ST. LOUIS, MO, August 25, 2010 – Insituform Technologies, Inc. (Nasdaq Global Select Market: INSU) announced today that it has been awarded a contract valued at approximately $7 million by the City and County of Honolulu, Hawaii to rehabilitate nearly 1,400 feet of a 69-inch diameter pipeline beneath Ala Moana Boulevard, one of the main access roads to Waikiki Beach. 

Using Insituform® CIPP on this project will allow continued access to Waikiki Beach throughout the duration of the project. Installations will take place around the clock near the popular Point Panic Beach Park, Children’s Discovery Center and Waikiki Yacht Club.

Since 2005, Insituform has completed nearly $40 million of pipeline rehabilitation work for the City and County of Honolulu. With this latest contract award, Insituform continues its relationship with Honolulu as it continues to fulfill its 10-year capital improvement plan. Now nearing completion, Honolulu expects to continue its rehabilitation efforts as part of a routine maintenance program. 

“We are pleased to continue to work with the City and County of Honolulu as they complete their 10-year capital improvement plan and we look forward to new opportunities as the City and County move into a maintenance program. Our experience in the Honolulu area will be valuable as we manage this project in the high-traffic and critical area of Ala Moana Boulevard,” said Ford Cooper, General Manager for Insituform’s West Region. 

Insituform, a pre-qualified general contractor, will work with locally-owned subcontractors to provide bypass, traffic control, cleaning, closed-circuit television inspection and manhole rehabilitation beginning in October 2010. It is expected this project will be completed in approximately twelve months.

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