 Between 1997 and 1998 a cement-lined extension to the American Canal replaced part of the earthen Franklin Canal, which delivered water through the City of El Paso to farms in El Paso’s Lower Valley.During planning for the extension, the Mexicans expressed interest in having their allotment delivered from the end of the RGACE near Riverside Dam, rather than to the International Dam at the head of the Acequia Madre, as at present.The water would be delivered via a siphon underneath the Rio Grande.