Sompasaari (Swedish:Sumparn) is an island on theKruunuvuorenselkä water area in theSörnäinen district inHelsinki,Finland. On the southern side of the Nihdinkanava channel built in the middle of Sompasaari is the island ofNihti.
The island was originally connected to the mainland with reclaimed land and theSörnäinen Harbour was built on top of it. Because of this, the entire harbour has been referred to as Sompasaari. Signs on roads leading to the harbour used the name Sompasaari exclusively, with an icon representing a cargo harbour. Harbour facilities in Sörnäinen ended in late 2008 when they moved to the newVuosaari Harbour. In 2016 the island was converted to a residential area and it was separated from nearbyKalasatama by digging a new channel called Sompasaarenkanava between them.
The oldest privilege books of Helsinki dating back to 1569 show the name of the island asSompeholmen, and later names includeSompareholmen in maps from the 17th century,Sumparen in 1775 andSumpörn in 1779.Finnish names have includedSumparni andSumppari in the late 19th century. In the early 19th century the island was also calledLowiseholm after its tenant, Kristina Lovisa, wife of marine captainGustaf Wilhelm Sundman.[2] The namesSumppari -Sumparn were made official in 1909 and the island got its current Finnish name in 1928. The Swedish name means acorf and refers to old fish trade; "sump" is originally aLow German word. Thus a more proper Finnish name would be *Sumppusaari.[3]
Sompasaari originally served as a recreational retreat for Helsinkians, accessed by steamship.[4] Almost 30 people lived in the wooden villas on the island in the early 20th century.[4] In the 1920s the island was transferred into the ownership ofElanto.[4]
The flora on the island was exceptionally diverse; it was estimated to contain at least three hundred different species. This was partly because of a garden founded on the island in the 1840s.[4][5]
The high cliffs of Sompasaari were blasted away, ground flat and connected to the mainland[6] when theSörnäinen Harbour was expanded seaward from 1958 to 1962.[7] At the same time all the old wooden houses on the island were dismantled.[6] In the 1960s the island ofNihti to the south of Sompasaari was also connected to the mainland, first connected to Sompasaari through an isthmus.[7][8] Land reclamation use in the area had already been started in the 1950s when two islands,Hanasaari and Kana were combined as the foundation of the new power plant.[5] As well as Nihti, the neighbouring islands ofMustikkamaa andKorkeasaari remain to this day.
Since 2010 the Sompasaari area has been converted to residential use similarly to the neighbouring area ofKalasatama. The first apartments were built in 2018,[9] and the area is intended to be fully completed in 2026.[10] The city of Helsinki has predicted that there will be 3901 people living in the area by 2029.[11]
A park called Loviseholminpuisto will be located in the centre of Sompasaari. The shores of the island contain lots for restaurant ships.[9]
Traffic in the area has been improved in the 2000s. TheKalasatama metro station, opened in 2007, is within walking distance from Sompasaari. The light traffic bridgeIsoisänsilta ("grandfather's bridge") over the Sompasaarensalmi sound to Mustikkamaa was built in 2016. Two perpendicular new bridges are being built in Nihti on the southern part of Sompasaari, the Merihaansilta bridge toMerihaka and the Finkensilta bridge to Korkeasaari, which will become a part of theCrown Bridges tram network between the city centre andLaajasalo. Also the new Kalasatama-Pasila tram line currently under construction is planned to go from Nihti through Sompasaari to the Kalasatama metro station and thereafter throughHermanni toPasila.[12]
Similar toKalasatama, many of the streets in Sompasaari are named after the district's harbour history. Gustaf Wilhelm Sundman, who rented the island from the city in the early 19th century, owned several ships, whose names have been passed to the blocks and streets in Sompasaari: Flöitti Diana, Fregatti Dygden, Kaljaasi Aurora, Priki Johanna and Priki Venus.[13] The Loviseholminpuisto park and the alleys Loviseholminkuja and Loviseholminpolku surrounding it are named after Sundman's wife. The streets Aallonhalkoja, Vinsentinaukio and Vinsentinkatu are named after the character Vinsentti Aallonhalkoja inZachris Topelius's short story collectionTalvi-iltain tarinoita. The collection has a reference to Sompasaari and the observation tower previously located on the island.[13]
60°10′52″N24°58′36″E / 60.18111°N 24.97667°E /60.18111; 24.97667