Cliff Street, Raglan - Coastal Erosion Prevention Works
Client : Waikato District Council.
Discipline : Coastal
Design and construction of erosion protection works along a section of shoreline fronting Cliff Street in Raglan which had undergone active erosion, resulting in loss of reserve and the undercutting of Pohutukawa trees. The construction included a tipped rock revetment along the base of the cliff, incorporating a timber boardwalk along the top and associated access stairs and ramps. The design and construction methods where developed to avoid any adverse effects on the coastal marine environment and to ensure consent compliance during construction. The locally sourced paddock boulders, timber boardwalk and coastal native planting will help to maintain the sites natural appeal.
Assessment of flooding hazard from the Tongariro River in and around Turangi township and design of flood protection works. The project involved hydraulic modelling, geomorphological assessment, assessment of sediment transport and gravel management, detailed design of flood protection works and erosion protection works followed by construction supervision.