| Contract (PO) # | Disclosure # | Award Date | Start Date | End Date | Department | Original Award Amount | 
|---|---|---|---|---|---|---|
| 
 
	
		C029766A
	
	
 
			 | 07/23/2001 | 07/24/2001 | 07/23/2002 | CHICAGO DEPARTMENT OF TRANSPORTATION | $363,582.99 | 
| Modification # | Description | Disclosure # | Award Date | Start Date | End Date | Department | Amount | 
|---|---|---|---|---|---|---|---|
| CONSTRUCTION ENGINEERING SERVICE:83RD ST VIADUCT OVERI-90/94 | 09/22/2003 | CHICAGO DEPARTMENT OF TRANSPORTATION | $65,588.60 | ||||
| 
 
	
		C029766AC110881
	
	
 
			 | CONSTRUCTION ENGINEERING SERVICE:83RD ST VIADUCT OVERI-90/94 | 07/23/2001 | 07/24/2001 | 07/23/2002 | CHICAGO DEPARTMENT OF TRANSPORTATION | ($22,293.65) |