Response to RFI No. 30		
As of 6-Nov-2009 11:24 AM CT	
Vitruvian Infrastructure Phase 1B
4010 Marsh Lane Addison, Texas 75001 
Project Number: 1308B
	

 	Status: Outstanding	  	
Subject	Phase 2 paving near future Bella Lane  	
Reason Code   	 None 	 
Question	 Around station 28+67.64, there is a slight discrepency between our proposed pavement grade and the actual existing. The discrepency is very small, but it is worthy of a second
look as we are planning to pave very soon, weather permitting. Please advise on adjusting the following grades to better match existing pavement.


The plan grade at 28+67.64 RT = 569.43 at the gutter
The actual gutter elevation is 569.82 (+0.39')

The plan grade at 28+67.64 LT = 569.87 at the gutter
The actual gutter elevation is 570.05 (+0.18')


 
Proposed Solution	 Adjust grade to better match existing pavement and avoid a potentially steep incline at the east end of Vitruvian Way. 	
Attached Files	 (none)	
 	 Section:   	 3 - Concrete 	 Int. Tracking #: 		
  	  	 Days Elapsed: 	1	 
From: 	Andrew Rolph 	 Originated: 	5-Nov-2009 8:18 PM CT	 
To: 	Jennifer Haynes, PE (First Recipient)	 Requested By:   	 8-Nov-2009 12:00 AM CT 
(Original 8-Nov-2009 8:00 PM CT)	 
Copy to:	  

Andy Nord	Joel Massey	
Nick Jacob	Steven Hines	
Jennifer Haynes, PE	Wade Geistweidt	
Zach Fusilier	Bruce Dunne	
Craig Benckendorf 	Clay Barnett	

Additional Info	
	
Proposed Solution Impact	 Critical Path?   	 Yes 	   	  	 
Cost Change:   	 None	 Time Change:   	 None 	
Discipline Code:  	 Civil 	  	  	 
Drawing Numbers:  	 22 	 Needs Drawing Change?  	 Yes 	 

History (Chronological Order)	
	
Type	 Response 	
Billable	 n/a 	
Memo	 Andrew, I do not follow the stations and elevations you provided. We have rechecked the design intent and do not see any reason to adjust the grade. The proposed grade is intended
to be a little lower than the existing grade. Asphalt pavement areas are shown for transition. Please refer to sheet 22 of the the plans which contains the following:

LEFT - End of Concrete Pavement, Begin Asphalt Pavement, Sta 28+35.16, 33.5' Lt, Top of Pavement=568.25 -- End Asphalt Pavement, Match Existing, Sta 28+95.16, 36' Lt, Top of pavement=
570.75 -- The match existing grade you provided (28' before this station) is consistent with our surveyed grade. This results in a 3.5% grade through the transition with 1.1% grade breaks
on each side. We believe you can construct this transition in an acceptable manor.

RIGHT - End of Concrete Pavement, Begin Asphalt Pavement, Sta 28+40.98, 33.5' Rt, Top of Pavement=568.79 -- End Asphalt Pavement, Match Existing Pavement, Sta 28+77.43, 33.5' Rt, Top
of Pavement=570.26 -- The match existing pavement grade you provided (10' before this station) is consistent with our surveyed grade. This transition is a little shorter because of the
existing driveway to the Lemons Property. This results in a 4.0% grade through the transition with 1.6% grade breaks on each side. We believe you can construct this transition in an
acceptable manor.

Vitruvian Way is planned for extension in the not to distant future which will eliminate these transitions.

Please let me know if you still have any concerns. I would be happy to meet you at the site.

  
Attached Files	 (none)	
 	 From: 	Joel Massey	 Sent: 	6-Nov-2009 11:24 AM CT	 
To: 	Andrew Rolph	 Requested By:    	8-Nov-2009 12:00 AM CT	 
Copy to:  	  

Andrew Rolph	Andy Nord	
Joel Massey	Nick Jacob	
Steven Hines	Jennifer Haynes, PE	
Wade Geistweidt	Zach Fusilier	
Bruce Dunne	Craig Benckendorf 	
Clay Barnett	 	

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

   

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