...–Borcea branch, which extends the navigation distance to around 110 km, for periods of around 140 – 160 days/ year.This is a situation caused by the involution of the main Danube riverbed and the overdevelopment of the Bala and Borcea branches upstream. Therefore, discharge has increased on the Bala branch to almost 80% of the Danube's discharge. The continuous decrease in the discharge of the Dan ...