Wastewater — Latest News — Trenchless International — The official magazine of the ISTT, covering no-dig trenchless technology

Subscribe to Trenchless International RSS feed

CIPP offers community benefits in Canada

Fri, 25 June 2010 The City of London, in Ontario, Canada, has renewed a CIPP contract to rehabilitate a 40 km wastewater pipeline.

Getting bored in Bulgaria

Trenchless International — July 2010 The successful completion of a microtunnelling project in Bulgaria has showcased the engineering expertise of this Eastern European nation. A tunnel boring machine was used to install a new sewer pipe in the city of Plovdiv to avoid interrupting road and rail traffic.

No-Dig in Dalum

Trenchless International — July 2010 What is the solution when large pipes have to be installed in a city where open excavation is impossible, the groundwater table is high and groundwater lowering is not permitted? An ideal option is pipejacking with compressed air. That was the solution chosen in a major sewerage project in the Danish city of Dalum, where engineers had to work within a high density urban area and a partly protected nature reserve.

CIPP foils Danish rats

Trenchless International — July 2010 At the SSTT’s annual meeting in Bergen, Norway, Århus Vand A/S and the contractor Per Aarsleff A/S won the audience’s, as well as the professional jury’s, No-Dig award for the most innovative project – the longest CIPP project in Aarhus municipality to date.

Inspection and rehabilitation of a deep, high flowing large diameter sewer

Trenchless International — July 2010 Inspection and condition is a challenging component of any rehabilitation program. In Canada one project team developed innovative planning and specialised equipment to achieve a positive outcome for the city of Hamilton, Ontario.

Flood-free sewer for the Netherlands

Mon, 21 June 2010 An overload sewer main extension has been completed in the Dutch municipality of Doetinchem, providing 57,000 citizens with a flood-free sewer for the next five decades.

Getting Lei-d with CIPP

Fri, 18 June 2010 A major trenchless sewer rehabilitation project using CIPP commenced in Honolulu, Hawaii, in mid-May.

Kansas City gets serious about sewage

Wed, 16 June 2010 Kansas City council has agreed to invest $US2.5 billion in upgrading its sewer system over the next 25 years, aiming to eliminate overflows of untreated raw sewage and reduce pollution levels in urban stormwater.

London pipes due for a polish

Thu, 10 June 2010 Thames Water has awarded over £500 million in contracts to repair, maintain and replace sewers and water mains in London over the next five years.

Beyond the straight and narrow

Wed, 9 June 2010 The first curved microtunnelling project in the United States was successfully completed in late May.

Robotics help Bahrain boost sewer capacity

Tue, 8 June 2010 Relining is being used throughout a major sewer rehabilitation project undertaken by the Bahrain Ministry of Works.

Falls Church falls for trenchless

Mon, 7 June 2010 The City of Falls Church in Virginia, United States, has commenced a sanitary sewer rehabilitation project that will utilise CCTV and relining technologies.

Relining on the room service menu

Fri, 4 June 2010 The pipe system in a historic New Jersey hotel, on the east coast of the United States, has been successfully rehabilitated without disturbing residents or damaging the heritage building.

Sewer upgrade in Keswick

Wed, 2 June 2010 A massive sewer upgrade in Kewsick, located in the picturesque Lake District of Northern England, will employ Trenchless Technology to reduce disruption to traffic.

Go west! Sewer relining for Michigan

Tue, 1 June 2010 The City Council of Westland, located in the US state of Michigan, has approved a $US3.5 million sewer rehabilitation project.

No-Dig goes north

Thu, 27 May 2010 Northern Ireland Water will shortly commence work on the installation of a new gravity sewer in the village of Toome, located on the northern bank of Lough Neagh.

Dora completes her duties

Mon, 17 May 2010 Thames Water has completed a £80 million scheme to stop London homes flooding with sewage.

US sewers get a face-lift

Wed, 12 May 2010 No-dig continues to be a popular approach for sewer rehabilitation in the US, with three new cities recently announcing upgrades which will employ trenchless techniques.

Victorian sewers enter the modern age

Tue, 11 May 2010 Wessex Water will renovate up to 6 km of sewers in the town of Weymouth, located in Dorset, England, some of which have been used for more than 100 years.

US sewer wrap

Thu, 22 April 2010 A number of local and city councils in the United States are employing trenchless innovations to assist with repairs and rehabilitation of wastewater systems. In this update, we look at three Midwest cities experiencing the benefits of going trenchless.