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Aquatic Paradise Canals: Developing a long-term maintenance strategy

Tracks
Track 1
Wednesday, May 10, 2017
1:30 PM - 2:00 PM

Overview

Kyra Stemm, KBR Consultants and Toby Ehrsam, Redland City Council


Speaker

Toby Ehrsam
Coastal Infrastructure Advisor
Redland City Council

Aquatic Paradise Canals: Developing a long-term maintenance strategy

ABSTRACT

The canal system and entrance channel of the Aquatic Paradise Canal Estate, in Queensland, Australia are presently silted to levels well above the intended service levels; restricting the functionality and safe navigation of the estate. Previous maintenance dredging campaigns have been undertaken; however there still remains a need to relieve the bulk of the silt accumulations in key problem areas. This is a common problem faced by local governments and residents in tidal canal estates throughout the South-East Queensland region, and reinforces the need for a carefully planned and sustainable maintenance strategy. The small size of this estate presents a number of unique challenges, which required an innovative strategy to improve the sustainability of maintenance dredging operations. The key to this strategy is the capital dredging of silt storage trenches and the upgrading of the existing silt trap.

Biography

Toby Ehrsam is the Coastal Infrastructure Advisor at Redland City Council. Redland City Council is a coastal council situated between Brisbane and the Gold Coast and encompasses mainland areas, North Stradbroke Island and a number of smaller Islands in Southern Moreton Bay. Toby holds a degree in Engineering majoring in Environmental Engineering. He has occupied his position as Coastal Infrastructure Advisor at RCC for the past 4 years. His current role focuses on managing the three Canal and Lake Estates in the city and is responsible for asset management, maintenance planning and project management of all projects relating to these Canal and Lake Estates. Kyra Stemm is a Coastal Engineer who has worked at KBR for the past 6 ½ years. Kyra completed a bachelor of engineering at Griffith University. Since then she has worked on a diverse range of coastal engineering projects in KBR’s Maritime Group; from major port infrastructure projects, to small coastal processes, shore protection and dredge planning studies. The KBR Maritime Group is the specialist coastal and maritime consultancy of KBR Ltd. In her role in the maritime group, Kyra is responsible for the management of small projects, including a number of Local Government coastal protection projects in the Moreton Bay region. She also has a technical role in coastal engineering, with a focus on hydraulic, hydrodynamic and wave modelling.
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