Construction of Check dam across Ayyanar Kanal odai in Poolathur Village of Kodaikanal Taluk in Dindigul District

Clearing light jungle and disposing of the same as directed by the departmental officers complete complying with standard specification.

Earth work excavating and depositing on bank with initial lead of 10 m & 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 boulders etc., complete complying with standard specification and as directed by the departmental officer.

SDR - (Not Requiring Blasting) Earth work excavating and depositing on bank with initial lead of 10 m & initial lift of 2m in Soft disintegrated rock, laterite, soft rock or kankar, not requiring blasting etc., complete complying with standard specification and as directed by the departmental officer.

MR-&-DMR (Not Requiring Blasting) Earth work excavating and depositing on bank with initial lead of 10 m & initial lift of 2m in medium rock and dense medium rock not requiring blasting etc., complete complying with standard specification and as directed by the departmental officer.

Earth work excavating and depositing on bank with initial lead of 10 m & initial lift of 2m in Hard rock measured in solid including blasting & stacking etc., complete complying with standard specification and as directed by the departmental officer.

Providing and placing in position of plain Cement concrete of grade M15 with well graded aggregates and the nominal maximum size of coarse aggregate of 40mm (60%) and 20mm (40%); weigh batching the ingredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 15 N/mm2 at 28days) including dewatering the placement site by bailing/pumping and by diverting wherever necessary; laying the concrete in layers of various thickness and in bays; vibrating compacting and finishing the surface with all leads and lifts; watering curing complete so as to attain the profile and strength as directed by the Engineer in charge of works and as per the technical specifications.

Above 1.50 m - 4.50 m depth below G.L.

Upto a height of 1.00 m above G.L. and Upto 1.50 m depth below G.L.

Above 1.0 m and upto 4.50 m Height

Above 4.50 m and upto 9.00 m Height

Providing and placing in position of plain Cement concrete of grade M15 design mix with well graded aggregates with the nominal maximum size of coarse aggregate of 20mm weigh batching the ingredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 15 N/mm2 at 28days) including dewatering of placement site by bailing/pumping and by diverting wherever necessary; laying the concrete in layers of various thickness and in bays; vibrating, compacting and finishing the surface with all leads and lifts; watering curing complete so as to attain the profile and strength as directed by the Engineer in charge of works and as per the technical specifications. (Above 1.50 m - 4.50 m depth below G.L)

Providing and placing in position of Plain Cement Concrete of grade M 20 design mix with well graded aggregates with the nominal maximum size of coarse aggregate of 20mm; weigh batching the ingredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 20N/mm2 at 28days) including dewatering of placement site by bailing/pumping and by diverting wherever necessary laying the concrete in layers of various thickness and in bays, vibrating compacting and finishing the surface, adequate water curing so as to attain the profile and strength specified in the approved drawing and specifications etc, complete as directed by the Engineer in charge of works and as per the technical specifications

Above 1.50 m - 4.50 m depth below G.L.

Upto a height of 1.00 m above G.L. and Upto 1.50 m depth below G.L.

Above 1.0 m and upto 4.50 m Height

Supplying and Erecting water tight steel centering for sides and soffits including necessary supports and shuttering including strutting for retaining wall and all R.C.C. works etc up to 3.29 m height with all cross bracings using mild steel BG 10 sheets of size 90cm x 60cm gauge stiffened with welded mild steel angles of size 25x25x3mm for boarding laid over silver oak (country wood) joist of size 10cm x 6.5cm spaced at about 90cm centre to centre and suitably supported by casuarina props of 10cm to 13cm dia spaced at 75cm centre to centre, including cost of materials etc., complete complying with standard specification and as directed by the Departmental officers. The payment for centering shall be given after the concrete is laid and the retrieved materials should be taken back by the contractor.

Without Strutting

Above G.L. Height 3.29 m (with strutting)

Above G.L. Height 3.29 m to 4.29 m (with strutting)

Above G.L. Height 4.29 m to 5.29 m (with strutting)

Above G.L. Height 5.29 m to 6.29 m (with strutting)

Above G.L. Height 6.29 m to 7.29 m (with strutting)

Above G.L. Height 7.29 m to 8.29 m (with strutting)

Supplying, fabricating and placing in position of RTS or MS reinforcement for all reinforced cement concrete works including cost of steel rods of all sizes including binding wires and labour charges for decoiling, cutting, bending and tying the grills in position etc., complete complying with standard specification and as directed by the departmental officers.

Rough stone dry packing for Revetment using old stone to the required thickness including stacking charges for premeasurement. etc., Complete complying with standard specification and as directed by the by the Engineer in charge of work.

Providing construction contraction and lift joints in masonry concrete including cutting, jointing and placing mastic/Tar pad of 20mm thick (1.04 kg of asphalt and 1.00 m2 mastic pad required for 1 Rmt.) at vertical joints in side of wall in required size as specified in the drawings and specification etc., Complete complying with standard specification and as directed by the Engineer in charge of work.

Drilling holes 50mm diameter in hard granite for placing anchor rod etc., Complete complying with standard specification and as directed by the by the Engineer in charge of work.

Grouting the holes of 50mm dia with cm 1:2 with w/c ratio of 0.33 in theHard granite provided at a spacing of 3m c/c on bothways in a staggered manner in the horizontal surface for fixing the anchor rod of 25mm dia RTS rod of 5.5m long in such a position that 3m length embedded into the hard granite at a down ward vertical and 2.5m length projected and bend outside the wall including clearing the drilled, hole, fixing the rod and other incidental charges etc. complying with standard specification and as directed by the Engineer in charge of work.

Providing and fixing weepholes of 110mm dia PVC pipe of a required length for protection wall, Abutment and wing wall including cost of all materials to work site including labour charges for 90cm spherical backfill arrangement with 100mm dia size broken stone granite charges of the periphery and labour charges for fixing to drain the back fill working pressure 4kg/cm2 etc, complete complying with standard specification and as directed by the departmental officers.