Alexander Ct-CS070625
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Ken Griffin - Grapevine Creek LOMR Application
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From:
To:
Date:
Subject:
CC:
<brad.pickering@kimley-hom.com>
<ojohnson@ndmce.com>
6/25120079:37 AM
Grapevine Creek LOMR Application
<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-hQrn,CQrn
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