CEFAS24-28 ITT for BEEMS Bathymetric and Bank Surveys, Sizewell, Suffolk

Tender description

CEFAS24-28 ITT for BEEMS Bathymetric and Bank Surveys, Sizewell, Suffolk The BEEMS (British Energy Estuarine and Marine Studies) programme is funded by Sizewell C Limited. Through this programme, Cefas provide authoritative scientific information on the marine and transitional waters in the vicinity of potential new build nuclear power stations. The purpose of this project is to provide bathymetric data for the Greater Sizewell Bay to assess the geomorphological changes of the region and hence contribute to the ongoing monitoring of the Sizewell Coastline. Another objective of the survey is to obtain Sidescan Sonar alongside multibeam data to detect the presence of potential Sabellaria reef in the offshore infrastructure area. This area has previously been surveyed and shown to comprise outcropping Coralline Crag which supports Sabellaria formations, and as such the data should be of high enough quality to determine and detect potential reef areas. Cefas require two shallow water multibeam bathymetric surveys to IHO Special Order (at a minimum) within the Greater Sizewell Bay (GSB): 1. Full extent (offshore) bank Spring Survey (MBES) undertaken in the spring/summer months; with data collection in nearshore AOI (MBES) and an offshore infrastructure area (MBES and Sidescan Sonar) to be prioritised first 2. Nearshore Autumn survey (MBES only)