Road Structures

RMD Kwikform will be supplying tens of thousands of tonnes of its formwork and shoring for construction of Qatar’s tallest bridge on the Doha East Corridor project As well as the bridge, the Corridor contract comprises four interchanges at a total cost of US$612.5 million. Ashghal, Qatar's Public Works Authority, awarded the Corridor project to China Harbour Engineering Design and Construction. Built as a five-lane 11km bypass in Doha, the capital of Qatar, the project will also cater for a rail line

The DB 80, from Austrian manufacturer Delta Bloc, is a vehicle restraint system with a “New Jersey” profile. In conjunction with the continuous tension bar, it prevents the breakthrough of cars, according to the Delta Bloc. A Jersey barrier or Jersey wall is a modular concrete or plastic barrier used to separate lanes of traffic. It is designed to minimise vehicle damage in cases of incidental contact while still preventing the crossover case of a head-on collision. Plastic water barriers of the same gen

New road construction work in California will help cut congestion on existing routes. The work is costing close to US$104 million and will commence later in 2016 to the north of the city of San Diego. The funding for the work is coming from the California Transportation Commission (Caltrans). The work will form part of the $700 million North Coast Corridor Programme, which is being administered jointly by the San Diego Association of Governments (SANDAG) and Caltrans. North Coast Corridor Programme includes

French access group Haulotte and the Turkish access distributor and rental group Acarlar continue to contribute to major infrastructure projects in Turkey, including the new Osman Gazi Bridge. The bridge – the third Bosporus crossing - has just been completed with the installation of the last bridge deck. The bridge will reach a height of 252m and the bridge deck will be nearly 26m wide. When it soon opens, the bridge will be the fourth longest suspension bridge in the world by the length of its central

Brazil’s Tamoio Highway and São Sebastião tunnel construction is of major importance – Mauro Nogarin reports. The modernisation and expansion of Brazil’s Tamoio highway is a major project for Brazil. The project has an estimated cost of $1.5 billion and work on the first section from Planalto was completed in January 2014, costing around $350 million. The project is being managed by the state-owned agency DERSA, which deals with road development. According to the concessionaire for the Tamoios highway p

Turkey’s new Osman Gazi Bridge has now opened for traffic. This bridge can carry 40,000 vehicles/day, while halving the travel time needed using previous routes. This is a six lane suspension bridge measuring 3km and spanning the Sea of Marmara. Construction has taken 42 months and the structure has been designed to cope with the risk of earthquakes. The project has been co-ordinated by Japanese construction company IHI, with Siemens handling the role of electro and mechanical contractor. Siemens has dev

WSP | Parsons Brinckerhoff is carrying out the study for the A6 – M6 relief road in the UK, close to the city of Manchester. The study will review various aspects of the project, including the environmental issues. The new link will improve transport connections from the A6 to the Hazel Grove junction on the M60 motorway. It will also improve transport links to the Manchester Airport relief road scheme under construction at present.

Work is due for completion shortly on Nairobi’s Southern Bypass, with an official inauguration being planned. The 28.6km highway has been constructed by Chinese contractor China Road and Bridge. The project has been required in a bid to tackle Nairobi’s chronic congestion problem. The city suffers heavily from traffic delays at peak periods.