The 1980 flood in the Tijuana River Valley was one of its worst. Rains filled nearby reservoirs so much that water had to be released into the already-raging Tijuana River. If a wall stood in the river then, like the one Customs and Border Protection is building right now, it would be met with water speeds and force equivalent to 175 fully-loaded shipping containers hitting the barrier every second, according to Jochen Schubert, [specialist, civil & environmental engineering], a flood risk expert at University of California, Irvine. Read More