22/12/2022 - Four (4) tenders for the repair of 38 major landslip sites were received, a comprehensive evaluation process of tenders was then completed. A report outlining the recommended tender has now been forwarded to NSW Public Work Advisory (PWA) for their endorsement. It is anticipated PWA will evaluate the tender acceptance report and respond back to Council mid-January 2023. For further information see Master Project Page Severe weather events reconstruction work - 2022 | Shoalhaven City Council (nsw.gov.au)
August 2020 Storms and flood natural disaster event AGRN923 brought the worst flooding the region has seen in 30 years with almost 400mm of rain falling in four (4) days, causing damages to 170 locations and Councils assets. Burrier Road sustained various damage in seven (7) locations. Of this damage, there were two (2) landslips impacting Burrier Road that required one (1) lane of the road be closed, while repair options were investigated, designed and construction work tendered out.
March 2022 AGRN1012 and September 2022 severe weather natural disaster events again caused significant damages across the Shoalhaven LGA including 98 landslips affecting local public roads managed by Shoalhaven City Council. Of this damage, 38 landslips were recognised as “moderate to major" and have been packaged as one (1) large project - the design documented by specialist consultants SLR and be tendered out for construction by specialist contractors.
Of this package of work, four (4) landslips are along Burrier Road. This brings the total number of landslips affecting Burrier Road to six (6).
Stage 1 landslip repair – 2 landslips
Stage 1 landslip repair involves the repair of two (2) landslips caused by the August 2020 storm and flood natural disaster events.
Location of these two (2) landslips:
- Rural address 446 - Chainage 3500m
- Rural address 446 (Skyline) – Chainage 3560m
Both landslips were re-damaged by two (2) rainfall events in 2022, as a result construction work ceased whilst repair work was re-designed.
Stage 2 landslip repairs – 4 landslips
Stage 2 landslip repairs involve the repair of four (4) landslips caused by the February and June 2022 storms and flood natural disaster events.
Location of these landslips are at road chainages:
- Rural Address 107 - Chainage 540 to 920m
- Rural Address 446 - Chainage 3320 to 3340m
- Rural Address 446 - Chainage 3640 to 3900m
- Rural Address 691 - Chainage 5780 to 6420m
The repair of these landslips is part of the 38 major landslip package tender, issued for public tender 31 October 2022, closing 6 December 2022.
Stage 1 – 2 landslips – August 2020 rainfall event
Chainage 3500 to 3560m (Skyline) – Rural address 446
- Geotechnical investigations and design for permanent repair complete
- Disaster Recovery Funding approved for construction
- Construction Tender awarded 17 March 2022
- The design had to be changed due to deteriorating site condition which has resulted in delay of construction works.
- This has also resulted in major variation cost which is under assessment.
- Additional funding approval is required to cover variation cost.
- Works on site was anticipated to commence in November 2022 once variation is finalised and addition funds approved.
- Anticipated construction commencement date February 2023
- Anticipated construction completion date May 2023
Stage 2 – 4 landslips – February and June 2022 rain events
- Chainage 540 to 920m – Rural Address 107
- Chainage 3320 to 3340m – Rural Address 446
- Chainage 3640 to 3900m – Rural Address 446
- Chainage 5780 to 6420m – Rural Address 691