Page 47: of Maritime Reporter Magazine (June 2018)

SF Marina

Floating Pier: Flexibility for Donsö Harbor Project

SF Marina has built pontoons and ? oating breakwa- × 10 meter pontoon is 1.8 meters tall and weighs almost in Gothenburg.

ters for a range of bespoke marinas designed to suit lo- 200 metric tons, i.e. almost 800 metric tons for the main So far, Donsö’s new harbor has managed to ? nd four cal conditions worldwide, from a ? shing station in the pontoons. regular customers, all ? shing vessels with home ports north of Iceland to the sunny but continually storm-hit “The whole of this is anchored using an anchor in Denmark. The positive ? nancial effects that will

Caribbean. The company has leveraged this experience weighing a total of 360 metric tons and 800 meters of come once supplies, equipment, diesel and everything for the Donsö Harbor Association in a project called Don- 50 mm diameter cable. This means that you need to else are bought on-site will provide the conditions for sö Djuphamn – the deep water harbor project.

watch your step, both when doing the calculations and Donsö to be alive all year round. More berthing also “This project will bene? t the ? shing and commercial when performing the installation,” said Stig Jansson, means that the Donsö shipping companies’ own tank- ? eets, but it will also bene? t other marine traf? c such as Project Manager at SF Marina. ers will be able to come home for viewing and mainte- of? cial vessels. The main aim is to get our ? shing ves- Everything has been manufactured at Wallhamn, nance, instead of being repaired in Denmark and other sels back home, which are over 50 meters in length and Tjörn, which is the site of SF Marina’s production harbors. However, the 130 meter pontoon is just the have a draft of 7 meters. And, of course, other commer- plant, and then transported in several parts to the Go- beginning. The vision is for a further two times 130 cial operators will also have the opportunity to land,” thenburg archipelago. The installation was opened on meters of berthing so that a total of 600 meters can be said Jonas Backman, Chair of the Donsö Harbor As- May 18, with speeches from, among others, Ann-So? e offered, including both sides. This would allow signi? - sociation. Hermansson, Chair of the Municipal Executive Board cantly larger boats to be accepted.

www. sfmarina.com

Here, the depth is 17 meters, which means that it is possible to accept vessels with a draft of 10–12 me- ters – as opposed to other islands in the area where the maximum limit is set at 6 meters.

“It is not just that it would be very dif? cult and costly to build a 10-m high pier at this location. There is a signi? cant difference between a ? oating pontoon and a permanent pier as far as the impact on the environment is concerned,” said Michael Sigvardsson, CEO at SF

Marina.

Floating pontoons of this size gain a protective break- water effect, and spaces are created beneath the pon- toons that provide the conditions for small ? sh and plants to thrive.

The main pontoons are 100 × 10 meters, i.e. 1000 sq. m., while the ‘gangplank pontoon’ is 25 meters in length. This provides 100 meters of pier on the outside, 95 meters on the inside and 35 and 10 meters, respec- tively, on the sidewalls – a total of 230 meters. Each 25 www.marinelink.com 47

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