Swimming in the river Isar - Isarvorstadt

According to the Munich swimming regulations (BootVO 360) swimming is allowed in the following area:

From Braunauer Eisenbahnbrücke (Braunauer railroad bridge) up to 50 meters above Reichenbachbrücke, on the right site (eastern part) of the river. But within this distance swimming is not allowed 20 meters above and 40 meters beneath the Wittelsbacher Brücke (Wittelsbach bridge).