As part of the regeneration of the 31 hectare Royal Arsenal West site, CampbellReith was appointed to design the remediation, highways, hard and soft landscaping, and drainage infrastructure across the site, and act as the contract administrator for the works.
The highway works included the design of new roads, traffic signs and road markings, footpaths and crossings to complement the historic listed buildings retained at the Royal Arsenal.
The remediation of the site included a soil washing plant which recovered over 100,000 tonnes of aggregate and soil for re-use as engineering material in the highways, drainage trenches and clean layers within the development plots. The remediation included a programme of munitions recovery and the accommodation of an extensive archaeological dig.
The drainage designed for the site consisted of eight separate drainage networks incorporating 500 manholes and almost 17 kilometres of pipework.
The surface water drainage that discharges to the River Thames adjacent to the site was designed to accommodate the significant tidal effects. A new outfall was created through the river wall incorporating flood defence measures required by the Environment Agency. A proportion of the deep drainage works, some of it up to nine metres depth and of large diameter was constructed using micro-tunnelling techniques to avoid the need for deep excavations adjacent to the listed buildings, and as a more economic solution.