Mail Stop 7010 March 10, 2006 Dr. Jose Luis Guerrero The ICA Corporation Mineria No. 145 Edificio Central 11800 Mexico City Mexico 	RE:	The ICA Corporation Form 20-F/ A 		Filed July 28, 2005 File # 1-11080 Dear Mr. Guerrero: We have completed our review of your Form 20-F and related filings and have no further comments at this time. If you have any further questions regarding our review of your filings, please direct them to Tricia Armelin, Staff Accountant, at (202) 551-3747 or, in her absence, to the undersigned at (202) 551- 3768. Sincerely, 							John Cash 								Accounting Branch Chief ?? ?? ?? ?? SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549-7010 DIVISION OF CORPORATION FINANCE