ROADS & BRIDGES | ASPHALT PLANTS
Linnhoff asphalt plant overcomes logistical challenges on TEMA ROAD PROJECT A Linnhoff TSD1500 MobileMix asphalt plant achieved remarkable progress on the high-profile grade separation of the Tema Motorway Interchange project in Ghana.
T
he roundabout at the interchange had been troubling motorists with its severe traffic congestion, which often exceeded 1 km during peak hours, and had become a pressing issue for the government to tackle. The Project for the Improvement of Ghanaian International Corridors was
therefore implemented – one of the priority projects proposed in the West Africa Growth Ring Corridor Master Plan. A US$57 million (R909 million) grant from the Japan International Cooperation Agency soon followed in aid of this project. The motorway interchange at Tema, Ghana’s largest port city, forms the crossroads of two of the country’s busiest international corridors: the National Highway 1 (N1), which hugs the Ghanaian coastline virtually all the way between its borders with Ivory Coast
The Linnhoff TSD1500 MobileMix asphalt plant produced 52 000 t of hot mix asphalt for the project
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IMIESA May 2022
and Togo; and, in the far east, National Highway 2 (N2), its main north-south highway, which leads up to the border with Burkina Faso.
Scope of works In February 2018, work on the Tema Motorway Interchange began, transforming the roundabout into an interchange with an underpass. Also included in the scope was the construction of a 2.1 km three-lane dual carriageway with 730 m underpass on the N1, and the improvement of 1.9 km of two-lane dual carriageway on the N2. It also included the paving of five service roads and eight ramps for right-turning traffic, a 190 m long box-culvert underpass, four disabilityfriendly pedestrian bridges, traffic signals, street lighting, and other safetycritical features.
