Matías Hernández River Barrier Keeps Waste From Reaching Panama Bay, Project Says

PANAMA CITY, November 1, 2026 — A floating barrier installed on the Matías Hernández River has prevented 50,000 kilograms of waste from reaching the sea since it was installed in May 2026, according to Marea Verde’s account of the project.

What the barrier does

The system is designed to retain floating waste carried downstream before it enters Panama Bay and the ocean. Its work became particularly visible during a recent heavy storm, when higher river flow and faster water put pressure on the barrier while moving a larger volume of debris.

Capturing waste in a river is an immediate intervention. It does not remove the need to reduce waste at the source, improve collection systems or prevent litter from entering drains and waterways in the first place.

Who is involved

Marea Verde operates the project in collaboration with The Ocean Cleanup. The organization said the work is funded through private support from Panamanian companies. The Matías Hernández barrier is part of the Siete Cuencas initiative, which also operates in the Juan Díaz and Río Abajo rivers.

The wider result reported

Marea Verde said its work across the three rivers has prevented more than 100,000 kilograms of waste from reaching the sea. Those are project-reported figures, and they illustrate why heavy-rain events can be a major stress test for urban waterways and waste-management systems.

Source: TVN Noticias