Harbour Authority

The Sizewell C (Nuclear Generating Station) Order 2022, requires Sizewell C Limited to first establish, and subsequently act as, the legal regulator and operator of the Sizewell C Harbour Authority.

Our primary responsibilities relate to the safety of vessels and people, efficient navigation within the harbour and the protection of the harbour estate environment and infrastructure. Specifically, our requirements are to:

• Comply with the Port Marine Safety Code (PMSC);
• Ensure safe and efficient port marine operations that help to maintain safety of navigation;
• Conserve the harbour so that it is fit for use, including providing users with adequate information about conditions in the harbour;
• Act as a Local Lighthouse Authority (LLA) and to provide and maintain Aids to Navigation ;
• Report various activities and or incidents to regulators such as the Marine Management Organisation (MMO), Trinity House (General
  Lighthouse Authority), United Kingdom Hydrographic Office (UKHO) and the Maritime & Coastguard Agency (MCA).

Marine Works Applications

If you propose any new works within the harbour area, you will need to first get approval from the Harbour Master. There is a four-to-eight-week timeframe for approvals depending on the nature of the works proposal.

Email: harbour.master@sizewellc.com for further advice.

Marine Safety Plan 2024-2025

SZC Harbour Authority has committed to comply with the requirements of the Port Marine Safety Code (PMSC), which includes the publication of a Marine Safety Plan. This marine safety plan is one component of a comprehensive Marine Safety Management System and serves to support the continuing improvement of all aspects of SZC marine safety performance, and ongoing compliance with the PMSC.

The plan is intended to cover a rolling three-year period but will be refreshed and checked for continuing relevance on an more frequent basis.

Harbour Limits

The Statutory Harbour limits extends to an area approximately 2.2 nautical miles off the Suffolk Coastline adjacent to the Sizewell C Site.

The limits of the harbour area are bounded by an imaginary line commencing at the shore north of the authorised development at 52°14’0’’, 1° 37’ 37’’, then extending in a straight line to a point at 52°14’0’’, 1° 41’ 0’’, then extending in a straight line to a point at 52° 12’ 0’’, 1° 41’ 0’’, then extending in a straight line due west to the coast to a point at 52° 12’ 0’’, 1° 37’ 20.8, then following the level of Highest Astronomical Tide (HAT) to the point at 52°14’0’’, 1° 37’ 37’’.

Chart 1543 shows the extent of the Sizewell C Harbour Authority area.