New Road Blakeney Landslip
New Road Blakeney was closed in February 2020 when the first signs of slope instability were noted.
The site is located on New Road, Nibley, approximately 1.3 km west of Blakeney.
What monitoring has been taking place?
The geotechnical team has been monitoring the ground movement on a regular basis since the problem was reported. Currently there are several landslip features at this site which are being watched to understand the slope movement. A geotechnical investigation was completed in November 2020. Inclinometers were installed during the geotechnical investigation and are being monitored to assist us to determining the slope failure mechanism.
Here are some photographs of the ground movement, which demonstrate why the work needs to take place:
What is the next phase of work?
Design optioneering is currently being progressed to help determine the most suitable remedial solution for the site, taking into account the challenging site constraints (such as the failed slope, existing services and the limited working area). Once a remedial solution has been finalised the scheme can be progressed through detailed design, procurement and construction.
When will work start?
It is currently difficult to estimate when we will be able to start work, as it will depend on the outcome of the design optioneering and subsequent detailed design. We think that the earliest time that construction will commence will be early 2022 but we will keep you updated with any progress on this webpage.
Frequently Asked Questions (FAQs)
- Why has the road been closed?
A significant landslip on the embankment below the carriageway occurred in February 2020 following a period of heavy rain. The westbound lane was damaged in the landslip, requiring the closure of the road.
Geotechnical inspections of the site indicate that movement of the failure is ongoing.
- Will pedestrian and cycle access be maintained?
A section of the eastbound carriageway remains open for pedestrian and cycle access. If monitoring indicates that ground movements are affecting this section of carriageway it may be necessary to restrict pedestrian and cycle access in the future.
- When will work start and finish?
A ground investigation at the site was completed in November 2020.
The investigation provided information on the ground underlying the site and enabled the installation of equipment to monitor ground movements. Design optioneering is currently being undertaken to identify a suitable remedial solution, was this has been established, detailed design will be progressed.
We think that the earliest time that construction will commence will be early 2022 but we will keep you updated with any progress on this webpage.
- What repairs are necessary?
The ground investigation and monitoring work will reveal what construction work is required to stabilise the landslip so that the road can be safely reopened to the public.
- What is the cost of the scheme?
The estimated, total cost of the scheme is £1.5m.
- Who is paying for the scheme?
The funding for the scheme is coming from Gloucestershire County Council.
- Why can't these funds be spent on routine maintenance, such as filling potholes?
These funds are specifically allocated for improving the highway infrastructure and therefore improving the conditions for motorists.
- These works are going to disrupt my journey, what will you be doing to help?
GCC will be maintaining access for residents and will be working hard to minimise disruption to the travelling public.
GCC have followed national guidelines for the diversion route and road signage and will continue to monitor traffic in the local area and where appropriate provide additional signs. We strongly recommend vehicles use our signed diversion as it is suitable for all road users and will help avoid local congestion.
- How will you avoid creating excessive noise and air pollution during construction?
As part of the construction tender process, GCC will set out requirements for methods of working to minimise the impacts of noise/pollution etc. during the construction period.
- Have you considered the potential environmental impacts of the scheme?
Yes, an initial environmental site survey will be undertaken in May 2021 in order to assess the potential environmental impacts, and how the scheme design can minimise these.
- Where can I find out more about the proposed scheme?
The project to fix the road is at the design optioneering stage. Please revisit this web page where we will post further updates as we have them.
In the meantime if you have any queries, you can contact us by e-mailing the Highways inbox .