Flood Restoration - Roads & Bridges

Pinchin Road is scheduled to undergo pavement repairs on some sections of severely damaged areas from Monday 29th August 2022.

Initially the works will start with drainage remediation to allow water to drain from the pavement. Following these works there will be a pavement stabilisation crew mobilising to site to stabilise the existing pavement. As well as adding an additional 100mm of new road base material to improve the pavements strength.

This work is a large roads maintenance activity and will take approximately 5 weeks to complete (weather permitting).

A single lane traffic closure will allow traffic to travel through the worksite. Signage will be in place to notify road users, and updates available on Live Traffic NSW. Works on Keerrong Road will be postponed from September 1st, to allow additional traffic flow while Pinchin Road works are completed.

Following the February 28 and March 2022 flooding events, a road embankment landslip and tension cracking have occurred on Johnston Road, approximately 1km from Bangalow Road.

There is currently an interim road closure in place, allowing local access only. Geotechnical borehole drilling and the installation of inclinometers and piezometers will commence from Monday 22^nd of August for one week (subject to weather and ground conditions). For the safety of motorists, a full road closure at the slip location will be in place for the duration of these works , with access granted to the properties located within the road closure only. To ensure your travels are not delayed, please review the road closure location to determine whether accessing from Eltham Road or Bangalow Road is most appropriate for your property.

Minor surface grade repairs, shoulder works and signposting for longer term traffic arrangements will also take place during this time. On completion of these works, the road will be reopened to one lane of traffic under a give-way arrangement at the slip locations. This arrangement will remain in place for several months until full remediation work commences.

A detailed site survey will be needed to get a full understanding of the landslips impact to the surrounding area, and to undertake the detailed design of the restoration. The survey will take approximately 2 days and will be completed after the geotechnical investigations, dates TBC. The survey will involve a combination of traditional (on foot) and drone survey, as per the extent in the following image. During the survey you may see surveyors working on the side of the road, or a drone flying overhead.

On-going monitoring of the inclinometers and piezometers will be required for a few months following the installation (timeframe will be confirmed from the data recorded). This on-going monitoring will ensure the slips behaviour / displacement is fully understood and the design of the remediation is robust and fit-for purpose. The on-going monitoring will involve a geotechnical engineer re-visiting the instruments once per week and taking readings by hand for approximately 30 minutes at each location. The instruments will be located within the shoulders of the road to enable the readings to take place with no impact to traffic. The approximate locations of the instruments are shown below.

The geotechnical investigations and survey will determine the detailed design and cost of the repair, which will be included in an application for funding to complete this work. Approval for funding is anticipated to be received by the end of August. Construction is planned to be commenced by the end of 2022, subject to approvals, contractor availability and weather.

Further updates will be shared via this page as works continue.

Additionally, to receive updates directly please contact Lismore City Council via email council@lismore.nsw.gov.au or call (02) 6625 0500 to register your details and feedback. Please reference ‘Johnston Road’ in your correspondence.

***Update Thursday 1 September, 2022***

South Skyline Road closure will be extended until Wednesday 7/9/2022 next week due to difficult drilling conditions. We are aiming to have the rig off the road, and the road opened up over the weekend.***

Following the February 28 and March 2022 events, Skyline Road has suffered damage due to a landslip, adjacent to 353 Skyline Road. Funding has now been secured to complete remediation works.

To undertake remediation, geotechnical drilling under engineer supervision is required. Instruments to monitor further ground movement and water table will be installed for monitoring, to assist designers and determine the scope of works.

Drilling is expected to commence this week. Motorists will be advised via roadside signage. A track is available each way allowing access past the slip. Please use caution and drive carefully.

Further updates, including commencement of construction for remediation at a later date will be shared via the News Feed tab of this page.

Additionally, to receive updates directly please contact Lismore City Council via email council@lismore.nsw.gov.au or call (02) 6625 0500 to register your details and feedback. Please reference ‘Skyline Road Landslip’ in your correspondence.

Council wishes to advise that bridge replacement works will start shortly on Sexton Bridge, located on Gundurimba Road, Monaltrie. These works are due to get underway during the week commencing 15 August 2022. The location of works is shown below.

What do the works involve?

The works will involve the temporary road closure of Gundurimba Road to enable the construction of a new concrete bridge.

Bridge construction works will include the following:

• Temporary closure of Gundurimba Road at the site (access to property available via detours, see below)
• Demolition of the existing timber bridge structure
• Initial earthworks in preparation for foundation works
• Installation of driven reinforced concrete piles
• Installation of concrete bridge abutments and beams
• Reinstatement of road pavement
• Signage and line marking.

When will the works start and what are the hours of work?

Works will start in the week commencing 15 August 2022. We expect the project will take about 12 weeks to complete, subject to suitable weather conditions and contractor availability.

Work hours:

• 7am to 6pm Monday to Friday
• 8am to 1pm on Saturdays
• No work Sundays or public holidays.

If there is a requirement to change these hours, updates will be available via the '

What are the traffic adjustments?

During this bridge replacement, traffic will be detoured as a result of the temporary road closure of Gundurimba Road. Traffic will be detoured via the following routes:

Northbound traffic:

• Via Monaltrie Road, Wyrallah Road and Bruxner Highway

Southbound traffic:

• Via Bruxner Highway, Wyrallah Road and Monaltrie Road

What do I need to do?

Please obey the temporary traffic conditions in place and allow additional time for travel.

We apologise in advance for disruptions you may experience whilst we replace Sexton Bridge. We would appreciate your cooperation with all temporary traffic control and workplace protection measures onsite to help keep everyone safe.

If you have further questions or concerns, please do not hesitate to contact Lismore City Council via council@lismore.nsw.gov.au, or call (02) 6625 0500

Gravel Roads (Flood Repair Works) – approximately 50% of LCC Gravel Roads have been repaired now since the Feb/March 2022 events.

Caniaba Road – Drainage and shoulder widening works progressing well. Project is currently running to plan with minimal delays.

Richmond Hill Road – the landslip has been repaired and pavement rehabilitation works are progressing.

Nimbin Road near Goolmangar School – urgent maintenance works were carried out last week, the damaged sealed pavement was returned to gravel. This section of road will be overlaid with new gravel and stabilised this month

Keerrong Road Bridge – the new concrete bridge is now complete and earthworks progressing on the approaches

Henson Bridge – Piling is now complete, works progressing well on preparing the bridge abutments (form/reo/poor)

Keerong Road – Landslip and drainage remediation works are commencing, leading to a road closure from August 10th - adjacent to 1265 Kerrong Road. Motorists are advised via roadside signage. Pavement strengthening works are also progressing on approximately a 1km section. Further pavement works are scheduled.

Bruxner Highway at Northcott Road – pavement rehabilitation works are progressing which have included stabilisation of the existing material and overlay with new gravel.

Gungas Road – shoulder widening and pavement works are progressing.

Cowlong Road – pavement strengthening works are progressing south of McKenzie Road.

Jiggi Road - flood restoration works to commence shortly, to improve overall road conditions. Further information has been mailed to local residents, and is available in 'Community Updates' tab.

Pinchin Road - flood restoration works to commence shortly, to improve overall road conditions. Further information has been mailed to local residents, and is available in 'Community Updates' tab.

One section of Jiggi Road, preconstruction on 04/08/22

Wyrallah Road - Geotechnical drilling to determine scope of works.

Drilling at Wyrallah Road 27/07/22

Dunoon Road (near the Macadamia Factory) - Temporary patching on a section of road adjacent Macadamia factory on Dunoon Road. This section of road is due for full pavement reconstruction in October this year.

a section of Dunoon Road before temporary patching 02/08/22