The M25 J30/ A13 Corridor Congestion Relieving Scheme is a proposal aimed at improving highway infrastructure to relieve existing congestion and enhance access to wider UK markets for the Thurrock area and the users of the Ports of Tilbury and London Gateway and users in the Thames Gateway area. The overall objectives of the scheme are to reduce congestion, improve journey time and journey time reliability and to improve safety and accessibility on the M25 junction 30 / A13 corridor, by improving the operation of the trunk road and junction, whilst having due regard for the environmental sensitivity of the area. The project intends to achieve this by widening the A13 between Wennington and the A126 junction, improve interaction between the M25 J30 and the A13 through alterations to the junction, including additional lanes, improved sign-age and enhance signalling. We envisage that we will procure this under an NEC3/ ECC Works contract on a Design and Build Contract approach (The main Option will be specified in the Tender Documents).