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Zapopan Accelerates Flood Defenses Ahead of Rainy Season

Differing SIARI retention totals leave unclear how much recent canal and pluvial upgrades will reduce flood risk

Overview

  • Municipal officials reported on Monday that desazolve work is about 90% complete and 27 of 35 canal and arroyo sections have been fully intervened.
  • Crews removed roughly 14,018 cubic meters of sediment, logged 3,202 machine hours and built 280 meters of pluvial infrastructure plus a 150‑meter, 1.8‑meter collector in priority basins.
  • The government has issued 1,031 apercibimientos across 28 high‑risk colonias and focused investments in neighborhoods such as La Martinica and Arroyo Hondo to protect residents most affected in 2025.
  • Official statements give two different totals for the SIARI stormwater retention capacity — about 509,000 cubic meters in one release and more than 828,000 cubic meters in another — a discrepancy the municipality has not reconciled.
  • The push follows a severe 2025 rainy season that produced 1,629 rain‑related emergencies and displaced many families, and officials warn that extraordinary storms could still overwhelm the improved infrastructure.