We participated in a program to renew the collectors and subcollectors of the sewer system in the city of Nogales, Sonora. The main objective was to replace infrastructure that had exceeded its useful life. With this, we sought to adapt the system to current flow needs, reduce the intrusion of rainwater into the sewage network and improve environmental conditions in the area.

The project was developed in several phases:

• Second Phase: We replaced 8.5 km of subcollectors with diameters between 12 and 20 inches.
• Third Phase: We reconstructed the Álvaro Obregón collector, 3.7 km long and with diameters ranging from 12 to 28 inches. This is one of the city’s two main collectors, responsible for transporting wastewater from Nogales, Sonora, to the treatment plant in Nogales, Arizona.
• Fourth Phase: We are working on 7.7 km of collectors with diameters between 12 and 20 inches.

Our supervision tasks were key to ensure the correct execution of the program. We focused on:

• Project review and modification: We analyze designs and make the necessary modifications for their correct implementation.
• Supervision and quality control: We supervised the execution of the works and ensured that quality standards were met.
• Construction management: We monitored the physical and financial progress of the works to ensure that they were completed within the established deadlines and budgets.
• Reporting: We prepare detailed reports for our clients.
• Management support: We assist our clients in the communication and coordination with the different actors involved in the execution of the works.

This program reinforced our experience in the management and supervision of urban infrastructure projects, demonstrating our capacity to renovate and modernize essential systems for the community.