CASE HISTORY PDF'S
Auger boring within a pipe
A series of lateral sewer connections, achieved by Perco as part of The Environment Agency's flood alleviation project for Lewes, have set a UK precedent in augerbore trenchless technology. Our auger bore team operated subcontract to Costain B&V JV a
Sliplining in Northwich
Working with main contractor Galliford Costain, Perco installed two 450mm diameter pumping main pipes in Northwich, Cheshire.
Sliplining in the Rhondda
When Costain was building the new Porth Relief Road, they had to decommission an old culvert draining redundant mine workings at Porth in the Rhondda Valley, South Wales. We were asked to come up with an innovative solution for the problem.
Mini burst upsizes foul sewer
When the owner of a Sheltered Accommodation development in Milton Keynes wanted to get the development’s foul sewer adopted by Anglian Water, the local water utility company, it was discovered that the sewer was undersized. The existing 100mm interna
Shaft sinking in Liverpool
A Victorian brick egg sewer running the length of Dale Street, one of the busiest streets in Liverpool City Centre had collapsed half way along the street. The area has been heavily developed over three centuries and the ground surrounding the collap
Flood alleviation in Notts
Perco installed a 7.5m diameter caisson shaft and 450mm gravity sewer for a flood alleviation scheme in Nottingham.
Rod pulling under live rail
Trains on the Oxford-Worcester (OWW) line kept running in safety, as Perco renewed an under-track, brick lined culvert by rod pulling, in July 2004.
Rod Pulling in Kenilworth
One of Perco's trenchless pipe installation techniques was used to avoid disrupting a site of special scientific interest, in May 2004, as part of Severn Trent Water's extensive flood alleviation measures in Kenilworth, Warwickshire.
Manhole bursting in Cornwall
When South West Water needed to renew a 220 metre section of foul sewer running close to a river at Penryn in Cornwall, they called Perco in to advise on the job.
Lateral cutting on the railway
As part of a major sewer renovation project for Tomlinson Rail and Severn Trent Water, Perco cleaned and surveyed 2000 metres of storm and foul sewers at 20 locations throughout the East Midlands.
Headings cure Gosport flooding
A major flooding problem affecting housing in a cul-de-sac at Gosport, Hampshire had been causing problems for residents and attracting news coverage in the local press and on TV. Because the affected sewers ran under housing, open cut was not an opt
Headings in Birmingham
When contractors Bowmer Kirkland needed to connect a prestigious new Birmingham office development to the public sewer network, they were unable to use traditional open cut methods or other trenchless techniques due to lack of access and the risk of
Drilling to freedom
Using one of its laser guided BM400 auger boring rigs, Perco installed an outfall sewer pipe for a new Bovis lend-lease development adjacent to the Law Courts in Gartside Street, Manchester.
Auger boring in Blackburn
Flooding problems in the Granville Road area of Blackburn necessitated an upgrade to the local sewer network. United Utilities’ main contractor, Balfour Beatty Utilities had to install a new overflow system to reduce local flooding.
Going Underground
We used our Bohrtec BM150DT guided auger boring rig to install a new cable duct under the live rail at Kew and Gunnersbury Underground Stations. The BM150DT was chosen for its ability to work from small diameter shafts and within pipes, and for its a
Expandit in Exeter
When South West Water wanted to develop a site on the outskirts of Exeter, they had to upgrade the existing sewer to 450mm. Our Expandit Pipe Bursting Team was called in to upsize 600m of an existing sewer from 375mm to 450mm ID and a second sewer fr
Keep the cider flowing
Gaymer’s Cider Company operates its production facilities to the highest standards of hygiene control, and when it’s Shepton Mallett factory’s drains and sewers needed rehabilitating, Perco was able to offer a clean, non intrusive solution to the pro
Brick Egg Sewer relined
A failing egg shaped brick sewer in Leeds City Centre gave us a great chance to show just how flexible our Cured in Place GRP Lining system, EcoCIPP, really is!
Directional Drilling in Harlech
A 60m polyethylene pipeline is installed
through cliffs at Harlech, North Wales using trenchless technology.
EcoCIPP Relining in Gloucester
In September 2005, Perco installed the first EcoCIPP liner in a Severn Trent asset, working alongside Barhale Construction and the liner was installed in just 1 day.
OnSite Central acquires Perco
A new phase in Perco’s development starts as we be...
300mm ID sewer installed under rail and road by guided auger boring and timber heading
A high water table and running sand meant that gro...
Auger boring within a pipe
A series of lateral sewer connections, achieved by...
Perco Rail Sector brochure
Find out how Perco helps to keep the trains moving...
