Coastal Pathways – Geotextile Rock Revetment
A heavy weight geotextile was required to protect the seawall and backfill from erosion caused by the tidal waves. DuraForce 1200c and TerraTex 900H were selected for this project.
Case Studies
Lunn Ave, Auckland – HaTelit® C
Auckland Transport was looking for a long-term design solution that needed to extend the service life of the pavement while lengthening maintenance intervals. HaTelit C was chosen to perform the task.
Waiari Water Treatment Plant – DuraMesh® MSE Wall
The Waiāri Water Supply Scheme involved developing a water extraction facility on the Waiāri Stream and an underground water pipeline from the plant to service the Papamoa coastal strip growth areas.
Meadowbank Development – Platipus Civil Anchors
Located in the heart of Meadowbank, Auckland, a sports-mad property owner engaged Contrax to construct their own private hockey turf. Contrax was able to quickly and successfully install Platipus Civil Anchors.
Northern Corridor Improvements (NCI) – Erosion & Sediment Control
The Northern Corridor Improvements (NCI) project aims to facilitate inter-regional travel between Auckland and Northland by building a new motorway connection between State Highway 1 and State Highway 18.
St Leger Subdivision – T-Recs TRM & Platipus Anchors
The designer on the project selected T-RECS to be applied to the large swale drain below the stormwater overflow ‘bubble up’ which was a steep slope (approximately 1V:4H).
Escotts Road Development – RainSmart® Stormwater Modules
The Riverside Grove, Tuakau, is a master planned residential development offering new sections ranging from 500m2 to 2000m2. The RainSmart System was chosen as the preferred method of stormwater detention.
Waiomu Valley Road – DuraMesh® MSE System
The Waiomu Valley Road is the route that connects Waiomu with the Waiomu Kauri Grove, this road is the only access to an old farm track that creates an entry way for an upcoming subdivision. A retaining wall was required after it failed and collapsed.
Porowini Avenue, Whangarei – Allan Block®
This project required a 190 metre, long lasting retaining wall, that was aesthetically pleasing, and designed to withstand vehicle surcharge loadings, along with a fence/barrier to protect people from falling.
Longlands Development, Matamata – Triton
The Longlands Lifestyle Village is the latest retirement village based in Matamata, Waikato region, a rural town known for its dairy farming heritage and world famous for providing shelter to Hobbits.
26 Inlet Road, Takanini – Allan Block®
Originally this project was designed using an alternative system. When project engineer Peter Hill, attended the Cirtex Allan Block Seminar with Allan Block President Tim Bott, an Allan Block retaining wall system was considered and deemed the best solution for the commercial development.
Mackay’s to Peka Peka – Platipus® Buoyancy Anchors
As part of a major state highway upgrade, a 300mm gas pipeline needed to be laid through sandy soils that were prone to a high water table and liquefaction.