How Texas and Mexico Share the Rio Grande River

Binational Management of a Border River

The Rio Grande (Río Bravo del Norte) forms ~1,254 miles of the Texas‑Mexico border. Sharing involves:

1. International Boundary: River defines the border between Texas and Chihuahua, Coahuila, Nuevo León, Tamaulipas.
2. Water Treaties: 1906 Convention created the International Boundary and Water Commission (IBWC); 1944 Treaty allocates irrigation diversions.
3. Infrastructure: Dams (Falcón, Amistad), reservoirs, canals for flood control, irrigation, hydropower.
4. Environmental Cooperation: Joint efforts on pollution, habitat restoration, water quality.
5. Economic Value: Agriculture, industry, tourism, hydropower for both nations.
6. Cultural Significance: Shared heritage, cuisine, language influences along the borderlands.

Ongoing Challenges

Drought, overallocation, and climate change strain the agreements, requiring continuous diplomatic and technical collaboration.