Farming Expanded due to Water The BorderTransportationSystem contains a means for bring sea water from the Gulf of Mexico, and from San Diego to the interior of our and Mexico's border.  The salt water can be used to create fresh water for drinking, irrigation, and other needs.  Also, the system will have several desalination stations that double as purification stations, thus being able to use local waste water, river water, flood waters, etc, for irrigation. Tens of thousands of acres of now barren land can be supplied with water for farming, providing submerged drip irrigation is used. Index of ... Drip Irrigation Design Guidelines Drip Irrigation Systems Factors to Consider in Selecting a Farm Irrigation System (B 882)