HomeMy WebLinkAboutPC Agenda Packet 2020-11-12AGENDA
PLANNING COMMISSION
Virtual Meeting Location Information: https://www.cityofpa.us/984/Live-Virtual-Meetings
November 12, 2020
6:00 p.m.
I.CALL TO ORDER
II.ROLL CALL
III.PUBLIC COMMENT
IV.APPROVAL OF MINUTES
Minutes of September 23, 2020 and October 13, 2020
V.ACTION/DISCUSSION/WORK SESSION
1.Study Session: 2021 Shoreline Master Program Periodic Update
VI.STAFF UPDATES
VII.REPORTS OF COMMISSION MEMBERS
VIII.ADJOURNMENT
MINUTES PLANNING COMMISSION
Virtual Meeting
Port Angeles, Washington 98362
September 23, 2020 6:00 p.m.
REGULAR MEETING
PLEDGE OF ALLEGIANCE
Chair Schwab opened the regular meeting at 6:00 p.m.
ROLL CALL
Commissioners Present: Andrew Schwab (Chair), Benjamin Stanley (Vice-Chair), Richie
Ahuja, Marolee Smith, Colin Young
City Staff Present: Allyson Brekke (Director)
Emma Bolin (Manager)
Ben Braudrick (Associate Planner)
Chris Cowgill (Assistant City Attorney)
Public Present: John Ralston
PUBLIC COMMENT:
John Ralston, City Resident
John requested that he be interviewed as a stakeholder for the Building Residential Capacity Code
Project.
Chair Schwab closed public comments.
APPROVAL OF MINUTES:
Commissioner Young moved to accept the minutes from the September 9, 2020 meeting with
Commissioner Smith seconded, all were in favor.
ACTION ITEMS
Action: Review and make a motion on Planning Commission Bylaws Amendment (relating to
meeting noticing requirements)
Manager Bolin presented a change to Article IV, Section 5 of the Planning Commission Bylaws
related to consistency in meeting notice requirements. Commissioner Smith expressed that
noticing should all be consistent. Discussion followed, with Assistant City Attorney Cowgill
providing guidance on the Open Public Meetings Act.
Commissioner Smith made a motion to accept the staff recommended changes to Article IV,
Section 5 of the Planning Commission Bylaws. Commission Young seconded, all were in
favor.
1. Work Session: 2020-2021 Planning Commission Workplan
Planner Braudrick provided an introductory presentation on Planning Commission roles and
responsibilities.
Manager Bolin presented the Community and Economic Development Workplan for 2020-2022
and a tentative 4th Quarter 2020 through 2nd Quarter 2021 calendar and meeting schedule for the
PC Meeting Agenda Packet Pg. 1
Planning Commission Minutes
September 23, 2020
Page 2
Planning Commission. Discussion followed.
Chair Schwab asked each member what their top 3-4 priorities for discussion with City Council
in a joint meeting. Commissioners provided the following topics:
Chair Schwab ...................... Code enforcement Regulation
Commissioner Young.......... Food Truck Ordinance, Restaurant seating in onstreet parking areas,
Commercial zoning and activity growth in Western PA, Removal of Parking Requirements
Commissioner Smith ........... Temporary RV Ordinance, Sidewalk and ADA Connectivity,
Evacuation Route, Tree Ordinances
Commissioner Stanley ........ Climate Planning (Inventory and Action Plan), Housing Planning
(Lot Size and Incremental housing), Transportation Planning (Bike/Ped Network)
Commissioner Ahuja .......... Climate Planning, Microentrepreneur Support, Council’s
Understanding of Revenues, Homelessness
Discussion followed.
Chair Schwab asked that Staff provide the City Council with the following a synopsis of what
the Planning Commission could bring to the joint meeting incorporating each Commissioners’
interests for discussion:
1. How is the city going to fund what it wants to do?
2. Climate Planning
3. Housing Planning
4. Transportation Planning
5. Economic development
Planner Braudrick stated that the individual interests would be provided in the minutes, which
could also be provided to City Council.
STAFF UPDATES
Manager Bolin let the Commission know that she was working with the City Clerk to notice the
open Commission seat vacated by Amy Powell. She also updated the Commission on the Climate
Action RFP process underway.
Director Brekke provided a synopsis of the previous night’s Council work session on multimodal
transportation and update on the building residential capacity grant with MAKERS and Downtown
strategic planning effort. She encouraged the Commissioners to watch the previous night’s
presentation and discussion and stated she would make it available.
Associate Planner Braudrick provided an update on Race Street Phase 1 funding and timing.
REPORTS OF COMMISSION MEMBERS
Chair Schwab reminded commission members of the Jurassic Parliament training in October.
Commissioner Young asked about the meeting cancellation necessary for the Jurassic Parliament
Training. Chair Schwab reminded the commissioner that it was on the Planning Commissioners
Workplan calendar and a special meeting would likely be necessary for quorum attendance.
A discussion followed about meeting dates and the holidays.
Commissioner Ahuja thanked staff for the updates. He asked about a Council training that
occurred and if it was available online. Staff let the Commissioners know that they would inquire
PC Meeting Agenda Packet Pg. 2
Planning Commission Minutes
September 23, 2020
Page 3
as to what the training might be and if it was available to the public.
He asked if there were any other reading materials available related to the interests they all spoke
of earlier. Planner Braudrick stated that he would send the Commissioner’s resources via email.
ADJOURNMENT
Commissioner Ahuja made a motion to adjourn. Commissioner Young seconded, all were in
favor.
The meeting adjourned at 7:45 p.m.
Ben Braudrick, Secretary Andrew Schwab, Chair
PREPARED BY: Ben Braudrick, Secretary
PC Meeting Agenda Packet Pg. 3
MINUTES PLANNING COMMISSION
Virtual Meeting
Port Angeles, Washington 98362
October 13, 2020 5:00 p.m.
SPECIAL MEETING
CALL TO ORDER SPECIAL MEETING:
A Special City Council meeting was called for the Commissioners to attend a parliamentary
training facilitated by Ann Macfarlane.
ROLL CALL:
Members Present: Andrew Schwab (Chair), Benjamin Stanley (Vice-Chair), Richie
Ahuja, Steve Luxton, Marolee Smith, Colin Young
Ben Braudrick, Secretary Andrew Schwab, Chair
PREPARED BY: Ben Braudrick, Secretary
PC Meeting Agenda Packet Pg. 4
Thursday, November 12, 2020 | Slide 1Department of Community & Economic DevelopmentCity of Port Angeles | Department of Community & Economic Development
Introduction to the
Shoreline Master Program
Periodic Update
Planning Commission
Work Session Presentation
November 12, 2019
Presented by Ben Braudrick, AICP & Emma Bolin, AICP
Thursday, November 12, 2020 | Slide 2Department of Community & Economic Development
SMA Quickfacts
•Enacted in 1971 (Engrossed
Substitute House Bill No. 584)
•Ch. 90.58 RCW –Shoreline
Management Act
•Ch. 173-26 WAC –Shoreline
Master Program Guidelines
•Ch. 173-27 WAC –Shoreline
Management Permit and
Enforcement Procedures
Thursday, November 12, 2020 | Slide 3Department of Community & Economic Development
SMA Quickfacts
•Regulates all Pacific, Strait of Juan de
Fuca, and Puget Sound Shorelines
and associated wetlands within 200 ft
of Ordinary Median High Water
•Regulates all freshwater streams and
rivers of averaging ≤ 20cfs
Thursday, November 12, 2020 | Slide 4Department of Community & Economic Development
SMA Quickfacts
•Places the responsibility of regulation
on local jurisdiction
•Balances Shoreline Use, Ecological
Protection, and Public Access
•As much as possible, shorelines
should be reserved for "water-
oriented" uses, including those that
are "water-dependent," "water-
related," and for "water-enjoyment.“
Thursday, November 12, 2020 | Slide 5Department of Community & Economic Development
SMA Quickfacts
•All allowed uses are required to
offset adverse environmental impacts
as much as possible and preserve the
natural character and aesthetics of
the shoreline.
•“No Net Loss” of Natural Shoreline
Ecology
Thursday, November 12, 2020 | Slide 6Department of Community & Economic Development
SMA Goal & Purpose
Overarching goal is "to prevent the inherent harm in an uncoordinated and piecemeal development of the state’s shorelines."
1)Recognize and protect the state-wide interest over local interest;
2)Preserve the natural character of the shoreline;
3)Result in long term over short term benefit;
4)Protect the resources and ecology of the shoreline;
5)Increase public access to publicly owned areas of the shorelines;
6)Increase recreational opportunities for the public in the shoreline;
7)Provide for any other element as defined in RCW 90.58.100 deemed appropriate or necessary
Thursday, November 12, 2020 | Slide 7Department of Community & Economic Development
Shoreline Master Program History
•Major local amendments
have been made in:
•1979 (Ord. 2033) –SMA
(RCW and WAC) Adoption
by reference
•1979-80 (Ord. 2033 & 2065)
–County SMP Adoption as
“Urban”
•1997 (Ord. 2951) –Adopt
WAC 173.14-26 Changes by
Reference
Thursday, November 12, 2020 | Slide 8Department of Community & Economic Development
Shoreline Master Program History
•Major local amendments
have been made in:
•2009-11 Public Input and
Harbor Resource Management
Plan Creation
•2011-14 (Ord. 3516) SMP
Creation and Adoption
•2019-21 (8-year periodic
update)
Thursday, November 12, 2020 | Slide 9Department of Community & Economic Development
Focus on Recent Updates
Thursday, November 12, 2020 | Slide 10Department of Community & Economic Development
Mapping the Shoreline
•Reaches
•Segments
•Environmental
Designations
Thursday, November 12, 2020 | Slide 11Department of Community & Economic Development
What is the Shoreline Analysis Report?
•Summarizes existing regulatory
framework
•Inventories and characterizes the
City’s shorelines
•Analyzes and contextualizes the
shoreline’s existing conditions,
functions and impacts at an
ecosystem level.
•Identifies restoration and public
access opportunities
Thursday, November 12, 2020 | Slide 12Department of Community & Economic Development
Shoreline Analysis
Thursday, November 12, 2020 | Slide 13Department of Community & Economic Development
What is the Cumulative Impacts Analysis?
•Builds upon the Inventory & Analysis
•Qualitative and Quantitative Analysis
of Development potential as it
relates to the tenant of “no net loss”.
•Analysis includes:
•Existing Conditions
•Development Potential
•Effects of that development from SMP
provision
•Effects from other activities
•Net EffectS
Thursday, November 12, 2020 | Slide 14Department of Community & Economic Development
Cumulative Impacts Analysis
Thursday, November 12, 2020 | Slide 15Department of Community & Economic Development
What is the Harbor Resources Management Plan?
•Distillation of the inventory and analysis
and cumulative impacts document
•Documentation of public process to
present the findings of existing
conditions, current impacts,
development potential, and restoration
potential
•Results of the public process to identify
public projects for equitable shoreline
access and restoration potential
Thursday, November 12, 2020 | Slide 16Department of Community & Economic Development
Harbor Resources Management Plan
Thursday, November 12, 2020 | Slide 17Department of Community & Economic Development
Harbor Resources Management Plan
Thursday, November 12, 2020 | Slide 18Department of Community & Economic Development
What is the Shoreline Master Program?
•Identifies and categorizes
environmental
designations in different
“Segments” or “Reaches”
of the City’s Shoreline
•Defines shoreline uses
and modification activities
Thursday, November 12, 2020 | Slide 19Department of Community & Economic Development
What is the Shoreline Master Program?
•Provides policy and
regulation of those activities
occurring within shoreline
jurisdiction
•Guides the administration of
“substantial development”,
variance, non-conforming,
and conditional use review
processes
Thursday, November 12, 2020 | Slide 20Department of Community & Economic Development
Shoreline Master Program
Thursday, November 12, 2020 | Slide 21Department of Community & Economic Development
Periodic Update: Methods and Schedule
•$18,340 Grant from Dept. of Ecology in May 2020
•Task 1 –Project management
•Task 2 –Secure Qualified Consultant Services
•Task 3 –Public Participation Plan
•Task 4 –Periodic Review Checklist
•Task 5 –Public Review Process
•Contracted with Watershed Company in April 2020
•Public Engagement Process Fall and Winter 2020-21
•City and Dept. of Ecology using a Joint Review Process
•Submission to Dept. of Commerce in June 2021
Thursday, November 12, 2020 | Slide 22Department of Community & Economic Development
Scope of Periodic Review
Thursday, November 12, 2020 | Slide 23Department of Community & Economic Development
Periodic Update: Mandates & Updates
•Rules and applicable updated guidance adopted between 2007 and 2019 that may trigger the need for local SMP amendments. Some examples
•Substantial development $$$ thresholds
•Changes to allowances, such as dredging disposal methods
•Basic terminology updates, such as nonconforming uses
•Federal Jurisdictions
•Optional: Updates
•Cleanup of some local language and responsible officials
•Revision of mapping
•Revisions related to readability and reducing confusion
Thursday, November 12, 2020 | Slide 24Department of Community & Economic Development
Periodic Update: Gap Analysis
•Ecology Provided Gap Checklist
•2007-19 Legislative Amendments
•Review of City SMP
•Direction/Action necessary to amend SMP
•Staff Created Gap List
•Consistency
•Organization
•Readability
•How to Use Document
•Qualitative Changes
Thursday, November 12, 2020 | Slide 25Department of Community & Economic Development
Map cleanup
Thursday, November 12, 2020 | Slide 26Department of Community & Economic Development
Periodic Update: Public Participation
•Types of Participation Opportunities
•City Website
•Virtual Open House
•Notification of Interested Parties
•News Media
•Stakeholder Engagement
•State Government
•Other Government
•Tribal Government
•City Residents
•Shoreline Businesses
Thursday, November 12, 2020 | Slide 27Department of Community & Economic Development
SMP Resources
City of Port Angeles SMP Page:
https://www.cityofpa.us/141/Shoreline-Master-Program
Department of Ecology Shoreline & Coastal Management Page:
https://ecology.wa.gov/Water-Shorelines/Shoreline-coastal-management
MRSC SMA Page:
http://mrsc.org/Home/Explore-Topics/Environment/Environmental-Laws/Shoreline-
Management-Act.aspx
Ch. 90.58 RCW: https://app.leg.wa.gov/rcw/default.aspx?cite=90.58
Ch 173-26 WAC: https://app.leg.wa.gov/WAC/default.aspx?cite=173-26
Green Infrastructure Storms
Ahead
Cities are using cost-effective, environmentally supportive ways to manage
stormwater.
By Corry Buckwalter Berkooz
How are cities coping with costly and decaying conventional infrastructure? They are going
green in a big way. Philadelphia expects to spend $1.6 billion on green stormwater infrastructure.
New York City's 2010 green infrastructure plan points to a complete overhaul of the city's
stormwater management system. And throughout the U.S. smaller cities and rural areas are
banking on saving dollars by making similar — if more modest — changes.
Many cities — including Portland, Oregon; Philadelphia; Washington, D.C.; and Cincinnati —
have gone green as part of their combined sewer overflow long-term control plans, which they
create to satisfy Clean Water Act and other regulations. And landscape architects, architects,
urban foresters, and engineers have used techniques such as swales, green roofs, pervious
surfaces, and engineered wetlands to solve stormwater management issues for decades. So what
is new here?
Front and center
When stormwater management goes above ground with swales and green roofs, when it takes on
a comprehensive watershed-by-watershed scope and expands to a regional scale, as it has
recently in many cities, green infrastructure becomes a planning concern.
Green stormwater infrastructure copies nature — in contrast to conventional or "gray"
infrastructure such as storage tanks, tunnels, and basins. These typically are needed only when it
rains and overflow must be controlled. However, with a combined sewer system like
Philadelphia's (in which stormwater and sewage have the same infrastructure), back-ups can be
severe.
According to the American Society of Landscape Architects' journal Dirt, when Philadelphia
gets a deluge, more than one-third of the city's businesses and one in four homes face sewage
backup and overflow. The city has been proactively solving this age-old problem with green
tools.
To Glen Abrams, AICP, watersheds planning manager for the Philadelphia Water Department's
Office of Watersheds, the switch to green infrastructure means that planners must collaborate
with other government agencies. "By using green infrastructure design components, we are now
in an era in which we are not able to work just in our single departments," he says. In its Green
Streets program, for example, the water department works with the departments of fire, streets,
and parks and recreation; the planning commission; and the schools, among others, to ensure
complete designs.
With the new complexities, standard review processes are not always satisfactory, says Abrams.
"The design and review processes that we use currently are not entirely appropriate for green
infrastructure projects like our Green Streets program. And that is something that we'll be
working on improving," he says.
Saving bucks
Many communities have concluded that going green is cheaper than staying gray. But there's
more involved.
"In order to be effective, cities need to acknowledge green infrastructure as infrastructure itself
and build it into their capital budgets along with the routine gray infrastructure work," says
Robert Young, who researches urban forestry and green infrastructure practices and is an
assistant professor in the Department of Planning, Public Policy and Management at the
University of Oregon. Another challenge is that "green" means living parts, so the programs need
to budget for maintenance tasks such as watering.
Detroit and New York are among the cities saving money — and seeing other benefits — by
using these new techniques. Detroit recently cancelled two major conventional infrastructure
projects on the city's west side, including the construction of a 7.5-mile-long tunnel (total cost of
terminated projects: about $1.3 billion), and replaced them with an $814 million plan ($764
million in gray, $50 million in green) to solve the same needs. And, since Detroit has an
abundance of vacant land — as much as 30 percent of the city — green infrastructure allows for
spot fix-ups and smaller scale pipe systems.
New York City's Department of Environmental Protection recently identified more than $3
billion that could be saved by changing infrastructure technology. The department's NYC Green
Infrastructure Plan, part of Mayor Michael Bloomberg's 30-year PlaNYC, estimates that a green
strategy would cost about $5.3 billion (including $1.5 billion in public funding), whereas a gray
strategy would cost $6.8 billion.
Other benefits that could accrue over the next 30 years: improved air quality and park
development, totaling hundreds of millions of dollars, according the DEP report, which was
issued last September.
Synergy in NYC
More than a dozen city departments will soon collaborate on green infrastructure planning tasks
in New York. The effort is worth it because, with one of the oldest combined sewer systems in
the U.S. and 8.4 million residents in its five boroughs, the city could save millions through more
cost-effective strategies, according to the NYC Green Infrastructure Plan.
Those savings could accumulate through a combination of green and targeted, smaller scale gray
infrastructure. One aim is to reduce combined sewer overflow volumes by an additional 3.8
billion gallons per year, or about two billion more than an all-gray strategy.
"One of the most exciting aspects is the synergy we get from this plan," says Carter Strickland,
deputy commissioner for sustainability for the Department of Environmental Protection. "The
plan has allowed us to look for existing opportunities around the city, from retrofitting roadways
to adding blue and green roofs to schools." (A blue roof retains rainwater temporarily in order to
slow down runoff or to store water for reuse. A green roof is a planted roof that also slows
stormwater runoff.)
The green infrastructure plan lists multiple agencies with which the Mayor's Office and the DEP
will work, including transportation, planning, design and construction, housing, economic
development, sanitation, and parks and recreation.
Other plan goals include: building cost-effective gray infrastructure; optimizing the existing
wastewater system; and using swales, green roofs, pervious roads, tree plantings, and other
techniques to control runoff from 10 percent of impervious surfaces in CSO areas over 20 years.
The DEP estimates that 52 percent of the land in CSO areas of the city is optimal for building
green infrastructure.
The DEP is waiting for necessary approval from the New York State Department of
Environmental Conservation for the plan, which should be completed "within the year,"
Strickland says. Meanwhile, the DEP has set up an extensive demonstration program that
monitors 20 models of tree pits, street side swales, green roofs, and other items in a variety of
settings.
Over the edge in California
Some site-specific green infrastructure plans can be quite ambitious. The city of Fort Bragg,
California (pop. 7,000), in Mendocino County, has the ideal conditions for a model project: 3.5
miles of rugged coastline; a 150-year-old, 415-acre timber mill site; and — here's a big parking
lot — 45 acres of asphalt to be scraped away.
Georgia-Pacific owned and operated a redwood timber mill on the site from 1973 until 2002 —
continuing an operation begun by a predecessor in 1857. After 2002, the California Department
of Toxic Substances Control directed environmental remediation efforts at the site, and when the
job was completed in January 2010, the land title for 92 acres transferred to the city for creation
of a coastal park.
A surprising fact is that Fort Bragg's entire coastline, stretching the 3.5 miles of the former mill
property, has not been accessible to the public for more than a century. Marie Jones, the city's
community development director, says that lifelong residents who attended the department's
walking tours in the pre-planning phase were moved to tears when they walked to the edge of the
bluff for the first time.
The former mill property makes up one-third of this small city. The redeveloped site will serve
many more than the city's 7,000 residents, Jones says, since the community development
department's service region includes another 20,000 residents and the city attracts more than one
million tourists every year.
The proposed Fort Bragg Coastal Trail, Restoration and Parkland Project will create a 4.5-mile
multiuse trail, recreational open space, interpretive signage, and an ecologically restored native
habitat of rare plants from hand-gathered seeds. Green infrastructure components include 15 soft
vegetative outfalls of wetland plants to facilitate stormwater runoff over the bluff edge to the
Pacific Ocean, many bioswales, roads and trails of pervious materials, and the coastal habitat
restoration of 45 acres of asphalt.
"Handling all the stormwater is a big challenge of the project, since the site is downstream from
350 acres of impervious surface from the old mill," says Jones. "One small drainage area of the
site generates 22 cubic feet per second of water" during a big storm. Overall, however, the
project will be a big change from the current practice of allowing the stormwater to cascade over
the cliff edge into the ocean.
Knowing that weather conditions can be daunting, the city experimented by planting a small test
plot for a vegetative outfall. Heavy rains washed almost everything away within three days.
"We have to plan for the worst-case scenario because often the first storm here is a big storm.
The first storm this year was seven inches of rain in a week. We reconsidered the design and are
putting in asphalt berms upstream from the site so we can steer all the stormwater into the bio-
swales," says Jones.
The new park will cost an estimated $5.8 million. Funding will come from the state ($4.85
million), a federal appropriation for design and environmental reviews ($750,000), and the city's
general fund. Construction will begin in April 2012, according to Jones.
Philadelphia tests the options
An early adopter of green practices, Philadelphia created its Office of Watersheds in 1999. The
goal was to coordinate the city's projects in eight "land-based green programs": streets, schools,
public facilities, parking, alleys, businesses, residences, and public open space.
Philadelphia (pop. 1.5 million) is downstream from everyone else in their shared watersheds,
according to watersheds planning manager Glen Abrams. So one aim of the new Green City —
Clean Water program is to work with neighboring communities and suburbs to make sure that
stormwater runoff is relatively clean by the time it hits Philadelphia's storm sewers. The water
department's CSO area includes 40,500 acres (63 square miles) in portions of four watersheds
that are located within the city limits.
The department conducted a "triple-bottom-line analysis" of the economic, environmental, and
social benefits of installing green infrastructure. It concluded that a 50 percent green option
would bring bigger benefits in all three categories than a 30-foot tunnel would.
As of this writing, the city already has completed many projects, including 20 tree trenches, 12
rain gardens, 13 sidewalk stormwater planters, seven stormwater bump-outs and infiltration
trenches, three vegetated swales, eight pervious pavement projects, and two constructed
stormwater wetlands. The total drainage area of these systems is around 7.5 million square feet.
Many of these efforts have been part of the city's Green Streets program, which aims to capture
stormwater run-off in site-specific situations, where one-size-fits-all solutions often don't work,
Abrams says.
What does a green street do, exactly? According to the water department's website, "a green
street captures stormwater runoff from streets and sidewalks, infiltrates it into the soil to recharge
groundwater and surface water, reduces the amount of polluted stormwater runoff going into
Philadelphia's combined sewer system, and reduces combined sewer overflow events. In
addition, green streets can be designed to improve pedestrian and bicycle safety, improve air
quality and help alleviate the Urban Heat Island effect by reducing air temperatures, and enhance
the aesthetics of the right-of-way."
In this complex urban context, experimentation is necessary. Lisa Beyer, landscape architect,
planner, and on-site consultant for the Office of Watersheds, tests which plant species can endure
the hostile conditions of Philadelphia streets, including soil that occasionally can be very dry.
Beyer is developing what she calls a "stormwater tree" list to discover which trees do best in her
city's stormwater trenches. The test will take about three years, during which time she will be
working closely with city planners, engineers, and the Pennsylvania Horticultural Society.
Detroit simplifies and diversifies
In Detroit (pop. 910,848), where cost savings are paramount, several stormwater management
agencies are recasting costly projects into more affordable green ones, says Chuck Hersey,
manager of environmental programs for the nonprofit South East Michigan Council of
Governments. His organization is working with the Detroit Water and Sewerage Department and
the Michigan Department of Natural Resources to get the work done.
According to its 2009 CSO report, the Detroit sewerage and water department will reduce
combined sewer overflow volumes by 10 to 20 percent, and the city will use "smaller and more
cost-effective gray CSO facilities to store and treat the stormwater that gets into the sewers."
As redesigned, the project cost for conventional infrastructure elements, such as basins, facility
improvements, and new tunnels, is estimated at $764 million, and another $50 million will be
spent on green infrastructure elements. This $814 billion, 25-year project will replace a $1.3
billion gray-only infrastructure system. The CSO plan costs will be underwritten by low-interest
loans, grants, foundation support, and private agencies like utility companies that are seeking
carbon credits. Average annual costs could drop from $192 million a year to $33 million a year,
according to the report.
In a city with a lot of vacant land and ongoing population losses, Detroit's stormwater
management agencies are forced to target specific areas that need water and sewer services
anyway. "This is part of rightsizing because we are framing the issue with how many people
were living in the area at its peak compared to how many people are living here now," says
Hersey.
Immediate projects in green infrastructure construction will include disconnecting residential and
municipal downspouts, working with the city's building demolition program to include pervious
land cover after deconstruction, and installing tree trenches, bio-swales, and new tree plantings,
according to the city's report.
The message seems inescapable. Regardless of the scale — from a specific site to an entire
region — green infrastructure has a lot to offer traditional stormwater planning practices.
Corry Buckwalter Berkooz is a planner and writer in Ann Arbor, Michigan.
Room to Grow
Green infrastructure is a growing field for planners as well as others. That point was
implicit in 2008, when the American Planning Association created the National
Infrastructure Investment Task Force to examine the state of infrastructure in the U.S.
"There is an enormous range of possibilities for planning in green infrastructure," says
Marita Roos, AICP, principal landscape architect at UrbanBiology in San Antonio,
Texas, and an APA task force subcommittee member. The final APA report,
Rebuilding America, published in 2010, notes that most green infrastructure planning is
done at the county and municipal levels as part of a land-use planning process, and that
the effort tends to overlap jurisdictional boundaries. Further, there is no one-size-fits-all
solution to every problem because local conditions determine everything.
Roos says that her subcommittee concluded that green practice is still very much a
fledgling field in the U.S. "There is not a lot out there in terms of standards," she says.
"Most green infrastructure programming is being done outside the U.S., and we have a
lot to learn." Roos cites Malmo, Sweden, and Curitiba, Brazil, as outstanding examples
of cities that have undertaken huge initiatives.
Many city codes need revision in order to implement green infrastructure strategies,
according to the APA committee. "Planners can help to update codes in jurisdictions
that still prevent the reuse and recycling of gray water, for example," says Matt
Bucchin, AICP, principal planner for Forsyth County, Georgia, and an APA
infrastructure task force subcommittee member.
Planners also see the bigger picture. "Planners are uniquely positioned to facilitate
moving ideas to decision makers at the comprehensive scale level so that landscape
architects, engineers, and architects can enact the work," Bucchin says.
RESOURCES
Images: Top — Fort Bragg, California, has a major asset: a 3-5 mile stretch of coastline that is
being redeveloped into a trail and park where stormwater will be handled in a green way. Photo
Kenneth and Gabrielle Adelman, Coastal Resources Project. Middle — From New York City's
green infrastructure plan: a low-density residential street with an enhanced tree pit. Photo NYC
Department of Environmental Protection. Bottom — A one-acre wetland in Philadelphia's Saylor
Grove section of Fairmont Park was designed to treat part of the 70 million gallons of
stormwater in the sewershed. Photo Philadelphia Water Department.
On the web: APA's Rebuilding America report is at www.planning.org. A green infrastructure
encyclopedia is at www.greeninfrastructurewiki.com.
Greeninfrastructure.net is a joint project of the Conservation Fund and the USDA Forest Service.
The Center for Watershed Protection (Maryland): www.cwp.org
Green infrastructure in the Midwest: www.greenmapping.org
NYC's green infrastructure
plan: www.nyc.gov/html/dep/html/stormwater/nyc_green_infrastructure_plan.shtml.
Philadelphia Office of Watersheds: www.phillywatersheds.org. University of Oregon's
Sustainable Cities Initiative linking practice with academics: www.sci.uoregon.edu.
See reports from the South East Michigan Council on Governments at www.semcog.org.
A new report by the Center for Neighborhood Technology and American Rivers, "The Value of
Green Infrastructure: A Guide to Recognizing Its Economic, Social and Environmental
Benefits," places an economic value on the benefits provided by green infrastructure. Download
the guide at www.cnt.org/repository/gi-values-guide.pdf.
In print: Green Infrastructure. Linking Landscapes and Communities by Mark A. Benedict and
Edward T. McMahon (Island Press, 2006).
Evolving sets of guidelines for green infrastructure are included in the principles of the U.S.
Green Building Council's LEED rating system, the Sustainable Sites Initiative developed by the
American Society of Landscape Architects (Guidelines and Performance Benchmarks, 2009
report), and the ICLEI STAR Community Index.
Another rating system, from Harvard: Zofnass Rating System for Sustainable
Infrastructure: www.gsd.harvard.edu/research/research_centers/zofnass/about.html.
The Chicago Department of Transportation's "Green Alley Handbook" is an action guide with
design ideas, materials, and plans for transforming 1,900 miles of Chicago's public alleyways
into permeable surfaces to manage flooding.