Tijuana’s downtown got a needed reset this week after municipal crews hauled away 4.5 tons of trash from Avenida Mutualismo and nearby blocks. City officials said the waste had been obstructing sidewalks and curbs in the heart of the Zona Centro, an area where foot traffic and commerce stack up by the hour. The cleanup targeted a corridor that links small shops, service businesses, and local transport routes. According to the city and regional pr…