Element Magazine Winter 2010

Far from ordinary retaining walls…

  • SH20 Manukau Harbour Crossing, Auckland

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    Application: Motorway infrastructure
    Contractor: Gibbons Contractors Ltd
    Product: Diamond Pro™ - Bevelled,
    Colour - Rockface
    Suitability: Diamond Pro has been a cost effective solution for the wall supporting a motorway off ramp on Auckland's Manukau Harbour Crossing. Ranging in height up to 4m, it was constructed without specialist lifting equipment as the blocks are light enough to be lifted manually. Diamond Pro's patented 'rear- lip' technology automatically delivers a uniform setback, making construction quick and easy. The durable face also offers a long life for this structure.

    "Our team have had many years of experience building Mechanically Stabilised Earth - type walls and we strongly recommended the use of Firth Diamond Pro for this project. It was the ideal solution from a structural, aesthetic and financial viewpoint and really shows how well the Diamond Pro product performs for large scale infrastructure type applications. We are leaving the site with a happy client - MHX Alliance."
    Ron Williams, Managing Director - Gibbons Contractors Ltd

  • Tetley’s Quarry, Waitakaruru, Waikato

    retaining2
    Application: Quarry rock tipping platform
    Contractor: Hauraki District Council Construction & Maintenance Unit
    Product: Diamond Pro, Bevelled, Colour - Rockface
    Suitability: Diamond Pro was the ideal choice for Hauraki District Council for this 8m high wall with heavy duty loadings (fully laden trucks) of up to 60 tonne. The acute 7 degree verticality of the wall facing is imperative in the confined space between the crushing plant and the edge of the tipping platform. A durable solution for a wall was required as it will be subjected to hard knocks over its lifetime.

    "These blocks were chosen for their strength, ease of laying and their attractive finished effect. Several options were considered but the Firth blocks proved to be the best. We are very pleased with the result, and the service and assistance Firth has provided."
    Alan Smith, Manager - Tetleys Quarry

  • Glenfield Road Widening Stage 3, North Shore City

    retaining3
    Application: Main arterial road infrastructure
    Contractor: ICB Construction Ltd
    Product: Diamond Pro™, Straight Face, Colour - Rockface
    Suitability: Diamond Pro was a cost effective, good looking solution for a wall extending up to 4.5m in height in an established residential setting in the Auckland suburb of Glenfield. The wall supports a main arterial road, footpath and handrail and was constructed without disrupting traffic flow as the blocks were manually lifted into place without the need for a crane or other lifting equipment.
  • Redwood Cresent Extension, New Plymouth

    retaining4
    Application: Residential subdivision development
    Contractor: AJ Cowley Ltd
    Product: Diamond Pro™ - Stonecut, Colour - Rockface
    Suitability:

    Aesthetic appeal was a key factor when choosing the retaining wall product for a high quality subdivision in New Plymouth. Diamond Pro lends itself to curved, sweeping walls, in this case making an impressive statement. Compared to timber, Diamond Pro was a cost effective solution for the wall, which extends up to 2.8m in height.