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Sept Oct 2015 Marina World

The magazine for the marina industry

STUNNING WATERFRONT

STUNNING WATERFRONT DEVELOPMENTS WITH THE SUPERIOR TOUCH Birkenhead Point, Sydney Design led innovation. - Super Elite on water. - Edge II on land. +61 7 5594 8200 info@superiorjetties.com superiorjetties.com

WATERFRONT DEVELOPMENTS Artist’s impression of the marina basin (left) and community dock (below). Building the marina When complete, One°15 Brooklyn Marina will likely increase the number of slips in New York City by 25% and will create the calmest marina basin in New York Harbor. Due to its location within an existing 5 million park, emphasis is on well appointed docks as opposed to lavish immediate landside development and all slips will have water, electricity and Wi-Fi. Sanitary pump-out facilities are also incorporated. A dockmaster’s office provides for on-site marina management, and toilets and showers give slip holders essential amenities. Docks will have gated access and 24-hour security. An historic yacht will be home to the Harbor Club and an additional club with spa, restaurants and event spaces, will be built upland. According to Weykamp, the biggest challenge from a developer’s perspective was obtaining permits in such a high profile, environmentally sensitive location. Sometimes the environmental issues impacted on design factors, although not always negatively. One solution that led to a positive environmental outcome was the decision to use Seaflex moorings for both floating pontoons and floating breakwaters. “The subway runs underneath the entire site so no piles were possible,” Weykamp explains. “But using Seaflex also meant less damage to the seabed.” Rémy Benois, sales and business development for Poralu Marine, Inc, augments this. “We are anchoring our pontoons using Seaflex to meet all the highly technical challenges of the site. Edgewater Resources was looking for a marina that seamlessly integrated into the surrounding landscape but also had to be storm resistant and designed to sustain significant storm events such as Hurricane Sandy.” Poralu is installing its standard aluminium docks with new brown colour Ecostyle polypropylene decking to create the 125-slip marina system. According to Benois, this met the technical and specific aesthetic standards Weykamp was seeking from an architect’s perspective. Key factors were: the company’s knowhow; the flexibility and modularity of its dock system for use in a brand new marina; and the long life expectancy and very minimal maintenance of the equipment required over time. The marina is ADA accessible and due to its wave attenuation system has a calm environment. Breakwaters were required, says Weykamp, to protect the docks from wake created by water taxis. Marinetek North America is using two different systems to build the outer dock. “For the most exposed sections of the marina, we are using our 5300BRK floating concrete breakwater system. This system is 17ft 4in (5.3m) wide, 6ft (1.8m) high and each dock section is 53ft (16m) or 65ft (19.9m) long. The 65ft (19.9m) units each weigh 52.4 tons,” explains Marinetek’s Bob Berry. “The system has twin keels on the bottom, which provide additional wave attenuation and add mass and stability to the dock.” The 3800BR floating concrete system is being used for the less exposed breakwater sections. These units measure 12ft 6in (3.8m) wide x 4ft (1.2m) high and are 53ft (16m) or 65ft (19.9m) long. The longest units weigh 39.2 tons. They have a flat bottom as this provides effective and stable attenuation in more sheltered positions. The docks will be joined together using a maintenance-free, flexible, silent connection system designed for rough water environments and fitted with composite fendering to give a modern appearance. A Seaflex mooring system will run up through the bottom of the dock in a cast-inplace flared tube which feeds to a top-access connection box. “This keeps all anchoring rope and hardware out of sight and out of harm’s way, and provides a very secure and effective anchoring method,” Berry says. “We www.marinaworld.com - September/October 2015 21

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