9A) What changes have been made to the scheme since the statutory consultation relating to the environment?
A full account of the environmental impact of our scheme is detailed in the Environmental Statement, which has been published as part of our DCO application and is available on the Planning Inspectorate’s scheme webpage. We have made a number of changes to increase the environmental benefit and mitigate any negative environmental impacts arising from the scheme. These changes have been made as a result of consultation, engagement and/or decisions made to better the scheme. Changes are detailed in the Consultation Report, which was published alongside the Environmental Statement.
The following are some key changes to the scheme following our statutory consultation:
• Due to a variety of concerns regarding the residual effect on bats as well as active travel provision linking segregated routes to local networks, we included the provision of an underpass on the A4019 for bat mitigation. The underpass is also shared use and designed to accommodate non-motorised users, including equestrians.
• Due to concerns regarding the residual effect on bats, a structure for roosting bats will be created in the flood storage area to mitigate the loss of roosts in scheme construction. A structure for roosting bats will also be created east of Uckington to mitigate the loss of roosts in the construction of the scheme.
• Due to concerns regarding the residual effect on bats, with regards to their ability to forage to the north and south of the A4019, we removed sections of street lighting to the east and west of Uckington to provide dark corridors for bats to cross the road in these locations.
• Due to concern over the loss of wildlife and consequent environmental impact and concerns regarding the replacement of lost habitat, further changes were made to the flood storage area to improve the biodiversity value within the scheme.
• Due to a variety of concerns regarding the proposed link between Cooks Lane and Moat Lane, this proposed link was removed.
• Due to concerns regarding the Uckington Moated Site, a highly designated heritage asset, the Moat Lane/A4019 Junction was realigned so that the Moat House buildings are no longer in sight of this junction.
• Due to concerns regarding what may happen to animals due to the removal of trees and hedgerows, mitigation measures were included in the environment design to address losses in existing vegetation caused by the scheme construction. Some of these mitigation measures will be completed before construction.
9B) How does this scheme reflect the recent action plan set out as part of Gloucestershire County Council’s response to the UK Government Climate Emergency announcement?
We are committed to creating a sustainable future. We jointly hosted a Climate Change Summit in May 2019 with the Gloucestershire Local Enterprise Partnership (GFirst LEP), and as a result, we will be updating our Climate Change Strategy for the county.
All Gloucestershire councils have now declared a climate emergency. Our declaration in May 2019 included commitments for us to be net zero by 2030, and deliver a carbon neutral county by 2050, working with partners to deliver an 80% reduction by 2030. Our approach to how we tackle climate change is also being informed by national policy, such as the Transport Decarbonisation Plan that presents a view of current and future technology enabling a transition to a low carbon transport system without people needing to change their lifestyles.
Our Local Transport Plan (LTP) is in the process of being updated, and as part of this, we are considering decarbonising road and rail freight by 2050. As a local authority, it is our role to ensure that anyone who lives, works or travels through Gloucestershire is prepared for the impacts of climate change; that’s why it’s important that we invest in, maintain and improve Gloucestershire’s transport network, however, we recognise that this should not be at great expense to the local environment.
When compared to the existing road network, the implementation of the M5 Junction 10 Improvements Scheme may result in a reduction in emissions due to reducing stop-start traffic on local roads.
9C) What type of environmental assessment are you undertaking and what legislation are you following?
The M5 Junction 10 Improvements Scheme has been categorised as a NSIP and therefore requires a DCO. An Environmental Impact Assessment was required for the scheme under the Environmental Impact Assessment Regulations 2017. An Environmental Statement, the output from the Environmental Impact Assessment, has been developed and submitted as part of our DCO application for the scheme. The Environmental Statement provides a detailed explanation of all assessment undertaken, and is available on the Planning Inspectorate’s scheme webpage.
The approach to the Environmental Impact Assessment included:
• Establishing the baseline, by gathering information about the environment to enable the environmental constraints and opportunities to be identified. Receptors are identified and their sensitivity or vulnerability to change is established. A receptor is something that is affected through the construction or operation of the scheme, and could include people, buildings, plants, bodies of water, and more.
• Identifying the potential adverse and beneficial impacts of the scheme (without mitigation) on the environmental receptors identified in the baseline, for the construction and operation phases.
• Developing mitigation measures to avoid, reduce or offset the potential adverse environmental impacts, and where possible to enhance beneficial effects.
• Combining the magnitude of residual impacts, such as soil and land disturbance, noise and vibration, and dust and air quality issues, with the sensitivity of receptors allows for a prediction of the likely significant effects of the construction site on receptors, local communities, and the environment.
Dependent upon the topic, the comparison has been carried out for the baseline year and a future assessment year or a series of future assessment years (15 years after opening, or the worst year in the first 15 years of operation). We undertook assessments on carbon dioxide (CO2) equivalent emissions and Biodiversity Net Gain alongside other assessments and measures to guide the scheme development. Our approach has been led by legislation on environmental assessment in order to assess and understand any impacts and mitigation required. For example, relevant legislation guided our approach to the management of protected species on sites, the management of drainage and rainwater, and producing an Environmental Management Plan as part of the Environmental Statement.
Consideration has been given to the potential for major events (such as natural disasters or accidents caused by human activity) to interact with the scheme. In relation to this scheme, it has been concluded that the potential for major events is no greater for the scheme than for other similar schemes in the UK and for other receptors locally. Major climate events are considered in the assessment of the effects of climate on the scheme. Other major events have been scoped out of further consideration. A precautionary approach was applied to the assessment undertaken, so that the assessment detailed in the Environmental Statement presents a ‘most likely worst case’ scenario of the extent and impacts of the scheme. This is because implementing projects on the ground sometimes requires minor changes, and this approach to assessment allows for these minor changes to have been considered.
9D) I’ve been contacted about surveys, why do you want to survey my land?
Environmental surveys were carried out on all land that is close to any part of the scheme. Surveying this area has allowed us to track and understand wildlife movements that occur in the vicinity of our proposals. We will always contact landowners in advance of a survey and carry necessary ID when
visiting their land. It is important to note that we are aware of fraudulent activity where individuals impersonate surveyors and conduct fake surveys. As such, we encourage landowners to always ask for appropriate identification and to contact us if they have any doubts about the legitimacy of a surveyor. If you have any concerns or queries regarding surveys, please contact the project team by emailing M5Junction10@atkinsrealis.com.
9E) What type of environmental surveys will be undertaken on my land and why?
Environmental surveys have helped us to understand what wildlife and habitats are present, and whether there are any protected species that need to be considered when developing the design for the scheme.
All of the surveys are undertaken on foot, by specialist surveyors, and the type of survey undertaken depends on the nature of the land, for example whether it contains ponds or lakes, hedges or woodland, or flowing water or rivers. The surveys undertaken have investigated:
• Bats: conducted at dusk or dawn to record bat activity.
• Dormice: involved the deployment of plastic/wood nest tubes in woodland hedgerow
and scrub habitats, which are then checked at regular intervals for signs of dormice.
• Otter and water vole: search of watercourses for signs of use by otter and water vole.
• Breeding and wintering birds: the presence of breeding and wintering birds.
• Reptiles: involved the deployment of artificial refuges (usually small pieces of roofing material) in suitable grassland habitats, which are then checked for the presence of basking reptiles.
• Habitat suitability and eDNA: the suitability of habitats for great crested newts and the collection of water samples from suitable waterbodies.
• Invertebrates: the suitability of habitats for invertebrates.
• Hedgerows: the plant species present in the hedgerows and their condition.
• Invasive plants: for the presence of invasive non-native species of plants.
If you were contacted about undertaking surveys on your land, someone from our survey coordination team would have contacted you ahead of surveys taking place to provide you with more details about the survey specifics and to reconfirm your consent.
9F) How will the scheme impact biodiversity and how will this be mitigated?
Based on the scheme design, our scheme is projected to achieve a positive net gain in biodiversity within the current DCO limits. Biodiversity Net Gain (BNG) is an approach which aims to leave the natural environment in a measurably better state than beforehand. Natural England have developed an approach to BNG which has been applied to the scheme, measuring the existing (pre-construction)
habitats, and measuring predicted losses and gains, as part of the development of the scheme design. Whilst there would be initial habitat loss during site clearance, the measures incorporated in the scheme design will ultimately lead to habitat gains. An assessment of the BNG for the preliminary design of the scheme has been undertaken using the Department for Environment, Food and Rural Affairs (DEFRA) Metric 3.0. The methodology applied and the corresponding results are reported as part of the Environmental Statement. In September 2023, the Government confirmed that upcoming legislation will formalise mandatory BNG, with new housing, commercial and infrastructure developments required to deliver 10% BNG to ensure a net positive impact for the local environment. Implementation of this requirement for NSIPs, such as our M5 Junction 10 Improvements Scheme, is planned for 2025. As stated, based on the scheme design, our scheme is projected to achieve a positive net gain in biodiversity within the current DCO limits. For more information on the upcoming changes, please see the press release from DEFRA, Department for Levelling Up, Housing and Communities, and Trudy Harrison MP.
We are implementing a wide range of mitigation measures to support biodiversity as part of the M5 Junction 10 Improvements Scheme. These measures include:
• The design of the River Chelt bridge as a clear span structure over the river to avoid direct impacts on the river and riverbanks and ensure fauna can continue to move along the river unimpeded.
• Wildlife crossings underneath the new Link Road, and the A4019.
• Creation of new habitats including woodland, scrub, hedgerows, and species-rich grassland, as well as wetland habitats with areas of water present for all or part of the year.
• Minimization of light spill from any required lighting beyond the road.
• Creation of green corridors to connect with the wider area and establish a robust habitat network.
• Inclusion of a drainage design to reduce flood risks and avoid water quality impacts to local watercourses.
Overall, the measures taken ensure that the scheme will provide more higher quality habitat for wildlife in the long term than is currently available, and significant adverse effects on biodiversity resources are not anticipated.
Alongside these measures, the flood management strategy will provide a flood storage area adjacent to Junction 10 of the M5, and the layout and landscape design of this area is being developed to deliver a range of new habitat creation which will ensure that the scheme will provide more higher quality habitat in the long term than is currently available. An Environmental Statement has been developed and published as part of our DCO application, and is available on the Planning Inspectorate’s scheme webpage.
9G) How will the scheme impact air quality and how will this be mitigated?
An Environmental Statement has been developed and published as part of our DCO application, and is available on the Planning Inspectorate’s scheme webpage. As indicated in the environmental assessment proposed for the scheme, impacts were evaluated during both the construction and operational phases. Factors such as dust emissions and construction traffic were taken into account during the construction phase, while the assessment during the operational phase considered impacts on human health, compliance risks, and designated habitats. It is anticipated that any air quality impacts resulting from construction activities will be temporary and effectively mitigated through the
implementation of best practices and appropriate measures. Overall, in the initial year, the scheme is not projected to have a significant adverse effect on air quality to human health receptors or designated habitats.
The redesign of M5 Junction 10 and the provision of the Link Road aims to alter traffic patterns, resulting in decreased annual mean nitrogen dioxide concentrations for most areas. Improved connectivity between the Strategic Road Network (SRN) and the local transport network in West and North-West Cheltenham is expected to contribute to these reductions. An air quality assessment, conducted according to industry best practice guidance (LA105), examined the potential impact on air quality, specifically nitrogen deposition from road traffic emissions on designated habitats within 200m of the affected road network. The assessment identified six non-statutory designated sites and one veteran tree in close proximity to the road network. Results indicated air quality improvements and reduced nitrogen deposition rates at all locations upon implementing the scheme.
9H) How will the scheme impact noise pollution, and how will this be mitigated?
An Environmental Statement has been developed and published as part of our DCO application, and is available on the Planning Inspectorate’s scheme webpage. The noise and vibration section of the Environmental Statement presents the assessment of the scheme's effects on noise and vibration, considering both construction and operational phases, which result from construction activities and road traffic. Road traffic, primarily from vehicles using the existing M5 and the existing A4019 Tewkesbury Road, serves as the dominant source of noise near the scheme. Within or near the scheme, there are eight Noise Important Areas (NIAs) identified by strategic noise mapping conducted by DEFRA, indicating areas where the highest noise levels from major roads affect 1% of the population.
The Environmental Statement identifies potential impacts once the scheme is operational including positive and/or negative impacts on noise, for example those linked to changes in traffic flows, speeds, and composition. The scheme has the potential to have an impact on noise levels during the construction phase and when in operation, due to changes in traffic on the affected road network - that is, roads will experience a change in traffic due to the scheme.
A construction noise assessment has been undertaken. This determined that daytime works within 50m of a noise sensitive property, evening or weekend works within 100m of a noise sensitive property, or night-time works within 300m of a noise sensitive property have the potential to lead to a significant noise effect.
The impacts of noise during the construction stage will be minimised through the implementation of best practice measures during construction, and the siting of construction compounds away from properties, where possible. During construction, local residents will be kept informed of the progress of the works, and when the noisiest activities will be taking place. In most cases, where it is unavoidable for roadworks to be close to residential properties, they will not be in place for lengthy periods. This means that construction noise is not anticipated to lead to significant effects, avoiding the need for temporary rehousing or noise insulation.
The levels of construction vibration are likely to lead to a minor to moderate impact during ground compaction, but since the works will not be in place for lengthy periods, this is not anticipated to lead to significant effects.
Noise barriers are included in the design as a mitigation measure to minimise noise impacts during the operational stage, for example within NIAs. The details of the noise barriers with regards to their construction and the materials used will be undertaken as part of the detailed design stage for the scheme and can be reviewed in the Environmental Statement which is available on the Planning Inspectorate’s scheme webpage. Alongside noise barriers, new road surfacing is proposed throughout the scheme which will reduce noise and vibration levels and traffic in the operational stage.
9J) How will the scheme impact flood risk, surface water and groundwater, and how
will this be mitigated?
An Environmental Statement has been developed and published as part of our DCO application, and is available on the Planning Inspectorate’s scheme webpage. As part of the design of the scheme, detailed modelling was undertaken to understand the baseline flood risk conditions and to evaluate the flood risk both to and from the scheme. Any potential effects on water quality will be minimised through a drainage design that uses sustainable drainage systems, so that all water from the road surfaces is captured and treated before being released into watercourses, at greenfield run off rate. The impacts to the River Chelt will be minimised through the implementation of ecological enhancements upstream and downstream of the new watercourse crossing. The effects of the scheme on flooding will be minimised through the embedded mitigation measures within the design, including a series of culverts under part of the new Link Road, and the creation of a flood storage basin between the M5 and Withybridge Lane. These will ensure that the new road does not block the movement of flood water, to avoid causing any additional flooding. Modelling indicates that there remain potential localised significant adverse effects to the River Chelt floodplain. This is as a result of predicted changes in the movement of water, which could cause an increase in flood depth by around 100mm for some areas of existing farmland. The effects of the scheme on the groundwater environment will be minimised through embedded mitigation measures within the design. Site specific groundwater data, piling risk assessments and the use of best practice have been included in the design considerations. For all other aspects of road drainage and the water environment, the scheme will not result in significant adverse effects.
9I) Will widening of the A4019 increase the level of vibrations for local residents?
The Design Manual for Roads and Bridges (DMRB) guidance (reference document LA 111) states that the main source of vibration is the passage of vehicles over poor quality road surfaces from irregularities such as potholes.
The widening of the A4019 will require it to be resurfaced, meaning the road surfaces would be smooth when laid and there would be no vibration. As time goes on, maintenance would address issues with the surfacing as they arise.
It is unlikely that vibrations from such surfaces will be noticeable across the M5 Junction 10 Improvements Scheme when in operation.