Mega-Bridge is now Beaming with Pride
The last of the beams on the Mega-Bridge are now in place.
Published: 25 January 2024, Updated: 15 February 2024
After a year-long construction process, the last beam was lifted by crane and installed at the Boyanup-Picton Road overpass bridge, also known as the Mega-Bridge.
Due to the sheer sizes of the beams, two different, impressively sized cranes were used during the process. The beams required a combined 18 days of crane relocation and mobilisation, let alone actual installation. Daytime and night shifts, as well as extensive traffic control across multiple roads, were necessary to ensure safe and efficient installation with minimal disturbance.
The bridge will carry road users over Boyanup-Picton Road, Golding Crescent, the Ferguson River and a freight rail line - making it the longest bridge not just on BORR but across the entirety of the South West. It connects to the existing outer ring road which was built in 2013 as part of Stage 1.
The Mega-Bridge on 15 Dec 2022
The Mega-Bridge on 21 Dec 2023
Bridge By Numbers
Whether you are a number cruncher or a beam counter, here are some of the key statistics about the Mega-Bridge.
- 1 river, 1 freight rail line and 2 road spans crossed
- 11 precast headstock shells for cross-support
- 33 columns 1.5 metres wide and up to 7.5 metres tall
- 43 pile structures measuring up to 2.2 metres in diameter and drilled as deep as 27.5-37 metres into the ground
- 60 beams in total made up of 12 spans of 5 beams, and up to 43 metres in length and 2.2 metres deep
- 67-70 tonne precast headstock shells that are then filled with 77-84 cubic metres of concrete
- 200+ tonne bridge beams
- 382 metres in length
A Trip Down Mega-Bridge Memory Lane
Revisit our news updates over the last 12 months, detailing many of the milestones completed.
- December 2022 Piling works on the Mega-Bridge
- May 2023 Artwork design is unveiled
- July 2023 Installation of columns
- First precast headstock installed
- October 2023 Beam installation begins
Want us to ‘spill the beams’ on what’s coming up next for the Mega-Bridge?
The concrete deck pour has now commenced, which will be followed by concrete edge barrier installation (with railing) and further reinforcement works. In the meantime, check out the most recent drone footage of the Mega-Bridge.
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