DELIVERING WFD OBJECTIVES
Delivering WFD Objectives | 1
Our hydromorphology and fisheries experts sit within our Catchment and River Restoration Team - a skilled, multi-disciplinary team of specialists in the fields of ecology, engineering, geomorphology, hydrology, GIS and modelling. They work together to offer a range of services for individual projects as well as in support of the Water Framework Directive (WFD). The projects highlighted throughout this resource show the services we can help you with, from project inception to project delivery and implementation. Our teams have considerable experience of working with both the private and public sectors, offering innovative and pragmatic advice to help you find practical solutions to complex projects. Their practical experience of the regulatory viewpoint is often very valuable and helps drive efficiency into our project delivery.
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Contact us Environmental Services steve.maslen@jbaconsulting.com Head of Environment 01274 714 269 Fluvial Geomorphology/Hydromorphology matthew.hemsworth@jbaconsulting.com Lead Hydro-geomorphology 01675 437750 Fisheries jonathan.whitmore@jbaconsulting.com Lead Hydro-Ecology 01274 714 269 www.jbaconsulting.com @JBAConsulting JBAConsulting
CONTENTS
RIVER BLYTHE RIVER RESTORATION PLAN
RIVER KENT CATCHMENT FLUVIAL AUDIT RIVER WEST ALLEN SEDIMENT ASSESSMENT
06
COAL AUTHORITY WEIR DESIGN AND CONSTRUCTION
09
04
RIVER EDEN WEIR REMOVAL FEASIBILITY STUDY
07
TEMPLEBOROUGH DETAILED DESIGN
10
05
FISH PASS DETAILED DESIGN
08
THE JBA WAY
11
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FLUVIAL GEOMORPHOLOGY/ HYDROMORPHOLOGY PROJECT 1 | RIVER KENT CATCHMENT FLUVIAL AUDIT LOCATION: River Kent Catchment, Cumbria CLIENT: Environment Agency The December 2015 flood events caused significant geomorphological change in Cumbrian river catchments. We were commissioned by the Environment Agency to document and map key geomorphological changes within the River Kent catchment in Cumbria.
WHAT WE DID • Full fluvial audit of the River Kent and its tributaries • Mapping of key sediment sources, such as river bank erosion, eroding valley side bluffs and land slips • An assessment of the future risk of increased flooding as a result of increased sediment delivery within urban areas.
BENEFITS TO THE CLIENT • Experienced Geomorphologists • Increased post fieldwork efficiency with our GISmapp field data collection tool • Produced maps to improve understanding of catchment processes.
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HOW WE CAN SUPPORT YOU
FLUVIAL GEOMORPHOLOGY/ HYDROMORPHOLOGY
Being experts in river restoration design, geomorphic interpretation and hydraulic modelling, we understand geomorphological processes in different fluvial environments. •
Catchment baseline surveys provide the context required to ensure regional integration and sustainability of proposed management options.
• Fluvial audits improve understanding of sediment budget and channel stability on a reach-by-reach scale. • Analysis of hydraulic and sediment dynamics quantifies the extent of on-going or potential sediment problems.
PROJECT 2 |
• Catchment scale vision helps restore the functioning/structure of river forms and processes that are characteristic of particular river types.
LOCATION: River West Allen, Northumberland
• Channel restoration design based on current best-practice methods ensures designs are innovative and sustainable but practical. • River rehabilitation is used to improve riverine habitat diversity and overall condition. • Options appraisals assess the potential impacts/assist in the design of proposed floodplain or channel works. • Post-project appraisal, including process and form monitoring, develops effective evaluation.
RIVER WEST ALLEN SEDIMENT ASSESSMENT CLIENT: J N Bentley and Coal Authority We investigated ways to reduce and control contaminated sediment entering the River Allen in Northumberland. The contaminated sediment originates from old Lead and Zinc mines. 20% of the total load of metals entering the Tyne Estuary every year originates from within the River Allen catchment.
WHAT WE DID • Fluvial geomorphological assessment to map key sediment sources • Hydraulic modelling to understand sediment transport • Options development and Multi Criteria Analysis (MCA).
BENEFITS TO THE CLIENT • Robust solutions to slow down and stop contaminated sediment entering the river • Promotion of green engineering solutions • Use of our multi-disciplinary teams.
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FLUVIAL GEOMORPHOLOGY/ HYDROMORPHOLOGY
PROJECT 3 | RIVER BLYTHE RIVER RESTORATION PLAN LOCATION: River Blythe Site of Special Scientific Interest (SSSI), Warwickshire CLIENT: Environment Agency and Natural England A restoration plan and long term vision for the River Blythe SSSI was developed. The River Blythe is an exceptional and rare example of one of Britain’s seminatural lowland rivers on clay, supporting a diverse range of flora and fauna.
WHAT WE DID • Identified physical modifications which impact the geomorphology and ecology of the river • Produced a restoration plan for the whole river on a reach by reach basis • Identified mechanisms to deliver river restoration solutions.
BENEFITS TO THE CLIENT • Experienced team of ecologists and geomorphologists • Use of our field data collection tool GISmapp which increased post fieldwork efficiency • Integration of hydromorphology with site specific fisheries ecology to generate impact assessments following hydromorphological modification. 6 | Delivering WFD Objectives
FLUVIAL GEOMORPHOLOGY/ HYDROMORPHOLOGY
PROJECT 4 | RIVER EDEN WEIR REMOVAL FEASIBILITY STUDY LOCATION: River Eden, Cumbria CLIENT: Eden Rivers Trust We investigated the feasibility of several weir removals within the Eden catchment in order to allow the free movement of migratory fish and improve in channel geomorphological conditions.
WHAT WE DID • Fluvial Geomorphological Walkover of the study reach • Hydraulic modelling to assess flood risk changes, and changes to sediment erosion and deposition • Development of post removal options.
HOW WE CAN SUPPORT YOU • Hydraulic habitat assessment - qualitative assessment of the hydraulic habitats that are present to form a baseline for WFD compliance.
BENEFITS TO THE CLIENT • Multi-disciplinary team • Technically robust solution.
• Fluvial Dynamic Audit - expert assessment of the present and likely
future dynamics of a water body linked to proposed interventions. This in turn is linked to the need to demonstrate system stability in line with the WFD requirements.
• Expert assessment of the impact of intervention on system hydromorphology based on likely geomorphic change and natural river analogues. • Quantitative 2D modelling of current and potential future hydraulic habitats allowing comparison of the effects of intervention to be evaluated. • Informed input to current restoration practice aligned with assisted natural recovery principles.
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FISH PASS DESIGN PROJECT 1 | FISH PASS DETAILED DESIGN LOCATION: Nine sites across Yorkshire CLIENT: Yorkshire Water Services Yorkshire Water were committed to the implementation of fish pass solutions at nine weirs within the Yorkshire Region to help meet WFD objectives.
WHAT WE DID • • • • •
Preliminary Ecological Appraisal Specification of intrusive ground investigation and PAS128 utilities surveys Temporary deployment of accessible in-situ water level recorders Flood risk modelling Detailed hydraulic and structural design, including measures to allow safe maintenance.
BENEFITS TO THE CLIENT • Ensured risks to health and safety were considered and designed out where possible, under the Construction Regulations 2015. • Minimised interference with retrofitted PIT tag monitoring equipment with non-metallic reinforcing bar. • Integration of hydromorphology with site specific fisheries ecology to generate impact assessments. 8 | Delivering WFD Objectives
HOW WE CAN SUPPORT YOU FISH PASS DESIGN
We can provide experienced technical specialists who fully understand all the relevant design and approval processes, to ensure an efficient transition from concept to site. •
A broad range of specialists, including Ecologists, Fluvial Geomorphologists, Hydrologists, Landscape Architects and heritage experts, ensure every site constraint is well understood and considered in the design process.
• Services from concept and optioneering stage to construction supervision can be provided.
PROJECT 2 |
•
LOCATION: Nentberry, River Nent CLIENT: J N Bentley
Technical experts lead informed engagement with regulatory staff - our Lead in Hydroecology and Technical Director, who reviews our hydraulic design outputs, comes with 10 years’ experience of working within the Fisheries function of the Environment Agency, and 10 years’ experience in environmental consultancy.
COAL AUTHORITY WEIR DESIGN AND CONSTRUCTION
In attempting to minimise the environmental legacy of mining operations in the catchment, the Coal Authority appointed JN Bentley to design and build a series of check weirs on the River Nent. The aim was to promote the inchannel settlement of potentially contaminated sediments with the objective of facilitating their dredging and removal from the river system in the future.
WHAT WE DID • Hydraulic modelling • Detailed hydraulic design of the solution.
BENEFITS TO THE CLIENT • •
Secured Environment Agency approval for the technical fish pass solution within four weeks of appointment A technically robust solution in keeping with the upper catchment, rural setting of the site.
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FISH PASS DESIGN
PROJECT 3 | TEMPLEBOROUGH DETAILED DESIGN LOCATION: Rotherham, South Yorkshire CLIENT: BRITE Partnership As a condition of planning approval for construction of a biomass power station on the River Don in Rotherham, our client was required to construct measures to improve fish passage over a weir immediately adjacent to the site.
WHAT WE DID • • •
Flood risk modelling Developed detailed hydraulic and structural design of a Larinier fish pass Secured local Environment Agency approval for the technical fish pass solution.
BENEFITS TO THE CLIENT • •
Efficiency savings with our ablity to design coffer dam temporary works for the abstraction point. Our 3D modelling capability enables robust design of scour protection measures associated with the abstraction point.
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WHO WE ARE With over 20 years’ experience, JBA Consulting is part of the JBA Group - an independent specialist flood and environmental consultancy employing over 450 staff, in 21 offices, in 9 countries around the world. We provide specialist water, environmental, engineering and risk management services across many different sectors through our world-leading technical expertise.
WHY CHOOSE JBA It is our commitment, drive and agility to innovate that sets us apart – we understand that the best innovations integrate the skills, knowledge and experience of others. At our core is the ethos of working collaboratively – our innovations are conceived of and developed in close collaboration with our clients so that they focus on real needs. Being independently owned for more than 20 years has provided us with the freedom to invest in ways consistent with our ethos. This is defined by “The JBA Way”:
WORK COLLABORATIVELY
EMBRACE CHALLENGE
INNOVATE, EVERY DAY
CREATE CUTTING EDGE SOLUTIONS
BE A PARTNER OF CHOICE
WORK SMARTER
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Contact us Environmental Services steve.maslen@jbaconsulting.com Head of Environment 01274 714 269 Fluvial Geomorphology/Hydromorphology matthew.hemsworth@jbaconsulting.com Lead Hydro-geomorphology 01675 437750 Fisheries jonathan.whitmore@jbaconsulting.com Lead Hydro-Ecology 01274 714 269 www.jbaconsulting.com @JBAConsulting JBAConsulting 12 | Delivering WFD Objectives