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In 2014, cbec was contracted by E-CO to undertake an options appraisal on a ~ 7 km reach of the River Hallingdalselva, nr. Gol, Norway. The study reach is impacted by pressures associated with river regulation for hydropower, including the absence of the natural flow conditions that drive the creation of optimum salmonid habitat. Habitat within the study reach is also affected by the presence … Continue reading Hallingdalselva Habitat Enhancement »

cbec led a team to develop a prioritised catchment restoration plan on the River Naver, Sutherland. The primary objective of the project was, through reinstatement of natural geomorphic processes, to improve habitat conditions for Freshwater Pearl Mussels while achieving other ecosystem services, notably maintenance of ‘good ecological status’ and sustainable flood risk management. Stakeholder consultation and community engagement were key stages in development of the … Continue reading River Naver Catchment Restoration »

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 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 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 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 »

This project included modification of the naturally existing Sunrise Side Channel through topographic manipulation to increase the temporal availability of Central Valley Steelhead (Oncorhynchus mykiss) spawning habitat, and to reduce the opportunity for redd desiccation and subsequent egg mortality due to flow reduction. The project was led by the Sacramento Water Forum with support from US Bureau of Reclamation, Sacramento County Parks, CA Department of … Continue reading Lower American River – Sunrise Side Channel Design and Post-Project Performance Monitoring »

cbec was contracted by SFCWA to develop the largest restoration project in the Lower Yolo Bypass in Yolo County, California. The project is being completed in partial fulfillment of the contractors’ requirement to provide mitigation restoration for the endangered Delta Smelt. cbec undertook water quality monitoring/ bathymetric survey, performed 2D hydrodynamic modeling, and developed 100% design plans and specifications for the project, as described below. … Continue reading Yolo Ranch Tidal Wetland Restoration Project »

cbec, inc. was contracted by MacKay & Somps, at the suggestion of Sacramento County DWR, to assess hydromodification impacts of the planned Glenborough at Easton development on Alder Creek. Modified Draft Sacramento Stormwater Quality Partnership (SSQP) Hydromodification Management Plan (HMP) performance criteria were applied to hydraulic model results from long-term continuous simulations developed for existing and project conditions. The hydromodification assessment for Glenborough at Easton … Continue reading Alder Creek Hydromodification Impacts Assessment »

cbec is providing peer review as part of a revision of an EIS/R associated with a proposed development project at Grady Ranch, part of Skywalker Properties, Marin County, CA. The EIS/R is being undertaken by MCFCWCD. cbec staff has performed field geomorphic reconnaissance of Miller Creek and has conducted peer review of design strategies associated with restoration of this heavily degraded creek. The design of … Continue reading Grady Ranch EIS/EIR Review »