North East Link – Hurstbridge Rail Bridge, Watsonia

Cerecon Engineering conducted an in-depth inspection and structural analysis of the Hurstbridge Rail Bridge, a concrete structure beneath the Greensborough Bypass, as part of the North East Link Program (NELP). The bridge spans 12 metres with 8-metre-high retaining walls and plays a vital role in the region’s rail infrastructure.

The inspection verified the bridge’s structural integrity to support planned works, including demolition of its asphalt layer and backfilling adjacent to its north retaining wall. We closely examined the composite concrete deck with precast hollow-core planks and the supporting retaining walls, identifying any defects that could affect load-carrying capacity.

A 3D grillage model was developed to assess loads from construction activities, including dynamic loads from milling machines, compactors and excavators. The analysis confirmed the bridge could safely support these operational loads. Potential issues were addressed with the client, and we worked closely together on monitoring protocols to keep operations safe.

By combining traditional inspection with advanced structural modelling, Cerecon provided a reliable basis for keeping the bridge safe and durable through critical infrastructure works.