WBIW/EE/CDOD/e-NIT- 15/2025-26 SL-6

Detailed topographical & hydrographical survey of various River/khals/Drainage Channels/Canals/Dam/Reservoirs/Beels etc using higher precision instruments like DGPS/RTK/Total Station or land survey,ADCP/ECO-SOUNDER for water body survey etc along with Total Geo-referency(X-Y-Z) alignment and plotting on google earth/arc GIS based map for taken cross sections, long sections of drainage channels /khals/Rivers(Extending each cros section upto 50 m from toe of country side at both side banks) w.r.t nearest known ground contour point (GCP)/Teogometrical survey (GTS) Bench mark,including additional crosssection(both U/S and D/S) at the point of bridges ,regulators,cross drain, inlets,trubutories,branch channels,drais,out channels from pump houses,important structures etc. including additional cross sections at adjacent outfall point of this drainage channel / khals/Rivers into other rivers for 250 m U/S and 250 m D/S of that outfall point and showing detail topographic planed of parmanent and tempurarly features like roads,canal,bridges,park,culverts,boundary wall,electric post,transforma etc. as avaible within the area,also including preparation of survey planned showing the location of topo point of FRL/G point L/Bed level /Berm level/HFL/LWL/Free-Board/pond/depression /Road etc with appropiate RL and open area/green area/total ground coverage/nature of land for mentioning in the drawing with suitable scale true north and relevent photographs etc as per direction and satisfaction of EIC.complete in all respect.The cross section interval shall be fixed as and when required as per direction of EIC .Raw data for mathematval modelning(in prescribe format as per direction of concern authority) of survey work will also be submitted in time to time during working day. Note : ( i) the rate inclussive of all incidental charges like all type carriage, ingaugement of man power and instrunents/equipments,motor board/power driven boat with man power if required.Data proccssing integrated softwere etc. as appicable to complete to work in allrespect but the rate is exclussive of all taxes) i)Cross section with 0.0 m to 250.0 m and cross section interval of 30 m to1 20 m c/c along river/khal/drainage channel etc. a) up to 5.00 Km

b) 5.00 Km to 10.00 Km

c) 10.00 Kim to 20.00 Km

d) 20.00 Km to 26.626 Km

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