHAM
ROCKLAND
NORW
ELL
ROUTE 3
HANOVER
WETLANDS
WETLANDS
ACCORDPOND
BEN MANN BROOK
N PROJECT SITE
HANNIGAN(ROCKLAND) RESERVOIR
Project Background
Project Location
Project Background
Project Location
Why Green Infrastructure
Environmentally-Responsible Approach• Forward thinking owner/developer• Wetland and water supply protection• Suitable site conditions (Great Soils!)
Regulatory Drivers• Challenging stormwater requirements • GI/LID consistent with new (draft) MS4 permit requirements• GreenDOT initiative supports remediating highway runoff
Project Benefits• Both towns assumed to support Green Infrastructure
implementation Benefits to project schedule• Cost savings
Project Background
AW Perry – Innovative Developer
Blue Cross Blue Shield
• First LEED Silver office building on south shore• Parking Deck - Limits amount of land disturbance
Two Pond Park Road • LEED Equivalent
Project Background
Original Project Site Plan
Project Background
Original Project Site Plan
Project Background
Original Project Site Plan
Project Background
Green Infrastructure Elements – Porous Asphalt• ‘Stackable Solution’• Suitable soil conditions• Reduce size + cost closed drainage system
35”
Project Background
Green Infrastructure Elements – Bioretention• Dynamic landscape system with subsurface filtration and storage• Effective removal of sediment, petroleum, and nutrients• Best used as a local stormwater control, relatively small drainage areas• Pretreatment needed – catch basins and/or sediment forebay
Project Background
Construction and Site Operation
Project Permitting
Project Permitting
Conservation Commission
Planning Board
Zoning Board of Appeals
Conservation Commission
Planning Board
Zoning Board of Appeals
Indirect Access Permit
Direct Access Permit
Certificate - Environmental Notification Form
Order of Conditions
Special Permit (Parking)
Special Permit (Signage)
Site Plan Review
Design Review
Order of Conditions
Site Plan Review
Variances
Massachusetts Executive Office of
Energy and Environmental Affairs
Special Permit (Property Use)
Project Permitting
Permitting Requirements - State
Certificate - Environmental
Notification Form
Direct Access Permit
Indirect Access Permit
Massachusetts Executive Office of Energy and
Environmental Affairs
Project Permitting
MEPA Certificate
Project Permitting
Local Permitting Considerations
Hingham• Full-time Planning staff
• Full-time Conservation Agent
• One peer reviewer for all boards (PB, CC, ZBA)
• Separate public hearings for all boards Rockland
• Volunteer Planning Board and Conservation Commission• Two separate (and extremely different) peer reviews• Relied heavily on the engineering peer reviews
• Joint public hearing for Planning Board and ZBA
Project Permitting
Permitting Requirements – Town of Hingham
Conservation Commission
Hingham
Order of Conditions
Planning Board
Site Plan Review
Special Permit (Parking)
Zoning Board of Appeals
Special Permit (Use)
Variances
Project Permitting
Hingham Review and Approval ProcessPlanning, Zoning, Conservation
• Requested additional offset from wetland line – 50 foot undisturbed Buffer
• Confirmed design met MassDEP Stormwater Management Standards and contacted UNH to confirm design assumptions
Requested the following:• Increased filter course
thickness from 8” to 12”
• Clarification on soil testing and infiltration rates
• Back-up distribution pipe in case of porous asphalt clogging
• Increased safety/treatment measures for the fueling area
Project Permitting
Rockland
Conservation Commission
Order of Conditions
Site Plan Review
Design Review
Zoning Board of Appeals
Special Permit (Signage)
Planning Board
Permitting Requirements – Town of Rockland
Project Permitting
Rockland Review and Approval ProcessPlanning and Zoning
Requested the following:• Confirmation that flow to
wetland will meet Rockland volume requirement
• Retrofits of existing developed area to increase treatment
• Increased cover over subsurface infiltration systems
• Increased safety/treatment measures for the fueling area
• General design clarifications on stormwater management system • No major design changes required or concerns with Green Infrastructure
• Confirmed design met MassDEP Stormwater Management Standards and Town of Rockland Stormwater Requirements
Project Permitting
Rockland Review and Approval ProcessConservation
Engineering Peer Review focused on the following:• Wetland impacts and required replication• Wetland buffer preservation and tree protection• Porous asphalt suitability for the project site
Project Permitting
Rockland Review and Approval ProcessConservation Peer Review - Wetland Impacts and Replication
Project Permitting
Rockland Review and Approval ProcessConservation Peer Review - Buffer Protection
Project Permitting
Rockland Review and Approval ProcessConservation Peer Review Water Department
Peer Review Engineer
Water Department
Project Permitting
Rockland Review and Approval ProcessConservation Peer Review – Porous Asphalt Suitability
Project Permitting
Rockland Review and Approval ProcessConservation Peer Review – Porous Asphalt Suitability
Project Permitting
Project Changes Due to Permitting
• Redesign site layout
• Increase retaining wall height
• Convert to standard asphalt within the buffer zone
• Build underground stormwater infiltration system
• Additional cost of apx. $75,000
Project Permitting
Project Changes Due to Permitting
Project Permitting
Permitting Requirements - State
Certificate - Environmental
Notification Form
Direct Access Permit
Indirect Access Permit
Massachusetts Executive Office of Energy and
Environmental Affairs
Project Permitting
Public/Private Partnership - MassDOT
1) Increase visibility from highway 2) Mitigate existing highway run-off
Project Permitting
MassDOT – Trimming Policy
Project Permitting
MassDOT – GreenDOT Initiative
Project Permitting
ROW Landscaping and Stormwater Improvements
Project Permitting
Pre Construction – Right-Of-Way
Project Permitting
Post Construction – Right-Of-Way
Project Background
Construction and Site Operation
Project Permitting
Construction and Site Operation
During Construction – Porous Asphalt
Construction and Site Operation
During Construction – Porous Asphalt
Construction and Site Operation
Post Construction – Porous Asphalt
Construction and Site Operation
Pre Construction – Right-Of-Way
Construction and Site Operation
Post Construction - Right-Of-Way
Construction and Site Operation
During Construction - Bioretention
Construction and Site Operation
Post Construction - Bioretention
Construction and Site Operation
Post Construction - Bioretention
Construction and Site Operation
During Construction – Wetland Replication
Construction and Site Operation
Post Construction – Wetland Replication
Construction and Site Operation
Post Construction – Pavement Transition
Construction and Site Operation
Post Construction – Pavement Transition
Construction and Site Operation
Post Construction – Pavement Transition
Construction and Site Operation
Post Construction – Pavement Transition
https://www.youtube.com/watch?v=V4lJagzSYTk
Construction and Site Operation
Post Construction – Overflow Outfall
Q+A on Green Infrastructure
Scott D. Turner, PE, AICP, LEED AP ND [email protected]
Jennifer Johnson, PE, LEED AP BD+C, CPSWQ [email protected]
• What can other Cities and Towns do to encourage the use of Green Infrastructure?
• What are Planners roles in educating their Town staff, boards and public on the benefits of Green Infrastructure?
• Small MS4s will be required to include LID strategies/Green Infrastructure into Town regulations
• What are the operations and site maintenance considerations for Green Infrastructure?