Springbrook Road  Springbrook Road is a heritage-listed road at Springbrook-Mudgeeraba Road, Springbrook, Gold Coast City, Queensland, Australia. It was built from 1925 to 1928. It is also known as Memorial Cairn, Springbrook-Mudgeeraba Road, and Toll Road. It is part of State Route 99. It was added to the Queensland Heritage Register on 22 October 1999. The road has been closed from Little Nerang Dam since Cyclone Debbie with repairs expected to be completed before 2019. The Springbrook-Mudgeeraba Road was constructed to encourage settlement and development in the Springbrook area in the mid 1920s. Several elements including two curved timber bridges, a water trough and a water fountain date from this early construction time. The difficulty of access to the Springbrook plateau was a significant factor in the delay of settlement. Prior to settlement in 1906, the only access consisted of a walking trail on the western side that ended up in the Numinbah Valley. Once land was advertised for selection, the Queensland Lands Department was required to provide a road. The early settlers knew that for their farms to succeed, reliable access was necessary. The determination to provide an alternate route off the mountain resulted in two tracks being brushed through the forest. One headed off the southern end of the plateau towards the village of Mudgeeraba. Jim Hardy and George Trapp blazed the Mudgeeraba track by following the ridge that separates the east and west branches of Little Nerang Creek. When they reached the confluence of the two creeks they turned east, only to find that the Nimmel Range blocked their way. By skirting round the flanks of Mount Nimmel, they managed to reach the dirt track that linked Mudgeeraba with the little cluster of farms near Neranwood. By 1914 the track was upgraded to allow horse-drawn wagons known as "buckboards" to negotiate the rough terrain. It coiled its way off the mountain down present-day Carrick Road and beyond to the meeting of the east of west branches of the Little Nerang Creek, over the Mount Nimmel Range and on through the Austinville Valley before joining the present road at the Austinville turn-off. The first Springbrook to Mudgeeraba road was an improvement on the brushed track. After several deputations in the 1920s to the Minister for Main Roads, it was decided to survey a new route onto the mountain. The gradient required for such an undertaking was of much concern to the surveyors.