Siknas batteries 1-4
The fortress at the Siknas peninsula was built as a defence of Tore harbour, the most northern deep-water harbour in Sweden and to delay an enemy advance toward Boden at the E 4. The fortress was the biggest and most modern of the more than 3000 defense objects of the Kalix line.
The four Siknas batteries were built 1953-1960 for the coast artillery as a relief work and are situated at the Siknas peninsula 62-67 meters above sea level. They had a garrison of 322 soldiers and each battery was equipped with a 15,2 cm double gun tower from the broken up armoured cruiser Fylgia. During the 1960-ies the fortress was transfered to the army and became the most southern fortification of the Kalix line.
All the batteries are built of armoured concrete with four or three floors and the stucture rests on springs, free from the rock walls, in order to reduce chock waves in the bedrock. Together with the command central, loading outfit (the stem) and rooms for ammunition. There are sleeping quarters, kitchen and canteen, toilets and showers in each battery + reserve power and a deep sunk well. Also the structures were protected against nuclear, biological and chemical weapons. The last military excercise was carried through in 1990 and the batteries were cut out in 1992 (tower 3 and 4) and in 1998 (tower 1 and 2) from the war organisation.
The Fortification board´s (FORTV) disposal of tower 3 and 4 started in 1999 and they were degassed and sealed up at 4 Dec 2003. The ground was levelled and once again planted.
In 2005 the FORTV sent a request to the Board of National Monuments suggesting tower 1 and 2 as national monuments but in 2008 the government decided not to preserve them because of the costs.
Although in 2009 tower 1 was renovated and tower 2 degassed and sealed up. After consultations with the cultural departement, it was decided that the remains of the fortress could be transfered to a new owner and be used as a museum with support from the National Museums of Military History through Swedish Miltary Heritage (SMHA). During 2011-12 the FORTV renovated the inside of tower 1 and during the autumn 2013 the Owner group Siknas battery bought the fortress. The non-profit-making Association Siknas fortress was given the disposal of the fortress by the Owner group.
During spring 2014 the Association cleaned and repaired tower 1 and the fortress, which now is a part of SMHA, opened to the public on 1 July 2014. During the autumn 2014 the Owner group Siknas battery gave away their shares to the new Foundation Siknas fortress. The activities are still managed by the Association Siknas fortress.
Other defense system
Periodically there were 20 and 40 mm anti-aircraft guns stationed together with the batteries. Locally recruited and Homeguard units were responsible for the outer defense. Fire trenches, shelters and some communication trenches for these units are blasted down in the rocks.