For decades the Northern bypass of Wavre has been the missing piece of the puzzle of the local network.
The objective of the project is to complete the metropolitan area by developing a structured network, linking the N4 to the E411 motorway from the Northeast via the RN25 and the RN257.
Several works of art and planning will be needed to complete this road, including: 3.5 km of double band traffic, 2 roundabouts, 2 beam bridges, 1 frame bridge, 1 bridge over the Dyle, 1 bridge on the SNCB railway line, 1 bridge on the Chaussée de Louvain, 3 storm basins and several linking ramps.