70-100 degrees F
Health measures during the construction of the Panama Canal happened in 1904.
Yelllow fever and Malaria-during US construction
Theodore Roosevelt
rainyhot sunmuddy
Construction
not at the time
France started the construction of the Panama Canal but failed.
Theodore Roosevelt's "big ditch" refers to the Panama Canal, which was located in Panama. Roosevelt played a significant role in the canal's construction during his presidency from 1901 to 1909.
Quinine
After ten years of construction, the Panama Canal was completed in 1914.
If the question is what President oversaw the construction of the Panama Canal, it would be Theodore Roosevelt.
Reference the book The Panama Canal written by Fredric J Haskin 1913. This book mentions all key players of the project and all other tangibles related to the construction the canal.