sentences:  The Canada Border Services Agency maintains a customs station in St. Croix immediately east of the bridge.During the 1800s, St. Croix developed as an isolated lumbering settlement, however in the 1860s the community was selected for the crossing point for the European & North American Railway (Western Extension) which was constructing a line from Saint John to Vanceboro.At Vanceboro, a sister company's line had opened through to Bangor in 1869.