Monitoring construction to prevent drainage clogging

To minimize or prevent flooding along highways and local streets caused by construction activities.
To regulate discharge of water, silt, and debris from construction sites into drainage systems.

Contractors or persons in charge must install a sump, silt chamber, or debris trap on-site to contain water laden with silt and debris before discharge.
Water from construction sites, including local runoff, must be discharged at or near catch basins or side inlets; discharge on road pavements, street curbs, and gutters is prohibited.
Catch basins or side inlets must be inspected before and after daily construction operations for silt or debris, which must be promptly removed by the contractor.
Contractors bear full responsibility for any damage to private or public properties/utilities caused by flooding resulting from construction work.

Construction activities are subject to ongoing monitoring to ensure compliance with these conditions.
Non-compliance with the conditions is grounds for revocation of the Building Permit.

This directive is issued by the Department of Public Works and Highways (DPWH) under Department Order No. 152 dated July 24, 1990.
It is signed and enforced by the Secretary of DPWH, Fiorello R. Estuar.