Business North September 2024

4 | REGIONAL DEVELOPMENT Waiheke Island Marina: Kennedy Point Project T T Karen Phelps Innovative engineering anchors marina The marina offeris state-of-the-art amenities to boat owners and visitors. The newly completed Waiheke Marina stands as a testament to Kiwi ingenuity and world-class engineering. The 180-berth facility, located in Kennedy Point at the mouth of Putiki Bay in the Hauraki Gulf, faced numerous challenges during its development. However, thanks to the innovative solutions provided by Shorewise Engineering Consultants, the marina has become a reality, offering state-of-the-art amenities to boat owners and visitors. “It was a very challenging project with a very exposed site. The marina’s location required careful consideration of wave attenuation, a critical factor in ensuring the safety and stability of the berthed vessels,” says Rob Brown, Managing Director of Shorewise Engineering Consultants. To address this, Shorewise worked with international partners, including Swedish marina company SF Marina AB, to implement cutting-edge wave attenuation structures. Shorewise Engineering Consultants delivered the design for the wave attenuation structure piling works and the design reports for the wave attenuation structures. The attenuator support piles were up to 1.42m diametres and 36m long. One of the most innovative aspects of the Waiheke Marina is New Zealand’s first floating car park pontoon, office building and café. This unique feature, designed by SF Marina AB, saw the engineering team face additional hurdles due to the site’s limited resources and soft seabed conditions. Although the seabed didn’t require dredging Shorewise Engineering Consultants managed to make the piling for the attenuation structures work for that site via a lot of work and optimisation to find the right outcome for the site and the client. “Because the resources on site were limited, everything needed to be fabricated off site and brought in, so we came up with a method of doing this for the office building/café and towing it to site. We made the entire steel structure of the building using a truss system to provide the strength needed for the building to be floating. This solution not only addresses the practical needs of the marina but also adds a distinctive architectural element to the project. This approach required meticulous planning and coordination to ensure each component could be safely transported and assembled on location.” Shorewise was also responsible for delivering all construction contracts and providing engineer-to-contract services. Rob says this comprehensive involvement allowed for a cohesive approach to problem solving throughout the project’s lifecycle. “We worked through each challenge with the other consultants to consider options that would work. This teamwork was essential in navigating the multifaceted challenges presented by the marina’s unique location and design requirements.” The Waiheke Marina project has been a long-term commitment for Shorewise, with its involvement spanning from late 2019 to mid-2025. This extended timeline reflects the scale and complexity of the undertaking, as well as the on-going support provided by the engineering team. As the marina has opened its berths to boat owners, Rob says it’s proved popular. The facility offers a range of services including fully serviced berths from 10m to 30m in length, temporary berthage for smaller vessels, and modern amenities such as pier-side water and power, high-quality restroom facilities, and a public holding tank pump-out station. “This project shows that we can step up to new challenges and come up with solutions, working on a large multi-phase project over a number of years,” says Rob. “The Waiheke Marina is a good example of Shorewise Engineering Consultants’ engineering ability to overcome complex challenges in marine infrastructure development.” 09 415 8269 o ce@mcbplumbing.co.nz mcbplumbing.co.nz mcbplumbingltd Proud to work with Waiheke Island Marina Plumbing With A Passion www.shorewise.co.nz SPECIALISING IN THE DESIGN OF MARINE STRUCTURES Providing engineering and marina design services to Waiheke Island Marina

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