At 18:00 on July 30, the first truck of concrete was unloaded at the main guide wall upstream of the Madao Junction of the Pinglu Canal, marking the initial concrete pouring for the world"s largest inland water-saving ship being built on the canal.

The Madao Junction, which serves as the first cascade hub of the Pinglu Canal, will boast a double-line ship lock. As the largest inland water-saving ship lock currently under construction in the world, it requires approximately 3.47 million cubic meter of concrete. The effective scale of the ship lock is 300 m × 34 m × 8 m (effective length × effective width × minimum sill depth). With a maximum design water head of 29.6 m, it will also include a three-level water-saving pool and a gravity dam water-retaining structure. After completion and being open to navigation, it will become the world"s largest inland water-saving ship lock.