Green Infrastructure, Flooding & Water Management

Green Infrastructure

Green infrastructure describes the network of greenspaces, landscapes and natural elements that intersperse and connect our cities, towns and villages.

Maximising the potential of local green space is a critical environmental priority for PUSH. Providing new local green assets and making more effective use of existing assets will help absorb pressure from new development and reduce the impact on the protected and environmentally sensitive landscapes surrounding and within South Hampshire. Providing high quality green space, accessible to the public, will be essential to delivering development that supports the economic aspirations of the sub-region.

PUSH have developed a Green Infrastructure Strategy which provides a long term framework (to 2034) to shape and enhance an integrated and multi functional green network of South Hampshire’s distinctive local environments to ensure they can adapt to climate change and are managed and valued as part of sustainable, prosperous and healthy lifestyles.

South Hampshire GI Strategy 2017-2034

PUSH in 2012 approved an implementation framework, which identified a number of strategically important projects it would support. Most of them are large scale projects, which will be delivered over a long time period. Progress has been made on several of them:

  • over £400,000 of funding was identified to improve access to the countryside via the rights of way network
  • the Horsea Island country park was opened to the public in 2014 (Horsea island strategy)
  • a Masterplan for the Alver Valley Country Park was completed in 2014
  • a Heritage Lottery Fund application was submitted for further investment at the Royal Victoria Country Park
  • PUSH provided funding for a scheme to improve a section of the coast path on Hayling Island

Flood Risk Management

PUSH Strategic Flood Risk Assessment (SFRA) 2016 Update Report

The PUSH Strategic Flood Risk Assessment (SFRA) 2016 update has delivered revised reporting, mapping and guidance notes to replace the document “Partnership for Urban South Hampshire Strategic Flood Risk Assessment Final Report, December 2007” which was compiled by Atkins Ltd and published in 2007. The update was undertaken on behalf of PUSH by the Eastern Solent Coastal Partnership and delivered in June 2016.

After the publication of the previous PUSH SFRA there were a number of changes to planning guidance and the enactment of new Legislation that includes the Flood and Water Management Act (2010). National planning policy is now defined in the National Planning Policy Framework (NPPF) and the supporting Planning Practice Guidance (NPPG).

This Level 1 Strategic Flood Risk Assessment is a strategic document which assesses and maps all forms of flood risk from tidal, river, groundwater, surface water and sewer sources, taking into account future climate change predictions. The package of work provides appropriate supporting evidence for The PUSH Spatial Strategy review in addition to Local Plans being developed by the local partner authorities.

The purpose of the PUSH SFRA update has been to:

  • provide information that reflects the changes to planning policy and guidance and new Legislation since the previous SFRA;
  • provide a high level assessment of the flood hazard within the Flood Zones;
  • provide a high level assessment of the effects of climate change scenarios on sea level rise at the coast and in estuaries and river flows upstream;
  • provide information on existing defences and flood risk management measures;
  • provide an evidence base to allow a sequential approach to site allocation to be undertaken within a flood zone;
  • allow development of the policies and practices required to ensure that any development being considered in Flood Zones 2 and 3 is appropriate and satisfies the requirements of the NPPF.

You can access and download the updated PUSH SFRA reporting and guidance notes below. The updated flood risk mapping GIS system is also available for online viewing.


Strategic Flood Risk Assessment Update (2016)

Guidance: East Hants Eastleigh Fareham Gosport Havant IOW New Forest Portsmouth Southampton Test Valley Winchester

Please be aware that the Flood Risk Map is currently unavailable, we are endeavouring it to go up as soon as possible, potentially could be a few months. Sincere apologies for the inconvenience caused.

Please use this link as an alternative in the meantime

Flood Risk Map 

Water Management: supply and waste water disposal

PUSH, working with the Environment Agency, Southern Water and Portsmouth Water, completed an Integrated Water Management Study (2008) into the requirements for water supply, water quality, drainage and disposal of waste water, and for designated conservation sites, on a sub-regional basis. Together with other work done by the Agency and the water companies this will guide investment in water related infrastructure over the next 25 years, including addressing existing inadequacies in such infrastructure such as severe capacity constraints in drainage and surface run-off infrastructure. A pilot project will be undertaken in Portsmouth to test ways of separating foul drainage and surface runoff infrastructure to increase capacity.

Further information:

Portsmouth Water Water Resources Management Plan (2014)

Southern Water Water Resources Management Plan (2013)