CEFAS23-13 Contract for a Multibeam Bathymetric Survey within Sizewell Bay, Suffolk

The BEEMS (British Energy Estuarine and Marine Studies) programme is funded by NNB GenCo (EDF Energy). Through this programme, Cefas provide authoritative scientific information on the marine and transitional waters in the vicinity of potential new build nuclear power stations and require a competent Supplier to deliver the following;

Cefas require two shallow water multibeam bathymetric surveys to IHO Special Order (at a minimum) within the Greater Sizewell Bay (GSB). Both surveys will take place over the spring tide windows (4 days approximately), with one in April-May 2023 (the 'Spring Survey') and the second survey in September-October 2023 (the 'Autumn Survey'). Both surveys will require nearshore transects to assess geomorphological changes of two longshore bars, alongside a combination of offshore Areas of Interest (AOI). Backscatter will be required to be processed and delivered for all areas within both surveys.