Work No. 1 – shown on sheets 1, 2 and 3 of the works plans and being the construction of a twin bore highway tunnel for a length of 1,440 metres from a portal on the Greenwich peninsula in the Royal Borough of Greenwich, and passing beneath the river Thames, to a portal in Silvertown in the London Borough of Newham, to include—
(a)the construction of a section of cut and cover tunnel, between its portal on the Greenwich peninsula (the South Portal) and the tunnel-boring machine launch chamber located on the Greenwich peninsula, and comprising either a cellular tunnel or two tunnels, one for northbound traffic and one for southbound traffic with two-lane carriageways in each direction, and including the south portal and cross-passages connecting the two tunnels;
(b)the construction of a section of bored tunnel, comprising two tunnels, one for northbound traffic and one for southbound traffic, with two-lane carriageways in each direction, between the tunnel-boring machine launch chamber located in Silvertown and the tunnel-boring machine launch chamber located on the Greenwich peninsula, including cross-passages connecting the two tunnels;
(c)the construction of a section of cut and cover tunnel between its portal in Silvertown (the North Portal) and the tunnel-boring machine launch chamber located in Silvertown, and comprising either a single cellular tunnel or two tunnels, one for northbound traffic and one for southbound traffic with two-lane carriageways in each direction, and including the north portal and cross-passages connecting the two tunnels;
(d)the construction of an anti-recirculation wall at the South Portal;
(e)the construction of two tunnel-boring machine launch chambers, one in the London Borough of Newham (Silvertown) and one in the Royal Borough of Greenwich (Greenwich peninsula); and
(f)the construction (and subsequent removal on completion of construction of the authorised development) of a temporary decked car park situated on land lying between West Parkside and Millennium Way, and being required in consequence of the construction of Work Nos. 1 (a) and (d) (Greenwich peninsula) to provide replacement car parking facilities for the O2 Arena during construction of the authorised development.