Right Bank Outfall Drain
Right Bank Outfall Drain (RBOD) is a drainage canal being built on right bank of Indus river in Pakistan[1]. It consists of RBOD-I, RBOD-II and RBOD-III canals which are in different phases of completion. It is important drainage project to save Manchar and other fresh water lakes of Sindh. This is a major drainage project on right bank of Indus river and will same 4.3 million acres of land from logging and salinity hazards[2].
RBOD-I, originally known as Nara Valley Drain (NVD) was built in 1932 to carry flood water into Lake Manchar, biggest fresh water lake in Pakistan[3] [4] . In 1981 it was remodeled to carry aggriculture effluent by linking it to various drainage canals in Sindh. Since then, it is polluting Manchar Lake and there was a need to redirect polluted water. Currently, Indus link is being made, which diverts water from Lake Manchar to RBOD-II. The RBOD-I collects water from the Miro Khan pumping station in Qambar Shahdadkot District to fall into the RBDO-II at Sehwan.
RBOD-III collects saline water from Balochistan into RBOD-II. RBOD-III starts from the Hairdin pump station in Balochistan. The wastewater (1,200 cusecs in all) is to be channeled through two different routes into RBOD-I.
RBOD-II is 275 Km long. The effluent from RBOD-III and RBOD-I will be carried to sea through the RBOD-II to save Manchar Lake from pollution and saline water. In its absence, water from RBOD-I and RBOD-III are going into Manchar lake. It will also drain flood water and surface runoff from upper catchment areas to the sea. Discharge point to Arabian sea is Gharo Creek in Thatta district. RBOD-I falls into RBOD-II at Karampur village in the Sehwan area of Jamshoro District[5] .
Work on RBOD-II started in 2001 with cost of Rs 14B and completion date was 2006. However cost was first raised to Rs 29B and subsequently to Rs 62B. New date of completion for RBOD-I and RBOD-III is November 2019 and RBOD-II in June 2019[6][7]. WAPDA is responsible and working on RBOD-I and RBOD-III. While Sindh irrigation department is responsible for RBOD-II[8].
See Also[edit]
References[edit]
- ↑ "Work on Right Bank Outfall Drain-II to start soon".
- ↑ "Right Bank Outfall Drain-II extension cost increases manifold".
- ↑ "The Senate Standing Committee on Planning and Development met at the Parliament House".
- ↑ "Delay escalates Right Bank Outfall Drain cost to Rs62b".
- ↑ "Fate Unknown: Sindh's Lakes In Danger".
- ↑ "Right Bank Outfall Drain still up the creek".
- ↑ "PC-I for Right Bank Outfall Drain rejected".
- ↑ "(RIGHT BANK OUTFALL DRAIN PROJECT(RBOD-I))".
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