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U
Our first venture with the Usk owners and fishermen was the joint buy out of the putchers and nets in the Estuary in 2000. Working together showed how much there was in common with the interests on the Wye and at the end of an appropriate 'engagement', we merged. The first priority after joining forces was to submit a project under ERDF Objective 2 and Transitional funding as these sources of major funds for river restoration were coming to an end. After several months work, the Foundation succeeded in gaining approval for two paired projects in the Transitional and Objective 2 areas that jointly cover the Usk catchment from source to Abergavenny. The projects commenced in January 2004 originally to run until the end of 2006. Together they are called the Usk Project, or more simply UP! and have a total projected spend of £0.9 million.
In 2007, a year's extension was granted to UP! (above Brecon) taking the total budget to £1.12m.
UP! funding was used to restore the degraded and inaccessible habitat on the Usk tributary streams and through the reopening of the blocked tributaries.
A marketing strategy similar to that set up in pHish was used to bring the benefits of river improvements to the rural economy with the ultimate goal of making these improvements self funding and sustainable. Our partners are listed below and includes for the first time Brecon Beacons National Park, through which most of the rivers involved in the project flow.
While the salmon fishing on the Usk may have improved since the 2000 net buy off (funded by Wye Salmon Fishery Owners Association, United Usk Fisherman's Association and the then Wye Foundation), there is still considerable scope for improvement and the famous Usk brown trout is not as numerous as it once was. Many regular fishermen are pointing out that while the average size of trout has risen dramatically (2lb fish are now common), numbers of small fish have declined. Stocking with hatchery reared fish is bad news for the river as it is expensive, fails to tackle the underlying problems and endangers the native populations. In addition, 'stockies' are no substitute for the famous native Usk trout.
Fishery scientists use the term 'lack of recruitment' to describe the phenomenon of poor juvenile fish production. The problem lies in the smaller tributaries. Siltation, diffuse pollution, habitat destruction and obstructions are the prime suspects and UP! is the means of putting right these evils.
UP! Project achievements:
Fish passes were built on:
Cynrig
Rhiangoll
Crawnon
Significant barriers to fish migration were removed on:
Cilieni
Menasgin
Sorgwm
Ychen
...while minor barriers were removed on:
Tarell
Menasgin (again)
Honddu
Grwyne.
Habitat restoration work was completed on:
Bran
Crai
Ysgir Fawr
Grwyne
Upper main stem Usk
Ethrim
Rhiangoll
Tarell
Honddu
R
Our first walk over survey of the upper Wye (1995/6) showed that over 50% of all available spawning habitat for salmon (by area) and over three quarters of trout spawning habitat was barred to ascending fish. A combination of neglect and poor regulation had allowed weirs, badly designed crossing points and road culverts to be built without the requirement for free passage of fish. These were the main culprits but huge debris dams had also formed on an alarming number of tributaries, completely sealing off hundreds of kilometres of essential spawning and nursery habitat. For salmon this was disastrous and the main cause of their decline, particularly the loss of the Lugg and its tributaries in the 1980s.
Small populations of brown trout remained above the blockages but the larger main channel residents, which provided the bulk of the egg deposition, were prevented from reaching the ideal (smaller) sized tributaries. The extent of the decline of brown trout as indicated by juvenile densities was even greater than that of salmon in the Wye by 1996.
Between 1996 and 1997 the Foundation embarked on a programme to reopen the tributaries of the upper Wye. The experience of the Tweed, North Esk and elsewhere showed that this is the single most cost effective way of increasing fish populations. The programme took two years, including surveying, and reopened 132km of salmon and 330km of trout spawning areas. Since then, the work has continued and as of 2013, there are just a few sites on the lower Usk, Wye and Lugg that require fish passes.
After this initial effort, the Foundation has continued opening or reopening Wye and Usk streams and rivers in the projects: WHIP , pHish , UP! , Leader+ , Lugg & Arrow, Radnor Foal and ART/Defra. The current and historical situations are detailed on the maps below which show the extent of the Wye and Usk catchment upstream that was blocked to migrating fish in 1972.
THE LUGG & ARROW
The Lugg and Arrow (the Wye's largest tributary system) had numerous barriers, built in the 18th and 19th centuries to control flooding and erosion, and to provide a water supply for agriculture and milling. Until the early 1980s, the catchment was accessible enough to enable up to 3,000 salmon redds to be recorded in a winter. However, in 1982 the Leominster Flood Alleviation Scheme sealed off the Lugg and the run dwindled to a few persistent pairs of salmon. This was partially corrected with a modern Larinier fish pass built at Hampton Court in 2003 and with two passes at Leominster in 2004.The next phase was to secure full access over the historic weirs and this will be completed in 2013.
USK
In 2004 we turned our attention to the Usk and found that while the river above Brecon is mainly unobstructed, the catchment from Brecon to Abergavenny is as bad as on the upper Wye in 1995 with every major tributary having at least one serious obstruction.
Our tour de force was the construction of a fish pass in 2006 on the Cynrig – a stream that collects its rainfall from the steep slopes at the top of the Brecon Beacons.
Milestones in improving Wye and Usk fish access:
• 1996/7 Upper Wye Access Project.
• 2000 Flood washes out Skenfrith weir, Monnow
• 2003 pHish project - 7 fish passes.
• 2003 Hampton Court fish Pass opened R Lugg by EA Wales.
• 2004 Lugg Flood alleviation scheme fish passes (EA Wales).
• 2004 UP! Project: Cilieni Weir removed.
• 2006/8 Lugg and Arrow: 12 fish passes completed.
• 2006 Cynrig fish pass completed and weir removed Menasgin.
• 2008 Osbaston Fish Pass (Monnow) and lower Arrow passes completed.
• 2010 Four more fish passes completed on Arrow to take fish above Kington. Three Lugg fish passes modified by EAW below Kingsland. Modifications and removals on the Garren.
• 2011 EA Wales breaches and removes the weir at Kentchurch, opening up a huge spawning area on the Monnow system as a result.
• Weirs lowered on the Afon Lwyd (Usk tributary)
• 2011 Further improvements to upper Lugg and Arrow access with 8 more fish passes.
• 2012 Easements completed at Ffrwd, Berthin, Rhyd Y Meirch (Usk)
• 2013 Passes at Downfield and Mahollam (Arrow) completed and temporary easement at Dayhouse (Lugg).
T
Over 250 years of industrial activity and regeneration have heavily modified Telford’s urban catchments. Under the Water Framework Directive assessments the Lydebrook and Madebrook catchments are failing. Macroinvertebrates communities are fragmented and prone to local extinctions. The watercourses are overloaded with urban diffuse pollution via misconnections, road run off and the legacy of the townships industrial past. Water is a fundamental part of the green infrastructure of urban Telford , Shropshire Wildlife Trust have been championing the positive care of Telford’s green network for decades and now the two come together in the catchment based approach to urban diffuse pollution.
In close partnership with Telford and Wrekin Council, Severn Trent Water, Severn Gorge Countryside Trust, local community groups and with the support of the Environment Agency we are working to lift the fortunes of the two catchments.
'''Description of Works'''
The Lydebrook catchment has been massively disrupted by industrial activity. Where we can get access to the water we are planning to install new aquatic vegetation to help self-clean the water, work on riverside trees and hedges to reduce sedimentation from erosion and improve ground cover. Hedge laying has been used to address erosion, pre-planted coir rolls utilised to create new wetland edge to provide habitat and water cleansing capacity to the series of balancing pools and channels. The interventions are targeted at three balancing pools and short stretches of stream channel. In the headwaters area we shall be investigating the potential of a SuDS system to treat road-off.
On the Madebrook catchment we are designing and installing four new rock cascades to improve oxygenation and ecological connectivity. Over 400m of de-culverted watercourse will be created through the Madebrook and Stirchley Dingle proposed Local Nature Reserve. The new watercourse will be allowed to naturally re-vegetate and strengthen the isolated aquatic community found on this section of the much modified water course. The new channel will include features to encourage educational access, promote stream dynamics and enhance invertebrate populations. We are also working with Telford Angles Association to improve disable angling access.
We will be promoting the Retro fitting of SuDS in urban Telford in a number of ways. Working with RICOH ltd we aim to have a small scale SuDS feature fitted, we are exploring SuDS feasibility at the Halesfield Industrial Estate via a PhD research project and we are working with the BESST network via their seminar programme to promote wise water management to their members.
Volunteers are integral to the Trust approach and the CRF project will see volunteers leading the sampling and monitoring and carrying out small scale remedial works throughout both catchments. Our Education Team are developing a ‘River Rangers’ school resource which is being trialled through two schools (one per catchment). The schools scheme includes exploring their local water course, conducting a school water audit and finally designing and with our support constructing their own rain garden or other SuDs feature. All the community consultation in regard to the engineering works is being supported by more general community events to promote and engage local residents in the care of the rivers and streams in their neighbourhood.
Increase community awareness of urban catchment challenges.
I
Over a length of 11 kilometres between Rabafüzes and Vasszentmihaly, 21 measures were carried out in the Lahn-patak. In this straight and biologically impoverished section of the Lahn-patak bends, bays and peninsulas were constructed so that the brook would have a winding course. Serpentine bends and curves were excavated in which the brook now flows. The remnants of the old straight bed were sometimes kept as backwaters, or were simply filled with soil to become peninsulas. The soil excavated from the new bends and bays was used to build these peninsulas. Gravel was used to create shores and islets in the new course of the brook. Along the banks trees and shrubs were planted, 15 metres deep along 10 kilometres, in order to provide shade for the brook. +
R
Over the last 2 years we have been working in partnership with Coca-Cola to improve the health of the River Nar, in the Norfolk countryside, which is a site of special scientific interest, and in the healthiest stretches, is home to otters, water voles, trout and kingfishers. Please watch the video by clicking on the photo on the left.
The first river restoration project working with this partnership was at Mileham, which was completed in October 2012. The new sinuous channel travels through Mileham Common and into a meadow on a neighbouring farm. The highs and lows of the land change the depth and width of the river channel, this gives the new floodplain new habitat niches with varying wetness. These areas will give different species of flora and fauna unique habitats to thrive. +
L
Over the years, heavy hydraulic works were carried out on the Lagonnet River, such as straightening and widening of the river course, causing habitat depletion and lowering of the water table.
The main goals of the restoration activity were to restore the morphology and functionality of the river and to improve the habitat diversification.
A preliminary assessment, carried out in 2001, has defined the technical goals: to improve the longitudinal and cross section profile diversification,
to define a narrower flow section (especially in low water) and a sequence of riffles and pools.
The reactivation of the river dynamics allow to keep the restoration results on the long term.
The works included the installation of 24 sills and 239 groynes (in blocks or wooden). Berms are also created along 250 m and blocks are put in place on the riverbed.
The maintenance of 2687 m of riparian forest and new plantation along 1400 m of river banks were carried on. +
H
Overall aims included:<br>- Increase survival rate of juvenile coarse fish by increasing amount of suitable habitat.<br>- Increase variety of in-channel habitat throughout the previously dredged section to provide habitat for juvenile and adult coarse fish.<br>Specific aims were:<br>- Create backwaters in low ground along the true right bank.<br>- Create new marginal habitat amongst areas of heavy siltation on the true right bank.<br>- Open up old ditch that used to flow in the smaller u/s weir pool.<br>- Add localised gravel shoals to the river bed.<br><br>Description of works:<br>- Creation of projections using coir rolls along line of silt deposition boundary, open at downstream end and lightly planted to create shallow marginal habitat for juvenile fish.<br>- Raise bed in localised areas using gravel shoals to add variety to instream habitat. Shoals should strengthen natural features where deposition is occurring naturally. Mitigate loss of water holding areas by creating backwaters.<br>- Use present low lying land and re-open old features that have become filled in and overgrown. New wetted ditch to provide alternative migratory route for coarse fish and extend type of habitat found in Bigely Ditch.<br>- If possible lower height of sluices at mill or footbridge. - Dredging in 1998 resulted in loss of habitat suitable for juvenile fish including loss of marginal habitat by siltation.<br>- Enhancements have potential to extend wet-woodland and increase potential water vole habitat. +
R
Revitalization, biodiversity protection and usage of the Vistula River oxbows; preventing degradation of Upper Vistula River Valley as an ecological corridor. +
Oxbows in Poland
Project: Revitalization, biodiversity protection and usage of the Vistula River oxbows; preventing degradation of Upper Vistula River Valley as an ecological corridor.
Oxbows in Poland Project: Revitalization, biodiversity protection and usage of the Vistula River oxbows; preventing degradation of Upper Vistula River Valley as an ecological corridor. Regulation carried out between wars and in 60s of the 20th century made the Upper Vistula River Valley lose its natural "wild" character. The river bed was straighten out, meanders were crossed by levees. Industry and agriculture development and water pollution resulting from it as well as sewage.
In frames of the project we taked comprehensive actions that was contribute to renovation and maintainance of oxbows values and strengthen their functions.
We taked investment, legal, educational, information and promotion actions. The main project goals was: maintainance and increase In biodiversity of the Vistula oxbows popularization of oxbows natural values and the idea of their protection increase of interests in the Vistula River valley as a recreation place , "human coming back to the Vistula River, the Vistula River promotion as an important natural refuge and ecological corridor , increase in public awareness of necessity of its protection gaining experience on renovation and revitalization of oxbows The project is going to be realized on the part of Vistula River that flows through Małopolska.
The project was implemented in cooperation with Institute for Nature Conservation of Polish Academy of Sciences in Kraków.
INC tasks will be as fallows: supervision on the oxbows revitalization actions and some of works connected with detailed nature inventory of the Vistula River Valley. +
D
PHASE 1: 2000 - Temporary diversion of the Nith to the north west of its current floodplain to allow for coal extraction by Scottish Coal.
The Nith is an important salmon and trout fishery, however overgrazing, agriculture and past open-cast mining along the reach have affected invertebrate populations and fish spawning grounds.
The primary restoration criteria for the 2000 restoration were:
- design which would convey a 1 in 50 year flood.
- channel which would not dry up during low flow.
- design mimicing pre-diversion channel - ie. similar meander loops, pool-riffle-run sequences and channel profiles.
- design which would create opportunities for enhancement of biodiversity (over and above pre-diversion conditions).
Work commenced in April 2000 and was completed during September of the same year.
PHASE 2: During 2004, the former course was enhanced and reconnected to the rest of the river and the temporary channel cut off to allow mining to progress across the floodplain. The site was subject to significant post-restoration biological monitoring as part of a PhD programme through CRESS (Centre for River Ecosystem Science - University of Stirling) - to ensure the new channel was performing well, ecologically.
2000: channel bed/ground layer consisted of existing substrate with clay lining. 2004: Geotextile reinforcement of banks, to reduce bank erosion. Clay mattress lining to prevent water percolating through unconsolidated substrate and flowing as groundwater through potentially contaminated mine tailings. Gravel added to bed to create habitat diversity for invertebrates and fish. 2000: Containment bund constructed to prevent flooding of mine workings. +
P
Padgate Brook lies to the east of Warrington town centre (Map 1). It is a small watercourse which feeds into the River Mersey. The brook has been subject to a number of alterations over the years to reduce flood risk. One of the main changes was to straighten and deepen the brook through the Twiggeries and construct flood embankments along both banks. This effectively cut off the brook from the adjacent floodplain (Photo 1 and Appendix 1).
As part of the Warrington Flood Risk Management (FRM) Scheme, Padgate Brook has been restored to a more natural course and the embankment along the left bank has been removed. This has created a more natural river system and allows water to spill onto the floodplain on a regular basis. This approach has improved the level of flood protection for the surrounding properties to a 1 in 100 year level and has restored 5ha of reedbed. Key facts: the scheme has reduced the risk of flooding to over 200 properties; the natural approach fits in with the character of the site avoiding the use of heavy engineering in a green space; maintenance requirements have been significantly reduced by creating a self-cleansing channel and using a wildflower mix on the set back embankment; restored 500m of the watercourse and 5ha of reedbed; created a sustainable FRM system. +
F
Part of the integrated river basin management for the Emscher Region (865 km<sup>2</sup>, 2.700 inhabitants/ km<sup>2</sup>) is the revitalization of the river Emscher and its tributaries. Due to industrialization the waterbodies were systematically developed as open wastewater sewers in the beginning of the 20th century. Economic and technical alternatives such as closed sewer systems could not be implemented due to constant subsidence caused by coal mining.
Momentarily, the river system is being restructured in order to enable the Emscher to once again be a fully functioning, continuous water-based ecosystem with typical topology and vegetation.
An ecological concept based on the assumption of a non-interrupted river as a connection from the source to the mouth has been developed.
Studies on the feasibility of restructuring the Emscher show, that due to coal mining, industrial impacts and population changes the “original” conditions can never be reached again. It will not be possible to return the Emscher to its original, meandering state. Therefore, the reference conditions are no direct goals for the river restoration, but they give orientation in the planning procedure.
One of the first hot spots that has been put into practice is the HRB Ickern-Mengede.
The HRB comprises an area of 30 ha, where a typical lowland river with natural substrats, features and vegetation can be formed. A varied mosaic of biotopes, which are typical for floodplains (alder floodplain forest, sedge, typha and phragmites reed, floodgrass and potamogeton) is expected to develop. Most importantly, the basin can hold a volume of 1,1 km<sup>3</sup> to protect the downstream riparian communities. After the ecological restoration of the Emscher basin, it won't be able to discharge floods as quickly, hence the upstream flood protection must be enhanced.
Two million m<sup>3</sup> of native soil had to be excavated. 450 000 m<sup>3</sup> of this have been used to build a landscape monument between the basin and the close highway, thereby reducing noise pollution for the inhabitants of the basin and the close area. It has also been made accessible for the public as a lookout.
The river Emscher will be integrated into the basin, hence even smaller floods will reach the floodplain that has been created. Parts of the basin will be flooded about 80 days a year. Since the bottom of the HRB is uneven, parts of it will constantly be a body of standing water, whereas some elevated parts will be islands even during high floods.
This diversity of topologic forms will lead to a great diversity in habitats - and therefore species.
As of now, the basin is still divided into three smaller parts by the dyked Emscher, because it needs to be separated from the wastewater which the Emscher is still carrying. Only during high floods diluted wastewater will run over the dykes to flood the basins. Once the wastewater is fully removed from the river, there will be a slight remodelling of the basins (removal of the dykes), thus creating the possibility for the river to mold its own body and have access to the floodplain.
Public participation process during the planning phase, 2006 a public workshop was organised by the EG on the design aspects of the construction (e.g. bike trails).
S
Part of the integrated river basin management for the Seseke Region (315 km<sup>2</sup>) is the revitalization of the river Seseke and its tributaries. Due to industrialization the waterbodies were systematically developed as open wastewater sewers at the beginning of the 20<sup>th</sup> century. Economic and technical alternatives such as closed sewer systems could not be implemented due to constant subsidence caused by mining.
The river system will be restructured, so that the Seseke will become a fully functioning, continous water-based ecosystem with typical topologies and vegetation.
Studies on the feasibility of restructuring the Seseke show, that due to coal mining, industrial and population changes the “original” conditions can never be reached again. It will not be possible to return the Seseke to its original, meandering state. So the reference conditions are no direct goals for the river restoration, but they give orientation in the planning procedure. +
U
Part of the integrated river basin management for the Emscher Region (865 km<sup>2</sup>, 2.700 inhabitants/ km<sup>2</sup>) is the revitalization of the river Emscher and its tributaries. Due to industrialization the water bodies were systematically developed as open wastewater sewers in the beginning of the 20<sup>th</sup> century. Economic and technical alternatives such as closed sewer systems could not be implemented due to constant subsidence caused by coal mining.
Momentarily, the river system is being restructured in order to enable the Emscher to once again be a fully functioning, continuous water-based ecosystem with typical topology and vegetation.
An ecological concept based on the assumption of a non-interrupted river as a connection from the source to the mouth has been developed.
Studies on the feasibility of restructuring the Emscher show, that due to coal mining, industrial impacts and population changes the “original” conditions can never be reached again. It will not be possible to return the Emscher to its original, meandering state. Therefore, the reference conditions are no direct goals for the river restoration, but they give orientation in the planning procedure.
The upper Emscher is a small river, in parts still a creek of a little more than 12 km in length. Its source is located in a small forest south of Dortmund. Flowing northwards the restored waterbody passes fields, shrubs and several towns/quarters of Dortmund as well as smaller industrial parks. Due to the many restrictions by buildings or infrastructure several box-culverts with natural substrates had to be built. The longest in Dortmund-Aplerbeck has a length of 120 m. Since there was hardly any space at all, the culvert and the sewage pipes were constructed more or less simultaneously, placing the culvert on top of the pipes.
Several flood water detention basins have been constructed along the watercourse. The biggest of which, the " [http://www.dortmund.de/en/leisure_and_culture/phoenix_see_1/index.html Phoenix-See] " (Phoenix-Lake), is mostly used as recreation area. Bicycle and pedestrian paths as well as a harbour for sailing boats have been placed in and around the Lake.
Because of the restrictions the Emscher is usually not meandering, but mostly in a more or less woven bed which has been sharply incised during the beginning of the 20<sup>th</sup> century. Except for the part parallel to the Phoenix-Lake and the many urban areas restricting the width and natural dynamics, natural succession can be allowed (sometimes only in the meadow, not on the slopes), thus creating different habitats of alder forest, <i>Typha</i> and <i>Carex</i> reeds, sedge, floodgrass and <i>Potamogeton</i> in the compensatory floodplain.
A
Aesthetic vs. functional restoration of urban and peri-urban rivers: the Manzanares River in Madrid +
Peri-urban reach
• Improvement of environmental flow regime: the environmental flow regime should be optimized to allow for a better river dynamics. The discharge of episodic controlled floods could be
capable of regenerating the riverbed and improving the
solid transport (Magdaleno, 2017). The characteristics of
these floods have been designed and proposed to the water
authorities.
• Rescue and transfer of native ichthyofauna such as barbel (Luciobarbus bocagei), Iberian
nase (Pseudochondrostoma polylepis) and Iberian gudgeon
(Gobio lozanoi).
• Increased complexity and hydraulic diversity by using materials of coarse granulometry
at certain sections, favoring the generation of
optimal erosion and sedimentation patterns.
• Forestry works and removal of exotic vegetation: These
works include the cutting of dry or dying vegetation, or
the pruning of specimens that require an improvement in
their structure or that have risks for the visitors. Also ailanthus –Ailanthus altissima-, box elder –Acer negundo- and false acacias –Robinia pseudoacacia- will be removed.
• Restoration of riparian vegetation on the river banks, the margins, the floodplain and the distal areas.
• Removal of excessive patches of helophytic species in the channel. Reed species -Phragmites australis- and narrowleaf cattail –Typha angustifolia- will be removed.
• Removal of obsolete transversal works and artificial barriers: the remains
of an old gauging station, and some sedimentary heaps (with
a total volume of 10,000 m3) accumulated in the channel
which are creating large backwaters, and which have been
colonized by pioneer vegetation will be removed.
• Construction of fish ramp.
• Removal of landfills in the riparian areas to
recover a certain degree of naturalness in the transversal
profiles of the channel, which are now very much incised. the newly
created surfaces will be re-vegetated, using plant propagules
from the area.
• Improvement of trails. Also different signs and educational materials will also be installed for visitors.
Urban reach
The progressive opening of the regulatory gates of the Manzanares River. The first effect of this opening was the reduction of the artificial depth of the dammed river
(close to or greater than 2 m), the recovery, after decades
of complete immobility, of sediment transport and the reappearance
of a wide number of species of fauna and flora associated
with the recently created fluvial forms. The creation
of sandy islands and bars along the urban reach, and their
rapid colonization by natural vegetation, has accelerated the
change of the fluvial landscape. The City Council plans, at this moment, the creation of bioengineered
slopes in the banks formerly covered by rip-raps,
the planting of riparian species in the upper part of these
slopes, and some other landscaping and environmental
design project (such as the creation of a fish pass in one of
the regulatory gates, the reintroduction of native ichthyofauna,
or the creation of a fish breeding centre, among others).
P
Phase 3 of the Peffery Project is just a small part of a larger strategic project aimed at improving in‐stream and riparian zone habitat in the Cromarty Firth Area. The MFTI is working with Cromarty Fisheries (CF) and
Forestry Commission Scotland (FCS) to develop collaborative projects across the area. In September a
project began with the Forestry Commission to trial and quantitatively monitor the effects of introducing
LWD along a 2km stretch of the Strath Rannoch River. This will also to be accompanied by bank side
planting with 16,000 deciduous native trees at sites where the commercial forestry has been pulled back to
create the required buffer strip at 3 sites (Strath Rannoch, Alness Blackwater and Balnagowan) . The
Forestry Commission is supplying the trees while funding has been secured from the Nineveh Trust to fund
the planting of the trees. +
A
Planned objectives:<br>
• Potential to improve conveyance and reduce sedimentation and improve the ecology of the Beverley Brook.<br>
• Potential to undertake river restoration in areas where the Beverley Brook has previously been re-sectioned or modified, and where it currently flows through areas of open space.<br>
• Potential to remove areas of old or redundant bank protection/structures and re-naturalise the channel banks.<br>
• Potential to undertake habitat creation or enhancement works.<br>
Objectives carried out (2012):<br>
Flood and coastal risk management scheme to repair tidal sluice incorporating fish pass and reedbed.
At the lower section of Beverley Brook the flow is diverted into a series of culvert which outfall into the Thames and only 20% of the flow continues down the main channel. As a result the flows are low and there is a lot of siltation and lack of inchannel processes. Drivers: Biodiversity Action Plan, Water Framework Directive. +
F
Potential for deculverting of Loxford Water in park. Loxford Water is heavily urbanised, degraded and a in a concrete culvert for the most of its length. +
E
Potential for deculverting on back of development. Concept stage. +
W
Potential for in-channel habitat enhancements so long as flood risk not increased. Concept only. +
M
Potential for realignment and habitat management. This will improve visibility, amenity value, fisheries and biodiversity. Part of the Bonesgate tributary. +