As the rainy season prepares to drench western Mexico, authorities have identified 310 flood-prone sites across the Guadalajara Metropolitan Area (AMG), with Guadalajara alone accounting for 49 critical hotspots—the highest concentration among the nine municipalities.
The updated 2026 Flood Map (Mapa Único de Inundaciones), unveiled jointly by the Metropolitan Planning Institute (Imeplan) and the Jalisco State Civil Protection and Fire Department (UEPCBJ), now uses polygon-based mapping to show affected surface areas with greater precision. The tool also flags vulnerable infrastructure, including schools, hospitals, markets, sports facilities, government buildings and agricultural zones.
Of the 310 sites, at least 239 are on roadways or properties, with 171 classified as “critical zones” — where water exceeds 30 centimeters (about 12 inches) or currents pose risks of sweeping away vehicles or people. The map also identifies 35 flood-prone underpasses, 11 public transit stations, 24 urban facilities, and one agricultural area.
High-risk underpasses include:
• Inglaterra and López Mateos (Guadalajara)
• Inglaterra and Independencia (Guadalajara)
• Arcos del Milenio roundabout (Guadalajara)
• Plan de San Luis and Colón roundabout (Guadalajara)
• López Mateos Sur and Cubilete (Zapopan)
• Calzada del Servidor Público and Periférico Norte (Zapopan)
•Ávila Camacho and Naranjo (Zapotlanejo)
Following Guadalajara, municipalities with the most critical zones include Tlajomulco de Zúñiga (30), Tlaquepaque (28), and Zapopan (22).
Officials announced that sensors will be integrated into underpasses and high-risk zones to issue preventive alerts. A priority site already equipped with a warning barrier is the Servidor Público underpass in Zapopan. Other zones of concern include Ejército Nacional and Arroyo Seco crossing, El Rosario in Tonalá, and corridors such as González Gallo, Niños Héroes and Washington, where water currents pose dangers even at low depths.
The 2025 rainy season claimed eight lives across the metropolitan area and interior municipalities due to flooding and water currents, authorities noted.