Barrow to Chelvey
The Chelvey to Barrow renovation scheme is part of a project to renovate 22km of mains in the area. These mains, parts of which were originally laid in the 1860s, supply treated water to the Backwell, Nailsea, Flax Bourton, Barrow Gurney and Long Ashton areas as well as directly into Bristol. The work is needed to improve water quality and ensure the security of water supply for the future. This work will renovate two pipes one at a time.
Length and project duration
- SCHEME ONE – 8km, 14 inch Chelvey to Barrow treatment works – completed late 2013.
- SCHEME TWO – 8km, 21 inch Chelvey to Long Ashton – This work commenced Jan 2014 and will be completed towards early 2015.
Update- 4th July 2014
Pipe installed on Scheme 2: 5624m
Scheme 2 Update – Chelvey to Long Ashton
The second stage of work on the Chelvey to Long Ashton part of this scheme has been progressing very well during the past number of weeks and a large proportion of the new pipework (5.6km) now inserted into the existing cast iron main . The scheme follows a route between our treatment works in Chelvey lane along the A370 to Weston Road/Wildcountry Lane, Long Ashton. All temporary pipework is now in place around Long Ashton and Backwell to maintain customer supply during the renovation work and this will be required in some locations until the entire scheme is complete. Works on the scheme are programmed to complete in Spring 2015.
Ongoing work on the A370 is continuing to progress well and the new 450mm pipe has now been inserted from the layby near the Dew Drop Inn, through Farligh and into Backwell where it is currently being pushed towards the Bowling Club. The pipe has also now been inserted under the A370 into Old Weston Road, at the coroner’s court.
Two-way traffic lights have been in operation on the A370/Farleigh Road near Fairfield Way for several weeks now. This was to allow us to excavate on to the section of plastic pipe which was inserted to this point earlier in the programme, which was then ttested prior to planned reconnection to the surrounding network. As mentioned above, the next seciton of pipe has also been pushed from this location into Backwell.
While the majority of the new pipework has now been installed on this section, please note that excavations will still be required until testing and commissioning of the new pipe has been completed. Connections to the surrounding network will then follow and traffic light controls on the A370 will still be required to accommodate this work. Traffic lights will be moved as necessary along the route of the new pipe until this work has been completed.
During the coming week, we will need to excavate near Backwell Bowling Club on West Town Road, at a location where we installed some new valves earlier in our works programme. From here, one of the final sections of pipe in the scheme will be inserted towards Chevley Lane to join works which will be carried out there this month (see below). Traffic light controls will be used at this location while this stage of the works is completed.
Long Ashton/Weston Road/Old Weston Road/Gatcombe
Installation of the new 500mm plastic pipe along this section of the scheme is now also nearing completion, with the final part of the pipe being installed in next week. Two way lights are currently operating on Weston Road and we apologise for any inconvenience this causes to road users. Please note that while our staff are working elsewhere on site, the excavations within the traffic lights need to be retained as the pipe has been undergoing pressure testing and disinfection during the past few weeks.
Work is now also underway at Old Weston Road/Cambridge batch where excavations are needed to install the final section of pipe. Following insertion of the final section of pipe, as above, it will be necessary to leave some excavations open, while testing and disinfection processes are completed prior to connecting the new pipe to the existing network. Towards the end of next week, 4-way traffic lights will be temporarily put in place at the Cambridge Batch roundabout while excavations are carried out to complete service connection work here – we apologise for any delays this causes to your journey.
The new pipe will be connected into the network at Wildcountry Lane this weekend and it will be necessary to interrupt some customer supplies. Affected customers will have received cards to advise them in advance of this taking place.
Due to the position of the existing pipe, it has been necessary to set up our works area adjacent to the cycle path/footway along Weston Road. At some points it has also been necessary to narrow the cycle path to accommodate temporary supply connections or to provide additional safe distance beside our fenced works area. Cyclist dismount signs have been placed at either side of the works area along with a chicane barrier system as a speed control measure. We ask that cyclists please dismount between these points and proceed carefully along the works area, particularly during operational hours, to help ensure the safety of all users of the cycle path / footway when passing our fencing during this time.
Yanley Viaduct Project & Bristol International Balloon Fiesta
In light of North Somerset Council proposals to complete major maintenance works on Yanley viaduct (A370/Long Ashton bypass) later this year, we are working together closely with the Highways and Transport department to minimise the interface between our respective traffic management measures. We therefore commenced sliplining works on the A370 near Flax Bourton/The Dew Drop Inn/Long Ashton and have been working back towards Backwell/Chelvey later this year. This will help ensure that our remaining traffic management measures on the A370 in the coming months will be separated from the zone affected by the works proposed by North Somerset Council. It is planned that traffic management measures required for main sliplining works on Weston Road, Long Ashton will be removed by the end of July 2014. The 24 week works period includes for any remaining minor works such as removal of bypass pipework, final service pipe connections etc., which may need to be completed outside the main carriageway, without traffic management.
Insertion of pipe has alredy gotten underway in fields off Chelvey Lane, which will help minimise future works required to finish this section of the scheme. It will unfortunately be necessary to implement a road closure on Chelvey Lane for further planned works
associated with the scheme on 28 July 2014. Residents will shortly receive written confirmation of the proposed closure dates. The closure will be in place for 6 months, however, we aim to complete this work and remove the closure as quickly as possible.
We apologise for the inconvenience these works cause and assure road users that we are working as quickly as possible to complete this part of the project.
Our teams onsite aim to assist any affected residents or road users wherever possible – should you require assistance as a result of our works, please look out for Land & Marine staff with yellow ‘Here to Help’ stickers on their hard-hats. The work is being carried out by our contracting partner Land & Marine Engineering Limited (L&M).