on beautiful and farmed land from the environment of the city. In addition, the costs of the compulsory purchase of the land would have been significantly greater than in the fourth option. Another concern was that a steep curve directly after the railway station would cause more wear on both the tracks and the train wheels. This would result in danger of the train tilting, causing a decrease of the efficiency of the engine. The option for the straight railway line had the benefit of an unobstructed view from the station to the traffic on the tracks. The fourth option received the most support, and it was accepted on 26 November 1857. The choice was perhaps also influenced by Knut Stjernvall serving as the technical director of the railway company at the time, whose stepfather Carl Johan Walleen owned Villa Hakasalmi on the western shore of the Töölönlahti bay. The three other options would have required dismantling the villa. Because of the decision, citizens of Helsinki started worrying about the fate of the Kaisaniemi Park located next to the Kluuvi well. It was clear that the railway would override part of the park area. Per the request of the citizens, the railway line was moved slightly to the east in 1859, in order to preserve the two large and beautiful hills in the park. Filling the Kluuvinlahti bay The area where the station was planned to be built was originally seabed. In the 19th century the area was a muddy and stinky water area used as a dump and a public outhouse. Filling the Kluuvinlahti bay originally started already in the 1830s, but the filling really came into action when the railway was being built. The bay was confined at Hakasalmi, ditches were dug into the Kluuvi swamp, and a stone-walled assembly pool was built behind the dam, from where the water was pumped into Töölönlahti by wind power. Many horse cart loads of sand were dumped into the area during the decades. According to the plans in the 1830s, the area to the north of Kaivokatu and to the west of Mikonkatu was to be divided into two blocks, which were named Hyeena ("hyaena") and Hilleri ("polecat"), separated by the street Hakasalmenkatu, now known as Keskuskatu. The decision to build the railway decided the fate of the Hyeena and Hilleri blocks. Knut Stjernvall made the final railway plan in