The construction program of the Commission is in pursuance of treaty and other agreements in force between the United States and Mexico and acts of the Congress insofar as the United States section is concerned. From 1848 to 1933 the joint construction activities of the two Governments were limited entirely to monumentation of the common boundary of 1,935 miles in length. The treaty

of February 1, 1933, which provided for flood control to include rectification and stabilization of the Rio Grande from El Paso to Fort Quitman, formed the basis for the first major joint construction program of the two Governments. In the treaty of 1944, relative to the utilization by the United States and Mexico of the waters of the Colorado and Tijuana Rivers and of the Rio Grande, the two Governments agreed to the accomplishment of a long term and specific program of flood control, equitable distribution of waters, water conservation and storage, development of hydroelectric power, stabilization of the river boundaries and the elimination of sanitation hazards.

The following table indicates total requirements under construction for fiscal years 1954, 1955, and 1956:

Schedule for preparation of plans and initiation of construction of new Federal public works projects and programs

1 Preliminary investigations only.

Diablo Dam is authorized by the 1944 treaty; construction of a powerplant in connection with the dam is subject to authorization by the Congress. 3 Total estimated cost of project $850,000 including portions allocable to Mexico and to city of Calexico, determinations of which are subject to negotiations.