NARRATIVE DESCRIPTION OF PROJECT :

Undertaking all design (ie. civil, structural, mechanical and electrical) work for the project, which involved providing a 5km long 1200mm dia ductile iron gravity pipeline (including valves, chambers & fittings) from a dam to a treatment works, including a 40m long pipe bridge, and access roads, including undertaking a hydraulic and surge analysis.

DESCRIPTION OF ACTUAL SERVICES PROVIDED BY OUR STAFF :

Lead Design Engineer, responsible for the design of the transmission pipeline, which included flow and level control valves, and associated electrical, mechanical and control and instrumentation works. In addition, ensured all design was undertaken in line with the companies ISO 9001 quality assurance procedures.

NARRATIVE DESCRIPTION OF PROJECT :

Contract No. 1 – Dam and Associated Works including Access Road which includes:

• 40 m high, 4.6 km long, earthcore and random fill embankment dam

• Concrete lined service spillway and stilling basin

• Unlined auxiliary spillway

• Reinforced concrete intake tower and steel lined outlet conduit

• Water control plant for the outlet works

• Civil works for two pump stations and break pressure tank

• 42 km gravel access road and associated drainage

Contract No. 2 – Electrical and Mechanical Plant which includes:

• 3 No. 750 l/s, 94.5 m head centrifugal pumps with electric motors

• 3 No. 750 l/s, 60 m head centrifugal pumps with electric motor

• 4 No. 3.6 m diameter, 9.4 m long surge vessels

• Pipework and valves

• Transformers, motor starters, switchgear

• Control, protection and communication equipment

Contract No. 3 – Pipeline which includes:

• Manufacture, transport, installation and commissioning of 74 km of 1 200 mm diameter pipeline

• Construction valve pits and installation of valves

Contract No. 4 – Housing which includes:

• 5 No. Type II houses and 5 No. Type III houses

DESCRIPTION OF ACTUAL SERVICES PROVIDED BY OUR STAFF :

The services provided for the project included  :

-   A comprehensive review and update of the design and tender documents for the various works which includes the dam and associated works, electrical and mechanical plant, pipeline, access road and housing

-   Manage Botswana Power Corporation (BPC) on the installation of the powerlines and substations infrastructure

-   Tender management of the 4 No. separate Contracts

-   Construction Supervision of the various contracts

APPROXIMATE VALUE OF SERVICES :

US$ 5.5 Million

TOTAL PROJECT VALUE :

US$ 200 Million

NARRATIVE DESCRIPTION OF PROJECT :

The design, construction, commissioning of a new 3ML/d plant.

• Raw Water pumping main from Sepopa connects to the head of the new works (1.2ML Elevated Tank) (with provision for dosing of Chlorine Dioxide)

• Two parallel Flocculation Tanks (with provision for dosing of Coagulants)

• Two parallel Clarifiers, of the sludge-blanket type

• Two parallel rapid-gravity sand filters

• A water storage collection tank 104m3 (which serves as a dual-purpose pump-sump for feeding the Granular Activated Carbon (GAC) Filters)

• One Pressurized GAC filter

• 3.6ML treated-water storage reservoir, to meet the storage times/p>

• Chemical dosing equipment needed for preparation and dosing of Lime for pH correction, and primary and secondary coagulants

• A separate building for the preparation of Chlorine Dioxide

• Two parallel filter backwash water recovery tanks

• Overflow pipework that serves the Head of Works, the Clarifiers, the Filters and the Reservoir

• Two sludge Lagoons, and associated feed- and underflow pumping equipment

DESCRIPTION OF ACTUAL SERVICES PROVIDED BY OUR STAFF :

The services that are being / will be provided by staff is summarized as follows:

Responsible for the hydraulic design; integration of the electrical, control, instrumentation and mechanical design into the treatment works buildings and structures and the design of the building, structural and civil work elements

APPROXIMATE VALUE OF SERVICES :

P 3.7 Million

TOTAL PROJECT VALUE :

P 34 Million