The Speyerbach is a left tributary of the Rhine in the Palatinate part of Rhineland-Palatinate. In Speyer, the river split into Gießhübelbach and Woogbach. The Woogbach changes its name to Nonnenbach, then flows into Gießhübelbach shortly before the latter flows into the Rhine.
Although only classified as a river of the third rank under German river classification system, the Speyerbach is the largest river of the Anterior Palatinate. It is 60 kilometres long; its catchment area is 596 square kilometres ; its discharge varies between 1 and 5 cubic metres per second . In extreme weather conditions with heavy rain in a short time, the discharge may be much higher; the highest peak was 19.5 cubic metres per second on 25 May 1978.
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