Great Lakes Dredge & Dock Corporation Common Stock UNDERWRITING AGREEMENT dated [ ], 2007 Banc of America Securities LLC Lehman Brothers Inc.Great Lakes Dredge & Dock CORP • July 20th, 2007 • Heavy construction other than bldg const - contractors • New York
BANC OF AMERICA SECURITIES LLC LEHMAN BROTHERS INC. As Representatives of the several Underwriters c/o BANC OF AMERICA SECURITIES LLC 9 West 57th Street New York, NY 10019 and c/o LEHMAN BROTHERS INC. 745 Seventh Avenue New York, NY 10019
