Seine-Nord Europe Canal
ESTIMATED61% CONFIDENCEA target, per the source[1]: work continues "until 2030, when the entire Seine-Scheldt[2] network will be brought into service", though some sources put full completion closer to 2032.
A €5.1BN, 107km canal connecting the Seine basin to Belgium and the Netherlands, finally under construction after being proposed for more than two decades and delayed twice by World Wars.
€7B
1.00