sentences:  Until Victorian speculators constructed new docks and warehousing, this had a watergate into Millbay from which the navy's soldiers embarked for service at sea.A map from the late 1830s shows a small "Union Dock" at Millbay, about which not much is known, but in 1840 an Act of Parliament granted Thomas Gill the authority to build a pier and other works at the mouth of Millbay as well as deepening the creek.Gill had a quarry at the east side of the harbour, and the pier he built, now known as Millbay Pier, was long and was completed in 1844.