Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Scheme of Piatã storm drains before (a) and after (b) the intervention. In a, standing water is shown accumulated in the bottom of the storm drain. In b, the bottom of the storm drain is filled with concrete, allowing water outflow through the drain tube, and metal mesh is installed to prevent debris from clogging into the drain tube
