I feel like “The voyages were risky, and there was no insurance to cover the risk” is the answer. Investors didn’t want to lose money and the only way that they would somehow break even on the cost would be if the voyage found riches.
The United States was responsible for construction and were in charge of the waterway until 1999ΔΔΔΔΔΔΔΔΔΔ∴∵∴∵∴∵∴↔→→←←←←←←←←←⊕⊕⊕⊕⊕⊕⊕⊕⊕⊕⊕⊕⊕⊕⊕
<span>It is true that the efforts of government in
businesses towards conservation in preservation have had a positive impact on
the environment. Because it is through conservation that the homeostasis of the
environment is brought back allowing the species to live naturally on their
habitats.</span>