River Lagan Dredging Works

River Lagan Dredging Works | CEEQUAL

CEEQUAL Very Good – Whole Team Award
Version 4, Aug 2012 | Belfast, Northern Ireland

ClientDepartment of Social Development
DesignerDoran Consulting
ConstructionGraham Construction
Assessor: Dion Williams

Project Summary

The site of the dredging works was the River Lagan which flows through the middle of Belfast. The dredging works were carried out on the impounded stretch of the River between the Stranmillis Weir and Lagan Weir. The Client was the Department for Social Development (DSD) who have a statutory obligation to maintain a minimum navigable depth of 1.5m throughout the impounded River Lagan.

A comprehensive dredging scheme was undertaken in 1994 which involved dredging of the impounded river and establishment of an incised channel. The dredging project in 2010/2011 was therefore considered a maintenance dredging of the river that involved reinstatement of the 1994 incised channel. All dredged material from the site was disposed of at an off shore disposal site in accordance with a NIEA license.

Doran Consulting were the designers for the project and the contractor was Graham Construction Ltd. As the project related to a maintenance dredging of a river bed with no impact on the river banks there was substantial scoping out particularly in relation to Sections on Land Use, Landscape Issues, Ecology, Historic Environment and Energy and Carbon.

The CEEQUAL Assessment scored highly in Sections 6 and 8-12. For example Section 6 Water Resources and the Water Environment scored 90% with high scoring for protection of the water environment through monitoring of Oxygen levels and prevention of any fuel discharge. Section 10 Transport scored 91% as traffic impact was minimal due to the decision early on to dispose of dredged material at sea through the use of barges.

River Lagan Dredging Works | CEEQUAL
Machinery for the project lifted into place
River Lagan Dredging Works | CEEQUAL
Site visit 14 October 2010
River Lagan Dredging Works | CEEQUAL
Site visit 1 November 2010

CEEQUAL insights and case studies

Browse the latest insights, thinking and case studies from CEEQUAL

 

Project Anvil Main Works: New and Refurbishment Airfield Works, RAF Marham, Norfolk

Project Anvil Main Works: New and Refurbishment Airfield Works, RAF Marham, Norfolk

Project Anvil is a Ministry of Defence major infrastructure investment project to improve existing facilities at RAF Marham station for ...
Read More
Crossrail Surface Works: Stations West (Phase 1) | CEEQUAL
| CEEQUAL Case Studies, Rail, UK

Crossrail Surface Works: Stations West (Phase 1)

The Crossrail West Stations Project received a CEEQUAL Excellent Whole Team Award due to the commitment of the project to ...
Read More
Stockholm Extended Metro: Nacka/Södermalm/Söderort
| CEEQUAL Case Studies, Rail, Scandinavia

Stockholm Extended Metro: Nacka/Södermalm/Söderort

The Stockholm Metro extension is a sustainable transport project that expands the public transport opportunities within the region. The project ...
Read More
Scottish Trunk Road Network – North West Unit

Scottish Trunk Road Network – North West Unit

The following work types were considered in detail during the 2018/19 CEEQUAL assessment in the North West Unit: Roads Planned ...
Read More
Scottish Trunk Road Network – North East Unit | CEEQUAL

Scottish Trunk Road Network – North East Unit

In 2016 BEAR Scotland committed to commence the CEEQUAL process, pursuing a Whole Team award in conjunction with Transport Scotland ...
Read More
Greyabbey and Kircubbin Wastewater Treatment Works | CEEQUAL

Greyabbey and Kircubbin Wastewater Treatment Works

Greyabbey and Kircubbin are located towards the northern end of Strangford Lough, Northern Ireland. In 2001 Water Service Design Group ...
Read More

Get in touch

Contact us now or call us on +443330147880 if you would like to talk to our team about how CEEQUAL can support you.

Tags