The Dryline

Urban flood protection infrastructure

The Dryline

Urban flood protection infrastructure

  • 1 / 22

    The Dryline in New York City, USA

    BIG – Bjarke Ingels Group (Copenhagen/New York) and One Architecture (Amsterdam), in collaboration with the City of New York, propose a protective ribbon in Southern Manhattan using a series of raised berms and other measures to create public spaces along the water’s edge, forming a large-scale integrated flood protection system.

  • 2 / 22

    The Dryline: Global Holcim Awards Bronze 2015 – Project Overview

    A project that addresses New York City’s vulnerability to coastal flooding with a protective ribbon in Southern Manhattan won the global Bronze prize of the LafargeHolcim Awards 2015, the most significant international competition for sustainable design and construction.

  • 3 / 22

    The Dryline: Urban flood protection infrastructure in New York City, USA - Project Update - July 2023

    New planting and seating areas, new paths, and railings as well as a new floodwall and flood gates are part of the new Stuyvesant Cove Park. Image: courtesy NYC Department of Design & Construction.

  • 4 / 22

    Global Bronze Awards 2015 prize ceremony – The Dryline: Urban flood protection infrastructure, New York City, USA

    Winners of the Global Bronze prize of the Holcim Awards: a consortium led by BIG - Bjarke Ingels Group (Copenhagen/New York) and One Architecture (Amsterdam) together with representatives of Holcim, and the Global Awards jury. The Dryline project addresses New York City’s vulnerability to coastal flooding with a protective ribbon in Southern Manhattan.

  • 5 / 22

    Global Bronze Awards 2015 prize ceremony – The Dryline: Urban flood protection infrastructure, New York City, USA

    Presentation to the winning team from The Dryline (l-r): Daniel Zarrilli, Director at the Mayor’s Office of Recovery and Resiliency; Stephen Whitehouse, Starr Whitehouse Landscape Architects and Planners; Bjarke Ingels and Jeremy Siegel, BIG - Bjarke Ingels Group.

  • 6 / 22

    Project entry 2014 North America – Rebuild by Design: Urban flood protection infrastructure, New York, NY, USA

    View of BIG U from The Battery in the financial district. Berms are strategically located to protect the infrastructure below and create a protective upland landscape. The plan envisions a new maritime/environmental education facility. Flood protection in this zone protects USD 1.9 billion in potential damages (NPV), including infrastructure beneath. The system has a benefit-cost ratio greater than 5.0.

  • 7 / 22

    Global finalist entry 2015 - The Dryline: Urban flood protection infrastructure

    The undulating berm in East River Park will rise 15 feet to provide flood protection and connect coast and community. It will support diverse new plantings, provide enhanced prospects on the park, and create social spaces. Existing sports fields will be maintained. Wide landscaped bridges will connect the East River Park to the community.

  • 8 / 22

    Global finalist entry 2015 - The Dryline: Urban flood protection infrastructure

    Reprogramming: Dark spaces below highways are turned into urban community areas.

  • 9 / 22

    Project entry 2014 North America – Rebuild by Design: Urban flood protection infrastructure, New York, NY, USA

    How can the mandate of large-scale protective infrastructure with meaningful community engagement be obtained? How can the requirements of a “Robert Moses” hard infrastructure combined with the local community-driven sensitivity of Jane Jacobs be manifest? BIG U contains a protective ribbon: 21 km (13 mi) of flood protection tailored to each neighborhood and the community it serves.

  • 10 / 22

    Project entry 2014 North America – Rebuild by Design: Urban flood protection infrastructure, New York, NY, USA

    The three components the make up BIG U: BIG Bench, Battery, and Berm.

  • 11 / 22

    Project entry 2014 North America – Rebuild by Design: Urban flood protection infrastructure, New York, NY, USA

    BIG Bench flood protection is designed as if it were street furniture: attractive, fun, practical.

  • 12 / 22

    Project entry 2014 North America – Rebuild by Design: Urban flood protection infrastructure, New York, NY, USA

    Flip-down flood gates double as an art installation or enclosure for a winter market.

  • 13 / 22

    Project entry 2014 North America – Rebuild by Design: Urban flood protection infrastructure, New York, NY, USA

    Dark parking lots beneath highways become an urban marketplace.

  • 14 / 22

    Project entry 2014 North America – Rebuild by Design: Urban flood protection infrastructure, New York, NY, USA

    The Berm increases much-needed park space and connectivity; the highways now hinder pedestrian access.

  • 15 / 22

    Holcim Awards North America ceremony, Toronto, Canada

    Presenting the Holcim Awards Silver (l-r): Enrique Norten, Member of the Board of the Holcim Foundation and Principal & Founder of TEN Arquitectos; Kai-Uwe Bergmann – BIG Bjarke Ingels Group, New York and Matthijs Bouw - One Architecture, Amsterdam – members of the consortium winning Holcim Awards Silver for “Rebuild by Design: Urban flood protection infrastructure”; Alain Bourguignon, Holcim Area Manager for North America and the United Kingdom; and jury member Mark Jarzombek, Associate Dean, School of Architecture & Planning, Massachusetts Institute of Technology.

  • 16 / 22

    Holcim Awards North America ceremony, Toronto, Canada

    Winners of the Holcim Awards (l-r): David Benjamin, The Living, New York – winner of Holcim Awards Bronze for “Hy-Fi: Zero carbon emissions compostable structure”; Caitlin Taylor and Amy Mielke, Water Pore Partnership, New York – winners of Holcim Awards Gold for “Poreform: Water absorptive surface and subterranean basin”; and Kai-Uwe Bergmann – BIG Bjarke Ingels Group, New York and Matthijs Bouw - One Architecture, Amsterdam – members of the consortium winning Holcim Awards Silver for “Rebuild by Design: Urban flood protection infrastructure”.

  • 17 / 22

    Bjarke_Ingels.jpg

    Bjarke Ingles is Founding Partner of BIG, Bjarke Ingels Group based in Copenhagen, Denmark and winner of the Global Holcim Awards Bronze 2015.

  • 18 / 22

    Feature interview – The Dryline: Urban flood protection infrastructure, New York City, USA

    “At one time, Central Park was also just an idea” – Kai-Uwe Bergmann, Bjarke Ingels Group (BIG), USA

  • 19 / 22

    Holcim Awards North America media briefing, Toronto, Canada

    Winners of the Holcim Awards Silver (l-r): Kai-Uwe Bergmann – BIG Bjarke Ingels Group, New York and Matthijs Bouw - One Architecture, New York – members of the consortium winning Holcim Awards Silver for “Rebuild by Design: Urban flood protection infrastructure, New York”.

  • 20 / 22

    “Sustainability? Social solutions for generations to come” – Kai-Uwe Bergmann

    Kai-Uwe Bergmann from Bjarke Ingels Group – BIG proposes a large-scale flood protection system by means of a set of small-scale interventions. “Rebuild by Design: Urban flood protection infrastructure, New York, USA” won the Holcim Awards Silver for civic infrastructure that responds to climate change and rising global sea levels.

  • 21 / 22

    “Sustainability? Bringing all the benefits together” – Matthijs Bouw

    Matthijs Bouw from One Architecture sees the potential for social and economic benefits in the flood protection infrastructure. “Rebuild by Design: Urban flood protection infrastructure, New York, USA” won the Holcim Awards Silver for its innovative hard infrastructure with local community-driven sensitivity.

  • 22 / 22

    Project entry 2014 North America – Rebuild by Design: Urban flood protection infrastructure, New York, NY, USA

    The international team.

  • Awards Bronze 2014–2015 Global
  • Awards Silver 2014–2015 North America

By Daniel Kidd, Kai-Uwe Bergmann, Jeremy Siegel, Thomas Christoffersen - BIG – Bjarke Ingels Group (New York), New York, NY, USA; Stephen Whitehouse, Melon Wedick, Laura Starr, Andrea Parker - Starr Whitehouse Landscape Architects and Planners, New York, NY, USA; Daniel Payne - AEA Consulting, Beacon, NY, USA; Christina Kaunzinger - Green Shield Ecology, Bridgewater, NJ, USA; Byron Stigge - Level Agency for Infrastructure, New York, NY, USA; Matthijs Bouw - One Architecture, Amsterdam, Netherlands; Prem Krishnamurthy - Project Projects, New York, NY, USA; Ivo de Jeu; Bjarke Ingels - BIG - Bjarke Ingels Group, Copenhagen, Denmark; James Lima - James Lima Planning + Development, New York, NY, USA; Edgar J. Westerhof - ARCADIS, USA; Steven Baumgartner - Buro Happold Engineering, New York City, USA

Ideas: Economic & Social Empowerment, Urban Requalification

The Dryline (BIG U) addresses New York City’s vulnerability to coastal flooding with a protective ribbon in Southern Manhattan. The 12 km-long infrastructural barrier incorporates public space with the high-water barrier doubling as parks, seating, bicycle shelters or skateboard ramps.

Embankments add green areas and spaces beneath elevated roadways are built out with pavilions for public use. In an emergency, the shutters close forming a floodwater barrier.

The Dryline

Project authors

  • Daniel Kidd

    BIG – Bjarke Ingels Group (New York)

  • Stephen Whitehouse

    Starr Whitehouse Landscape Architects and Planners

  • DP
    Daniel Payne

    AEA Consulting

  • Melon Wedick

    Starr Whitehouse Landscape Architects and Planners

  • Winner of "Rebuild by Design Urban flood protection infrastructure, NewYork, USA"
    Christina Kaunzinger

    Green Shield Ecology

  • Byron Stigge

    Level Agency for Infrastructure

  • Jeremy Siegel

    BIG – Bjarke Ingels Group (New York)

  • Thomas Christoffersen

    BIG – Bjarke Ingels Group (New York)

  • Holcim Awards North America ceremony, Toronto, Canada
    Matthijs Bouw

    One Architecture

  • Prem Krishnamurthy

    Project Projects

  • Laura Starr

    Starr Whitehouse Landscape Architects and Planners

  • Ivo de Jeu

  • Andrea Parker

    Starr Whitehouse Landscape Architects and Planners

  • James Lima

    James Lima Planning + Development

  • Edgar J. Westerhof

    ARCADIS

    USA

  • Steven Baumgartner

    Buro Happold Engineering

An ingenious solution in an age marked by climate change and rising global sea levels. Holcim Awards 2014 jury for North America

The Dryline: Urban flood protection infrastructure in New York City, USA - Project Update - July 2023

A coastal protection barrier in the form of a huge city park is being designed by internationally renowned architecture firm, Bjarke Ingels Group (BIG) and partners.

Superstorm Sandy overwhelmed New York City and surrounding regions in 2012 and caused USD 65 billion in damages in the USA. The federal government issued Rebuild by Design, an unprecedented call to action to not only repair but to enhance preventative measures and encourage collaboration across agencies.

The Dryline mediates between perceived opposing forces (growing cities and exposure to extreme weather) so they can work together. Neighborhoods in the floodplain can strategically grow to provide coastal protection while improving commercial, recreational, and cultural resources. The project proposes a protective ribbon around Manhattan: the Westside down to The Battery and up the Lower East Side (LES).

The Dryline – BIG’s vision for New York City

The Holcim Awards Silver 2014 winning project for North America addresses the vulnerability of New York City to coastal flooding and proposes a protective ribbon around lower Manhattan. Designed by a consortium led Bjarke Ingels Group (BIG), a project film to document the vision co-developed with the people of New York City was launched at an exhibition of BIG’s work at the National Building Museum.

The Dryline bundles infrastructure with localized civic needs, improving at-risk waterfront communities for well-balanced living. It comprises multiple design opportunities; each on unique scales of time, size, and investment; each neighborhood tailoring its own set of programs.

The Dryline of three components: BIG Bench; Battery; and Berm. BIG Bench is a continuous protective element adapted to local context that mediates new and existing infrastructure. It is designed like street furniture: practical yet playful. The Battery features protective landscape anchored by an iconic museum. The Berm rises 4 meters by the highways allowing a park-scape to connect coast and community with harbor paths and greenways. Ultimately, The Berm will cap the highway.

The Dryline project was submitted in the Holcim Awards 2014 under the title BIG U.

Project Status: Stage One Completed – Mid-2023

Words With Winners

The BIG U project in New York City, designed by the Bjarke Ingels Group (BIG) with multiple international partners, including One Architecture, was recognized with the Holcim Foundation Awards in 2015. Responding to the devastation caused by Hurricane Sandy in 2012, the BIG U addresses the city’s vulnerability to rising sea levels and extreme weather events with a creative solution that could be replicated in other at-risk coastal cities worldwide.

The Holcim Foundation Awards recognized the BIG U project for its innovative approach to integrating what Bjarke Ingels, Creative Director & Founder of BIG, calls “social infrastructure” into what is typically an engineering-driven area of sustainable design. Ingels sits down to discuss the project in detail with the Holcim Foundation.

The Big U avoided any sense of siloed thinking of doing some utilitarian, ugly flood protection, building a wall around Lower Manhattan that incarcerates the life of the city from the water around it. What it aimed to do instead was design all the necessary engineering in such a way that it would also make the city more liveable and more enjoyable for citizens.

The Dryline in USA

The public zones include bike paths, a sloping berm (raised embankment) and new bridges – as well as pop-up sea walls, possibly deployed only during storms.

Holcim Foundation: Could you please share with us the story behind the BIG U.

Bjarke Ingels: Yes. The Big U, or as we have nicknamed it, the Dryline, is the idea of designing all the necessary protection measures for Lower Manhattan so that all of the required engineering is present to withstand the next Hurricane Sandy. We wanted to create a design to make the waterfront more accessible and more enjoyable for all the people who live and work along the waterfront of Manhattan.

You have people from all walks of life inhabiting this waterfront. You have Wall Street investment bankers. Along the Hudson River, you have Battery Park City and Tribeca, a very affluent neighborhood; along the East Side, you have a series of public housing projects. These house some of the more socially challenged inhabitants of Manhattan. Because of the topography of Manhattan, the East Side was the most vulnerable and flooded during Hurricane Sandy.

For a project to keep Manhattan dry, we knew exactly what needed to happen in terms of protection measures. But on the other hand, we knew all the different user groups, all of the different NGOs, all of the various public housing projects, and their representatives – and we wanted to be inclusive with all these groups. We reached out to them and gathered this large group of voices for whom this would be their future waterfront, and we co-designed the Dryline in dialogue with them.

Holcim Foundation Awards 2025

Are you working on a project like this? Enter the Holcim Foundation Awards 2025 and join the ranks of industry-changing winners!

Holcim Foundation Awards Microsite
  • If you have to use resources, then you should use them in such a way that you create the most significant possible benefit.

    Bjarke Ingels | Creative Director & Founder, BIG, Denmark

Project updates