sentences:  The tracks in Bushwick Avenue were removed after trains started using Humboldt Street instead between Grand Street and Maspeth Avenue on July 19, 1870.The main line was extended east from Grand and Humboldt Streets over the new extension of Grand Street, opening to the city line (Newtown Creek) on June 9, 1875 and to Newtown on August 1, 1876.The old line to Penny Bridge became the Meeker Avenue Line.