Collie to Mumballup Road Upgrade
Greer Road to Donnybrook-Boyup Brook Road
We’re upgrading the road width from the existing six-metre seal to ten metres, with one to two-metre wide sealed shoulders on each side of the existing road.
As the landscape in this area tends to rise and fall, we have steepened the roadside batter in order to retain vegetation and minimise environmental impacts. Further design investigation will be undertaken to address some land, services and minor alignment improvements along the road.
Stage 1 work between Greer Road and Hoddell Road was completed in 2019.
Stage 2 is partially complete with approximately half of this section sealed to date. Earthworks and clearing have been completed to Glen Mervyn Dam, with construction work in this section expected to recommence in January 2022.
Development work for Stage 3 between Glen Mervyn Dam and Donnybrook Boyup Brook Road is continuing.
- March 2019: Stage 1 construction began
- May 2019: Stage 1 construction completed
- January 2021: Stage 2 construction began
- Early 2022: Stage 2 construction to resume
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