Climate Ready East Boston - Phase I
Phase I was completed in 2017 and developed near- and long-term coastal resilience solutions for the Phase I study area. The report included Jeffries Point, Maverick, Central Square, and Lower Eagle Hill.
Phase II was completed in 2022.
Coastal Resilience Solutions
The City worked in partnership with local residents, businesses, and regional partners to find coastal resilience solutions for Jeffries Point, Maverick, Central Square, and Lower Eagle Hill.final report
Installation of a seven-foot high deployable flood wall across the Greenway under Sumner Street would block the current 1% annual chance flood, with one foot of freeboard. The project would provide immediate protection to:
- almost 4,300 residents
- at least 70 businesses, and
- critical infrastructure for an estimated cost for design and construction of $100,000.
Implementation includes an operational plan for deploying the flood wall in advance of a flood. The East Boston Greenway is owned by the City of Boston and maintained by the Parks and Recreation Department.
Elevating the Harborwalk between Clippership Wharf, Clipper Ship Apartments, and 99 Sumner Street (Hodge Boiler Works), in combination with a deployable flood wall across Lewis Street, would protect residents in these buildings and nearby affordable housing, and the MBTA Maverick Station entrance from flooding damage and disruption.
The estimated cost for design and construction is $500,000 to $900,000 for the berm and less than $150,000 for the deployable flood wall.
To address the Border Street flood pathway, which is at risk of flooding with nine inches of sea level rise (2030s), upfront planning and regulatory measures — including potential changes to designated port areas, the municipal harbor plan, and zoning — may be needed to ensure the integration of public investment and future private waterfront redevelopment into a unified coastal resilience solution.
The next tier of measures would expand the reach of coastal resilience solutions along the study area waterfront. These measures would independently address risks from the 1% annual chance flood with 21 inches of sea level rise (2050s), plus 1 foot of freeboard. With additional flood protection measures in other parts of the neighborhood, their heights would protect up to the 1% annual chance flood with 36 inches of sea level rise (2070s), plus one foot of freeboard.
Elevated parks and pathways at Mario Umana and Shore Plaza would protect critical facilities and vulnerable affordable housing residents. Porzio Park and Massport Harborwalk Park would be elevated to address the flood pathway that could develop through this area with 21 inches of sea level rise (2050s). As existing parks and buildings reach the age where renewal investments are needed, they would incorporate waterfront flood protection measures that tie into the broader system.
Full implementation of near and long-term measures would protect:
- over 13,200 residents
- at least 310 businesses, and
- many critical facilities up to the 1% annual chance flood with 21 inches of sea level rise (2050s), plus one foot of freeboard.
At this maximum level of protection, from a single event these measures would prevent an estimated $1.3 billion in losses.
The gradations of blue in the map show how, with no intervention, the 1% annual chance flood extent changes as sea levels rise. The arrows show the flood entry points and pathways with current sea levels, 9 inches of sea level rise (2030) and 36 inches of sea level rise (2070).
East Boston long-term climate resilient waterfront strategy. Near-term actions would create a coastal flood protection system integrated in a new network of open spaces. This could be extended over time as sea levels rise.