NHPC in a release said that a survey of 30 km area downstream of the dam has been carried out jointly by the PSU and Assam Water Resource Department and stretches have been identified on both the banks of the river requiring erosion control measures.
The PSU submitted its proposal and detailed project report to Core Group of Assam, constituted to implement JSC report concerning mitigation of downstream impact of Subansiri Lower Project, and it is under consideration for technical vetting and approval before its implementation.
Due to rise in river discharge on account of incessant rainfall in this area for more than a week, the bottom layer of geo synthetic trap bag got submerged and demo work has been discontinued temporarily, the release pointed out.
The portion of works done by Flexituff till date is intact and stable and no damage has been done while the site was visited by officers of Assam Water Resources Department which found the work under Demo done so far as satisfactory, the release added.