Main Arm Valley Flood Restoration Works

Announcement

Landslip repair works near 1650 Main Arm Road will commence from Monday 13 October 2025 (postponed from Tuesday 7 October).

The road will be reduced to one lane.

Signage will be in place to provide up-to-date information.

Project typeEssential Public Asset Restoration (EPAR)
Project value$12,457,018
Project scheduleDecember 2024 to Late 2026

We are repairing damage to roads and infrastructure in Main Arm caused by the 2022 floods.

In the Main Arm area, works include repairing:

roads, landslides and causeways
clearing debris
reconstructing culverts.

Current On Ground Works

Landslip repair works
Landslip repair works near 1650 Main Arm Road are scheduled to begin on Monday 13 October 2025. These works aim to stabilise the slope and prevent further erosion. The contract has been awarded to Ireland Civil.

To safely carry out the works, the road will be reduced to one lane. The road will remain open to traffic, although short delays may occur due to traffic control measures in place at the site.

The works are programmed to be completed by December 2025.

Causeway works
Causeway debris clean outs have been completed at the following Causeways – Numbers 3, 4, 6, 9, 10 and 11. Vegetation and sediment were removed to ensure these causeways are clean and unobstructed.

Road and landslip repairs

Location	Description of work	Status
Between Dry Creek Road and Motts Road	Road, drainage and maintenance work.	Completed
Between Main Arm Upper Public School and Motts Road (Upper Main Arm)	Road pavement repairs	Site investigation and planning
Dry Creek Road landslip (near 58 Dry Creek Road)	Install cut-off drainage, stabilise embankment, and construct new realigned pavement formation.	Site investigation and planning
Main Arm Road landslip (near 1650 Main Arm Road)	Construct a gravity retaining wall.	Construction commencing 13 October 2025
Main Arm Road between causeway 14 & 15	Repair failed section of concrete road and shoulder drainage	Construction in mid 2026

Causeways, bridges and culverts

We are currently doing site investigations and planning for the following works. Details of expected construction is provided in the table.

The table provides a description of works by location. Use the numbered markers on the maps below to view these locations.

For example, if you see "Main Arm Rd 5" on the map, you can look at the table to find out what repairs are planned there.

Location	Description of work	Current status and construction
Palmwoods Road Causeway 1, 2 & 4	Upgrade to a suitable low-level causeway or bridge	Construction in 2026
Main Arm Road Causeway 3 & 4	Debris cleanup and repair works	Completed
Main Arm Road Causeway 5	Upgrade to a suitable box culvert	Construction in 2026
Main Arm Road Causeway 8	Debris cleanup and repair works	Construction mid to late 2025
Main Arm Road Causeway 13	Upgrade to a suitable low-level bridge	Construction in 2026
Main Arm Road Causeway 16 & 17	Rebuild as a box culvert	Construction in 2026
Main Arm Road Culvert (near 1363 Main Arm Road) Coolamon Creek	Reconstruct drainage structure with box culvert	Construction in 2026
Main Arm Road Culvert (near 1305 Main Arm Road)	Reconstruct culvert to functional finished level	Completed