Follow dam removal and restoration of Lahnasenkoski rapids

This article contains pictures from the Hiitolanjoki Lahnasenkoski construction site. Follow the construction site here – moving around the construction site is strictly prohibited to ensure the safety of all parties! Walking on the scenic path is also prohibited.

The turbines of the Lahnasenkoski power plant, which started in 1911, stopped finally on July 31, 2022.

The construction site already started in July, before the end of the power plant’s operation, with the preparation of construction sites and the start of the work dam.

Preparations are being made to dismantle the turbines, the turbine chamber of the power plant must be allowed to dry. Photos by Hanna Ollikainen

Lahnasenkoski construction site, water runs through the silenced power plant and the dam can be dismantled. Photo Mikko Nikkinen 19 August 2022

The dam disappears from the landscape. Photos by Mikko Nikkinen 23 August 2022

Ritakoski and Kangaskoski acquired ownership of South Karelia Recreation Area Foundation

Ritakoski and Kangaskoski acquired ownership of South Karelia Recreation Area Foundation

The long-prepared and negotiated acquisition of Ritakoski and Kangaskoski in Hiitolanjoki was completed on October 29th, 2019, when the South Karelia Recreation Area Foundation acquired the entire share capital of Hiitolanjoki Voima Oy. Hiitolanjoen Voima Oy is now a subsidiary of the Recreation Area Foundation.

The company owns the buildings and dam structures of the power plants and the properties on which they are located. The Hiitolanjoki river restoration project is proceeding as planned, the power dams will be dismantled and the rapids will be restored, creating plenty of new breeding ground for the Ladoga salmon and trout, and opening up free access to the extensive estuarine waters.

Restoration begins in Kangaskoski

After the design and licensing work, the dismantling of the dams will begin on the lowest barrier elevation, Kangaskoski, in 2021. Each year, work will be carried out at one of the rapids: dismantling and restoration of the Lahnasenkoski dam in 2022 and Ritakoski in 2023. Electricity production will continue at every rapid until its demolition

A multi-year project and several stakeholders in the background

In addition to the authorities, a number of foundations, associations, companies and individuals participate in the Hiitolanioki project. In the end, a state commitment ensured the completion of the project. Sipilä Government’s environmental policy – In addition to financing the project, the purchase and restoration of power plants was supported by a number of public and private donors. To date, WWF Finland and foundation Lassi Leppinen, Savings Bank of South Karelia Foundation, Municipality of Rautjärvi, Simpeleen Osuuspanki, person anonymous, Raija and Ossi Tuulainen Foundation, insurance company Lähi Tapiola, ELY Center, Union of South Karelia, Teemu Juutinen private investor, Ahti Invest  Oy and Signal Partners Oy.

More information

  • Hanna Ollikainen, Managing Director of South Karelia Recreational Area Foundation,, 0408235105
  • Matti Vaittinen, Environmental Manager of the South Karelia Federation,, +358 40 139 0173