Alexander Ct-CS070711
Page 1 0[2
Ken Griffin - RE: Grapevine Creek - City Effective Modeling
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From:
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Date:
Subject:
Attachments:
< brad .pickering@kimley-horn.com>
<kgriffin@ci.coppell.tx.us>
7/11/20078:15 AM
RE: Grapevine Creek - City Effective Modeling
cityEX.dat; CITYEX.OUT
Ken,
Mike Boyd forwarded the attached model for Grapevine Creek to me. It is titled Coppell City-Wide Storm Water
Management Study and is dated Dee, 2003 by Halff Associates. It appears that this particular model was
updated to reflect an expanded Belt Line Road crossing of Grapevine Creek. That crossing is just outside the
Coppelllimits, so it's possible it was submitted to another City.
I believe NDMCE's intent is to rerun the model with new Q's to get ultimate water surface elevations. The model
that was submitted by Mike Boyd via email on Monday included ultimate flows. However, the modeling was not
the most recent, but was from the first submittal. I have contacted Mike Boyd and he is working on getting the
correct model to me. I'll let you know when I receive it.
Thanks,
Brad W Pickering, EIT (TX), CFM
Kimley-Horn and Associates, Inc.
From: Ken Griffin [mailto:kgriffin@ci.coppell.tx.us]
Sent: Tuesday, July 10, 2007 4:43 PM
To: Pickering, Brad
Subject: Re: Grapevine Creek - City Effective Modeling
Brad
I left Mike a voice mail. We do not have any modeling here at the City. I assumed he would just increase the Q
and rerun his model to give us an ultimate elevation so we could set finish floors.
Ken Griffin, P. E.
Director of Engineering/Public Works
972- 304- 3686
kgriffin@ci.coppell.tx.us
>>> <brad.pickering@kimley-horn.com> 7/10/2007 1:48 PM >>>
Ken,
Mike Boyd has a question about the City effective modeling. Can you please email to me the most recent City
effective modeling for Grapevine Creek that should be used for ultimate conditions hydraulic modeling.
Thanks,
Brad Pickering, EIT (TX), CFM
Kimley-Horn and Associates, Inc.
12700 Park Central Drive, Suite 1800
Dallas, Texas 75251
file://C:\Documents and Settings\rbrother\Local Settings\Temp\XPgrpwise\469491BECity_oo. 1/812008
Page 2 of2
p: (972) 776-1781
f: (972) 239-3820
e: bracj.j:lic::l<ering@kimley-horn.c::om
file://C:\Documents and Settings\rbrother\Local Settings\Temp\XPgrpwise\469491BECity_... 1/8/2008
Page 1 of2
Ken Griffin - RE: Grapevine Creek - City Effective Modeling
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From:
To:
Date:
Subject:
Ken Griffin
brad. pickering@kimley-horn.com
7/11/20079:08 AM
RE: Grapevine Creek - City Effective Modeling
Brad
Thanks for the update.
ken g
>>> <brad.pickering@kimley-horn.com> 7/11/20078:14 AM >>>
Ken,
Mike Boyd forwarded the attached model for Grapevine Creek to me. It is titled Coppell City-Wide Storm Water
Management Study and is dated Dee, 2003 by Halff Associates. It appears that this particular model was
updated to reflect an expanded Belt Line Road crossing of Grapevine Creek. That crossing is just outside the
Cappel I limits, so it's possible it was submitted to another City.
I believe NDMCE's intent is to rerun the model with new Q's to get ultimate water surface elevations. The model
that was submitted by Mike Boyd via email on Monday included ultimate flows. However, the modeling was not
the most recent, but was from the first submittal. I have contacted Mike Boyd and he is working on getting the
correct model to me. I'll let you know when I receive it.
Thanks,
Brad W. Pickering, EfT (TX), CFM
Kimley-Horn and Associates, Inc.
From: Ken Griffin [mailto:kgriffin@ci.coppell.tx.us]
Sent: Tuesday, July 10, 2007 4:43 PM
To: Pickering, Brad
Subject: Re: Grapevine Creek - City Effective Modeling
Brad
I left Mike a voice mail. We do not have any modeling here at the City. I assumed he would just increase the Q
and rerun his model to give us an ultimate elevation so we could set finish floors.
Ken Griffin, p, E.
Director of Engineering/Public Works
972-304-3686
kgriffin@ci.coppell.tx.us
>>> <brad.pickering@kimley-horn.com> 7/10/2007 1:48 PM >>>
Ken,
Mike Boyd has a question about the City effective modeling. Can you please email to me the most recent City
effective modeling for Grapevine Creek that should be used for ultimate conditions hydraulic modeling.
file://C:\Documents and Settings\rbrother\Local Settings\Temp\XPgrpwise\46949EIBCity_... 1/8/2008
Page 2 0[2
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: Qr<:Ld---Qickering@kimley-horn.com
file://C:\Documents and Settings\rbrother\Local Settings\Temp\XPgrpwise\46949EIBCity_... 1/812008