between Newman and Port Hedland. Construction of the Fitzroy Crossing to Halls Creek section began in October 1981. The route had been surveyed in 1979; with the collaboration of the Western Australian Museum, Main Roads ensured it would not impact important Aboriginal heritage sites. After five years of work, including the construction of nine bridges, the widened and sealed section was completed on 7 September 1986. At the time, this was the final section of the nationwide Highway 1 to be sealed, and there was national interest. The media captured the completion on camera, while the federal Minister for Transport, Peter Morris, together with the Western Australian Minister for the North West, Ernie Bridge, rode on the bitumen truck for the final spray. With this section completed, the Newman to Port Hedland section of Great Northern Highway was the only significant section of unsealed highway in Western Australia. Newman to Port Hedland A realignment of the highway between Newman and Port Hedland had been proposed since 1976, which would see the road deviate to the west at Newman, and travel via Wittenoom instead of Marble Bar. In the early 1980s, eleven route corridors were investigated by Main Roads. The potential impacts on the natural environment, regional economy, tourism, and resident population were considered, with particular concern for the crossing of the Hamersley Range. As the highway would pass through the Hamersley National Park, the Environmental Protection Authority decided in 1983 that an Environment Review and Management Program report was required for the Newman to White Springs section. Consultants prepared the report for Main Roads, which found that the key risks were erosion, visual impact, and possible damage to flora. A detailed survey was carried out, which included the use of laser and infra-red measuring devices from within a helicopter, and numerous field trips to determine the final alignment and bridge sites. A comprehensive Environmental Impact Statement was then produced, and the project was approved in mid-1984. In early 1986, the contract for this segment through the Munjina and Mungina East gorges was awarded. Construction of this segment involved tight control over earthworks and machinery movements, to protect the National Park ecology. The finished road was a scenic route curving down through the Munjina Gorge and out onto the Fortescue River flood plain, with cuttings and embankments blending it in with the natural environment. It was opened on 12 June 1987