Tommabodaån is a Swedish demo area with the general aim to demonstrate the use of a V-outlet dam within order to reduce the transport of sediments to the Tommabodaån stream as well as the overflow through black alder wetland forest.
The site demonstrates the use of a V-outlet dam within order to reduce the transport of sediments to the Tommabodaån stream as well as the overflow through a black alder wetland forest. The site is also a part of the “Save the Immeln” (Rädda Immeln in Swedish) project’s information trail where they have taken different measures to improve water quality and ecological status of the stream.
The site is part of an area that has been identified as a woodland key habitat by Sveaskog. It constitutes predominately of broadleaves (average age of 62) next to the Tommaboda stream. With an area of 3,9 hectares its surrounds parts of the Tommabodaån.
Conduced work and time plan for future activities
- The area has been evaluated and confirmed as a possible demo site within the WAMBAF project (December 2016).
- The site needs a sign with information regarding effects by ditching and adaptations such as V-shaped dams and infiltration (completed October 2017).
- The site is otherwise operational for the field courses within the WAMBAF project (planned for February-March 2018).
- At the site discussions on effects of ditching and adaptation tone can take to reduce or eliminate negative effects on water quality downstream.
Installations of Infrastructure
Signpost at the parking lot will direct visitors towards the demo area at the demo area signs have been put up at the dam and at the black alder swamp forest.
Site will be used for field courses in the WAMBAF project in 2018. It will continue to be used within the Rädda Immeln project information trail to illustrate water management measures to improve water quality and ecological status. The site also has the potential to be used in future field excursions and courses connected with ditching.