why are there locks on the danube river
Danube The waterway is designed for large-scale inland vessels (110 Ã— 11.45 m) but it can carry much larger vessels on most of its course. The Danube has been partly canalized in Germany (5 locks) and Austria (10 locks). Proposals to build a number of new locks to improve navigation have not progressed, due in part to environmental concerns.
Great Hungarian Plain Its boundaries are the Carpathians in the north and east, the Transdanubian Mountains and Croatian mountains in the southwest, and approximately the Sava river in the south.