Trial of CSO Warning Lights

1. Introduction
1.1. The PLA and the Tideway Tunnel Project team invite you to share your feedback on this trial (see Proposal) and in particular your views on the location and visibility of lights for river users.
1.2. This consultation and trial affect the following areas:
A. Chelsea Embankment Foreshore
B. Victoria Embankment Foreshore
C. Heathwall Pumping Station
D. Albert Embankment Foreshore

2. The Consultation Process
Affected Parties
2.1. This consultation is directed towards river users who frequently or occasionally navigate in or near the areas described in 1.2.
Consultation Duration
2.2. This consultation opens on 20th March 2025 and will last for 30 days including the trial period. It will close on 19th April 2025 at 23:59.
Conclusion
2.3. The information you submit will be made available to other parties and responses to this consultation are anonymous.
2.4. We appreciate all responses to our consultations however, as responses to this consultation are anonymous, we are unable to respond directly to respondents. We will issue a Consultation Statement once responses have been reviewed.

3. Responses to this Consultation
3.1. Reponses to the consultation should be sent so that they are received no later than the closing date detailed in 2.2.
3.2. Unlike previous navigational consultations from the PLA, responses to this consultation may only be submitted by using the online form. We regret that we cannot accept responses in any other format.
3.3. To access the form, follow the link or scan the QR code below. Please note that this form will only accept responses during the time period described in 2.2 Consultation Duration.

4. Proposal
4.1. Mariners are advised that for a period of five days from 20th- 24th March 2025 the Tideway Tunnel Project team will be trialling Combined Sewer Outfall (CSO) warning lights at their sites at Chelsea Embankment, Albert Embankment, Heathwall Pumping Station and Victoria Embankment Foreshore.
4.2. These warning lights will be used to indicate to mariners when a CSO is discharging. This is a trial only and these lights do not currently indicate an active CSO discharging. Separate NTMs will be published for each site once it comes online.
4.3. Mariners should note that the trial light at Chelsea Embankment will be in addition to the operational light described in NTM 23-25, which should be followed.
4.4. The approximate location of the trial lights on each site is shown on the following chartlets.

Chelsea Embankment Foreshore

Victoria Embankment Foreshore

Heathwall Pumping Station

Albert Embankment Foreshore

4.5. The lights will be mounted on masts at each site and will display two vertical yellow lights alternately flashing ½ second over a 1 second period. Albert site will also have a repeater light located on Vauxhall Bridge facing upriver between arches 4 &5, as shown on the chartlet above.