Mainz is a city with over two thousand years of history. It is located on the river Rhine across from Wiesbaden, in the western part of the Frankfurt Rhine-Main Region. The Theodor Heuss Bridge is an arch bridge over the Rhine connecting the Mainz-Kastel district of Wiesbaden. The main span of the bridge is 102.94 meters (338 ft) long. It was named for German statesman Theodor Heuss.