Kaitaia Municipal Treated Water Reservoir

We were commissioned to provide structural design and supervision services for the construction of a new municipal reservoir for Far North District Council.  The brief was to design a square concrete reservoir, which would be embedded into the ground to limit the visual impact on the elevated site. Difficult, given its 24x24x6m dimensions.  The design consisted of pre-stressed precast concrete panel walls which, once in place, were post-tensioned from end to end.  The design was complicated by the very poor ground conditions, requiring a complex design/build solution effectively rafting a large group of piles over a thin layer of sandstone.

This project was a finalist in the ACENZ Innovate NZ 2010 Awards of Excellence.

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Kerikeri Heritage Footbridge

Richardson Stevens Consultants (1996) Ltd was commissioned to develop options for construction of a footbridge to link a DOC reserve, with one of New Zealand’s most important historic sites, the Kerikeri Stone Store, over the Kerikeri River.  Numerous presentations were made to stakeholders; DOC, NZ Historic Places Trust, Local Iwi, Local Kerikeri Basin protection group and the Far North District Council.  The stakeholders chose the most difficult option technically – a single span bridge on the grounds of aesthetics and flood protection, and we were engaged to design the bridge and observe it through to completion on a limited budget and within a strict timeframe.  Aerodynamic effects were a dominant factor in the design.

This project was a finalist in the ACENZ Innovate NZ 2010 Awards of Excellence.

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Langs Beach Estate, Langs Beach, Northland

Langs Beach Estate is a 45 lot subdivision overlooking Langs Beach. Richardson Stevens Consultants (1996) Ltd (RSC) was engaged to prepare a Subdivision Suitability Report for the subdivision consent. Protection of the existing native bush was essential and therefore accessways had to follow existing formed tracks which included one along the top of an old quarry. The greatest challenge with the site was the stability of road cuts and building sites on the many steep sided ridgelines. Considerable design was involved in the construction of a small dam in the quarry and the common recreational area. Consideration was required for stormwater treatment systems that aesthetically enhanced the existing watercourses.

Following approval of the development, RSC were engaged to certify engineering plans, prepare the contract documentation, obtain tenders, liaise with the chosen contractor and supervise construction.  General contract administration for payment claims and certifying were also undertaken by Richardson Stevens Consultants.  Included in the design work were subsoil investigations for geotechnical assessment and structural design of a single lane bridge at the entrance of the development.

Following the successful completion of this development on time and budget, RSC were engaged by the client to report on and supervise construction of Langs Landing - a 45 lot urban development closer to Langs Beach. This development differed from the previous project as the smaller lot sizes were completely serviced by reticulated sewer, water and stormwater systems.  The roading on this site was also to an urban standard with kerb and channel and concrete footpaths.

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Hihiaua Wave and Waka Sculpture

We were commissioned to provide structural design and supervision services for the construction of a major new sculpture in the Whangarei Town Basin.  The structure comprises of a concrete Waka, veneered with Timaru Bluestone, cantilevering out over the Whangarei Harbour, with a ‘wave’ of massive Paradise Quarry Limestone slabs breaking over its stern.  All supported on an array of driven timber piles to provide a solid support base in poor ground.

Quote from WDC Council Connections: “Whangarei’s Waka and Wave sculpture is a pioneering piece of art both in its conception and in its innovative engineering……..

“A waka of stone, not wood, and waves of rock, not water, was a radical and compelling concept and we worked with Maori from across the region to examine the implications. It means different things to different people but I feel the waka going out to sea represents Maori surging forward through the wave of Pakeha culture, and the sea is the Pakeha culture surging around Maoridom. Representing water and wood in stone, concrete and steel gives things which are transient, permanence,” he said.”

This project received the ACENZ Innovate NZ 2010 Community Award presented to Richardson Stevens Consultants (1996) Ltd.

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Whangarei Girls High School Library Extension

Whangarei Girsl High School Library was built in two stages.  This was designed initially by Richardson Stevens to a limited budget, requiring the building to provide for the future addition of a second storey.  The final design incorporated the second storey unispan floor with steel portal framed rafters carrying the roof.  A few years on, as the budget allowed, the roof structure was lifted and the second storey fitted out, by retrofitting portal frame legs to the existing rafters.

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Earth Building

Richardson Stevens have over the years established ourselves in the niche market of eco-friendly building i.e. earth brick and straw bale construction.











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Other projects you may recognise

Award Winning Whangarei Intermediate Toilet Block

Retrofit of Steel framed deck structures to Housing NZ building - Anzac Rd

Dyer St Developments, including the NZ Couriers Building and Northtec

South End Ave Developments

Northport log trailer gantries

And numerous pre-cast concrete panel rotary cowshed structures across the district

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