MNV Consulting Ltd

Specialists in water resources and hydro-power development

Browsing Posts published by Mountain Environments

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Last week, the Scottish Parliament passed the Flood Risk Management (Scotland) Bill. This legislation propels Scotland to the forefront of modern flood management law by having its emphasis on sustainability.

MNV is justifiably proud to have played such a significant role in the development of the policy and of the Bill. Working with the Scottish Government and Scottish Environment LINK, MNV was fundamental in the development of the principles of sustainable flood management and the leading authority on the role of natural flood management. MNV continues that contribution to the development of the legislation and its associated guidance today.

Modernisation of Scotland’s flood legislation was sorely needed. There is an increased risk of flooding from climate change, land management and planning practice. Previous flood legislation was not fit for dealing with those issues.

The new Flood Act will bring a modern, sustainable approach. It will clarify roles and responsibilities especially of local authorities, SEPA and Scottish Water. It will allow for a flexible and local approach to flood risk management with the river basin or sub-basin as the unit. Further, it will ensure that stakeholders are identified and involved and that the approach to flood risk management is integrated amongst the authorities. Maps of risks and assessments of hazards must be prepared and the authorities must give first consideration to natural flood management measures in lowering the flood risk to people and property.

The Bill will go for Royal Assent within the next few weeks, becoming an Act later in the summer of 2009.

Normally, our business interests are very diverse, covering everything from advice on the risks of flooding for proposed new developments, through to the restoration of historical river channels damaged by development of various types. Once in a while, a major new area of interest appears – something that gets the attention of the public as well as the hydrological industry. For the last few years, the emerging topic has been ‘Sustainable Flood Management’ (SFM) described, (they said ‘defined’!) in Scottish Government sponsored papers as:

“Sustainable flood management provides the maximum possible social and economic resilience against flooding, by protecting and working with the environment, in a way which is fair and affordable both now and in the future.”

But what does it mean in practice, and what are the implications for folk living in flood-prone areas (on present rainfall trends, more and more of us)?

In simple terms, SFM means the adoption of a ‘whole of river catchment’ approach to flood control, using techniques and systems designed to minimise flood heights at critical points in the river system – usually in or near towns. In general, this aim is achieved in two ways:

    1) By increasing the storage capacity of upstream areas, blocking field drainage channels, providing ‘leaky’ buffer areas, new wetlands, etc.
    2) By river channel realignment to provide or replace meanders in order to slow flows down.