20170441 Ver 1_401 Application_20170413

Transmittal
To: NC Division of Water Resources
401 & Buffer Permitting Unit
512 North Salisbury Street
Suite 942-E
Raleigh, NC 27604
Attn: Karen Higgins
We Transmit:
❑ as per your request
❑ under separate cover
❑ by mail
❑ by messenger
❑ by pick up
® by overnight carrier
❑ by ground carrier
the following:
❑ prints
❑ copies
❑ reports
❑ studies
❑ reproducible
❑ product literature
❑ computations
D e w b e r r
9300 Harris Corners Parkway, Suite 220
Charlotte, NC 28269
Phone [phone] Fax [phone]
Date: 3/30/2016 Project No.: 50070656
Project: Smith Circle Road Connection
Re: PCN for NWP 14, WQC 3886
for:
❑ your approval
❑ your review and comment
❑ your file/use
❑ revision and submission
❑ distribution
2 0 1 7 0 4 4 1
❑ as requested by
❑ as approved by
❑ as submitted for approval by
Copies Date Number I Description
1 3/21/17 1 1 Review Fee for Smith Circle Road — Stream Crossino Review
Comments: Please find the enclosed review fee in the amount of $240 for the previously submitted
package for the Smith Circle Road connection in the Town of Cornelius.
Signed:
If enclosures are not as noted, please notify us at once
zx-LL �� 4---,
Tim Derylak, PE
Project Manager
Tele : 704-625-5087
Fax: [phone]
tder lak@dewber .com D � V
www.dewberry.com �'/ D
APF? `' 3 2017
P:A50070656\Adm\CorrespondenceATransmittals\2016.12.19 NCDWR_Karen Higgins.doc

O��F W A TFROG
Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.4 January 2009
A.
Pre -Construction Notification (PCN) Form
Applicant Information
1.
Processing
1 a.
Type(s) of approval sought from the Corps:
❑X Section 404 Permit ❑ Section 10 Permit
1 b. Specify Nationwide Permit (NWP) number: NWP 14 or General Permit (GP) number:
1c.
Has the NWP or GP number been verified by the Corps?
❑ Yes ❑ No
1d.
Type(s) of approval sought from the DWQ (check all that apply):
0 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ❑X Riparian Buffer Authorization
1 e.
Is this notification solely for the record
because written approval is not required?
For the record only for DWQ
401 Certification:
❑ Yes ❑X No
For the record only for Corps Permit:
❑ Yes ❑X No
1f.
Is payment into a mitigation bank or in -lieu fee program proposed for
mitigation of impacts? If so, attach the acceptance letter from mitigation bank
or in -lieu fee program.
❑ Yes ❑X No
1 g.
Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h
below.
❑ Yes ❑X No
1 h.
Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes ❑x No
2.
Project Information
2a.
Name of project:
Smith Circle Connection
2b. County:
Mecklenburg
2c.
Nearest municipality / town:
Cornelius
2d.
Subdivision name:
NA
2e.
NCDOT only, T.I.P. or state project no:
NA
3.
Owner Information
3a.
Name(s) on Recorded Deed:
The Charlotte Church, Inc. inn 0
3b.
Deed Book and Page No.
Deed Book 13054, Page 648
3c.
Responsible Party (for LLC if
applicable):
i 2017
3d.
Street address:
PO Box 30153
Charlotte, North Carolina 28230 401 & BUFF R PERMITTING
3e.
City, state, zip:
3f.
Telephone no.:
3g.
Fax no.:
3h.
Email address:
Page 1 of 10
PCN Form — Version 1.4 January 2009

4.
Applicant Information (if different from owner)
4a.
Applicant is:
❑ Agent ❑X Other, specify: Town of Cornelius
4b.
Name:
Tyler Beardsley
4c.
Business name
(if applicable):
4d.
Street address:
P.O. Box 399
4e.
City, state, zip:
Cornelius, North Carolina 28031
4f.
Telephone no.:
704.892.3031
4g.
Fax no.:
704.896.2462
4h.
Email address:
[e-mail]
5.
Agent/Consultant Information (if applicable)
5a.
Name:
Terron Edwards
5b.
Business name
(if applicable):
Froehling & Robertson, Inc.
5c.
Street address:
18 Woods Lake Road
5d. City, state, zip:
Greenville, South Carolina
5e.
Telephone no.:
864.444.4210
5f.
Fax no.:
864.271.8124
5g. Email address:
[e-mail]
Page 2 of 10

B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID):
00517118
1 b. Site coordinates (in decimal degrees):
Latitude: 35.476944 Longitude: -80.873276
1 c. Property size:
2.13 acres
2. Surface Waters
2a. Name of nearest body of water to proposed project:
UT to McDowell Creek
2b. Water Quality Classification of nearest receiving water:
C (McDowell Creek)
2c. River basin:
Catawba
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
The Subject Property is undeveloped woodlands within a light commercial and residential area of Cornelius, North Carolina.
3b. List the total estimated acreage of all existing wetlands on the property: 0
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 185
3d. Explain the purpose of the proposed project:
To alleviate traffic with efficient connectivity from a dense residential area to Statesville Road by avoiding Catawba Ave. and Washam Potts Road.
3e. Describe the overall project in detail, including the type of equipment to be used:
Construct a two lane roadway connecting Smith Circle and Statesville Road. Standard road building equipment will be used.
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
project (including all prior phases) in the past?
❑ Yes ❑X No ❑ Unknown
Comments: The stream is a blue -line stream on USGS To o Ma
p p
4b. If the Corps made the jurisdictional determination, what type
of determination was made?
❑ Preliminary ❑ Final
4c. If yes, who delineated the jurisdictional areas?
Name (if known): Terron Edwards
Agency/Consultant Company: Froehling & Robertson, Inc.
Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
JDR included in submittal.
5. Project History
5a. Have permits or certifications been requested or obtained for
this project (including all prior phases) in the past?
❑ Yes ❑X No ❑ Unknown
5b. If yes, explain in detail according to "help file" instructions.
6. Future Project Plans
6a. Is this a phased project?
❑ Yes ❑X No
6b. If yes, explain.
Page 3 of 10
PCN Form — Version 1.4 January 2009

C. Proposed Impacts Inventory
1. Impacts Summary
1a. Which sections were completed below for your project (check all that apply):
❑ Wetlands ❑X Streams — tributaries ❑X Buffers ❑ Open Waters ❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
Wetland impact
number
Permanent (P) or
Temporary T
2b.
Type of impact
2c.
Type of wetland
2d.
Forested
2e.
Type of jurisdiction
Corps (404,10) or
DWQ (401, other)
2f.
Area of
impact
(acres)
W1
Choose one
Choose one
Yes/No
-
W2
Choose one
Choose one
Yes/No
W3
Choose one
Choose one
Yes/No
W4
Choose one
Choose one
Yes/No
W5
Choose one
Choose one
Yes/No
W6
Choose one
Choose one
Yes/No
2g. Total Wetland Impacts:
0
2h. Comments:
No wetland impacts are proposed.
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number
Permanent (P) or
Temporary (T)
3b.
Type of impact
3c.
Stream name
3d.
Perennial (PER) or
intermittent (INT)?
3e.
Type of
jurisdiction
3f.
Average
stream
width
(feet)
3g.
Impact
length
(linear
feet)
S1 P
Culvert
UT to McDowell Creek
PER
Corps
6
85
S2 T
Dam construction
UT to McDowell Creek
PER
Corps
6
20
S3
Choose one
S4
Choose one
S5
Choose one
S6
Choose one
3h. Total stream and tributary impacts
105
3i. Comments:
Headwalls included in impact length.
Page 4 of 10
PCN Form — Version 1.4 January 2009

4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then indivii ually list all open water impacts below.
4a.
Open water
impact number
Permanent (P) or
Temporary T
4b.
Name of waterbody
(if applicable)
4c.
Type of impact
4d.
Waterbody
type
4e.
Area of impact (acres)
01
Choose one
Choose
02
Choose one
Choose
03
Choose one
Choose
04
Choose one
Choose
4f. Total open water impacts
0
4g. Comments: No open water impacts are proposed.
5. Pond or Lake Construction
If pond or lake construction proposed, the complete the chart below.
5a.
Pond ID number
5b.
Proposed use or
purpose of pond
5c. 5d. 5e.
Wetland Impacts (acres) Stream Impacts (feet) Upland
(acres)
Flooded Filled
Excavated Flooded
Filled
Excavated
P1
Choose one
P2
Choose one
5f. Total:
5g. Comments:
Pond or Lake construction is not proposed.
5h. Is a dam high hazard permit required?
❑ Yes ❑ No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any impacts require mitigation, then you MUST fill out Section D of this form.
6a. Project is in which protected basin?
❑ Neuse ❑ Tar -Pamlico ❑X Catawba ❑ Randleman ❑ Other:
6b.
Buffer Impact
number —
Permanent (P) or
Temporary T
6c.
Reason for impact
6d.
Stream name
6e.
Buffer
mitigation
required?
6f.
Zone 1
impact
(square
feet)
6g.
Zone 2
impact
(square
feet
131 P
Road crossing/Culvert
UT to McDowell Creek
No
5,058
3,372
B2
Yes/No
B3
Yes/No
B4
Yes/No
B5
Yes/No
B6
Yes/No
6h. Total Buffer Impacts:
5,058
3,372
6i. Comments:
Page 5 of 10

D.
Impact Justification and Mitigation
1.
Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
The culvert and headwall system has been designed with the shortest possible length with respect to topographic restraints and Mecklenberg County
standards. The designed alignment has been engineered to have the shortest length of impact than alternative crossing locations.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
BMP's for culvert construction as well as erosion control measures will be strictly enforced throughout project construction.
2.
Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a.
Does the project require Compensatory Mitigation for
impacts to Waters of the U.S. or Waters of the State?
❑ Yes ❑X No
2b.
If yes, mitigation is required by (check all that apply):
❑ DWQ ❑ Corps
2c.
If yes, which mitigation option will be used for this
project?
❑ Mitigation bank
El Payment to in -lieu fee program
❑ Permittee Responsible Mitigation
3.
Complete if Using a Mitigation Bank
3a.
Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter)
Type: Choose one
Type: Choose one
Type: Choose one
Quantity:
Quantity:
Quantity:
3c. Comments:
4.
Complete if Making a Payment to In -lieu Fee Program
4a. Approval letter from in -lieu fee program is attached.
❑ Yes
4b.
Stream mitigation requested:
linear feet
4c.
If using stream mitigation, stream temperature:
Choose one
4d.
Buffer mitigation requested (DWQ only):
square feet
4e. Riparian wetland mitigation requested:
acres
4f.
Non -riparian wetland mitigation requested:
acres
4g.
Coastal (tidal) wetland mitigation requested:
acres
4h.
Comments:
5.
Complete if Using a Permittee Responsible Mitigation Plan
5a.
If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
Page 6 of 10
PCN Form — Version 1.4 January 2009

6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires
Yes No
buffer mitigation?
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.
6c.
6d.
6e.
Zone
Reason for impact
Total impact
Multiplier
Required mitigation
(square feet)
(square feet)
Zone 1
3 (2 for Catawba)
Zone 2
1.5
6f. Total buffer mitigation required:
o
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund).
6h. Comments:
Page 7 of 10

E.
Stormwater Management and Diffuse Flow Plan (required by DWQ)
1.
Diffuse Flow Plan
1a.
Does the project include or is it adjacent to protected riparian buffers identified
Yes ❑ No
within one of the NC Riparian Buffer Protection Rules?
1 b.
If yes, then is a diffuse flow plan included? If no, explain why.
❑X Yes ❑ No
2.
Stormwater Management Plan
2a.
What is the overall percent imperviousness of this project?
0.26%
2b.
Does this project require a Stormwater Management Plan?
❑X Yes ❑ No
2c.
If this project DOES NOT require a Stormwater Management Plan, explain why:
2d.
If this project DOES require a Stormwater Management Plan, then provide a brief, narrative
description of the plan:
The project involves one culvert in a perennial streambed and three culverts in ephemeral ditches. The culverts
were sized using the rational method
for
computing runoff flow (Q=CiA) and checked for overtopping, headwater and tailwater conditions using Autodesk's Hydraflow Express for Civil 3D.
The Charlotte -Mecklenburg Storm Water Design Manual (the Design Manual) was used for the design of the culverts. The Design Manual requires
that future land use conditions should be considered when using the Rational Method for calculated storm
water runoff (Ch. 2.4.1). Proposed future
development is for medium density single and multi -family residential usage.
2e.
Who will be responsible for the review of the Stormwater Management Plan?
NCDEQ
3.
Certified Local Government Stormwater Review
3a.
In which localgovernment's jurisdiction is thisproject?
Cornelius
❑ Phase II
❑ NSW
3b.
Which of the following locally -implemented stormwater management programs
❑ USMP
apply (check all that apply):
❑ Water Supply Watershed
❑X Other: Charlotte -Mecklenburg
3c.
Has the approved Stormwater Management Plan with proof of approval been
❑X Yes ❑ No
attached?
4.
DWQ Stormwater Program Review
❑Coastal counties
❑HQW
4a.
Which of the following state -implemented stormwater management programs apply
❑ORW
(check all that apply):
E] Session Law 2006-246
❑ Other:
4b.
Has the approved Stormwater Management Plan with proof of approval been
❑X Yes ❑ No
attached?
5.
DWQ 401 Unit Stormwater Review
5a.
Does the Stormwater Management Plan meet the appropriate requirements?
❑X Yes ❑ No
5b.
Have all of the 401 Unit submittal requirements been met?
❑X Yes ❑ No
Page 8 of 10
PCN Form — Version 1.4 January 2009

F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1 a. Does the project involve an expenditure of public (federal/state/local) funds or the
❑X Yes
❑ No
use of public (federal/state) land?
1 b. If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State
❑ Yes
❑X No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1c. If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
❑ Yes
❑X No
letter.)
Comments:
2. Violations (DWQ Requirement)
2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards,
E] Yes
❑X No
or Riparian Buffer Rules (15A NCAC 2B.0200)?
2b. Is this an after -the -fact permit application?
El Yes
❑X No
2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3. Cumulative Impacts (DWQ Requirement)
3a. Will this project (based on past and reasonably anticipated future impacts) result in
El Yes
❑X No
additional development, which could impact nearby downstream water quality?
3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
Best Management practices will be utilized during road construction and future residential development to prevent sedimentation to on-site and
downgradient streams.
4. Sewage Disposal (DWQ Requirement)
4a. 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.
No wastewater will be generated from this project.
Page 9 of 10
PCN Form — Version 1.4 January 2009

5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or
❑ Yes ❑X No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act
❑X Yes ❑ No
impacts?
5c. If yes, indicate the USFWS Field Office you have contacted.
Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
Natural Heritage Program GIS Data and USFWS County list of Protected Species. Carolina Heelsplitter, Smooth Coneflower, Schweinitz's Sunflower,
and Michaux's Sumac habitat were surveyed on July 7, 2016; no occurrences were found.
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat?
❑ Yes ❑X No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
http://www.habitat.noaa.gov/protection/efh/efhmapper/index.html
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation
❑ Yes ❑X No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
NC SHPO GIS Data
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA -designated 100 -year floodplain?
❑ Yes ❑X No
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination?
FEMA FIRM Map
Terron J. Edwards
Applicant/Agent's Printed Name
Date
Ap li A 6ent'i Signature
(A ignat is valid only if an authorization
letter from the applicant isprovided.)
Page 10 of 10

03-13-17;95:48 ;From: To:7044962057
SAMPLE AGENT AUTHORIZATION FORM
PROPERTY LEGAL DESCRIPTION:
LOT NO. PLAN N0. PARCEL YD: In
STREET ADDRESS:
Please print: (I I
Property -Owner: s. !� e^� TwE C tgo a*i~ Q KQ ( .
Property Owner:
The undersigned, registered property owners of the above noted property, do hereby authorize
l
--�Gt2.yLoa J, 610W*"s , of Tyw%"W£` (lo6,45,n �L ..-
(Contractor / Agent) (Name of cons (king firm)
to act on my behalf and take all actions necessary for titre processing, issuance and acceptance of
this permit or certification and any and all standard and special oonditkms attached.
Property Owner's Address (if different than property above):
PT box 30153 XC LQ r . . IJC X8230
Telephone:—.--ibLt 3q2 1o9q
We hereby certify the above information submitted In this application Is true and accurate to the
best of. our knowledge,
Authorized Signature Authorized Signature
Date: .3 13 11 Date:

SAMPLE AGENT AUTHORIZATION FORM
PROPERTY LEGAL DESCRIPTION:
LOT NO. PLAN NO. PARCEL ID: b l 1 Obsi 7 j txara"7$5
STREET ADDRESS: 19Q) 4nujj.-t AiLt 11-31V Sju,. -Ue Apm
j
Please print: r /�
Property Owner: TOWN CTS l-bTr�e�-uS
Property Owner:
The undersigned, registered property owners of the above noted property, do hereby authorize
Gh' 1Vj �, CpW S ,. of y0ek-� t r �sv.. G' c -
(Contractor / Agent) (Name of cons in firm)
to act on my behalf and take all actions necessary for the processing, issuance and acceptance of
this permit or certification and any and all standard and special conditions attached.
Property Owner's Address (if different than property above):
Telephone:
We hereby certify the above information submitted in this application is true and accurate to the
best of our knowledge,
Authorized nature Authorized Signature
Date: 3h Date:

SINCE FROEHLING & ROBERTSON, INC.
Engineering Stability Since 1881
2505 Hutchison -McDonald Road
Charlotte, North Carolina 28269
O T 704.596.2889 1 F 704.596.3784
1 8 8 1 NC License #F-0266
March 13, 2017
Ms. Karen Higgins
North Carolina Division of Water Resources
401 & Buffer Permitting Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Pre -Construction Notification for NWP 14, WQC 3886, and Catawba River Buffer
Authorization
Smith Circle Connection
Cornelius, Mecklenburg County, North Carolina
F&R Project No. 63U-0094
Ms. Higgins:
Froehling & Robertson, Inc. (F&R) is submitting this Pre -Construction Notification (PCN) to the
US Army Corps of Engineers (USACE) for written concurrence for allowable impacts to "Waters
of the United States." F&R has also sent a copy to the North Carolina Division of Water
Resources (NCDWR). F&R has been contracted by Dewberry Engineers, Inc. to provide wetland
consulting services on behalf of the Town of Cornelius for the above -referenced project site
located in Cornelius, Mecklenburg County, North Carolina. The Subject Property is located
within the Catawba River Basin.
PROJECT DESCRIPTION
The Town of Cornelius is proposing to construct an approximate 1,956 linear feet of a two-lane
asphalt roadway with curb and gutter from the southwestern frontage of Smith Circle to
connect with Statesville Road (NC Hwy 21). In addition, a ten foot wide asphalt pathway is
proposed to connect the residential Smithville Road to the new roadway. The intent of the new
roadway is to alleviate traffic in the immediate vicinity of the Subject Property. Future
development for the surrounding area will be for medium density single and multi -family
residential usage.
The impacts to Waters of the United States for this project will be 84.3 linear feet of permanent
culvert stream impacts due to the construction of a 66" reinforced concrete pipe with
associated headwalls within a perennial jurisdictional streambed near the eastern frontage of
HQ: 3015 DUMBARTON ROAD RICHMOND, VA 23228 USA T804.264.2701 F804.264.1202 www.fandr.com
VIRGINIA • NORTH CAROLINA • SOUTH CAROLINA • MARYLAND • DISTRICT OF COLUMBIA
A Minority -Owned Business

Statesville Road. The stream to be impacted received a low quality rating using the NC Stream
Assessment Method. Temporary impacts include an upgradient coffer dam and downgradient
check dams to control sedimentation during construction. Surface hydrology will be pumped
around during construction. Temporary impacts will be removed from the streambed after
stabilization. An existing 30" culvert beneath Statesville Road will be connected to the
proposed culvert system.
Buffer impacts associated with the road crossing (culvert system placement) are allowable
totaling 5,058 square feet (0.12 acres) for Zone 1 and 3,372 square feet (0.08 acres) for Zone 2.
The project has been designed in accordance with the NCDEQ Erosion and Sediment Control
Planning and Design Manual and the Charlotte -Mecklenburg Stormwater Design Manual.
PURPOSE AND NEED
The primary purpose of the proposed roadway is to provide vehicular connectivity between
Smith Circle and Statesville Road which will provide access to the immediate area that is
designated for future residential development. In addition, the new roadway will help to
alleviate local traffic congestion by providing an alternative route between a dense residential
area of Cornelius to Statesville Road through the avoidance of the heavily used Catawaba
Avenue to the north and Washam Potts Road to the south.
AVOIDANCE AND MINIMIZATION
The proposed of alignment of the new roadway is the most efficient route between Smith Circle
and Statesville Road. The proposed configuration will result in the least amount of grading and
engineered fill placement and the shortest possible culvert length with respect to the existing
topographic constraints. The culvert and associated headwalls will be installed with at least a
one -foot embedment into the stream channel so that it will not impede aquatic life movement
or create a backwater effect upstream.
A more southerly alignment would result in more environmental impact and have an impact on
the available acreage remaining for future residential development. The proposed alignment
will intersect the perennial streambed as close to perpendicular that alternative alignments
that would require greater culvert length. The proposed roadway alignment and culvert system
is the most efficient and cost-effective route to achieve the goals of the project with the least
amount of environmental impact.
Smith Cirlce Connection PCN Submittal March 13, 2017
Mecklenburg County, North Carolina Project No.63U-0094

n
u
CLOSURE
F&R is submitting this Pre -Construction Notification (PCN) with associated USGS Map, stream
and buffer impact drawings, and project plan drawings to the USACE and NCDWR for written
concurrence for the impacts listed previously. The proposed impacts to the on-site unnamed
jurisdictional tributary of McDowell Creek are considered a minor impact and should not
require compensatory mitigation. Best management practices will be utilized throught the
construction phase to prevent sedimentation impact to the on-site and downgradient Waters
of the US.
Should your office have questions pertaining to any of the information presented within the
following PCN or its attachments, please contact the undersigned.
Respectfully Submitted,
FROEHLING & ROBERTSON, INC.
Terron J. Edwards
Senior Environmental Scientist
Attachments:
Figures
Site Photographs
NCDWR Stream Forms
Stormwater Report
Smith Cirlee Connection PCN Submittal March 13, 2017
Mecklenburg County, North Carolina Project No. 63U-0094

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ENGINEERING • ENVIRONMENTAL • GEOTECHNICAL
2505 Hutchinson -McDonald Road
Charlotte, North Carolina I USA
T 704.596.2889 1 F 704.596.3784
Client: Dewberry Engineers, Inc.
Pro'ect: Smithville Road Connections Tract NWP PCN
Location: Cornelius, Mecklenburg County, North Carolina
F&R Project No: 63U-0094
Source: Google Maps
Date: March 13, 2017 Scale: Not Shown Figure 1 of 18

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ENGINEERING • ENVIRONMENTAL • GEOTECHNICAL
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Client: DewberrV Engineers,
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Project: Smithville Road Connections Tract NWP PCN
Location: Cornelius, Mecklenburg County, North Carolina
F&R Project No: 63U-0094
Source: I USGS 7.5 -Minute Topo "Cornelius, NC", 1993
Date: March 13, 2017 1 Scale: Not Shown Figure 2 of 18

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ENGINEERING • ENVIRONMENTAL • GEOTECHNICAL Pro'ect: Smithville Road Connections Tract NWP PCN
F$cR 2505 Hutchinson -McDonald Road Location: Cornelius, Mecklenburg County, North Carolina
F&R Project No: 63U-0094
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Client: Dewberry Engineers, Inc.
Project: Smithville Road Connections Tract
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Client: Dewberry Engineers, Inc.
Project: Smithville Road Connections Tract
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Client: Dewberry Engineers, Inc.
Project: Smithville Road Connections Tract
Location: Cornelius, Mecklenburg County, North Carolina
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Source: Dewberry
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ENGINEERING • ENVIRONMENTAL • GEOTECHNICAL
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Charlotte, North Carolina I USA
T 704.596.2889 1 F 704.596.3784
Client: Dewberry Engineers, Inc.
Project: Smithville Road Connections Tract
Location: Cornelius, Mecklenburg County, North Carolina
F&R Project No: 63U-0094
Source: Dewberry
Date: March 13 2017 Scale: As Shown Figure 10 of 18

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T 704.596.2889 1 F 704.596.3784
Client: Dewberry Engineers, Inc.
Project: Smithville Road Connections Tract
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Project: Smithville Road Connections Tract
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ENGINEERING • ENVIRONMENTAL • GEOTECHNICAL
2505 Hutchinson -McDonald Road
Charlotte, North Carolina I USA
T 704.596.28891 F 704.596.3784
Client: Dewberry Engineers, Inc.
Project: Smithville Road Connections Tract
Location: Cornelius, Mecklenburg County, North Carolina
F&R Project No: 63U-0094
Source: Dewberry
Date: March 13 2017 Scale: As Shown Figure 12 of 18

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ENGINEERING • ENVIRONMENTAL • GEOTECHNICAL
2505 Hutchinson -McDonald Road
Charlotte, North Carolina I USA
T 704.596.28891 F 704.596.3784
Client: Dewberry Engineers, Inc.
Project: Smithville Road Connections Tract
Location: Cornelius, Mecklenburg County, North Carolina
F&R Project No: 63U-0094
Source: Dewberry
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Charlotte, North Carolina I USA
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Client: Dewberry Engineers, Inc.
Project: Smithville Road Connections Tract
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F&R Project No: 63U-0094
Source: Dewberry
Date: March 13 2017 Scale: As Shown Figure 13 of 18

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ENGINEERING • ENVIRONMENTAL • GEOTECHNICAL
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Charlotte, North Carolina I USA
T 704.596.28891 F 704.596.3784
Client: Dewberry Engineers, Inc.
Project: Smithville Road Connections Tract
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Charlotte, North Carolina I USA
T 704.596.28891 F 704.596.3784
Client: Dewberry Engineers, Inc.
Project: Smithville Road Connections Tract
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Source: Dewberry
Date: March 13 2017 Scale: As Shown Figure 14 of 18

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LOCATION OF SANITARY SEWER LINE r
RIPARIAN BUFFER IMPACTS
FROEHLING & ROBERTSON, INC. Client: Dewberry Engineers, Inc.
Fnn ENGINEERING • ENVIRONMENTAL • GEOTECHNICAL Project: Smithville Road Connections Tract
JC.K 2505 Hutchinson -McDonald Road Location: Cornelius, Mecklenburg County, North Carolina
V� Charlotte, North Carolina I USA F&R Project No: 63U-0094
T 704.596.2889 1 F 704.596.3784 Source: Dewberry
as, Date: March 13 2017 Scale: Not Shown Figure 17 of 18

PROPOSED SMITHVILLE ROAD CONNECTIONS TRACT
JURISDICTIONAL WETLAND DELINEATION
19220 STATESVILLE ROAD
CORNELIUS, MECKLENBURG COUNTY, NORTH CAROLINA
Photograph 1: View of the perennial Stream 1,000 where it enters the wooded
northwestern corner of the Subject Property (background).
Photograph 2: View of the perennial Stream 1,000 in the northwestern portion of the
Subject Property, looking north.

PROPOSED SMITHVILLE ROAD CONNECTIONS TRACT
JURISDICTIONAL WETLAND DELINEATION
19220 STATESVILLE ROAD
CORNELIUS, MECKLENBURG COUNTY, NORTH CAROLINA
Photograph 3: View of the perennial Stream 1,000 in the northwestern portion of the
Subject Property, looking south.
Photograph 4: Looking downstream along the perennial Stream 1,000 in the western
portion of the tract.

PROPOSED SMITHVILLE ROAD CONNECTIONS TRACT
JURISDICTIONAL WETLAND DELINEATION
19220 STATESVILLE ROAD
CORNELIUS, MECKLENBURG COUNTY, NORTH CAROLINA
Photograph 5: View looking downstream along the perennial Stream 1,000 in the
southwestern portion of the Subject Property.
Photograph 6: View along the perennial Stream 1,000 near where it exits the Subject
Property, looking downstream.

PROPOSED SMITHVILLE ROAD CONNECTIONS TRACT
JURISDICTIONAL WETLAND DELINEATION
19220 STATESVILLE ROAD
CORNELIUS, MECKLENBURG COUNTY, NORTH CAROLINA
Photograph 7: Perennial Stream 1,000 Ephemeral at the southwestern property
limits, looking south.
Photograph 8: Typical view within the uplands located within the western central
portion of the Subject Property.

PROPOSED SMITHVILLE ROAD CONNECTIONS TRACT
JURISDICTIONAL WETLAND DELINEATION
19220 STATESVILLE ROAD
CORNELIUS, MECKLENBURG COUNTY, NORTH CAROLINA
Photograph 9: Additional view of uplands located in the western central portion of
the Subject Property.
Photograph 10: View just upgradient of the origin of the ephemeral Stream 2,000 in
the southwestern portion of the Subject Property, looking north.

PROPOSED SMITHVILLE ROAD CONNECTIONS TRACT
JURISDICTIONAL WETLAND DELINEATION
19220 STATESVILLE ROAD
CORNELIUS, MECKLENBURG COUNTY, NORTH CAROLINA
Photograph 11: View of the origin of the ephemeral Stream 2,000 in the
southwestern portion of the Subject Property, looking south.
Photograph 12: View of the middle reach of the ephemeral Stream 2,000 in the
southwestern portion of the Subject Property.

PROPOSED SMITHVILLE ROAD CONNECTIONS TRACT
JURISDICTIONAL WETLAND DELINEATION
19220 STATESVILLE ROAD
CORNELIUS, MECKLENBURG COUNTY, NORTH CAROLINA
Photograph 13: View of the lower reach of the ephemeral Stream 2,000 near its
confluence with the perennial Stream 1,000, looking west-southwest.
Photograph 14: Typical uplands located in the southwestern central portion of the
Subject Property, looking northeast.
C

PROPOSED SMITHVILLE ROAD CONNECTIONS TRACT
JURISDICTIONAL WETLAND DELINEATION
19220 STATESVILLE ROAD
CORNELIUS, MECKLENBURG COUNTY, NORTH CAROLINA
Photograph 15: Typical uplands located in the central portion of the Subject
Property.
Photograph 16: Uplands located in the eastern portion of the Subject Property,
looking south.

USACE AID# DWQ # Site # (indicate on attached map)
STREAM QUALITY ASSESSMENT WORKSHEET
Provide the following information for the stream reach under assessment:
1. Applicant's name: —T�, m 1i) tryw,
3. Date of evaluation: 'I • T 2O 1 to
5. Name of stream:yhrlyMnEr1 ri6a MtDaWutlt
•f''�* GreJA
7. Approximate drainage area: 2 eu r&
►
9. Length of reach evaluated: q 9
2. Evaluator's name: TEftnorJ 10wmzos
4. Time of evaluation: 133,0
6. River basin: i' 2 4 AW 6,;L
8. Stream order: S.
10. County: (Y)e dck"a r A
11. Site coordinates (if known): prefer in decimal degrees. 12. Subdivision name (if any): p AIA
Latitude (ex. 34.872312): 3 5 • Lk -1 (n9 `II y 5 Longitude (ex. –77.556611): 00ri 3 27 f'o
Method location determined (circle): GPS Topo Sheet Ortho (Aerial) hoto/GIS Othe► G�,,ntifying
Other
13. Location of reach under evaluation (note near y roads and landmar s an at
map"stream(s) location):
P -.a! 4,e woalir eao,xr\ 15it°►}it5y%1Le FoAuo , AVpprWim/ft(`1 D,4 m:i E -t, 3o, 40 it &VE,
14. Proposed channel work (if any): CLLWeArk I k6y►propos $mfg►-ri11� RoM�
15. Recent weather conditions:
emir y4++-✓
-
16. Site conditions at time of visit: �n4A *Uk woJ.J -a . Ko ✓Q-.I�- 5 itni�icwA IiG1nw✓
17. Identify any special waterway classifications known: _Section 10 _Tidal Waters _Essential Fisheries Habitat
Trout Waters Outstanding Resource Waters — Nutrient Sensitive Waters Water Supply Watershed (I-IV)
18. Is there a pond or lake located upstream of the evaluation point? YES CO) If yes, estimate the water surface area:
19. Does channel appear on USGS quad map? ® NO 20. Does channel appear on USDA Soil Survey? YES NO
21. Estimated watershed land use: % Residential (0 % Commercial _% Industrial _% Agricultural
% Forested _% Cleared / Logged _% Other (
22. Bankfull width: �v ► 23. Bank height (from bed to top of bank): S
24. Channel slope down center of stream: _Flat (0 to 2%) _Gentle (2 to 4%) _Moderate (4 to 10%) _Steep (>10%)
25. Channel sinuosity: Straight ✓ Occasional bends _Frequent meander _Very sinuous Braided channel
Instructions for completion of worksheet (located on page 2): Begin by determining the most appropriate ecoregion based on
location, terrain, vegetation, stream classification, etc. Every characteristic must be scored using the same ecoregion. Assign points
to each characteristic within the range shown for the ecoregion. Page 3 provides a brief description of how to review the
characteristics identified in the worksheet. Scores should reflect an overall assessment of the stream reach under evaluation. If a
characteristic cannot be evaluated due to site or weather conditions, enter 0 in the scoring box and provide an explanation in the
comment section. Where there are obvious changes in the character of a stream under review (e.g., the stream flows from a pasture
into a forest), the stream may be divided into smaller reaches that display more continuity, and a separate form used to evaluate each
reach. The total score assigned to a stream reach must range between 0 and 100, with a score of 100 representing a stream of the
highest quality.
Total Score (from reverse): l ( Com
Evaluator's Signature ZDate 9 , 1z , Zol b
This channel evaluation is ina ded to be used only as a guide to assist landowners and environmental professionals in
gathering the data required by the United States Army Corps of Engineers to make a preliminary assessment of stream
quality. The total score resulting from the completion of this form is subject to USACE approval and does not imply a
particular mitigation ratio or requirement. Form subject to change – version 06/03. To Comment, please call 919-876-8441 x 26.

STREAM QUALITY ASSESSMENT WORKSHEET
* These characteristics are not assessed in coastal streams.
#�
`�COItCGION POINTRAI�GCCOR
#'�
g; CHARACTERTSTICSr'
�
C _ , w Piedmont
Mo►uuu►n
�'"
Presence of flow ! persistent pools in stream
0-5
0-4
0-5
2
(no flow or satwration = 0; strong flow ='max points)
��
2
Evidence of past human alteration
0-6
0-5
0-5
f
(extensive alteration = 0; no alteration max points)
Riparian zone
3
(no buffer = 0; contiguous, wide buffer max points)
0=6
0-4
0-5
4
Evidence of nutrient or chemical discharges
0-5
0-4
0-4
3
(extensive discharges = 0; no discharges = max points)
Groundwater discharge
O
(no discharge 0; springs, seeps, wetlands, etc. = maxpoints)
6
Presence of adjacent floodplain
0-4
0-4
0-2
(no floodplain — 0; extensive floodplain —,max points)
Entrenchment/ floodplain access
0.-5
0-4
0 —2�
(deeply entrenched 0; frequent flooding = max points)1J
"
^ 8
Presence of adjacent wetlands
0-6
0-4
0-2
(no wetlands = 0; large adjacent wetlands = max points)
-
O
9
Channel sinuosity
0--5
0 4
0-3
(extensive channelization = 0; natural meander - max points)
100-5
Sediment input
(extensive deposition 0; little or no sediment max points)
0-4
0-4
ll
Size & diversity of channel bed substrate
NA*
A-4
0 5
U
(fine; homogenous = 0; large, diverse sizes = max points)
-
12
Evidence of channel incision or widening
(deeply incised = 0; stable bed & banks maxpoints).
0-5
0-4
0-5_ "
13
Presence of major bank failures
j
0=5
0-5
0=5
(severe erosion = 0; no erosion, stable banks'— max points)_
14
Root depth and density on banks
0-73
0 -4
0 --5
E=�
(no visible roots = 0; dense roots throughout — max points)
x.
15
Impact by agriculture, livestock, or timber production
0-5
0-4
0-5
1.�.
(substantial impact =0; no evidence = max points)
16
Presence of riffle-pool/ripple-pool complexes
0'-3
0-5
0-6
(no `riffles/ri les or pools = 0;well-developed — max oints)�'
17
habitat complexity
0 — 6
0 — 6
(little or no habitat = 0; frequent, varied habitats = max points)0-6
aY1
18
Canopy coverage over streambed
0 S
(no shading vegetation 0; continuous canopy max points) -
=
5
^i
19
Substrate embeddedness"
NA *
0 --4
0 — 4,
(deeply embedded =_0; loose structure —max)
O ;
Presence of stream invertebrates (see page 4)
0-4
0 - 5
0 5
194.
20
no evidence — 0; comm
( — on, numerous types points)
—
U
.:
=t.
3
21
Presence of amphibians
0-4
0-4
0-4
(�
O=
(no evidence = 0; common, numerous types = maxpoints)
a.
0.
22
Presence of fish
0;
0=4
0-4
0
w'
(no evidence = common,numerous types ;=tnaxpoints)
0{
23
Evidence of wildlife use
0-6
0-5
0-5
(no evidence = 0; abundant evidence — max points)
T"I Points Possible
j00
100
100
�, m 'TOTAL SCORE also e ter o ir�l age) Oj a
1
MEN
.unm"K`:. ., i.
* These characteristics are not assessed in coastal streams.

NP ViWn Ctrnam Trlonfifirafinn Fnrm Vorcinn 4.11
Date:
`l I
Project/Site: 5rn'�°1t% Qa1AO
ce rack-
Latitude: 35. 4�
Evaluator: "f♦ egew � W mtr�g
County: Cdc it n b� r
Longitude: _ 82
Total Points:
Stream Determination (circle on
Other Cp rn.,X;u5 NC
Stream is at least intermittent
Intermittent erennial
e.g. Quad Name:
if >_ 19 or perennial if >_ 30*
2
3
A. Geomorphology (Subtotal= Z. )
Absent
Weak
Moderate
Strong
18 Continuity of channel bed and bank
0
1
2
3
2. Sinuosity of channel along thalweg
0
1
2
3
3. In -channel structure: ex. riffle -pool, step -pool,
ripple -pool sequence
0O
0.5
2
3
4. Particle size of stream substrate
0
1
2
3
5. Active/relict floodplain
0
1
2
3
6. Depositional bars or benches
0
1
1
3
7. Recent alluvial deposits
0
1
2
3
8. Headcuts
0
1
2
3
9. Grade control
0
0.5
1
1.5
10. Natural valley
0
0.5'
1
1.5
11. Second or greater order channel
No = 0
Yes = 3
- artiticial ditches are not ratec; see alscussions in manual
rl WwArnlnnv rSnhfn+nl = E C 1
12. Presence of Baseflow
0
1
2
3
13. Iron oxidizing bacteria
0
1
2
3
14. Leaf litter
1.5
1
0.5
0
15. Sediment on plants or debris
0
0.5
1
1.5
16. Organic debris lines or piles
0
1 0.5
1
1.5
17. Soil -based evidence of high water table?
No 0
Yes = 3
1.5
r` Rinlnnv !Ci ihtntal = a(. '7 1
18. Fibrous roots in streambed
3
2
1CO)
19. Rooted upland plants in streambed
3
2
1
0
20. Macrobenthos (note diversity and abundance)
0
1
2
3
21. Aquatic Mollusks
0
1
2
3
22. FishAE
0.5
1
1.5
23. Crayfish
0.5
1
1.5
24. Amphibians
0.5
1
1.5
25. Algae
0
0.5
1
1.5
26. Wetland plants in streambed
FACW = 0.75; OBL = 1.5
Other 0
*perennial streams may also be identified using other methods. See p.
35 of manual.
Notes:
Sketch: 5'pt F �u►r2 (.0 LN'

TOWN OF CORNELIUS
SMITH CIRCLE CONNECTION
PRELIMINARY DESIGN CALCULATIONS
(100% CONSTRUCTION DOCUMENTS)
Prepared For:
Town of Cornelius
Cornelius, NC 28031
November 28, 2016
SUBMITTED BY:
�1y' Dewberry
CARp'
.���0; oF�S8r4•• � ''•�
2 r
39
/frrrrrr
NCBELS F-0929
Dewberry Engineers Inc.
9300 Harris Corners Parkway, Suite 220
Charlotte, NC 28269

EXISTING CONDITIONS
The proposed road connection is located in Cornelius, NC and will connect Smith Circle with Highway
21/Statesville road. The existing surrounding area is a mix of residential, wooded, and open grassed
areas. Four cross culverts are needed for the roadway design. They are located approximately at stations
00+90, 04+30, 17+65 and 18+05.
The culverts were sized using the rational method for computing runoff flow (Q=CiA) and checked for
overtopping, headwater and tailwater conditions using Autodesk's Hydraflow Express for Civil 3D.
The Charlotte -Mecklenburg Storm Water Design Manual (the Design Manual) was used for the design of
the culverts. The Design Manual requires that future land use conditions should be considered when
using the Rational Method for calculated storm water runoff (Ch. 2.4.1).
Flow Calculations
Based on the Town of Cornelius' Land Use Map dated January 6, 2014, the surrounding area is intended
for Medium Density Residential development. The Town's Land Use Plan dated January 6, 2014 allows
for single and multi -family residential development in Medium Density Residential areas with
approximately 2-4 dwelling units per acre. The Design Manual includes recommended runoff coefficient
values (C) in Table 2-4. A C value of 0.60 is recommended for single-family lots less than 20,000 sf and a
C value of 0.70 is recommended for multi -family attached lots. A 50/50 mix of single and multi -family
residential was assumed for these calculations and an average C value of 0.65 was used unless noted
otherwise.
Using LiDar contour data provided by Mecklenburg County, the drainage areas for each culvert were
delineated and are summarized below.
Culvert 1 at Sta. 00+90: 65.0 acres
Culvert 2 at Sta. 04+30: 24.0 acres
Culvert 3 at Sta. 17+65: 0.7 acres
Culvert 4 at Sta. 18+05: 12.0 acres
As required by the Design Manual, the culverts were designed to carry the flow generated by the 25
year storm (Ch. 2.3.1- Culverts/Cross-drain (subdivision streets)). The rainfall intensity of the 25 year
storm in the Charlotte, NC area is 8.21 in/hr (Ch. 2.3.2 - Table 2-2).
The flows were then calculated as shown below:
Culvert 1 at Sta. 00+90: 187.15 cfs
Culvert 2 at Sta. 04+30: 82.65 cfs
Culvert 3 at Sta. 17+65: 2.23 cfs
Culvert 4 at Sta. 18+05: 40.35 cfs

Culvert Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Monday, Dec 19 2016
Culvert #1
Invert Elev Dn (ft)
= 750.42
Calculations
Pipe Length (ft)
= 97.80
Qmin (cfs)
= 187.15
Slope (%)
= 2.25
Qmax (cfs)
= 226.76
Invert Elev Up (ft)
= 752.62
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 66.0
Shape
= Circular
Highlighted
Span (in)
= 66.0
Qtotal (cfs)
= 187.15
No. Barrels
= 1
Qpipe (cfs)
= 187.15
n -Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 8.71
Culvert Entrance
= Square edge w/headwall (C)
Veloc Up (ft/s)
= 10.61
Coeff. K,M,c,Y,k
= 0.0098, 2, 0.0398, 0.67, 0.5
HGL Dn (ft)
= 755.08
HGL Up (ft)
= 756.45
Embankment
Hw Elev (ft)
= 758.74
Top Elevation (ft)
= 772.00
Hw/D (ft)
= 1.11
Top Width (ft)
= 26.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 50.00
Elev (ft)
774.00
770.00
766.00
762.00
768.00
764.00
760.00
746.00
Culvert S7
M.v Depth (ft)
21.38
17.38
13.38
9.38
6.38
1.36
-282
-E E2
R.Ch (e)
Circular Culvert HGL Emhenk

Culvert Report
Hydraflow Express Extension for Autodesk@ AutoCADO Civil 3D@ by Autodesk, Inc. Monday, Dec 19 2016
Culvert #2
Invert Elev Dn (ft)
= 758.87
Calculations
Pipe Length (ft)
= 54.50
Qmin (cfs)
= 82.65
Slope (%)
= 1.56
Qmax (cfs)
= 85.00
Invert Elev Up (ft)
= 759.72
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 48.0
Shape
= Circular
Highlighted
Span (in)
= 48.0
Qtotal (cfs)
= 82.65
No. Barrels
= 1
Qpipe (cfs)
= 82.65
n -Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 7.30
Culvert Entrance
= Square edge w/headwall (C)
Veloc Up (ft/s)
= 8.96
Coeff. K,M,c,Y,k
= 0.0098, 2, 0.0398, 0.67, 0.5
HGL Dn (ft)
= 762.25
HGL Up (ft)
= 762.47
Embankment
Hw Elev (ft)
= 764.11
Top Elevation (ft)
= 768.40
Hw/D (ft)
= 1.10
Top Width (ft)
= 44.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 50.00
Ele (e)
770.00
786.00
786.00
764.00
76200
760.00
758.00
755 X
Culvert #2
Mui Depth (fl)
70.28
8.28
628
4.28
2.28
028
-172
-3.72
R -h (8)
Circular Cubert MOL Embank

Culvert Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Monday, Dec 19 2016
Culvert 3
Invert Elev Dn (ft)
= 784.84
Calculations
Pipe Length (ft)
= 36.80
Qmin (cfs)
= 2.23
Slope (%)
= 4.51
Qmax (cfs)
= 2.23
Invert Elev Up (ft)
= 786.50
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 15.0
Shape
= Circular
Highlighted
Span (in)
= 15.0
Qtotal (cfs)
= 2.23
No. Barrels
= 1
Qpipe (cfs)
= 2.23
n -Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 2.30
Culvert Entrance
= Square edge w/headwall (C)
Veloc Up (ft/s)
= 3.86
Coeff. K,M,c,Y,k
= 0.0098, 2, 0.0398, 0.67, 0.5
HGL Dn (ft)
= 785.76
HGL Up (ft)
= 787.10
Embankment
Hw Elev (ft)
= 787.33
Top Elevation (ft)
= 790.28
Hw/D (ft)
= 0.67
Top Width (ft)
= 36.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 36.00
5 10
15
El. (ft)
791.00
790.60
769.00
786.00
787.00
786.00
765.00
784.00
753. DO
<Name>
Hw Depth (ft)
450
3.60
Circular Culvert HGL Embank
Reach (ft)
2.50
1,50
0.50
-0,60
-1.50
-2.50
-3.50
0
5 10
15
20
25
30
35
40
45 So
55
60
Circular Culvert HGL Embank
Reach (ft)
2.50
1,50
0.50
-0,60
-1.50
-2.50
-3.50

Culvert Report
Hydraflow Express Extension for Autodesk@ AutoCADO Civil 3DO by Autodesk, Inc.
Monday, Dec 19 2016
Culvert #4
Invert Elev Dn (ft)
= 783.51
Calculations
Pipe Length (ft)
= 45.80
Qmin (cfs)
= 40.35
Slope (%)
= 3.69
Qmax (cfs)
= 48.84
Invert Elev Up (ft)
= 785.20
Tailwater Elev (ft)
= (dc+D)/2
Rise (in)
= 36.0
Shape
= Circular
Highlighted
Span (in)
= 36.0
Qtotal (cfs)
= 40.35
No. Barrels
= 1
Qpipe (cfs)
= 40.35
n -Value
= 0.012
Qovertop (cfs)
= 0.00
Culvert Type
= Circular Concrete
Veloc Dn (ft/s)
= 6.34
Culvert Entrance
= Square edge w/headwall (C)
Veloc Up (ft/s)
= 7.77
Coeff. K,M,c,Y,k
= 0.0098, 2, 0.0398, 0.67, 0.5
HGL Dn (ft)
= 786.04
HGL Up (ft)
= 787.27
Embankment
Hw Elev (ft)
= 788.47
Top Elevation (ft)
= 790.50
Hw/D (ft)
= 1.09
Top Width (ft)
= 44.00
Flow Regime
= Inlet Control
Crest Width (ft)
= 50.00
Elev (ft)
Profile
Hw Depth (ft)
791.00 1 1 1
1 1 1 1 1
1 1 1 1
1 5.80
790.00
789.00
788.00
787.00
786.00
785.00
784.00
783.00
4.80
3.80
2.80
1.80
0.80
-0.20
-1.20
-2.20
782.00 1 1' ' ' ' ' ' ' ' ' ' ' ' -3.20
0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 65.0 70.0
Reach (ft)

1
Hydrograph Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D@2016 by Autodesk, Inc. 00.5 Friday, 11 / 4 / 2016
Hyd. No. 1
Smithville Rd - Culvert 1
Hydrograph type
= Rational
Peak discharge
= 187.15 cfs
Storm frequency
= 25 yrs
Time to peak
= 32 min
Time interval
= 1 min
Hyd. volume
= 359,337 cuft
Drainage area
= 65.000 ac
Runoff coeff.
= 0.71 *
Intensity
= 4.055 in/hr
Tc by TR55
= 32.00 min
OF Curve
= Charlotte.IDF
Asc/Rec limb fact
= 1/1
Composite (Area/C) = [(38.000 x 0.65) + (27.000 x 0.80)] / 65.000
Q (cfs)
210.00
180.00
150.00
120.00
90.00
60.00
30.00
0 00
Smithville Rd - Culvert 1
Hyd. No. 1 -- 25 Year
Q (cfs)
210.00
180.00
150.00
120.00
90.00
60.00
30.00
0 00
0 10 20 30 40 50 60 70
Hyd No. 1 Time (min)

TR55 Tc Worksheet
Hyd. No. 1
Smithville Rd - Culvert 1
Description
Sheet Flow
Manning's n -value
Flow length (ft)
Two-year 24 -hr precip. (in)
Land slope (%)
Travel Time (min)
Shallow Concentrated Flow
Flow length (ft)
Watercourse slope (%)
Surface description
Average velocity (ft/s)
Travel Time (min)
Channel Flow
X sectional flow area (sqft)
Wetted perimeter (ft)
Channel slope (%)
Manning's n -value
Velocity (ft/s)
Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc. v10.5
A
= 0.150
= 253.0
= 3.12
= 2.00
= 60.00
= 2.00
= Paved
=2.87
= 0.35
= 16.00
= 13.00
= 2.30
= 0.050
=5.19
B
0.011
0.0
3.12
0.00
+ 0.00
971.00
3.50
Unpaved
3.02
+ 5.36
0.00
0.00
0.00
0.015
N0001111
C
0.011
0.0
0.00
0.00
+ 0.00
0.00
0.00
Paved
0.00
+ 0.00
0.00
0.00
0.00
0.015
0.00
Flow length (ft) ({0})1562.0 0.0 0.0
Travel Time (min) = 5.01 + 0.00 + 0.00
Total Travel Time, Tc..............................................................................
Totals
= 20.85
5.71
5.01
32.00 min

3
Hydrograph Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v10.5
Friday, 11 / 4 / 2016
Hyd. No. 2
Smithville Rd - Culvert 2
Hydrograph type
= Rational
Peak discharge
= 82.65 cfs
Storm frequency
= 25 yrs
Time to peak
= 19 min
Time interval
= 1 min
Hyd. volume
= 94,216 cuft
Drainage area
= 24.000 ac
Runoff coeff.
= 0.65
Intensity
= 5.298 in/hr
Tc by TR55
= 19.00 min
OF Curve
= Charlotte.IDF
Asc/Rec limb fact
= 1/1
Q (cfs)
90.00
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
Smithville Rd - Culvert 2
Hyd. No. 2 -- 25 Year
Q (cfs)
90.00
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00 ie i i i i i i i i i i i i i i i i 1 1 3 0.00
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Hyd No. 2 Time (min)

4
TR55 Tc Worksheet
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D@2016 by Autodesk, Inc. v10.5
Hyd. No. 2
Smithville Rd - Culvert 2
Description
A
B
C
Totals
Sheet Flow
Manning's n -value
= 0.150
0.011
0.011
Flow length (ft)
= 100.0
0.0
0.0
Two-year 24 -hr precip. (in)
= 3.12
3.12
0.00
Land slope (%)
= 1.00
0.00
0.00
Travel Time (min)
= 13.09 +
0.00 +
0.00 =
13.09
Shallow Concentrated Flow
Flow length (ft)
= 390.00
232.00
0.00
Watercourse slope (%)
= 3.60
3.40
0.00
Surface description
= Unpaved
Unpaved
Paved
Average velocity (ft/s)
=3.06
2.98
0.00
Travel Time (min)
= 2.12 +
1.30 +
0.00 =
3.42
Channel Flow
X sectional flow area (sqft)
= 1.50
12.00
0.00
Wetted perimeter (ft)
= 3.20
10.00
0.00
Channel slope (%)
= 3.20
3.10
0.00
Manning's n -value
= 0.026
0.050
0.015
Velocity (ft/s)
=6.17
5.93
0.00
Flow length (ft)
({0})315.0
651.0
0.0
Travel Time (min)
= 0.85 +
1.83 +
0.00 =
2.68
Total Travel Time, Tc..............................................................................
19.00 min

Hydrograph
Report
5
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk,
Inc. v10.5
Friday, 11 / 4 / 2016
Hyd. No. 3
Smithville Rd - Culvert 3
Hydrograph type
= Rational
Peak discharge
= 2.233 cfs
Storm frequency
= 25 yrs
Time to peak
= 5 min
Time interval
= 1 min
Hyd. volume
= 670 cuft
Drainage area
= 0.680 ac
Runoff coeff.
= 0.4
Intensity
= 8.209 in/hr
Tc by User
= 5.00 min
OF Curve
= Charlotte.IDF
Asc/Rec limb fact
= 1/1
Q (cfs)
3.00
2.00
1.00
0.00 y '
0 1
Hyd No. 3
Smithville Rd - Culvert 3
Hyd. No. 3 -- 25 Year
2 3 4 5 6 7 8 9
Q (cfs)
3.00
2.00
1.00
N 0.00
10
Time (min)

Hydrograph Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v10.5
Hyd. No. 4
Smithville Rd - Culvert 4
Hydrograph type
= Rational
Peak discharge
Storm frequency
= 25 yrs
Time to peak
Time interval
= 1 min
Hyd. volume
Drainage area
= 12.000 ac
Runoff coeff.
Intensity
= 5.173 in/hr
Tc by TR55
OF Curve
= Charlotte.IDF
Asc/Rec limb fact
Q (cfs)
50.00
40.00
30.00
20.00
10.00
0.00 be i i i i
0 2 4 6 8
Hyd No. 4
Smithville Rd - Culvert 4
Hyd. No. 4 -- 25 Year
6
Friday, 11 / 4 / 2016
= 40.35 cfs
= 20 min
= 48,415 cuft
= 0.65
= 20.00 min
= 1/1
Q (cfs)
50.00
40.00
30.00
20.00
10.00
_, I I I 1 I I 1 I I I I 1 1 3 0.00
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
Time (min)

7
TR55 Tc Worksheet
Hydrafl°w Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. 00.5
Hyd. No. 4
Smithville Rd - Culvert 4
Description
A
B
C
Totals
Sheet Flow
Manning's n -value
= 0.150
0.011
0.011
Flow length (ft)
= 100.0
0.0
0.0
Two-year 24 -hr precip. (in)
= 3.12
2.20
0.00
Land slope (%)
= 1.00
0.00
0.00
Travel Time (min)
= 13.09 +
0.00 +
0.00 =
13.09
Shallow Concentrated Flow
Flow length (ft)
= 479.00
139.00
0.00
Watercourse slope (%)
= 2.70
3.60
0.00
Surface description
= Unpaved
Unpaved
Paved
Average velocity (ft/s)
=2.65
3.06
0.00
Travel Time (min)
= 3.01 +
0.76 +
0.00 =
3.77
Channel Flow
X sectional flow area (sqft)
= 1.00
0.00
0.00
Wetted perimeter (ft)
= 2.00
0.00
0.00
Channel slope (%)
= 2.20
0.00
0.00
Manning's n -value
= 0.026
0.015
0.015
Velocity (ft/s)
=5.34
0.00
0.00
Flow length (ft)
({0})952.0
0.0
0.0
Travel Time (min)
= 2.97 +
0.00 +
0.00 =
2.97
Total Travel Time, Tc..............................................................................
20.00 min

8
Hydrograph Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v10.5
Friday, 11 / 4 / 2016
Hyd. No. 5
SWALE 2
Hydrograph type
= Rational
Peak discharge
= 11.82 cfs
Storm frequency
= 25 yrs
Time to peak
= 13 min
Time interval
= 1 min
Hyd. volume
= 9,084 cuft
Drainage area
= 5.400 ac
Runoff coeff.
= 0.35*
Intensity
= 6.254 in/hr
Tc by TR55
= 12.81 min
OF Curve
= Charlotte.IDF
Asc/Rec limb fact
= 1/1
Composite (Area/C) = [(1.130 x 0.45) + (2.730 x 0.20) + (1.860 x 0.30) + (1.000 x 0.75)] /5.400
Q (cfs)
12.00
10.00
Nam
.M
4.00
2.00
0.00 ' " ' '
0 2 4
Hyd No. 5
6 8
SWALE 2
Hyd. No. 5 -- 25 Year
Q (cfs)
12.00
10.00
4.00
2.00
I_ l I I I 1 I I 0.00
10 12 14 16 18 20 22 24 26
Time (min)

TR55 Tc Worksheet
Hyd. No. 5
SWALE 2
Description
Sheet Flow
Manning's n -value
Flow length (ft)
Two-year 24 -hr precip. (in)
Land slope (%)
Travel Time (min)
Shallow Concentrated Flow
Flow length (ft)
Watercourse slope (%)
Surface description
Average velocity (ft/s)
Travel Time (min)
Channel Flow
X sectional flow area (sqft)
Wetted perimeter (ft)
Channel slope (%)
Manning's n -value
Velocity (ft/s)
J
Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc. v10.5
A
= 0.150
= 100.0
= 3.12
= 2.00
= 9.92
= 150.00
= 2.00
= Unpaved
=2.28
= 1.10
= 18.00
= 12.47
= 4.80
= 0.045
=9.28
B
0.011
0.0
0.00
0.00
+ 0.00
0.00
0.00
Paved
0.00
+ 0.00
6.00
6.47
3.70
0.026
`j1XIDj
C
0.011
0.0
0.00
0.00
+ 0.00
0.00
0.00
Paved
0.00
+ 0.00
0.00
0.00
0.00
0.015
0.00
Flow length (ft) ({0})321.0 763.0 0.0
Travel Time (min) = 0.58 + 1.21 + 0.00
TotalTravel Time, Tc..............................................................................
Totals
9.92
= 1.10
1.79
12.81 min

Hydrograph Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 31D® 2016 by Autodesk, Inc. v10.5
Hyd. No. 6
SWALE 3
Hydrograph type
= Rational
Peak discharge
Storm frequency
= 25 yrs
Time to peak
Time interval
= 1 min
Hyd. volume
Drainage area
= 0.680 ac
Runoff coeff.
Intensity
= 8.209 in/hr
Tc by User
OF Curve
= Charlotte.IDF
Asc/Rec limb fact
* Composite (Area/C) = [(0.160 x 0.95) + (0.350 x 0.20)] / 0.680
Q (cfs)
3.00
1.00
0.00 v
0 1
Hyd No. 6
SWALE 3
Hyd. No. 6 -- 25 Year
10
Friday, 11 / 4 / 2016
= 2.233 cfs
= 5 min
= 670 tuft
= 0.4*
= 5.00 min
= 1/1
2 3 4 5 6 7 8 9
Q (cfs)
3.00
2.00
1.00
—'%- 0.00
10
Time (min)

Hydrograph
Report
11
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk,
Inc. 00.5
Friday, 11 / 4 / 2016
Hyd. No. 7
SWALE 1
Hydrograph type
= Rational
Peak discharge
= 1.761 cfs
Storm frequency
= 25 yrs
Time to peak
= 5 min
Time interval
= 1 min
Hyd. volume
= 528 cuft
Drainage area
= 0.330 ac
Runoff coeff.
= 0.65
Intensity
= 8.209 in/hr
Tc by User
= 5.00 min
OF Curve
= Charlotte.IDF
Asc/Rec limb fact
= 1/1
Q (cfs)
2.00
1.00
SWALE 1
Hyd. No. 7 -- 25 Year
0.00 r I I I I I I I I I
0 1 2 3 4 5 6 7 8 9
Hyd No. 7
Q (cfs)
2.00
1.00
311 0.00
10
Time (min)

Channel Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.
SWALE 1
Triangular
Side Slopes (z:1)
= 2.00, 3.00
Total Depth (ft)
= 2.00
Invert Elev (ft)
= 766.53
Slope (%)
= 1.11
N -Value
= 0.150
Calculations
Compute by:
Known Q
Known Q (cfs)
= 1.76
Elev (ft) Section
769.00
768.50
768.00
767.50
767.00
766.50
MINOR
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Crit Depth, Yc (ft)
Top Width (ft)
EGL (ft)
Friday, Nov 11 2016
= 1.05
= 1.760
= 2.76
= 0.64
= 5.67
= 0.50
= 5.25
= 1.06
Depth (ft)
2.47
1.97
1.47
0.97
0.47
-0.03
_n rq
0 1 2 3 4 5 6 7 8 9 10 11 12 vvv
Reach (ft)

Channel Report
Hydraflow Express Extension for Autodesk@ AutoCADO Civil 3DO by Autodesk, Inc.
SWALE 2
Triangular
Side Slopes (z:1)
= 2.00, 3.00
Total Depth (ft)
= 2.00
Invert Elev (ft)
= 768.66
Slope (%)
= 3.47
N -Value
= 0.150
Calculations
Compute by:
Known Q
Known Q (cfs)
= 11.47
Elev (ft) Section
771.00
770.50
770.00
769.50
769.00
768.50
Z:%IiN>■
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Crit Depth, Yc (ft)
Top Width (ft)
EGL (ft)
Friday, Nov 11 2016
= 1.71
= 11.47
= 7.31
= 1.57
= 9.23
= 1.06
= 8.55
= 1.75
1 1 2 3 4 5 6 7 8 9 10 11 12
Reach (ft)
Depth (ft)
2.34
1.84
1.34
go] BEI
0.34
-0.16
_n as

Channel Report
Hydraflow Express Extension for Autodesk@ AutoCADO Civil 3D@ by Autodesk, Inc.
SWALE 3
Triangular
Side Slopes (z:1)
= 2.00, 3.00
Total Depth (ft)
= 2.00
Invert Elev (ft)
= 792.97
Slope (%)
= 3.07
N -Value
= 0.150
Calculations
Compute by:
Known Q
Known Q (cfs)
= 2.23
Elev (ft) Section
795.00
794.50
794.00
793.50
793.00
792.50
Highlighted
Depth (ft)
Q (cfs)
Area (sqft)
Velocity (ft/s)
Wetted Perim (ft)
Crit Depth, Yc (ft)
Top Width (ft)
EGL (ft)
Friday, Nov 11 2016
= 0.95
= 2.230
= 2.26
= 0.99
= 5.13
= 0.55
= 4.75
= 0.97
Depth (ft)
2.03
1.53
1.03
0.53
0.03
-0.47
792.00 ' ' ' ' ' ' ' ' ' ' ' ' -0.97
0 1 2 3 4 5 6 7 8 9 10 11 12
Reach (ft)

Dewberry'
CULVERT
DRAINAGE AREAS
1/2
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----------------
Dewberry'
CULVERT
DRAINAGE AREAS
1/2

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