This commission seeks to engage a competent and experienced

Wind Testing Laboratory to undertake and report on a regime of

Wind Tunnel Tests of a cable stayed bridge and rolling bascule

opening span. The laboratory will be required to carry out wind

climate analysis and several wind tunnel tests of the deck and the

tower to assess the aerodynamic behaviour of the structure, such

as sectional model tests and assessment of wind shielding

efficiency. The laboratory is required to issue a report on the results.