Responsibilities of flood risk management authorities

Under the Flood and Water Management Act 2010, North Lincolnshire Council as a Lead Local Flood Authority (LLFA) is responsible for managing the following types of flooding:

  • Surface water flooding – this includes flooding from rainfall run off from surfaces such as roads, roofs, and patios
  • Ordinary watercourses – this includes drains which can be easily overwhelmed after heavy rain, but excludes main rivers that are managed by the Environment Agency
  • Groundwater flooding – this includes flooding caused by heavy and sustained levels of rainfall capable of increasing the groundwater table

Our role as LLFA includes assessing the risk of surface water flooding across North Lincolnshire as well as working with organisations responsible for water management across the area. This brings people and resources together more effectively so that we can reduce the likelihood of flooding happening, and provide the best possible help when it does happen.

Our responsibilities include:

  • Developing, maintaining, applying and monitoring of a strategy for local flood risk management  covering North Lincolnshire
  • Joint working and co-ordination of all relevant organisations through our Flood Risk and Drainage Management Partnership
  • The power to request information about flooding incidents that can help us improve the way flood risk is understood and managed
  • Investigating flooding incidents and publishing the results, especially about  which authorities have relevant flood risk management responsibilities and what they have done or intend to do
  • Maintaining a register of structures or features which have a significant effect on flood risk in our area
  • Designating specific features as flood risk management assets, which give a degree of protection from damage or removal. The power to undertake works to manage flood risk from surface runoff and groundwater
  • The power to undertake works to manage flood risk from surface runoff, ordinary watercourses and groundwater
  • North Lincolnshire Council as lead local flood authority is a statutory consultee on planning applications for major developments with surface water drainage
  • Consenting and enforcement for works on ordinary watercourses. In North Lincolnshire the Internal Drainage Boards assist us in this, as they already exercise this role in the 50 per cent of the council area that they currently serve
  • Working consistently with the National Flood and Coastal Erosion Strategy developed and published by the Environment Agency

For further information on the council’s responsibilities related to drains and gullies, and on reporting incidents and who to contact, please visit our drains and gullies page.

The Environment Agency is responsible for coastal management, managing the risk of flooding from main rivers and regulating reservoirs. The Agency has a duty to contribute to sustainable development when delivering its statutory functions.

Under recent legislation the Environment Agency is now also responsible for:

  • Strategic overview for all forms of flooding at national level
  • Developing a National Flood and Coastal Erosion Strategy to cover all forms of flooding
  • Converting  of Regional Flood Defence Committees into Regional Flood and Coastal Committees with a new remit to include coastal erosion issues
  • The power to request information in connection with its own flood and coastal erosion risk management functions
  • The power to designate structures and features that affect flooding or coastal erosion

Water and sewerage companies manage the supply and quality of drinking water, as well as the disposal and treatment of sewage and, in urban areas, the disposal of surface water runoff from properties.

New roles and responsibilities under the Flood and Water Management Act 2010 include:

  • Acting consistently with the national strategy and  having regard to local strategies when carrying out flood risk management functions
  • Complying with lead local flood authorities’ requests and recommendations in respect of their flood risk management functions
  • Adopting of private sewers

For more information please visit:

Anglian Water

Severn Trent Water

Internal Drainage Boards are responsible for ordinary watercourses within their boundaries.  They manage an extensive network of drainage channels, pumps and sluices which combine to maintain low-lying, high-quality agricultural land, as well as managing water levels across large areas of the county. New roles and responsibilities include:

  • Designating structures and features that affect flooding or coastal erosion
  • Working consistently  with local and national flood risk management strategies
  • Complying with the Lead Local Flood Authority’s requests and recommendations in respect of their flood risk management functions
  • Establishing consortia  with other IDBs
  • Act as a secondary consultee on planning applications for major developments with surface water drainage

Internal Drainage Boards within the North Lincolnshire area are:

Ancholme IDB (Shire Group)

Scunthorpe and Gainsborough Water Level Management Board (Shire Group)

Doncaster East IDB (Shire Group)

Isle of Axholme and North Nottinghamshire Water Level Management Board

North East Lindsey IDB