In 1803, Port of Spain began growing southwards, with the reclamation of the foreshore mudflats, using fill from the Laventille Hills. This began with the area immediately east of the diverted St. Ann's River; the district is still called Sea Lots today. Gradually the landfill crept west and the area south of Plaza del Marina became solid land. Further major reclamation efforts took place in the 1840s, the 1870s, and in 1906. In 1935 the Deep Water Harbour Scheme dredged the offshore area along Port of Spain's western neighbourhoods, and the dredged material was used to fill in the area south of Woodbrook. Wrightson Road, linking downtown Port of Spain to its western suburbs, was constructed at the same time. These reclaimed lands were originally called Docksite, and were home to US forces during World War II; later a number of government buildings were constructed here.