THE TARLAC CITY DIKE
By Anton Antonio
September 2, 2015
I was roused into worries by a post by Prof. Segundo E. Romero
on the Tarlac City dike. His post was
accompanied by a photo of the breached portion near the McDonald’s area. I understand the concerns of Prof. Romero
since the breached portion is near Barangay Cut-Cut where our esteemed educator
spent his childhood. His beautiful
narratives of his childhood could not hide his deep concern for the residents
of Tarlac City in the event the dike collapses.
This is not something our local government units should take
lightly. Something has to be done SOON
about this breach in the Tarlac City dike.
Wanting to understand the character of the Tarlac River
especially the segment that passes through Tarlac City, I took the liberty of
downloading a Google Earth image of this area.
This becomes necessary in analyzing the river’s contour and to identify
the pressure points. “Pressure points”,
for our purposes are the relatively narrow areas along the Tarlac River. I’ve also taken the liberty of marking them
“red”, these are: (1) north bank in Barangay Tibag in the vicinity of the Agana
Bridge; (2) south bank along the Ninoy Aquino Boulevard bordering Barangays
Carangian, Cut-Cut, Mabini, Poblacion and San Nicolas; and (3) north bank of
Barangay San Isidro. Marked in “yellow”
are the Agana and Ninoy Aquino Bridges.
Also marked “yellow” is the estimated area where the Tarlac City dike
was breached.
The Google Earth image that I got seems to be an old one since it
shows a less swollen Tarlac River. The
monsoon rains should show a larger river today.
But this is a good image since it shows the tendency of the river... the
direction it tends to go and where the Tarlac City dike remains vulnerable to
pressure when the water level goes up.
Obvious in the image are the “white” areas (showing sand) and “gray”
areas (showing the water/stream). Based
on these tendencies and directions of the Tarlac River the “pressure points”
were identified.
Having identified the “pressure points” will be insignificant if
engineering interventions are not put in place.
These “pressure points” could be studied by our city and provincial engineers
to recommend ideal and more suitable designs to counter the hydrologic pressure
caused by the rushing stream of the Tarlac River especially after heavy
downpours in the Capas and San Jose areas … upstream Tarlac River. Structural integrity should be the primary
consideration when it comes to the Tarlac City dike.
Thoughts to promote
positive action…
(Please
visit, like and share Pro EARTH Crusaders on Facebook or follow me at http://antonantonio.blogspot.com/
and http://twitter.com/EarthCrusader.)
REFERENCE: Google Earth
map
malunus na kayu man kareng kabalen tamu nanu ng malyari kareng maka tuknang malapit king diki ampong deng panyal wanan malapit karin maragul ah perwisiyu kung ali ya malarin ing diki isipan yu namu kung malarin ya yan lalu sumanting ing negosiyu kung masanting ya mayayakit ing lugar marakal mag pasyal syempre kung deng mamasyal ken kailangan lang gumastus o ninu pa ing makinabang di kase reng makatuknang ken lalu na retang atin negosiyu datang la reng mamasiyal datang ing pera kekayu.
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