After 1815 Saarbrücken became part of the Prussian Rhine Province. The office of the mayor of Saarbrücken administered the urban municipalities Saarbrücken and St Johann, and the rural municipalities "Malstatt", "Burbach", "Brebach", and "Rußhütte". The coal and iron resources of the region were developed: in 1852, a railway connecting the Palatine Ludwig Railway with the French Eastern Railway was constructed, the Burbach ironworks started production in 1856, beginning in 1860 the Saar up to Ensdorf was channeled, and Saarbrücken was connected to the French canal network.