In the summer of 1852 the Panama railroad was completed only to the point where it now crosses the Chagres River. 尤利西斯·格兰特.U．S．格兰特的个人回忆录.
The water thus discharged passes through a diversion channel in the old bed of the Chagres River, generating, by an enormous electric plant, the power necessary for operating the locks. 佚名.神奇的知识之书.