NJFuture Redevelopment Forum 2016 Forbes
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Presentation from Rebuilding Infrastructure, One Redevelopment Project at a Time
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NJFuture Redevelopment Forum 2016 Forbes
- 1. Rebuilding Infrastructure, One Redevelopment Project at a Time Hoboken’s Perspective NJ Future Redevelopment Forum Friday, March 11, 2016 11:00 a.m. Presentation by Brandy Forbes, AICP, PP 1
- 2. Combined Sewer System Issues CHALLENGE: Areas of Hoboken lie below high tide. The combined sewer system cannot empty out by gravity during high tide, overflowing and causing flooding in the lowest elevation areas in the City. 2
- 3. Flooding From Rain Events 3
- 5. Coastal Flooding Threat Increases with Sea Level Rise Sandy Impact 500 million gallons of water = $500+ million in damage Major hurricane impacts NJ every 5-6 years FEMA estimates a 26% chance of Sandy like flood in next 30 years (That’s two coin flips over the lifetime of a mortgage) 5
- 7. 7
- 8. 8
- 10. Hoboken PATH – 2012 Superstorm Sandy 10
- 11. Hoboken PATH – 1992 Nor’easter 11
- 12. 1959 12
- 13. October 2015 – Hurricane Joaquin 13
- 14. January 4, 2016 – Rain event 14
- 19. Resist: Seating and Planter Feature 19
- 21. Delay/Store/Discharge Southwest Park 1 acre 200K gallons retention 21
- 22. Delay/Store/Discharge BASF Property 6 acres 1M gallons retention 22
- 23. Delay/Store/Discharge City Hall Demonstration Project Rain gardens, cisterns, porous concrete Retains all stormwater from 6-hour long 100-year storm 23
- 24. Delay/Store/Discharge H-5 Wet Weather Pump Station Will alleviate flooding in NW Hoboken Can pump up to 40M gallons/day 24
- 25. Incorporating Delay/Store/Discharge into Development Delay: Green Roof Incentives • Zoning Code changes incentivize green roofs • Applications for more than 10,000 sf of green roofs approved in 3 months Delay: Rain Barrels • Amended Code to allow rain barrels • Hosted Rain Barrel Installation Workshops and distributed 40 rain barrels to participants 25
- 26. Incorporating Delay/Store/Discharge into Redevelopment Plans Hoboken Yards Redevelopment Plan Adopted December 2014 • Stormwater and sanitary sewer pumps to serve this property will be installed by the redeveloper. • Sanitary sewer and storm sewer for the site will be separated. • All elements of the project shall be in compliance with the City’s Flood Damage Prevention Ordinance. A varied mix of stairs, seating levels, irrigated green walls may need to be incorporated to tie the street and sidewalk grade to the interface of the buildings on the project site due to this compliance requirement. Western Edge Redevelopment Plan Adopted August 2015 • Rebuild by Design recommended for the Western Edge area to have a linear park with flood storage. This requirement has become the centerpiece of the Western Edge Redevelopment Plan. • All new construction and substantial rehabilitation shall also comply with the Hoboken Flood Damage Prevention Ordinance. 26
- 27. Incorporating Delay/Store/Discharge into Redevelopment Plans Neumann Leathers Redevelopment Plan Adopted December 2015 • This Rehabilitation Area, covered entirely by buildings, surface parking, roads and sidewalks, is within the City’s most vulnerable flood zone and is an old industrial site. It is unique in that the buildings with substantial historical character will be retained and improved as a part of this Plan. • The Plan will mitigate against flooding by incorporating green infrastructure as well as vegetation to the greatest extent within and around the development, including along sidewalks, rooftop gardens, green roofs and walls, decks, and in the courtyards and open spaces to be created. • All new construction and substantial rehabilitation shall comply with the Hoboken Flood Damage Prevention Ordinance, Chapter 104 of the Hoboken Municipal Code. 27
- 28. 28 Incorporating Delay/Store/Discharge into Redevelopment Plans Southwest & North End Redevelopment Plans Initiating the Planning Process Hoboken is embarking on the planning process for redevelopment plans for both the Southwest Rehabilitation Area and the North End Rehabilitation Area. As these plans are developed, the same principles will be incorporated to address flood damage prevention, stormwater management, and flood mitigation.
- 29. Incorporating Delay/Store/Discharge into Redevelopment Agreements Lorien Lofts Redevelopment Agreement Delay/Store • Passive House construction – self sustaining electricity production, building is fully operational in power outage and may eventually connect to future City microgrid • On-site storm water detention • Low flow fixtures to reduce amount of sanitary sewer in system • Green roofs and rainwater capture and reuse • Flood proofed building to allow for rescue accessibility during flooding 29
- 30. Bijou 7th and Jackson Redevelopment Agreement Delay/Store • 2 acre park negotiated to be constructed by redeveloper • 300K gallons of underground storm water detention • Low flow fixtures to reduce amount of sanitary sewer in system • Green roofs to be installed on building Incorporating Delay/Store/Discharge into Redevelopment Agreements 30
- 31. Incorporating Delay/Store/Discharge into Development and Redevelopment Infrastructure Trust Fund Hoboken is pursuing an option with the State to create an Infrastructure Trust Fund. The concept is for contributions from redevelopers and developers to be collected into this trust to be used for designated infrastructure resiliency projects. • Protecting people that are closer to the water that might not benefit from an in-land Resist protection measure per Rebuild by Design. – Help elevate mechanicals in those buildings. – Install wet floodproofing/dry floodproofing measures per the City’s newly adopted Design Guidelines. • Contributions from developers may go toward additional Delay/Store components such as rain garden construction and underground storage measures. 31
Notas do Editor
- Thank you for having me here today. Hoboken is an urban community on the banks of the Hudson River across from Manhattan. We have a population of over 50,000 in just over one square mile.
- Hoboken’s has a combined sewer system, where both sanitary sewer and stormwater are collected in the same sewer mains. During dry weather all sewerage is collected and pumped to the North Hudson Sewerage Treatment Plant at the north end of the City. During heavy rainfall events at low tide, the sewer system has outfall pipes so the heavy flow in the sewer is screened and flows out to the Hudson River. The challenge is, during heavy rainfall events at high tide, those outfall pipes are underwater and the sewage backs up into the low lying areas in town.
- Hoboken, being right on the Hudson River is therefore particularly vulnerable to flooding. At this point 70% of Hoboken is in the floodplain. The flooding situation is commonly known and reported on regularly.
- Hoboken is not just at risk from rain events. Being on the Hudson River, the City is at risk of storm surge. Storm surge occurs when there are hurricane type conditions and the tidal waters from the river top over the waterfront with wave action. In Hoboken during Superstorm Sandy that occurred from breech points in the north and south and flooded the western side of the City with over 500 million gallons of water. 80% of Hoboken was under water. At that time, the City had one flood pump that could pump only 50 million gallons a day, so between that pump and the draining of the flooded area through the sewer pipes during low tide, it took days before all of the flood water was out of Hoboken.
- It was estimated that Sandy was a 100 year storm—basically a 1% likelihood that a storm of that magnitude could happen in a given year. But with sea level rise, and with major hurricanes impacting NJ every 5-6 years, the likelihood is going to be much greater of a similar devastating event happening.
- The Risk Is Real. As you can see in these Sandy related images.
- Sandy’s Impact included 500 million gallons of water flooding the western portion of Hoboken
- And over $500 million in damage in our City.
- Our critical Infrastructure is in the floodplain.
- Critical Transit is in the floodplain.
- We flood not only from Hurricanes. Sandy isn’t the only time our critical facilities and transit have been at risk.
- There is a long history of flooding in Southern and Northern Hoboken.
- Even with a near miss from Joaquin – Hoboken still experienced minor flooding .
- High Tide event at north end – we’re just a few feet away from flooding without a hurricane.
- Snowstorm surge. PATH has defense, but we don’t have a protection strategy in place.
- After Sandy, HUD held a competition for resiliency projects called Rebuild by Design. The international design firm OMA put forward a project for the Hoboken, Weehawken, Jersey City area that was one of 10 selected winners, awarded $230M to design and construct. This Rebuild by Design project is a 4 part strategy: Resist Delay Store Discharge We are currently working with HUD, the State of New Jersey, and the State’s consultant Dewberry on the feasibility and master planning phase of this project.
- Examples of the resist strategy being incorporated into the existing urban fabric.
- As part of the Delay and Store components, the City is designing parks and improving municipal sites. Southwest park.
- BASF.
- City Hall.
- For discharge, the City is working with North Hudson Sewerage Authority to construct a second pump to alleviate flooding in northwest Hoboken.
- Hoboken is incorporating delay and store strategies into development. Green Roofs. Rain Barrels.
- And Hoboken is incorporating these flood mitigation measures into new redevelopment plans. When Sandy hit, Hoboken was drafting the redevelopment plan for the Hoboken Yards area in southern Hoboken. This includes near the Hoboken Terminal and along Observer Highway. After the devastation that occurred as a result of storm surge coming into Hoboken from this area, the City realized the need to address flooding in more detail in the redevelopment plan. In December 2014 Hoboken adopted the Hoboken Yards Redevelopment Plan that incorporates: Stormwater and sanitary sewer pumps to serve this property will be installed by the redeveloper. Sanitary sewer and storm sewer for the site will be separated. All elements of the project shall be in compliance with the City’s Flood Damage Prevention Ordinance, requiring habitable space and building mechanicals to be elevated above the design flood elevation for the building. A varied mix of stairs, seating levels, irrigated green walls may need to be incorporated to tie the street and sidewalk grade to the interface of the buildings on the project site due to this compliance requirement. And in August 2015 the City adopted the Western Edge Redevelopment Plan. Rebuild by Design recommended for the Western Edge area to have a linear park with flood storage. This requirement has become the centerpiece of the Western Edge Redevelopment Plan. All new construction and substantial rehabilitation must also comply with the Hoboken Flood Damage Prevention Ordinance.
- In December 2015 Hoboken adopted the Neumann Leathers Redevelopment Plan This Rehabilitation Area is covered entirely by buildings, surface parking, roads and sidewalks, and is within the City’s most vulnerable flood zone. This is an old industrial site and is unique in that the buildings have substantial historical character. As well, the uses currently in those buildings include urban manufacturing and industrial arts, which the City wants to retain. Therefore, both the buildings and uses will be retained and improved as a part of this Plan. To offset the costs of those improvements, the plan allows for infill residential development on the existing parking lot on the site. The Plan will mitigate against flooding by incorporating green infrastructure as well as vegetation to the greatest extent within and around the development, including along sidewalks, rooftop gardens, green roofs and walls, decks, and in the courtyards and open spaces to be created. And as with the other plans, all new construction and substantial rehabilitation shall comply with the Hoboken Flood Damage Prevention Ordinance.
- Hoboken also has two rehabilitation areas—Southwest and North End—for which we are working on redevelopment plans currently. As these plans are developed, the same types of flood protection measures will be included. And as we have done in Hoboken Yards and Western Edge, a contribution toward infrastructure improvements may be required based on the review of the project pro forma during the negotiation of a redevelopment agreement.
- Hoboken has also included flood resiliency in negotiating redevelopment agreements, even when the redevelopment plans don’t specifically require such improvements. Lorien Lofts is one example. Passive House construction – self sustaining electricity production, building is fully operational in power outage and may eventually connect to future City microgrid On-site storm water detention Low flow fixtures to reduce amount of sanitary sewer in system Green roofs and rainwater capture and reuse Flood proofed building to allow for rescue accessibility during flooding
- A project at 7th and Jackson Streets in Hoboken under negotiations now would include: 2 acre park negotiated to be constructed by redeveloper 300K gallons of underground storm water detention Low flow fixtures to reduce amount of sanitary sewer in system Green roofs to be installed on building
- Hoboken is pursuing an option with the State to create an Infrastructure Trust Fund. The concept is for contributions from redevelopers and developers to be collected into this trust to be used for designated infrastructure resiliency projects. Protecting people that are closer to the water that might not benefit from an in-land Resist protection measure per Rebuild by Design. Help elevate mechanicals in those buildings. Install wet floodproofing/dry floodproofing measures per the City’s newly adopted Design Guidelines. Contributions from developers may go toward additional Delay/Store components such as rain garden construction and underground storage measures.