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Navigation on the Upper Paraguay river, between Cáceres, in Mato Grosso, and Porto Murtinho, in Mato Grosso do Sul, Brazil,
has been a concern of many (see map below).1
In the late 1960s, the United Nations Development Programme (UNDP) funded a five-year study to collect hydrologic data on the Upper Paraguay,
with the intent
to use this data in future navigation development projects.2
The project was initiated in 1968, ending in 1973, with an expenditure of about U.S. $ 5 million.
Yet, the Upper Paraguay was not to be tamed. The river remained in drought
from 1962 to 1973, the longest on record (see figure below).
The untimely drought on the Upper Paraguay meant that the five-year
study was only able to collect data during low flows. Thus, the moral of the story: "When dealing with the weather, be prepared to lose."
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