From the late 18th century onwards, parts of the route were rebuilt as a chaussee, mainly in the area between Aachen and Jülich as well as on the nearby territory of the County of Mark, promoted by the Brandenburg-Prussian administration under Heinrich Friedrich Karl vom und zum Stein. Stein also concluded an agreement to extend the road via the territory of Imperial Essen Abbey for the accessibility of the coal deposits in Cleves. The road from the Prussian capital Berlin to the royal castles in Potsdam was rebuilt in 1792 and extended to Brandenburg an der Havel until 1799.