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Sea Link- Targeted Marine Surveys

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Description

The general requirement is for targeted marine surveys of 5 specific areas (see map) between Aldeburgh (East Suffolk) and Pegwell Bay (Kent), to supplement a survey of the whole route undertaken in 2021, to inform of seabed morphology and shallow sediment structure, and to provide benthic characterisation and habitat maps. The PQQ process is to establish market capability to carry out the required works within the time period indicated. It is the Client's intent to follow up the PQQ responses with a tendering process with a view to award a Marine Seabed Survey contract based on a detailed RFP process. The survey scope of work covers geophysical, geotechnical and environmental sampling. In addition to the 5 survey areas, the scope of work may potentially include an additional offshoot survey of the main route in the near future. Lot 1: equirements for the scope are listed below: > Obtain accurate Bathymetric (Inc. MBES/SBES) data; > Obtain accurate high-resolution Side Scan Sonar (SSS) data; > Obtain accurate high resolution Sub-Bottom Profiler (SBP) data; > Obtain high quality Magnetometer data; > Obtain high quality Benthic Grab Samples; > Obtain high quality soil samples; > Obtain high quality CPT/VC results; > Obtain high quality lab testing results of soil samples; > Data analysis and production of full and detailed Survey Reports in accordance with the Technical Specification of the survey - to be issued at RFP stage; > Produce a conformant GIS deliverable package in accordance with the Technical Specification of the survey. The maximum water depth of the geophysical survey area is 40m LAT and the maximum of the geotechnical survey is 50m LAT Requirements for the scope are listed below: > Obtain accurate Bathymetric (Inc. MBES/SBES) data; > Obtain accurate high-resolution Side Scan Sonar (SSS) data; > Obtain accurate high resolution Sub-Bottom Profiler (SBP) data; > Obtain high quality Magnetometer data; > Obtain high quality Benthic Grab Samples; Page 5 to 7 > Obtain high quality soil samples; > Obtain high quality CPT/VC results; > Obtain high quality lab testing results of soil samples; > Data analysis and production of full and detailed Survey Reports in accordance with the Technical Specification of the survey - to be issued at RFP stage; > Produce a conformant GIS deliverable package in accordance with the Technical Specification of the survey. The maximum water depth of the geophysical survey area is 40m LAT and the maximum of the geotechnical survey is 50m LAT. Lot 1: equirements for the scope are listed below: > Obtain accurate Bathymetric (Inc. MBES/SBES) data; > Obtain accurate high-resolution Side Scan Sonar (SSS) data; > Obtain accurate high resolution Sub-Bottom Profiler (SBP) data; > Obtain high quality Magnetometer data; > Obtain high quality Benthic Grab Samples; > Obtain high quality soil samples; > Obtain high quality CPT/VC results; > Obtain high quality lab testing results of soil samples; > Data analysis and production of full and detailed Survey Reports in accordance with the Technical Specification of the survey - to be issued at RFP stage; > Produce a conformant GIS deliverable package in accordance with the Technical Specification of the survey. The maximum water depth of the geophysical survey area is 40m LAT and the maximum of the geotechnical survey is 50m LAT Requirements for the scope are listed below: > Obtain accurate Bathymetric (Inc. MBES/SBES) data; > Obtain accurate high-resolution Side Scan Sonar (SSS) data; > Obtain accurate high resolution Sub-Bottom Profiler (SBP) data; > Obtain high quality Magnetometer data; > Obtain high quality Benthic Grab Samples; Page 5 to 7 > Obtain high quality soil samples; > Obtain high quality CPT/VC results; > Obtain high quality lab testing results of soil samples; > Data analysis and production of full and detailed Survey Reports in accordance with the Technical Specification of the survey - to be issued at RFP stage; > Produce a conformant GIS deliverable package in accordance with the Technical Specification of the survey. The maximum water depth of the geophysical survey area is 40m LAT and the maximum of the geotechnical survey is 50m LAT.

Timeline

Publish date

2 years ago

Close date

2 years ago

Buyer information

National Grid Electricity Transmission plc

Contact:
Rebecca Pearson
Email:
rebecca.pearson@nationalgrid.com

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