EKURHULENI
Preventing future water losses The old midblock water pipelines in Thokoza and Kathelong had either reached or exceeded their life span and, as a result, burst and leaked regularly. IMIESA takes a look at the upgrade project.
T
HE PURPOSE of the upgrade project is to relocate midblock water pipelines and water meters to the road reser ve (outside er f boundaries) and the decommissioning of old midblock pipelines (pipes in back yards). Commissioned by the Department of Water and Sanitation as part of the metro’s IDP Project, the project will ser vice wards 54 and 56 in Thokoza and wards 48 and 59 PROJECT FACTS Project design
Materials used in the construction
in Katlehong in the south-west district of Ekurhuleni. During the upgrade and replacement, it was important that these lines be placed in the road reser ve for ease of maintenance and better access for meter reading. The project will help minimise water loss, ser vice disruptions and ‘un-accounted’ for water usage due to burst pipes. In addition, the upgrade will also ensure that meter
Minimum main pipeline size is 110 mm Ø uPVC Class 9 and Class 12 at road crossings. All new pipes to be 110 mm Ø, except where CES (consultants responsible for EMM master planning) indicate a bigger size on the master plan. Main pipelines 1.5 m from erf boundaries, where possible, or as lead by other existing services. House connections to be 32 mm Ø Class 16 high-density polyethylene (HDPE) for double connections and 25 mm Ø Class 16 HDPE for single connections. All road crossings to be drilled – no open trenching for road crossings. 110 mm Ø Class 12 and Class 9 un-Plasticised Polyvinyl Chloride (uPVC). 32 mm and 25 mm Ø Class 16 HDPE connection pipes. Above-ground pilla- type meter box, complete with 15 mm water meter. Fire hydrants. PROJECT TEAM Consultant: Marobeni Consultants Contractor: Galaxy Pipelines Pipes: Incledon Valves, clamps, VJ couplings and fire hydrants: Cascade Specially-made trees: Hisco Water meters: Davies and Deale Galvanized materials: Faber Pipes Concrete, soil, sand and cement: Noags
IMIESA OCTOBER 2011 - 65