Restoration of six tanks namely Uthirakosamangai tank, Vithanur tank, Vella Marichikatti big tank, Vella Marichikatti small tank, K.Kodikulam tank and Mayakulam tank in Keelakarai Taluk of Ramanathapuram District.

Clearing Juliflora Jungle without uprooting etc., complete complying with standard specification and as directed by the departmental officers.

Dismantling Without damaging the near by strectures if any, clearing away and carefully stacking materials useful for reuse for any thickness of wall in Brick or stone masonry in cement mortar walls under 3m high etc, complete as directed by the Engineer in charge of works and as per the technical specifications etc complete.

Dismantling Without damaging the near by structures if any,clearing away and carefully stacking materials useful for reuse for any thickness of Plain cement concrete etc, complete as directed by the Engineer in charge of works and as per the technical specifications etc complete.

Earthwork in all soils except hard rock requiring blasting and conveying for formation of flood bank/bund from approved borrow area and transporting the same with a lead of 0 to 100 metre deploying earth moving machineries and Tippers including benching, formation of bunds,breaking clods, watering to Opitimum moisture content (OMC) and compaction of each layers to 95 % of procter density through deployment of appropriate compaction equipment (8-10 T) power roller / vibratory power roller/ short width (+0.90m width drum) power roller or vibratory power roller / Fuel operated or elect-operated vibratory plate compactors,ensuring compaction of designed bund section including side slope complete as per standard specification as directed by the Departmental Officers

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 SS.20B

Earth work Excavation for foundation in hard stiff clay,stiff black cotton soil, Hard red earth, shales, murrams, gravel, stoney earth and earth mixed with small size boulders and hard grvelly soil depositing on bank including shoring strutting and bailing out water wherever necessary, well rammed consolidated and deposting the surplus earth in places as shown by the departmental officers with an initial lead of 10metres and an initial left of 2 metres and clearing, levelling the site etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and erecting centering for sides and soffits including necessary supports and strutting upto 3.29m height for Plane surfaces as detailed below in all floors with all cross bracings using mild steel sheets of size 90 x 60 cm and 10 BG stiffened with welded mild steel angle, of size 25 mm x 25 mm x 3 mm for boarding laid over silver oak joist of size 10cm x 6.5 cm spaced at about 90 cm centre to centre and supported by casurina props of 10cm to 13 cm dia spaced at not more than 75 cm centre to centre etc., complete complying with standard specification and as directed by the departmental officers. (payment for centering shall be given after the concrete has been laid)

Centering without struting

Centering with struting

Providing and placing in position of Plain Cement Concrete M15using hard broken granite coarse aggregate (well graded) size of 40 mm to I.S. Specification grading (to achieve the specified characteristic strength of 15 N /mm2 at 28 days) and mixing the ingredients by using mixer machine including dewatering of the placement site by bailing / pumping and dewatering wherever necessary laying the concrete in layers as directed and in bays, compacting, watering, curing, finishing the surface with all leads and lifts so as to attain the profile and strength as specified in the approved drawings, complete complying with standard specification and as directed by the departmental officers.(With Out Vibrator)

Providing and placing in position of Plain Cement Concrete of M 15 Graded Mix using hard broken granite coarse aggregate (well graded) 60% of nominal maximum size of 40mm and 40% of nominal maximum size of 20mm to I.S Specification grading (to achieve the specified characteristic strength of 15 N / mm2 at 28 days) and mixing the ingredients by using mixer machine including dewatering of the placement site by bailing / pumping and dewatering wherever necessary, laying in concrete in layers as directed and in bays compacting and vibrating, watering, curing, finishing the surface so as to attain the profile and strength as specified in the approved drawings, complete complying with standard specification and as directed by the departmental officers. ( with vibrator)

Providing and placing in position Plain Cement Concrete of M20 using hard broken granite coarse aggregate (well graded) of nominal maximum size of 20mm to I.S specification grading ( to achieve the specified characteristic strength of 20 N/ mm2 at 28 days ) and mixing the ingredients in by using mixer machine including dewatering of the placement site by bailing / pumping and dewatering wherever necessary, laying the Concrete in layers as directed and in bays compacting , watering, curing, finishing the surface so as to attain the profile and strength as specified in the approved drawing, complete complying with standard specification and as directed by the departmental officers.

a. Without Vibrating

Providing and placing in position of Plain Cement Concrete M15 using hard broken granite course aggregate (well graded) of nominal maximum size of 20mm graded to I.S.Specificaiton grading ( to achieve the specified characteristic strength of 15 N / mm2 at 28 days ) and mixing the ingredients in by using mixer machine including dewatering of the placement site by bailing / pumping and dewatering wherever necessary laying the concrete in layers as directed and in bays compacting and vibrating watering curing finishing the surface so as to attain the profile and strength as specified in the approved drawing, complete complying with standard specification and as directed by the departmental officers.

With Vibration for Cut off wall

Supplying and filling with M.sand in foundation and basement with filling sand in layers of not more than 15cm, thick well rammed watered and consolidated etc., complete complying with standard specification and as directed by the departmental officers.

Refilling with excavated earth (other than sand) with all leads and lifts for filling the open cut wherever necessary in layers including breaking clods watering and compaction using Power Roller to atleast 95% of Proctor Density at OMC in each layer and sectioning etc as directed by the Engineer in charge of work.

Collection and Supply of M.Sand gravel mix 1:1 (one sand and one gravel) ratio for basement / filter zone including stacking, mixing and spreading the sand gravel mix in layers of not exceeding in 150 mm thickness over properly prepared surface, watering and consolidating the same with approved type of compaction equipment including stacking for pre-measurement etc complete complying with the standard specification and as directed by the Engineer in charge of the work.

Supplying and fixing cut stone roughly dressed to size all faces and set in cement mortar 1:3 (One cement and three sand) including all incidental charges such as finishing and curing etc., complete complying with standard specification and as directed by the departmental officers.

Supplying, fabricating and placing in position of ribbed tor steel bars of various diameters for all reinforced concrete works, including cost of rods and binding wire, labour charges for cutting the bending, tying and fixing in position for various depths and heights below and above ground level complete as directed by the Engineer complying with standard specification

Supplying demarcation R.C.C. pre cast post of size 0.15 x 0.15 * 1.2M in Cement concrete M20 grade with well graded aggregates and the nominal maximum size of coarse aggregate of size 20 mm and fixing the post 45 cm depth below ground level, the post includes using 4 numbers of 8 mm RTS main rod to a length of 1.35 M, using 6 mm MS 9 numbers as strrups with steel centering and painting the post with enamel paint to a height of 0.75 M alround the post etc. complete and conveying the post to the site of demarcation boundary such as tank bund and foreshore including earth work excavation for foundation in HSC, and the post embedded by using Cement concrete M15 grade coarse aggregate of 20 mm over levelling course of M10 grade -40mm, as per the direction of the Engineers and complying with standard specification.

Fabricating and supply of country wood plug size of 40 * 40 cm and 45 cm to 60 cm height. The plug rod with 20 mm dia mild steel rod size of 3.0 m to 4.50 m height, The plug top side, middle, centre and bottom side covered iron strap - 3 nos. Plate thickness size 3 mm steel plate. The plug hole size 10 cm to 25 cm dia. etc., including cost of rod , wrought and put up and fixing in correct alignment in position. The plug painted with two coats of Varnish, the rod painted with two coats of best anti-corrosive paint and conveyance to the work site including loading, unloading. The rates should be inclusive of all taxes and duties and including fixing charges etc. complete complying specification and as directed by the Engineer.

Supplying and ercting water tigh steel centering for sides and soffits including necessary supports with all cross basin using Mild Steel BG 10 gauge sheets of size 90x60 cm stiffened with welded mild steel angles of size 25x25x3mm laid over silver oak (country wood) joists of size 75x5cm spaced at about 45cm c/c and supported by casurina props of 10cm to 13cm dia spaced at 75 cm c/c for vertical plain concrete etc., complying with standard specification and as directed by the departmental officers ( The retrived materials should be taken back by the contractor ) the payment for centering shall be given after the concrete is laid for field bothies and flow measuring device (Field Channel)

Plastering with Cement Mortor 1:4 (One cement and Four sand) 20mm thick including all incidental chares such as scaffolding finishing curing for various depth and height below and above ground level etc complete as directed by the Engineer in charge of work complying with the standard specification ( by Manual Mixing )

Supplying, Laying, Jointing and fixing in position of R.C.C. Hume pipes of NP 3 class of 900 mm. Dia with suitable collars including labour charges and jointing materials, etc., complete complying with standard specification and as directed by the departmental officers

Supplying and fixing 90 degree "V" notch made up of Mild Steel plate of size 60 x 100cm, 5.0mm thick for carrying capacity upto 4 cusec confirming to the specification communicated by the Chief Engineer, WRO,PWD, DR&CS, Chennai in Circular No. 3/CE(DR&CS) /SE(D)/AEE VII/2009/ Dated, 27-10-2009. The plate shall be plane, rigid and perpendicular to the walls and flow of the approach channel. The upstream face shall be smooth. The vertical bisector of the notch shall be equi- distance from the two walls of the channel. The crest of the notch shall be horizontal, plate which shall from a sharp edge at its intersection with the upstream face of plate. The width of the crest, measured perpendicular to the face of the plate .The width of the crest, measured perpendicular to the face of the plate between 1mm and 2mm, filed to a angle of 45 degree with horizontal (as per the sketch enclosed with above mentioned circular) The side surface shall be vertical, plane surfaces which shall make sharp edge at this intersection with the upstream face of the weir plate. Fixing and installation of the “V” notch has to be done in conformity to the guidelines furnished in the above circular of Chief Engineer, WRO,PWD, DR&CS, Chennai and as directed by the departmental officers. Fixing “V” notch and other arrangement shall be carried out as per the drawing enclosed. The rate including cost and conveyance of all materials etc, complying with standard specification.

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

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