HomeMy WebLinkAboutExhibit BMIAMIDDA
DOWNTOWN DEVELOPMENT AUTHORITY
Board of Directors
Manolo Reyes
Chairman
Commissioner, City of Miami
Eileen Higgins
Vice -Chairwoman
Commissioner, District 5
Miami -Dade County
Alan 0jeda
Rilea Development Group
Alicia Cervera Lamadrid
Cervera Real Estate
Danet Linares
Blanca Commercial Real Estate
Franklin Sirmans
Perez Art Museum Miami
Gary Ressler
Tilia Companies
Greg West
ZOM Living
Jose Mallea
Biscayne Bay Brewing Company
Marta Viciedo
Urban Impact Lab
Nitin Motwani
Miami Worldcenter Group
Philippe Houdard
Pipeline Workspaces
Richard Lydecker
Lydecker I Diaz
Suzanne M. Amaducci-Adams
Bilzin Sumberg
T. Spencer Crowley III
Akerman
Executive Staff
Christina Crespi
Executive Director
August 19, 2020
U.S. Army Corps of Engineers
803 Front Street
Norfolk, VA 23510-1096
ATTN: Susan L. Conner, Chief, Planning and Policy Branch
Dear Ms. Conner:
The Miami Downtown Development Authority (Miami DDA) is an
independent agency of the City of Miami which represents the economic
engine, cultural and recreational hub of South Florida. Emphasizing our
regional significance, the market value of the properties in Downtown and
adjacent neighborhoods is more than $39 billion, which represents close
to 40 percent of the City of Miami's taxable property value. With a current
population of more than 92,000 that is expected to exceed 110,000 by
2021, Downtown is growing at the rapid rate of 4 percent. Furthermore,
our daytime population of more than 250,000 underscores the importance
of protecting our built and human assets.
On behalf of the Board of the Miami Downtown DDA, we submit the
following comments regarding the US Army Corps of Engineers' Miami -
Dade Back Bay Coastal Storm Risk Management Feasibility Study, or
"Back Bay" Study, and its most recent recommendations (June 5, 2020)
to address storm surge in Greater Downtown. We believe these comments
should be addressed in order to ensure strong and unconditional support
from downtown stakeholders for the Feasibility Study, the Chief Engineer's
Report, and the subsequent authorization and appropriation process with
Congress.
• The TSP, or Tentatively Selected Plan, as proposed now, will have
an overwhelmingly detrimental effect on the entire waterfront area of
Miami DDA district, as well as greater Downtown and the County. A
large floodwall running parallel to our waterfront could significantly
lower property values, block views, damage the recreational boating,
fishing and watersports economy, severely impact the existing
coastal environment, exacerbate flooding from large storm events
and rainfall, and have catastrophic effects on Miami's brand, image
and tourism economy.
• The TSP's implementation of floodwalls south of the river would
effectively end the Brickell Baywalk and render existing marinas
obsolete.
o The Brickell floodwall does not protect Brickell Key, which
houses more than 5,000 people. Nor does it take into
account the Brickell Key Bridge, which is the only ingress and
egress for those residents, especially as an evacuation route
during large storms.
• The TSP's implementation of floodwalls north of the river would significantly impede
connectivity across Biscayne Boulevard from the Central Business District (CBD) to the
waterfront parks like Maurice Ferre, Parcel B and Bayfront, as well as Bayside
Marketplace and American Airlines Arena.
DWNT N
/V11A/VII.
200 S, Biscayne Boulevard, Suite 2929
Miami, FL 33131
Phone: 305.579.6675
Fax: 305.371.2423
Web:: www.miamidda.com
• Both floodwall proposals are contrary to long established public policy.
• Miami -Dade County is in process of developing a Waterfront Recreational Access Plan
(WRAP) which is designed to encourage and facilitate public access to the county's
waterways.
o The floodwall planned for Brickell directly conflicts with the goals of that plan, and
public access points for kayak and paddleboard launches will not be possible nor
permitted.
• The implementation (and construction) of floodwalls would lead to the Toss of marine and
benthic life and habitat, which may be compounded over time as a result of wave reflection
from the seawall and scouring.
• Due to our porous limestone bedrock, the TSP floodwalls could exacerbate flooding from
Sea Level Rise (SLR) and negatively impact our stormwater system by altering existing
drainage systems and watershed flow patterns. Heavy rainfall and runoff could be trapped
behind floodwalls and the cutoff walls that prevent groundwater flows. Even normal
stormwater runoff daylighting to the bay would get their discharge trapped behind the
floodwalls exacerbating water quality problems in a reduced area.
• We have not observed that a floodwall solution is supported by anyone in the public.
o Floodwalls were not a solution that was extensively discussed or vetted at the
public input session held at the Miami Rowing Club in 2018.
o Since that time, we have witnessed widespread opposition to floodwalls from our
stakeholders and residents.
• The results of the 2019 ULI Advisory Services Panel Report on Waterfront Resilience
(attached) do not appear to be incorporated. Significant public involvement was conducted
during this process and the community indicated a strong preference for natural and hybrid
approaches (breakwaters, living shorelines, etc).
o The first recommendation of the study is to: "Embrace the legacy of the waterfront
through design to protect from water, live with water, and create value from water."
The downtown floodwalls do nothing to "create value"; rather, these monolithic and
imposing structures will diminish value and tarnish Miami's waterfront forever.
o Floodwalls are intrusive, basic and inflexible. They do not reflect upon or use any
recent advances in engineering and floodplain management, specifically the Army
Corps "engineering with nature" initiative.
Therefore, in lieu of a floodwall running parallel to Biscayne Blvd in the CBD and another floodwall
in Biscayne Bay running parallel to the Baywalk in Brickell (and cutting off Brickell Key), we
respectfully request that you instead design, engineer and implement a hybrid solution that
includes nature -based features, such as breakwaters, living shorelines, nearshore artificial reefs
and mangrove fringes in coastal areas, and elevated berms and bioswales in upland areas, with
some smaller floodwalls as a layered and tiered defense. This alternative would also be flexible
to future adaptations.
• Similar projects have a proven history of success in mitigating storm -driven fetch and
dispersing wave energy, enhancing the Tong -term structural integrity and viability of gray
infrastructure like flood gates and upland floodwalls, and increasing environmental and
recreational amenities.
• These features should be evaluated as part of the NEPA/EIS process so that the
environmental benefit of such features is thoroughly considered and vetted.
• The USACE's Engineering with Nature Strategic Report, provides that: "Shared visioning
and steering of project design, planning, and construction have been successfully
incorporated to identify, reduce, and mitigate potential barriers to progress and accelerate
completion of projects." In tandem, structural and nature -based features will extend the
life of the seawall, reduce storm impacts and restore some of our disappearing
ecosystems.
• Specific examples of how these benefits can be achieved are provided in the attached
200 S. Biscayne Boulevard, Suite 2929
Miami, FL 33131
Phone: 305.579.6675
Fax: 305.371.2423
We€: www.miamidda.com
DWNTWN
/VIIA/VII_
2019 ULI Advisory Services Panel Report on bolstering Miami's Urban Waterfront. The
conceptual framework outlined in this study demonstrates different nature -based
typologies that deal with the transition from coastal areas to upland infrastructure.
• We have included renderings/images as attachments depicting existing sites along
Brickell, the Miami River and the Central Business District, what they would look like with
the proposed floodwalls, and what they could look like instead with nature -based features
such as breakwaters, living shorelines and mangrove fringes.
o The layout of the nature and natural -based features depicted in the attached
renderings have been designed with preliminary input, particularly in regards to
navigational channels, vessel traffic, dredge sites, Florida Power & Light (FPL)
mitigation areas, a GIS analysis, and recommendations from coastal engineers. A
more thorough and in-depth analysis would be conducted during the next 90%
design phase.
o The breakwaters and upland improvements could be raised over time as sea level
rises; i.e. so we could have different projects designed for 2030 and 2050/2060
projections. This will provide much more flexibility, and will allow a gradual phasing
of changes so that physical upland adaptation is easier.
o These renderings also demonstrate the effectiveness of a hybrid approach which
incorporates (i) breakwaters and living shorelines to reduce wave heights and
wave energy, and to protect the structural integrity of the existing seawall, as well
as (ii) smaller upland retaining walls, (iii) landscape berms, (iv) revised FEMA flood
zone designations and (v) dry floodproofing, to protect against severe hurricanes
and large rainfall evets. When used together, all of these elements can achieve
the desired level of flood protection in a much more sustainable way.
• The proposed Sector Gate at the mouth of the Miami River may hold merit as a needed
infrastructural component for storm surge mitigation.
o However, the associated Pump Station should not be located on either the
historically and culturally significant Miami Circle Park, nor the nearby and much -
utilized Brickell Park.
o We recommend that any pump station infrastructure be located within the sector
gate complex or underneath an existing bridge.
o Elevated parks/green spaces could be considered in the places these structures
are sited to mitigate the visual impact and create recreational space and improve
property values.
• In general, the Back Bay Study should be more closely coordinated with the feasibility
study examining reauthorization of the Miami -Dade County Beach Erosion Control and
Hurricane Protection Project, and the Coastal Storm Risk Management (CSRM) Study for
reauthorization of the Federal beach project in Miami -Dade.
o If these studies are more closely coordinated in a substantive manner, they can
result in recommendations which will better protect vulnerable areas and valuable
property from damages associated with coastal storm surge.
o The Back Bay study should also evaluate nearby Virginia Key and its value, as it
is essentially the first line of defense and a barrier island which protects the
downtown area.
o The Back Bay Study should also be coordinated with the South Atlantic Coastal
Study and the Miami Harbor Navigation Improvement Study to ensure a holistic
approach and integrated solutions that comprehensively reflect all of the USACE's
efforts in the area.
• The Feasibility Study should incorporate the recently completed Miami Baywalk/Riverwalk
Waterfront Design Guidelines (attached) into the design of any coastal floodwalls and
ensure that Natural and Nature -Based Features are included as part of the structural
solution.
• The Feasibility Study should leverage public rights of way to the fullest extent possible so
200 S. Biscayne Boulevard, Suite 2929
Miami, FL 33131
Phone. 305.579.6675
Fax: 305.371.2423
Web. www.miamidda.com
DWNTWN
/VIIA/VII.
that improvements to our streets are made in conjunction with the barriers (both nature -
based and concrete) and can address sea level rise and sunny day flooding, as already
experienced in our region.
• Upland of Biscayne Bay and the Miami River, implement non-structural measures to all
buildings that are in lower elevations; elevating, wet or dry floodproofing and installing
flood panels.
• The Feasibility Study should further investigate buyouts and retreat. Where possible, look
at relocating structures and replacing them with elevated linear parks that can be
inundated during heavy storm events, and percolate/drain over time. This will lead to real
estate appreciation adjacent to new green/open spaces versus real estate depreciation
behind walls.
Because the USACE Back Bay study is in essence an economic study, we urge you to seriously
consider the severe detrimental economic impacts these floodwalls would have to Downtown
Miami. The proper design and implementation of nature -based features, built in conjunction with
needed flood gates, could have a major positive effect on both our economy and the environment,
while protecting downtown's infrastructure, investments and human capital for years to come.
This would significantly increase the BCR for the project and make it more likely to be authorized
and receive appropriations. To the contrary, the devastating impact to property values and
economic activity has not been adequately incorporated into the existing BCR, which as a result
represents an artificially high level that will not withstand close scrutiny.
Finally, thank you for taking the time to understand our concerns. We know that Miami represents
a growing urban area that involves complex challenges, however we are confident that the
USACE will work collaboratively with our stakeholders to ensure infrastructure investments reflect
the needs of our thriving population and help bolster our economic resilience long into the future.
We look forward to working with you as you advance the Back Bay Study recommendations to
construction. In the meantime, please do not hesitate to contact the Miami DDA with any
questions.
Sincerely,
Commissioner Manolo Reyes
Christina Crespi
Chairman Executive Director
cc: The Honorable Rick Scott, US Senator
The Honorable Marco Rubio, US Senator
The Honorable Debbie Wasserman Schultz, US Congresswoman, 23rd District of Florida
The Honorable Fredrica Wilson, US Congresswoman, 24th District of Florida
The Honorable Mario Diaz-Balart, US Congressman, 25th District of Florida
The Honorable Debbie Mucarsel-Powell, US Congresswoman, 26th District of Florida
The Honorable Donna Shalala, US Congresswoman, 27th District of Florida
The Honorable Carlos A. Gimenez, Mayor, Miami -Dade County
Attachments:
Renderings/images no. 1-11
The Urban Land Institute Advisory Services Panel Report: "Bolstering Our Urban
Waterfront"
The Miami Baywalk/Riverwalk Waterfront Design Guidelines
200 S. Biscayne BouBeva rd, Suite 2929
Miami, FL 33131
305.579.6675
305.371.2423
www.miamidda.com
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