Sheffield Wildlife Trust Treeton Waverley
Case study
Sheffield Wildlife Trust Treeton Waverley
Treeton Waverley habitat and watercourse works for Sheffield Wildlife Trust
Scope
On the outskirts of Treeton and Waverley, the River Rother winds alongside Catcliffe Flash Nature Reserve. Having been extensively straightened through industrial use and disconnected from its floodplain, the aim of the project was to re-establish approx. 1km length of the river to a more natural form.
Working in partnership with designers and the Environment Agency, Sheffield and Rotherham Wildlife Trust developed a design. Using a series of berm, or bench, features and bank re-profiling flow conditions along the river were to be altered together with the installation of pre-seeded erosion control matting to the re-profiled banks. Footpath re-positioning and public access were also key features. Further improvements are also planned to the Orgreave Weir to improve fish passage.


Key Aspects
Given the river is located within developed areas alongside a wildlife nature reserve it was necessary to access the site from a main road with heavy plant and machinery in a very carefully controlled manner to minimise any impact on the surrounding environment.
Located in a suburban area on the boundary between Sheffield and Rotherham, close to the M1 motorway it was also necessary to liaise with the various authorities to ensure compliance with all the necessary permits and legislative obligations.
Visitors to the nature reserve, river and fishing pegs during the period were not restricted and due care had to be taken, particularly to dog walkers and animals off the lead.





Challenges
Utilities Liaison
Following surveys, certain utilities were found to be present and in particular overhead power lines posed issues, which needed to be accommodated.
Segregation
Works often entailed footpath restrictions and diversions to protect or segregate the public whilst maintaining good relationships with visitors to the reserve. Communication of any anticipated inconvenience was undertaken at the earliest opportunity as part of the project programming.
Health & Safety
All workings were carried out compliantly under CDM 2015 protocols requiring Construction Phase Plans together with comprehensive assessment of all risks and method statements to minimise risks for all work elements.
Sweeting Bros Ltd are unique in that we have invested in mountain rescue sleds and equipment to facilitate patient evacuation in the event of an accident. Our work is often in secluded, inaccessible areas with very poor ground conditions such that ambulances or a helicopter may sink.
Biosecurity & Environmental Concerns
Moving machinery from one property to another often requires biosecurity and environmental protocols to minimise transfer of contaminants or invasive species such as black grass. This is particularly important when working in protected sites such as conservation areas, nature reserves or Sites of Special Scientific Interest (SSSI).
Working with Water
Working in or around water poses hazards for employees arising from the natural environment. The presence of vermin and exposure to leptospirosis twinned with the possibility of drowning, all add to the normal risks involving accidents concerning machinery and moving parts.
Pumping out of accumulating / rising ground water is often necessary to ensure safe working conditions.
Monitoring weather conditions and anticipated rainfall all play key factors in programming and delivery of the project.


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