survey work of tiru river for fixing red and blue line from tiru dam to confluence near tiruka village tq . jalkot dist . latur , item no1:-procurement of village map /forest map/ land plan from forest/ revenue authority for preparation of land plan record etc . complete including necessary payment for the plans and other documents as necessary for this survey and ploting and demarcation work etc . complete . spec . no . : as directed by engineer in charge . , item no . 2:- fixing control points by differential global position system ( dgps ) instrument at every one km along he both side of river including collection of necessary flood data etc . complete including labour welfare cess , service tax , labour insurance and all applicable taxes etc . complete as directed vide technical circular of meri nasik no . dso/pb-4/1582 dated 16/11/2015 . , item no . 3:- providing permanent bench mark dressed stone of basalt , granite or gneiss of size 30cmx30cmx45cm at least 15cm below the ground and embedding it to a depth of 30cm in grade m-15 in situ concrete of size 90cmx90cmx60cm deep over 1m deep foundation concrete of grade m-10 including excavation , concrete , providing and fixing stone and backfilling the pit up to ground level with sand etc . complete . , item no . 4:- traverse survey along with cross section at 100 c/c along river . the levels on cross section shall be at every 30m c/c beyond past observed flood line , using differential global system ( dgps ) instrument including labour . transportation , using sounding by boat in river in wet condition and transfer of entire data to computer system different geo referrential layers / themes using features of standard plotting software computable with design software package including contour plotting required interval and at a scale and following delivereable etc , complete as directed vide technical circular af meri nashik no . dso/pb-4/1582 dated 16/11/2015 . a ) survey in dry condition ( 80% ) , item no . 4:- traverse survey along with cross section at 100 c/c along river . the levels on cross section shall be at every 30m c/c beyond past observed flood line , using differential global system ( dgps ) instrument including labour . transportation , using sounding by boat in river in wet condition and transfer of entire data to computer system different geo referrential layers / themes using features of standard plotting software computable with design software package including contour plotting required interval and at a scale and following delivereable etc , complete as directed vide technical circular af meri nashik no . dso/pb-4/1582 dated 16/11/2015 . b ) survey in wet condition ( 20% ) , item no . 5:- interval by using standard software scale 1:5000 showing prohibited line ) along with mapping of structure complete as directed vide technical circular of meri nashik no . dso/pb-4/1582 dated 16/11/2015 . , item no . 6:- providing computerized detailed cross section drawings in two copies at 100 m interval with actual profile of river ( levels at every 30 m distance along cross section ) on a-3 size paper with scale 1cm 1sm which is suitable as per site condition showing 25 year return flood line ( blue line ) and 100 years return flood line ( red line ) computed by software analysis and submission in the form of soft and hard copy as directed by engineer in charge . so as to use the data of above item no . 215 to 217 by hec ras software- including submission of check print and getting approval of engineer in charge etc . all complete as directed vide technical circular of meri nashik no . dso/pb-4/1582 dated 16/11/2015 . , item no . 7:- :- computation of blue line ( 25 year return flood line ) by using hes - ras software including estimation of flood getting approval of competent authority for the same giving all the precise necessary input details into the software viz . cross sectional and longitudinal features of the stream , flow obstruction etc . including site validation and recalculation to the satisfaction of engineer in charge etc , all complete as directed vide technical circular of meri nashik no . dso/pb-4/1582 dated 16/11/2015 . , item no . 8:- providing computerized detailed river alignment with contours on a-1 size paper with scale 1 cm 15m or 30m whichever is suitable as per site condition ( one sheet for one km . length of river ) with contour at 0 . 50 m interval including marking 25 years return flood level ( blue line ) & 100 years return flood level ( red line ) & showing locations of bridges , kt weirs & other permanent structures on each drawing along and across the river as directed by engineer in charge . including providing one color check print & six hard copies ( color print ) with one soft copy etc . all complete as directed vide technical circular of meri nashik no . dso/pb-4/1582 dated 16/11/2015 . , item no . 9:- marking of 25 years flood level ( blue line ) & 100 years ( red line ) on permanent structures like bridges , templates & other permanent structures along & across river including painting , lettering at every not less than 100 m interval & not more than 500 m on both the banks of river , after the final approval of flood level as directed by engineer in charge etc . all complete as directed vide technical circular of meri nashik no . dso/pb- 4/1582 dated 16/11/2015 . . , item no . 10:- :- preparation of autocad drawing with colour print for building /bridge / road/ cd works in required size etc . complete . a1size , item no . 11:- :- autocad drawing with colour printout for item building/bridges/road/ cd works in in required size etc . complete . a1size