The construction contract for the Colorado River Bridge is due to be advertised on 8 June, the US Federal Highway Administration has announced. The bridge will be the centrepiece of a 5.6km project to realign the congested US 93, which currently runs across the top of the Hoover Dam. The composite concrete deck arch bridge will provide a spectacular river crossing 450m downstream of the dam. Approach contracts in Nevada and Arizona are already under way.