CIPP, Insituform Celebrate 40th Anniversary

By Jeff Griffin, Senior Editor | January 2011 Vol. 66 No. 1
Insituform recently completed one of the largest North American CIPP projects to date in Sacramento, CA.

In the early years, each crew transported and used scaffolding for most CIPP installations. The scaffolding was erected over the installation manhole with a working platform at the top. For small diameter CIPP, a downtube was suspended from the top of the scaffolding. The wet out tube was fed through the downtube and cuffed back and banded to a steel boot at the bottom of the downtube. Water was then added to the downtube to provide the hydraulic head necessary to invert the wet out tube as it traveled through the sewer. Depending on the depth of the manhole, the scaffolding could be up to 30-feet high. This presented several safety issues such as falls, danger from falling objects and overhead electrical wires.

Even so, as word of successful projects spread, interest in CIPP increased.

In 1980, Insituform of North America was formed. At the time, the Memphis-based Insituform licensee’s territory covered most of the United States. Through several stages and acquisitions, the company evolved into today’s Insituform Technologies.

A key to Insituform’s continuing success as a company and establishing Insituform CIPP as a primary method of sewer rehabilitation has come through progressive improvements in the CIPP process and methods of installing it.

In 1983, the United States Environmental Protection Agency (EPA) recognized cured-in-place pipe as a viable alternative to conventional pipeline replacement methods.

Pioneer
Tom Driver is a pioneer in advancing CIPP technology who worked for Insituform
for 27 years before his retirement in June 2010. Driver holds 23 patents related to the
Insituform CIPP process.

“Tom Driver has been in the middle of every CIPP technical innovation from the time he joined the company in 1983,” said Burgess.

Driver’s involvement with Insituform’s CIPP process actually began when he was a consulting engineer in Illinois.

“In 1979, our consulting engineering firm was hired by the city of Northbrook to find the most effective method of solving infiltration and inflow problems affecting the city’s sewer system. The new Insituform CIPP process appeared to be well-suited for portions of this project, and I thought a trenchless solution would quote well in bidding,” Driver explained

A team was assembled to conduct a study, and it’s findings were included in a landmark report co-authored by Driver which later was referenced in ASTM F1216, the industry standard for inverted CIPP.

After joining Insituform, Driver had the opportunity to work closely with Eric Wood.