How updated electronic navigation practices improve safety and efficiency – and optimize cargo movement – on US inland waterways. It was a cold winter night. Heavy gusts and snow did not allow safe navigation and forced the ships on the upper Mississippi to secure alongside the few remaining jetties. Safety is the key issue for all river transport companies but at the same time efficiency and timely delivery of valuable goods is of utmost importance. It was 1999 and an American navigation pioneer – Greg Dunkle – had realized the potential of electronic chart systems.