How is Line 5 monitored?

Our Answer

Whether over land or under the water, the structural integrity of Line 5 is continually monitored in multiple ways.:

• Line 5 is monitored 24/7 by a dedicated team of specially trained pipeline operators at Enbridge’s state-of-the-art control center
• Inline inspection tools are used to evaluate the condition of the line from inside. These high-tech imaging tools can detect cracks, corrosion and dents
• Line 5 has special valves that automatically close if a drop in pressure occurs
• Remote Operated Vehicles (ROVs) and divers are sent underwater to inspect the condition of the pipeline from the outside
• Helicopters and other visual tools survey the line from the air to watch for hazards

When a safety concern is identified, the pipeline valves can be shut down remotely in as little as three minutes.