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Flood Restoration - Roads & Bridges Update (Sept 2023)
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Please note, several road and bridge projects progressing concurrently, below are updates for some projects progressing this month. Please check the 'Projects By Name' and select the road name for latest updates. Additionally, if there is a road you would like specific flood restoration updates on, please register your contact details via our notification list form.
COMPLETED WORKS
Bungabbee Road
Recently the Bungabbee Road bridge approaches works were completed to repair damages from the 2022 natural disaster. The works involved re-construction of the damaged approaches and re-instatement of guard rails, drainage, and scour protection around abutments.
Dudgeon Road BridgeWorks were scheduled and completed last month to repair the flood damaged Bungabbee Road bridge approaches. The works involved re-construction of the damaged approaches and re-instatement of guard rails, drainage, and scour protection around abutments.
Major Flood Recovery Works Map
Our interactive map recently underwent upgrades to improve user experience and include other flood recovery departments. Water and wastewater along with Flood Restoration Building projects have now been implemented into the map and in the coming month the flood restoration buildings will all be included. The map assists the community with finding efficient, up-to-date information about restoration works.
CURRENT WORKS
Nimbin Road
Works are continuing for the Nimbin Road landslips. Site Km1, located 1 Km from Nimbin has all the concrete works and piling complete with the installation of block wall in progress. This site is on schedule for the road to be fully open before Christmas. Site Km4, located 4 Km’s from Nimbin is currently undergoing construction of gabion walls, these are used for scour protection, which prevents soil from being washed away and helps strengthen the road. The site also has piling in progress with approximately 30% completed.
Keerrong Road
Works have commenced on Keerrong Road for excavation of slipped material and reconstruction of the road embankment. The works are scheduled for approximately 3 weeks, subject to weather, contractor, and material availability. A full road closure will be required around the works zone throughout the works period. A detour is available via Pinchin Road, motorists will be notified ahead of the closure via roadside signage, updated through www.livetraffic.com. Residents will have access to their properties via Pinchin Road and The Channon Road but will be unable to drive through the landslip work zone. Please adhere to all road closed signs and directions from any traffic controllers.
Geotechnical Investigations
The Lismore City Council (LCC), Flood Recovery – Roads and Bridges team recently secured interim funding for additional geotechnical investigations and survey to commence on several flood affected roads. Initial investigations took place in 2022 to inform the designers about the geological conditions and failure mechanism. This information was used to apply for funding to repair. Additional investigations are now required to inform the final design.
Geotechnical drilling is a type of drilling that is performed as part of the construction process to assist with better understanding a site. Investigations involve collecting rock and soil samples to obtain data regarding surface and subsurface examination. These samples provide valuable insights into the physical properties of the site, enabling engineers to design and construct remediation works to deliver roads that are safer and more durable.
Roads approved for investigations include Bice Road, Bishops Creek Road, Black Road, Blue Knob Road, Boyle Road, Cawongla Road, Cosy Camp Road, Cross Road, Gungas Road, Johnston Road, Koonorigan Road, Lillian Rock, Martin Road, Mountain Top Road, Oakey Creek Road, Orion Street, Rock Valley Road, Skyline Road, Stanger Road, Stony Chute Road, Terania Creek Road, The Channon Road, Tuntable Creek Road, Upper Tuntable Falls Road, Wallace Road, Whian Whian Road, Yeager Road and Zouch Road.
Cawongla Road
Significant changes to the traffic control measures at the Cawongla Road Landslide site, near Martin Road, were recently implemented. It was identified that the site was deemed unsafe due to technical issues with the traffic lights, including repeated battery charge depletion, and concerns about safety. Therefore, the traffic lights previously regulating traffic flow have been replaced with a “Give Way” sign and a “Stop” sign. This decision was prompted by multiple incidents of road users running the red lights, posing a serious safety hazard. The new signage system aims to simplify traffic management while mitigating potential hazards. All signage has been installed as per the amended traffic guidance scheme, and a comprehensive risk assessment was conducted before implementing these changes to ensure the safety of all individuals travelling through the site.
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Flood Restoration - Roads & Bridges Update (June 2023)
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Please note, several road and bridge projects progressing concurrently, below are updates for some projects progressing this month. Please check the 'Projects By Name' and select the road name for latest updates. Additionally, if there is a road you would like specific flood restoration updates on, please register your contact details via our notification list form.
CURRENT WORKS
Nimbin Road
Council has commenced roadworks on two landslip sites on Nimbin Road that have been identified as significantly impacted by the February 2022 natural disaster. Funding was secured through the Disaster Recovery Funding Arrangement (DRFA). This funding is allocated to repair damage sustained during the February 2022 natural disaster only. Works have already commenced at both sites, with Site 1 is approximately 1 km from Nimbin and Site 2 is approximately 4 kms from Nimbin. During the past month, both sites have undergone site establishment, installation of steel barriers and traffic lights, establishment of safety and environmental control, tree cutting along the entire embankment slope, removal of road materials including asphalt, and preliminary excavation ready for drilling operations.
The activities scheduled during the next month for both sites include completion of preliminary excavation, completion of working platform for drilling operation, excavation of working benches (a series of horizontal steps with near-vertical surfaces between them), completion of piling operation and construction of rock embankment at site 2. The works are expected to occur over 9 months from mid-May 2023 subject to weather, contractor, and material availability. This will involve piling and retaining wall construction works to allow repair of the landslips, reconstruction of pavement, reinstatement of road and guardrail barriers along with installing signs, guideposts, and line marking. Traffic control lights remain in place and existing single lane traffic control will remain in place during the works period. Council would like to thank the residents of the region for their patience during this time.
Town Road
Funding was awarded by the NSW Government through its Fixing Country Bridges program to replace the damaged structure at Town Road, Terania Creek with a new steel superstructure bridge. Piling works are well underway installing the four 1.2m diameter x 13.5m deep bored concrete piles. The first pile has been drilled to depth and its concrete placed with the second and third pile to be completed at the beginning of July. The upcoming weather system will likely delay the installation of the fourth and final pile. Following completion of the piling activities, works will commence on forming up the abutments. The steel bridge structure has also recently been dispatched from France and is currently on route and is expected in the Port of Brisbane in approximately 45 days.
Whian Whian Road – Simes Bridge (Vandalism)
We want to thank the local residents who use Whian Whian Road for their patience with what is a difficult process to repair Simes Bridge. Unfortunately, late Friday night (23rd June), the traffic barriers used to reduce the bridge to one lane were thrown over the edge and into the creek below. Simes Bridge suffered damage last year from massive weather events and shortly afterwards was inspected and assessed by independent engineers. The bridge is able to remain open to a single lane of traffic only. Single-lane access reduces the load impacting the bridge and avoids a closure to Whian Whian Road at this point. Traffic barriers are required to manage single-lane access. Criminal activity can be reported to the Police. Council has a call centre for reporting damages to community property; please phone 0266 250 500 or email council@lismore.nsw.gov.au
Tuntable Creek Road
We would like to thank the Tuntable Creek community for the wonderful feedback we have received about our new SMS Broadcast system.
In the event of rainfall exceeding our trigger level or other significant changes, the temporary track will be closed again at short notice. We apologise for the disruption this causes and delays in travelling alternative routes. To reduce the inconvenience, the Flood Recovery – Roads and Bridges team were granted access to an SMS Broadcast service to generate a contact list for Tuntable Creek Road emergency road shutdowns. Residents can join this broadcast list, through emailing floodrecoveryroadsbridges@lismore.nsw.gov.au your name, mobile number, and permission to contact via SMS.
FUTURE WORKS
Dudgeon Road & Bungabbee Road – Bridge Approaches
Works are due to commence in the next two weeks on the reinstatement of Dudgeon Bridge approaches on Dudgeon Road. These works will involve removal and reinstatement of the flood damaged bridge approaches which will include an asphalt wearing surface. Following completion of Dudgeon Bridge, works will then commence on Bungabbee Bridge approaches. Both projects will take approximately two weeks each to complete.
Branch Creek Crossing, Terania Creek Road
Following the 2022 natural disaster Terania Creek Road suffered extensive damage. Due to the nature and high number of damages incurred, works are being finalised on how best to provide timely improvements for the community and road users. The current structure at Branch Creek has received funding from the Disaster Recovery Funding Arrangements (DRFA) for replacement of the flood damaged asset. Works will include replacing the current box culvert structure with a 16m bridge and extending erosion protection to the edge of the road. The funding application for other damages on Terania Creek Road are currently being assessed. Survey and design work commenced in June 2023 for the replacement structure and works will commence in 2024.
