To main content

Port expansion, Onne

In May 2011 Boskalis was awarded the project for the expansion of the Federal Lighter Terminal and Federal Ocean Terminal of the Onne Port Complex by Prodeco International Limited. The project entails the reclamation of approximately 200 ha with suitable materials from nearby borrow areas.

In the Port Harcourt area, the Onne Oil & Gas Free Zone is undergoing a massive expansion under the management of Intels & PRODECO. The facilities in Onne are for the oil & gas industry to serve as a supply base, warehousing, fabrication yards amongst other related activities. Furthermore there is a general container cargo port facility. For all sectors of activities there is a requirement for more space, more quaywall length, with sufficient deep water and more industrial areas are required. The present steps to increase capacity are well on their way, and both civil construction and dredging & reclamation activities are progressing well. Nigerian Westminster Dredging and Marine Ltd is in charge of and responsible for the dredging and reclamation activities. Two areas of each approximately 100 ha are to be reclaimed with sand coming from the Bonny River. For this project, the trailing suction hopper dredge Waterway was mobilized as well as the cutter suction dredger Jokra both owned by the Company. Moreover a whole range of auxiliary equipment was brought to site such as but not limited to bulldozers, hydraulic excavators, wheelloaders, survey vessel, tugboat and barges. The NWDM workshop on site is supporting all activities. The workforce of over 250 persons originates mainly from Nigeria. A lot of focus is always to work with the local communities to supply workforce and to train the workforce as well as to make sure the local communities are benefiting from the spin off from the works. Supplies, additional equipment hires and manpower are mainly arranged through the host communities as well as accommodation for the Nigerian workforce. In a short time frame of less than a year the works advanced well and a large quantity of of sand has been taken from the borrow areas to fill the complete the reclamation of the FLT area and the start the reclamation of the FOT area. The sand has been pumped ashore with utmost care for environment and the difficult subsoil conditions to avoid landslides or other disruptions. The quality control of the works, the settlement of the subsoil of the reclamation areas and the sand supplied was constantly monitored by our in-house geotechnical engineers. To execute the required geotechnical tests NWDM has its own geotechnical laboratory on site.

Related projects

Selected filters
IMG_0064_header.jpg

Port development, Gothenburg

Gothenburg turns around some 34 million tons of cargo annually, including 700,000 TEU (containers), and is unique in the region. With regard to the variety and frequency of calls from intercontinental liner trade the port is outstanding in Sweden. The port can be reached from the sea via two different channels: Torshamnen Fairway and Böttö Fairway. From a navigational point of view both channels needed to be deepened and widened at a number of places. Thus there were two good reasons to enhance the fairways: securing the port’s future as the premier port for liner trade and creating safer navigation. This resulted into a major dredging contract which was awarded in June 2002 to Boskalis Westminster Dredging Company.

03_header.jpg

Remediation, Urk harbor area

Many port areas requiring dredging works have been forced to put projects on hold due to the absence of an environmentally safe solution for the disposal or processing of contaminated sediments. While this is a global problem, the availability of central, large-scale repositories in the Netherlands has transformed disposal economics at the national level. Nevertheless, the high level of debris encountered during the dredging of ports and harbors remains a major challenge to all contractors. The hydraulic transport of sediments with a high debris content is impossible.

Pusan_New_Port_5_header.jpg

Port construction, Pusan

The 4th largest container terminal in the world is located in the South East of the South Korean peninsula at Busan. As the old port is completely surrounded by the metro-city, expansion of the old port is restricted. To solve the chronic phenomenon of cargo congestion MOMAF (Ministry of Marine and Fisheries) decided in 1997 to construct a new port situated 20 km west of Busan with a final total handling capacity of 4.6 million TEU and total expenses of 4.2 billion USD.

mejillones_5_header.jpg

Port construction and environmental monitoring, Mejillones

Boskalis International B.V. was working as a subcontractor to the Chilean civil contractor Empresa Constructora BELFI SA, which was awarded the contract to construct phase 1 of the New Mega Port Mejillones. This port has been developed in order to ship the copper of the Chilean mining corporation CODELCO.

Luchtfoto_milieubrochure_header.jpg

Cleanup, Ketelmeer

Ketelmeer, a lake in the Netherlands with a length of some 10 kilometers and a width varying from two to three kilometers, separates the North Eastern and Southern Polders constructed during the late 1960s and early 1970s. It is a major example of the problem of 'historic pollution'. Lake Ketelmeer receives the waters of the Rijn and IJssel and over a period of three or more decades, tens of millions of cubic meters of highly contaminated sediments entered Ketelmeer from hundreds of upstream locations. The bottom was covered by polluted sediments to an average depth of 50 cm. A significant proportion of this material had to be removed, or capped by the cleaner sediments of recent years, if a normal aquatic environment was to be restored.

Warnow_Tunnel__3__header.jpg

Tunnel construction Warnow, Rostock

The Warnow Tunnel is located in Rostock, Germany, at the old mouth of the river Warnow in the Baltic Sea. In the DDR period this area grew out to be the main harbor of East-Germany. After the 'turn' (die Wende) in 1989 the port more or less died. Goods came cheaper and quicker from Rotterdam, Bremen and Hamburg by rail.