Woodburn-Coraki Road – Thearles Canal Culvert Upgrade

The scope of the project is:

• Construct and install a duplicate box culvert 2700 x 2100, 10.6m in length at a depth of 1800mm next to the existing Thearles Canal culvert on Woodburn-Coraki Road (MR145).

• Remove existing guardrail and install new guard rail to both sides of the road edge.

• There is to be 500mm of separation between the exiting culvert and new culvert.

• No fines concrete to be used between the existing and new culvert.

• Works to be conducted in two halves to allow one lane to always remain open with the lane width being a minimum of 3m.

• Traffic control is to be organised and maintained by the contractor.

• Minor road shoulder repair may be required to make the single lane trafficable.

• 3.22m sheet piling is required and a protection barrier while works are being constructed to maintain lane opening.

• Supply and install scour protection to the inlet and outlet sections.

• Reinstatement of road surface (as per Regional Geotechnical Solutions pavement design Ref: RGS01626.3-AB dated 13/08/2020)

Please note:

Council will be purchasing the box culverts; these will be stored at Dairy Flat works compound of Woodburn Coraki Road.

Delivery December 2023.