Edgware Road

Brent, North West London, NW9

We had numerous meetings with the project design team (Waterman’s), Thames Water and McLaren to re-design the drainage scheme offered with the inverts into the new sewer and fall over the site being a major problem we then came up with a solution so the Thames Water Section 185 agreement could be placed to undertake the works as this element was critical so the landscaping paving works could be completed. The deep drainage team started downstream on site and encountered various problems with the existing drainage.

We proceeded pipelaying through a pinch point on the site, where we encountered an abandoned buried reinforced pump chamber. This held up the gang, as the obstruction was up to 3m in depth, this pushed out the programme by up to eight days. The team continued to lay pipes (both lines were laid simultaneously). Generally, when we undertake a service diversion we are usually the first contractor on site, in this case the superstructure works were 85% complete. Furthermore, we had to cart all muck away, track machines, and materials through the newly constructed ground floor slab. Additionally we had various other trades were working together on the compact site. Due to the unforeseen delays experienced we placed another pipelaying team on site to accelerate the works so we could meet the target programme of 13 weeks. We encountered numerous other obstructions & delays on-site, but by working with the client we were able to overcome these problems. JBDS came up with a value engineering solution regarding the design, which included 30m of open cut to be omitted from the works. On behalf of the client we sought approval from Thames Water’s engineer, approval was granted and we were able to connect further downstream. This saved the client valuable on site space, and a major a saving on the works. Additionally, reducing the programme length, even with the various delays that were encountered, within the congested working area.

The works were completed within budget and within programme. The integrated team consisting of; JBDS, McLaren, Waterman’s & Thames Water delivered an extremely logistically challenging project.