The Warburton Highway between Mayers Bridge and Hooks Road will be fully closed from 26 April to 10 May for landslip repairs.
It will return to the current one-lane arrangement with traffic lights on 11 May with works expected to be fully completed by 31 May if weather conditions are favourable throughout the works.
During the full closure, only local traffic up to Hooks Road will be permitted, with light vehicles detouring on Old Warburton Road.
There are two options for large vehicles up to 12.5m long to detour:
Using unsealed forest roads by turning onto Blacksands Road in Gladysdale up to Smythe Creek Road in East Warburton and using Burns Road and Big Pats Creek Road to come out on Riverside Drive in Warburton (traffic controllers will be stationed and patrolling along this route),
Taking the sealed roads up Maroonday Highway past Healesville through the Black Spur up to Marysville Road, then onto Marysville-Woods Point Road and then Woods Point Road into Warburton.
The works on the landslip on the Warburton Highway will include installing a retaining wall to improve the integrity of the highway while it is excavated to a depth of 3m to remove unstable soil and rebuild the highway. Barriers will also be installed to help excavation vehicles pass the site and the road shoulder will be temporarily widened by about a metre to create more space for vehicle, machinery and lights.
