Full closure on Galston Road between Calderwood Road at Galston and Montview Parade at Hornsby Heights for is schedule to commence for five weeks from 11 January.
Transport for NSW have advised that this closure is necessary to carry out essential road maintenance, including rehabilitation of the heritage-listed Galston Timber Bridge over Tunks Creek and the remediation of three slope sites at this location.
The full closure of Galston Road at Galston Gorge will be in place from 8pm on Sunday 11 January until 8am on Saturday 14 February, weather permitting.
Motrists will follow a detour route that includes Galston Road, Old Northern Road, New Line Road, Boundary Road, Pennant Hills Road and Pacific Highway.
An additional 30 minutes of travel time should be allowed by motorists.
Transport for NSW closed Galston Road on Monday, 28 February 2022, after heavy rainfall caused landslides that deposited large boulders, soil and trees onto the road.
The unprecedented amount of rainfall led to eight slippage sites along Galston Road between Hornsby Heights and Galston.
The road was again closed between July and October 2022 and diversions were put in place to carry out critical work to rehabilitate and stabilise a number of slippage sites.
Crews removed 60 tonnes of sandstone and 340 tonnes of soil while stabilisation work included installation of 83 rock bolts, 16 horizontal drains, concrete block retaining walls and shotcrete to stabilise rock faces.
Upcoming work will involve replacing the heritage bridge’s timber decking and removing temporary bracing structure.
Slope work will involve removing vegetation and loose rocks, installing bolts to stabilise slopes and protect the road, and installing drains at the base of the embankment alongside the road.
Key Takeaways: Galston Gorge Closure
- Closure Dates: 8pm Sunday, 11 January to 8am Saturday, 14 February (weather permitting).
- The Detour: Traffic will be diverted via Old Northern Rd, New Line Rd, Boundary Rd, Pennant Hills Rd, and the Pacific Hwy.
- Travel Time: Motorists should allow an additional 30 minutes for their journey.
- Scope of Work: Rehabilitation of the heritage timber bridge and remediation of three unstable slope sites.
