20030805 Ver 1_Complete File_20030702

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Michael F. Easley
Governor
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Alan Klimek, PE
Division of Water Quality
July 2, 2003
Mr. Tim Trautman, PE
Mecklenburg County Stormwater Engineering
700 North Tryon Street
Charlotte, NC 28202
Dear Mr. Trautman:
Subject: Stream Restoration/Enhancement
Little Sugar Creek
Mecklenburg County, NC
DWQ# 030805
This Office is in receipt of the plans for the stream restoration and enhancement project of approximately 5200
feet of Little Sugar Creek in the Catawba River Basin submitted to this Office on June 30, 2003. DWQ Staff
reviewed the plans and determined that stream restoration and/or enhancement would be achieved.
The stream impacts associated with the project may proceed without written approval from the Division. Please
be advised that seven copies of a complete, formal application and a $475.00 fee is required for projects
intended for compensatory mitigation credit (see General Certification No. 3399, issued March 2003). Any
request for mitigation credit shall be addressed under separate cover.
If you have any questions regarding this matter, please contact Mr. Todd St. John at [phone].
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cc: Mr. Todd St. John, Wetland-A.Ubit
Andrew Bick, Buck Engineering, 1347 Harding Place, Suite 100, Charlotte, NC 28204
Mooresville Regional Office
File
North Carolina Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd.. Raleiqh, NC 27604-2260 (Location)
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Office Use Only: rr?? Form Version April 2001
USACE Action ID No. DWQ No. 03 0a f 1 r,
If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A" rather than
leaving the space blank.
1. Processing *7WS/401 MoUP
1. Check all of the approval(s) requested for this project: JUN a? '1l_OU3
® Section 404 Permit A?
? Section 10 Permit ,TSQUAMYSECTION
® 401 Water Quality Certification
? Riparian or Watershed Buffer Rules
2. Nationwide, Regional or General Permit Number(s) Requested: NWP 27
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ?
4. If payment into the North Carolina Wetlands Restoration Program (NCWRP) is proposed for
mitigation of impacts (see section VIII - Mitigation), check here: ?
II. Applicant Information
1. Owner/Applicant Information
Name: Tim Trautman. PE
Mailing Address: Mecklenburg County Storm Water Engineering
700 N. Tryon Street.
Charlotte NC 28202
Telephone Number: 704-336-7357 Fax Number: 704-336-3846
E-mail Address: trauttjkco.mecklenburg.nc.us
2. Agent Information (A signed and dated copy of the Agent Authorization letter must be
attached if the Agent has signatory authority for the owner/applicant.)
Name: Andrew Bick, PE
Company Affiliation: Buck Engineering
Mailing Address: 1347 Harding Place, Suite 100
Charlotte, NC 28204
Telephone Number: 704-334-4454 Fax Number: 704-334-4492
E-mail Address: abick@.bucken.gineering.com
Page 3 of 12
f.
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires ipformation to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may 'accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Little Sugar Creek Environmental Restoration
2. T.I.P. Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN): _N/A
4. Location
County: Mecklenburg Nearest Town: Charlotte
Subdivision name (include phase/lot number): Myers Park Manor
Directions to site (include road numbers, landmarks, etc.): From I-277, take the Kenilworth
Ave. exit. Travel south for approximately 1 mile. Bear left on Park Rd. Travel another mile
and turn left on Hillside Ave. which crosses Little Sugar Creek at the mid-project point
5. Site coordinates, if available (UTM or Lat/Long): UTM 17 513999E 3892667N_
(Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the
coordinates for each crossing of a distinct waterbody.)
6. Describe the existing land use or condition of the site at the time of this application:
Stormwater easement: single-family residential
7. Property size (acres): 20+/-
8. Nearest body of water (stream/river/sound/ocean/lake): Little Sugar Creek
9. River Basin: Catawba
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.)
Page 4 of 12
10. Describe the purpose of the proposed work: To improve water quality and aquatic habitat
by reducing sedimentation, improve stream stability; and improve riparian and floodplain
functionality. This is not a mitigation project.
11. List the type of equipment to be used to construct the project: Track excavator; bulldozer;
loader; dump truck; hand labor.
12. Describe the land use in the vicinity of this project: urban residential, commercial, school
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules.
N/A
V. Future Project Plans
Are any additional permit requests anticipated for this project in the future? If so, describe the
anticipated work, and provide justification for the exclusion of this work from the current
application: N/A
VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. The applicant must also
provide justification for these impacts in Section VII below. All proposed impacts, permanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
plan. All wetlands and waters, and all streams (intermittent and perennial) must be shown on a
delineation map, whether or not impacts are proposed to these systems. Wetland and stream
evaluation and delineation forms should be included as appropriate. Photographs may be
included at the applicant's discretion. If this proposed impact is strictly for wetland or stream
mitigation, list and describe the impact in Section VIII below. If additional space is needed for
listing or description, please attach a separate sheet.
Page 5 of 12
1. Wetland Impacts
Wetland Impact
Site Number
indicate on ma
Type of Impact* Area of
Impact
acres Located within
100-year Floodplain**
( es/no) Distance to
Nearest Stream
feet
Type of Wetland***

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, fill,
excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding.
** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps
(FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or
online at http://www.fema.gov.
*** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond,
Carolina Bay, bog, etc.)
List the total acreage (estimated) of existing wetlands on the property: N/A
Total area of wetland impact proposed: N/A
2. Stream Impacts, including all intermittent and perennial streams
Stream Impact
Site Number
indicate on ma
Type of Impact* Length of
Impact
linear feet
Stream Name** Average Width
of Stream
Before Impact Perennial or
Intermittent?
leasespecify)
Reaches 1-4 Restoration 5200 Little Sugar Creek 70 ft Perennial

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap,
dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain),
stabilization activities (cement wall, rip-rap, crib wall, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is
proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included.
** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest
downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at
www.us2s.gov. Several internet sites also allow direct download and printing of USGS maps (e.g., wry wjppozone.com,
www.mapquest.com, etc.).
Cumulative impacts (linear distance in feet) to all streams on site: 5200
Page 6 of 12
3. Open Water Impacts, including Lakes, Ponds, Estuaries, Sounds, Atlantic Ocean and any
other Water of the U.S.
Open Water Impact
Site Number
(indicate on ma
Type of Impact* Area of
Impact
(acres) Name of Waterbody

(if applicable) Type of Waterbody
(lake, pond, estuary, sound,
bay, ocean, etc.)

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.
4. Pond Creation
VII.
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ® uplands ? stream ? wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.): partial filling of old stream channel
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): storm water treatment at 3 existing outfalls
Size of watershed draining to pond: 5, 6 and 20 AC Expected pond surface area: < 3000sf
Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts.
The nroiect constitutes a positive impact since it will enhance stream stabilitv by nrotectine
streambanks, providing grade control, improving bed features, and reducing sediment
concentrations in the stream. Construction practices will follow guidelines from the NC Erosion
and Sediment Control Planning and Design Manual.
Page 7 of 12
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on March 9, 2000, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCWRP concurrence shall be placed on hold as
incomplete. An applicant may also choose to review the current guidelines for stream restoration
in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at
http://h2o.enr.state.nc.us/ncwetlands/strm.gide.html.
1. Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
Page 8 of 12
2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP) with the NCWRP's written agreement. Check the box indicating that
you would like to pay into the NCWRP. Please note that payment into the NCWRP must be
reviewed and approved before it can be used to satisfy mitigation requirements. Applicants
will be notified early in the review process by the 401/Wetlands Unit if payment into the
NCWRP is available as an option. For additional information regarding the application
process for the NCWRP, check the NCWRP website at hM:!/h2o.enr.state.nc.usi /index.htm. If
use of the NCWRP is proposed, please check the appropriate box on page three and provide
the following information:
Amount of stream mitigation requested (linear feet):
Amount of buffer mitigation requested (square feet):
Amount of Riparian wetland mitigation requested (acres):
Amount of Non-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
IX. Environmental Documentation (DWQ Only)
Does the project involve an expenditure of public funds or the use of public (federal/state/local)
land?
Yes ® No ?
If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ? No
If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a
copy of the NEPA or SEPA final approval letter.
Yes ? No ?
X. Proposed Impacts on Riparian and Watershed Buffers (DWQ Only)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
Water Supply Buffer Requirements), or other (please identify )?
Yes ? No ® If you answered "yes", provide the following information:
Page 9 of 12
Identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer
mitigation is required calculate the required amount of mitigation by applying the buffer
multipliers.
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 3
2 1.5
Total
* Zone 1 extends out 30 feet perpendicular from near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation
of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or
Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as
identified within 15A NCAC 2B .0242 or.0260.
XI. Stormwater (DWQ Only)
Describe impervious acreage (both existing and proposed) versus total acreage on the site.
Discuss stormwater controls proposed in order to protect surface waters and wetlands
downstream from the property.
The upland 5 square miles drains mixed residential and industrial land use areas. with an averaae
percent impervious of about 40%. The middle 2 to 3 square miles drains uptown Charlotte with
an average percent impervious of 80 to 90%. The downstream 6 to 7 square miles is mixed
residential and commercial land uses, with an average percent impervious of about 40%. A
composite percent impervious for the whole drainage area is about 50%. This percentage is not
expected to change after the project is complete.
XII. Sewage Disposal (DWQ Only)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
XIII. Violations (DWQ Only)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes ? No N
Page 10 of 12
J UN-ZD-&bb3 1.3 a Zd I"ItUKLtNbUKL3 WUN I Y '(04 5 i6 3846 P. 02

Is this an after-the-fact permit application?
yes ? No
XIV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
N/A
US Army Corps Of Engineers Field Offices and County Coverage
Asheville Regulatory Field Office Alexander Cherokee Iredell M.itcholl
US Army Corps of Engineers Avery Clay Jackson Polk
151 Patton Avenue Buncombe Cleveland Lincoln Rowan
Room 208 Burke Gaston Macon Rutherford
Asheville, NC 28801-5006 Cabarrus Graham Madison Stanley
Telephone: [phone] Caldwell Haywood McDowell Swain
Pax. [phone] Catawba Henderson Mecklenburg Transylvania
Raleigh Regulatory Field Office Alamance Durham Johhston Rockingham
US Army Corps Of Engineers Alleghany Edgecombe Leer Stokes
6508 Falls of the Neuse Road Ashe Franklin Nash Surry
Suite 120 Caswell Forsyth Northampton Vance
Raleigh, NC 27615 Chatham Granville Orange Wake
Telephone, [phone] Davidson Guilford Pervon Warren
Fax- [phone] Davie Halifax Randolph Wilkes
Washington Regulatory Field Office Beaufort Currituck Jones
US Army Corps Of Engineers Bertie Dare Lenoir
Post Office Box 1000 Camden Gates Martin
Washington, NC 27889-1000 Carteret* Green Pamlico
Telephone: [phone] Chowan Hertford Pasquotank
Fax: [phone] Craven -Hyde Perquimans
Wilmington Regulatory Field Office Anson Duplin Onsslow
US Army Corps Of Engineers Bladen Harnett Pander
Page 11 of 12
Pitt
Tyrrell
Washington
Wayne
Union
Watauga
Yancey
Wilson
Yadkin
wCroatan National Forest Only
TOTAL P.02
(Agent's signature is valid only it an autnonzation letter rrom the applicant is pz'oviaea.)
BUCK, ?T ?` Responsible E n g ineering an41
F ?T 1 tl V (? T t ?1 F R T N G C Z e n C f-- (' 13e I I e Y tI i' 7 Y U YJ !IZ t lI
www. buckengineer'ing. coin
June 25, 2003

Mr. Todd St. John JUN 3 q 2003
NC DENR
Division of Water Quality, Wetlands Unit OTR UALP&CTOt
1650 Mail Service Center v,`Vtr
Raleigh, North Carolina 27699-1650
Subject: Pre-Construction Notification/401 Certification Package
Little Sugar Creek Restoration
Charlotte, North Carolina
Dear Mr. St. John:
Please find enclosed three copies of our restoration plan set for the subject project. We have also
included the following supporting data:
• PCN form;
• Cross section and profile surveys of the existing project reach and one reference reach;
• A summary table listing geomorphic parameters for the existing and design channels and two
reference reaches;
• A sediment transport discussion.
The project integrates storm water BMPs and a greenway trail with the stream and floodplain
restoration work. The plans reflect all design elements. As you know, this project is not being used for
compensatory mitigation.
If you have any questions, please call me at [phone], extension 103.
Sincerely,
a't ?d
Andrew Bick, P.E.
Project Manager
Enclosure: 401 Certification Package
Cc: Mr. Tim Trautman
Mecklenburg County Storm Water Engineering
8000 Regency Parkway, S iii to 200 1347 Hard i n g PI ace, S u i to 1 00
Cary, N(-)rth C aro I i n a 275 I 1 C h a rIotte, N o r t h Carol in a 28204
PPioTI e.: 91 9 _463.5488 Phone: 7 0 4 . 3 3 4 . 4 4 5 4
Fax: [phone] Fax : [phone]
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LITTLE SUGAR CREEK
ENVIRONMENTAL RESTORATION
401 CERTIFICATION PACKAGE

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June 25, 2003
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Site Map
Little Sugar Creek Restoration
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Sediment Transport Summary
Sediment Sampling
Buck collected several sediment samples along the project reach using pavement-
subpavement and bar sampling techniques. Most riffles contain a large percentage of
embedded riprap sized particles that appear to have sloughed into the channel from
adjacent banks. The embedded nature and algal growth on these larger particles indicate
that they are not likely mobile during bankfull events. For our pavement-subpavement
samples, we selected locations that appeared to be most representative of the mobile
portion of the riffles.
Our bar samples were collected at two lateral bars and at two mid-channel bars. Alluvial
point bars traditionally seen in meandering systems are not present in Little Sugar Creek.
Given the absence of point bars, the mid-channel and lateral bar materials are likely the
best indication of the movable particles sizes in the reach. We conducted a wetted
perimeter zigzag pebble count at a riffle near the bar samples to characterize the nearby
pavement materials.
Analysis
We checked sediment transport competency of the design channel reaches using the
methodology developed by Rosgen and Jessup (Jessup, personal communication, 2002).
This methodology is based on dimensionless critical shear stress that is determined from
ratios of pavement to subpavement (or bar) particle sizes. From the dimensionless
critical shear stress estimates, critical depth and water surface slope can be estimated and
used to validate a design. We also used a boundary shear stress calculation and a
modified version of Shield's curve to estimate the largest particle size that can be moved
in the design channel.
The attached spreadsheets summarize sediment sample data and analysis results. Graphs
summarizing sieve analysis and pebble count data for each sample used in the analysis
are also included. In many cases, our sediment samples do not fit into the pavement-
subpavement ratio ranges for which the governing equations apply. This is likely due to
the extensive disturbance the creek has undergone over the last several decades, in the
form of dredging and riprap bank reinforcement. The pavement-subpavement sample at
station 36+00 and the pebble count/bar sample at station 19+50 both fit into the ranges.
The other two samples yield results that are close enough to the defined ranges as to be
useful for comparison.
Our analyses generally support the design riffle cross sections. The range of estimated
critical bankfull depth in Reach 3 is 2.1 to 7.6 feet; the design bankfull depth is 4.5 feet.
Referring to the modified Shield's curve, the largest movable particle size for the design
channel is 60 to 80 mm, which corresponds well to the range of maximum particle sizes
1347
har Harting Place
suite 100
B C
Charlotte, North Carolina 28204
Phone: [phone]
k':: 3? f.> UCKFax: 704.334.4492
a1G- -buckengineering.wm
Pagel of 2
in the subpavement and bar samples. For Reach 4, the estimated critical bankfull depth
ranges from 1.4 to 4.9 feet; the design bankfull depth is 4.3 feet.
The intent of a sediment transport analysis is to determine if the design cross section and
slope will cause aggradation or degradation over time. Our analyses indicate that
aggradation could be a slight concern on Reach 3 where the design water surface slope is
only 0.0014. However, the supply of coarse sediment in the size range of concern
(greater than about 80 mm) is very limited in a developed, urban watershed such as Little
Sugar Creek. The existing channel appears to be moving its sediment load; the mid-
channel and lateral bars present in the existing channel are located directly adjacent to
large bank failures and highly over-wide sections. The design Reach 3 addresses these
over-wide sections and potential transport problems. Aggradation in Reach 4 does not
appear to be a concern.
The analyses did not indicate a degradation concern, such as boundary shear stresses well
in excess of those required to move the largest subpavement or bar particle sizes.
Proposed in-stream boulder structures provide grade control as additional safety measures
against degradation.
BUCK 1347 Harding Place
Suite 100
Chartone. North Carolina 28204
Phone: [phone]
k:.:\ Ci S! k:: k2. k. ti C:y Pax: 704.334.4402
.?i.._ www.buckengireerinBoom
Page 2 of 2
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