Lea,

 

I just spoke with Mr. Ron Fredrick.  He said that he submitted a right-of-way permit this morning, but did not submit the other items required for a preconstruction meeting.  I directed
him to the website that lists the items required for a preconstruction meeting and he stated that he would begin working on them and that they were eager to begin construction.

 

If you have any questions, please let me know.

 

Thanks,

Clay Barnett, P.E.

Town Engineer

Town of Addison

16801 Westgrove Drive

Addison, TX 75001-2818

Office: (972) 450-2857

 <http://www.addisongreen.info/> 

 

From: Clay Barnett 
Sent: Thursday, March 17, 2011 9:45 PM
To: Nancy Cline; Lea Dunn
Subject: Fw: Millionair ramp paving

 

Please see below.


Thanks, 
Clay Barnett, P.E. 
Town Engineer 
Town of Addison 
16801 Westgrove Drive 
Addison, TX 75001-2818 
Office: (972) 450-2857 

 

________________________________

From: McIllwain, Frank O. <FOMcIllwain@GarverUSA.com> 
To: LeggettInc@aol.com <LeggettInc@aol.com> 
Cc: ronf@mission-companies.com <ronf@mission-companies.com>; lkadleck@verizon.net <lkadleck@verizon.net>; georges@mission-companies.com <georges@mission-companies.com>; Clay Barnett

Sent: Thu Mar 17 19:02:08 2011
Subject: RE: Millionair ramp paving 

Bill,

 

Three pavement sections are offered in the Reed Engineering calculations.  They are:

Section 1

9” PCC over;

6” Cement-Treated Base over;

6” Compacted Subgrade

Section 2

10” PCC over;

6” Flexible Base over;

6” Compacted Subgrade

Section 3

10” PCC over;

6” Lime-Stabilized Subgrade over;

6” Compacted Subgrade

 

Section 1 or Section 2 comply the design requirements.  Please select either Section 1 or Section 2 to include in the construction plans. 

 

Section 3 is a non-standard design per FAA design methods for two reasons.  The first reason is that FAA design methods require an aggregate base or aggregate subbase course underneath
concrete pavements.  The second reason is that FAA design methods do not allow considering an increase of subgrade strength for lime stabilization. This is supported by page 16 the original
Reed geotechnical report.

 

If Section 1 or Section 2 is included in the plans for construction, all outstanding comments from Garver have been resolved.

 

Thanks, 

Frank

 

 

Frank McIllwain, PE
Garver
972-377-7480

 

From: LeggettInc@aol.com [mailto:LeggettInc@aol.com] 
Sent: Wednesday, March 16, 2011 4:34 PM
To: cbarnett@addisontx.gov; McIllwain, Frank O.
Cc: ronf@mission-companies.com; lkadleck@verizon.net; georges@mission-companies.com
Subject: Millionair ramp paving

 

Good afternoon Clay.

 

    Based on the result of my recent conversation with Frank Mcillwain, I instructed Reed Engineering to 

    re-run FAARFIELD using Mr. Mcillwain's recommendation of k130 modulus and 52 annual GV departures. 

 

    Attached are the three revised pavement options. We elect to use Option #3

 

   Portland Cement Concrete, minimum 28-Day compressive strength of 4,000 psi over

 

   6" Lime-stabilized on-site clay, minimum 6% hydrated lime (by dry weight) compacted to a Minimum 

   95 percent of Modified Proctor (ASTM D 1557) at or above optimum moisture, over

 

   6" subgrade, scarified and re compacted to a minimum of 95 percent Standard Proctor, ASTM D 698

   at or above optimum moisture.

 

   As soon as we receive your approval Lynn Kadleck will adjust and re issue the paving plan. I understand  this modified pavement specification is the only question remaining. 

 

Thanks for your help.

 

 


BILL LEGGETT
WILLIAM LEGGETT ASSOCIATES
4600 Claire Chennault Suite 103
Addison, Texas 75001
Office 972 931 3010 Fax 972 931 3017
leggettinc@aol.com
William.Leggett@sbcglobal.net