Facts and Figures

Port of Kalajoki Ltd



Terramare Oy

Extension of West Quay in Kalajoki | Client: Port of Kalajoki Ltd

Port of Kalajoki has extended the West Quay and harbor basin. Terramare executed the dredging works as well as the construction of a 142-metre long quay extension including a ro-ro ramp at the outer end the quay.

Project's significance

The extension of Port of Kalajoki's West Quay enables simultaneous handling of two large or four smaller cargo vessels in the port, which increases the resources of the port to the steadily growing traffic volume and to the container traffic, launched in summer 2018 .

Project's implementation 
Terramare implemented the extension of the Port of Kalajoki's West Quay. The project consisted of the construction of a 123-metre long quay extension and a 19-metre long transverse quay, including a ro-ro ramp, at the outer end of the extended quay. The quay extension has a total length of 142 metres. The quay extension was implemented as a retaining quay wall. A total of 29 quay wall elements, retaining quay wall and intermediate elements, each 10.2 metres high, were casted in-situ.

The foreground of the quay extension was dredged to the level of -9.5 metres. The dredging masses amounted to 73,000 m3. Underwater drilling and blasting, in which 600m3 of blasted rock was removed, was also implemented at the outer edge of the quay. The floating crane Nosto-Pekka was responsible of installing the quay elements on the dredged and levelled sea bottom of the quay line. Dredging was the responsibility of the backhoe dredger Attila and drilling and blasting was the responsibility of the drill platform Rockbuster.

After element installation and backfilling work, a coping beam was cast on the upper edge of the quay line and an erosion slab cast on the sea bottom in front of the quay. The contract also included the quay's public utility services, surfacing work, asphalting and accessories. The extended West Quay was handed over to the client in June 2019.