Demolition to start at Bristol’s Stokes Croft Development
The long awaited demolition of Westmoreland House and the structure behind the Carriageworks building facade in Stokes Croft, Bristol, is starting. This is the first phase of redevelopment of the whole site which, when complete, will comprise 6 residential blocks and some retail units.
In demolition terms, this is going to be a very delicate operation with a carefully engineered scaffold that will be craned into place as protection to adjoining buildings, making sure Westmoreland House can be removed without impacting on this neighbouring building and that the distinguished stone arched façade of the Carriageworks is retained intact. A significant amount of hand demolition will be used in the first instance with the big machinery arriving later in the month and completion anticipated by Christmas ready for further archaeological activities that will be taking place on site in the New Year.
Clarkebond is providing civil, structural and ground engineering on the scheme.
Demolition works will include the removal of foundations and a basement in Westmoreland House which will be filled with crushed and graded engineering specification demolition arisings below ground level and temporary works if required.
The site has a number of engineering challenges associated with the redevelopment of brownfield sites.
Clarkebond’s Ground Engineering team’s investigations confirmed legacy use of the site to include a carriage manufacturer, blacksmiths, foundry, a rubber works, garage and paint shop. Contamination was found, consistent with this previous usage. An outline Remediation and Risk Reduction Strategy was produced to address these risks and guidance on waste disposal was also given as well as maximising retention of surplus soils on site.
An options appraisal for foundation types was undertaken to address the issues of buried basements in Westmoreland House, two metres of made ground across a third of the site, site boundary retaining walls and the presence of a deep-lying strategic sewer running through the site.
Following demolition, a further phase of ground investigation will assess below ground party/boundary wall aspects and the large basement area of Westmorland House, followed by a final Remediation and Risk Reduction Strategy.
* Development preview: A short video produced by Clarkebond engineers gives a preview
s of what the development could look like.