Sandy Neck Barrier Beach System ACEC Designation Document
Approximate acreage: 9,125 acres
Watershed/subwatershed: Cape Cod/Barnstable Harbor
Municipalities (% of ACEC): Barnstable (90%) and Sandwich (10%)

The Sandy Neck Barrier Beach System ACEC was nominated by the Selectmen from the Towns of Barnstable and Sandwich, and was designated as an ACEC in 1978 because of the area’s extraordinary natural resources. The ACEC boundary generally follows the 100-year floodplain elevation on the landward side and mean low water on the seaward side of the Harbor. Included in the ACEC is one of the largest barrier beach systems in New England. Sandy Neck extends eastward approximately seven miles and shelters Barnstable Harbor and the extensive saltmarsh habitat. This barrier beach is considered relatively stable, helping to establish a variety of natural communities including migrating sand dunes, fresh and saltwater marshes and ponds, wooded swamps, tidal flats, streams, and deciduous and coniferous forests. These areas provide flood control, storm damage prevention, improved water quality, wildlife habitat, and recreation opportunities to surrounding communities.
View full Resource Summary
What coastal resources are included (partially or entirely) in the ACEC?
- Harbors, Sounds, Bays: Barnstable Harbor, Broad Sound (Barnstable); Scorton Harbor (Sandwich)
- Rivers: none
- Lakes, Ponds: none
- Brooks, Creeks: Bass, Boat Cove, Brickyard, Bridge, Eel, Great Island, Mill, Scorton, Smith, and Wells Creeks (Barnstable); Scorton Creek (Sandwich)
Barrier Beaches included in ACEC (Massachusetts Barrier Beach Inventory, CZM, 1982): Sandy Neck (Ba-29, Sd-1), beach on east side of Scorton Harbor running to Scorton Shores (Sd-2), several areas along southern side of Barnstable Harbor (Ba-25,26,27,28)
Outstanding Resource Waters (ORWs): Barnstable Harbor. (ORWs are waters, such as public water supplies and vernal pools that are protected by the most stringent standards because they constitute an outstanding resource as determined by their socio-economic, recreational, ecological, and/or aesthetic values).
Maps
Sandy Neck Barrier Beach System ACEC - Index Map
Sandy Neck Barrier Beach System ACEC Map 22a
Sandy Neck Barrier Beach System ACEC Map 22b
Sandy Neck Barrier Beach System ACEC Map 22c
Sandy Neck Barrier Beach System ACEC Map 22d
Sandy Neck Barrier Beach System ACEC Map 22e
Sandy Neck Barrier Beach System ACEC Map 22f
Sandy Neck Barrier Beach System ACEC Map 22g
Maps are intended to be used with the written boundary description contained in the ACEC designation document. The mapped boundary is not to be used by itself for definitive ACEC boundary delineation or regulatory interpretation. For review of site-specific projects in or bordering the ACEC, determinations must be made in the field by a certified professional in consultation with the appropriate Conservation Commission(s) and ACEC Program Staff.