Mallon announces completion of £750k Stranmillis Weir refurbishment

Date published: 25 June 2021

Infrastructure Minister Nichola Mallon has announced that that the £750,000 project to refurbish Stranmillis Weir is now complete.

The works, which are part of the Lagan Gateway project, have strengthened the weir structure. The main part of the scheme which was the upgrade of the three vertical lift gates, each approximately 7.5 metres long and 1.7 metres high is complete. Some minor works including the erection of a fence will be complete in early summer.

Minister Mallon said:

“The completion of this refurbishment work is good news for people in the area. These three gates play a vital role in controlling upstream water levels which helps reduce the risk of flooding during periods of severe weather.  

“New lighting and safety equipment has also been installed, alongside other infrastructure repairs including the upgrading of mechanical and electrical equipment to ensure that the weir can continue this key function. This will safeguard its structural integrity for many years to come so that it can continue to offer much needed protection during severe weather events.

“Refurbishing the weir is a key part of the overall Lagan Gateway Project which is being taken forward by Belfast City Council and other partners. I am pleased that my Department could play it’s part in a project that once complete will regenerate this 19th century waterway by creating a new Lagan Gateway enhancing tourism, jobs and business opportunities, boost active travel opportunities and really bring this area back to life.”

Belfast Lord Mayor, Councillor Kate Nicholl said:

“The refurbishment of Stranmillis Weir is another major milestone in the Lagan Gateway Project. It will help regulate river flow and reduce the threat of flooding downstream. This, along with the other improvements will have a transformative effect on the area.

“The next major milestone will see the new pedestrian and cycle bridge open this summer, helping to improve connections between communities in south Belfast and to bring more people into the area. In addition, later this summer a new navigation lock will reopen part of a waterway that was first built in the 1800s to connect Belfast to Lough Neagh. I am delighted that Belfast City Council and its partners have helped deliver this fantastic project.”


Notes to editors: 

  1. The works have included the refurbishment of the location’s structural, hydraulic and control features as follows: back fill of voids and anti-erosion repair works; repair of concrete civil structure and adjacent masonry walls; replacement of the existing sluice gates, operation gear, catwalk and associated works; repair of rock armour at upstream entrance of the structure; rock armour required along the downstream face; and installing new lighting and safety equipment.
  2. The £5 million Lagan Gateway project is led by Belfast City Council, with 50% of funding coming from the council’s Belfast Investment Fund. Other partners include Ulster Garden Villages, Department for Communities, the Department for Infrastructure and the Lagan Navigation Trust. For more information visit
  3. All media queries should be directed to the Department for Infrastructure Press Office at:
  4. The Executive Information Service operates an out of hours service for media enquiries only between 1800hrs and 0800hrs Monday to Friday and at weekends and public holidays. The duty press officer can be contacted on 028 9037 8110.
  5. Follow the Department on Twitter @deptinfra and on Facebook @DepartmentforInfrastructure.

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