Time-Critical Asset Remediation Inspection

A possession window with no room for delay

Track possessions on operating rail networks are short, expensive and irreversible — every hour costs in lost service, contractor mobilisation and safety overhead. The client had scheduled a critical weekend possession to complete repainting and remediation work on the Indooroopilly Rail Bridge, and needed the structure visually inspected during that same window.

The conventional options were both costly to the possession itself: parallel rope access, which doubles risk exposure and complicates coordination, or a post-possession EWP and scaffolding setup that would have eaten directly into productive repair time.

What the job actually had to work around

An active live rail corridor immediately outside the possession window. Narrow operating windows with no margin for re-scheduling. CASA controlled-airspace coordination for a populous, suburban location. Direct coordination with Queensland Rail's own corridor procedures. Multiple work crews operating on the bridge simultaneously — inspection couldn't be allowed to slow any of them down.

Inspection that ran alongside the repair, not after it

Hover deployed a rapid drone inspection workflow that operated concurrently with the repair crews, flying programmed patterns around the truss, deck, piers and bearing surfaces while EWPs and ground crews stayed focused exclusively on repainting.

High-definition visual data was relayed in real time directly to the remediation supervisors on the bridge — not stored and reviewed after the fact, but used live to direct paint crews to specific structural anomalies as they were identified. CASA airspace coordination, rail corridor permits and Queensland Rail access protocols were all handled ahead of mobilisation, so nothing needed resolving on the day.

A fixed-cost window, used at full productivity

Inspectors didn't need to climb the bridge. EWPs stayed dedicated to repair work instead of competing for access with an inspection crew. Critical maintenance was prioritised and completed safely before the network reopened.

The drone inspection ran in parallel with the repair workflow rather than in competition with it — materially increasing the productive output of a fixed-cost possession window. The inspection data itself was retained as a permanent record for ongoing asset condition tracking.