Project Overview
Moore Construction delivered critical slip repair works at Port Underwood, restoring slope stability and protecting infrastructure within a remote coastal environment.
The project involved stabilising failed ground conditions resulting from slope movement, requiring a robust and adaptable retaining solution to reinstate long-term stability.
Engineering Solution
An H-pile retaining wall system was selected to provide structural support to the failed slope while accommodating site constraints and variable ground conditions.
The system incorporated steel H-piles with timber lagging, creating a durable retaining structure capable of resisting lateral soil movement and stabilising the affected area.
Construction Delivery
Construction works were delivered using Moore Construction’s in-house plant and experienced team, ensuring precise installation of piles under challenging site conditions.
Timber lagging was installed progressively between piles, providing immediate ground retention and allowing controlled excavation and backfilling.
Site Challenges
The project presented significant challenges due to steep terrain, restricted access, and the remote coastal location.
Mobilisation of plant, materials, and labour required detailed planning, with construction methodologies adapted to suit confined and difficult working conditions.
Ground instability associated with the slip required careful sequencing to ensure safety and maintain control throughout construction.
Resilience & Repair Approach
The works were undertaken as part of a broader effort to restore infrastructure resilience, ensuring the site was stabilised to withstand future environmental loading.
Moore Construction’s approach focused on delivering a reliable and practical solution that could be implemented efficiently despite site constraints.
Outcome
The completed retaining structure provides long-term slope stability, restoring site functionality and protecting surrounding infrastructure.
The project demonstrates Moore Construction’s capability in delivering complex stabilisation works in remote and high-risk environments.


