Results
Increased seismic capacity of the overbridge from 36% to 67%, meeting council’s long-term safety objectives.
Delivered the project with minimal disruption to two lanes of traffic and pedestrian access throughout construction.
Received positive feedback from Hutt City Council and the public, with regular audits confirming that site organisation and cleanliness exceeded expectations.
Project
Solution
Developed and fabricated a sacrificial casing system to prevent grout loss behind the existing concrete wall, maintaining design integrity without adding additional weight to the structure.
Installed 19 Ischebeck TITAN 30/11 anchor bars, each individually tested to confirm design capacity and performance.
Deployed crawler rigs, grout plants, compressors, and core drilling systems to manage drilling through variable abutment conditions efficiently.
Applied quality control and testing protocols throughout anchor installation, ensuring compliance with seismic strengthening requirements.
Project
Challenges
Installation of anchors in a prominent and high-traffic intersection, requiring strict management of public visibility, council scrutiny, and traffic flow.
Complex existing bridge abutment design with variable concrete thicknesses, demanding specialist drilling and anchoring techniques.
Delivering works under public observation while maintaining site cleanliness, organisation, and strict safety compliance.
Project
Overview
After a detailed seismic assessment revealed that the Cuba Street Overbridge in Lower Hutt had an earthquake capacity of only 36%, Hutt City Council developed a strengthening methodology to lift this to 67%. Geovert was engaged to implement these critical improvements, focusing on production anchor installation across the 29.6m span.
The project required technical solutions in a highly visible urban environment, balancing community expectations and traffic management while ensuring the long-term seismic resilience of this transport link.