How did dredging and straightening make the Sulina Channel easier for ships to use?

The Sulina Channel is the only branch of the Danube River delta currently used for navigation. By straightening and dredging the 39-mile (63-km) length of this channel, engineers have improved its navigability for ships.1

Dredging is a process used to deepen or widen a waterway beyond the reach of shore-based equipment, typically employing a floating plant to remove material from the riverbed. Straightening involves modifying the river's course to remove sharp bends, which assists navigation by creating a more direct path. Together, these engineering efforts ensure the channel maintains sufficient depth and a more efficient route, allowing vessels to traverse the delta safely.21