The effect was to reduce the river's length between Basel and Worms from 355 to 275 km (221 to 171 mi).
[1] However, the straightening of the Upper Rhine had increased the streaming speed and thus permanently raised the flood risk in the regions of the Middle and the Lower Rhine,[2] partial floodplain restoration is still performed in a joint program of Germany and France.
During his travels, in 1795 he studied chemistry and mineralogy at the Mining Academy in Freiberg, Saxony.
In this office he was instrumental in planning the stabilizing and straightening of the course of the Upper Rhine, a huge river engineering project that continued until 1879, long after his death.
Tulla died of the consequences of malaria in 1828 and was buried in the Montmartre Cemetery in Paris.