Posted on November 2, 2021
(Oct. 28, 2021) The long-awaited islandwide coastal-resilience plan was released Wednesday afternoon.
The plan, from Arcadis, now lays out a dollar figure for the 40-plus projects aimed at adapting to erosion and flooding from sea-level rise, from nature-based to structural approaches. The total? Nearly $1 billion.
One of the biggest projects is dune nourishment in Madaket, Sconset, at the Sconset wastewater facility, the airport and the north shore. The estimated cost of all that sand: $227 million-$ 255 million for the indefinite lifespan of the projects.
The cost of raising Polpis Road at Folgers Marsh and Sesachacha Pond to expand the wetland is estimated at $58 million-$66 million.
The cost of a flood barrier downtown is $150 million-$ 170 million. The cost to raise Steamboat Wharf is $110 million-$120 million. The cost to raise Easton Street, Hulbert Avenue and Washington Street is $188 million-$205 million.
