19 Nov 2014
Tonkin Highway / Dunreath Drive interchange taking shape
The future interchange at Tonkin Highway / Dunreath Drive is taking shape after a weekend of bridge beam installation.
A total of eight bridge beams were lifted into position, six on Saturday with the remaining two on Sunday, as part of a carefully detailed lift plan which was put in place to comply with aviation height restrictions. A 500 tonne hydraulic crane carried out the installation work.
For previous bridge beam lifts on the Gateway WA project bridge beams were stored on site prior to installation. Last weekend’s bridge beam lift involved the 94 tonne beams being lifted into position as they were delivered to site. This meant the beam delivery orientation, order and timing was critical for the successful completion of the task.
With the beams now in place, the team is focusing on realigning the southbound carriageway of Tonkin Highway between Great Eastern Highway and the existing Dunreath Drive intersection. By doing so, it will open up the remaining work area on the western side of the interchange for the team.
The realignment of the southbound carriageway is scheduled for Thursday night, 20 November. The realignment of the northbound carriageway is set to take place before the end of the year.
The Tonkin Highway / Dunreath Drive interchange is on track for completion at the end of next year.