Work order form for construction services, 7 World Trade Center,

NYC 9/11 Public Portal Document

RUG 31 1999 16:28 FR RMBflSSRDQR CON. TO 6694107 P.02/02

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Memorandum Project Nubb and Address: Project N».- 5576A Mayor’s Office of Emergency Management Project Dircclar/Manager: 7 'World Trade Center Meinhardl/Aliotta New l/ork. New York Clleat: Silverstein Properties. Inc. Subject- Change Ordera #79 &. 83. To From Date Prepared Glen Pymento-DCAS/DRES Joseph 1 Aliotta August 11,1999

Per your request, ux have reviewed the above referenced Change Orders for scope and our comments are as follows:

C O. 79 dated 04.13.99:

SHCA sketch FSK-11 dated 08 26 98 provides tlie door anchorage detail for the installation of blast-resistant doors as provided to SHCA from the specified manuficturer. Overly, prior to award of the contract to them. Once awarded and shop drawings submined, Overly requested additional reinforcing plates to be supplied by others in order to meet the specified loading. The reinforcing plates are required to adequately anchor these doors per the manufacturer's requirements

C.O. 83 dated04,26.99:

SHCA drawing .\23-2 and Detail 90-4 indicate a recessed cove light fodure in Reception (23-40) Submitted and reviewed sheet metal shop drawings show an existing duct and some small new ductwork in the area of this cove. Reference is not made as to a conflict nor the flagging of the elevational conflict between the existing ductwork and the light cove indicated as is customary when the sheet metal contractor venflea field conditions versus design intent The conflict was not brought to SHCA's attention until the commencement of the finished ceiling construction in the area. Resoluuon of this field condition required modifying the existing ductwork and the elimination of the cove light fixture to allow for the completion of the finish ceiling construction and as to not impact the scheduled completion of the space. The modifications are required to resolve the field condition.

The above C.O.s are not reviewed for cost since DCAS/DRES normally reviews and venfies costs.

Should you have any questions or comments, please contact me.

CC: M. Schneider-Ambassador Construction

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