Snowy Hydro Level 2 Structure Assessments

Project Overview

MU Group was engaged to complete Level 2 bridge inspections for the twenty identified bridges in accordance with Transport for NSW requirements and procedure (RTA Bridge Inspection Procedure Manual, 2007). This involved MU Group completing condition ratings and identifying the required maintenance actions for each bridge.

Future works

The major maintenance activities are planned to commence in October 2021 and will continue throughout the summer. From our inspections, these maintenance activities will include bearing replacements, repainting of steelwork (including removal of current lead-based paints where required), concrete crack repair, mortar pad repairs, replacement of corroded bolts and nuts, bridge approach pavement re-lay and general deck repairs and cleanouts.

Further Level 3 inspections and structural assessments are expected for some of the bridges, where further testing and analysis are required to confirm current load limits.

On-site application of innovative bridge inspection technologies

For the bridge structures spanning dams, spillways and Intakes, our team utilised Unmanned Aerial Vehicles (Drones) to critically and effectively inspect bridge elements that were otherwise unable to be safely and closely viewed. The use of drones eliminated the need for the use of expensive specialised access equipment.