River Advice for Boaters (RAB)


(Previously called Strong Stream Advice SSA) is a free messaging service to advise waterway users when levels and flows are changing and we strongly advise against attempting to navigate.  It is available for the Rivers Great Ouse, Nene and Ancholme and is a useful way of making sure rivers are safe to navigate.



You can register, cancel and update your registration using the following contact details:

Telephone:        02030 255068


Email:                   waterwaysssaanglian@environment-agency.gov.uk


You will need to provide the following information:

The river(s) you would like to receive the messages for


Your name and address


A telephone number for the Flood Warning System to ring – this can be a landline or mobile number


Your boat name and/or registration number – we use this as a security question


Whether you would also like to receive text and/or email messages


The Flood Warning System we use to send the messages has to ring a telephone number (landline or mobile) before it can send text and/or email messages.  It is not possible to register for text and/or email messages only.

Customer Contact Centre 03708 506 506 (Mon to Fri 8am to 6pm)

Incident Hotline 0800 80 70 60 (24hr)

Floodline 0345 988 1188

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