Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 45 views

    Group 4 Bsce 1-3 Position Paper Purcom Finals

    Uploaded by

    Andrea Castillo
    Poor maintenance of drainage systems and waterways in the Philippines has led to flooding in many cities for decades, as clogged drains and irrigation canals reduce capacity to drain rainfall and stormwater runoff. Recent investments by the World Bank and AIIB aim to upgrade pumping stations and drainage infrastructure in Metro Manila to better manage flooding. However, more work is still needed to properly maintain drains and canals, given their continued poor condition is a primary cause of floods according to experts and reports.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd

    Group 4 Bsce 1-3 Position Paper Purcom Finals

    Uploaded by

    Andrea Castillo
    45 views5 pages
    Poor maintenance of drainage systems and waterways in the Philippines has led to flooding in many cities for decades, as clogged drains and irrigation canals reduce capacity to drain rainfall and stormwater runoff. Recent investments by the World Bank and AIIB aim to upgrade pumping stations and drainage infrastructure in Metro Manila to better manage flooding. However, more work is still needed to properly maintain drains and canals, given their continued poor condition is a primary cause of floods according to experts and reports.

    Original Description:

    Original Title

    GROUP 4 BSCE 1-3 POSITION PAPER PURCOM FINALS

    Copyright

    © © All Rights Reserved

    Available Formats

    DOCX, PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    Poor maintenance of drainage systems and waterways in the Philippines has led to flooding in many cities for decades, as clogged drains and irrigation canals reduce capacity to drain rainfall and stormwater runoff. Recent investments by the World Bank and AIIB aim to upgrade pumping stations and drainage infrastructure in Metro Manila to better manage flooding. However, more work is still needed to properly maintain drains and canals, given their continued poor condition is a primary cause of floods according to experts and reports.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    45 views5 pages

    Group 4 Bsce 1-3 Position Paper Purcom Finals

    Uploaded by

    Andrea Castillo
    Poor maintenance of drainage systems and waterways in the Philippines has led to flooding in many cities for decades, as clogged drains and irrigation canals reduce capacity to drain rainfall and stormwater runoff. Recent investments by the World Bank and AIIB aim to upgrade pumping stations and drainage infrastructure in Metro Manila to better manage flooding. However, more work is still needed to properly maintain drains and canals, given their continued poor condition is a primary cause of floods according to experts and reports.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 5

    Poor Quality Drainage System is the cause of

    Floods within some areas in the Cities of the


    Philippines
    Having a sustainable irrigation drainage system in the country is needed to
    protect each individual Filipinos from degradation of irrigated land, reduced socio-
    economic conditions, poor water quality, ecological degradation, and groundwater
    depletion (Dougherty & Hall, n.d.). As reported by Bob and Carol (2008) Philippines
    always gets a typhoon season every year, roads always get flooded due to poor
    drainage system there are no separate storm water and waste water (sewerage)
    systems. Due to inadequate maintenance, septic system waste water easily interacts
    with stormwater. As stated by Agrimag (2018) despite receiving the majority of large
    public investments year after year, the country's national irrigation systems have
    consistently underperformed. Dr. Cristina David and Dr. Arlene Inocencio of the
    Philippine Institute for Development Studies (PIDS) blame this poor performance to
    excessively optimistic technological and economic assumptions, insufficient water
    supplies, incorrect designs, and challenges in operation and maintenance. These issues
    have been reported since the 1980s and continue to exist more than 20 years later. The
    Philippines' poor drainage system is undoubtedly the main factor contributing to flooding
    in some of the country's major cities.

    In Manila, flood management presents both technical and social challenges. In


    terms of disaster, flood is the common disaster that cause widespread destruction here
    in the Philippines, properties and the environment every year and occur at different
    places with varied scales across the nation. Some weather forecasts and researchers
    say that floods are causes also by human activities, which damage the environment, for
    instance, sand mining, deforestation and poor garbage disposal, increase the risk of
    flooding. Flood disasters are caused by natural phenomena, but their occurrences and
    impacts have been intensified through human actions and inaction (Stoutjesdijk, 2018).
    Although, there is validity to the presented argument. There are several following main
    causes of flooding in our nation. Some are improper agricultural practices, deforestation
    is very common as well and heavy rainfall resulting from tropical weather disturbances
    especially in our country, the Philippines. In urban places or cities, floods happen when
    soil cannot absorb water from downpours. Floods also occur when a river outburst its
    banks and the water spills onto the floodplain. Not to mention, these past few decades,
    the city has grown rapidly, but new pumping stations have not been constructed to meet
    the needs in low-lying areas. Areas around waterways are often densely populated, with
    dwellings encroaching over the water, affecting water flow and preventing maintenance
    and desilting. In addition, as was clear again during the typhoon Karding, solid waste
    clogs waterways and entrances to pumping stations. Along with catastrophic floods like
    those brought on by tropical storm Ondoy in 2009 and the southwest monsoon rains
    exacerbated by typhoons in the years 2012, 2013, and 2014, more frequent floods
    brought on by brief thunderstorms are a hazard as well. Traditional explanations for
    flash floods include the reduction in infiltration caused by urban concrete, an outdated
    drainage system, and blocked streams. It identifies additional elements to locate
    reasonably priced solutions to traffic issues brought on by floods (Lagmay et al., 2017).

    True that not only the Drainage system is the cause of all floods, but it sure does
    mitigate floods. The impacts of flooding can be devastating. Huge financial burden often
    follows major storm events to recover from structural damage. Well-designed drainage
    systems allow for effective discharge of stormwater, reducing property losses and
    expenditures on recovery. Flood risk management is critical to safeguarding urban
    watersheds from such hazards and managing natural resources efficiently. Depending
    on whether engineering or policy interventions are employed, flood mitigation strategies
    include both structural and non-structural techniques (Brody, Highfield, & Kang, 2011).
    To deal with recurring flood issues in the United States, structural approaches focused
    on mechanical solutions such as levees, dams, reservoirs, detention basins, sewage
    line repairs, and channel form alterations have traditionally been used.

    Over the past few decades we did not see any improvement of drainage system
    but according to World Bank and the Asian Infrastructure Investment Bank (AIIB) they
    have approved of this funding to improve flood management in select drainage areas in
    Metro Manila. Flooding is a frequent concern in Metro Manila, particularly during the
    typhoon season, which runs from June to October. They flood roadways, aggravate
    traffic congestion, and ruin people's lives, infrastructure, and livelihoods, particularly
    those of the poor. The Metro Manila Flood Management Project would upgrade 36
    existing pumping stations, build 20 new ones, and enhance supporting infrastructure
    along vital waterways in the cities of Manila, Pasay, Taguig, Makati, Malabon,
    Mandaluyong, San Juan, Pasig, Valenzuela, Quezon City, and Caloocan. Many of the
    current pumping stations in Metro Manila were built in the 1970s and have since
    become inefficient and underperforming. (World Bank, 2017)

    Moreover, flash floods during thunderstorms are caused by the city's drainage
    system's limited capacity to carry flow due to improper maintenance of irrigation and
    drainage canals. Poor drainage can cause landslides and mudflows, which may be a
    risk to people and their property. Numerous flash flood situations occur as a result of the
    drainage system's poor maintenance and overflowing garbage, which prevents
    rainwater from draining swiftly and effectively. Silt, trash, and other blockages are
    causing flash floods by reducing the drainage system's carrying capacity by up to 50%.
    In addition, the width of the drains contributes to the difficulty for rainwater to flow
    (Abdullah, 2018). Based on Ians (2017), urban flooding is solely the outcome of human
    activity. Poorly maintained drainage, plastic bags, the lack of open space, and climate
    change all contribute to the buildup of water on roads after a significant downpour.

    Although there has been much discussion on the matter, it is evident that the
    country's poor drainage system is the main reason behind floods in our cities. This is
    made evident by the facts that factors such as improper agricultural practices,
    deforestation, solid waste that jams waterways and pumping station entrances, poor
    maintenance of drains and irrigation canals, and solid garbage are the main causes of
    flooding in our country. Traditional explanations for flash floods include the reduction in
    infiltration caused by urban concrete, an outdated drainage system, and blocked
    streams. These issues have persisted for more than 20 years despite allegations of
    them dating back to the 1980s. Having that reasons, the Philippine government should
    concentrate on maintaining and clearing the blocked drainages and clogged waterways.
    This would resolve the problem of sanitization, health issues, and particularly floods.
    Furthermore, the national government should construct and maintain more drainage
    outlets, as this will help mitigate the issue of drainage system inefficiency. Evidently, the
    country's inadequate drainage system is one of the primary causes of flooding in our
    cities and should be more actively addressed by the government.
    References:

    Abdullah, N. I. B. (2018). Clogged drains to blame for flash floods.


    https://www.malaysiakini.com/letters/446463

    Agrimag. (2018). Philippine agriculture saddled by poor irrigation systems.


    https://www.agriculture.com.ph/2018/02/12/philippine-agriculture-saddled-by-
    poor-irrigation-systems/

    Bob & Carol. (2008). Sewerage/septic/drainage systems in the Philippines.


    https://myphilippinelife.com/sewerage-septic-philippines/

    Dougherty, T.C. & Hall, A.W. (n.d.). Major Impacts of Irrigation and drainage projects.
    https://www.fao.org/3/V8350E/v8350e09.htm

    Federigan, L. (2022). Flooding is a risk and must be addressed.


    https://www.manilatimes.net/2022/05/28/business/green-industries/flooding-is-a-
    risk-and-must-be-addressed/1845237

    Fritsch, M. S. (n.d.). Health issues related to drainage water management.


    https://www.fao.org/3/w7224e/w7224e0b.htm?
    fbclid=IwAR2YsBHGiBamRhgMxE8sa7dyOtILsMpO6XLEHTaQ6W7tuvM6pdBN
    9Loyajc

    Ians (2017). Urban flooding caused by plastic clogging, poor drainage: Experts.
    https://www.thenewsminute.com/article/urban-flooding-caused-plastic-clogging-
    poor-drainage-experts-68194

    Lagmay, A. M., Mendoza, J., Cipriano, F., Delmendo, P. A., Lacsamana, M. N., Moises,
    M. A., … Tingin, N. E. (2017). Street floods in Metro Manila and possible
    solutions.
    https://www.sciencedirect.com/science/article/abs/pii/S1001074216315005

    Philippines: WB, AIIB Approve Funding for Flood Management in Metro Manila. (n.d.).
    World Bank.
    https://www.worldbank.org/en/news/press-release/2017/09/28/philippines-wb-
    aiib-approve-funding-for-flood-management-in-metro-manila

    Sohn, W., Brody, S. D., Kim, J.-H., & Li, M.-H. (2020). How effective are drainage
    systems in mitigating flood losses? https://doi.org/10.1016/j.cities.2020.102917
    Stoutjesdijk, J. (2018). Managing floods for inclusive and resilient development in Metro
    Manila. https://blogs.worldbank.org/water/managing-floods-inclusive-and-
    resilient-development-metro-manila

    Presented by:

    BSCE 1-3
    GROUP 4
    2022

    Castillo, Andrea Nicole E.


    Henoguin, Ivan M.
    Pagador, Meryll Clare A.
    Samblero, Abednego Glen Oliver C.

    You might also like