Alexander Ct-SY070625
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Ken Griffin - Grapevine Creek LOMR Application
From: <brad.pickering@kimley-horn.com>
To: <ojohnson@ndmce.com>
Date: 6/25/2007 9:37 AM
Subject: Grapevine Creek LOMR Application
CC: <kgriffin@ci.coppell.tx.us>, <mboyd@ndmce.com>
Odalys,
Per our telephone conversation this morning, please email the most recent digital files for the
Grapevine Creek LOMR Application to me. The files contained on the CD in the most recent
submittal do not reflect the modeling in the report. Also, please note the following items as we
discussed:
1. The bridge modeling method used for the Bethel Road crossing of Grapevine Creek in the
revised existing model is not consistent with the imported effective model. The imported
effective model uses the energy method and the revised existing model uses the Yarnell
method.
2. Contraction and expansion coefficients for cross sections 27620 and 27540 in the revised
existing model are not consistent with the imported effective model.
Please provide an explanation as to the differences between the imported effective and
revised existing models. Please provide updated digital files by email if the revised existing
modeling is changed as a result of the above comments. Also, please provide hardcopies of
any modeling and workmaps that change as a result of updated modeling. PDF copies
provided by email will be sufficient.
Thanks,
Brad Pickering, EIT (TX), CFM
Kimley-Horn and Associates, Inc.
12700 Park Central Drive, Suite 1800
Dallas, Texas 75251
p: (972) 776-1781
f: (972) 239-3820
e: brad.pickering@kimley-horn.com
file://C:\Documents and Settings\radloo\Local Settings\Temp\XPgrpwise\467F8CD0City_...1/13/2010