Republic of the Philippines 
House of Representatives 
Quezon City, Metro Manila 
TWENTIETH CONGRESS 
First Regular Session 
HOUSE BILL No. _______ 
---------------------------------------------------------------------------------------------------------------- 
Introduced by HONORABLE ERNESTO “ERNIX” M. DIONISIO, JR. 
---------------------------------------------------------------------------------------------------------------- 
AN ACT ESTABLISHING A METRO MANILA-WIDE SYNCHRONIZED DRAINAGE 
AND FLOOD CONTROL MASTER PLAN, MANDATING THE INTEGRATION OF 
LOCAL AND NATIONAL INTERVENTIONS INTO A COORDINATED FRAMEWORK, 
AND APPROPRIATING FUNDS THEREFOR 
EXPLANATORY NOTE 
Metro Manila’s chronic flooding is a product of fragmented infrastructure systems, 
inconsistent engineering standards, and the absence of a unified regional approach. Each 
of the seventeen (17) local government units maintains separate drainage and flood 
control programs, often with conflicting or disconnected scopes. 
This bill mandates the creation of a Metro Manila-wide synchronized drainage and 
flood control master plan, jointly implemented by the Department of Public Works and 
Highways (DPWH), the Metro Manila Development Authority (MMDA), and all LGUs. It 
seeks to align technical designs, timelines, budgetary strategies, and climate resilience 
goals into one comprehensive system. 
With rapid urbanization and worsening climate risks, the need for institutional 
cohesion and integrated civil works has become urgent. This bill responds to that need 
by establishing a clear mandate for joint planning and execution.  Thus, it is for the 
foregoing premises that the passage of this bill is highly sought. 
HON. ERNESTO “ERNIX” M. DIONISIO, JR. 
Representative 
First Congressional District of Manila 
July 24, 2025
12:04 pm
2253


Republic of the Philippines 
House of Representatives 
Quezon City, Metro Manila 
TWENTIETH CONGRESS 
First Regular Session 
HOUSE BILL No. _______ 
---------------------------------------------------------------------------------------------------------------- 
Introduced by HONORABLE ERNESTO “ERNIX” M. DIONISIO, JR. 
---------------------------------------------------------------------------------------------------------------- 
AN ACT ESTABLISHING A METRO MANILA-WIDE SYNCHRONIZED DRAINAGE 
AND FLOOD CONTROL MASTER PLAN, MANDATING THE INTEGRATION OF 
LOCAL AND NATIONAL INTERVENTIONS INTO A COORDINATED FRAMEWORK, 
AND APPROPRIATING FUNDS THEREFOR 
Be it enacted by the Senate and the House of Representatives of the Philippines in 
Congress assembled: 
SECTION 1. Short Title. – This Act shall be known as the “Metro Manila Flood Control 
Act.” 
SECTION 2. Declaration of Policy. – It is hereby declared the policy of the State to 
implement a unified and region-wide drainage and flood control master plan for Metro 
Manila that is climate-resilient, technically interconnected, and capable of reducing flood 
risks through collaborative governance.   
SECTION 3. Creation of a Master Plan. –  A synchronized Metro Manila Drainage and 
Flood Control Master Plan shall be jointly formulated and implemented by the Department 
of Public Works and Highways (DPWH), in coordination with the Metro Manila 
Development Authority (MMDA), Department of Environment and Natural Resources 
(DENR), Department of Interior and Local Government (DILG), and all Local Government 
Units (LGUs) within Metro Manila. 
SECTION 4. Scope and Components of the Master Plan. – For purposes of this Act, 
the Master Plan shall include: 
a) Mapping of existing and planned drainage systems, waterways, and flood-prone
zones;
2253


 
b) Harmonized engineering standards across all LGUs; 
 
c) Prioritization of projects based on vulnerability, connectivity, and urban density; 
 
d) Integration of climate data and sustainable drainage techniques; and 
 
e) Public disclosure and regular technical audits of implementation progress. 
 
SECTION 5. Institutional Roles. – Pursuant to the objectives of this Act, the various 
government institutions of the Philippines shall have the following obligations:  
 
a) The DPWH shall serve as the lead agency for planning, implementation, and 
evaluation 
 
a) The MMDA shall manage inter-agency and inter-LGU coordination. 
 
b) The DILG shall ensure local compliance and policy alignment. 
 
c) The DENR shall provide ecological and hydrological data support. 
 
d) The LGUs shall align their drainage plans, ordinances, and local budgets with the 
master plan. 
 
SECTION 6. Implementing Rules and Regulations. – Within ninety (90) days from the 
effectivity of this Act, the DPWH, in consultation and coordination with the MMDA, DILG, 
DENR, LGUs, and other concerned agencies, shall promulgate the IRR necessary for the 
effective implementation of this Act. 
 
SECTION 7. Appropriations. – The initial funding for the implementation of this Act shall 
be sourced from existing appropriations of the DPWH and MMDA, and shall be included 
in the annual General Appropriations Act thereafter. 
 
SECTION 8.  Separability Clause. – If any provision of this Act is declared invalid or 
unconstitutional, the remaining provisions not affected shall remain in full force and effect. 
 
SECTION 9. Repealing Clause. – All laws, presidential decrees, executive orders, rules, 
regulations, or parts thereof which are inconsistent with any provision of this Act are 
hereby repealed or modified accordingly. 
 
SECTION 10. Effectivity. – This Act shall take effect fifteen (15) days after its publication 
in the Official Gazette or in a newspaper of general circulation. 
 
Approved,