Barragem Pedro Beicht, Water management dam in Cotia, Brazil.

The Barragem Pedro Beicht is a water management dam on the Cotia River standing 23 meters high with a substantial storage capacity. The structure functions as a key infrastructure component for water regulation in the São Paulo metropolitan area.

The dam was completed in 1932 as part of the Alto Cotia System to address water supply needs for the expanding São Paulo region. This project marked an important step in developing infrastructure for the growing metropolitan area.

The dam belongs to the Alto Cotia System, operated by SABESP, and supplies water to the São Paulo metropolitan region. Its reservoir sits within the Morro Grande Reserve, a forested area protected for water production.

The dam lies on the Cotia River within the municipality of Cotia, in the state of São Paulo, and is owned by SABESP, the state sanitation company. It is part of the Alto Cotia System, which supplies water to the São Paulo metropolitan region, so the reservoir area is a working water-supply site rather than an open recreation ground.

The dam feeds water directly into downstream reservoir systems using both gravity and pumps for distribution across multiple connected structures. This interconnected network forms an integrated water management chain for the region.