Metolong Downstream Conveyance System

In acknowledgment of the critical importance of providing potable and adequate water supplies to the domestic and commercial consumers of the lowland areas in Lesotho, the government of Lesotho sought assistance from the European Union to develop the Metolong Dam and Water Supply Programme (MWSP). The MWSP consists of the construction of the main dam (Metolong) and the downstream conveyance system and WBHO was awarded contract 2 of the Downstream Conveyance system.

The scope of work includes the construction and initial operation of the following main components;
-

65km gravity lines and rising mains ranging from 660mm OD to 200mm OD

- Two 2.5ML reservoirs, a 0.75ML and a 3ML reservoir with operator, guard houses and chlorination buildings
- 129l/sec (272kw) Booster Pump Station with 500kL Pressed Steel Tank sump
- 1.1 km gravel topped mountain access road to the Mantsebo Command Reservoir.


Contract duration:
Jan 2012 - Feb 2014

Contract value:
R 265 Million

Consultant:
GIBB-GOBA JV

Client:
Metolong Authority

Location:
Ha Majane, Lesotho

Beira Terminal

WBHO Projects Mozambique and our subsidiary Renniks Construction are in partnership to undertake the Rehabilitation of Engen's Beira Terminal. The project consists of demolition of steel fuel tanks, steel fuel pipelines, some existing buildings as well as concrete structures of a 60 year old depot which has been out of commission for the past 25 years.

The scope of work includes: Construction of a concrete paved road within the depot, installation of storm water and oily water disposal line, construction of an oil water separator, concrete bund walls with over 2500m² of formwork, installation of fire protection, HDPE pipeline measuring 3km, over 2km of electrical sleeves, steel gantry structure and rehabilitation of some existing buildings.

Contract duration:
Mar 2013-Oct 2013

Contract value:
MZN 139 Million

Engineers: 
MAJ Projects

Client:
Engen Petrolium Mozambique LDA

Contractor:
WBHO Projects – Renniks Construction - Joint Venture.

Location:
Beira Port

Temba Pipeline

EMPLOYER
Roodeplaat Temba Water Services Trust

CONSULTANT
Temba Roodeplaat Consulting Consortium

YEAR COMPLETED
2005

VALUE AT COMPLETION
R67M

LOCATION
South Africa, Gauteng

PROJECT TYPE
Pipelines and Infrastructure



Matola Gas

EMPLOYER
Matola Gas Company

CONSULTANT
VGI Consulting Engineers

YEAR COMPLETED
2005

VALUE AT COMPLETION
R119M

LOCATION
Mozambique

PROJECT TYPE
Pipelines and Infrastructure

DESCRIPTION
Ressano Garcia to Matola, Mozambique

Saspipe JV

EMPLOYER
Sasol Oil

CONSULTANT
VGI

YEAR COMPLETED
2011

VALUE AT COMPLETION
R200.7M

LOCATION
South Africa, North West Province

PROJECT TYPE
Pipelines and Infrastructure

DESCRIPTION
Construction of a 146 km 10” all welded steel liquid components pipeline between Secunda and Sasolburg 2,851,200 m2 Clear & Grub 192,926 m3 Excavation 60,000 m3 Bedding & Padding material 19,293 m3 Rock to be removed 7,875 m of Wetland crossings 877 m of Pipe jacking underneath roads & railways 762 m of Horizontal Drilling underneath major rivers.

Kusile Pipeline

EMPLOYER
ESKOM

CONSULTANT
ESKOM

YEAR COMPLETED
2011

VALUE AT COMPLETION
R60M

LOCATION
South Africa, Mpumalanga

PROJECT TYPE
Pipelines and Infrastructure

DESCRIPTION
Installation of 28km, 700mm Ø Fully Welded Steel Pipeline from Kendal Power Station to Kusile

AC Secondary Water Mains

EMPLOYER
Ethekwini Water & Sanitation

CONSULTANT
BKS (Pty) Ltd

YEAR COMPLETED
2010

VALUE AT COMPLETION
R708.4M

LOCATION
South Africa, KwaZulu Natal

PROJECT TYPE
Pipelines and Infrastructure

DESCRIPTION
Pipelines (2 500 000m of pipe various diameters) Associated valves and fittings

Shashe pipeline

Shashe pipeline
EMPLOYER
Water Utilities Corporation, Government of Botswana

CONSULTANT
Gibb Botswana

YEAR COMPLETED
2008

VALUE AT COMPLETION
R110M

LOCATION
Botswana,

PROJECT TYPE
Pipelines and Infrastructure

DESCRIPTION
900 mm ductile iron pipes: 18km 600 mm ductile iron pipes: 22km 450 mm ductile iron pipe: 5km Concrete chambers: 143 no Large diameter air valves: 85 no Cross connections: 6 no Line valves : 20 no

SAPREF Project

EMPLOYER
SAPREF – South African Petroleum Refineries

CONSULTANT
VGI Incorporated appointed by the Joint Venture

YEAR COMPLETED
2008

VALUE AT COMPLETION
EURO 13M (WBHO’S 50% JV PORTION)

LOCATION
South Africa, KwaZulu Natal

PROJECT TYPE
Pipelines and Infrastructure

DESCRIPTION
Detailed design, supply and laying of new replacement pipelines in lieu of refurbishment of existing lines. The 7 existing petrochemical pipe lines are running between the SAPREF refinery and National Port Authority at Durban harbor. The work constitutes approximately 79,1 kms of seamless carbon steel piping to be laid and welded in approximately 16km of trenches, with a minimum cover of 1,2m above the pipes. Pipe diameters vary between 6” to 14” (156mm to 365mm). The new pipe lines need to be laid in the existing servitude (on average approximately 5m wide) above, amongst or below the existing lines while the existing lines are still in operation. The construction of numerous surfaced detours to accommodate traffic during construction. The permanent reinstatement of the roads and road furniture after the pipes have been laid, as most of the pipe route is within major collector roads. Obstacles along the pipe route include but are not limited to, two major concrete lined storm water channels, 6 railway crossings, the Engen tanker gate, a bowling clubhouse and out buildings, 5 major road intersections with traffic loads in excess of 2500 vehicles per hour during peak hours and the congested Island View port complex at Durban harbor.

Ntimbale water treatment works

EMPLOYER
Government of Botswana, Department of Water Affairs

CONSULTANT
Knight Piesold Consulting

YEAR COMPLETED
2008

VALUE AT COMPLETION
R48,0M

LOCATION
Botswana,

PROJECT TYPE
Pipelines and Infrastructure

DESCRIPTION
Contract consisted of a Flocculation Chamber, Clarifiers, filter room, pump station, reservoir, chlorination building and administration buildings. Water for works is pumped via 15km long 400mm diameter pipeline from Ntimbale Dam on the Tati River Water feed into an elevated buffer tank located at the works on the Treatment Plant Water flows into a 7.9Ml reservoir and distribution pump stations feeds the distribution network supplying 52 villages