Kylmäoja, Vantaa, support by Greenfix 7 erosion prevention mat and coconut roll, erosion protection and plant generation by Covamat Type 3 seed mat. Hyvinkään Tieluiska Oy, constructor.
Kylmäoja, Vantaa, support by Greenfix 7 erosion prevention mat and coconut roll, erosion protection and plant generation by Covamat Type 3 seed mat. Hyvinkään Tieluiska Oy, constructor.