Isaac Regional Council (IRC) engaged VEC to construct a new 3 span 77m long bridge across Cherwell Creek, located on the Peak Downs Mine Road, South of Moranbah. This road and old bridge was travelled by some of the heaviest traffic in Queensland due to the large coal mines in the area. The old bridge was located across Cherwell Creek and was low lying. In 2017 during construction, the old bridge over-topped twice in March and May respectively. This caused delays to traffic for up to two days with an alternative route adding another three hours to the journey.
The new bridge consisted of 750 diameter bored piers founded into bedrock some 18 to 20m below the creek bed. The pile caps, abutments and pier walls were reinforced concrete, cast insitu which required significant scaffold systems to support the walls and headstocks. The deck consisted of 51 Main Roads standard prestressed deck units, with a topping slab securing the precast units. Asphalt deck wearing surface was placed over the deck slab and a regular performance bridge barrier formed the edge protection. The bridge approaches included approximately 1km of roadworks on a new alignment parallel to the existing bridge. The road works included in areas some subgrade replacement, cut and fill and pavement design consisting of MR Type 2.5, 2.3 and 2.1 road base.