Ecological Solutions

 

Our expert team has extensive local and international experience and provide clients with realistic and sustainable ecological solutions. We work with local data and international best practice to inform the design and delivery of innovative ecological management strategies.

  • Terrestrial and aquatic ecosystem assessments
  • Habitat restoration and management plans
  • Environmental impact assessment, mitigation and monitoring

 
For more information contact:

Bronwyn Rhynd
bronwyn.rhynd@ckl.co.nz
P 09 524 7029
M 027 454 5533

Hamish Ross
hamish.ross@ckl.co.nz
P 07 871 6144
M 021 215 6346 
 

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Case Studies


Boundary Road Ecological Assessment

CKL’s stormwater team (previously Stormwater Solutions) was engaged by consultants on behalf of the Boundary Road landowner to provide an ecological assessment of a stream that traverses the site.

In order to fully utilise the development potential of the site, the intention was to divert the stream to a slightly altered alignment, whilst still providing ecological and amenity values, and stormwater conveyance to the downstream receiving environment.

The assessment, conducted prior to the construction of the residential development, provided a baseline Stream Ecological Valuation (SEV). The SEV survey score allowed Ecological Compensation Ratio (ECR) calculations to be performed, which informed the on-site mitigation works and planting.

A planting plan was developed for the stream riparian margins as well as for a proposed wetland, which was created adjacent to the stream for stormwater treatment purposes.

Cape Foulwind

Situated on the west coast of the South Island, overlooking the Tasman Sea, Cape Foulwind is a New Zealand landmark. The surrounding bays are home to a fur seal breeding colony and the coastal landforms have created a well-known surf break.
The escarpment is rich in limestone and the area has been home to a large cement works for nearly 60 years. The cement works closed in June 2016 and the site, encompassing over 500ha of land dominated by an industrial quarry and native bush was to be sold with a view to transform the quarry into a potential residential and recreational development. The quarry will be allowed to fill with water to create a unique lake environment.
CKL was engaged to study the effects of the proposed lake on the surrounding streams and marine environment, in order to design weir outlets structures to manage and control water discharge during various annual storm intervals, including 100-year storm events.
With an engineering and ecological perspective, our multi-disciplinary team conducted a comprehensive assessment of the site, reviewing existing quarry infrastructure, culverts, streams and habitats. The potential effects of increased flow on stream morphology, aquatic habitat values and riparian areas all contributed to the design of weir structures at specific heights on the lake to manage water levels, volume and flow rate on the receiving streams.
As all work was to be conducted within a consented, industrial operation, it was important to complete ecological and engineering reports, which demonstrated how the proposed works were to satisfy the conditions of the existing consent. The next phase of this project will be construction.

Papakura-Clevedon Road, Papakura

The 91-lot subdivision of vacant land in the rapidly growing suburb of Papakura presented unique development challenges. Situated at the intersection of two main arterial roads with restricted access, the development needed to incorporate pedestrian and cycle accessways. The site was also known to experience significant flooding from upstream catchment, requiring comprehensive flood and stormwater management, which included the detention of runoff water within a multipurpose recreation and stormwater reserve.

We brought together a multidisciplinary team comprising CKL planners, surveyors, ecologists, and stormwater and environmental engineers to work with the developers and Council to design a high quality urban development that was sympathetic to the surrounding rural environment.

Our team fully assessed the site and designed a plan to redirect an existing farming channel and create an internal wetland and reserve with stormwater, ecological, and recreational functions. The surrounding residential lots benefitted from the open space; creating a rural/urban interface that sits comfortably in the environment.