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  <p style="border:none;margin:0in 0in .0001pt;padding:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
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  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">UNITED
  STATES</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">SECURITIES
  AND EXCHANGE COMMISSION</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Washington,
  D.C.&#160; 20549</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM&nbsp;8-K</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">CURRENT
  REPORT</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>
  
  <h1 style="font-weight:bold;margin:0in 0in .0001pt;page-break-after:auto;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;">Pursuant to Section&nbsp;13
  or 15(d)&nbsp;of</font></b></h1>
  
  <h1 style="font-weight:bold;margin:0in 0in .0001pt;page-break-after:auto;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;">the Securities Exchange
  Act of 1934</font></b></h1>
  
  <h1 style="font-weight:bold;margin:0in 0in .0001pt;page-break-after:auto;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></b></h1>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date of Report
  (Date of earliest event reported):&#160;&#160; <b>April&nbsp;30, 2008</b></font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <h1 style="font-weight:bold;margin:0in 0in .0001pt;page-break-after:auto;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;">Great Lakes Dredge&nbsp;&amp;
  Dock Corporation</font></b></h1>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact name of
  Registrant as specified in its charter)</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div align="center">
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Delaware</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">001-33225</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">20-5336063</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State or other
    jurisdiction of</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Commission File
    Number)</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(I.R.S. Employer</font></p>
    </td>
   </tr>
   <tr>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Incorporation or
    Organization)</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Identification
    No.)</font></p>
    </td>
   </tr>
  </table>
  
  </div>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">2122 York
  Road</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Oak
  Brook, Illinois 60523</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Address of
  Principal Executive Offices)</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(630)
  574-3000</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Registrant&#146;s
  telephone number, including area code)</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div align="center" style="margin:0in 0in .0001pt;text-align:center;"><hr size="1" width="25%" noshade color="black" align="center"></div>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the appropriate box
  below if the Form&nbsp;8-K filing is intended to simultaneously satisfy the
  filing obligation of the registrant under any of the following provisions:</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font>&#160; Written communications pursuant to Rule&nbsp;425
  under the Securities Act (17 CFR 230.425)</p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font>
  Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR
  240.14a-12)</p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font>&#160; Pre-commencement communications pursuant to Rule&nbsp;14d-2(b)&nbsp;under
  the Exchange Act (17 CFR 240.14d-2(b))</p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font>&#160; Pre-commencement communications pursuant to Rule&nbsp;13e-4(c)&nbsp;under
  the Exchange Act (17 CFR 240.13e-4(c))</p>
  
  <div style="border:none;border-bottom:double windowtext 6.0pt;padding:0in 0in 0in 0in;">
  
  <p style="border:none;margin:0in 0in .0001pt;padding:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  </div>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='',FILE='C:\JMS\Ralex\08-13509-1\task2916237\13509-1-ba.htm',USER='Ralexc',CD='May  5 17:34 2008' -->
  
  
  <br clear="all" style="page-break-before:always;">
  
  
  <div style="font-family:Times New Roman;">
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 1.01. &#160;Entry into
  a Material Definitive Agreement.</font></b></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On
  April&nbsp;30, 2008, Great Lakes Dredge&nbsp;&amp; Dock Corporation (the &#147;Company&#148;),
  the owner of 85% of the outstanding shares of </font>North American Site Developers,&nbsp;Inc., a
  Massachusetts corporation (&#147;NASDI&#148;), and Christopher A. Berardi, the President
  of NASDI, entered into a series of transactions for the purpose of
  restructuring the Company&#146;s arrangements with Mr.&nbsp;Berardi.&#160; Specifically,</p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt 1.5in;text-indent:-.5in;"><font size="2" face="Symbol" style="font-size:10.0pt;">&#183;</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the Company acquired the remaining 15% of NASDI
  from Mr.&nbsp;Berardi, for $5,000 in cash;</p>
  
  <p style="margin:0in 0in .0001pt 1.5in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt 1.5in;text-indent:-.5in;"><font size="2" face="Symbol" style="font-size:10.0pt;">&#183;</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the Company then cancelled approximately $28
  million of intercompany indebtedness owed by NASDI to the Company in exchange
  for additional shares of NASDI;</p>
  
  <p style="margin:0in 0in .0001pt 1.5in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt 1.5in;text-indent:-.5in;"><font size="2" face="Symbol" style="font-size:10.0pt;">&#183;</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the Company then contributed its 100%
  interest in NASDI to a newly formed holding company, NASDI Holdings
  Corporation, a Delaware corporation (the &#147;Holding Corporation&#148;), and NASDI was then
  converted from a Massachusetts corporation into NASDI, LLC, a Delaware limited
  liability company (&#147;NASDI, LLC&#148;).</p>
  
  <p style="margin:0in 0in .0001pt 1.5in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the Limited Liability
  Company Agreement of NASDI, LLC, dated April&nbsp;30, 2008 (the &#147;LLC Agreement&#148;),
  100% of NASDI LLC&#146;s Class&nbsp;A Percentage Interests (as defined in the LLC
  Agreement) were issued to Holding Corporation.&#160;
  In addition, 65% of NASDI LLC&#146;s Class&nbsp;B Percentage Interests (as
  defined in the LLC Agreement) were issued to Holding Corporation and the
  remaining 35% of NASDI, LLC&#146;s Class&nbsp;B Percentage Interests (as defined in
  the LLC Agreement) were issued to Mr.&nbsp;Berardi.&#160; The LLC Agreement provides, among other
  things, that</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt 107.3pt;text-indent:-35.3pt;"><font size="2" face="Symbol" style="font-size:10.0pt;">&#183;</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Unless otherwise required by applicable law
  or the Delaware Limited Liability Company Act, the Class&nbsp;A Members (as
  defined in the LLC Agreement) have the sole right and power to vote on any
  matter submitted for approval or consent of the members and the Class&nbsp;B
  Members (as defined in the LLC Agreement) do not have the right or power to
  vote in respect of such matters;</p>
  
  <p style="margin:0in 0in .0001pt 1.5in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt 107.3pt;text-indent:-35.3pt;"><font size="2" face="Symbol" style="font-size:10.0pt;">&#183;</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>NASDI, LLC is managed by a board of managers
  consisting of three members, two of which that are appointed by Holding
  Corporation and one that is appointed by Mr.&nbsp;Berardi (as long has he
  continues as a Class&nbsp;B Member);</p>
  
  <p style="margin:0in 0in .0001pt 1.5in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt 107.3pt;text-indent:-35.3pt;"><font size="2" face="Symbol" style="font-size:10.0pt;">&#183;</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the Available Cash Flow (as defined in the LLC
  Agreement), other than from a Sale Transaction (as defined in the LLC
  Agreement), will be distributed to the Class&nbsp;B Members in accordance with their
  Class&nbsp;B Percentage Interests on an annual basis; and</p>
  
  <p style="margin:0in 0in .0001pt 1.5in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt 107.3pt;text-indent:-35.3pt;"><font size="2" face="Symbol" style="font-size:10.0pt;">&#183;</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the Available Cash Flow from a Sale Transaction
  will be distributed, first, to the Class&nbsp;A Members until the Class&nbsp;A
  Members have received $28,000,000, and second, to the Class&nbsp;B Members in
  accordance with their Class&nbsp;B Percentage Interests.</p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2</font></p>
  
  <div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='2',FILE='C:\JMS\Ralex\08-13509-1\task2916237\13509-1-ba.htm',USER='Ralexc',CD='May  5 17:34 2008' -->
  
  
  <br clear="all" style="page-break-before:always;">
  
  
  <div style="font-family:Times New Roman;">
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The
  foregoing summary is a description of certain terms of the LLC Agreement and is
  qualified in its entirety by reference to the full text of the LLC Agreement, a
  copy of which is attached hereto as Exhibit&nbsp;10.1 and incorporated herein
  by reference.</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Holding Corporation also
  entered into an Employment Agreement, dated April&nbsp;30, 2008 (the &#147;Employment
  Agreement&#148;), with Mr.&nbsp;Berardi, pursuant to which Mr.&nbsp;Berardi will
  serve as the President of the Holding Corporation.&#160; The Employment Agreement is for a term of one
  year, and it shall automatically renew for additional one year terms unless a
  party provides written notice of termination within thirty days prior to the
  end of any then current term.&#160; Pursuant
  to the Employment Agreement, Mr.&nbsp;Berardi will receive an annual salary of
  $267,000, may participate in all insurance and fringe benefit programs of the
  Holding Corporation and, in the event of a sale of all or a material portion of
  the Holding Corporation or NASDI, LLC, shall be entitled to a cash payment equal
  to 35% of the proceeds received by Holding Corporation in connection with the disposition
  of NASDI LLC or Holding Corporation to any entity not affiliated with the
  Company, but such payment shall not exceed $9,800,000.&#160; Mr.&nbsp;Berardi&#146;s employment is subject to
  non-compete and confidentiality provisions as set forth in the Employment Agreement.&#160; The foregoing summary is a description of
  certain terms of the Employment Agreement and is qualified in its entirety by
  reference to the full text of the Employment Agreement, a copy of which is
  attached hereto as Exhibit&nbsp;10.2 and incorporated herein by reference.</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 9.01.&#160; Financial
  Statements and Exhibits.</font></b></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(d)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Exhibits.</p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="93%" style="border-collapse:collapse;margin-left:.5in;width:93.34%;">
   <tr>
    <td width="13%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:13.22%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit&nbsp;No.</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.14%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="84%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:84.64%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="13%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:13.22%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.14%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="84%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:84.64%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="13%" valign="top" style="padding:0in 0in 0in 0in;width:13.22%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">10.1</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.14%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="84%" valign="top" style="padding:0in 0in 0in 0in;width:84.64%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Limited Liability Company Agreement of NASDI, LLC,
    dated April&nbsp;30, 2008, by and among NASDI Holdings Corporation,
    Christopher A. Berardi and NASDI, LLC.</font></p>
    </td>
   </tr>
   <tr>
    <td width="13%" valign="top" style="padding:0in 0in 0in 0in;width:13.22%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.14%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="84%" valign="top" style="padding:0in 0in 0in 0in;width:84.64%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="13%" valign="top" style="padding:0in 0in 0in 0in;width:13.22%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">10.2</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.14%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="84%" valign="top" style="padding:0in 0in 0in 0in;width:84.64%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Employment Agreement, dated as of April&nbsp;30,
    2008, by and between NASDI Holdings Corporation and Christopher A. Berardi.</font></p>
    </td>
   </tr>
  </table>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3</font></p>
  
  <div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='3',FILE='C:\JMS\Ralex\08-13509-1\task2916237\13509-1-ba.htm',USER='Ralexc',CD='May  5 17:34 2008' -->
  
  
  <br clear="all" style="page-break-before:always;">
  
  
  <div>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <h1 style="font-weight:bold;margin:0in 0in .0001pt;page-break-after:auto;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;">SIGNATURE</font></b></h1>
  
  <h1 style="font-weight:bold;margin:0in 0in .0001pt;page-break-after:auto;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></b></h1>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">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 hereunto
  duly authorized.</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="40%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:40.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="60%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:60.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">GREAT
    LAKES DREDGE&nbsp;&amp; DOCK CORPORATION</font></p>
    </td>
   </tr>
   <tr>
    <td width="40%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:40.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="60%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:60.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Registrant)</font></p>
    </td>
   </tr>
   <tr>
    <td width="40%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:40.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="60%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:60.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="40%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:40.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="60%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:60.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="34%" valign="top" style="padding:0in 0in 0in 0in;width:34.44%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date:&nbsp;&nbsp; May&nbsp;5, 2008</font></p>
    </td>
    <td width="5%" valign="top" style="padding:0in 0in 0in 0in;width:5.56%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>
    </td>
    <td width="60%" colspan="2" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:60.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/
    Deborah A. Wensel</font></p>
    </td>
   </tr>
   <tr>
    <td width="40%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:40.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.66%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name:</font></p>
    </td>
    <td width="53%" valign="top" style="padding:0in 0in 0in 0in;width:53.34%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Deborah
    A. Wensel</font></p>
    </td>
   </tr>
   <tr>
    <td width="40%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:40.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.66%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Title:</font></p>
    </td>
    <td width="53%" valign="top" style="padding:0in 0in 0in 0in;width:53.34%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Senior
    Vice President</font></p>
    </td>
   </tr>
   <tr>
    <td width="40%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:40.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.66%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="53%" valign="top" style="padding:0in 0in 0in 0in;width:53.34%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">and
    Chief Financial Officer</font></p>
    </td>
   </tr>
   <tr height="0">
    <td width="258" style="border:none;"></td>
    <td width="42" style="border:none;"></td>
    <td width="50" style="border:none;"></td>
    <td width="399" style="border:none;"></td>
   </tr>
  </table>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4</font></p>
  
  <div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='4',FILE='C:\JMS\Ralex\08-13509-1\task2916237\13509-1-ba.htm',USER='Ralexc',CD='May  5 17:34 2008' -->
  
  
  <br clear="all" style="page-break-before:always;">
  
  
  <div>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">EXHIBIT INDEX</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="11%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:11.84%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit&nbsp;No.</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.16%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="86%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:86.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="11%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:11.84%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.16%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="86%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:86.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.84%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">10.1</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.16%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="86%" valign="top" style="padding:0in 0in 0in 0in;width:86.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Limited Liability Company Agreement of NASDI, LLC,
    dated April&nbsp;30, 2008, by and among NASDI Holdings Corporation,
    Christopher A. Berardi and NASDI, LLC.</font></p>
    </td>
   </tr>
   <tr>
    <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.84%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.16%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="86%" valign="top" style="padding:0in 0in 0in 0in;width:86.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.84%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">10.2</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.16%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="86%" valign="top" style="padding:0in 0in 0in 0in;width:86.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Employment Agreement, dated as of April&nbsp;30,
    2008, by and between NASDI Holdings Corporation and Christopher A. Berardi.</font></p>
    </td>
   </tr>
  </table>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5</font></p>
  
  <div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='5',FILE='C:\JMS\Ralex\08-13509-1\task2916237\13509-1-ba.htm',USER='Ralexc',CD='May  5 17:34 2008' -->
  
  
  </body>
  
  </html>
metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "a08-13509_18k.htm", "description": "8-K", "secsgml_size_bytes": 38135}]
metadata_filer: {"company-data": {"conformed-name": "Great Lakes Dredge & Dock CORP", "cik": "0001372020", "assigned-sic": "1600", "irs-number": "205336063", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-33225", "film-number": "08804325"}, "business-address": {"street1": "2122 YORK ROAD", "city": "OAK BROOK", "state": "IL", "zip": "60523", "phone": "630-574-3000"}, "mail-address": {"street1": "2122 YORK ROAD", "city": "OAK BROOK", "state": "IL", "zip": "60523"}, "former-company": {"former-conformed-name": "Great Lakes Dredge & Dock Holdings Corp.", "date-changed": "20060808"}}
text: UNITED
  STATES
  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):
  April 30, 2008
  Great Lakes Dredge &
  Dock Corporation
  (Exact name of
  Registrant as specified in its charter)
  Delaware
  001-33225
  20-5336063
  (State or other
    jurisdiction of
  (Commission File
    Number)
  (I.R.S. Employer
  Incorporation or
    Organization)
  Identification
    No.)
  2122 York
  Road
  Oak
  Brook, Illinois 60523
  (Address of
  Principal Executive Offices)
  (630)
  574-3000
  (Registrant's
  telephone number, including area code)
  Check the appropriate box
  below if the Form 8-K filing is intended to simultaneously satisfy the
  filing obligation of the registrant under any of the following provisions:
  o
  Written communications pursuant to Rule 425
  under the Securities Act (17 CFR 230.425)
  o
  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
  240.14a-12)
  o
  Pre-commencement communications pursuant to Rule 14d-2(b) under
  the Exchange Act (17 CFR 240.14d-2(b))
  o
  Pre-commencement communications pursuant to Rule 13e-4(c) under
  the Exchange Act (17 CFR 240.13e-4(c))
  Item 1.01.  Entry into
  a Material Definitive Agreement.
  On
  April 30, 2008, Great Lakes Dredge & Dock Corporation (the "Company"),
  the owner of 85% of the outstanding shares of
  North American Site Developers, Inc., a
  Massachusetts corporation ("NASDI"), and Christopher A. Berardi, the President
  of NASDI, entered into a series of transactions for the purpose of
  restructuring the Company's arrangements with Mr. Berardi.  Specifically,
  ·
  the Company acquired the remaining 15% of NASDI
  from Mr. Berardi, for $5,000 in cash;
  ·
  the Company then cancelled approximately $28
  million of intercompany indebtedness owed by NASDI to the Company in exchange
  for additional shares of NASDI;
  ·
  the Company then contributed its 100%
  interest in NASDI to a newly formed holding company, NASDI Holdings
  Corporation, a Delaware corporation (the "Holding Corporation"), and NASDI was then
  converted from a Massachusetts corporation into NASDI, LLC, a Delaware limited
  liability company ("NASDI, LLC").
  Pursuant to the Limited Liability
  Company Agreement of NASDI, LLC, dated April 30, 2008 (the "LLC Agreement"),
  100% of NASDI LLC's Class A Percentage Interests (as defined in the LLC
  Agreement) were issued to Holding Corporation. 
  In addition, 65% of NASDI LLC's Class B Percentage Interests (as
  defined in the LLC Agreement) were issued to Holding Corporation and the
  remaining 35% of NASDI, LLC's Class B Percentage Interests (as defined in
  the LLC Agreement) were issued to Mr. Berardi.  The LLC Agreement provides, among other
  things, that
  ·
  Unless otherwise required by applicable law
  or the Delaware Limited Liability Company Act, the Class A Members (as
  defined in the LLC Agreement) have the sole right and power to vote on any
  matter submitted for approval or consent of the members and the Class B
  Members (as defined in the LLC Agreement) do not have the right or power to
  vote in respect of such matters;
  ·
  NASDI, LLC is managed by a board of managers
  consisting of three members, two of which that are appointed by Holding
  Corporation and one that is appointed by Mr. Berardi (as long has he
  continues as a Class B Member);
  ·
  the Available Cash Flow (as defined in the LLC
  Agreement), other than from a Sale Transaction (as defined in the LLC
  Agreement), will be distributed to the Class B Members in accordance with their
  Class B Percentage Interests on an annual basis; and
  ·
  the Available Cash Flow from a Sale Transaction
  will be distributed, first, to the Class A Members until the Class A
  Members have received $28,000,000, and second, to the Class B Members in
  accordance with their Class B Percentage Interests.
  2
  The
  foregoing summary is a description of certain terms of the LLC Agreement and is
  qualified in its entirety by reference to the full text of the LLC Agreement, a
  copy of which is attached hereto as Exhibit 10.1 and incorporated herein
  by reference.
  Holding Corporation also
  entered into an Employment Agreement, dated April 30, 2008 (the "Employment
  Agreement"), with Mr. Berardi, pursuant to which Mr. Berardi will
  serve as the President of the Holding Corporation.  The Employment Agreement is for a term of one
  year, and it shall automatically renew for additional one year terms unless a
  party provides written notice of termination within thirty days prior to the
  end of any then current term.  Pursuant
  to the Employment Agreement, Mr. Berardi will receive an annual salary of
  $267,000, may participate in all insurance and fringe benefit programs of the
  Holding Corporation and, in the event of a sale of all or a material portion of
  the Holding Corporation or NASDI, LLC, shall be entitled to a cash payment equal
  to 35% of the proceeds received by Holding Corporation in connection with the disposition
  of NASDI LLC or Holding Corporation to any entity not affiliated with the
  Company, but such payment shall not exceed $9,800,000.  Mr. Berardi's employment is subject to
  non-compete and confidentiality provisions as set forth in the Employment Agreement.  The foregoing summary is a description of
  certain terms of the Employment Agreement and is qualified in its entirety by
  reference to the full text of the Employment Agreement, a copy of which is
  attached hereto as Exhibit 10.2 and incorporated herein by reference.
  Item 9.01.  Financial
  Statements and Exhibits.
  (d)
  Exhibits.
  Exhibit No.
  Exhibit
  10.1
  Limited Liability Company Agreement of NASDI, LLC,
    dated April 30, 2008, by and among NASDI Holdings Corporation,
    Christopher A. Berardi and NASDI, LLC.
  10.2
  Employment Agreement, dated as of April 30,
    2008, by and between NASDI Holdings Corporation and Christopher A. Berardi.
  3
  SIGNATURE
  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 hereunto
  duly authorized.
  GREAT
    LAKES DREDGE & DOCK CORPORATION
  (Registrant)
  Date:   May 5, 2008
  By:
  /s/
    Deborah A. Wensel
  Name:
  Deborah
    A. Wensel
  Title:
  Senior
    Vice President
  and
    Chief Financial Officer
  4
  EXHIBIT INDEX
  Exhibit No.
  Exhibit
  10.1
  Limited Liability Company Agreement of NASDI, LLC,
    dated April 30, 2008, by and among NASDI Holdings Corporation,
    Christopher A. Berardi and NASDI, LLC.
  10.2
  Employment Agreement, dated as of April 30,
    2008, by and between NASDI Holdings Corporation and Christopher A. Berardi.
  5