The project concerns the construction of the fourth lock at Lanaye, the key lock along the Albert Canal at the Belgian-Dutch border. This lock connects maritime and inland ports and constitutes an essential point of passage for the European inland waterway network. The existing lock is highly congested, causing considerable delays. The new fourth lock will be 225 m of length and 25 m wide. This will allow to quadruple the amount of convoys passing the waterway intersection.