Surface water management planning: guidance (2018)

Guidance to assist the responsible authorities in preparation of Surface Water Management Plans (SWMPs) to help with the management of surface water flooding.


8 Develop preferred option, confirm funding

Develop preferred option, confirm funding: considerations and example outputs
Considerations Example outputs
  • Once the preferred option is chosen it will probably need to be developed and assessed in more detail.
  • Timings for assigning responsibilities for implementation, confirming funding and further developing and designing the preferred option, are likely to vary.
  • Good design and appropriate expertise (e.g. landscape architects) will be needed to ensure that multiple benefits are realised.
  • The level of detail required will depend on the flood risk and scale of the action (e.g. enough detail should be provided to have high confidence in the effectiveness of the action, and to inform and have high confidence in funding decisions).
  • Section of SWMP report clearly communicating outcomes of this stage, including confirmed action plan and SMART objectives.
  • Other outputs showing key information (e.g. details of actions being implemented).

Develop preferred option
Once the preferred option is chosen it will probably need to be developed and assessed in more detail. The level of detail required will depend on the flood risk and scale of the action (e.g. enough detail should be provided to have high confidence in the effectiveness of the action, and to inform and have high confidence in funding decisions).

Timings for confirming funding and assigning responsibilities for implementation, and for further development and design of the preferred option, are likely to vary (e.g. depending on the scale of option, source of funding and so on).

Good design is essential to ensure that surface water management infrastructure is able to realise multiple benefits, including integrating with and enhancing the urban landscape. It is therefore important that multidisciplinary teams include landscape architects, as well as flood management and drainage engineers.

The outcome of this stage should be an agreed set of feasible and sustainable actions to manage the risk of surface water flooding in an area.

Confirm funding and implementation
SWMPs are likely to identify a range of different actions. Where they include actions for different authorities they should be used to co-ordinate funding and implementation. An agreed action plan that clearly sets out the actions, those responsible for them, the funding mechanism, the implementation dates and key information on actions (particularly structural actions) should be confirmed. This will provide information on the finalised objectives with confirmed dates for achievement making them SMART, as well as aid communication with the various stakeholders, e.g. the public, responsible authorities, information for the LFRMP and the FRM Strategy (see Figure 8.1 and Table 8.1). The Environment Agency programme of flood and coastal erosion risk management schemes provides an example of information that could be recorded https://www.gov.uk/government/publications/programme-of-flood-and-coastal-erosion-risk-management-schemes.

If existing funding and delivery mechanisms are not capable of supporting the most sustainable actions, then Local Plan District Partnership Groups should be informed.

SWMPs may include priority actions that are implemented over the short term, for which more detail is likely to be available. They may also include longer term, aspirational actions for which there is less certainty or information available. Nevertheless, all information that is available should be shared.

Sources of funding will vary depending on who is responsible for implementation, the scale of action required, and so on. They may include:

  • Local authority revenue
  • Local authority capital via FRM Strategy prioritisation
  • Scottish Water maintenance
  • Scottish Water capital via quality and standards process
  • Private funding (e.g. developer contributions)
  • Other sources e.g. EU funding, or if joint projects are being taken forward other funding sources may be available.

Where different authorities are jointly implementing actions, funding may need to be aligned. This should be taken into account when planning implementation.

Figure 8.1 Example SWMP actions

Figure 8.1 Example SWMP actions

Table 8.1 Example SWMP action plan and SMART objectives

Objective Action Status Responsibility Funding Implementation date Standard of protection Number of homes and businesses better protected
Avoid an increase in surface water flood risk in Whole Town Land use planning policy. Existing LA LA revenue On-going N/A  
Clarify ownership and responsibilities for existing surface water management infrastructure. New LA LA revenue 2015-2021 N/A  
Reduce surface water flood risk in Whole Town Update emergency response planning with new pluvial flood information. New LA LA revenue 2015-2021 N/A  
Improve understanding of surface water flood risk in Neighbourhood A LA and Scottish Water to carry out more detailed modelling in localised area, followed by an option appraisal. New LA and Scottish Water Scottish Water Q&S and LA revenue 2015-2021 N/A  
Reduce surface water flood risk from Burn B Option appraisal identified potential for infiltration and conveyance combined with watercourse engineering. Funding not confirmed. Take to detailed design and implementation at later date. New LA Not confirmed Not confirmed, potentially 2021-2027 1:200 yr 25
Maintain existing structure at Burn C Maintain existing surface water flooding conveyance and storage. Existing LA LA revenue On-going 1:100 yr 22
Reduce surface water flood risk in Neighbourhood D Local management of surface water above ground (source control, conveyance and storage), potential to integrate with and improve the urban environment. New LA LA revenue 2015-2021 1:100 yr 25
Reduce surface water flood risk at Road E Further study – validation with observed events required and option appraisal, potential to integrate with cycle path and blue / green network development. New LA Not confirmed Not confirmed, potentially 2021-2027 N/A  

Contact

Gordon Robertson: Flooding_Mailbox@gov.scot

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