Skip to content Skip to navigation Skip to news

Tijuana River Watershed

Tijuana River Watershed Binational Vision Project

In 2002, a binational team of researchers and practitioners, the Binational Watershed Advisory Council (BWAC), was formed with funding from the State of California, the County of San Diego, and San Diego State University, including support from the Southwest Consortium for Environmental Research and Policy. BWAC developed baseline information for the watershed and identified key stakeholders in the watershed. The stakeholders participated in the development of a binational vision, or ideal state, for the Tijuana River Watershed published in 2005 and helped to devise strategies and options for achieving that vision.


The Tijuana River Watershed lies across the U.S.-Mexican international boundary and includes approximately 1,750 square miles (4,465 km2) with one-third in California and two-thirds in Baja California.


Growing human populations and land use changes have brought numerous environmental problems to the Tijuana River Watershed region. These include:

  • Decline in local groundwater and dependence on imported water
  • Decline in quality of surface and groundwater for human use
  • Increased erosion and flood dangers
  • Increased air pollution
  • Reduction in the amount of open, green areas for urban residents
  • Decrease in ecosystem health
  • Increasing number of threatened and endangered plants and animals

Last Modified: May 6, 2013

Note: documents in Portable Document Format (PDF) require Adobe Acrobat Reader 5.0 or higher to view, download Adobe Acrobat Reader.
Note: documents in Word format (DOC) require Microsoft Viewer, download word.
Note: documents in Excel format (XLS) require Microsoft Viewer, download excel.
Note: documents in Powerpoint format (PPT) require Microsoft Viewer, download powerpoint.