Paragraph 4 Open quay structureI1

suspended deck structures comprised of a reinforced concrete deck supported by approximately 200 driven steel tubular piles in F1phase 1a, with an additional 200 piles required for phase 2, in the order of 0.9 metres diameter;

the area of the deck structure (quay) is to be no more than 28 metres wide by 280 metres long in F2phase 1a, increasing up to a total of 486 metres long in phase 2;

the quayside is to consist of engineering fill to create a trafficable surface adjacent to the quay, for the full length of the quay. The width of the quayside is to be between 43 metres and 53 metres;

2 access bridges are to be constructed during F3phase 1a, allowing one to be used for the construction of phase 2 whilst maintaining the other for operational access;

installation of a revetment on the re-graded slope, either to be placed on the re-graded slope prior to installation of piles, or placed following installation of the piles; and

replacement of the existing pipe through the embankment between the Tees estuary and the lagoon with 2 new pipes of larger capacity each incorporating independently operated flow control structures.