Safety With the Elios 3, surveyors, engineers, and asset inspectors can collect critical data without exposing themselves to dangerous conditions such as falls from height, toxic gases, tunnel collapses, or being engulfed by wastewater. This ensures a safer working environment for all involved. Data Quality The Elios 3 captures high-resolution LiDAR data and visual imagery, allowing Metrocorp to generate detailed 3D point clouds and photogrammetry models. This level of precision enhances the accuracy of inspections and supports better decision-making for infrastructure maintenance and rehabilitation. Efficiency In one recent case, the Elios 3 completed a 175-meter rock tunnel inspection in just two flights, taking only 30 minutes—compared to up to two hours with traditional methods. Drone-based inspections also require 90% fewer permits, significantly speeding up the process and reducing administrative burden. Cost Savings By reducing the number of personnel required and minimizing on-site time, remote inspections can cut project costs by 50% to 70%. This makes the Elios 3 a cost-effective solution for sewer and underground infrastructure assessments. Metrocorp Technologies has been delivering complex infrastructure projects across Australia for over 30 years, focusing on wastewater, stormwater, and remediation. Recently, they adopted the Elios 3 drone to enhance the safety and efficiency of their confined space and underground inspections. This shift not only improves operational performance but also aligns with modern safety and environmental standards. Inspecting sewers and wastewater systems presents unique challenges. Aging infrastructure, blockages, and unpredictable water flow make these environments hazardous. Metrocorp must collect accurate data while ensuring the safety of their team, often under strict protocols and time constraints. In Sydney, many of the city’s wastewater structures are over a century old and require careful rehabilitation to ensure they last another 50–100 years. This involves mapping unused areas, analyzing existing records, and planning upgrades—all while the system remains operational. The challenge is compounded by the need to maintain safety and minimize disruption to the community. Metrocorp identifies four main hazards when inspecting sewers: To address these risks, Metrocorp uses the Elios 3 drone, which allows them to gather essential data remotely, eliminating direct exposure to these dangers. During a recent inspection, the Elios 3 was used to assess four deteriorating rock tunnels, each about 17 meters deep. A team of just three people completed the task in a single day, compared to the usual 7–10 workers spread over multiple shifts. This demonstrates the drone's ability to streamline operations and reduce labor requirements. Metrocorp recently conducted a condition assessment of a 70-meter-deep wastewater shaft as part of an ongoing inspection program. Traditionally, this would involve setting up specialized equipment, lowering a person into the shaft, and conducting a manual visual inspection. This method is time-consuming, costly, and poses significant risks to the inspector. With the Elios 3, the same inspection was completed in under 30 minutes using just two flights. The drone eliminated the need for physical entry into the shaft, avoiding the risks of falls, toxic gases, and falling objects. It also provided high-quality LiDAR data and visual footage that could be analyzed remotely, saving time and improving overall accuracy. The 3D point cloud model generated by the Elios 3 helped the asset owner understand the structural condition of the shaft and plan necessary repairs. Additionally, photogrammetry software was used to create a detailed 3D model, giving engineers a clear view of the asset’s dimensions and layout. This approach not only improved safety but also reduced the time and effort required for planning and execution. “Entering a high-risk asset like this can take weeks of preparation. The Elios 3 goes in quickly and provides reliable data without the same level of risk,†said a Metrocorp representative. The use of drones for sewer and underground inspections is becoming increasingly common due to their ability to operate in harsh environments and reduce human exposure to danger. Metrocorp has seen significant improvements in efficiency, cost savings, and safety since adopting the Elios 3. The Elios 3 offers enhanced safety, faster inspections, and higher quality data, making it an ideal tool for modern infrastructure assessments. With the release of the Surveying Payload in 2023, the drone now delivers even more precise and detailed information, further increasing its value for engineers and asset managers. If you're looking to modernize your sewer inspection processes, the Elios 3 is a powerful solution that combines innovation, safety, and efficiency. Discover more about how this technology can transform your next project.
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Key Benefits At A Glance
Challenges Of Water And Wastewater Inspections
The Metrocorp team follows strict safety protocols during sewer and confined space inspections
Using The Elios 3 For Deep Manhole Condition Assessments
Underground tunnel inspections with the Elios 3 improve safety and data qualityThe Future Of Sewer Inspections With Drones
