New York clears almost 500,000 m³ of earth, raises a park equivalent to 26 football fields by up to 3 meters, and hides a 2.4 km wall inside to protect 110,000 people from the advancing water.

Climate adaptation project in Manhattan elevates East River Park, integrates flood barriers into the landscape, and transforms recreational areas into coastal defense for Lower East Side residents.

On one of Manhattan’s most well-known shores, New York has decided to transform an entire park into part of the city’s flood defense.

The East River Park, in the Lower East Side, is being rebuilt at an elevation of 8 to 10 feet, about 2.4 to 3 meters, to incorporate a flood barrier within the landscape itself.

The project is part of the East Side Coastal Resiliency, a US$ 1.45 billion initiative created to reduce the risk of coastal storms and tidal surges for more than 110,000 residents and businesses in the area.

The scale helps explain why the project draws attention.

The park covers 45.88 acres, an area equivalent to about 18.5 hectares, roughly comparable to 26 soccer fields.

To raise this urban terrain by the East River, the city’s environmental documents originally estimated about 600,000 cubic yards of fill, while a technical engineering summary of the project cites 650,000 cubic yards of imported material.

Converted, this volume amounts to nearly 500,000 cubic meters.

The goal is not just to create a higher park.

The new configuration hides a flood protection line within green areas, courts, walkways, lawns, movable gates, and sections of wall.

The city describes the ESCR as a flexible barrier of 2.4 miles, about 3.9 kilometers, between Montgomery Street and Asser Levy Playground, at East 25th Street.

Within this system, the East River Park section concentrates a flood wall of about 1.5 miles, equivalent to 2.4 kilometers, integrated into the elevation of the terrain.

East River Park and climate adaptation

East River Park has ceased to be just a recreational strip by the river to also function as an urban protection facility.

In practice, the city is using the terrain’s design as defense: part of the park is elevated, the water encounters a hidden or landscape-integrated barrier, and containment gates can be closed at passage points when there is a risk of flooding.

According to the city hall, the new East River Park is 8 to 10 feet above the original level and “conceals a floodwall that runs through the center,” meaning it hides a protective wall that crosses its central area.

The solution seeks to prevent the shoreline from being treated merely as a wall separating the city from the river.

This type of project gained momentum after Hurricane Sandy, which hit New York in 2012 and exposed the vulnerability of coastal neighborhoods.

The ESCR was created to reduce risks on the east side of Manhattan, especially in the Lower East Side, in an area with housing, parks, roads, public facilities, and housing complexes.

The project’s official page states that the coastal protection is funded by the city of New York and the federal government, focusing on reducing risks from coastal storms and sea level rise between East 25th Street and Montgomery Street.

Construction began in the fall of 2020 and continues in phases.

How New York Raises an Entire Park

The most curious part of the project is the method: instead of building just a visible wall by the water, New York is rebuilding the park on a new elevation.

For this, it was necessary to close areas, remove old structures, install underground infrastructure, prepare foundations, build barriers, and bring in large volumes of fill material.

The technical summary “Raising the East River Park for Resiliency” states that the reconstruction of the section includes 1.24 miles of waterfront park, 1.24 miles of bulkhead, and a 1.5-mile floodwall, in addition to placing 650,000 cubic yards of imported fill to increase the elevation.

The mentioned volume is equivalent to approximately 497,000 cubic meters.

This conversion helps to size the title: it is not about a few truckloads of earth, but an engineering operation comparable to the topographical reconstruction of an entire part of the east bank of Manhattan.

The city also plans movable gates at critical points.

According to the DDC, the ESCR uses elevated areas, floodwalls, berms, and 18 closure gates, which can be sliding or swinging, to form a continuous line of protection against sea level rise and more severe coastal storms.

New Areas Opened in East River Park

Parts of the new East River Park have already been reopened.

In May 2025, the city hall marked the opening of large sections at the southern end of the park, including six official tennis courts, two official basketball courts, picnic and barbecue areas, a nature exploration area, passive lawn, and multipurpose space.

The same announcement stated that about 600 new trees were planted in the open areas, along with more than 21,000 shrubs, grasses, and perennials.

When completed, the new East River Park is expected to receive 1,800 new trees chosen by NYC Parks for their ability to withstand the local environment and the effects of climate change.

The reopening is gradual because the construction occurs in phases.

In September 2024, the city had already opened sports fields 1 and 2 and the new accessible bridge on Delancey Street over the FDR Drive.

In 2025, new areas south of the Williamsburg Bridge progressed, while sections to the north began entering the next phase of closure and construction.

Official updates indicate that, in September 2025, the project fully entered phase 2 in the East River Park, with almost all amenities south of the Williamsburg Bridge reopened and the closure of the park’s northern end.

The city reports that it maintains the requirement of at least 42% open space for public access during construction.

Engineering hidden in the urban landscape

The ESCR combines visible and hidden solutions.

For those walking through the park, the experience should be of everyday use: courts, lawns, accessible bridges, rest areas, paths, and trees.

Beneath and within this landscape, however, are the containment elements that need to function when the water rises.

The city states that the project also improves drainage and modernizes sewer systems.

This is relevant because a coastal barrier does not solve all types of flooding alone.

It helps block river water and tides, but heavy rains may require another response: pipelines, parallel drainage, and systems capable of draining accumulated street water.

Therefore, the project has a front called Parallel Conveyance, aimed at improving the sewage and drainage system during storms.

According to the official page, while areas PA1 and PA2 protect against coastal flooding, tides, and saltwater, this parallel front seeks to protect the community during intense rain events.

The design also includes new bridges and access points.

The city reported that the ESCR replaces four access bridges to the East River Park over the FDR Drive, aiming to make entry more accessible.

The Delancey Street Bridge has already been opened, and the Corlears Hook Bridge appears in official updates as part of the new access points.

Billion-dollar and contested work

Although the city hall treats the East Side Coastal Resiliency as climate adaptation, the project also generated controversy.

The prolonged closure of sections of the park, the removal of trees, construction impacts, and changes to the original design were criticized by residents, urban planners, and community groups throughout the process.

The organization Municipal Art Society, for example, had already raised concerns about the scale of the intervention, the transportation of landfill, the temporary loss of access to the park, and the need for more review and public participation.

The entity cited the estimate of 600,000 cubic yards of landfill and the disturbance of 82 acres during construction.

This point is important to contextualize the project.

While the project aims to protect 110,000 people, it also alters a historic park and changes the residents’ relationship with the riverbank during years of construction.

The city hall argues that the intervention improves access and creates a more resilient public space.

Critics, on the other hand, questioned the cost, the loss of mature trees, and the duration of the closures.

The dispute shows how climate adaptation projects can involve difficult choices between immediate preservation, future protection, and public use.

ESCR Works Continue in Progress

The most recent official update found indicates that, in 2026, works continue in progress in sections of the East River Park.

A document from May 2026 states that the installation of floodwall and floodgate near East 13th and East 14th streets was scheduled to begin at the end of May or in June 2026 and be completed in 2027.

The same material mentions the installation of fencing on bridges and future stages of the amphitheater.

On the project’s update page, the city states that Project Area 2, between East 15th Street and East 25th Street, reached substantial completion in October 2024.

Meanwhile, Project Area 1, which includes most of the East River Park, remains concentrated between Montgomery Street and East 15th Street.

The schedule also changed in relation to previous forecasts.

The May 2025 release stated that the ESCR was projected for completion and full opening of the East River Park in early 2027.

Updates from 2026 still indicate stages with completion expected in 2027, reinforcing that the project continues to be executed.

Elevated Flood Protection Park in Manhattan

The curiosity of the East River Park lies precisely in the inversion of function.

Instead of a square that only receives people, the location also starts to receive heavy infrastructure.

Instead of an isolated wall, New York tries to hide part of the protection within a landscape used for sports, walking, shade, and leisure.

The solution does not turn the park into an absolute guarantee against any flood.

It reduces risks within a designed line of coastal defense, associated with gates, drainage, and new accesses.

It also depends on maintenance, correct operation of the gates, and integration with other urban systems.

Even so, the project shows a trend of coastal cities: adapting public spaces to function in two modes.

On a regular day, they are parks.

On a stormy day, they become part of the barrier.

In Manhattan, this means raising an entire park, bringing in almost half a million cubic meters of landfill, redesigning entrances, hiding walls, and accepting years of construction to try to reduce the impact of the next major flood.