Revision as of 12:28, 27 November 2014 by AndyL(talk | contribs)(1 revision: SFW11671: deployment of changes to allow semantic querying of all case study fields)
Large Woody Debris Secured on the inner bend propagates sedimentation, eventually leading to channel narrowing. +, Large scale ‘hinging’ of willows to provide additional in stream habitat. +, Looking upstream before the work… +, …
Upper Emscher in Dortmund Schüren during construction +, Upper Emscher with lots of restrictions on both sides +, <i>Typha</i>-reeds as seen during normal water levels +, …
The inlet structure at high tide +, Spring-Neap Tide Amplitude Comparison Scheldt Estuary – Lippenbroek (Showing Two Spring-Neap Cycles in April/May 2006) (Source: Maris et al., 2008) +, 1D-Modelling Tidal Curve Comparison Scheldt-Lippenbroek for an Average Tide (Left) and for Neap, Average and Spring Tides (Right) (Source: Maris et al., 2008) +
Aerial view of Narcea River as it passes through Cornellana +, Narcea River geomorphological evolution in Vega de Luerces +, 2006 Aerial photograph of river bars formed in the river Narcea in La Isla channeling, built in 2000. +, …
View from below the weir, highlighting the extent of the drop in water levels +, Installing sediment-trapping mats downstream of the weir, prior to removal +, Removing the actual structure, 6th July 2018 +, …
APEM scientist undertaking catchment survey on the Worfe +, APEM aerial imagery showing the confluence of the Worfe with the main stem of the River Severn +, 3D capture of severe soil loss in the catchment +, …
Small fixed-crest weir prior to lowering. Courtesy of Wild Trout Trust and the Environment Agency. +, Small fixed-crest weir after lowering. Courtesy of Wild Trout Trust and the Environment Agency. +, Backwater effect - 900m upstream of impounding weir structures. Courtesy of Wild Trout Trust and the Environment Agency. +, …
An elongated berm feature on the River Brett near Layham +, Berm feature incorporating a 'scrape' feature +, A berm feature immediately after construction. This photograph is looking upstream from the true right-hand bank on the River Brett +, …
Composite berm consisting of a downstream flow deflector back-filled with spoil material taken from the originally over-steep embankment. The wooden toe adds stability and protection to the feature. +, A second composite berm. Vertical stakes, which hold the berm and wood in place, can be seen. +, Some of the Environment Agency staff involved with the implementation of the scheme. +, …
Aerial photo of erosion at Scaftworth +, The River Idle has been heavily modified over the years and typically lacks in-channel habitat. An existing berm was lowered and planted with common reed to create habitat for nesting birds and invertebrates. +, Phosphate stripping trials +, …
A distribution weir allows to get water into the meander (October 2008). +, the Drugeon rectified at Bannans. +, The Drugeon at Bonnevaux. The meanders are reconnected and the straightened channel is filled. +
A flap on the Couasnon at Chavaignes, prior to its opening. +, A flap on the Couasnon at Chavaignes, afterwards (2008). +, A flap weir on the Couasnon at Baugé, prior to its removal. +, …
Looking downstream at a berm feature that was installed on the true left-hand bank of the River Waveney +, High-powered drills were necessary for us to screw some of the wooden features in place +, Timber screws were used to connect the woody-debris to the vertical stakes. The screws are discrete but ensure the structure is solid +, …
A new buffer strip inside the enlarged bed section +, Piezometers to monitor the nitrogen removal from groudwater by buffer strip +, A new wide forested floodplain +, …