Severe weather events reconstruction work - 2022

Information on local road reconstruction works caused by the 2022 natural disasters.

 
Woodhill Mountain Road landslip
 
  • Project StatusIn progress
  • Last updated 05 December 2022

About the project

The July 2022 east coast low natural disaster event brought with it torrential rain, damaging winds and floods that resulted in widespread landslips, road damage and isolation for some in our community.

The Shoalhaven community showed incredible resilience again following the March 2022 natural disaster event that brought more heavy and sustained rainfall that caused further widespread damage to our public infrastructure and impacted many in our community.

The September 2022 severe weather and floods was also declared natural disaster but mainly caused widespread damage to communities in western NSW. This same weather event also impacted the Shoalhaven LGA although the damage to our infrastructure and the impacts to our community this time was much milder.

On this page

Background

For the months of January to July 2022, rainfall in Barrengarry alone reached a total of 2,059mm (see related documents) compared to an average rainfall for the same period of 854mm and was more than double the rainfall what residents would normally experience. This follows two summers of La Niña weather patterns with a third La Niña expected over the 2022/23 summer expecting to bring more heavy rainfall and flooding. 

During this time 3 severe weather events were declared natural disasters by the NSW Government:

  • AGRN1012 – NSW severe weather and flooding from 22 February 2022 onwards
  • AGRN1025 – NSW severe weather and flooding from 27 June 2022 onwards

The impacts on public infrastructure were significant, including:

  • 1200 records of damage and emergency works across the Shoalhaven
  • an estimated $75 million in damaged roads
  • an estimated $4 million in damage to flood levees
  • 98 landslips (38 classified as major) affecting 23 roads
  • 13 sinkholes

The estimated cost to repair the damage is nearly 4 times the value of Council's normal roads and transport annual capital work construction program budget. To respond to this challenge, Council set up a dedicated natural disaster reconstruction team to focus on the repair work.

The above data is as of July 2022. For updated data see Ordinary Council Meeting reports in Related Documents. 

The severe weather and floods in September 2022 were also declared natural disaster.

  • AGRN1034 – NSW severe weather and flooding from 14 September 2022 onwards

 

Natural Disaster Funding Arrangements 

As both severe weather events have been recognised as natural disasters, Council is eligible for federal funding to restore essential infrastructure under strict conditions outlined in

Under these funding arrangements, Council is seeking funding under Category B measures for ‘restoration of essential public assets’. There are three distinct stages of restoration works: 

Stage 1 (emergency work) - Completed

Removal of debris to allow restricted traffic movement.

Load limits (refer below) and traffic management have been imposed on some roads around the region to improve driver safety and prevent further road damage. 

Stage 2 (immediate reconstruction work) - Completed

In certain locations, significant repair work has been completed to improve public safety and restore property access for residents. See related documents for a list of the immediate reconstruction works completed to date.

Stage 3 (essential public asset reconstruction work) - In Progress

Stage 3 involves the investigation, design and construction of the initial 38 high priority landslip repairs impacting roads is a large undertaking and planning for this work is well underway.

Planning for the lower priority works, including initial investigation, recommendations and concept designs, will commence early November 2022 and will follow a similar process to the higher priority works.

Completed & Upcoming Road Works 

Northern District

Completed Pavement

Rehabilitation 

Upcoming Pavement

Rehabilitation  

  • Elliotts Ln, Meroo Meadow (unsealed)
  • Schofields Ln, Berry (unsealed)
  • Irvines Rd, Berry Mountain (unsealed)
  • Jacks Corner Rd, Kangaroo Valley (unsealed) 
  • Woodhill Mt Rd, Woodhill (sealed patch before slip)

 Unsealed Roads:

  • Abernethys Rd, Budgong - January 
  • Budgong Rd, Budgong- January 

 

 Round 1: 

 Geotechnical investigations underway. $2M RFT to be issued January 2023

  • Illaroo Rd, North Nowra
  • Hockeys Ln, Cambewarra
  • Jacks Corner Rd, Kangaroo Valley 
  • Coolangatta Rd, Coolangatta

 

 Round 2:

 Work being scoped. RFT to be issued March 2023. 

  • Kangaroo Valley Rd, Berry Mountain
  • Hillandale Rd, Broughton Vale
  • Agars Ln, Berry
  • Main Rd, Cambewarra

Central District

Completed Pavement

Rehabilitation 

 Upcoming Pavement

Rehabilitation 

 Round 1:

  • Cabbage Tree Lane, Nowra Hill
  • Callala Beach Road, Callala Beach
  • Culburra Rd, Wollumboola
  • Jindy Andy Lane, Pyree
  • Worrigee Rd, Worrigee 

 Round 2:

Round 2 RFT closed 22nd November, submission being evaluated. Aiming to have works start as follows:

  • South Street, Terara - temporary works commences early December. Final repair works commences early January 2023
  • Greenwell Point Road, Brundee - repair work commence early December 2022

 Round 3:

 Geotechnical advice being sought. Round 3 RFT to be called February 2023:

  • Terara Road, Terara
  • Commerong Island Road, Numbaa
  • Millbank Road, Terara
  • Burrier Road, Barringella
  • Yalwal Road, West Nowra

Basin District

 Completed Pavement

Rehabilitation

 Upcoming Pavement

Rehabilitation

 Round 1:

  • The Wool Road, Basin View
  • Naval College Road, Basin View
  • Evelyn Road, Basin View
  • Jervis Bay Road, Jervis Bay
  • Roper Street, Vincentia
  • Pine Forest Road, Tomerong
  • Murray Street, Vincentia
  • Woolamia Road, Falls Creek

 Round 2: 

 Round 2 Contract awarded. Work commences Jan 2023.

  • Cammaray Dr, St Georges Basin
  • Tilbrook Av, St Georges Basin
  • Albion St, Sanctuary Point

 

 Round 3: 

 Finalising scope. RFT to be issued Feb, closing March 2023

  • Braidwood Rd, Sassafras
  • Jervis Bay Road, Falls Creek
  • Dowling Street, Falls Creek

Southern District

 Completed Pavement   

Rehabilitation 

Upcoming Pavement

Rehabilitation

  

 Round 1:

 Geotechnical advice is being engaged. Round 1 RFT to be issued in February 2023:

  • Woodstock Rd, Woodstock
  • Lake Conjola Entrance Rd, Yatte Yattah
  • Sussex Inlet Rd, Tullarwalla
  • Fisherman’s Paradise Rd /Alma Av, Fisherman’s Paradise
  • Inyadda Dr, Manyana
  • Bendalong Rd, Bendalong

  

 

 

 

 

All Current Works

Completed Location District Last updated Road status Restrictions
done 1 Albion Street, Sanctuary Point 2540 01 December 2022
Closed
done 4 Cammaray Drive, St Georges Basin 2540 01 December 2022
Closed
done Abernethys Road, Budgong 2577 03 November 2022
Open
3 tonne
done Abernethys Road, Budgong 2577 28 November 2022
Open
Load limit
3 tonne
done Agars Lane, Berry 2535 21 November 2022
Open
done Bamarang Road, Bamarang 2540 03 November 2022
Open
done Bendalong road, Bendalong 2537 21 November 2022
Open
Reduced speed
done Braidwood Road, Sassafras 2622 22 November 2022
Open
Reduced speed
Road damage
done Browns Mountain Road, Browns Mountain 2540 22 November 2022
Open
done Bunkers Hill Road, Barrengarry 2577 22 November 2022
Closed
Load limit
5 tonne
Residents only
done Burrier Road, Burrier 2540 03 November 2022
Open
Reduced speed
Traffic lights
done Burrier Road, Burrier 2540 21 November 2022
Open
Reduced speed
done Cabbage Tree Lane, Nowra Hill 2540 18 November 2022
Open
done Callala Beach Road, Callala Beach 2540 18 November 2022
Open
done Comerong Island, Terara 2540 25 November 2022
Closed
Residents only
done Coolangatta Road, Coolangatta 2535 28 November 2022
Open
Reduced speed
done Crozier Road, Jaspers Brush 2535 17 November 2022
Open
12 tonne
done Culburra Rd, Wollumboola 2540 18 November 2022
Open
done Dowling Street, Falls Creek 2540 03 November 2022
Open
done Evelyn Rd, Tomerong 2540 18 November 2022
Open
done Fishermans Paradise Road, Fishermans Paradise 2539 21 November 2022
Open
done Foremans Road, Woodhill 2535 03 November 2022
Closed
Load limit
5 tonne
Residents only
done Greenwell Point Road, Worrigee 2540 Central 06 December 2022
Open
done Hillandale Road, Broughton Vale 2535 21 November 2022
Open
done Hockeys Lane, Tapitallee 2540 08 December 2022
Open
done Hughes Road, Illaroo 2540 03 November 2022
Open
done Illaroo Road, North Nowra 2540 08 December 2022
Open
Reduced speed
done Inyadda Drive, Manyana 2539 21 November 2022
Open
done Irvines Rd, Berry Mountain 2540 21 November 2022
Open
done Island Point Rd, St Georges Basin 2541 Basin 08 December 2022
Closed
done Jacks Corner, Kangaroo Valley 2577 28 November 2022
Open
done Jervis Bay Road, Falls Creek 2540 18 November 2022
Open
done Jindy Andy Lane, Pyree 2540 18 November 2022
Open
done Kangaroo Valley, Berry Mountain 2535 21 November 2022
Open
done Kangaroo Valley Road, Kangaroo Valley 2577 03 November 2022
Open
Load limit
12 tonne
Reduced speed
done Lake Conjola Entrance Road, Yatte Yattah 2577 21 November 2022
Open
done Main road, Cambewarra Village 2540 08 December 2022
Open
done Millbank Road, Terara 2540 21 November 2022
Open
done Mt Scanzi Road, Kangaroo Valley 2577 22 November 2022
Open
One lane
done Murray St - Vincentia, Vincentia 2540 18 November 2022
Open
done Naval College Road, Worrowing Heights 2540 18 November 2022
Open
done Pine Forest Road, Tomerong 2540 18 November 2022
Open
done Roper St - Vincentia, Vincentia 2540 18 November 2022
Open
done Schofields Lane, Berry 2540 21 November 2022
Open
done Scott St, Shoalhaven Heads 2540 28 November 2022
Closed
Residents only
done Suffolk Road, Tomerong 2540 22 November 2022
Open
One lane
Residents only
done Sussex Inlet Road, Tullarwalla 2577 01 December 2022
Open
done Terara Road, Terara 2540 21 November 2022
Open
done The Wool Road, Basin View 2540 18 November 2022
Open
No restrictions
done Tilbrook Avenue, St Georges Basin 2540 01 December 2022
Open
done Tourist Road, Beaumont 2577 22 November 2022
Open
done Turpentine Road, Tomerong 2540 22 November 2022
Open
Reduced speed
Road damage
done Upper Kangaroo River Road, Upper Kangaroo River 2577 03 November 2022
Closed
9 tonne
Residents only
done Wattamolla Road, Wattamolla 2535 03 November 2022
Open
Load limit
9 tonne
done Wattamolla Road, Woodhill 2535 03 November 2022
Open
Load limit
9 tonne
done Woodhill Mountain Road, Woodhill 2535 03 November 2022
Open
One lane
Reduced speed
Traffic lights
done Woodstock road, Morton 2538 09 December 2022
Open
Reduced speed
done Woollamia Rd, Falls Creek 2540 18 November 2022
Open
done Yalwal Road, Mundamia 2540 28 November 2022
Open


Major Landslip Repairs

The investigation, design and construction of the initial 38 high priority major landslip repairs impacting roads is a large undertaking and planning for this major program of work is well underway.

Geo-technical consultants, SLR Consulting P/L, have been engaged to undertake the detailed investigation and design of the landslip repair work of the 38 high priority sites. The investigation and drilling work is now complete as well as the environmental due diligence assessment and preliminary cost estimates. Design work has now reached 85%.

With assistance from the NSW Public Works Advisory, tender documents for the 38 high priority works have now been completed and were issued for public tender on 31 October 2022.

eTendering - Current Tender Detail View - RFT-10053781 (nsw.gov.au)

Tender closes 6 December 2022.

The extensive tender evaluation process is likely to take several weeks depending on the quantity and quality of the tenders submitted. Prior to Council accepting any tender, Council has an obligation to seek final endorsement from the NSW Public Works Advisory regarding the preferred tender, as well as endorsement from TfNSW who approves the final scope of work, the allocation of Natural Disaster funds and verifies compliance with the NSW Disaster Assistance Arrangements.

Allowing for the Christmas shutdown period, a tender for the 38 major land slip repair work is likely to be accepted in late January 2023 which will allow Council to enter into a construction contract.

Depending on the time it takes for the contractor to mobilise equipment, staff and to procure materials it is now most likely repair will commence in March 2023.

Project-Delivery-Time-frame-2.png  

To view the list of major landslips and the assigned construction priorities, refer to the list Major landslip package priorities:

Major landslip package priorities

 

The Prioritisation Matrix can be found in Related Documents.

Priority

Location

District

 

Rural address No. (approx)

Severity

Impact

Road Asset Chainage (kms)

 1

Bunkers Hill Rd

Northern

159

5

5

1.580-1.600

 1

Bunkers Hill Rd

Northern

 394 5  5

3.900-3.980

 1

Bunkers Hill Rd

Northern

 212 5

2.080-2.160

 1

Bunkers Hill Rd

Northern

 175 5

5

1.720-1.780

 1

Bunkers Hill Rd

Northern

 183

5

1.800-1.860

 1

Woodhill Mountain Rd

Northern

 552 5

5

5.420-5.620

 1

Woodhill Mountain Rd

Northern

 570 5

5.640-5.760

 2

Burrier Rd

Central

 333

5

3.320-3.340

 2

Burrier Rd

Central

 610

5

5.780-6.420

 2

Burrier Rd

Central

 730 5

0.540-0.920

 2

Burrier Rd

Central

 377 5  4

3.640-3.900

 3

Foremans Rd

Northern

 32 4  4

0.280-0.360

 3

Foremans Rd

Northern

 43

4

 4

0.370-0.490

 3

Wattamolla Rd

Northern

 13 4

0.10-0.1600

 3

Wattamolla Rd

Northern

 356 4  4

3.56

 4

Kangaroo Valley Rd

Northern

 1167

2

11.660-11.680

 4

Kangaroo Valley Rd

Northern

 1260 2

12.6

 4

Upper Kangaroo River Rd

Northern

 676 2

6.720-6.800

 4

Upper Kangaroo River Rd

Northern

 1291 2

12.900-12.920

 4

Upper Kangaroo River Rd

Northern

 755 2  5

7.520-7.580

 4

Upper Kangaroo River Rd

Northern

 691 2

6.880-6.940

 5

Suffolk Road

Basin

 48

4

0.420-0.540

 5

Mount Scanzi Rd

Northern

 794

3

 3

7.900-7.980

 5

Mount Scanzi Rd

Northern

 588

3

 3

5.88

 5

Mount Scanzi Rd

Northern

 823

3

8.220 - 8.240

 5

Mount Scanzi Rd

Northern

 777

3

 3

7.760-7.780

 5

Mount Scanzi Rd

Northern

 779

3

 3

7.760-7.820

 5

Mount Scanzi Rd

Northern

 587

3

 3

5.840-5.900

 5

Mount Scanzi Rd

Northern

 771

3

7.700-7.720

5

Mount Scanzi Rd

Northern

657

3

3

6.560-6.580

 6

Bamarang Rd

Central

 325

2

3.240-3.360

 6

Bamarang Rd

Central

 319

2

 2

3.180-3.200

 6

Wogamia Rd

Central

 98

2

 2

0.940-1.020

 6

Yalwal Rd

Central

 957

2

 2

9.56-9.60

 6

Abernethys Rd

Northern

 191

2

 2

1.900-1.920

 6

Browns Mountain Rd

Northern

 364

2

3.630-3.650

 6

Hughes Rd

Northern

 199

2

 2

1.980-2.000

 6

Hughes Rd

Northern

 197

2

 2

1.960-1.980

 

 

 

 

Interim Slip Repairs – Completed

The following land slip, interim works have completed under Stage 2 (immediate reconstruction works), to allow restricted traffic access under strict load limits:

  • Wattamolla Rd – two locations
  • Upper Kangaroo River Rd – two locations
  • Foremans Rd
  • Woodhill Mountain Rd
  • Suffolk Rd 

Current Road Load Limits

The following roads have strict load limits imposed for public safety:

Address

Dry Weather Load Limit

At 136 Bunkers Hill Rd, Kangaroo Valley

 5 tonne– resident access only, closed to other traffic

 24/7 load & traffic restriction enforcement in place

At 368B Bunkers Hill Rd, Kangaroo Valley

 Closed to all traffic. New cracks in roadway detected

At 40 Foremans Rd, Kangaroo Valley

  5 tonne – resident access only, closed to other traffic

Wattamolla Rd, Woodhill Mountain

 9 tonne, entire length

 24/7 load & traffic restriction enforcement in place

At 685 Upper Kangaroo River Road, Upper Kangaroo River

 9 tonne – resident access only, closed to other traffic

 24/7 load & traffic restriction enforcement in place

 Kangaroo Valley Road, Kangaroo Valley  12 tonne
 Abernethys Rd, Budgong  3 tonne
 Crozier Rd, Jaspers Brush  12 tonne

 

The imposed road load limits at various slip sites have been confirmed by Council’s geotechnical consultants by applying slope stability analysis. This considers vehicle loads, geology, soil conditions and road embankment slopes to derive a factor of safety against further embankment collapse.

Refer related documents for more information.

Vehicle Weight Limit Exemption Application

Council road management staff will consider requests for an exemption to a load limit at a landslip site, and this can be done by downloading and completing the SCC Application Form – Load Limit Exemption.

Any consideration of a temporary load limit exemption would be on a risk assessment of slope stability undertaken by Council’s geotechnical consultant.

Allow at least 10 business days to have this application considered.

Road Closures - Trigger Action Response Plan (TARP)

This TARP assists us to manage existing and historical land slip sites based on predicted rainfall events. 

Roads currently affected with load limits imposed due to landslips can deteriorate and slip further due to further heavy rainfall. Council has trigger points when deciding to close a road to all traffic for safety reasons:

Predicted rainfall in

24-hour period

Council Action

 Less than 50mm

 

  •  Manage road as if under “Dry Conditions” with daily inspections.
  • Should new tension cracks or edge slumps appear, or increase, the road will be closed at the landslip site and reopened pending engineering advice.
 Between 50mm and 100mm
  • Continue to manage road as if under “Dry Conditions” with increased frequency of inspections.
  • If new tension cracks or edge slumps appear, or increase, the road will be closed at the landslip site and reopened pending engineering advice.
 Above 100mm
  • CLOSE ROAD (just before rain commences)
  • Inspection to occur only when rain has stopped.
  • The road is only re-opened after surface water has dissipated and no further rain is imminent.
  • If new tension cracks or edge slumps appear, or increase, the road will remain closed and only be reopened pending engineering advice.

 

The nature of the landslip hazard is such that in most cases it is not possible to give notice of a road closure before a road closure is implemented. Council understands the impact that a road closure can have on residents and the Community and only implement such measures in the face of imminent hazardous conditions 

Storm and Flood Customer Care Service

supporting image

If you have been affected by the March or July 2022 severe storms and floods, there are a range of assistance measures that may be available to support you.