borehole drilling in kenya



Irrigation, Borehole services, electrical,                                                                   P.O. Box 45237-00100

Mechanical &general Engineering                                                                           Nairobi

Mobile: 0722740522                                                                                                                         


Date: 06/04/2020

Item Item Description / LOKORA & KRC Site Qty Cost      ( Ksh)    
  Works comprises of design and fabrication of a 32 Cubic metre tank on a 12 meters tower. The bidder is to supply with tank and foundation designs for approval before works commences on the ground. The steel plates, strut and tie members of the frame as well must be assessed at the fabrication site and approved before transportation to site.

Material specifications

•                Hot rolled sections to BS 4360 Grade 43A or equivalent.

•                Cold formed sections to BS 5950 Part 5: 1997 or equivalent.

•                Bolt and nuts to BS 3692 and BS 4190 or equivalent.

•                Welding specifications to BS 5135 or equivalent.

•                Welding electrodes to BS 635 or equivalent.

•                Wind load to CP3 chapter V part 2

  Provision for geotechnical investigation for the tank        
Site investigations foundation and tank design for the proposed site. Provide for report to guide foundation design. 1 180,000    
Supply and install on the foundation RC beams 32M3

pressed steel tank

Viking metric cold pressed mild steel panels 6 mm thick. Sectional water tank to BS 1564 part 2 complete with 3mm thick pitched roof cover, internal and external ladders, bracings, vent cleats, stays, manhole with lockable cover, glassticord joining compound, galvanized nuts, bolts, washers, sealants and starndard100NB threaded nozzles (All these Galvanized). To include 3 coats of non-toxic bituminous paint finish to interior surfaces of tank 1 1,250,000    


Supply design materials and install 12m Mild Steel tank tower. Tower to BS499 complete with complete with access ladders ladder to the deck, 1m wide 2.1mm thick suspended chequered steel plate walkway round the tank with 1.5m high guard railing, Internal access ladder into the tank, standard finish of 1 u/c zinch chromate and 2 f/c aluminium paint on external surfaces of tank, steel deck, walkway, sealants and standard100NB threaded nozzles glassticord joining compound, galvanized nuts, bolt, washers , and access ladder 1 830,000    
  Plumbing works 2 1/2’’ G.I class B for inlet, outlet,        
Plumbing works to the tank and connection to the existing reticulation system at 10m distance and test for leaks and strength overflow and wash out. Provide for Functional Float and pointer type water level indicator. All pipes till ground level complete with sockets, unions, tees, Valve chambers with lockable lids, Pegler gate valves and any other necessary monger as will be directed by the site engineer. The inlet pipe should however be free of gate


1 220,000    
Civil Foundation works- to CESWI 5 and BS 8004 Civil works for the concrete foundation columns anchored on a raft foundation/ strip foundation as will be directed by the

Engineer upon approval of the foundation details and design proposed by the contractor.

1 510,000    
Sum Total     2,990,000    
16% VAT     478400    
Total     3,468,400