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cbec undertook work relating to the design of a culvert on the Nant Morlais stream in Dowlais, Merthyr Tydfil. An upgraded access track suitable for the transport of construction machinery was required in relation to works being undertaken at the Wales and West Utilities asset at the site. As part of this, the existing culvert that the Nant Morlais stream flows through and over (which … Continue reading Dowlais Culvert Assessment »

cbec was contracted by the Tweed Forum to design measures to stabilise a section of eroding bank on the Wooler Water, Northumberland. The Wooler Water is a highly dynamic gravel-bed river and large flood events in 2008 and 2009 resulted in extensive channel adjustment. At the site in question, the river avulsed into a new location, resulting in the active erosion of a 140 m … Continue reading Wooler Bank Stabilisation »

cbec was contracted by The Wandle Trust in south London to restore a 1.5 km of an urban chalkstream, involving the removal/ modification of three weir structures and associated channel re-profiling. Topographic surveying along the impacted reach provided boundary condition data for 1D/2D coupled hydrodynamic modelling, the output utilised to guide restoration designs and ultimately produced full conceptual and engineering drawings that the Trust used … Continue reading River Wandle Restoration »

cbec have developed detailed restoration designs for a reach of the River Nith at Castlemains, New Cumnock. This reach was prioritised for restoration in the first phase of SEPA’s pilot catchment project because of the potential benefits of restoration to its Water Framework Directive (WFD) status for morphology and to natural flood management (NFM). Options within each sub-section of the reach were identified and assessed … Continue reading SEPA Pilot Catchment Project – Options Appraisal and Outline Design – River Nith (Castlemains, New Cumnock) »

cbec, in conjunction with APEM Ltd, conducted habitat modelling on three ~500m long sections on the River Otter, Devon to assess the impacts of changes to the flow regime. The influence of proposed groundwater abstraction on river base flows may have important impacts on the habitats of various life stage of Atlantic salmon and brown trout. cbec guided a topographic survey of the study reaches … Continue reading River Otter, Devon »

cbec, in conjunction with frog environmental, were contracted by the Norfolk Rivers Trust to design restoration measures for the tidally-influenced end of a chalk stream in north Norfolk. cbec undertook topographic surveys on 3 km of the river, which formed the input for a 2D hydrodynamic model of the channel and floodplain. Together with ecological survey information, this was used to develop and appraise potential … Continue reading River Nar at Pentney »

cbec was contracted to develop restoration measures for the wetland around Ellie Burn, Aberdeenshire, with the ultimate aim of assisting in the improvement of the current ‘moderate’ ecological status (as per EU Water Framework Directive classification) of the larger Burn of Savoch water body (the main flow input to the Loch of Stathbeg nature reserve). Phase One of the project produced a hierarchy of restoration … Continue reading Ellie Burn Wetland Enhancement »

cbec was contracted by Dundee University and the Tweed Forum to provide the joint benefits of improving the ecological status (through river restoration) and natural flood management (NFM) of the Eddleston Water, a tributary of the River Tweed in the Scottish Borders. We initially conducted a geomorphic assessment in 2010 to assist in the development of an ecologically-sensitive catchment management plan and sustainable flood alleviation … Continue reading Eddleston Water Restoration at Cringletie, Lake Wood and Shiphorns »

  cbec was contracted by Natural England to investigate opportunities available for restoration of the upper River Derwent and Stonethwaite Beck in Borrowdale, Cumbria. A desk-based literature review was followed by a fluvial audit of the site. Our team also conducted a detailed topographic and bathymetric survey of 2.2km of main channel and tributary, employing the use of RTK-GPS, Trimble S6 total station technologies as … Continue reading River Derwent Feasibility Study »

cbec applied a full ‘process restoration’ strategy on a tributary of the River Dulnain, with the aim of reinstating dynamic geomorphic and ecological processes. We identified the dominant constraints to natural process and implemented associated measures to reduce these. This involved the addition of large wood and gravel augmentation and the removal of flood embankments. Assessments of sediment transport processes guided the optimal locations for … Continue reading Allt Lorgy Restoration »