FM Conway Corporate Brochure

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WATER & DRAINAGE MANAGEMENT: MAXIMISING AN UNDERVALUED WASTE STREAM

FM Conway maintains approximately 1 million road gullies every year and recycles this often-undervalued waste stream to reduce waste to landfill. Every year high volumes of gully waste arisings are produced due to ongoing maintenance of trunk and local road networks, and we ensure that drainage systems remain operational and this valuable waste stream is reused. Unique Drainage Treatment Plant Our Drainage Treatment Plant (DTP) recycles 30,000 tonnes of gully waste each year and is the only full process recycling plant of its kind in the UK, and one of only four in Europe. Gully waste is collected using our dedicated fleet of gully suction tanks and transported to the DTP where it is treated using a system of separation, filtration and screening to make the majority of constituents suitable for reuse. Our plant can process around 45,000 tonnes of waste per annum, from which we recycle approximately 98% of the contents. The facility

is linked to an aggregate washing plant to ensure that any recovered sand and stone (approximately 45% of gully waste) is separated, diverted and screened for reuse in the production of concrete. Hydrocarbons are also separated out and burnt off site to produce energy, so that organics and litter are the only constituents sent to landfill. Mapping assets We carry out CCTV drain surveying and GIS services to provide clients with greater network coverage – helping them to understand their drain and sewer assets and maintain them to the highest standards. Through investment in the latest digital sensor technology, we help clients unlock efficiencies and better maintain their assets through predictive maintenance programmes. We work on behalf of asset owners and utilities to map drains and sewers and record new assets, including HADDMS surveys on the National Highways network. Our fleet also utilises the latest technology to undertake complex projects, such as off-road surveys and specialist ‘no dig’ operations, to deliver exceptional quality in our routine works.

FM CONWAY FACTS

We ensure that drainage systems remain operational and that this valuable waste stream is reused.

Our lifetime asset management approach uses intelligent asset maintenance solutions to transform the way drainage assets are managed Our Drainage Treatment Plant recycles 30,000 tonnes of gully waste each year 30,000

Liberty Avenue: Culvert Repair Our Water and Drainage Management division carried out essential culvert repair works on Liberty Avenue, which were funded through the Neighbourhood CIL (Community Infrastructure Levy). The asset is a critical piece of water infrastructure, that maintains storm flows in part of the River Wandle catchment in Colliers Wood. The initial works included a survey to identify the full scope of the project, which included the cleaning and desilting of the culvert followed by post inspection, as well as remedial works to ensure the structural stability and integrity of the culvert.

The existing defects presented a flood risk, as well as structural concern, including areas where the concrete structure in the crown of the pipe had collapsed leaving reinforcement bars exposed. As the culvert changes diameter and shape, and due to budget constraints, different techniques were required. By using cured-in-place repairs, UV and ChannelLine products, these provided an innovative solution, as well as full structural rehabilitation. FM Conway carried out the works using innovative no-dig technologies which resulted in a project that was delivered on time and budget, with minimal disruption to the strategic road network in the borough.