Nynäsgård is a station on Stockholm's commuter rail network, located 60.6 km from Stockholm Central Station and 3.3 km from Nynäshamn station on the Nynäs Line. The station has two side platforms and no ticket barriers. As of 2015, the station had approximately 1,000 boardings per weekday. History. The station was originally opened in 1901 under the name "Kullsta," but it was renamed "Nynäsgård" in 1916. The name was derived from the nearby Nynäs estate, home to professor Hjalmar Sjögren, one of the founders of both Nynäshamn and the Nynäs Line. Originally, authorities considered naming the station "Gropen," referring to the excavation through the sand ridge during railway construction, but this was not approved. A station building was moved from Trångsund to Nynäsgård in 1932, along with the addition of an open waiting hall on one gable side. The building was demolished in the early 1970s. The station's single-side platform was upgraded and extended in 2008, and on November 21, 2011, the station was rebuilt with an additional track and platform for passing trains. Railway Museum. The former maintenance facility for Nynäs Line trains, which operated until 1962, now houses the "Nynäshamn Railway Museum" with vintage steam locomotives, railcars, and a preserved roundhouse. The site was designated a listed building in 1999. The museum operates heritage trains on the Nynäs Line on occasion.