Members of the Scottish Parliament are calling on civil engineers to help explain the high cost of building the 2.6km long Forth Replacement Bridge.
The parliament’s Information Centre has employed consultant Biggar Economics to seek views from industry experts to determine why the project is to forecast to cost £2.04bn when the actual bridge is expected to cost just £543M.
Transport Scotland’s breakdown of project costs includes £543M for the bridge, £229M for approach roads and the improvement of the M9, £11M in IT systems and £138M in client costs. This brings overall construction costs to £898M. But inclusion of risk, optimism bias, VAT, debt and inflation takes the price to £2.04bn.
The consultancy wants to understand how the Forth’s unique overlapping cable design with three piers may affect costs, along with the unpredictability of the weather and the deepness of the water in the Forth Estuary.
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