Guidelines for the Assessment and Planning of Estuarine BarragesNeville Burt, Andrew Rees Based on research commissioned by DETR and the Environment Agency, Guidelines for the assessment and planning of estuarine barrages presents guidance on the planning, design, construction and operation of estuarine barrages. The development and operation of barrages have the potential to have a considerable impact on the existing estuarine environment. It is essential therefore that all environmental costs are taken into account and that alternative options that may satisfy the aspirations of the developer are fully considered. |
Contents
Illustrations | xlv |
1 | 23 |
1 | 56 |
Fisheries and conservation | 87 |
Water quality | 127 |
Hydrodynamics | 157 |
Morphology | 189 |
1 | 209 |
References | 373 |
Planning and environmental legislation | 393 |
The Tawe Barrage | 405 |
The Tees Barrage | 413 |
The Usk Barrage | 427 |
Codes standards reference manuals | 433 |
Gates valves and ancillary equipment | 439 |
Modelling | 461 |
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Common terms and phrases
algal algal blooms appropriate aquifer areas barrage construction barrage developments barrage scheme Cardiff Bay Barrage changes channel Chapter Civil Engineers cofferdams computational model conservation considered detailed discharge downstream drainage dredging effects ensure Environment Agency environmental assessment estuary feasibility study Figure fish pass fisheries flood defence flushing fluvial flow freshwater gates gravitational circulation groundwater groundwater levels guidance habitats Habitats Directive harbour HR Wallingford hydraulic identified increase issues lock ment migratory fish monitoring National Rivers Authority navigation operation outfalls overtopping physical model planning pollution potential predicted problems reduce regime remedial measures result risk river flow Rivers Taff saline water Section sediment ship significant siltation sluices species stage stratification structure surge protection barrier sustainable development Tawe Barrage Tees Barrage Thames Barrier tidal power tidal range tide excluding barrage tion upstream valves velocities vertical vessels water level water quality wave weir