Innovative Approaches to Managing Stormwater: Lessons from Rotterdam, New Jersey and New York Learning Lunch: Monday September 19, 2016 City of Hoboken, New Jersey
Innovative Approaches to Managing Stormwater: The Hoboken Approach
Feb 14, 2017
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Innovative Approaches to Managing Stormwater:Lessons from Rotterdam, New Jersey and New York
Learning Lunch:Monday September 19, 2016
City of Hoboken, New Jersey
Population: 52,575Households: 26,855Real Property Ratable Base: $9.7 BillionLand Area: 1.275 Square Miles
Hoboken, New Jersey
Landmass within Flood Zone (A): 63.85%Landmass within Flood Zone (V): 7.41% Landmass within Flood Zone (X): 7.66%Hoboken NFIP Total Liability: $1,922,187,500Hoboken NFIP Annual Premiums: $5,984,720
Flood Risk
Hurricane Irene August 2011
Superstorm Sandy October 2012
Rain EventJanuary 4, 2016
Rebuild by Design Hudson River: ▪ Resist ▪ Delay ▪ Store ▪ Discharge ▪
REBUILDBYDESIGN▪ RESIST ▪ DELAY ▪ STORE ▪ DISCHARGE ▪
HUDSON RIVERHOBOKEN WEEHAWKEN JERSEY CITY │ NEW JERSEY
Rainfall model depicting a 5-year rainfall event (high-tide) “No Action Alternative.”
Model estimates future flood (rainfall) event if Project is not built.
Model assumes Hoboken and NHSA’s existing on-going initiatives WILL be built:• Southwest Park• H1 and H5 Pump Stations• Washington Street Rain Garden• City Hall Green Infrastructure
Washington
Street Rain Gardens
H5 Pump Station
City Hall GI
Project
H1 Pump Station
Southwest Park
Areas that
Flood
Southwest Park
H1 and H5 Pump Stations
Washington Street Redesign
City Hall Green Infrastructure
Baseline Conditions (NAA) Proposed DSD Alternative
WashingtonStreet Rain
Gardens
H5 Pump Station
City Hall GI Project
H1 Pump Station
Southwest Park
BASF Site
NJ Transit Site
Block 10 Site
BASF Site
NJ Transit Site
Block 10 Site
Proposed underground detention facilities with green/open space on ground surface with discharge features such as pumps to manage rainfall runoff volume
ROW Green/Grey Infrastructure Practices
‐ Total of 61 sites to manage street drainage for approx. 13 acres
NJ Transit site
‐ Manages rainfall runoff for approx. 15 acres
Block 10 site
‐ Manages rainfall runoff for approx. 8 acres
BASF site
‐ Manages rainfall runoff for approx. 55 acres
• Integrated flood management solutions to complement RBD
• Proposed a combined surface and sub-surface plan to utilize 4 contiguous acres of the 6-acre BASF site that would include:• Stormwater detention facility• Underground parking garage• Surface park space • Integrated green infrastructure
Re.Invest
N
Northwest Park
• Create an “ecological zone” in part of the H6 and H7 drainage areas
• Would install new storm sewer infrastructure to separate the currently combined system
• Stormwater would flow to the BASF site where solids and floatables would be removed
• Stormwater would be detained under BASF site until the detention facility is at capacity
• New stormwater pump station on BASF site would pump to a new outfall in Weehawken Cove
• Engineered wetlands in Cove would filter stormwater
NHSA Eco-Zone
Jennifer Gonzalez AICP, ENV SP
Principal PlannerCity of [email protected]
www.hobokennj.gov
https://www.facebook.com/hoboken
https://twitter.com/cityofhoboken
https://www.instagram.com/hobokennj
https://vimeo.com/hobokennj
https://www.flickr.com/photos/hoboken
Thank you!
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