Dredging plays a critical role in maintaining the navigability and ecological health of rivers, canals, harbours, and other waterways. Whether you're involved in a large-scale marine development or managing a local canal, understanding the duration of a dredging project is essential for proper planning and budgeting. However, the time it takes to complete a dredging project can vary greatly depending on several factors, including the scope of the project, the method of dredging, the location, and the specific environmental conditions. In this guide, we’ll explore the typical timeframes for dredging projects and the factors that can influence their duration, helping you to better understand what to expect when planning such an endeavour. 1. Types of Dredging Projects and Their Timeframes The duration of a dredging project depends largely on its size and complexity. Small-scale dredging jobs, such as those conducted on a small river or local canal, can often be completed in a matter of weeks. Conversely, large-scale dredging projects, such as those undertaken in busy marines or deep-water, often managed by specialist dredging companies, may span several months. Here's an overview of typical project timelines for different types of dredging: Small-scale Dredging : Projects such as cleaning sediment from a small pond, river, or local waterway typically take between 2 to 6 weeks. These types of jobs require less dredging machinery and fewer dredging service providers, making them quicker to complete. Medium-scale Dredging : Dredging of larger bodies of water, such as small ports or canal maintenance, can take anywhere from 2 to 6 months. This depends on the depth of dredging required and the volume of material that needs to be removed. Large-scale Dredging : Projects at major harbours, shipping lanes, or large river systems can take anywhere from 6 months to several years. These operations often require substantial equipment, environmental assessments, and coordination with local authorities. 2. Factors That Affect Dredging Project Duration Several factors come into play when determining how long a dredging project will take. Here are some of the most important considerations: a) Size and Depth of the Area to Be Dredged The larger and deeper the area to be dredged, the longer the project will likely take. Shallow dredging projects, which involve removing smaller amounts of sediment, can be completed relatively quickly. In contrast, deeper dredging operations that require the removal of larger volumes of material or access to the bottom of the waterbody can take much longer. b) Type of Material to Be Dredged The type of sediment, silt, or debris being removed from the waterway also impacts the duration of the project. Softer materials, like sand or mud, are easier and quicker to dredge, while harder materials, such as rock or clay, can take longer to remove. Contaminated sediments, which require careful handling and disposal, may also extend the timeline. c) Dredging Method Used The method employed for dredging can significantly influence how long the project takes. Some of the most common methods include: Mechanical Dredging : Using large bucket-equipped machinery, such as backhoes or excavators, this method can be quicker for smaller areas but may be slower for larger, deeper projects. Hydraulic Dredging : This method uses suction to remove material from the water and is particularly useful for large, deeper projects. While effective, hydraulic dredging often requires more time for setup and mobilisation. Cutter Suction Dredging : This advanced method uses a rotating cutter to break up the material and suction it out, making it suitable for hard-to-reach or compacted areas. It is more time-consuming due to the intricate equipment involved. d) Environmental and Regulatory Factors Environmental considerations and regulatory requirements can add significant time to the dredging process. For example, projects near sensitive ecosystems (such as wetlands or protected marine environments) may require extensive environmental impact assessments (EIAs) and mitigation strategies. These additional steps can delay the start or prolong the duration of the project. Permits and consultations with local authorities also contribute to the timeline, especially if there are concerns about wildlife, water quality, or the local community. e) Weather Conditions Weather plays a crucial role in the timing of dredging operations. Unfavourable weather conditions, such as heavy rainfall, strong winds, or freezing temperatures, can delay the project. Working in conditions where the weather is unpredictable or hazardous may slow progress, especially in open water or remote locations. 3. Project Phases and How They Impact Timing A typical dredging project is broken into several stages, each with its own timeline. Understanding these stages helps clarify how long a project may take: Pre-Planning and Permitting : This initial phase can take several months as it involves consultations with stakeholders, obtaining necessary permits, and conducting environmental impact assessments. It is one of the most time-consuming steps. Mobilisation : Once planning is complete, mobilisation involves moving the necessary equipment, setting up the site, and preparing for the dredging itself. This can take anywhere from a few days to a couple of weeks, depending on the scale of the project. Dredging Operations : The actual dredging phase can vary greatly. Small to medium projects may take just weeks, while large-scale operations can stretch over several months. The duration depends on the depth, volume of material, and method used. Post-Dredging : After the dredging work is completed, the site must be inspected, and any residual materials need to be disposed of properly. Additionally, any damage to infrastructure or surrounding ecosystems must be repaired. This final phase can take a few weeks. 4. How to Manage Expectations for a Dredging Project Timeline It’s crucial to manage expectations when planning a dredging project. While smaller projects may finish in a short time, larger, more complex ones may encounter unexpected delays. Regular updates from waterway contractors , flexibility in scheduling, and clear communication with all stakeholders are essential for managing the project efficiently. Having a buffer period built into the timeline can also help accommodate unforeseen challenges, such as weather disruptions or equipment breakdowns. Conclusion The duration of a dredging project can vary considerably based on the size and complexity of the operation. Smaller projects might take a matter of weeks, while large-scale dredging jobs can extend over months or even years. Factors such as the type of material being removed, the method of dredging, environmental considerations, and weather conditions all influence the overall timeline. Understanding these factors and how they contribute to the project timeline can help in managing expectations and ensuring the smooth execution of the dredging process. Whether you're involved in a small canal cleanup or a large-scale development, having a clear understanding of the time involved is key to the successful completion of any dredging project. At The Rothen Group we have years of experience managing dredging projects, to find our more get in touch with out friendly team today.

Civil engineering is one of the oldest and most diverse branches of engineering, encompassing the design, construction, and maintenance of the built environment. From buildings and bridges to roads and water systems, civil engineers are involved in creating infrastructure that supports modern society. However, within this broad field, there are various specialisations, and one of the most fascinating is maritime civil engineering.  Waterway civil engineers focus on projects related specifically to waterways, such as rivers, canals, ports, harbours, and coastal infrastructure. This article explores the key differences between civil engineers in general and those specialising in waterway engineering, highlighting their roles, expertise, and the specific challenges they face. 1. The Role of Civil Engineers Civil engineers are responsible for designing, constructing, and maintaining the infrastructure that forms the foundation of modern society. They work on a wide range of projects, including: Buildings and Housing: Designing and overseeing the construction of residential, commercial, and industrial buildings. Transportation Infrastructure: Developing roads, railways, airports, and tunnels to ensure safe and efficient transportation systems. Bridges and Structures: Designing bridges, dams, and other large structures to support transportation, energy, and water distribution. Water and Wastewater Systems: Planning and constructing systems to manage the supply and treatment of water, as well as wastewater disposal. Civil engineers generally work across a broad spectrum of projects, applying their knowledge of materials, structural integrity, and environmental factors to meet the requirements of each project. They ensure that designs are both functional and safe, while also considering environmental sustainability and regulatory compliance. A civil engineer's expertise is wide-ranging, requiring them to understand various construction techniques, materials, and regulations across many different types of infrastructure. 2. The Role of Maritime Civil Engineers Waterway civil engineers, on the other hand, specialise in the design, construction, and maintenance of infrastructure related to water. Their focus is on projects that involve rivers, canals, harbours, ports, and coastal structures. Waterway engineers deal with the challenges of working in and around water and the impact of water on the built environment. Typical projects for waterway civil engineers include: River and Canal Infrastructure:  Designing and maintaining locks, weirs, and other structures that control water flow, ensuring navigation, flood control, and water management. Coastal Protection: Developing solutions to protect coastlines from erosion and storm surges, such as seawalls, breakwaters, and tidal barriers. Ports and Harbours: Planning and building infrastructure for maritime transport, including piers, docks, and cargo handling facilities. Flood Management: Designing flood defence systems, including levees, floodwalls, and retention basins to protect communities from flooding. Maritime engineers are experts in dealing with the complex interactions between water and infrastructure. They must understand the hydrodynamic forces at play in rivers, canals, and coastal areas, as well as the effects of tides, currents, and weather patterns. These engineers also work closely with environmental scientists to ensure their designs do not adversely affect ecosystems or local wildlife. 3. Key Differences in Skills and Expertise While civil engineers and waterway civil engineers share a broad foundation of engineering principles, their roles require different specialisms. Hydraulic Engineering:  One of the key differences is that maritime civil engineers must have a deep understanding of hydraulic engineering. This branch of civil engineering focuses on the movement and control of water, including the design of systems that regulate water flow. Waterway engineers need to understand how water behaves in various environments and how to design structures that can withstand the pressures exerted by rivers, tides, and waves. Environmental Awareness:  Waterway engineers often work in sensitive environmental areas, where there are strict regulations governing water quality, biodiversity, and conservation. They need to have a good understanding of environmental law and sustainability practices to minimise the ecological impact of their projects. Civil engineers, in general, must also consider environmental factors, but waterway engineers typically face more complex challenges in managing aquatic ecosystems. Coastal Engineering:  Waterway engineers often specialise in coastal engineering, which involves designing and maintaining structures that protect coastal areas from erosion, storm damage, and rising sea levels. This is an area where civil engineers with a more general focus may not have the specific knowledge required, as it involves expertise in tidal patterns, beach morphology, and the impact of climate change on coastal systems. Marine Construction Techniques: Waterway civil engineers frequently employ specialised marine construction techniques, such as working with barges, floating workboats , and underwater construction equipment. They may need to consider the effects of corrosion, marine growth, and sedimentation on their designs. Civil engineers working on land-based projects may not need to worry about these factors, as their work is not directly impacted by the presence of water. 4. Challenges Faced by Waterway Civil Engineers Maritime civil engineers face unique challenges when working on projects that involve water.  Some of these challenges include: Navigating Waterway Regulations: Waterway projects are subject to strict regulatory oversight, especially when it comes to environmental protection, flood management, and navigation safety. Engineers must work closely with local authorities, environmental groups, and government agencies to ensure compliance with these regulations. Adapting to Changing Water Conditions: Waterway engineers must design infrastructure that can withstand variable and unpredictable water conditions. River levels fluctuate due to rainfall and snowmelt, while coastal areas are increasingly affected by rising sea levels and extreme weather events. Engineers need to account for these changing conditions in their designs and be prepared for long-term changes brought about by climate change. Working in Challenging Environments: Waterway engineers often work in remote or difficult-to-reach areas, such as offshore locations, floodplains, or along riverbanks. This requires a combination of technical knowledge and practical problem-solving skills to adapt to challenging logistics and environmental factors. Impact on Ecosystems:  Waterway projects can have significant ecological impacts, such as disturbing local wildlife habitats, affecting fish migration, or altering water quality. Waterway engineers must work to design structures that minimise disruption and promote sustainability, often collaborating with ecologists and environmental scientists to develop solutions that protect the surrounding ecosystem. Conclusion While both civil engineers and maritime civil engineers work to improve infrastructure and public safety, maritime engineers possess a specialised skill set tailored to projects involving water, whether it’s rivers, canals, or coastal areas. They need a deep understanding of hydraulics, environmental issues, and marine construction techniques to design infrastructure that is durable, safe, and sustainable. In contrast, civil engineers work across a broader range of projects, however both specialisations play vital roles in shaping the infrastructure of modern society. Here at The Rothen Group, our expert waterway civil engineers are uniquely positioned to address the challenges posed by working in dynamic and often unpredictable aquatic environments. Get in touch today to find out more.

In the complex and sensitive environment of the UK’s inland waterways, getting engineering projects right the first time is more than good practice - it's essential. Whether it's bank stabilisation , dredging , or reed and weed management , the success of a project often hinges on decisions made in the earliest stages. This is where Early Contractor Involvement comes into play - a collaborative project approach that continues to deliver measurable benefits across the civil and marine engineering sectors. At The Rothen Group, we’ve seen first-hand how early involvement can transform waterway infrastructure projects, resulting in safer operations, reduced costs, shorter timelines, and improved environmental outcomes.  Why Early Contractor Involvement Matters in Waterway Engineering 1. Practical Solutions from Day One Waterway environments come with a unique set of constraints - limited access, fluctuating water levels, ecological sensitivities, and often, historical infrastructure. Involving a specialist and expert contractor early ensures that constructibility and on-site conditions are considered proactively, not retrospectively.  At The Rothen Group, our team regularly advises clients on optimal workboat deployment, plant positioning, safe access points, and the suitability of materials like coir rolls, steel piling, or gabion baskets - long before workboats hit the water. 2. Smoother Regulatory Approvals Inland waterway projects often require permissions from multiple regulatory bodies, including the Canal & River Trust , the Environment Agency , and local planning authorities. Contractors with experience in the field can offer valuable insight into the approvals process, helping to avoid pitfalls that could delay progress. By involving us early, clients benefit from our deep understanding of compliance requirements, sediment disposal regulations, and best practices for working within Sites of Special Scientific Interest or conservation areas. 3. Reduced Risk and Unexpected Costs Unforeseen ground conditions, access issues, or species protection measures can quickly derail even carefully planned projects. Early maritime contractor involvement allows for risk to be identified and addressed early, improving cost certainty and reducing the likelihood of change orders or programme delays. With decades of on-the-ground experience, The Rothen Group is adept at foreseeing potential challenges - whether it’s underwater obstructions, difficult bank profiles, or invasive vegetation - and planning accordingly. 4. Improved Safety Safety on and around water demands rigorous planning. By bringing a contractor in early, risk assessments and safe systems of work can be embedded into the design phase. This reduces the likelihood of accidents and ensures that health and safety considerations are not an afterthought but an integral part of the project plan. We bring a proven track record in water-based construction safety, including boat-based operations, piling near utilities, and working within confined towpath spaces. Expert maritime contractors at The Rothen Group allow us to suggest solutions that reduce exposure to hazards and enhance the safety of all operatives and stakeholders. 5. Enhanced Sustainability With growing emphasis on environmental performance and biodiversity, early waterway contractor involvement provides opportunities to incorporate sustainable construction practices from the outset. Whether it's reusing dredged materials, minimising carbon emissions through plant selection, or planning reed bed restoration, early input helps align project goals with green outcomes. The Rothen Group champions sustainable waterway practices. From composting removed aquatic vegetation to recommending low-emission equipment and hybrid workboats, we help clients meet environmental targets while delivering outstanding results. When Should You Engage a Contractor? The short answer: as early as possible. Ideally, the contractor should be part of the team during feasibility and design development. Whether you're preparing a tender, seeking planning permission, or refining project scope, having a specialist contractor involved gives your project the best chance of long-term success. Even at pre-construction or pilot stages, The Rothen Group can add significant value through practical advice, budget estimation, build sequencing, and programme planning. Get in Touch With The Rothen Group If you’re planning a waterway engineering project - whether it involves dredging, erosion control, piling, towpath enhancement, or vegetation management -  The Rothen Group is here to help. Our unique combination of civil engineering knowledge, floating plant hire, and practical waterway experience makes us the ideal partner for successful ECI-led delivery. Contact us today  to discuss how early contractor involvement can benefit your project. Together, we’ll ensure your scheme is delivered safely, sustainably, and to the highest standard.

With over 2,000 miles of canals and rivers in the UK , as well as marinas, lakes, ponds, reservoirs, wetlands and thousands of miles of coastline in need of careful management, keeping these waterways well maintained and clear of debris can be a constant challenge. A lack of proper care when it comes to such areas can lead to poor water quality and blockages, which in turn can result in biodiversity issues and boat users becoming stuck or stranded. Prioritising regular marine maintenance is therefore key, so by working with specialists who are able to clear waterways correctly, problems can be avoided before they begin. What is Canal Dredging? Dredging work clears the sediment and debris along the bottom of a body of water, whether it’s a canal, lake, river or marina. This process helps to manage the effects of climate change through flooding, drought and coastal erosion, as well as helping minimise the impact of urbanisation. Without carrying out dredging , stretches of water would soon become impassable for canal boats trying to navigate them. Left unchecked, sediment, silt and debris are naturally washed along, which means it can build up along key chokepoints, like river banks, and block access over time. For organisations using waterways for commercial and construction purposes, this could present operational problems, as failure to make deliveries may have financial implications or mean building projects can’t be completed. Those using the canal network for recreation and pleasure might also find themselves struggling to reach their destination, if certain sections of the network are impassable. While such scenarios are extremely limiting to boat users, they can also pose a risk to wildlife. For example, sediment coming from the outskirts of cities and industrial areas can often be contaminated with a variety of pollutants. These substances are a threat to plant life, as well as organisms living below the water’s surface, so it is essential these are effectively removed. Why is waterway dredging necessary? There are two core reasons for dredging, best described as maintenance dredging and environmental dredging. In the case of maintenance dredging, this process often focusses on maintaining or increasing the depth of navigation channels to allow the safe passage of boats. The UK is reliant upon its canals and rivers to transport heavy goods, which makes the network hugely important from an economic point of view. Ensuring that routine maintenance dredging projects are planned and carried out is therefore crucial, as vessels require a certain amount of water to float, and a build-up of sediment will interfere with this. In terms of environmental considerations, canals are unique ecological corridors which provide important habitats for wildlife in both urban and rural areas. Some hold important populations of nationally rare species of insects or plants, so preserving these is essential in protecting biodiversity in the UK. If pollutants are present in waterways, then the sediment in river channels and canals can become contaminated and harmful to these organisms. Removing this has a positive impact on water-dwelling life, creating better fish spawning grounds and generally leading to much healthier waterways. How is dredging carried out? A team of marine engineering experts, together with the correct canal dredging equipment, are both essentials when considering how best to tackle dredging. This is to ensure no damage is done to the bed of the canal or river as the excavator drags along the bottom. Canal beds are often sealed with puddling clay to prevent leakage, which has to remain intact for the canal to be functional. Piercing this would lead to further canal repair being needed. In addition to this, there are also culverts and underground services which must be taken into consideration when carrying out canal maintenance to avoid further waterway repairs. This is another reason why specialist equipment is an absolute necessity. For example, workboats called ‘dredgers’ have been specially designed to handle this process and can take multiple forms. They come in different sizes dependent on the project in question. Sites may have varying levels of access or requirements, so there are a number of versions available. For situations where operation from the bank or a boat is required, a long reach excavator is available. An excavator on a pontoon can also be booked in cases where steadying stability legs will be useful. As debris must be removed completely, crane or grab barges with clamshell buckets can pick this material straight out of the water. Amphibious diggers also offer an effective way to access and get rid of silt and debris. What is the cost of dredging a canal? The cost of dredging depends on a number of factors, making it impossible to provide a one price fits all approach. Factors, such as the complexity of the project, location and site access must all be taken into account – and as these can vary quite significantly, quotations for dredging work are developed on a case-by-case basis. If you have any further questions about dredging, or would like to know more about the services The Rothen Group can offer, please contact us on 01827 215715, or email info@therothengroup.co.uk

Our previous blogs have covered various forms of marine construction, including dredging and weed control . This article will expand on our previous piece on marine piling and take a closer look at the different types of pile driving equipment. This guide will run you through everything you need to know about piling by The Rothen Group. We will then go on to explain vibratory and hydraulic piling machines and why they are suited to piling projects. Marine piling – a definition A pile is a post-like object, often concrete, timber or steel, which is driven deep into the ground. Marine piling relates to driving these piles in a water environment, such as a canal or river. These provide the foundations for various construction structures, or stabilise banks. Sheet piling – a definition A common form of marine piling is marine sheet piling. This refers to a wall of interlocking sheets that prevent river and canal banks from collapsing. This supports waterway banks and ensures nearby construction and footpaths are structurally sound. Piling machinery There are a range of factors which need to be considered for piling. These include soil and water conditions, presence of nearby construction and type and weight of piles to be driven. What type of equipment is used depends on these variables. Marine piling is therefore one of the most complex environments in which this process can occur. Specifically, the pressure placed on these waterway structures and the challenge of manoeuvring around difficult territories requires the use of advanced machinery. Here at The Rothen Group we specialise in undertaking challenging projects and require a range of different piling equipment. Not only are we equipped with a range of piling machinery – we also ensure each pile and sheet pile hammer are of the highest quality possible for this specialised work. Hydraulic Piling Hammers A hydraulic pile hammer and a hydraulic sheet pile driver are modern versions of piling machinery. They produce less noise and pollutants due to the equipment’s efficiency than other piling hammers. These pilers provide for high precision and fast blows, perfect for installing steel, timber or concrete piling on the waterways. We offer three sizes of hydraulic impact piling hammers. These machines are highly versatile, and can run directly from the machines hydraulic system or a standalone hydraulic power pack. Being physically smaller and very efficient, they can be deployed to complete tasks in more challenging environments. This includes projects undertaken near sensitive structures or railway lines. Air Hammer Often used for canal and river restoration projects, air hammers are adaptable, hard-wearing and easy to operate. Depending on size, they are applicable to varying ground conditions, from soft to hard soil. They are also used when working adjacent to structures when vibrations could damage foundations. Consequently, they can be used in multiple applications, including the driving of H-section columns, mooring and jetty scaffolding. They are also used in the driving of light pile sections and fencing posts, alongside timber posts and piles, and steel tubes. Vibratory Pile Hammer This is one of the pile and sheet pile driving methods we employ. A vibratory pile driver piles by using spinning counterweights to generate vertical vibrations. These loosen the soil, reducing resistance and allowing the pile to move through the ground. This sheet pile driving machine has the ability to alter frequencies and amplitude to suit the soil type. We often employ vibro hammers for sheet pile driving. This is due to their rapid sheet pile installation, their ability to retract as well as drive and the reduced noise pollution. To complete every task and manoeuvre around difficult construction challenges we offer two types of vibratory pile driving hammer – excavator-mounted and free-hanging. Excavator-mounted Vibro Hammer These use an excavator to position a vibratory hammer over the pile, forming a piling rig. This piece of machinery has a very high power to weight ratio, with minimal height to maximise the pile length. Alongside this benefit, this hammer’s slim design makes it an effective piece of sheet pile driving equipment. Additionally, a vibratory hammer can be an economical option that allows for effective piling in deeper and tighter areas. By having this equipment readily available, we can ensure we have the capacity to complete any piling job. Indeed, we are equipped with a range of options in the vibratory hammer range, from the smallest EMV70 working off five to 12-tonne excavators to the EMV300 powered by excavators up to 25 tonnes. Free Hanging Vibro Hammer This pile hammer drives and extracts all types of piles, making it highly suitable for a wide variety of projects. Their ability to work around difficult terrain and waterways means they are ideal for quick and easy installations and fittings. Furthermore, their reduced noise levels when operational means they can be used in residential areas without the risk of noise complaints. For a construction project which requires piling, we would recommend you contact our specialist team, so we can undertake a site visit. By assessing the location, ground conditions and many other factors, we will be able to advise on which machinery should be used and provide a quote. Following the site visit, our skilled team can mobilise the machinery and operate within a few days to a week, ensuring projects are completed on time and on budget. If you have any further questions about piling machinery, or would like to know more about the services The Rothen Group can offer, please contact us today on 01827 215715, or email info@therothengroup.co.uk .

At The Rothen Group we pride ourselves on our capability to protect and preserve the British waterways. Following our blogs on preserving rivers and canals through weed control and marine piling , this piece will focus on dredging . We will walk you through the need-to-knows of dredging and the machinery used. From here we’ll go on to outline the benefits of dredging for the maintenance and preservation of canals and rivers across the UK. Dredging meaning The dredge definition is the removal of naturally deposited sediments, debris and overgrown vegetation from water bodies. This work helps tackle the challenges our UK rivers and canals face, largely due to climate change and urbanisation. River dredging and canal dredging is essential to removing sediment, which builds up at key waterway chokepoints affecting flow and navigability. Dredging is a very technical process. While high-quality dredging can effectively protect the natural ecology of water bodies, poorly executed work can cause irreversible damage. Furthermore, damage to a canal bed can cause leakage, which will cost significantly more to repair. It is therefore essential your first point of call is The Rothen Group for any of your dredging needs. Dredging machinery The excavation of deposits from waterways requires advanced equipment. The Rothen Group , for example, uses various specialised floating crafts to complete dredging work where the waterway bank sides are unstable. This is important, as this land may be otherwise unable to support heavy machinery. Instead, by using these specialised solutions, we can reach areas of the water which landed machinery may find inaccessible. Crane barges are also used for complex dredging operations, with boat-mounted equipment able to access more areas on the river or canal. Specifically, crane boats provide for effective dredging and are especially effective on deeper waterways due to their digging reach. From Kubota zero-tail swing excavators to the new 70ft Hiab Crane and Grab boat, we have a range of dredging equipment. Further information on the machinery used by The Rothen Group can be found i n our dredging guide . Dredging benefits The Rothen Group is fully equipped to carry out dredging operations and keep waterways healthy. You can read more about dredging guidance on the UK governments website, in relation to marine management. Navigation UK dredging provides safe navigation for boaters. This is because accumulated sediment and uncontrolled vegetation can stop vessels moving through canals and rivers. This, in turn, can lead to potentially dangerous situations. For example, built-up areas of sediment on river beds can create unexpectedly shallow areas, which poses serious problems for boaters. Furthermore, thick vegetation can threaten the mechanical components of the underside of a vessel, clogging the engine. The safe passage of boats therefore relies on navigational dredging to keep waterways as clear, deep and wide as possible. This is one of many reasons maintenance dredging is important. Flooding Prolonged and excessive rain can cause serious flooding affecting large areas. As dredging removes sediment that can hamper the natural flow of waterways, it is considered an effective way to mitigate floods. Dredging canals and rivers increases the amount of water they can hold. In turn, this reduces the likelihood of the waterway overflowing and submerging nearby dry land. Additionally, dredging can also improve general land drainage, which is key to preventing prolonged flooding. Ecology Environmental dredging removes pollutants, harmful vegetation, and other debris from waterways. The sediment in water bodies adjacent to urbanised and industrial areas are especially at risk of pollution, so require dredging to keep them clean. Furthermore, dredging can help preserve the ecosystem within rivers and canals. If these weeds are allowed to bloom unchecked, these water bodies can experience eutrophication. This relates to oxygen deprivation for larger species due to excess aquatic plant growth. Dredging this uncontrolled vegetation is therefore crucial to protecting natural habitats. In conclusion, well-executed dredging activities performed by experts helps protect the environment and allows boaters to navigate the UK waterways without problems. As such, seeking out specialist help is definitely recommended. In our own practice, we also ensure dredged toxicants and harmful materials are disposed of responsibly. If you have any further questions about dredging, or would like to know more about the services The Rothen Group can offer, please contact us today on 01827 215715, or email info@therothengroup.co.uk .

Our wide beam digger pontoon can be seen here collecting up extracted piles and depositing them into a hopper, ready for moving to the discharge site for recycling. These works are being undertaken in anticipation of new piling and bank stabilisation projects along the River Wissey for the Environment Agency #piling #pontoon