One special feature is the correction carried out in 1898 using the Schindler system between the state border and the Weilstrassen bridge. In this system, the river profile follows a continuous, uninterrupted ground line, which neither receives a separate riverbed nor a separate bank formation. The advantages of this system are intended to be that flood defences would be less damaged during floods and the riverbed could absorb a larger water volume. The Schindler system proved unsatisfactory in the early years so that, between 1905 and 1910, the original wooden defences had to be replaced by stone blockwork. However, thanks to the Schindler's profile, a remarkable river meadow was formed between the state border and the Riehen swimming pool developed over the course of time on the right bank of the Wiese. It was only recently that this conservation-worthy meadow was severely damaged by the building work for the Zollfreienstrasse road.