Tijuana, Baja California, Mexico

Rehabilitation of the Collector Poniente Tijuana, Baja California

Status: Completed


The purpose of the Project is to eliminate exposure to untreated or inadequately treated wastewater discharges by replacing deteriorated wastewater infrastructure prone to leaks and failures, and thus contribute to the reduction of water pollution and the risk of waterborne diseases.


The proposed project consists of the rehabilitation of part of a collector main known as the Collector Poniente, as well as the replacement of a few related sub-collectors, in the northwestern area of Tijuana, Baja California (the “Project”).


The environmental and human health outcomes anticipated as a result of the Project include:

• Improve wastewater collection and conveyance infrastructure for up to 23,500 existing residential wastewater connections.

• Eliminate approximately 177 liters per second (lps) or 4 million gallons per day (mgd) of untreated or inadequately treated discharges.

• Reduce the risk of line failures resulting in untreated or inadequately treated wastewater discharges to the Tijuana River, a transboundary water body.

Project Financing

Total Project Cost US 2.90M
NADBank Funding US 1.41M - NADBank Grant: BEIF