ST. LOUIS, MO, August 9, 2010 – Insituform Technologies, Inc. (Nasdaq Global Select Market: INSU) announced today it has been awarded the first cured-in-place pipe project in Mankato, Minnesota’s history. This $5.1 million contract award will allow Insituform to rehabilitate 10,000 feet of 42-inch diameter sanitary sewer pipelines in the commercial and historic downtown areas of Mankato. 

"Insituform first introduced CIPP nearly 40 years ago and we are pleased to now use this trenchless technology to rehabilitate nearly two miles of pipelines in Mankato. We are confident that we will exceed the City’s expectations as we complete this project," said Bobby O’Dell, General Manager for Insituform’s Central Region. 

It is expected that Insituform crews will begin to install Insituform® CIPP in September 2010 and will complete the project, which runs along the Minnesota River, in twelve months.

Public Works Director for the City of Mankato, Mark Knoff, said, "The City of Mankato is pleased to work with Insituform, low bidder of the city’s $5.1 million sanitary sewer rehabilitation project. Insituform provides a trenchless cured-in-place pipe solution that reduces traffic and environmental impacts and will ultimately reduce future capital, operations and maintenance expenses."

Insituform will manage locally owned subcontractors throughout the project to provide cleaning and closed-circuit television inspection, manhole replacement and rehabilitation.

Insituform® CIPP is a jointless pipe-within-a-pipe used to rehabilitate pipes ranging in diameter from 6 to 96 inches. Suitable for repair of sanitary sewers, storm sewers and force mains, Insituform® CIPP extends the life of existing infrastructure by approximately 100 years. Rehabilitating sewer pipelines with Insituform® CIPP reduces infiltration, restores structural integrity and increases flow capacity without disruption to communities, typically at a lower cost than dig and replace solutions. 

About Insituform
Insituform Technologies, Inc. is a global leader in pipeline protection. Insituform provides proprietary technologies and services for rehabilitating sewer, water, energy and mining piping systems and the corrosion protection of industrial pipelines. More information about the Company can be found on its internet site at www.insituform.com.

Forward-Looking Statements
The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking statements. The Company makes forward-looking statements in this news release that represent the Company’s beliefs or expectations about future events or financial performance. These forward-looking statements are based on information currently available to the Company and on management’s beliefs, assumptions, estimates or projections and are not guarantees of future events or results. When used in this document, the words “anticipate,” “estimate,” “believe,” “plan,” “intend,” “may,” “will” and similar expressions are intended to identify forward-looking statements, but are not the exclusive means of identifying such statements. Such statements are subject to known and unknown risks, uncertainties and assumptions, including those referred to in the “Risk Factors” section of the Company’s Annual Report on Form 10-K for the year ended December 31, 2009, as filed with the Securities and Exchange Commission on March 1, 2010 and in our subsequent quarterly reports on Form 10-Q. In light of these risks, uncertainties and assumptions, the forward-looking events may not occur. In addition, our actual results may vary materially from those anticipated, estimated, suggested or projected. Except as required by law, we do not assume a duty to update forward-looking statement, whether as a result of new information, future events or otherwise. Investors should, however, review additional disclosures made by the Company from time to time in its periodic filings with the Securities and Exchange Commission. Please use caution and do not place reliance on forward-looking statements. All forward looking-statements made by the Company in this news release are qualified by these cautionary statements.

Insituform®, and the Insituform® logo are the registered and unregistered trademarks of Insituform Technologies, Inc. and its affiliates.

For more information, contact:
David F. Morris
Senior Vice President and Chief Administrative Officer
636-530-8000