The EDC Civil team highlights the importance of a collaborative approach, innovative solutions, and forward-thinking in overcoming the challenges of flooding mitigation and infrastructure planning. By addressing key issues early and working closely with all stakeholders, successful outcomes can be achieved that benefit both our clients and the community.
Flooding Mitigation: Kirkbride Road, Mangere Bridge
Flooding mitigation is a critical aspect of urban development, especially when dealing with marginal pieces of flat land that are prone to significant flooding and infrastructure capacity problems. This project exemplifies how a collaborative and multidisciplinary approach can lead to successful outcomes, even under tight time constraints.
Approach: We tackled key issues straight away By taking the initial sound engineering concepts to the council for consultation, we ensured that all main areas of concern or risk were addressed in the early stages of the project. The final design and construction observations required fine tolerance for a very low gradient drainage system.
Outcome: We achieved a development with maximum housing density without compromising the underlying engineering solutions. Consenting and construction were completed within a very short timeframe despite the significant challenges at the site.

3D Modelling & Drainage: Dallington, Christchurch
During this project we faced capacity restrictions in the existing Council infrastructure and flooding issues due to the adjacent stream, limiting development options.
Approach: We developed concepts for a bridge over the stream and connected it to infrastructure assets not initially intended for servicing an intensive development at the site. The complexity required 3D modelling of drainage, roading, and flooding. The proposed design involved widening an existing road and integrating it into a new bridge with services across the stream to provide safe and efficient access to the land.
Outcome: We facilitated a high-intensity development that incorporated attractive landscaping near the natural stream habitat and appropriate environmental controls to minimize adverse impacts.

Rural Subdivision Accessway: Awakeri, Bay of Plenty
For a rural subdivision, we needed to convert a very long private shared accessway along steep terrain into a shared accessway to service a subdivision.
Approach: We ensured all applicable data was obtained to facilitate targeted works for an economical upgrade of the driveway. This resulted in a sound and safe access addressing land stability and surface stormwater matters.
Outcome: The client was able to utilise much of the existing infrastructure with only limited additional cost, releasing extra development potential for the land.

Infrastructure Planning: Mt Albert, Auckland
Our client sought to release land for development in multiple stages, requiring early concepts and forward planning that provided for the entire future development without compromising the staged approach.
Approach: We incorporated catchment planning to service the whole site while being flexible enough to accommodate the future layout of subsequent stages.
Outcome: We managed the program for the installation of infrastructure to progressively service the development as efficiently as possible. Our experienced management of the associated complexities involved with council planning and engineering compliance standards ensured a smooth process for the staged development.
