Survey and DPR Preparation for Construction of MI Scheme in Purulia District.

Establishment of DGPS (Differential Global Positioning System) base stations (Primary Ground Control Points/ Primary Benchmark) in dual frequency static mode for establishment of benchmarks for topographical or UAV (Unmanned Aerial Vehicle)/ Drone survey base station by applying the methods of connecting it to Survey of India. (SOI) GTS (Global Telecommunication System) & GCPs (Ground Control Points) and applying post processing corrections to the observed data for a minimum of 3 hrs. observation by using the methods of Triangulation or level flying in static mode only including geotagging of above, all lead and lifts etc., including all cost complete. [Please see detailed Technical Specification & Terms and Conditions]

Providing and fixing of standard bench marks with colour code, as per type design 8 of Water Resources Dept. including fixing of MS plate size 12x12x0.60 cm and 2 Nos.anchor bolts of 10 mm dia. And 30 cm length including shaping and welding etc., including cost of cement, metal and sand (for 0.13 Cum M-15 Design mix concrete with 20 mm graded metal) including labour for excavation in all type of strata, mixing, laying and curing of concrete including form work and fixing of MS plate including cost of water for mixing and curing of concrete including geotagging of above, all lead and lifts etc., complete.

Drone based LiDAR survey for 25cm DSM with Point cloud, including geotagging of above, all lead and lifts etc., including all cost complete. [Please see detailed Technical Specification & Terms and Conditions]

3) i) Above 100 Ha & upto 300 Ha

3) ii) Above 300 Ha & upto 1000 Ha

DGPS survey: Topographic and cadastral survey for head works of irrigation projects by using DGPS, with minimum 30 number of point reading per ha, to generate 15mx15m 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 1 in 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 10 soft copies and 10 hard copies before and after approval of competent authority, preparation & submission of grid and L-section nalla including geotagging of above, all lead and lifts etc., complete. [Please see detailed Technical Specification & Terms and Conditions]

6) i) For above 100 Ha & upto 300 Ha

6) ii) For above 300 Ha & upto 1000 Ha

Boring holes with auger in all types of soil up to 5 m depth below ground level including collecting samples including geotagging of above, all lead and lifts etc., complete. i) For 100 mm dia. And providing complete profile of soil character i.e ordinary soil , morum , soft rock ,hard rock etc (Minimum up to 10 no)

Preparation of DPR with design , drawing , estimate after surveying the area as per above SL no 1,2,3/4 items , collecting rainfall data for last 30 years , collecting data of existing croping patter of the benefited area , identifying catchment area ,existing water spread area , existing profile of the water body by Eco sounder,cutting area , command area , suggesting proposed crop with their water requirement ,identifying the benefited area by calculating the possible croping pattern considering the crop water requirement , evaporation loss etc , showing the Cost Benefit Ratio , have to find out the water recharging possibility, improvement in soil characteristic etc as per the guideline of central sponsored Repare Renovation Restoration (RRR) of water body, Surface minor irrigation (SMI) programme . All date use for the preparation of DPR require its sources .(Works will be done as per specificatin depicted in Technical Specification) 10 soft copies and 10 hard copies of DPR reqire. Cutting of Water body in Ha