National Geographic : 1904 Feb
THE REPUBLIC OF PANAMA age on the Panama canal a lock full of water,representing a volume nearly 750 feet long,84 feet wide, and 45 feet deep, would be used in the Bohio locks and about two-thirds as much in the Pedro Miguel locks. This requires a large supply of water, which the Isthmian Commission computed for all purposes to be i,o70 cubic feet per second for an annual traffic of 1o,ooo,ooo tons passing through the canal. This water supply automatic control it has been changed from a sinister agent to a friendly power. Furthermore, while the average dis charge of the Chagres River is nearly three times the quantity required for feeding the canal, there are times in the dry seasons when the discharge of the river is not more than two-thirds of the quantity required for that purpose. This deficiency is abundantly made up by the storage in Lake Bohio until the traffic Cutting the Canal through Morasses, Chagres River Region is afforded by the Chagres River, and without it or its equivalent the canal would not be possible. In view of the complete system of self control of the Chagres floods by the Gigante Spillway, the Chagres River, instead of being an insurmountable ob stacle to the construction and mainte nance of the canal, as has at times been apprehended, is actually a gracious feat ure of the canal environment,and by that exceeds 1o,ooo,ooo tons annually. At that time the storage in the Alhajuela reservoir will give an additional supply for an increase of traffic three or four times as great as the volume which can be accommodated by the storage in Lake Bohio. ABOMINABLE SANITARY CONDITIONS The sanitary conditions of the Isthmus are at the present time wretchedly bad. 7'