“Krenkku” can be seen as the symbol of the cultural landscape of Kukkolankoski rapids. It is a wooden pier built above the rapids which the fishermen can use to reach further away from the river banks.
A lot of dipnetting spots are located further away from the dry land. The heritage covers the information about these spots and piers are built conveniently to reach them.
The piers are built in the spring, taken down in the autumn and built again the next spring. Building is physically hard work and requires a lot of skill. Functioning co-operation between the fishermen is key in both building and taking down the piers.
The strength of the rapids is great. Even massive structures can be erected by utilizing the stream as support for human muscles. The attachments, the order of building process and the different stages of the work have remained the same for a long time. The ideal technique has been found in the run of several centuries.
Piers come in different sizes and shapes. The parts have certain names that vary in different villages. The structures are made of wood which is used for several years. The condition is checked in the spring and some parts are replaced with new. In the autumn the material is put in storage for the next season.
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