Repairs and Strengthening to Damaged Sea Wall and Promenade inside Naval area at Colaba in Mumbai.(Ch.510m to ch.1500m) From WNC Mess Gate to INS Kunjali Gate.

Amount

Item No. 1 :- Excavation for foundation in earth, soil of all types, sand, gravel and soft murum including removing the excavated materials upto a distance of 50 metres beyond the building area and stacking and spreading as directed including dewatering, preparing the bed for the foundation and necessary backing filling, ramming, watering including shoring and strutting etc. complete

Item No. 2 :-Providing and laying trap stone rubble stone soling 15 cm to 20 cm thick including hand packing and compacting for the foundation including conveying with all the leads & lifts and laying at required places as directed etc complete under tidal conditions.

Item No. 3 : - Providing and laying in situ M:20 plain cement concrete of trap metal for foundation and bedding including bailing out water manually, formwork,compacting and curing. Etc complete in tidal condition

Item No. 4 : - Providing and laying in situ plain cement concrete M-30 of trap metal for retaining wall and such other items including bailing out water manually, formwork, compacting ,finishing the exposed faces with sufficient minimum thickness of 1:3 cement plaster to give asmooth and even surface or roughening the exposed faces if special finish is to be provided and curing .

Item No. 5 :- Providing and laying Cement concrete wearing coat M-25 grade including complete as per drawing and Technical specifications.

Item No. 6 :- Providing and fixing heavy duty inter locking concrete Rubber mould glossy paving blocks of 80 mm thickness of having a strength of 400 kg/Sq.cm. of approved quality and shape on a bed of crushed sand of 25 to 30 mm thick including skirting joints and cleaning etc. complete

Item No.7:- Providing and fixing 25 mm diameter steel anchor dowel in hard rock including hole of 32 mm diameter upto 0.75 mtrs. depth, placing the dowel in position and effectively grouting the hole with CM 1:1 proportion etc. complete.

Item No. 8 :- Providing and fixing mat finish stainless stell (of 302 grade) railing with top pipe of 50 mm dia. And vertical pipe of 38 mm dia at 0.60 m c/c or as reqired and horizontal pipes of 25 mm dia in three rows, all pipes of 2 mm thick including buffing, fabricating fixtures and fastening including pipe base of appropriate diameter and ball base of 75 mm dia above newel post 75 mm diameter etc.complete (Prior approval of sample and brand by Ex.Engineer is necessary before use)

Item No. 9:- Providing weep holes of 100 mm diameter of PVC as per drawing for return walls, abutment returns etc. complete.

Item No. 10 :- Providing and laying concrete pipes of I.S.NP. Class of 300 mm diameter in proper line, level and slope including necessary collars, excavation, laying, fixing with collars in cement mortar 1:1 and refilling the trench complete.

Item No. 11 :- Providing and laying trap stones weighing 100 to 200 Kg. for core layer including quarrying, conveying with all the leads, lifts, laying in required line, level, slope including necessary equipments and machinery, such as cranes with adequate capacity and boom length as directed etc. complete, in the tidal conditions.

Item No. 12:- Providing and laying trap stones weighing 300 to 500 Kg. for sub aromur layer including quarrying, conveying with all the leads, lifts, laying in required line, level, slope including necessary equipments and machinery, such as cranes with adequate capacity and boom length as directed etc. complete, in the tidal conditions.

Item No. 13:- Providing and laying trap stones weighing 1500 to 2000 Kg. for Armour layer and Toe berm including quarrying, conveying with all the leads, lifts, laying in required line, level, slope including necessary equipments and machinery, such as cranes with adequate capacity and boom length as directed etc. complete, in the tidal conditions.

Item No. 14 :- Restoration and Rearrangement of stones displaced from existing protection bund weighting above 1000 kilogram for Apron/ Armour layer including collection,sorting and laying in required lines, level,slope as per drawing including necessary eqipments and machinery as directed by etc. complete in tidal conditions.