Survey and Investigation work for Cleaning and Deepening of Pazhukkanilakayal in Vembanad Lake and Construction of Outer Bunds for J-block, F-Block and Thiruvayikkari Padashekarams in Thiruvarppu Panchayath and Kottayam Municipality

Amount

APPENDIX A: Topographic Survey work

od135079/2020_2021 : Clearing light jungle including uprooting of thick vegetation and small trees of girth up to 30cm and removal of rubbish up to a distance of 150m outside the periphery of the area cleared.

60.11.2 : Taking FLY LEVELS- from the nearest GTS BM and closing on the starting BM including conveyance of instruments etc along road or in heavily built up area or in roads with heavy traffic or in thick jungle ( out turn 4000 m / day )

60.11.1 : FIXING TBM- Supplying and fixing TBM with RCC 1:1.5:3 pillar block having a size of 30*30*75 cm, steel reinforcement for RCC work, painting top and sides of pillar with synthetic enamel paint, lettering in the pillar block with 8cm high "TBM" on one face and the reduced level on the outer face, etc complete, fixed in CC1:3:6 using 40 mm metal 55*55*60 cm etc complete and centering and shuttering including strutting , propping and removal of form work for pillar and foundation.

od135081/2020_2021 : Taking soundings using total station survey at an average intervals of 50 m along the length and at 50m interval along cross section in waterlogged areas (Out turn 10ha area),preparation of longitudinal section,cross sections and layout of Pazhukkanilakayal showing important structures etc complete by the departmental officers at site.

Appendix B- Total station survey

56.12.b : Total station surveying and preparation of site plan for plain built up area with hindrance to line of sight due to buildings/structures.

T K PRABHAKARAN

Bidder Name

Techno VIsionSurveys and Mapping Co PVT LTD

T K PRABHAKARAN