Karachi Rains Drainage Issues Solutions by Arif Hasan

8/20/2019 Karachi Rains Drainage Issues Solutions by Arif Hasan

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KARACHI RAINS AND

THE DRAINAGE CHANNELS-

ISSUES AND SOLUTIONS

Prepared by the OPP Research and Training Institute


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Nala/Drains of Karachi

Pitchered Drain

Naher-e-Khyam Nala

Branch of city station railway nala at Jubilee Chowk.

OPP-RTI DATED : 02-08-2006


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SCHON

CIRCLE


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Nehr-e-Khyam nala 125 ft wide being covered into a box drain on one side15 feet wide & 18feet deep Remaining land is being reclaimed for Plotting.


Branch drain 50 ft wide joins Nehr-e-Khyam.

36” dia pipes, Sample shown in photo,mostly filled up with debris are the

connections of the branch drain to Nehr-e-

Khyam.


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Nehr-e-Khayyam Nala

Nahr-e-Khayyam Branch nala near Bath Island: Lawnsof Bunglows encroach over the drain

Aga Khan Jamaat Khana at Khayaban-e-Rumi over the drain

Piped culverts are bottlenecks causing chocking - needbox culverts



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Rich encroach over the nalas/drains,while the poor give space for the development of these.

Nahr-e-Khayyam Branch nala near Bath Island:Lawns of Bunglows Encroach over the drain

Orangi town Islam nagar nala: Residents undertakevoluntary dismantling of portions of their houses to

give space for the development of nalas in Orangi.

City govt. is developing these main disposals as box

drains.


OPP RTI DATED 18 08 2006


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Nehr-e-Khayyam branch drain. Encroachments

over it, demolitions by KWSB



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OPP RTI DATED : 02 08 2006


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Soldier Bazar drain

Incoming at Mai Kolachi Bypass

Out fall reduced to about 35 feet

Out fall culvert already chocked




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Mai Kolachi Bypass. Reclaiming Of mangroves land and plotting




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Mai Kolachi Bypass. Reclaiming Of mangroves land and plotting



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Boat Basin-Reclaiming of land and plottingOPP RTI DATED : 02 08 2006


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Soldier Bazar drain- encroachments over it

NBP Branch

Jewel palace

Habib Bank Branch


S ldi B d i h t it OPP RTI DATED 02 08 2006


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Girls College

The Government

School

Shaheen Complex Car Parking




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K.M.C Market

Side road

Aurangzaib Market



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Soldier Bazar drain encroachments over it.OPP-RTI DATED : 02-08-2006



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Pitchered nala

Kikri ground over the Pitcher nala at SayedMuhammad Shah road

Ghowchat market.

Masjid over theNala

Al- syed MuhammedShan road.

Nalas /drain of Karachi Besides desilting the issues in flow OPP-RTI DATED : 02-08-2006


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Nalas /drain of Karachi - Besides desilting the issues in flowPiling - negligent dumping of earth at the openings

Korangi Road. Manzoor colony nala crosses here, then

passes thru DHA reclaimed land (near Qayyumabad),and falls into the sea. Takes water from 70% Jamshed

Town also from Nursery & Airport road. Piling

for road construction, blocks the culvert openings

restricting flow.

Wide drain reduced to piped connection: Branch drain starting from Karachi cantt station (6 feet wide)becomes 50 ft wide when passing below Aga Khan Jamaat Khana. Then thru Boat Basin the branch

joins Nehr-e-Khyam. These 2 pipes, 36” dia shown in photos above, mostly filled up with debris arethe connections of the branch drain to Nehr-e-Khyam.


Water mains in nalas /drains OPP-RTI DATED : 02-08-2006


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Water mains in nalas /drains

Main Soldier Bazar drain KMC Market

Madina Colony NalaGulshan-e-Iqbal

Singar Chowrangi Korangi


Water Lines in Nala /Drains of Karachi OPP RTI DATED : 02 08 2006


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Water Lines in Nala /Drains of KarachiPir Pagara road drain – Gulshan KESC office

Haroonabad Nala


Orangi Main Nala



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Piped culverts are bottlenecks causing

chocking - need box culverts

Other services too

Mianwali Nala

Gujjar nala North Nazimabad

Haryana Nala OPP-RTI DATED : 02-08-2006


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Haryana NalaDeveloped in to box trunk thru KMC/CDGK

Before

After


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Karachi Rains Drainage Issues Solutions by Arif Hasan

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