20061146 Ver 5_Emails_20100824

Q 06-- I l C
Mcmillan, Ian
From: Amanda C. Boone [[e-mail]]
Sent: Monday, August 23, 2010 1:47 PM
To: Mcmillan, Ian
Cc: Keith P. Billy
Subject: RE: Park West Village
Attachments: Amanda C Boone PE3.vcf
Ian,
I wanted to follow up with you regarding the culvert crossing along Bristol Creek Drive at Park West Village.
The Town is nearing approval of the construction drawings for this project. As part of the construction review
we are evaluating the culvert calculations as related to sizing and our requirements. Any additional
requirements, such as the 1' bury for fish passage or the bend in the culvert, we leave to DWQ for enforcement
under the issued permit. The reasoning for making a clear distinction in responsibilities goes back to past
issues with a culvert crossing as part of the Wal-mart project at Shiloh Crossing. If you have any questions or
if I can be of any assistance please let me know.
Thank you,
4fr4 da d &MM, P4
Amanda C. Boone, PE
Town of Morrisville
Engineer
[phone] Work
150 *26*37105 Other
ABoone @townofmorrisvMe, org
260 Town Mall Drive, Suite B
f Morrisville, NC 27560
www, townofmorrisville. org
Please note that email sent to and from this address is subject to the North Carolina Public Records Law and may be
disclosed to third parties.
From: Mcmillan, Ian [mailto:[e-mail]]
Sent: Thursday, August 19, 2010 1:31 PM
To: Amanda C. Boone
Subject: RE: Park West Village
I have not heard anything either. The DWQ position is the same as stated in my email below. - Ian McMillan
Ian J. McMillan, PWS, GISP
NCDENR/Division of Water Quality
Acting Supervisor - 401/Wetlands Permitting and Oversight Unit
2321 Crabtree Blvd. Suite 250
Raleigh, NC 27604
Office: [phone]
Fax: [phone]
Email: ian.mcmillanAncdenr.P_ov
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Amanda C. Boone [mailto:[e-mail]]
Sent: Thursday, August 19, 2010 10:11 AM
To: Mcmillan, Ian
Cc: Keith P. Billy; Gyamfi, Joseph
Subject: RE: Park West Village
Ian,
I have not seen any correspondence since your email on Friday. Is DWQ okay with the culvert turn or has
Withers & Ravenel been told they will need to revise it? Let me know.
Thank you,
Arada a.. are PE
,
err 4, Amanda C. Boone, PE
Town of Morrisville
Engineer
.1 •??' [phone] work
150"26*37105Other
[e-mail]
260 Town Hal Drive, Suite B
Morrisville, NC 27560
www.t:)wnofiwrisvMe.org
Please note that email sent to and from this address is subject to the North Carolina Public Records Law and may be
disclosed to third parties.
From: Mcmillan, Ian [mailto:[e-mail]]
Sent: Friday, August 13, 2010 3:34 PM
To: Miller, Daniel; Amanda C. Boone
Cc: Keith P. Billy; Tom Lowell'; Gyamfi, Joseph
Subject: RE: Park West Village
Thanks Dan, Joseph Gyamfi (DWQ Storm Water Engineer) and myself reviewed (or re-reviewed) the information
regarding this crossing and have the following comments:
The project narrative submitted by Carolina Ecosystems, Inc. on May 18, 2010, did not mention the change to
culvert design and it is the opinion of this Office that the angled culvert was not clearly presented on the
submitted plans.
It is unclear why the angled culvert was specified at this location unless it was to stay below mitigation
thresholds.
We have concerns about the stability of the angled culvert at this location based on the reported volume and
velocity calculations and believe a less angled culvert may be more stable and reliable.
Ian J. McMillan, PWS, GISP
NCDENR/Division of Water Quality
Acting Supervisor - 401/Wetlands Permitting and Oversight Unit
2321 Crabtree Blvd. Suite 250
Raleigh, NC 27604
Office: [phone]
Fax: [phone]
Email: ian.mcmillanAncdenr.gov
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Miller, Daniel [mailto:[e-mail]]
Sent: Friday, August 13, 2010 12:14 PM
To: 'Amanda C. Boone'; Mcmillan, Ian
Cc: Keith P. Billy; 'Tom Lowell'
Subject: RE: Park West Village
All,
Attached is the impact map that was submitted to DWQ for this crossing showing the 6'x3' box
culvert. Calculations were not submitted to DWQ but were performed in support of this solution and
submitted to the Town. We have since increased the culvert to be a 6'x4' culvert to allow the 1' of
bury for aquatic passage. The bend is necessary to stay within the limits of disturbance and maintain
the upstream and downstream locations of the natural stream.
The Town was not copied on the submittal to DWQ for the 401, but they have the approved
permit. What we represent on the plans submitted to the Town is the same as was submitted to and
approved by DWQ. The Town has the supporting calculations for the design of the culvert. Should
you need anything further or wish to discuss, feel free to call at anytime.
Thank you,
Dan
Dan Miller, PE
WITHERS & RAVENEL
111 MacKenan Drive I Cary, NC 27511
tel: [phone] fax: [phone]
direct: 919.535.5149
From: Amanda C. Boone [mailto:[e-mail]]
Sent: Friday, August 13, 2010 11:32 AM
To: Mcmillan, Ian
Cc: Miller, Daniel; Keith P. Billy
Subject: Park West Village
Ian,
Here is one of the sheets that shows the culvert crossing. Although this is probably not the best sheet showing
this crossing Dan Miller with Withers & Ravenel could provide you with any sheets that you need. I have also
included the information on the culvert bend that they are proposing. Please let me know your thoughts.
Thank you,
ANNA e. &WO, Pf
\k Amanda C. Boone, PE
Town of MorriMle
Eng9eer
(919) 963-16216 Work

150*26*37105Other
[e-mail]
260 Town Hal Drive, Suite B
Mornsvifle, NC 27560
www.townofTnorrisvie.org
Please note that email sent to and from this address is subject to the North Carolina Public Records Law and may be
disclosed to third parties.