20200516 Ver 1_More Info Received Email_20200611

Moore, Andrew W
From: Owen Carson <[e-mail]>
Sent: Thursday, June 11, 2020 8:55 AM
To: Fuemmeler, Amanda J CIV (US); Hamstead, Byron A
Cc: Leslie, Andrea J; Moore, Andrew W; Jason Seickel
Subject: [External] RE: Silver Line: Follow up comments/needed information
Attachments: 190763-Silver_Line_Park_Revised-EC_11-11-19.pdf, LOA Wetland Impacts &
Flood plain.REV.6.10.20.pdf
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Amanda,
Hope you're doing well!
We wanted to address the outstanding comments from your last email prior to our conference call yesterday, and also
Andrew's final comment re: sum totals of lengths - I have copied your and his comments below and we have replied to
the comments in RED; corresponding pdfs are attached.
Andrew (DWR):
Thanks for the call today. There's one more item I need to finalize the 401. The proposed coffer dam is a temporary
impact and is considered a separate impact for accounting purposes from the boulder toe and boat ramp. What is the
length of the proposed coffer dam impact? I assume it is slightly longer than the total impacts for the boulder toe and
boat ramp (241 feet), but need a number from you.
The total temporary impact from the coffer will be 247 LF. This impact will be done in phases. First the coffer will be
used for the boat ramp and the boulder toe on the south/east of the boat ramp, then it will be shifted to the long
section of boulder toe on the north/west side.
Amanda (USACE):
-Please show all impacts on the L04 Wetland Impacts map to include call outs for temporary versus permanent impacts
for the boulder toe, versus boat ramp, versus coffer dams (in addition to wetland impacts). This map should correspond
to an updated impact table from the PCN.
Please see updated Sheet L04, attached. Updated PCN table also attached
-Please clarify why the boulder toe is needed/proposed and include a detail/plan sheet
The boulder toe(s) are necessary to maintain and enhance bank stability and prevent upstream and downstream
erosional issues once the boat ramp is in place. For detail see 1/1-16.3 in the plan set we provided.
- After reading through Byron's/USFWS letter they did not request that a survey for Elktoe be conducted however that
may change once he realizes the coffer dams are in the river. We can talk more about what this would mean
coordination and timing wise but it would have some implications on the project if a survey was required and mussels
were found. With that said, I think it would be beneficial to also address why a coffer dam / in river work is needed in
the first place. I have permitted boat ramps before and they were able to be constructed from high ground so not sure
what the difference is with this one. Again if a survey is required and mussels are located then those are some more
detailed discussions that will be needed.
A coffer dam is needed to satisfy 401 permit requirements; when construction work is proposed below the Ordinary
High Water Mark (OHWM), DWR requires the use of 'work -in -the -dry' techniques to reduce or avoid sedimentation
impacts to the resource. Because we are proposing to install boulder toes below the OHWM both upstream and

downstream of the boat ramp, which are necessary to maintain bank stability and prevent erosional issues once the
ramp is in place, DWR is requiring the use of coffer dams, which we have situated partly in the river based on site
conditions. Per yesterday's discussions, USFWS and NCWRC will soon be coordinating to evaluate the river bed impact
areas for Suitable Habitat for elktoe mussels; if mussels are located within the impact area, streamlined consultation will
occur with those agencies in order to collect and relocate the mussels prior to in -stream work.
-Byron's/USFWS letter recommends surveying for active eagle nesting in the vicinity. This would be a condition of our
permit so a heads up there to go ahead and start coordinating that to determine if an active nest is present and if that
would affect your construction timeframe.
Upon desktop review of available geospatial data, including the NCNHP Element Occurrences layer containing rare
species locations, no known bald eagle nesting sites were found to be located within a meaningful proximity (<4.0 linear
miles) of the site. Furthermore, extensive onsite evaluation of the site as part of the design and planning process
yielded a detailed sealed survey of the site that includes callouts of trees larger than 12" in diameter; these trees are
scattered sporadically across the site and while some occur on the berm, most occupy the margins of the site boundary
or low points along the shoreline of the French Broad River (see attached survey). A simple visual assessment of the
existing trees onsite yielded no observations of bald eagle nests; furthermore, it is our opinion that the species of trees
present onsite, including mainly boxelder and sycamore, are not typically used by bald eagles for nesting purposes
(evergreens extending into the superstory are generally favored). Based on the above evidence, it is our opinion that
there are no bald eagles onsite or nearby, and that proposed project activities are not likely to affect nesting or foraging
grounds for the species.
Furthermore, we are looking forward to Byron and Andrea's coordination and hope that they can complete the Suitable
Habitat survey sooner than later! Regardless of what they find I am excited to be going through this regulatory and
permitting phase of the project, it's new to me and I am learning a lot from the process. It's kind of making me excited
for the future IP work for the Wave Park (is that bad?).
Please let me know if you need any further information or have any other questions.
Thanks!
Owen Carson
Botanist / Senior Ecologist
EQUINOX
Mo
37 Haywood Street, Suite 100
Asheville, NC 28801
[phone] extension 204
COVID-19 FIRM UPDATE:
Our firm is taking every precaution we can in order to keep our clients and staff healthy and safe as the situation with the coronavirus
(COVID-19) continues to develop.
As a result of the Buncombe County "stay home, stay safe" declaration and guidance from NC Governor Cooper, our staff are working
remotely through phase 1. With our technological capabilities, our staff will continue to work every day to meet our client's
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We appreciate your business and we are committed to service the needs of our clients. Thank you for your cooperation and patience
as we continue to work through these continuously -changing circumstances.
From: Fuemmeler, Amanda J CIV (US) [mailto:[e-mail]]
Sent: Friday, June 05, 2020 10:20 AM
To: Owen Carson <[e-mail]>
Cc: Moore, Andrew W <[e-mail]>
Subject: Silver Line: Follow up comments/needed information
Owen,
Thanks for the calls today and wanted to put my thoughts/questions down in one email to you (and for me as well) in
one spot and for Andrew's benefit related to the permitting....
-Please show all impacts on the L04 Wetland Impacts map to include call outs for temporary versus permanent impacts
for the boulder toe, versus boat ramp, versus coffer dams (in addition to wetland impacts). This map should correspond
to an updated impact table from the PCN.
-Please clarify why the boulder toe is needed/proposed and include a detail/plan sheet
- After reading through Byron's/USFWS letter they did not request that a survey for Elktoe be conducted however that
may change once he realizes the coffer dams are in the river. We can talk more about what this would mean
coordination and timing wise but it would have some implications on the project if a survey was required and mussels
were found. With that said, I think it would be beneficial to also address why a coffer dam / in river work is needed in
the first place. I have permitted boat ramps before and they were able to be constructed from high ground so not sure
what the difference is with this one. Again if a survey is required and mussels are located then those are some more
detailed discussions that will be needed.
-Byron's/USFWS letter recommends surveying for active eagle nesting in the vicinity. This would be a condition of our
permit so a heads up there to go ahead and start coordinating that to determine if an active nest is present and if that
would affect your construction timeframe.
- It also may be beneficial to gather everyone on a conference call (or on -site meeting) since there are several moving
parts to this one and get everyone on the same page so let me know you/engineer's availability and I can coordinate.
Amanda Jones
Regulatory Specialist
U.S. Army Corps of Engineers
Asheville Regulatory Field Office
1S1 Patton Avenue, Room 208
Asheville, NC 28801-5006
828-271-7980 ext. 4225

DocuSign Envelope ID: AE81E9CC-31ED-4354-8DD4-C4C2E87452EA
CERTIFICATE OF SURVEY AND ACCURACY
I, _DREW --VAN DUINKERKEN___, CERTIFY THAT THE GROUND
TOPOGRAPHIC SURVEY PORTION OF THIS PROJECT WAS COMPLETED
UNDER MY DIRECT SUPERVISION FROM AN ACTUAL SURVEY MADE
UNDER MY DIRECT SUPERVISION; THAT THIS SURVEY WAS PERFORMED
AT THE 95% CONFIDENCE LEVEL TO MEET THE FEDERAL GEOGRAPHIC
DATA COMMITTEE STANDARDS; THAT THIS SURVEY WAS PERFORMED
TO THE CLASS A HORIZONTAL AND CLASS C VERTICAL WHERE
APPLICABLE; THAT THE ORIGINAL DATA WAS OBTAIN BETWEEN THE
DATES OF 08/06/-19—!0128Z19 ; THAT THE CONTOURS SHOWN AS
BROKEN LINES MAY NOT MEET THE STATED STANDARD AND ALL
COORDINATES ARE BASED ON NAD 83 (NSRS 2011) AND ALL
ELEVATIONS ARE BASED ON NAVD 88; THAT THE GPS PORTION OF
THIS PROJECT WAS TO PERFORM A GRID TIE TO THE INC STATE
PLANE COORDINATE SYSTEM AND INFORMATION USED IS SHOWN &
NOTED HEREON; THAT THIS MAP MEETS THE SPECIFICATIONS FOR
TOPOGRAPHIC SURVEYS AS STATED IN TITLE 21, CHAPTER 56,
SECTION .1606; THAT THIS MAP WAS NOT PREPARED IN ACCORDANCE
WITH G.S. 47-30, AS AMENDED AND DOES NOT REPRESENT AN
OFFICIAL BOUNDARY SURVEY.
GPS METADATA
CLASS OF SURVEY: HORIZONTAL: A_ VERTICAL: C_
FIELD PROCEDURE: STATIC
DATES: 08/06/19
DATUM: NAD83(2011) NAVD 88
EPOCH: 2010
GEOID: 12B
AVERAGE COMBINED FACTOR:0.999804895
POSITIONAL ACCURACY: HORIZONTAL:0.05 VERTICAL:0.09
UNITS: USFT
CORS USED: NCHE, NCMA, NCSW, NCBR, HAYW
WITNESS MY ORIGINAL SIGNATURE, LICENSE NUMBER, AND
SEAL THIS _11 TH__ DAY OF __NOVEMBER2019 A.D.
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DocuSigned by:
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E: 935712.97'
ELEV: 1961.12'
CF: 0.99980478
CONTROL POINT #501
5/8" RBC "KEE"
GROUND COORDINATES
N: 702283.24'
E: 935123.62'
ELEV: 1957.28'
CF: 0.99980501
'CONTROL POINT 500 BEING LOCATED
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INV IN: 1956.97'
INV OUT: 1956.92'
N GRID NORTH
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THIS IS A TOPOGRAPHIC SURVEY INTENDED FOR
INFORMATIONAL & DESIGN PURPOSES ONLY. IT SHOULD
NOT BE USED FOR CONVEYANCE OR LEGAL PURPOSES.
KEE MAPPING & SURVEYING DOES NOT CERTIFY THE
SPATIAL ACCURACY FOR GIS DATA SHOWN HERE & MADE
PUBLICLY AVAILABLE BY THE NC ONEMAP GEOSPATIAL
DATA PORTAL, NORTH CAROLINA'S ONLINE FLOOD RISK
INFORMATION SYSTEM & THE CADASTRAL WEB MAP OF
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UNDERGROUND FIBER OPTIC CABLE RESTRICTIVE COVENANTS, CORRECT OWNERSHIP OR CURRENT OWNER LIST
ANY OTHER FACTS THAT AN ACCURATE AND
OHW ORDINARY HIGHWATER MARK CURRENT TITLE SEARCH MAY DISCLOSE. A NC TOWN OF WOODf
RAILROAD TRACKS LICENSED ATTORNEY SHOULD BE CONSULTED. SITE ADDRESS: 1054 & 1050 RIVERSIDE
RBC REBAR WITH ID CAP 6. BY GRAPHIC DETERMINATION, A PORTION OF PARCEL IDENTIFICATION #'S: 9730-52—
THE SUBJECT PROPERTY APPEARS TO LIE
N.A.D. NORTH AMERICAN DATUM 1983 WITHIN A SPECIAL FLOOD HAZARD AREA BEAVERDAM TOWNSHIP, BUNCOMBE CC
N.A.V.D. NORTH AMERICAN VERTICAL DATUM 1988 (SFHA) AS DETERMINED BY THE F.E.M.A. MAP#
SURVEY BY. JB, NMH,AC, NH, DD DRAWN B,
SPC STATE PLANE COORDINATES 3700973000J DATED 1/06/2010. SURVEY DATE: 11111179
CF COMBINED FACTOR 7. UTILITIES WERE LOCATED BASED ON VISIBLE ABOVE
PVC POLYVINYL CHLORIDE PIPE GROUND STRUCTURES, THEREFORE THE LOCATION OF REVISION: ADDED WETLAND & ORDINARY HIGHW,
VCP VITRIFIED CLAY PIPE UNDERGROUND UTILITIES ARE APPROXIMATE OR MAY
CPP CORRUGATED PLASTIC PIPE BE PRESENT AND NOT SHOWN HEREON. ELEVATION DATUM: NAVD 88 SHEET SIZE: 24'X36" SHEET #: I
CMP CORRUGATED METAL PIPE CALL1-800-632-4949 BEFORE DIGGING.
CONTOUR INTERVAL: 1 FOOT N
SMH SEWER MANHOLE 8. FIELD WORK WAS CONDUCTED BETWEEN THE P.
FFE FINISHED FLOOR ELEVATION DATES OF 08/06/19 & 10/28/19. 0' 50' 100, 150' A.
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PHASE
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DATE
June 10, 2020
DRAWING SCALE
1"=30'
NOTE: If this drawing is not 2436" it has been revised
from its original size and the scales noted on
drawings/details are no longer applicable.
DRAWING NAME
WETLAND IMPACTS
& FLOODPLAIN
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