20140719 Ver 1_Emails_20141203

Burdette, Jennifer a
From: Tew, Keith <Keith.Tew @raleighnc.gov>
Sent: Wednesday, December 03, 2014 10:52 AM
To: Alsmeyer, Eric C SAW; Hy Nguyen
Cc: Du Le; Smith, Cherri L; Burdette, Jennifer a; Higgins, Thomas; Ritchie, Kenneth;
sienkwiczcontracting @nc.rr.com; Sanchez, Cesar; Massengill, Robert
Subject: RE: Van Hanh Temple, Sewer Stream crossing (UNCLASSIFIED)
Attachments: ATT00001.c; ATT00002.htm
Thank you Eric. At this point we are not allowing the aerial stream crossing as currently proposed, for reasons stated
below, pending further investigation by Engineer. In the event an aerial crossing is allowed at the end of day though -
structural supports (pile or pier foundations depending on geotech recommendation) will be required as you have
suggested.
Hy: do you know what the Q25 elevation is? At this point you may want to consider how high you can enter the new MH
to maximize height of crossing above the creek surface. However this would necessitate an ICP revision since the
upstream pipe grades / MH inverts would change & aerial crossing details need to be added, etc -
w
Keith A. Tew, PE
From: Alsmeyer, Eric C SAW [ mai Ito: Eric. C.Alsmeyer @usace. army. miI]
Sent: Wednesday, December 03, 2014 10:31 AM
To: Hy Nguyen; Tew, Keith
Cc: Du Le; Smith, Cherri L; Burdette, Jennifer a; Higgins, Thomas; Ritchie, Kenneth; sienkwiczcontracting @ nc.rr.com;
Sanchez, Cesar; Massengill, Robert
Subject: RE: Van Hanh Temple, Sewer Stream crossing (UNCLASSIFIED)
Classification: UNCLASSIFIED
Caveats: NONE
The Corps' main concern right now would be stability of the site since it is currently under construction. Please make
sure adequate sediment/erosion control measures remain in place to protect the undisturbed wetlands and stream.

crossing such as improved casing and/or structural supports, rather than adding riprap, which would have an
additional damming effect on the stream flow.
The Wilmington District is committed to providing the highest level of support to the public. To help us ensure vve
continue to do so, please complete the Customer Satisfaction Survey located at http://regulatory.usacesurvey.com/.
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EricA|smeyer
Project Manager
From: Hy Nguyen
Sent: Tuesday, December 02, 2014 12:17 PM
To:Tew, Keith
Cm: Du Le; Smith Cherh i; Alsmeyer, Eric C SAW; Bunclette, ]ennhera; Higgins, Thomas; Ritchie, Kenneth;
Sanchez Cesar; MassengiU,Rnbert
Subject: [EXTERNAL] RE: Van Hanh Temple, Sewer Stream crossing
am
Thanks for your email. VVe have ordered the surveying shots on the existing creek and will overlay iton our current
design to see exactly what has been changed and the exact exposure of the encasing over the creekbed. Will keep you
posted.
landscape architecture, civil engineering, & planning
42o Hawthorne Lane, Charlotte, mo2e2o4
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Fromn:Tevx Keith
Sent: Tuesday, December UZ,ZU141U:1OAM
To: Hy Nguyen