Response to RFI No. 12		
As of 19-Jun-2009 7:55 AM CT	
Vitruvian Infrastructure Phase 1B
4010 Marsh Lane Addison, Texas 75001 
Project Number: 1308B
	

 	Status: Outstanding	  	
Subject	SD manhole near Marsh Ln.  	
Reason Code   	 None 	 
Question	 The existing 54" RCP and the proposed 48" RCP lines at station 0+00 near Marsh Ln on line SD-D1 are meeting at a skewed angle. Due to this, NTC does not believe a 6x6 Type
B manhole will suffice at this crossing.

 
Proposed Solution	 NTC recommends installing an 8x6 type B manhole over the existing 54" to accomodate the skewed crossing. NTC will install under NTCOG specifications and note the change
on our as-builts. There will no additional charge for the added size. 	
Attached Files	 (none)	
 	 Section:   	 2 - Sitework 	 Int. Tracking #: 		
  	  	 Days Elapsed: 	1	 
From: 	Andrew Rolph 	 Originated: 	18-Jun-2009 5:59 PM CT	 
To: 	Jennifer Haynes, PE (First Recipient)	 Requested By:   	 21-Jun-2009 12:00 AM CT 
(Original 21-Jun-2009 5:51 PM CT)	 
Copy to:	  

Nick Jacob	Jennifer Haynes, PE	
Wade Geistweidt	Bruce Dunne	
Craig Benkdorfen	 	

Additional Info	
	
Proposed Solution Impact	 Critical Path?   	 No 	   	  	 
Cost Change:   	 None	 Time Change:   	 None 	
Discipline Code:  	 Civil 	  	  	 
Drawing Numbers:  	 38 	 Needs Drawing Change?  	 Yes 	 

History (Chronological Order)	
	
Type	 Response 	
Billable	 n/a 	
Memo	 We agree with the proposed solution. 	 
Attached Files	 (none)	
 	 From: 	Joel Massey	 Sent: 	19-Jun-2009 7:55 AM CT	 
To: 	Andrew Rolph	 Requested By:    	21-Jun-2009 12:00 AM CT	 
Copy to:  	  

Nick Jacob	Jennifer Haynes, PE	
Wade Geistweidt	Bruce Dunne	
Craig Benkdorfen	Clay Barnett	

Final Response (Closing) 	
	
This item is still open. No final response to display.

   

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