The proposed RBOD is the extension of RBOD system existing on the right bank upstream of Sehwan and being collected as MNVD, which is out flowing into Manchar. The salinity of the drainage water has contaminated Hamal Lake and Manchar Lake. In order to maintain the salinity control, the drainage effluent being collected in MNVD is to be disposed off into the sea rather than contaminating Mancher Lake or river Indus downstream Sukkur Barrage.
RBOD, along its route will be required to cross a number of major and minor irrigation canals, flatbed and hill torrent natural nallahs, major bridges and major national highway grid arteries and secondary roads.
The medium structures in Reach-I comprising of two (2) Hill Torrents/Nallah Crossings have been entrusted to the Consortium comprising of M/s. ECIL, EA and NDC. The Consultancy Services include the detailed design, drawings, contract documents and construction supervision of:
Nai Sann Crossing at RD 196.6
Nai Karo Wah Crossing at RD 269
Surveys and Investigation
Preliminary and detailed design and drawings
Tender documents, BOQ, Specification and Engineer's Estimate
Construction supervision manual
Construction Supervision Phase
Detailed construction supervision of the project