Design & Construction of Embankment Restoration - Urliup Road
Location
Urliup NSW 2484
Client
Tweed Shire Council
Head Contractor
Hazell Bros (QLD) Pty Ltd
Type of works
Flood mitigation
Overall Project Value
$5M
Status
Completed (Nov 2023 - Jun 2024)
This project involved the design and construction of embankment stabilisation across six sites along Urliup Road in the Tweed Shire Council Local Government Area.
The work included:
Stabilisation using gabion baskets and soil nails at three sites.
Installation of soil nails, rock anchors, tecco mesh, and hydro mulch at one site.
Stabilisation using soil nails and shotcrete at two sites.
Scope of Works:
The completed works included:
Active involvement in the design process to ensure a “fit for purpose” approach that prioritised construction safety and efficiency.
Selective flora and fauna clearing, use of floating silt curtains for waterway protection, and coir logs and silt fences at steep downslope embankments.
Implementation of temporary traffic guidance schemes (TGS) with controlled road closures from 9:00 am to 3:00 pm, signage, and traffic control on a narrow and winding road.
Proactive communication with stakeholders about road closures, prioritising access for residents, and fostering positive community relationships.
Road widening and the creation of vehicle passing bays to facilitate construction.
Anchor Installation:
Static anchors: 46 x 3m to secure drill wagons and rope-access personnel.
Temporary anchors: 48 x 3m (30/11 bar), predrilled, grouted, and installed to stabilise vertical cuts in staged 1m increments, with geofabric and SL81 mesh applied after each stage.
Rock anchors: 40 x 3m (30/11 bar), predrilled into 100mm holes, grouted, and tested.
Soil nails: 158 x 6m (30/11 bar), predrilled into 100mm holes, grouted, and tested.
Construction of three gabion walls, varying in height from 2.0m to 4.5m, using 120cm gabion rock carefully hand-placed in gabion baskets and reno mattresses.
Reinstatement of drainage structures, kerbs, pavements, and asphalt adjacent to embankment remediation structures.
Brad Turner, Project Manager at Tweed Shire Council, commended the Hazell Bros team, stating:
"It has been great to work with the team on this project and see their commitment to accommodating the local community."