Notices to Mariners
Notices to mariners are issued for information purposes to aid safe navigation.
Latest notice:
16 May 2026
Mariners are advised that upwards of 100 swimmers will be in the water participating in a triathlon on the approach to Maldon between 11:45 and 13:30 on Saturday16 May 2026.
The race will start with swimmers entering the water off the left end of the Maldon Promenade extension (area by the Byrhtnoth Statue).
Two large orange buoys will be installed for the turning points some 360 metres from the extension heading approximately 150 degrees from the extension in line with Northey Road. Large triangular orange buoys (approx 100 metres apart) will mark the central line of the route; swimmers to aim and pass these buoys on their right shoulder in a straight line (out and in, once round) back to the extension.
The race area is inshore of the main Blackwater Channel and well short of Northey Road but craft venturing from or to Northey Road should stay clear.
Safety boats will be provided by Active Training World.
This Notice to River Users is self-cancelling on Sunday 17 May 2026.
Click here to download a copy of the notice with further details.
24 March 2026
2 March 2026: Hythe Quay Maldon.
Effective beginning March 2026.
Duration: 12 weeks.
The visitor pontoon is to be removed for essential maintenance at the beginning of March 2026 and will not be reinstalled until May 2026. No exact date can be given as the scale of the works to be undertaken will not be known until the pontoon has been assessed.
Dredging operations will commence during the latter part of March for a period of eight weeks, possibly longer subject to tide and weather conditions. Visiting vessels are asked to make alternative arrangements and not use Hythe Quay during this time.
A further Notice to Mariners may be issued if these works are likely to overrun.
Further information can be obtained by contacting river.bailiff@maldon.gov.uk.
Click here to download a copy of the notice with further details.
17 February 2026: North Falls Offshore Wind Farm.
Overview:
Mariners are advised that North Falls Offshore Wind Farm (NFOWF) will undertake a metocean survey within the Wind Turbine Array Area, at the Primary and Secondary locations shown in Table 1 and Figure 2.
Survey Duration:
Mobilisation will commence on or after 18 February 2026, with the metocean survey lasting between 12 and 18 months. The planned survey end date will be no later than 16 August 2027.
Survey Tasks:
The metocean survey work is being undertaken by Partrac, who will use the vessel CT Vector to deploy the metocean equipment at the Primary and Secondary locations listed below. It is expected that the deployment operation will last for one day.
The metocean equipment will consist of one seabed frame deployed at each location (i.e., a total of two seabed frames). Each seabed frame will be equipped with an acoustic Doppler current profiler (ADCP) and additional sensors (temperature sensor, water-level sensor, and turbidity sensor). Each seabed frame will be connected to a clump weight, with approximately 100 m leaded polypropylene ground line between the seabed frame and clump weight.
As a consequence of equipment being deployed, all mariners are advised to keep a safe clearance distance of no less than 500 m from the deployment vessel and metocean equipment deployment locations. No towed survey equipment will be deployed from the vessel.
Deployment Locations:
Primary (North).
- 51.7584° N
- 1.8944° E
- 51° 45.502' N
- 01° 53.661' E
Secondary (South).
- 51.6944° N
- 1.8769° E
- 51° 41.664' N
- 01° 52.615' E
Click here to download a copy of the notice with further details.
15 December 2025: Notice has been issued that Marine Licence L/2023/00221/1 has been granted to the National Trust to undertake placement of marine sediment as part of saltmarsh conservation management to the saltmarsh adjacent to the causeway of Northey Island.
The works areas defined under the Marine Licence are:
- 51°43.1829'N 00°42.4675'E
- 51°43.1122'N 00°42.5979'E
- 51°43.1367'N 00°42.6559'E
- 51°43.1815'N 00°42.6077'E
- 51°43.1912'N 00°42.6205'E
- 51°43.2005'N 00°42.6119'E
- 51°43.1829'N 00°42.4675'E
Vessels are advised to exercise caution and should avoid the above area for the duration and to allow safe access/egress of plant in connection with the works. Works may be undertaken at any time. The above works are due for completion by 1st April 2026. For further information contact: Maldon District Council River Bailiff on 01621 875837.
Click here to download a copy of the notice.