Rehabilitation of Vulnerable portion in Dharapuram Old channel from LS 10900m to LS 11200m and LS 16900m to 17050m in Dharapuram Taluk of Tiruppur District

Amount

Clearing the light jungle and destroying the same effecftively complete complying with standard Specification and as directed by the departmental officers.

ORDINARY SOIL (SS20B) Earth work excavating and depositing on bank with initial lead of 10m & initial lift of 2m in sand, silt or other loose soil, wet sand or silt not under water, light black cotton soil, sandy loam and ordinary soil, HGS SS.20B. Earth work excavating and depositing on bank with initial lead of 10m & initial lift of 2m in Hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size blulders SS.20B including excavated earth (SS20B)

Providing and placing Plain Cement Concrete M 10 grade using crusher broken hard coarse aggregate (well graded) of nominal maximum size of 40mm to I.S specified grading (To achieve the specified characteristic strength of 10N/mm2 in 28 days) and mixing the ingredients in approved mixer including dewatering of the placement site by baling / pumping and diverting wherever necessary, placing concrete in layers, water curing, finishing the surface with all leads and lifts etc., complete. etc complete as directed by the Engineer in charge of works and as per the technical specifications. as per specification clause 4.1.2 to 4.1.4)

Providing and placing Plain Cement Concrete M15 grade using crusher broken hard granite course aggregate (well graded) of nominal maximum size 60% of 40mm and 40% of 20mm and down graded to I.S specified grading (To achive the specified characteristic strengh of 15N/mm2 in 28 days) and mixing the ingredients in approved mixer including dewatering of the placement site by baling / pumping and diverting wherever necessary placing in layers and vibrating, water curing, finishing the surface with all leads and lifts etc., complete in all respects so as to attain the profile and strengh specified in the approved drawing and specifications, as per the direction of the engineer in charge of works and complying with technical specifications.

Supplying and erecting centering for sides and soffits incluidng necessary supports and struting upto 3.29m height for vertical sloped surface as detailed below with all cross bracings using mild steel sheets of size 90 cm x 60 cm and 10 BG stiffened with welded mild steel angle of size (25 x 25 x3 ) mm laid over silver oak joists of ssize 10 x 6.5 cm spaced at about 90 cm c/c and supported by casurina props of 10 cm to 13 cm dia spaced not more than 75 cm c/c etc., complete complying with standard speccification and as directed by departmental officers scaffolding and centering charges for the structural components including the cost and conveyance of all materrials to the site including all labour charges and incidental charges etc., complete complying with standard specification and as directed by the departmental officers. without strutting below ground level

Supplying and erecting centering for sides and soffits incluidng necessary supports and struting upto 3.29m height for vertical sloped surface as detailed below with all cross bracings using mild steel sheets of size 90 cm x 60 cm and 10 BG stiffened with welded mild steel angle of size (25 x 25 x3 ) mm laid over silver oak joists of ssize 10 x 6.5 cm spaced at about 90 cm c/c and supported by casurina props of 10 cm to 13 cm dia spaced not more than 75 cm c/c etc., complete complying with standard speccification and as directed by departmental officers scaffolding and centering charges for the structural components including the cost and conveyance of all materrials to the site including all labour charges and incidental charges etc., complete complying with standard specification and as directed by the departmental officers.with strutting above ground level

Supply and fabricating of steel requried for all Rcc works involved in the schedule including cost of steel. Cost of fabrication labour charges for clearing the rods stranghltening,cutting,bending tying grills including over lapping to the required length wherever necessary and placing reinforcement in position as speecified in the drawing including cost of binding wire provision for space bars, cover blocks and all other incidential charges etc., complete complying with standard Specification and as directed by the departmental officers.

SENTHILKUMAR (BID ID -1170823)