Mitchell Freeway, Stage 1
From Engineering Heritage Australia
Stage 1 of the Mitchell Freeway, Perth, Western Australia, extends from the north abutment of the Narrows Bridge to the Hamilton Interchange in West Perth.
Part of the Stephenson Metropolitan Area plan, a modern road system linking Perth’s northern, southern, western and eastern suburbs was required to avoid traffic congestion for vehicles entering, leaving and bypassing Perth’s CBD. With the completion of the Narrows Bridge in 1959 Perth had a direct connection to its immediate and distant southern suburbs.
Planned, designed and constructed between 1966 and 1972, the Mitchell Freeway Stage 1 successfully provided a direct connection to Perth's immediate northern suburbs.
Engineering Heritage Recognition Program
| Marker Type | National Engineering Landmark (NEL) |
| Award Date | 18 November 2008 |
| Heritage Significance | There were several achievements arising from the design and construction of Stage 1 of the Mitchell Freeway. These include the innovative method of compressing the mud layers of the reclaimed Mounts Bay by installing sand drains and sand surcharge, the decision to sink concrete caissons to isolate supporting bridge piers from horizontal or vertical movements; and the construction a deep cutting through the western business district of Perth. |
| Nomination Document | Available here. |
| Ceremony Booklet Ceremony Report |
Ceremony Booklet available here. . |
| Plaque/Interpretation Panel | Available here. Mitchell Freeway Stage 1 - Interpretation Panel Text |
