Results
Over 100 targeted concrete repairs completed to spec
Zero environmental incidents recorded during the works
Protected bird species remained undisturbed throughout the project
Demonstrated ability to deliver critical repairs in sensitive ecological zones
Project
Solution
A detailed project planning and permitting process was completed in consultation with ECAN
4000psi water blasting was used to clean affected areas without disturbing the surrounding environment
Damaged concrete was removed and replaced using Sika MonoTop® repair systems
Handrails were repaired from the footpath without affecting pedestrian or ecological zones
Dust extractors were attached to drills and debris manually cleared daily to ensure 100% containment
Project
Challenges
Bridge located within a protected nesting zone of endangered black-billed gulls
Strict environmental permits and oversight required from Environment Canterbury (ECAN)
Delicate demolition required to prevent debris from entering waterways
High-traffic infrastructure demanding minimal disruption
Project
Overview
The SH1 Ashburton Bridge, spanning the ecologically sensitive Hakatere / Ashburton River, required urgent concrete repair works along its structure. This river is a critical breeding ground for endangered black-billed gulls, necessitating a repair approach that was both technically sound and environmentally cautious.