Bridge bearings play a vital role in transferring loads and accommodating movements between a bridge superstructure and its substructure. Over time, these bearings may deteriorate due to aging, corrosion, or excessive movement, necessitating their replacement to maintain structural integrity and safety.

HiSCS undertook the project to replace an elastomeric bearing which showed signs of deterioration. The bridge pier had four bearings, from which only one needed replacement. A detailed jacking structural analysis was developed to determine jack capacities, optimal placement of equipment, synchronization methods, and safety factors.

In total, eight (8) hydraulic jacks were utilized with a total capacity of 800 tons (including safety factors and load distribution requirements).

During lifting, loads and displacements were continuously monitored using pressure gauges and laser distance indicators, to ensure adequate load distribution and uniform elevation.

Once the bridge was lifted and stabilized, the old bearing was removed, and the new one was installed with precise alignment.

Bridge jacking is a highly specialized operation that requires precision engineering, safety planning, and expert execution. HiSCS executed the jacking and bearing replacement operations, extending the life of the structure, and ensuring continued serviceability for decades to come.