How does sub‑dune drainage reduce storm damage?

By lowering pore pressure and accelerating drawdown after surge events, reducing dune slumping and scour.

What permits are required?

Typically coastal construction line approvals, environmental permits, and local right‑of‑way permissions.

Name: DUNE Defender
Brand: Solutions4Shore

Governmental resources that demonstrate why dunes are important

to resilient communities and how they mitigate flooding

During Hurricane Sandy (2012), NJ towns with engineered dunes saw markedly less building damage than nearby towns without dunes.
Quantitative studies identify dune width and crest height as strong predictors of reduced damage probability.
Federal and scientific guidance treats dunes as designable risk‑reduction features that limit overtopping/overwash and lower flood exposure (incl. king tides)