Statistics:

Length:
2941 km (Carnarvon to Mundabullangana: 822 km)
Termini:
Northern: Great Northern Hwy (NH1 and NH95), Mundabullangana (near Port Hedland)
Southern: Eyre Hwy (NH1) and Coolgardie-Esperance Hwy (NR94), Norseman
Suburbs, Towns & Localities Along Route:
Macleod, Minilya, Lyndon, Yannarie, Nanutarra, Fortescue, Karratha, Roebourne and Mundabullangana (near Port Hedland)

Route Numbering:

Current: 1
Road Authority Internal Classification: 1
H007 (Geraldton to Mundabullangana)

General Information:

National Route 1 is a mostly somewhat coastal route in Western Australia. In some cases it travels quite close to the coast and the Indian and Southern Oceans and at other times it is further inland, but still generally following the coastline.

The quality of the route varies from rural 2 lane highway to multi-lane suburban arterial road and also freeway standard.

History:

North West Coastal Highway:
1974: Sealing of North West Coastal Highway between Carnarvon and Port Hedland. 2
December 1994: Completion of realignment of North West Coastal Highway as part of the Barrabiddy Deviation, 140 km north of Carnarvon. 3
1995: Cement strengthening and reinforcement work to low lying sections of North West Coastal Highway as part of the Barrabiddy Deviation, 140 km north of Carnarvon. 3
October 2001: Work starts on replacement bridge over the Gascoyne River at Carnarvon to replace the single lane bridge that was built in 1931 from concrete, steel and timber. The works included the construction of a new two-lane bridge with a two-metre wide pedestrian and cycle path, and improvements, including road widening and reconstruction of North West Coastal Highway from south of the Gascoyne River to just north of the Blowholes Road turn-off, a distance of 12.5 km. 4
September 2004: Work commenced to cyclone damage to the Maitland River Bridge and adjacent sections of North West Coastal Highway, approximately 20 km west of Karratha. The works included construction of relief floodways and improved rock protection for the approach embankments. 48
November 2010: Construction of 2 overtaking lanes on North West Coastal Highway between Burkett Road and Barradale. 5
Reconstruction, widening and resurfacing on a 107 km section of the North West Coastal Hwy between Mia Mia and Barradale, plus the addition of two passing lanes and two all-weather bridge crossings constructed at Cave Creek and Goodeman Creeks. 6 Bridge works on the North West Coastal Highway, between Carnarvon and Karratha to replace bridge bearings and expansion joints on the bridge over Yannarie River. 7
November 2015: Completion of widening and resurfacing of approximately 40 km of road north of Minilya, including and replacing old culverts with new culverts. 8
2018: Roll out of 3G changeable road conditions signs on the North West Coastal Highway in the Pilbara region. 9

Mundabullangana (Port Hedland) to Carnarvon

image

NEW Gascoyne River:

North West Coastal Hwy (NR1) crossing Gascoyne River, North Plantations, March 2019.

Image © Paul Rands

Click or tap here for the continuation of NR1 between Geraldton and Carnarvon
1 WA Government, Main Roads Western Australia, Road Information Mapping System.
2 WA Government, Media Statements, Main Roads East Perth building named Don Aitken Centre, 25 May 1993.
3 WA Government, Media Releases, Contract awarded for strengthening cement across Barabiddy Creek (Gascoyne), 31 August 1995.
4 WA Government, Media Statements, Go-ahead for new Gascoyne Bridge, 28 September 2001.
5 WA Government, Media Statements, New passing lanes on NW Coastal nearing completion, 19 November 2010.
6 WA Government, Media Statements, Construction to start on 107 km upgrade of North West Coastal Highway, 13 February 2015.
7 WA Government, Media Statements, Contract awarded for Yannarie River Bridge, 5 February 2015.
8 WA Government, Main Roads Western Australia, Projects, North West Coastal Highway Widening Minilya to Nanutarra.
9 WA Government, Main Roads Western Australia, Latest News, Rolling out new signs in the Pilbara, 21 December 2018.