The project featured two new bridges – The first being a 350m long, 12 span concrete bridge structure across the Hunter River. The structure involved 28m deep bored piles, up to 14m high square columns and 32m long precast prestressed super-T girders. The deck consists of structural concrete overlain by an asphalt wearing course.
The second bridge was a 47m long three span bridge across the Main Northern Rail Lines. The structure consisted of 30m deep bored piles, pile cap, blade wall columns and precast prestressed super-T girders.
The earthworks component of the project involved approximately 5.5km of two lane single carriageway roadworks constructed under local traffic conditions. The 11m wide formation was constructed using a combination of site won alluvial soils and 150,000m3 of imported gravels from Daracon’s Stockrington Quarry. The pavement consisted of a free draining granular select material overlaid by a heavily bound gravel base with materials supplied from Daracon’s Martins Creek Quarry.
The wearing course was constructed from a 45mm heavy duty asphalt and where the new formation travelled on top of the Hunter River levee banks a bitumen/aggregate seal was utilised.