Bids have been invited by 15 November for the long-awaited contract to expand the Sitra causeway to cope with increasing traffic congestion on the route.Nine companies have been prequalified for the work, which is estimated to be worth in excess of $150 million, by the Works & Housing Ministry. The prequalifiers are understood to include Belgium’s Six Construct, Interbetonof the Netherlands, Bouygues and Vinci, both of France, Geneva-registered Archirodon Construction (Overseas) and India’s Gammon. The Danish/local COWI-Almoayedis the consultant. The project calls for the construction of two new concrete bridges with lengths of 200 metres and 400 metres, and embankments with a total length of 2.4 kilometres, adjacent to the existing causeway. The road will initially be widened to three lanes in each direction, with the possibility of a future expansion to four.