The Mersey Gateway Public Inquiry took place in Halton during May and June 2009.
It considered a total of seven planning applications and legal orders that were submitted or made to allow the project to proceed.
The independent planning inspector Alan T. Gray heard supporting evidence from environmental, traffic modeling and design experts, private sector partners, neighbouring local authorities, local MPs and a wide range of other organisations.
It also heard the views of a number of individuals and groups who opposed elements of the project such as tolling, the access route and its perceived environmental impact.
You can access all of the Mersey Gateway Project Public Inquiry evidence and documentation online at the official public inquiry website.