Clay, As we discussed earlier today, several quantities from the base bid (five, actually) were changed as a result of the changes in Addendum #5. These changes have been summarized in the attached document. Fortunately, no quantities were changed as a result of Addendum #4. Should you need additional information, please don't hesitate to contact me immediately. Eric Eric S. Christiansen, P.E., SECB, LEED AP Senior Structural Engineer HALFF ASSOCIATES, INC. 1201 North Bowser Road Richardson, Texas 75081 Phone 214-346-6284 Fax 214-739-0095 Cell 972-955-2996 www.halff.com