Bridges over the Rhine - Federal Republic of Germany

Abstract

This article describes two different ways of carrying out expansion of the number of lanes, from 4 to 6, on a bridge, without having to interrupt traffic: — The bridge with lanes for metropolitan train-trolley and automobiles between the city of Cologne-Deutz (Deutz and Mülheim are very large outskirts of Cologne, to the east of the Rhine), will be expanded between 1977 and 1979 from 4 to 6 lanes by means of an adjacent bridge of similar characteristics. — Another bridge —the suspension bridge for both metropolitan train-trolley and vehicles— existing between Cologne-Riehl and Cologne-Mülheim was expanded between 1974 and 1977 from 4 to 6 lanes of traffic, distributing in a more favorable manner the transversal section with the existing support structure. At the same time the upper part of the bridge was newly paved and reinforced to adapt to the strictest construction standards, in order to avoid future bulging problems.