This project involved the assessment and strengthening design of a large existing concrete retaining wall supporting a residential backyard. With a height of approximately 6 metres and a length of around 13 metres, the wall plays a critical role in maintaining ground stability and protecting the dwelling above.

Over time, the retaining wall began to show clear signs of structural distress, including:
- outward leaning
- separation and detachment
- progressive deterioration over time

Given the size of the wall and the level of ground it supports, these issues raised legitimate concerns about its long-term performance and safety.

DTCE was engaged to prepare building consent documentation for the strengthening of the retaining wall. By combining site observations with Ferro and Lidar scanning, the project team was able to gain a clear understanding of the wall’s internal reinforcement and overall condition, forming the basis for a practical strengthening solution.

Learn more about using Ferro scanning in this project here: https://www.dtce.co.nz/post/seeing-inside-concrete-how-ferro-scanning-supported-a-practical-6-metre-retaining-wall-upgrade