Annual maintenance estimate...

[14.50]Topographic and cadastral survey for command area including canal of irrigation projects by using Total station GPS, etc. (Minimum 20 number of points reading per hectare, to generate 30mx30m grid and 0.5 m interval contours including transfer of entire data to computer system in different geo-referenced layers / themes using features of standard software, compatible with design software packages, including supply of soft and hard copies of point readings, including digitizing village maps and super imposing the contours on village map (scale 1in 4000) including marking all permanent features like roads, cart tracks, existing canals, temples, tanks, forest boundary and electric poles, etc., including marking of ridges and valleys on survey sheet including supply of 4 soft copies and 4 hard copies after approval of competent authority, preparation and submission of 10m x10m grid for all structures of canal etc.complete.)