19910258 All Versions_Complete File_19941018

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STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
JAMES B. HUNT, JR. DIVISION OF HIGHWAYS
GovEmtaoR PO. BOX 25201, RALEIGH, N.C. 27611-5201
September 30, 1994
District Engineer
U.S. Army Corps of Engineers
Post Office Box 1890
Wilmington, North Carolina, 28402-1890
ATTENTION: G. Wayne Wright
Chief, Regulatory Branch

R. SAMUEL HUNT III
SECRETARY
RECEIVED
OCT 18 1994
ENVIRONMENTAL SCIENCES
Dear Sir:
SUBJECT: Guilford County -
Belt) from West of
Interchange at US
State Project No.
US 311 Bypass (High Point East
High Point Reservoir to
29/70; T.I.P. Nos. R-0609D,E,E,
8.1570601
Attached is the revised mitigation plan for the
referenced project. A total of 5.94 acres of compensatory
mitigation within the Oak Hollow Lake watershed will be
necessary to mitigate the project impacts. This is to be
Crimpl L- hed through construction of GL. -_ Lalld 1lar woods
locations agreed upon by NCDOT, the Corps of Engineers,
and N.C. Division of Environmental. Management.
For your records, ple:?se note that :litigation Sites 1, 2
and 5 were dropped during the course of further site studies.
11';ao new Sites were :deed and are labeled Sues 7 and ' .
V
These sites were visited by DOA and DEPT: personn4i. Also note
that locations for all sites adjacent to the High Point
Bypass (currently under construction) are given as station
numbers. Previously, these sites were described according to
adjacent local roads. Closure or re-alignment of these roads
necessitated new location descriptions; however, the number
assigned to each site has remained ccnsistent throughout the
planning -rocess. Thus, the five sites are labelled as Site
3, 4, 5, 7 and 8. Together, these properties will include
10.7 acres of w_tlannd restoration, creation, and
preservation.
PHONE [phone] FAX [phone]

Site descriptions depicting the five sites are included.
All of these sites are under NCDOT ownership. Hardwood
seedlings are to be planted on these sites by March 26, 1995,
with hydrological and vegetative monitoring to follow during
the March 26 to November 6 growing season. As required,
monitoring reports will be submitted for your review.
if you require additional information, please contact
Cyndi Bell at [phone].
Sincerely,
B.- O' •uini P . E .
Assis a.- tanager
P1alni:ig & Environiilental Branch
cc: Mr. Join Dorney, DEM, DEHAIR
Mr. David Dell, USFWS
I-Ir . David Cox, NCWRC
Mr. John Thomas. DIA
Mr. Mike Patten, NCDCT, Division 7
Mr. Bill Moore, P.E., Geotechnical
Mr. Don Lee, Roadside Environmental

41

MITIGATION SITE 3
LOCATION: Station 106+50 (Formerly at corner of Shadybrook
Road and.Rolling Road)
OWNER: NCDOT
MITIGATION ACREAGE: 0.70
FORMER CONDITION: A small tributary flowing into this site
is culverted beneath Rolling Road. The tributary cut
through the southwest corner of the property and flowed
into a ditch adjacent to shadybreok Road. The site was
historica ly a bottomiand hardwood stand, and had been
cleated. The City of High, Point mowed the property
regularly, and an adnacent property owner had planted a
small vegetable garden.
MITIGATION TYPE: In-kind, Restoration
P:mvi -v ACTIUN: Piail-.L OL .,G1.:OAilaild ila: c.aGGvegetation
by March 1995. The tributary has been diverted iitG a
sinuous coarse that flows throughout the property. The
stream hen flows into _ Culver be11eat i she High ?Gint
Bv?ass.
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MITIGATION SITE 4
LOCATION: Station 109+50 to 120+50. The site is bordered by
Oak Hollow Lake to the north and the High Point Bypass
corridor to the south.
OWNER: NCDOT
MITIGATION ACREAGE: 3.50
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FORMER CONDITION: The property was forested uplands with
mixed pine/hardwood vegetation. The site was cleared
and graded during construction, with much of the W
material removed used for construction of the High Point
Bypass. The site was then used for storage of hydric
topsoils during construction.
MITIGATION TYPE: In-kind, Creation
PLAIT OF ACTION: As this site is located along a corridor
between the High Point Bypass and Oak Hollow Lake, it
%1111 provide a useful buffer to ?ilte?- some of the
runoff from the new highway. A stream which has been
cuivel-te beneath the highway ha., a weir to re-dir_ct
the first inch of runoff to flow throughout Site 4,
rather than directly into Oak Hollow Lake. A two-foot
sigh and twenty-foot wide bufer runs along the lakeside
edge of the property. Hydrologic studies indicate that
the site can filter up to 290 acres. The Site wi_1I also
be vegetated with ";bottomlanCi hardwood seedlings by 995
Hydric: topsoil was left on the property to help support
growth o_ the seedlings. Th"s topsoil was cbtai _Zed froin
the wetlands which were filled for highway construction.

MITIGATION SITE b
LOCATION: Sandy Ridge Road at Deep River, approximately 200
feet east of intersection with Squire Davis Road. The
property is bordered to the west by a forested buffer to
the river, to the north by forest, to the east by
private property (maintained lawn and farm field), and
to the south by Sandy Ridge Road.
OWNER: NCDOT
FORMER CONDITION\ APPROXIMATE MITIGATION ACREAGE: The
property purchased by NCDOT for protection as wetlands
includes 4.90 acres. During earlier site studies, much
of the property had been degraded due to over-grazing.
Subsequent to the removal of grazing impacts, much of
the site has recovered significantly. On August 26,
1994, the interior of the site "was flagged to cordon off
the area from mitigation cor_,truction. Areas requiring
grading were also flagged. The area to be graded will
be surveyed during constructi311 (fall 1995), a:-id is
estimated to include 1.5 to .0 acres. This calculation
will be forwarded when available. A minimuri 50 foot
forested buffer will be left along the river. Although
less than half of' tie property will actually involve
wetlands restoration; through site acquisition NCDOT has
prevented further disturbance to wetlands on the
property and can ensure long-term protection of the
entire site.
PROPOSED MITIGATION TYPE: In-kind Restoration and
Preservation
PLAN OF ACTION: Site grading is to be performed in the fall
o. 1995, with p lalit_ng of bottomland hardwcod seedlings
to be accomplished before March 2.,6, 1995.
of
MITIGATION SITES 7 AND 8
LOCATION: Station 69+00 along mainline (Site 7) Station
23±00 along Ramp C (Site 8)
OWNER: NCDOT
MITIGATION ACREAGE: 1.2 Acres (Site 7)
0.4 Acre (Site 8)
FORMER CONDITION: Forested uplands. The sites were probably
several feet lower historically, possibly even to
wetland elevation, and were silted in from the stream
flowing through the area.
MITIGATION TYPE: In-kind, Restoration
PLAN OF ACTION: The sites have been graded and hydric
topsoil placed. Hardwood seedlings will be planted on
the sites by march 26, 1995. Both sites will help to
filter runoff from the new highway.
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GUIDELINES,FOR WETLAND MITIGATION AND MONITORING PROGRAM
BOTTOMLAND HARDWOODS
MITIGATION SITES 3, 4, 6, 7, AND 8
I. Monitoring Timeframe - Mitigation site shall be
inspected at the following times:
A. Prior to planting.
B. At completion of planting.
C. At the end of the next three growing seasons.
Growing Season is March;26 through November 6
II. Data to be obtained at specific inspection times:
A. Prior to planting:
1. Check for proper elevation and grade, get the
permitting agencies' approval on the elevation.
If used, topsoil fill material will be clean
and free of pollutants, except in trace
quantities. Metal products, organic materials,
or unsightly debris will not be used.
2. Check for proper plant species and for
acceptable plant quality:
Fraxinus pennsylvanica - Greer. Ash
15-13", jeedling, Bare-root
Betula nicrra - River Birch
12-15", Seedling, Bare-root
Cuercus lyrata - Overcup Cak
12-15", Seedling, Bare-root
Ouercus michauxii - Swamp Chestnut*'Oak
12-15", Seedling, Bare-root
Cuexcus phellos - Willow Oak
15-18", Seedling, Bare-root
Ouercus nigra - Water Oak
15-18", Seedling, Bare-root
Notes: Plant species are contingent upon
availability.
No more than 200 of any one species
shall be planted in the initial planting, with
a minimum of six different species utilized.
3. Check for proper planting methods.
4. Check for proper plant spacing (61-101, Avg G'
on center).
B. At completion of planting check for conformity with
plans as well as quality of planting. Provide copy
of as-built mitigation drawings and report to the
U.S. Army Corps of Engineers and North Carolina
Division of Environmental Management.
C. After first, second, and third full growing seasons
following completion of planting:
1. Determine stem count based upon one sample plot
(0.05 acre) per acre. Annual monitoring will
be conducted during t..e period from August 1 to
September 30 of each year until the vegetative
success criteria is met.
2. Annual monitoring reports, to include
photographs, sample plot data, well data (if
applicable), and problems/resolutions, will be
submitted to the U.S. Army Corps of Engineers
and North Carolina Division of Environmental
Management.
TIT. Monitoring for Hydrology:
The success criteria for hydrology will be saturation
within 12 inches of the surface, po nded or flooded for
at least 26 consecutive days (12.50 of the growing
season for the first year under reasonably average
climatic conditions. NCDOT will document f ompliance
through the use of monitoring wells or visual
observation within the mitigation sites. If the
success criteria is not met during the first year, well
monitoring will continue until the success criteria can
be documented.

IV. Evaluation and Recourse Actions:
A. A minimum of 320 stems per acre living for at least
three consecutive years. If after three years the
number of trees per acre is below 320, NCDOT will
consult with the permitting agencies to determine
an appropriate recourse option.
B. Annual data evaluation, at the end of three growing
seasons:
1. Below acceptable survival rate (recourse
options):
a. Replant (supplemental or complete)
b. Minor regrading
c. Reevaluate feasibility
2. Acceptable survival rate - no action
C. if any previously unknown historic or
archaeological remains are discovered while
accomplishing the authorized work, the permitting
agencies will be notified so that the required
State/Federal coordination can be initiated.