20150053 Ver 1_Information Letter_20081022

kg KO & ASSOCIATES, P.C.
Consulting Engineers
5121 Kingdom Way, Suite 100
Raleigh, North Carolina 27607
[phone] • Fax [phone]
LETTER OF TRANSMITTAL
TO Bnan Wrenn PHONE
DENR Division of Water Quality FAX.
1621 Mail Service Center Email
Raleigh, NC 27699-1621
DATE October 24, 2008
R-2409C, US 64 Safety Improvements and Climbing Lanes from Lake
Toxaway to Indian Creek, Transylvania County
WE ARE SENDING YOU attached
COPIES
DATE
NO
DESCRIPTION
1
10/22/08
1
R-2409C Information Package
1
10/22/08
2
R-2409C Set of Preliminary Plans
THESE ARE TRANSMITTED For your use
Attached is information for Project R-2409C, including a set of preliminary design plans
for the project alternatives We will reference this information during our upcoming
conference call for this project In the meantime, please let me know if you have
questions or need additional information
cc Signed
/0- r- (4/0e-
p, PEE
R-2409C Mtg Transmittal 10 24 08 doc

KO & ASSOCIATES, P C
Consulting Engineers
October 22, 2008
To, Interagency Meeting Participants
From Brian Wiles, PE, Project Manager
Ko & Associates, RC Consulting Engineers
Subject, R-2409C, US 64, Safety Improvements and Climbing Lanes from Lake
Toxaway to Indian Creek, Transylvania County, North Carolina
This is to update you on the R-2409C planned improvements to US 64 in
Transylvania County This follows an 11 /29/07 interagency meeting for input on
the project alternatives (see attached meeting minutes), We will be contacting
you to schedule a conference call to discuss the latest project developments
The primary issues of concern have been avoiding a population of small-
whorled pogonia plants, minimizing impacts to Gorges State Park, and
minimizing impacts to perennial streams Since the November meeting, natural
system surveys and design adjustments have been completed Additional
stream limits were delineated No new federally protected species were
identified The initial alternatives included 12 foot travel lanes and 4 foot
shoulders The updated alternatives were shifted at Indian Creek, UT 1, UT 4, and
UT 5 Shoulders have increased to 6 feet and lane widths have increased to as
wide as 16 feet in curves to better contain trucks. A summary of updated
stream impacts is provided as follows
Alternatives
• Alternate 2 realigns portions of the roadway to provide flatter horizontal
curves and achieves a minimum design speed of 30 mph, It avoids the
small-whorled pogonia plant population
• Alternate 4 corrects more of the alignment deficiencies, straightens curves,
and increases the design speed to 40 mph It also avoids the small-whorled
pogonia population
Small-whorled pogonia
• A Small-whorled pogonia population (8 plants) was identified in June 2006 It
is located on the north side of US 64 at the eastern end of the project,
approximately 50 feet from the existing road
• Alternatives 2 and 4 avoid the population by following the existing alignment
in the area of the plants
5121 Kingdom Way, Suite 100 • Raleigh, NC 27607 • Phone [phone] - Fax [phone]
October 22, 2008
R-2409C, US 64, Transylvania County
Page 2
Gorges State Park
• Gorges State Park is part of the NC State Parks System and is located along
the south side of US 64 at the western end of the project
• All alternatives would require temporary construction easements or
permanent use of park land
Water Resources
The following jurisdictional stream systems are located within the project study
area: UT's 1-3 and 8-9 to Toxaway River, UT's 4-7 to Indian Creek, and Indian
Creek (see Figure 3 for locations)
• UT1 is a large perennial stream with a sand, gravel, and cobble substrate
(R3UB1 /2) approximately 12 feet wide with banks 4 to 6 feet high - no
change
• UT2 is a perennial stream with a sand, gravel, and cobble substrate (R4UB1 /2)
approximately 4 feet wide with banks 2 feet high.
• UT3 enters the project study area as a perennial stream approximately 4 feet
wide with banks 2 feet high, it goes underground upstream of the culvert
Downstream of the culvert, it emerges as an intermittent stream
approximately 3 feet wide with banks 3 feet high, and then becomes
perennial before leaving the project area, It has a sand, gravel, and cobble
substrate (R4UB1 /2) throughout
• LIM is a small perennial stream with a bedrock substrate (R3UB1 /2)
approximately 4 feet wide with banks 6 feet high - no change
• UT5 is a perennial stream with a sand, gravel, and cobble substrate (R4UB1 /2)
approximately 3 feet wide with banks 3 feet high
• UT6 is a perennial stream with a sand, gravel, and cobble substrate (R4UB1 /2)
approximately 3 feet wide with banks 2 feet high
• North of US 64, UT7 is an intermittent stream, after flowing under the road, UT7
emerges as a perennial stream UT7 has a sand, gravel, cobble, and boulder
substrate (R4UB1 /2) and is approximately 3 feet wide with banks 3 feet high
throughout
• UT8 is an intermittent stream with a sand, gravel, and cobble substrate
(R4UB1 /2) approximately 2-3 feet wide with banks ranging to 5 feet high
• UT9 is an intermittent stream with a sand, gravel, and cobble substrate
(R4UB1 /2) approximately 2-3 feet wide with banks approximately 2 feet high
• Indian Creek is a large perennial stream with a bedrock substrate (R2RB1 /2)
approximately 20 feet wide with banks up to 6 feet.
October 22, 2008
R-2409C, US 64, Transylvania County
Page 3
Table l Jurisdictional Areas within Proposed Alternates' Cut-Fill Boundaries
Site Alternate 2 Alternate 4
Linear Area Linear Area
Distance
(acres) Distance
(acres)
Of ft
UT 1 12 0 003 20 0 006
UT 2 - - 37 0 003
UT 3 16 0 001 309 0 021
UT 4 281 0.026 105 0 010
UT 5 75 0 005 180 012
UT 6 43 0 003 9 0 001
UT 7 180 0 012 216 0.015
UT 8 - - 28 0 003
UT 9
Indian
Creek
TOTAL 607 0 051 934 0.071
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R-2409C, US 64, Safety Improvements and Climbing Lanes from Lake
Toxaway to Indian Creek, Transylvania County, North Carolina
Interagency Meeting Participants
Troy Wilson US Fish and Wildlife Service Tro _Wilson@fws ov
Carolyn Wells US Fish and Wildlife Service carol n_wells@fws ov
Marella Buncick US Fish and Wildlife Service marella_buncick@fws ov
David Baker US Arm Corps of Engineers david k baker@usace arm mil
Donnie Brew Federal Highway Administration Donnie Brew@fhwa dot ov
Marla Chambers NC Wildlife Resources Commission marla chambers@ctc net
Marshall Ellis DENR Division of Parks &
Recreation marshall ellis@ncmail net
Rob Evans DENR Division of Parks &
Recreation rob evans@ncmad net
Steve Pagano Gorges State Park sieve a ano@ncmail net
Brian Wrenn DENR Division of Water Quality Brian wrenn@ncmail riet
Mike Parker DENR Division of Water Quality mike arker@ncmail net
Joel Setzer NCDOT Division 14 Office setzer@ncdot ov
Jamie Wilson NCDOT Division 14 Office wilson@ncdot ov
Steve Williams NCDOT Division 14 Office swdliams@ncdot ov
Mark Davis NCDOT Division 14 Office markdavis@ncdot ov
Owen Anderson NCDOT Division 14 Office oanderson@ncdot ov
Carla Da nano NCDOT PD&EA Branch cda nino@ncdot ov
Jeff Hemphill NCDOT PD&EA Branch hem hill@ncdot ov
Steve Mitchell NCDOT PD&EA Branch srmitchell@ncdot ov
Dennis Herman NCDOT PD&EA Branch dwherman@ncdot ov
Kris J Dramb NCDOT PD&EA Branch k dramb @ncdot ov
Kate Montieth The Catena Group kmontieth@thecatena rou corn
Brian Wiles Ko & Associates bwdes@koassociates corn
Clay Oliver Ko & Associates coliver@koassociates corn
Mark Ree Ko & Associates mree @koassoaates com

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KO & ASSOCIATES, P C
Consulting Engineers
December 7, 2007
To Paul White, P E, Design Construction Engineer
NCDOT Division 14 Office
From Brian Wiles, PE, Project Manager
Ko & Associates, P C Consulting Engineers
Subject R-2409C, US 64, Safety Improvements and Climbing Lanes from Lake
Toxaway to Indian Creek, Transylvania County, North Carolina
On November 29, 2007, an interagency meeting was held to discuss revisions to
the project since the 10/10/06 interagency meeting These revisions were made
to avoid a small-whorled pogonia plant population while minimizing impacts to
streams and Gorges State Park land The following people attended the
meeting
Troy Wilson US Fish and Wildlife Service
Carolyn Wells US Fish and Wildlife Service
Dave Baker US Army Corps of Engineers
Donnie Brew Federal Highway Administration
Marshall Ellis DENR Division of Parks and Recreation
Brian Wrenn DENR Division of Water Quality
Mike Parker DENR Division of Water Quality
Joel Setzer NCDOT Division 14 Office
Jamie Wilson NCDOT Division 14 Office
Mark Davis NCDOT Division 14 Office
Paul White NCDOT Division 14 Office
Owen Anderson NCDOT Division 14 Office
Jeff Hemphill NCDOT PD&EA Branch
Steve Mitchell NCDOT PD&EA Branch
Dennis Herman NCDOT PD&EA Branch
Shay Garriock The Catena Group
Brian Wiles Ko & Associates
Mark Reep Ko & Associates
Two alternatives are being studied in detail (see meeting handout for additional
project information)
• Alternate 2 realigns portions of the roadway to provide flatter horizontal
curves and achieves a minimum design speed of 30 mph It avoids the
small-whorled pogonia plant population
5121 Kingdom Way Suite 100 • Raleigh, NC 27607 • Phone [phone] • Fax [phone]
December 7, 2007
R-2409C, US 64, Transylvania County
Page 2
Alternate 4 corrects more of the alignment deficiencies, straightens curves,
and increases the design speed to 40 mph It also avoids the small-whorled
pogonia population
The following is a summary of major items discussed during the meeting
Small-whorled pogonia
Alternates 2 and 4 will not directly disturb the embankment where the plant
population is located The side slope is currently eroding US Fish and Wildlife
(USFWS) representatives request this roadway slope be stabilized and asked to
review the revegetation plans for the project when available Ideas may
include planting native vegetation and/or installing mesh fabric with anchor
units To preserve the tree canopy, tree clearing can be limited to the slope
stake line near the plant population These items will be considered as
environmental commitments for the project
It was suggested that NCDOT send a letter to USFWS requesting concurrence
that the project will have no effect on the small-whorled pogonia Ko &
Associates agreed to email a copy of the alternate design concepts near the
plant population for Troy Wilson and Carolyn Wells to review
Stream Crossings
Army Corps of Engineers (COE) and NC Division of Water Quality (DWQ)
representatives asked that the designs be refined to minimize impacts to the
following
Perennial streams
• The parallel unnamed tributaries 4 and 5
• The unnamed tributary 1 at NC 281
Based on a jurisdictional field review of the streams, some of the perennial and
intermittent stream limits will need to be revised Also, the revised Alternate 2
and 4 footprints appear to extend beyond the original stream delineation limits
in some areas NCDOT, Ko & Associates, and The Catena Group will determine
the extent of additional studies needed to update the stream delineations and
the Natural Resources Technical Report
Gorges State Park
Gorges State Park officials are most concerned about the following issues
0 Minimization of water quality impacts'through stringent erosion control
December 7, 2007
R-2409C, US 64, Transylvania County
Page 3
• Use of native plant species (no invasive species) for stabilizing the
construction slopes after construction in the area of the park boundaries
• Request for new park boundaries to loin the roadway right of way with no
private parcels in between
Based on the interagency meeting input, the following action items are
proposed
• Email a copy of the alternate design concepts near the plant population
for USFWS to review (Ko & Associates)
• Continue refining Alternates 2 and 4 to minimize impacts and update
stream limits and other natural resource issues (Ko & Associates and The
Catena Group with work with NCDOT to define the additional work effort
for surveys, roadway designs, and natural systems studies )
• Provide refined designs and impact calculations to the meeting
participants
• Schedule a future interagency conference call to review the alternatives
• Additional public involvement opportunities will be considered
cc Meeting Participants

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