8-K

               SECURITIES AND EXCHANGE COMMISSION

                     Washington, D.C. 20549

                        ----------------


                            FORM 8-K

                         CURRENT REPORT


             Pursuant to Section 13 or 15 (d) of the
                 Securities Exchange Act of 1934



Date of Report
(Date of earliest event reported):           September 7, 1999
                                             -----------------



                  INSITUFORM TECHNOLOGIES, INC.
      ----------------------------------------------------
     (Exact name of registrant as specified in its charter)


    Delaware                 0-10786              13-3032158
- ------------------         ------------         --------------
 (State or other           (Commission          (IRS Employer
 jurisdiction of           File Number)       Identification No.)
 incorporation)


702 Spirit 40 Park Drive, Chesterfield, Missouri         63005
- ----------------------------------------------------------------
(Address of principal executive offices)              (Zip Code)


Registrant's telephone number,
including area code                               (636) 530-8000
                                                  --------------











Item 5.   Other Events.
          -------------

     On September 7, 1999, the Registrant announced that, in
previously reported patent infringement proceedings initiated by
the Registrant against CAT Contracting, Inc. ("CAT"), Michigan
Sewer Construction Company, FirstLiner U.S.A. ("FirstLiner")
(formerly InLiner U.S.A.) and Kanal Sanierung Hans Muller GmbH &
Co., the United States District Court for the Southern District of
Texas rendered its final judgment and awarded damages to Registrant
in the amount of approximately $9.5 million.  The court also named
Giulio Catallo, the owner and chief executive officer of CAT and
FirstLiner, as an individual party defendant in the proceedings.
The Registrant is currently unable to ascertain the ability of the
defendants to satisfy the judgment or whether defendants will elect
to appeal.

     Reference is hereby made to the Registrant's press release
issued September 7, 1999 attached to this Current Report as Exhibit
99, which is hereby incorporated into this item.


Item 7.
- -------

     (c) Exhibits.

     The exhibit filed as part of this Current Report on Form 8-K
is listed in the attached Index to Exhibits.




                           SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of
1934, the Registrant has duly caused this report to be signed on
its behalf by the undersigned thereunto duly authorized.

                            INSITUFORM TECHNOLOGIES, INC.

                            By s/Anthony W. Hooper
                              ------------------------------
                              Anthony W. Hooper
                              President

Dated: September 10, 1999


                        INDEX TO EXHIBITS


Exhibit        Description
- -------        ------------

99             Press Release of the Registrant issued September 7,
               1999

EX-99.1

                                                       Exhibit 99


     Insituform Technologies, Inc. Awarded 9.5 Million in Patent
                        Infringement Case


     CHESTERFIELD, MO. -- Sept. 7, 1999 -- Insituform Technologies,
Inc. (NASDAQ National Market: INSUA) ("Insituform") announced today
that it has been awarded $9.5 million in a final judgement in its
patent infringement suit with FirstLiner U.S.A.

     The United States District Court for the Southern District of
Texas rendered its final judgment on damages in the patent suit
brought by Insituform against FirstLiner U.S.A. (formerly known as
InLiner U.S.A.), CAT Contracting, Inc. and others.  The total
damages awarded were $9.5 million.  The Court also named Mr. Giulio
Catallo, the owner and CEO of CAT Contracting, Inc. and FirstLiner
U.S.A., as an individual party defendant, making him personally
liable.  Insituform is unable at this time to ascertain the ability
of the defendants to satisfy the judgment or whether defendants
will elect to appeal.

     Commenting, Anthony W. Hooper, Chairman of the Board,
President and Chief Executive Officer of Insituform, stated: "We
are prepared to compete with anyone in the marketplace on a level
playing field.  However, those who seek to profit unfairly from the
investments Insituform has made in technology by using our patented
or proprietary methods have to face the consequences."

     Insituform Technologies, Inc. is a leading worldwide provider
of proprietary technologies, and services for rehabilitating sewer,
water and other underground piping systems without digging and
disruption.  More information about the Company can be found on its
Internet site of www.insituform.com.

     CONTACT:  Insituform Technologies, Inc.
               Robert L. Kelley, Vice President & General Counsel
               636/530-8000