Phase I of key Sheffield infrastructure project completed

The first phase of an important infrastructure project in Sheffield has been completed by civil engineer and infrastructure specialist Barhale Ltd on behalf of Yorkshire Water.

The infrastructure works are necessary to accommodate housing and commercial growth in the Waverley area of Sheffield, and have included the challenging negotiation of several busy roads including the A630 linking Sheffield city to the M1 Motorway.

The complex project sees new twin and triple rising mains installed in 225mm and 250mm Polyethylene (SDR 17) pipe from Poplar Way to Europa Link. The 827m of new pipeline has been laid using a combination of open cut and directional drilling and also includes the installation of a washout chamber, air valve chambers, four valve chambers and three hatchbox chambers.

Andy Laughton, site agent, explained that the site had presented a series of challenges. “As you might expect in a busy urban environment, there have been many considerations beyond just getting the pipes in the ground.

“This has meant dealing with multiple service crossings, including Intermediate Pressure Gas, working across land in multiple third party ownerships and the need for directional drilling underneath some of Yorkshire’s busiest roads – including the A360, a main thoroughfare between the motorway and the city centre.”

Phase Two of the project will lay a further 2,147m of new gravity pipeline, installed by open-cut/guided auger-bore and micro-tunnelling techniques. Modifications and upgrades are to be made to the local sewage pumping station to deal with the increased flows from the new 3000 properties being developed. Target completion is March 2020.

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