Scope of Work:	Underground GPR mapping to locate all the underground buried manholes up to depth of 3 m.
Location:	Silvassa, Daman and Diu
Client:	L&T.
Equipment:	GSSI SIR 4000 equipped with 400 MHz center frequency antenna.
Summary:	The GPR survey has been carried out along the proposed to find all buried manhole at Silvassa for designing of sewer network for Silvassa Smart City Silvassa, Daman and Diu, in the month of October 2022. The scope of the work includes the mapping of all the possible buried manhole in the area, up to the depth of around 3 m using non-destructive Ground Penetrating Radar technology. Total area scanned was around 36 km .Considering the client's requirements and the expected depth, the area has been surveyed using 400 MHz center frequency antenna mounted with SIR 4000 to cover the depth up to 3 m.