20211123 Ver 1_More Info Received_20211012

Strickland, Bev
From: Don Sever, PE <[e-mail]>
Sent: Tuesday, October 12, 2021 11:23 AM
To: Cohn, Colleen M; Norton, April R CIV USARMY CESAW (USA)
Subject: RE: [External] RE: Highland View Subdivision
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Colleen,
When I stated the roadway is currently 50 feet wide it was referring to the width of the maintained right of way by
NCDOT. The existing roadway is roughly 14' of gravel with graded shoulders and utilities outside the graded shoulder
located on both sides of the roadway.
I am presently working with NCDOT to see if we can change the graded shoulder to 4' and eliminate sidewalk on one
side of the roadway. We hope to get you revised information either today or tomorrow.
The grading for the roadway sets the elevations for the sidewalk height. If the sidewalk weren't required, the grading
would be at least 6' narrower than what is shown.
Thanks Don
Don Sever, PE
Senior Project Manager
Tel: [phone] x3239
Fax: [phone]
T
DESIGN AND ENCNEERIN SERVICES
EEO
Tide
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From: Cohn, Colleen M <[e-mail]>
Sent: Monday, October 11, 2021 5:04 PM
To: Don Sever, PE <[e-mail]>; Norton, April R CIV USARMY CESAW (USA)
<[e-mail]>
Subject: RE: [External] RE: Highland View Subdivision
Don,
1

I am not understanding. Your application states that the road is currently 50 feet wide. Your new impact maps show 20
feet of road, plus 12 feet of grass, plus 10 feet of sidewalk, plus 1 foot shoulders on each side (2 feet) for a total of 44
feet wide, which should fit within the footprint of the existing use. I'm not seeing that on the map. Your map has the
sidewalk on the eastern side of the road inside the buffer impacts but outside of the buffer impacts (within the existing
use) on the western side. Your maps also indicate additional impacts outside of the 50 foot wide existing road.
Does the current road have graded shoulders? What does the current cross section look like versus the proposed? Is it
required to have a sidewalk on both sides of the street? The grading appears to be due to the road crossing itself, not
the sidewalk. Please provide more details explain how these impacts are occurring solely from the sidewalk(s).
Colleen Cohn
Environmental Specialist II
North Carolina Department of Environmental Quality
Division of Water Resources
Raleigh Regional Office
380o Barrett Drive
Raleigh, NC 27609
Office: 919-791-4258
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: Don Sever, PE [mailto:[e-mail]]
Sent: Monday, October 11, 2021 11:41 AM
To: Cohn, Colleen M <[e-mail]>; Norton, April R CIV USARMY CESAW (USA)
<[e-mail]>
Subject: RE: [External] RE: Highland View Subdivision
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Colleen,
All of the impacts are for the sidewalk in the buffer. We have revised the exhibit to show the sidewalk in plan and
section view. If this sufficient information to show that the buffer impact is due to the construction of the sidewalk? If
so, does this remove the requirement for buffer mitigation?
Thanks Don
Don Sever, PE
Senior Project Manager
Tel: [phone] x3239
Fax: [phone]
T
DESIGN AMR ENGINEERING SERVICES
Ti rip
2

From: Cohn, Colleen M <[e-mail]>
Sent: Monday, October 11, 2021 9:27 AM
To: Don Sever, PE <[e-mail]>; Norton, April R CIV USARMY CESAW (USA)
<[e-mail]>
Subject: RE: [External] RE: Highland View Subdivision
Don,
There is a section of the riparian buffer rules that covers sidewalks, but you would need to clearly show what impacts
are for the sidewalk versus the road crossing and clearly specify the width of the sidewalk.
Your current impact maps and impact tables indicate that all of the buffer impacts for Exhibit 3 are for the road crossing.
Deemed
Allowable
Allowable
Upon
Authorization
Allowable will.
htiTigFetion Upon.
ALLthorilatiOIL
Prohibited
(jj Greanvoys. Irai]s. sidewalks or linear
p deslriaaticycle transportation systeuss:
(i) In Zone ; provided that Do built upon area is
attded. within the riparian buffer
(ii) In Zone 1 provided that ila built upon area is
added within the riparian buffer and the
installation does aot result in the removal of
tree(s)
ail) When built iipgn area is added [0 the ripare3eL
buffer- eglral ra or less than 10 feet wide with
rwo foot wide shouiders. Shall be located
outside Zone I uniess Ihere is ao praclieal
alternative
X
X
X
(LV1 When Witt upon area is added to the riparian
buffer. greater than 10 feet wide with two foot
7C
}ride shoulders. b lI be 1acatetf 4nlrside Zone 1
Tuiia sg r]ure is eo practice I teihernaEive
Colleen Cohn
Environmental Specialist II
North Carolina Department of Environmental Quality
Division of Water Resources
Raleigh Regional Office
380o Barrett Drive
Raleigh, NC 27609
Office: 919-791-4258
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: Don Sever, PE [mailto:[e-mail]]
Sent: Friday, October 8, 2021 3:33 PM
To: Norton, April R CIV USARMY CESAW (USA) <[e-mail]>; Cohn, Colleen M
<[e-mail]>
Subject: RE: [External] RE: Highland View Subdivision
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April,
3

I'm not sure where the buffer would be to calculate the impacts right now. I have an inquiry into NCDOT if we can move
the sidewalk to up against the edge of pavement to cut down the fill width by 10'. I think this would lessen the buffer
impacts the most. I will advise as to what they say next week.
Thanks Don
Don Sever, PE
Senior Project Manager
Tel: [phone] x3239
Fax: [phone]
gni
EEO
II)ESIR AND ENGINEERING SERVICES
Title
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From: Norton, April R CIV USARMY CESAW (USA) <[e-mail]>
Sent: Friday, October 08, 2021 3:16 PM
To: Don Sever, PE <[e-mail]>; Cohn, Colleen M <[e-mail]>
Subject: RE: [External] RE: Highland View Subdivision
Hi Don,
Thank you for taking the time to revise the plan sheet to address additional concerns. The Corps would not recommend
increasing stream impacts for stream relocation (channelization) when it is not necessary. You would have to
demonstrate additional avoidance and minimization efforts. What are the proposed buffer impacts with this new
alignment?
Thanks,
April
April R. Norton
Regulatory Division
US Army Corps of Engineers
CE-SAW-RG-R
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Phone: [phone], Ext. 57
Fax: [phone]
Email: [e-mail]
From: Don Sever, PE <[e-mail]>
Sent: Friday, October 8, 2021 1:31 PM
To: Cohn, Colleen M <[e-mail]>
4

Cc: Norton, April R CIV USARMY CESAW (USA) <[e-mail]>
Subject: [Non-DoD Source] RE: [External] RE: Highland View Subdivision
Colleen,
With this scenario we are making the pipe crossing more perpendicular (showing a 70 degree angle). We would go
upstream and relocate the stream to this new location. This increases the stream impact to 104'. Is this acceptable to
the state where we won't have to do any buffer mitigation?
April, do you see any issues with this?
Thanks Don
Don Sever, PE
Senior Project Manager
Tel: [phone] x3239
Fax: [phone]
T
DESIGN AND ENGINEERING SERVICES
EEO
riiie
-r
From: Cohn, Colleen M <[e-mail]>
Sent: Thursday, October 07, 2021 3:51 PM
To: Don Sever, PE <[e-mail]>
Cc: Norton, April R CIV USARMY CESAW (USA) <[e-mail]>
Subject: RE: [External] RE: Highland View Subdivision
Mitigation is 3:1 for Zone 1 impacts and 1.5:1 for Zone 2 impacts for the Neuse River Basin. [15A NCAC 02B .0295(e)]
Colleen Cohn
Environmental Specialist II
North Carolina Department of Environmental Quality
Division of Water Resources
Raleigh Regional Office
380o Barrett Drive
Raleigh, NC 27609
Office: 919-791-4258
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: Don Sever, PE [mailto:[e-mail]]
Sent: Thursday, October 7, 2021 3:28 PM
To: Cohn, Colleen M <[e-mail]>
Cc: Norton, April R CIV USARMY CESAW (USA) <[e-mail]>
Subject: RE: [External] RE: Highland View Subdivision
5

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Colleen,
we have 4279 SF of zone 1 and 2067 SF of zone 2 impacts for the crossing. Is there any ratio that is needed for the
buffer mitigation?
Thanks Don
Don Sever, PE
Senior Project Manager
Tel: [phone] x3239
Fax: [phone]
T
OESIGR AND ENGINEERING SERVICES
EEO
Titie
yr
From: Cohn, Colleen M <[e-mail]>
Sent: Thursday, October 07, 2021 2:02 PM
To: Don Sever, PE <[e-mail]>
Cc: Norton, April R CIV USARMY CESAW (USA) <[e-mail]>
Subject: RE: [External] RE: Highland View Subdivision
Don,
The Division of Water Resources is a separate entity. Please provide the Division with details explaining how this feature
has avoided and minimized impacts to surface waters and wetlands and details showing the provisions to ensure the
remaining wetlands continue to support existing uses and aquatic life. [15A NCAC 02H .0506(b)(1)]
The impact maps indicate that there are buffer impacts outside of the footprint of the existing road. Only the portion of
the riparian buffer that contains the footprint of the existing and ongoing use is exempt from the buffer rules. [15A
NCAC 02B .0714(6)(c)]
Colleen Cohn
Environmental Specialist II
North Carolina Department of Environmental Quality
Division of Water Resources
Raleigh Regional Office
380o Barrett Drive
Raleigh, NC 27609
Office: 919-791-4258
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.
6

From: Don Sever, PE [mailto:[e-mail]]
Sent: Thursday, October 7, 2021 11:51 AM
To: Cohn, Colleen M <[e-mail]>
Cc: Norton, April R CIV USARMY CESAW (USA) <[e-mail]>
Subject: RE: [External] RE: Highland View Subdivision
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Colleen,
When talking with April about this wetland impact, we mentioned that the location of the pond was selected to
minimize the impact to the wetlands given the topography constraints. The roadway connection to the south was
required by Durham County for public safety purposes which locked in that location. The wetland delineation showed a
narrow band that we felt was the best location to construct a stormwater device that has minimal impacts and would
allow to provide for hydrologic connectivity to the wetlands. The total wetland impact at this location was 3,237 SF or
0.07 acres.
For exhibit 3, we don't understand why buffer mitigation is required. We are placing the culvert in the exact location
that has existed for over 20 years (if not longer). For us to modify the crossing to perpendicular would require additional
stream impacts to move the stream channel to a perpendicular location. We feel that there are less environmental
impacts to this location than it is to relocate the stream. We are also using baffles in the pipe to maintain the natural
stream channel as best we can. If you feel we still need buffer mitigation, please let us know.
Thanks Don
Don Sever, PE
Senior Project Manager
Tel: [phone] x3239
Fax: [phone]
DESIGN AND ENGINEERING S
19© r+r
From: Cohn, Colleen M <[e-mail]>
Sent: Thursday, October 07, 2021 11:15 AM
To: Don Sever, PE <[e-mail]>
Cc: Norton, April R CIV USARMY CESAW (USA) <[e-mail]>
Subject: RE: [External] RE: Highland View Subdivision
7

Exhibit 1- Please provide more details regarding avoidance and minimization of wetland impacts for this project. [15A
NCAC 02H .0506(b)(1)] This Office believes that the Stormwater Pond on Exhibit 1 can be moved or reconfigured to
avoid the impacts to the wetlands. Please revise the plans to avoid the impacts or provide a detailed explanation of why
this plan for the activity cannot be practically accomplished, reduced, or reconfigured to avoid impacts to the wetland.
Exhibit 3- The buffer impacts requested are impacts other than a perpendicular crossing of a stream or other surface
water. [15 A NCAC 02B .0714] Buffer mitigation is required for the proposed buffer impacts. You must seek mitigation
from a private mitigation bank and if not available, then the NC Division of Mitigation Services can be contacted. Please
provide a statement of availability for these impacts.
Colleen Cohn
Environmental Specialist II
North Carolina Department of Environmental Quality
Division of Water Resources
Raleigh Regional Office
380o Barrett Drive
Raleigh, NC 27609
Office: 919-791-4258
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: Don Sever, PE [mailto:[e-mail]]
Sent: Monday, September 20, 2021 3:35 PM
To: Cohn, Colleen M <[e-mail]>
Cc: Norton, April R CIV USARMY CESAW (USA) <[e-mail]>
Subject: RE: [External] RE: Highland View Subdivision
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It is gravel, and will be paved to a 20' width.
Thanks Don
Sent from Mail for Windows
Don Sever, PE
Senior Project Manager
Tel: [phone] x3239
Fax: [phone]
T
DESIGN AND ENGINEERING SERVICES
8

From: Cohn, Colleen M
Sent: Monday, September 20, 2021 3:33 PM
To: Don Sever, PE
Cc: Norton, April R CIV USARMY CESAW (USA)
Subject: RE: [External] RE: Highland View Subdivision
Hey Don,
I had a few minutes this afternoon, so I started looking at this project again before I spend tomorrow in the field.
In the application, you state that the current Terry Road is "unimproved a 50' wide corridor, and will be improved to a
20' wide pavement with graded shoulders." What do you mean by "unimproved"? What is currently there? Is the road
dirt or gravel?
Thanks!
Colleen Cohn
Environmental Specialist II
North Carolina Department of Environmental Quality
Division of Water Resources
Raleigh Regional Office
380o Barrett Drive
Raleigh, NC 27609
Office: 919-791-4258
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: Don Sever, PE [mailto:[e-mail]]
Sent: Friday, September 3, 2021 1:46 PM
To: Cohn, Colleen M <[e-mail]>
Cc: Norton, April R CIV USARMY CESAW (USA) <[e-mail]>
Subject: [External] RE: Highland View Subdivision
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Colleen,
Thanks for the email. I needed to check on a couple of things before I got back to you. We have concurrently addressing
your review comments and April's comments.
Regarding your comment, Exhibit 3 is showing the existing roadway culvert being replaced. The roadway was built prior
to any buffer rules being in effect. The existing pipe angle skew is 50 degrees. To make the culvert crossing more
perpendicular, we would have to relocate the stream. We didn't think that was a very good solution so we decided to
keep the pipe at its present angle. Reviewing your comment, we are showing the wetland impacts but failed to realize
that the buffer still exists even with this impact. The attached exhibit shows the revision. You mentioned about the
crossing of streams being allowable with mitigation. Is mitigation required in this instance?
On exhibit 5, since the roadway existed prior to the buffer rules, the zone 2 buffer stops where the maintenance ends
for the existing roadway. We have determined that to be approximately 30' from the centerline at this location.
Does this address your questions?
9

Thanks Don
Don Sever, PE
Senior Project Manager
Tel: [phone] x3239
Fax: [phone]
EEO
riiie
-r
N A D ENGINEERING VICES
From: Cohn, Colleen M <[e-mail]>
Sent: Wednesday, September 01, 2021 4:35 PM
To: Don Sever, PE <[e-mail]>
Cc: Norton, April R CIV USARMY CESAW (USA) <[e-mail]>
Subject: Highland View Subdivision
Mr. Sever,
I am reviewing the application for the above reference project, and in order to complete the review process, some
additional information is required:
1. Please provide the Division a copy of your response to the August 30, 2021 email from the U.S. Army Corps of
Engineers requesting additional information. [15A NCAC 02H .0502(c)]
2. The road crossing in Exhibit 3 does not appear to be a perpendicular crossing (between 75 and 105 degrees),
and it is unclear from the plans if there are any buffer impacts at this crossing. Road impacts other than
perpendicular crossings of streams are allowable with mitigation upon authorization. Please provide more detail
about the angle of this crossing and buffer impacts. [15A NCAC 02B .0714(11)]
3. I am having difficulty seeing where Zone 2 of the riparian buffer is located in relation to the proposed
impervious roadway in Exhibit 5. Please provide an updated plan with the edges of Zone 2 and the proposed
roadway clearly defined. [15A NCAC 02B .0611(b)(1)(F)]
Thank you,
Colleen Cohn
Environmental Specialist II
North Carolina Department of Environmental Quality
Division of Water Resources
Raleigh Regional Office
380o Barrett Drive
Raleigh, NC 27609
Office: 919-791-4258
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.
10

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