This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations.(August 2014) (Learn how and when to remove this message)
The Swansea barrage (or the Tawe barrage) is a structure near the mouth of the River Tawe in Swansea, Wales. It was completed in 1992, creating a marina which extended the leisure boat facilities already being offered by the former South Dock.[1]
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 has an installed generating capacity of 200kW.[2]
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.[3] 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 Tawe in the summer of 1998. The system was based on a diffuser design and propeller mixer, which proved highly effective at exporting the salt water 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 installation in 1999–2000. The installation was conducted using a diving team to ensure optimal location of the diffusers within the river channel. The installation was expected to treat all the problem areas over a 4 kilometres (2.5 mi) long reach of river and ameliorate the poor water quality present 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 the River Tawe aeration scheme, the 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 did not materialize.
^Jean Paul Lagardere; Marie-Laure Begout Anras; Guy Claireaux (31 October 1998). Advances in Invertebrates and Fish Telemetry: Proceedings of the Second Conference on Fish Telemetry in Europe, Held in LaRochelle, France, 5 - 9 April 1997. Springer Science & Business Media. p. 322. ISBN 978-0-7923-5211-2.
^"Technology". Tidal Electric. Retrieved 26 June 2023.
^"Spring clean for river". BBC News: Wales. 19 November 1999. Retrieved 1 May 2024.
The Swanseabarrage (or the Tawe barrage) is a structure near the mouth of the River Tawe in Swansea, Wales. It was completed in 1992, creating a marina...
of Kilvey Hill and Crymlyn Bog beyond to the east. Lower Swansea valley SwanseaBarrageSwansea University Rowing Club, who train on the river. "First Water...
Swansea Marina is a marina in Swansea, south Wales, behind the barrage at the mouth of the River Tawe. There is a boatyard for building and servicing boats...
needed] Eventually, oxygenation systems (based on those used at the SwanseaBarrage) were installed which improved water quality and allowed the composition...
Barrage Cwm Dyli Dinorwig Power Station Dolgarrog power station Gwynt y Môr Maentwrog power station Rhyl Flats SwanseaBarrage Tidal Lagoon Swansea Bay...
pharmacy, Swansea University school of Medicine and ABM university health board. Sail Bridge; Trafalgar Bridge over the Swanseabarrage. Projects under...
December 2022 and January 2023; locations included the Cardiff Bay Barrage and Swansea University Bay Campus in Wales. Because the weather on set was unpredictable...
The Severn Barrage is any of a range of ideas for building a barrage from the English coast to the Welsh coast over the Severn tidal estuary. Ideas for...
ducted. Tidal barrages use potential energy in the difference in height (or hydraulic head) between high and low tides. When using tidal barrages to generate...
has been appointed chairman of the Swansea Bay City Region Board. There is a plan to build a barrage across Swansea Bay and direct water from the incoming...
listed)] Swansea Bay barrage Clydach Market Picton Arcade Shoppers Walk Arcade Castle Arcade High Street Arcade Quadrant Shopping Centre Swansea Market...
The Swansea Canal (Welsh: Camlas Abertawe) was a canal constructed by the Swansea Canal Navigation Company between 1794 and 1798, running for 16.5 miles...
(including Swansea Marina) is a residential area of Swansea, Wales, immediately south of the city centre shopping core. It falls within Swansea's Castle ward...
opportunities for women in Wales by assisting with childcare. The SwanseaBarrage is constructed on the River Tawe estuary. A full-time officer for Welsh...
Tidal Lagoon Swansea Bay was a proposed tidal lagoon power plant that was to be constructed in Swansea Bay off the south coast of Wales, United Kingdom...
a community in the Brecknockshire district of Powys, Wales. Tawe barrage in Swansea, Wales. Hytche Athletic Center - formerly known as J. Millard Tawes...
mother was one of the first women to study at University College, Swansea (now Swansea University), where she read Welsh. She became a schoolteacher in...
is a river in Wales which marks the border between Carmarthenshire and Swansea. The river is sourced from an underground lake at the Black Mountain emerging...
list, and was also selected as Britain's best beach for 2007. The city of Swansea is the largest settlement on the Welsh coast of the Bristol Channel. Other...
where the River Neath enters the larger Swansea Bay Swansea Bay (part) The coast of Swansea includes half of Swansea Bay, half of the Loughor estuary and...
the UK government to fund a £1 billion development of a sea wall around Swansea Bay to harness the power of the tide. The power generated could provide...
Glamorgan AVC at Swansea was raised by Captain George Grant Francis. The unit's initial training was given by the permanent staff of the Swansea-based Royal...
three-mile (5 km) stretch of sandy beach on the north-eastern edge of Swansea Bay in Port Talbot, Wales. With its high breaker waves, it is popular with...
This is a list of Barrage Balloon Organisations of the Royal Auxiliary Air Force formed shortly before and during the Second World War. As the AAF was...
men) In April 1800 the Swansea Troop was called out in aid of the civil power when corn riots broke out in Neath and Swansea, and its arrival on the...
stations that run on tidal power; both tidal range (impoundment via a barrage) and tidal stream (harnessing currents). Since tidal stream generators...
College Cup 2008 Major League Lacrosse Rochester Rattlers vs. Philadelphia Barrage 2009 NCAA Men's College Cup 2009 Panama vs. Honduras International Friendly...
title from 1944 to 1945. Baer won on points in a ten-round decision at Swansea, England, and though he had a significant advantage in height of nearly...