Built between January 1845 and November 1846 by Robert Francis Withers Allston, this causeway, known as Governor Allston's bank, connected Pawleys Island to the mainland. Allston owned a summer residence on Pawleys Island, was a large property and slave owner in the area, and served as governor of South Carolina from 1856 to 1858. The causeway and contiguous property remained in the Allston family until 1901.