Browns Mountain Road - Browns Mountain - Landslip

The Shoalhaven was declared a Natural Disaster Area 5 March 2022 after an East Coast Low and rain events. This had a major impact on Kangaroo Valley and surrounding communities, landslips affecting roads and property. Browns Mountain Road was severely impacted by the March 2022 events. Immediate works have been undertaken to remove debris, clear and allow restricted traffic movement.

The latest

Select image below for a closer look at the impressive design of the completed landslip repairs.

About the works

Landslip repair site and planned road closures 

Site 1. DM00706 - rural address 364 - landslip repair works are completed. 

 Below: Browns Mountain Rd is restored, and road repairs are completed.

Browns Mtn Rd - completion - Recover 3 - 28Nov23.jpg

2023 Works History

  • 14/08/2023 - Planned road closures start from Wednesday 6 September through to Friday 13 October 2023.

  • 08/08/2023 - Works are scheduled to start Wednesday 6 September through to Friday 13 October 2023.

  • 26/06/2023 - The latest update for this project is current. Further updates will be provided as new information becomes available.

  • 30/03/2023 - Landslip design plan for Browns Mountain Road is attached. Located under - Related Information.

  • 30/03/2023 - Landslip repair drop-in sessions: THURS 30 March 4 – 5pm THURS 13 April 4 – 5pm. Drop by the Kangaroo Valley Hall (177 Moss Vale Rd) where Symal and Council will answer your questions about upcoming roadworks

  • 17/03/2023 - Kangaroo Valley Information Session on Friday 17 March, 7pm - 8pm (followed by BBQ) at KV Community Hall. Meet contractor Symal and get briefing on the start of landslip works.

  • 04/03/2023 - The latest construction program proposed by contractor Symal for the 38 the Major Landslip repair work has been released. The construction program lists the planned start and finish date for each of the 38 land slips. A summary of the construction program is available on the  Major Landslip Package Planned Program of Work. A copy of the construction program is also available on the right-hand side of the Master Project Page in the related documents section.

  • 15/2/2023 Contract awarded - Council has resolved to proceed with the appointment of infrastructure and construction group Symal to repair the 38 major landslips. Council has provided Symal a schedule of works which prioritises the most urgent landslips with the first round of works to begin in late March 2023. To view the list of major landslips and the assigned construction priorities, refer to the Major landslip package priorities on the Master Project Page

2022 Works History

  • 22/12/2022 - Four tenders for the repair of 38 landslips were received. A comprehensive evaluation process has been completed and a recommendation has been forwarded to Public Work Advisory (PWA)for endorsement. It is anticipated that PWA will evaluate the tender acceptance report and respond to Council mid-January. Further information can be found on theMaster Project Page
  • 03/11/2022 - Following months of geotechnical investigations, design work and tender preparation, Council is now seeking contractors to bid on the 38 landslips deemed a priority. Submissions close 6 December 2022.Shoalhaven Area – Remediation of Multiple Slips – RFT – 10053781.

  • 18/09/2022 - Following record rain events, Council has recorded 98 landslides as a high priority, with a focus on 38 sites that are deemed most urgent. We've now finished geotechnical investigations at these 38 sites, leading the way for designs to be completed in the coming weeks. The designs form part of a works package that will go out to tender in October.
  • 16/09/2022 - Geotechnical engineers will be conducting a site investigation on Browns Mountain Road, from Wednesday 7th September 2022. Borehole drilling will be conducted to inform the design.
  • 02/09/2022 - Across the Shoalhaven, of the 98 landslides that were of highest priority, a consolidated scope of 35 will form a tender package that will be going out to market prior to Christmas. Included within that tender package is, amongst others, Woodhill Mountain, Wattamolla, and Bunkers Hill Road. The start date of contract work is likely in the new year, in the interim, regular surveillance continues.

  • 27/07/2022 - Geotechnical investigations for Browns Mountain Road are currently re investigated due to the change in landslip structure that developed from the July weather event. The investigation will include the scope to identify additional landslides.

  • 07/07/2022 - Browns Mountain Road currently has restricted access with one lane due to worsening weather conditions.
  • 30/06/2022 - Geotechnical onsite investigation continued this week with stage 1 draft ready for submission.
  • 23/06/2022 - Further Geotechnical investigations are currently being undertaken.
  • 16/06/2022 - Design has been drafted for rectification with contractor engagement underway.

  • 09/06/2022 - Traffic continues to be limited to residents only. 

  • 02/06/2022 - Restrictions remain in place with traffic being limited to residents only.
  • 26/05/2022 - Works currently on track with Geotechnical investigation analysis design in progress.

Below: Landslip damage and road deterioration from the March 2022 severe weather events

browns mountain.JPG Browns Mtn Rd - 2022 damages - Recover - Jan23.jpg