Guidance for Thin-Layer Sediment Placement

Tidal marshes provide key ecosystem services, but they are threatened by sea level rise. For some of these ecosystems to survive, it will require active management to increase tidal marsh resilience. Thin-layer placement (TLP), an emergent adaptation strategy that mimics natural sediment deposition processes, is one of the only viable options to protect tidal marshes in their current footprint.

This guidance document discusses the potential benefits and tradeoffs associated with TLP projects. It is intended to help restoration practitioners, property owners, coastal managers, and funders better understand this strategy for tidal marsh restoration and resilience in the face of sea level rise.