Dredging is conducted as needed to maintain the navigational channels and mooring areas.
Dredging ensures safe access for navigators to the waterways of Yarmouth, as well as assisting in maintaining adequate tidal flushing. Tidal flushing:
- Maintains salinity levels
- Maintains dissolved oxygen levels
- Provides adequate nutrient exchange with Nantucket Sound and Cape Cod Bay
Routine maintenance dredging is conducted in Bass River, Lewis Bay, and Parker’s River. The dredge spoils are used to re-nourish area beaches.