The Mersey Gateway Crossings Board Ltd (the Board) is a special purpose vehicle established by Halton Borough Council with the delegated authority to deliver the Mersey Gateway Bridge project and to administer and oversee the construction and maintenance of the new tolled crossings including the tolling of the existing Silver Jubilee Bridge. The Board’s terms of reference and delegated authority are expressed in a Governance Agreement with the Council, set to last for sixty years. The project construction costs are estimated at £600m with a total whole life cost of circa £2bn. Once operating, the Board will oversee a concession business with an annual turnover of circa £70m.