NNT 2026 27 Renovation of CC Road and Formation of New CC Road at ward no 4 Mettu street In Thiruporur Town Panchayat Chengalpattu District

Dismantling PCC by manual / by using deploying machineries ( W-0035 Page 30 SOR 2025-26Volume 1)

Providing of Granular Sub base using Grade I materials of table 400 -1 of Morth with minimum CBR 30 spreading in uniform layers with motor grader on prepared surface, mix in by palce method at OMC and compacting with Vibratory Roller to achieve the desired density including all labourcharges etc, complete as per technical specification and as directed by the departmental officers. Morth - Rev V No. 111,112,401,900

Providing and laying, spreading and compacting graded stone aggregate to Wet mix macadam (WMM) specification including premixing the material with water at OMC in mechanical mix plant carriage to mixed material by tipper to site laying in uniform layers with paver in sub base / base course on well prepared surface and compacting with vibratory roller to achive the desired density complete as per clasue 406 of MORTH specifications.

Plain Cement Concrete 1:4:8 (one part of cement, four part of Crushed Stone Sand (M- Sand) and eight part of coarse aggregates) using 40mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges and all incidential charges such as water providing etc., complete

Supplying and erecting centering for vertical plain/ RCC concrete walls of supply channel, retaining wall etc upto 90Cm height with necessary supports,all cross bracing with mild steel size of 90cm x60 cm and gauge BG 10 stiffened with welded mild steel sheet angles of size 25 mm x25 mm x3mm for bearing laid silver Oak/ Country wood joist of size 7.50 cm x5.0 cm spaced @ about 90 cm C/C and supported by Casurina props of 10 cm to 13 cm spaced @ 75 cm C/C etc,, complete complaying with standered specfications and as directed by the departmental officers. - Plinth Beam

Plain Cement Concrete 1:1.5:3 (One part of Cement, one and half part of Crushed Sand (M- Sand), three coarse aggregates) using 20mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges etc.,

Providing Power Trowel Charges for Concrete Work Includingall other labour charges etc., complete

Supply, delivery and fixing of Bitumen Pad to 10 to 12mm thick 10 cm depth including all cost and conveyance of all materials and all other labour charges etc. complete.