chennai soon a temporary diversion stretch will be constructed on east coast road to facilitate laying of water pipes connecting nemmeli desalination plant with pallavaram on grand southern trunk gst roadtamil nadu road development corporation tnrdc which maintains the section of ecr between thiruvanmiyur and mamallapuram will be building this road for 15 lakh in the next three to four monthsthe work is expected to affect traffic on ecr in both directions as a portion of the central median near the desalination plant will be demolished so that citybound vehicles and motorists and those travelling towards mamallapuram can use the temporary roadtnrdc officials said that only if all vehicles are diverted along the temporary road metrowater will be able to finish the pipeline work soon and traffic can be restored at the earliestsuch diversions in the past have been badly planned and executed on ecr said residents and those who regularly use the highway to reach puducherry in response tnrdc officials said that the contractor who will be selected through a bidding process will be held responsible for any mishaps and specific clauses have been added in the tender documents to ensure safety of all road users