conduction "continuous scour monitoring" of foundation of bridge no. 30 (yamuna)between pryj-nyn station of pryj-ddu section of prayagraj division. using sonar echo-rang technology by airmar echo range ss510 smart sensor or similar equipment on trialbasis and submitting continuous monitoring data, analysis and preparation/submission ofdetailed reports of continuous scour monitoring data, generating alarms/sms alerts andvalidation of reports with grounds levels.bidding type normal tender .