Other projects affecting rivers/watercourses

As well as major multi-million pound projects to provide flood protection to residential and commercial properties the Rivers Agency also maintains sea defences and drainage structures.

Drainage infrastructure

When it comes to new property developments the DfI Rivers may carry out work to upgrade rivers (watercourses) to help accommodate the resulting additional storm water discharges from the new homes or commerical premises.

Asset renewal

DfI Rivers is responsible for a substantial length of flood and sea defences throughout Northern Ireland.

It also maintains many kilometres of underground culverted watercourses where rivers and streams flow through towns and cities.

These structures need to be maintained and, where necessary, replaced to ensure that they provide adequate standards of protection or flow capacity. DfI Rivers regularly surveys these assets and undertakes works to keep them in good condition.

It is important to note that it undertakes schemes and repair works having full regard for the environment and for its legislative responsibility to comply with environmental legislation.

Recent flood management schemes

DfI Rivers undertakes a range of flood alleviation and drainage related works each year. Information on our current and recent schemes are listed below.

Projects completed in year 2013/2014

Location Scheme name Scheme type
Coleraine, County Londonderry Lodgeburn Flood alleviation and drainage infrastructure

Projects completed in year 2011/2012

Location Scheme name Scheme type
Carrickfergus, County Antrim Sullatober Water - Phase 1 Asset renewal - culvert replacement
Meadowside Meadowside Flood Alleviation Scheme Flood alleviation - raising flood wall and flood bank
Magherafelt, County Londonderry North West Drainage Scheme Flood alleviation and culvert repairs
Newcastle, County Down Shimna Park Drainage Scheme Back drainage

Projects completed in year 2010/2011

Location Scheme name Scheme type
Antrim, County Down Abbeyview Stream New culvert
Carryduff, County Down Blenheim Park Stream Culvert replacement
East Belfast, County Down Rochester Avenue Stream Culvert upgrade
Jordanstown, County Antrim Rostulla Stream Culvert replacement
North Belfast, County Antrim Mount Vernon Stream Culvert upgrade
Randalstown, County Antrim Drumsough Culvert upgrade
Keady, County Armagh Church Stream Culvert replacement
Lurgan, County Armagh Halfpenny River Flood alleviation
Lurgan, County Armagh Shane Park Culvert upgrade
Banbridge, County Down Brookfield Stream Culvert repairs & replacement
Dundonald, County Down Ferndene Stream Culvert upgrade
Newcastle, County Down Shimna Park Drainage Scheme Installation of back drainage

Recent culvert renovations

Location Scheme name Scheme type
Antrim, County Antrim Springfarm, Steeple Burn, Steeple Green Culvert repairs & replacements
Armagh, County Armagh D'Alton Drain Culvert repairs & replacement
Keady, County Armagh St Patrick Street Stream Culvert repairs & replacement
Richhill, County Armagh Richhill Urban Drain Culvert repairs & replacement
Derry, County Londonderry Springtown Stream Culvert repairs & replacement
Derry, County Londonderry Woodburn Park Stream Culvert repairs & replacement

For more information on our current or recent schemes, please email your request to rivers.registry@infrastructure-ni.gov.uk or telephone 028 8676 8342.

Notices of proposed works

From time to time DfI issues public notices that it proposes to carry out a drainage scheme or works in a specific location.

There are no current notices of proposed works

Feasibility reports

Before schemes are designed and constructed they must first undergo a feasibility stage. A feasibility study is done in order to identify possible options to alleviate flooding problems. Such studies include assessments of costs and benefits of the proposed options in order to determine if a scheme is viable and which option is best.

DfI Rivers has carried out post flood investigations and feasibility reports in relation to a number of flooding incidents over recent years and produced the following reports.

2017 feasibility reports

2016 feasibility reports

2014 feasibility reports

Completed reports

South Belfast, Finaghy feasibility report (proceding to design stage)


  • Shimna River, Newcastle
  • Mayobridge River, Mayobridge
  • Brokerstown Stream, Lisburn
  • Clonoe, Coalisland
  • The Cutts, Coleraine refurbishment of sluice gates
  • Banbridge Showgrounds Stream
  • Shangarry Stream
  • Newry Greenbank Sea defence condition assessment
  • Belfast tidal flood risk

2012 feasibility reports

2010 feasibility reports

Watercourse maintenance

This involves removing silt, weeds and debris that is causing a significant obstruction to the free flow of water. It is carried out in an environmentally sensitive manner to ensure a balance between managing flood risk, drainage and preserving the river corridor ecosystem.

Back to top