Case Study No. 8-Managing Floods in Metro Manila

1. ADAMSON UNIVERSITY
MANAGING FLOODS IN
METRO MANILA
CE 428 : WATER RESOURCES ENGINEERING
PRESENTORS:
CASTRO, ANGELO RAY
CATACUTAN, SHANELLE
DOLORES, DIANA
EVERO, HANNA FLORIZA
PRESENTED TO:
DR’. TOMAS U. GANIRON, JR

2. FLOODING IN METRO MANILA

3. The Philippines ranks third among countries most at risk for
disasters, including floods, storms, and earthquakes.
Typhoons and floods are the most devastating in terms of our
economic and social impact, accounting for 80 percent of all
deaths, 90 percent of the total number of affected people, and
92 percent of the total economic impact.
FLOODING IN METRO MANILA

4. The Philippine
government
formulated the
Metro Manila
Flood
Management
Master Plan,
which was
approved by the
National
Economic and
Development
Authority (NEDA)
Board in 2012.
Passenger jeep drives through f lood waters in Manila during monsoon season.
Retrieved f rom Herbert Navasca or World Bank

6. Meteorological Events
- an intense and prolonged rainfall spells
Seismic Activities
- tsunamis (seismic sea waves)
- sinking of land due to earthquakes
Astronomically -- Influenced Phenomena
- high tides coinciding with the occurrence of heavy rainfall
CAUSES OF FLOOD

7. Inadequate drainage capacity
Rapid industrialization
Unusually heavy rainfall
Unabated dumping of garbage and waste in canals, creeks,
esteros, ponds, rivers and other major waterways
CAUSES OF FLOOD

8. THE MASTER PLAN PROPOSED A
SET OF MEASURES TO EFFECTIVELY
MANAGE MAJOR FLOOD EVENTS IN
THE FUTURE WHICH INCLUDE THE
FOLLOWING:

9. Reduce flooding from river
systems that run through the
metropolis, by building a
dam in the upper Marikina
area toRiver catchment
reduce peak river
entering Metro
during typhoons and
flows
Manila
other
extreme rainfall events;
Overflowing of Marikina River in September 2013.

10. Eliminate long-term flooding
in the flood plain of Laguna
de Bay to protect the
population living along the
shore against high water
levels;
A residential house near Laguna de Bay being hit by typhoon Haiyan in
November 2013

11.  Improve urban drainage,
including modernization of Metro
Manila’s pumping stations;
early warning systems
flood
 Improve flood forecasting and
and
riskcommunity-based
management; and
institutional
for better flood
 Improve
arrangements
management.
DPWH opens pumping stations in Valenzuela City in April2019

12. Under the Metro Manila
Flood Management Project,
36 existing pumping
stations will be modernized,
20 new ones will be
constructed, and supporting
infrastructure along critical
waterways will be improved

13. THINGS CAN DO TO MITIGATE
FLOODS

14. Regulate cutting of trees.
Report illegal loggers and kaingeros.
Report illegal construction of fishponds and other
establishments in waterways.
Do not throw garbage in esteros and rivers.

15. Help clean the neighborhood.
Support community activities intended to lessen the
occurrence of floods.
Avoid throwing anything like plastic wrappers anywhere which
may clog or block the drainage system.

16. According to The Department of Public Works and Highways
(DPWH), they have already built 3 major flood control projects
namely the Maysilo Drainage System in Mandaluyong City; the
Blumentritt Flood Interceptor project; and the latest drainage
project at the stretch of Padre Burgos Avenue in Manila City.
MAJOR FLOOD CONTROL PROJECT

17. The project is meant to divert floodwaters from the low -lying
Maysilo Circle to the Pasig River.
As per Villar, the project is expected to decrease inundation depth
from chest deep to just about six inches of flooding, if any. It is
also expected to decrease duration of flooding to only about 30
minutes
MAYSILO DRAINAGE SYSTEM

18. The final segment of the project involved the construction of a
652-linear meter double barrel box culvert along San
Francisco street and the installation of four pumps, each with a
discharge capacity of 1.5 cubic meters per second.
CHARACTERISTIC OF MAYSILO DRAINAGE SYSTEM

19. A water catchment stretching 3.3 kilometers from España
Boulevard to Tondo, it is designed to solve flooding in Quezon
City and Manila.
 It is designed to direct floodwaters from the northern part of
Metro Manila to the Tondo area and then out to Manila Bay
BLUMENTRITT FLOOD INTERCEPTOR PROJECT

20. The goal is to directly catch the floodwaters in the area around
Manila City Hall and Intramuros which will be pumped out by
the newly constructed pumping station, providing convenience
to pedestrians and protection to properties.
FLOOD CONTROL ALONG PADRE BURGOS

21. The flood control project includes two (2) submersible pumps
with a capacity of 0.75 cubic meter per second for floodwaters
to be easily discharged through a 600 mm. x 600 mm. pipe
into Manila Bay. The total length of the drainage line is 2,268.5
lineal meters.
A two-kilometer flood control project around Manila City Hall
and Intramuros
CHARACTERISTIC OF PADRE BURGOS FLOOD
CONTROL PROJECT

22.  https://www.worldbank.org/en/country/philippines/brief/project -highlights-metro-
manila-flood-management
 https://www.untvweb.com/news/3 -major-flood-control-projects-in-metro-manila-
completed-dpwh/
 https://www.philstar.com/nation/2019/11/13/1968245/manila-has-ncrs-most-
flood-prone-streets-mmda
 https://www.philstar.com/metro/2016/10/02/1629422/dpwh-chief-opens-maysilo-
drain-project
 https://coconuts.co/manila/news/dpwh-flood-interceptor-project-blumentritt-70-
done/
 https://www.pna.gov.ph/articles/1036477
 https://pia.gov.ph/news/articles/1009098
RESOURCES