The 1.2km long deck of the Upper Forth Crossing has started edging its way out across the water at Kincardine. This week joint venture contractor Morgan Vinci started the third launch of the deck, taking the structure over the river.
Each launch moves the 35,000t deck a distance of 45m and takes two weeks. The contractor will complete 29 launches and it will be 15 months before the bridge spans the full 1km width of the Forth.
The incrementally launched, precast deck construction method was selected by the client, Transport Scotland, and its scheme designer Jacobs to reduce environmental impact, and was refined by Morgan Vinci's engineer Benaim. The contractor is working from a combined casting and launch yard on the north side of the river.
The £120M Upper Forth Crossing project is the largest construction scheme on site in Scotland. Morgan Vinci started work in June 2006 and is due to complete the 6km road and bridge contract in 2008.