This connection into an existing 1140mm x 790mm Victorian main, at 2.5m depth, involved working within the confines of one lane of the highway, but thanks to our experience and rigorous process it was completed within the timescales given by the client – despite the very tight turnaround required between the order being placed and starting on site, which meant the relevant licences had to be obtained quickly.
The dig-and-push method that was used involved two levels of aluminium frames and hydraulic braces; we carefully core-drilled into the existing sewer and installed the new pre-formed saddle with sika sand and cement.
A single lane closure was agreed with the local authority, which was maintained at all times, plus we were able to suspend parking bays nearby which helped with the storage of materials and waste. Correct compaction and materials must be used within any highway at all times, so we used MOT Type 1 crush compacted in layers, with the correct number of petrol trench rammer to guarantee that the reinstatement will not fail when inspected at a later date.
“I would recommend Premier Drainage Solutions to anyone needing to complete a drainage project. We were impressed with the way the work was carried out, with little fuss and on time, considering there were complex logistical needs in terms of the local authority and Thames Water. We were shielded from these and the job was completed efficiently and effectively, on time.”
Suzanne Petrides, Architect / Director, Larkfield Investments
