Permanent restoration of distribution system and allied works under WSS Changi Kangrail damaged due flash floods under SASCI.

Earth work in excavation by manual means in trenches for foundations, drains, pipes, cables etc. (not exceeding 1.5 m in width) and for shafts, wells, cesspits and the like not exceeding 10 sqm on plan, including dressing of sides and ramming of bottoms lift upto 1.5 m, including getting out excavated earth and disposal of surplus excavated earth as directed: in All kind of soil

Providing and fixing of G.I. pipes complete with G.I. fitting excluding trenching and refilling etc. (External work) a) 50mm dia

b) 40mm dia

c) 25mm dia

d) 20mm dia

e) 15mm dia

Filling available excavated earth (excluding rock) in trenches plinth sides of foundation etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering lead upto 50m and left upto 1.5mtr. (Deduct for not rolling and watering the excavated earth)

Welding, including transportation of plant at site etc. complete by electric plant

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) 25 mm nominal bore

40 mm nominal bore