Controlled Reservoir Register (CRR)

What is the CRR?

SEPA is required to establish and maintain a Controlled Reservoirs Register, under Section 9 of the 2011 Act. It contains key information about each registered reservoir including:

reservoir manager details
panel engineers associated with the reservoir
an inundation map highlighting the area of land that is likely to be flooded in the event of an uncontrolled release of water.

CRR information

Information available on request:

safety reports and other associated documentation
inspection reports and other associated documentation
written recommendations/statements by a supervising engineer.

How to request CRR information

To request CRR information, send your enquiry to our mailbox providing the:

RES/R number
reservoir name
details of the information you require.

We are required to make this register available to the public.

How to use the CRR

In the top right-hand side of the screen, there is a blue box which contains the names of all the registered controlled reservoirs. Scroll through this list to select a reservoir.
Click on the reservoir name and the map will move and zoom into the location of your chosen reservoir. A ‘pin’ will appear to indicate where the reservoir is located.
The darker blue shaded area represents the reservoir inundation area. Left click on this area and seven boxes will appear on the right-hand side of the screen.
The fist databox that should be opened is the one titled ‘Reservoir Details’. This box contains the name of the reservoir, so this should be checked to ensure you are looking at the correct reservoir.

If you do not know the name of the reservoir that you are interested in, click on the map and drag to the geographical area of interest and then scroll in. The inundation area should appear.

The information on the Controlled Reservoirs Register is generally updated on a daily basis.

Reservoir inundation maps

Reservoir inundation maps can be accessed from the publicly available Controlled Reservoirs Register.

Reservoir inundation maps will only appear on the Controlled Reservoirs Register once we have received and processed a valid registration document for the reservoir.

It is the responsibility of the reservoir manager to supply reservoir inundation maps at the time of registration. These inundation maps are required to be produced in line with SEPA's Reservoir Inundation Mapping Methodology.