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- Swansea_Barrage abstract "The Swansea barrage (or the Tawe barrage) was completed in 1992 creating a new marina at the mouth of the River Tawe extending the leisure boat facilities already being offered by the old South Dock.The barrage structure includes a boat lock, spillway, fish pass and generator turbine. The turbine serves a dual use: acting as a power generator for the National Grid as well as being used to pump water back into the Tawe river system.The barrage scheme gave rise to a number of environmental concerns. Fish navigation up the river and dissolved oxygen levels were problems that arose after completion. Salt water that came in at high spring tides sank to the bottom and stayed there, reducing oxygen levels. The Environmental Advice Centre was commissioned to undertake an aeration scheme trial in the River Tawe in the summer of 1998. The system was based on a diffuser design and propeller mixer, which proved highly effective at exporting the saltwater from the deep area of the trial site and raising dissolved oxygen concentrations at the bed.Following the success of the trial system a more extensive system was designed for the river for installation in 1999 -2000. The first stage of the installation of the designed system was undertaken in June 1999 and comprised a combination of diffusers and a large propeller mixer.The installation was conducted using a diving team to ensure optimal location of the diffusers within the river channel. The installation will be completed over two years to treat all the problem areas over a 4 kilometres (2.5 mi) long reach of river and ameliorate the poor water quality presented in these areas.Monitoring results from the system installed to date have indicated that aeration has effectively raised the oxygen concentration and assisted in the export of saline water from the system. Following the success of this work the Environmental Advice Centre is currently examining designs for other reaches of tidal river within the United Kingdom that display similar problems. Following the success of the River Tawe aeration scheme the neighbouring Welsh city of Cardiff used the same method to improve the quality of the water in its newly created bay.Other fears that arose with the building of the barrage such as the raising of the water table causing ground subsidence problems in the low-lying areas around the River Tawe. Since completion, no significant subsidence problems have arisen.".
- Swansea_Barrage thumbnail Swansea_bay_barrage.jpg?width=300.
- Swansea_Barrage wikiPageExternalLink pid=62.html.
- Swansea_Barrage wikiPageID "6247434".
- Swansea_Barrage wikiPageLength "3347".
- Swansea_Barrage wikiPageOutDegree "31".
- Swansea_Barrage wikiPageRevisionID "665912925".
- Swansea_Barrage wikiPageWikiLink Aeration.
- Swansea_Barrage wikiPageWikiLink Canal_lock.
- Swansea_Barrage wikiPageWikiLink Cardiff.
- Swansea_Barrage wikiPageWikiLink Category:Buildings_and_structures_in_Swansea.
- Swansea_Barrage wikiPageWikiLink Category:Dams_completed_in_1992.
- Swansea_Barrage wikiPageWikiLink Category:Dams_in_Wales.
- Swansea_Barrage wikiPageWikiLink Category:Energy_infrastructure_completed_in_1992.
- Swansea_Barrage wikiPageWikiLink Category:Hydroelectric_power_stations_in_Wales.
- Swansea_Barrage wikiPageWikiLink Category:Pumped-storage_hydroelectric_power_stations.
- Swansea_Barrage wikiPageWikiLink Category:Swansea_Bay.
- Swansea_Barrage wikiPageWikiLink Category:Tidal_barrages.
- Swansea_Barrage wikiPageWikiLink Electric_generator.
- Swansea_Barrage wikiPageWikiLink Electrical_generator.
- Swansea_Barrage wikiPageWikiLink Environmental_Advice_Centre.
- Swansea_Barrage wikiPageWikiLink Fish_ladder.
- Swansea_Barrage wikiPageWikiLink Fish_migration.
- Swansea_Barrage wikiPageWikiLink Lock_(water_transport).
- Swansea_Barrage wikiPageWikiLink Marina.
- Swansea_Barrage wikiPageWikiLink National_Grid_(Great_Britain).
- Swansea_Barrage wikiPageWikiLink National_Grid_(UK).
- Swansea_Barrage wikiPageWikiLink Oxygen_saturation.
- Swansea_Barrage wikiPageWikiLink River_Tawe.
- Swansea_Barrage wikiPageWikiLink Saline_water.
- Swansea_Barrage wikiPageWikiLink Seawater.
- Swansea_Barrage wikiPageWikiLink Spillway.
- Swansea_Barrage wikiPageWikiLink Stream_bed.
- Swansea_Barrage wikiPageWikiLink Subsidence.
- Swansea_Barrage wikiPageWikiLink Tidal_river.
- Swansea_Barrage wikiPageWikiLink Turbine.
- Swansea_Barrage wikiPageWikiLink United_Kingdom.
- Swansea_Barrage wikiPageWikiLink Wales.
- Swansea_Barrage wikiPageWikiLink Water_quality.
- Swansea_Barrage wikiPageWikiLink Water_table.
- Swansea_Barrage wikiPageWikiLink File:Swansea_bay_barrage.jpg.
- Swansea_Barrage wikiPageWikiLinkText "Swansea Barrage".
- Swansea_Barrage hasPhotoCollection Swansea_Barrage.
- Swansea_Barrage wikiPageUsesTemplate Template:Convert.
- Swansea_Barrage wikiPageUsesTemplate Template:Coord.
- Swansea_Barrage wikiPageUsesTemplate Template:Energy_in_Wales.
- Swansea_Barrage wikiPageUsesTemplate Template:Inline.
- Swansea_Barrage wikiPageUsesTemplate Template:Reflist.
- Swansea_Barrage subject Category:Buildings_and_structures_in_Swansea.
- Swansea_Barrage subject Category:Dams_completed_in_1992.
- Swansea_Barrage subject Category:Dams_in_Wales.
- Swansea_Barrage subject Category:Energy_infrastructure_completed_in_1992.
- Swansea_Barrage subject Category:Hydroelectric_power_stations_in_Wales.
- Swansea_Barrage subject Category:Pumped-storage_hydroelectric_power_stations.
- Swansea_Barrage subject Category:Swansea_Bay.
- Swansea_Barrage subject Category:Tidal_barrages.
- Swansea_Barrage point "51.616 -3.929".
- Swansea_Barrage type Dam.
- Swansea_Barrage type Station.
- Swansea_Barrage type Dam.
- Swansea_Barrage type Reservoir.
- Swansea_Barrage type Station.
- Swansea_Barrage type SpatialThing.
- Swansea_Barrage comment "The Swansea barrage (or the Tawe barrage) was completed in 1992 creating a new marina at the mouth of the River Tawe extending the leisure boat facilities already being offered by the old South Dock.The barrage structure includes a boat lock, spillway, fish pass and generator turbine.".
- Swansea_Barrage label "Swansea Barrage".
- Swansea_Barrage sameAs m.08z7rl.
- Swansea_Barrage sameAs Q7653656.
- Swansea_Barrage sameAs Q7653656.
- Swansea_Barrage lat "51.616".
- Swansea_Barrage long "-3.929".
- Swansea_Barrage wasDerivedFrom Swansea_Barrage?oldid=665912925.
- Swansea_Barrage depiction Swansea_bay_barrage.jpg.
- Swansea_Barrage isPrimaryTopicOf Swansea_Barrage.