Hydrographic Technology
Bathymetric Survey at Wondabyne
Bathymetric survey of Mullet Creek on the Hawkesbury River near Wondabyne, using advanced remote-controlled hydrographic technology to safely and efficiently capture the riverbed.
CLIENT
AECOM Australia
LOCATION
Wondabyne NSW
YEAR
2026
SERVICES
Bathymetric Survey, Railway Survey, TAO Survey.
Project Overview
About This Project
The survey utilised a Seafloor Systems HyDrone twin-hull remote-controlled watercraft equipped with high-resolution sonar and GNSS positioning technology. The system enabled DS&P to systematically map the underwater terrain, capturing accurate depth and positional data across the survey area.
This project demonstrates DS&P’s capability to combine traditional surveying expertise with advanced hydrographic, GNSS and remote-sensing technologies to deliver precise spatial data in challenging environments.
Image Gallery
Project Photos
Early start at Parsley Bay Wharf
Main north train line near Wondabyne
Surveying the culvert
Finding survey marks
Surveyor Ben at the culvert
Launching the HyDrone
Outcome
The Result
The resulting bathymetric dataset provides a detailed representation of the riverbed, supporting engineering design, assessment and planning where accurate underwater information is critical. The use of a remotely operated platform also allowed the survey to be undertaken with minimal impact and reduced exposure to the risks associated with working on or around the water.