20101034 Ver 1_401 Application_20101210

2 0 1 0 1 0 3 4
EcoEngineering
A division of The John R. McAdams Company, Inc.
LETTER OF TRANSMITTAL
To: Mr. Ian McMillan , ate: D December 10, 2010
1( P; ZU10
401 Coordinator
NR - tAIATER QIYY,IIY
NC DWQ 401 Oversight Permitting Unit KT ANWAlrD
2321 Crabtree Boulevard, Suite 250 FEDERAL EXPRESS
Raleigh, North Carolina 27604
Job No.: PLT-10000
Re: Town Hall Commons -?
I am sending you the following item(s):
COPIES DATE NO. DESCRIPTION
5 signed a ent authorization
25 Figures 1,2, 3, 5A, 6, & 7 5 of each
10 2 full size & 3 1 1x17 of Figures 4&5
5 re-construction notification
5 USACE Final JD Plat
5 DWQ Neuse River Buffer determination
5 PCN Checklist
5 Stormwater Management Plan calc book & an set )
These are transmitted as checked below:
? As requested
® For approval
? For review and comment
Remarks:
\ ?t
? For your use
Copy to:
Signed: I_aI I( ,1/(a LL
'George Buchholz, REM,
Environmental Scientist
FOR INTERNAL USE ONLY
? Copy Letter of Transmittal Only to File
? Copy Entire Document to File

2905 Meridian Parkway, Durham, North Carolina 27713
PO Box 14005, RTP, North Carolina 27709
EcoEngineering
A division of The John R. McAdams Company, Inc.
December 10, 2010
Mr. Ian McMillan
401 Coordinator
NC DWQ - 401 Oversight Permitting Unit
2321 Crabtree Blvd., Suite 250
Raleigh, North Carolina 27604
Re: Neuse River Buffer Authorization
Town Hall Commons
Morrisville, North Carolina
PLT-10000
Dear Mr. McMillan:
2 0 1 0 1 0 3 4
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u`?r5Z0j??
sift
On behalf of Pulte Homes, we are applying for a Neuse River Riparian Buffer
Authorization for impacts to Zone 1 and Zone 2 of the Neuse River Buffers
associated with construction of stormwater wetlands within the proposed Town
Hall Commons development. More specifically, this permit request is for review
of grading, re-vegetation, and stabilization activities in Zone 2 of the Neuse River
Buffer associated with Stormwater Wetland Number 2 and the outlet pipe through
the entire Neuse River Buffer associated with Stormwater Wetland Number 4. The
proposed Town Hall Commons development is located at the terminus of stub
streets Hammond Wood Place, Justice Walk Avenue, and Newstead Way which are
south of McCrimmon Parkway within the Town of Morrisville, within the Neuse
River Basin of Wake County, North Carolina. Please find attached for your
review, the following items:
• Signed Agent Authorization
• Fig. I - USGS Quad - Raleigh West
• Fig.2- Wake County Soil Survey
• Fig.3- Vicinity Map
• Fig.4- Existing Conditions
• Fig.S- Impact Map (w. Figure 5A)
• Fig.6- Stream Discharge Profile Exhibit
• Fig.7- Future Newstead Way Extension
• Pre-Construction Notification
• USACE Final JD Plat (based on November 30, 2010 field meeting
,
USACE approval is forthcoming)
• DWQ Neuse River Buffer determination (NB/IPRRO# 10- 104)
• PCN Checklist
• Stomwater Management Plan
Research Triangle Park, NC
Post Office Box 14005
Research Triangle Park,
North Carolina 27709
2905 Meridian Parkway
Durham, North Carolina 27713
800-733-5646
919-287 4262
919-361-2269 Fax
www,ecoengr.com Design Services Focused On Client Success
[JEcoEngineering
A division of The John R. McAdams Company, Inc.
Mr. McMillan
Town Hall Commons
December 10, 2010
Page 2 of 6
WETLAND/STREAM MAPPING & PROJECT HISTORY: A Preliminary
USACE Jurisdictional Determination field meeting was conducted with Tyler
Crumbly (USACE representative, Raleigh District) on May 20, 2010. A Final
USACE Jurisdictional Determination field meeting was conducted with Jamie
Shern (USACE representative, Raleigh District) on November 30, 2010. All
jurisdictional streams and wetlands have been surveyed and are depicted on the
attached USACE Final JD Plat, which is based on the November 30, 2010 field
meeting (dated December 10, 2010, USACE approval is forthcoming). A DWQ
Neuse River Buffer and Ephemeral/Intermittent/Perennial determination was issued
on June 9, 2010, by Mr. Martin Richmond (NB/IPRRO# 10-104). Based on the
regulatory review conducted by both the USACE and NCDWQ, there are a total of
1206 square feet (0.03 ac) of jurisdictional wetlands located on the property. There
are 332 linear feet of Perennial Stream "A" and 97 linear feet of Intermittent
Stream "B". The property is located with the Neuse River Basin (HUC 03020201);
and therefore, Neuse River Buffers are applicable both Streams "A" and "B".
There are a total of 36,184 square feet of Neuse River Buffers located on the
property.
PROJECT LOCATION/HABITAT: The proposed Town Hall Commons
development is located in the northwest section of the Town of Morrisville, North
Carolina within the northwestern section of Wake County. The proposed
development is adjacent to the north of property owned by Twin Lakes Association
Incorporated which is adjacent to the north of Airport Boulevard. The proposed
development is located adjacent to the southeast of The Church of Latter Day
Saints property. Access to the proposed development can be achieved by accessing
Airport Boulevard, then turning north on Garden Square Lane, and then turning
west on Hammond Wood Place. The proposed development is located at the end of
Hammond Wood Place which is a stub road adjacent to east of the property
approximately 100 feet south of the unnamed tributary of Crabtree Creek. There
are two other stub roads which are immediately adjacent to the property. Justice
Walk Avenue is located adjacent to the east near the southern section of property
approximately 200 feet north of the unnamed tributary of Crabtree Creek.
Newstead Way is located adjacent to the west near the northern section of the
property.
Currently, the property is comprised of mesic mixed hardwood forests which have
been timbered in the past and as a result also contains loblolly pines, tulip poplar
and sweet gum tree species (see attached Figure 4). There is a 50 foot PSNC gas
line easement aligned northwest to southeast which bisects the properties. There is
also an unnamed tributary to Crabtree Creek aligned west to east which bisects the
southern section of the property. The properties which comprise the proposed
development are surrounded by residential developments located to the west, south,
and east. Located to the north of the proposed development is a church. Land use
PLT-10000
[JEcoEngheering
A division of The John R. McAdams Company, Inc.
Mr. McMillan
Town Hall Commons
December 10, 2010
Page 3 of 6
within the vicinity of the project is mix of multi-family, and single-family
residential, light commercial, and natural forested areas.
The unnamed tributary to Crabtree Creek is depicted on the USGS quad (see
attached Figure 1) and Wake County Soils Survey (see attached Figure 2); and
therefore, it is subject to the Neuse River Riparian Buffer Rules. Portions of the
riparian buffer have been cleared due to an existing 50 foot PSNC gas line
easement aligned northwest to southeast and which crosses the unnamed tributary
of Crabtree Creek.
PROPOSED PROJECT/IMPACTS: The Town Hall Commons project is a
residential development consisting of single family homes. Construction will also
include roads, sidewalks, utilities, amenities, stormwater management facilities and
other infrastructure associated with the development. Typical construction
equipment will be used such as a front end loader, bulldozer, and paving
equipment.
Final stormwater management plans/calculations will be reviewed/approved by the
Town of Morrisville. The proposed project is located within the Neuse River Basin
and is required to comply with the Neuse Stormwater Program which targets
nitrogen pollution runoff as specified in 15A NCAC 2B .0235. As such, there are
Neuse River Buffer impacts associated with the proposed construction of
Stormwater Wetland Numbers 2 and 4. This permit request is specifically for
review of the proposed Neuse River Buffer impacts associated with these
Stormwater Wetlands.
Stormwater Wetland Number 2: Stormwater Wetland Number, 2 has been designed
to receive runoff for pollutant removal associated with the proposed development
located in the southwestern section of Town Hall Commons just north of the
unnamed tributary to Crabtree Creek. Due to seasonal high groundwater elevation
requirements, Stormwater Wetland Number 2 was adjusted resulting in the earthen
dam structure encroaching and grading into Zone 2 of the Neuse River Buffer. As
a result, there will a temporary impact to the buffer. Grading activities are to be re-
vegetated and stabilized, and the existing vegetation within Zone 1 of the Neuse
River Buffer will not be compromised. This permit request is specifically for
review of grading, re-vegetation, and stabilization activities in Zone 2 of the Neuse
River Buffer associated with Stormwater Wetland Number 2.
IMPACT AREA "A": The proposed activity will temporarily impact a total of 141
of Zone 2 of the Neuse River Buffer (see attached Figure 5A).
Stormwater Wetland Number 4: Stormwater Wetland Number 4 has been designed
to receive runoff for pollutant removal associated with the proposed development
PLT-10000
EcoEngineering
A division of The John R. McAdams Company, Inc.
Mr. McMillan
Town Hall Commons
December 10, 2010
Page 4 of 6
located in the southern section of Town Hall Commons. Stormwater Wetland
Number 4 meets the requirements of 85% total suspended solids, 40% TN, and
40% TP removal. Stormwater wetlands which remove 30% nitrogen and 30%
phosphorus may discharge through the Neuse River Buffer with a buffer
authorization from the NCDWQ 401 program (NC DWQ BMP Manual, Chapter 8,
Chapter Revised March 9, 2010). The outlet pipe for Stormwater Wetland Number
4 has been designed to reduce the impacts to the receiving stream (unnamed
tributary to Crabtree Creek) by approaching the stream at an angle. In addition, the
stream bank landward of the stream jurisdictional limits will be protected with
riprap (NC DWQ BMP Manual, Chapter 8.3.3, Chapter Revised March 9, 2010).
This permit request is specifically for review of the outlet pipe through the Neuse
River Buffer.
IMPACT AREA "B": The outlet pipe for Stormwater Wetland 4 will be a 30"
reinforced concrete pipe and approach the unnamed tributary to Crabtree Creek at a
21 ° angle off perpendicular to the stream. The slopes above and around the
endwall and wingwalls of the outlet pipe will be lined with NCDOT class `B'
riprap to prevent erosion and scouring from occurring around the endwall and
wingwalls. A scour hole and velocity dissipator pad will also be provided
landward of the stream jurisdictional limits for added protection. As a result, there
are no proposed impacts to jurisdictional streams; however, there are Neuse River
Buffer impacts in the form of 742 square feet in Zone 1 and 483 square feet in Zone
2 (see attached Figure 5A).
TOTAL BUFFER IMPACTS:
Buffer Impact Type Zone 1 impact Zone 2 impact
(square eet) (square eet)
Impact Area "A"
(Grading/Re- 141
Vegetation)
Impact Area "B"

(Outlet Pipe) 742 483
TOTAL 742 624
AVOIDANCE and MINIMIZATION: Wetland, Stream, and Buffer impacts have
been avoided to the greatest extent practicable, while achieving a successful project.
There are no jurisdictional wetland or stream impacts associated with the proposed
project. Of the total 36,184 square feet of Neuse River Buffers on the project site,
only 742 square feet of Zone 1 and 624 square feet of Zone 2 are proposed to be
PLT-10000
EcoEngineering
A division of The John R. McAdams Company, Inc.
Mr. McMillan
Town Hall Commons
December 10, 2010
Page 5 of 6
impacted. To minimize impacts to the Neuse River Buffer, 141 square feet of Zone 2
impacts are proposed to be temporary.
Avoidance Measures:
Originally, the existing stub road, Hammond Wood Place located adjacent to the east
on the Gardens at Town Hall Commons development, was to be extended into the
Town Hall Commons development and aligned north so that the road crosses the
unnamed tributary to Crabtree Creek and thereby completely connecting the interior
road network of the development. However, this road alignment alternative was
eliminated to avoid impacts to the unnamed tributary to Crabtree Creek, resulting in
an incomplete connection of the interior road network. Instead, the existing stub road
Hammond Wood Place has been designed to extend into the southern section of the
property and end as a cul-de-sac within the property (see attached Figure 5).
Connection of the two stub roads Justice Walk Avenue (located adjacent to the east
on the Gardens at Town Hall Commons development) and Newstead Way (located to
the west on property owned by Twin Lakes Associated Incorporated) took into
consideration the extension of Newstead Way to the northeast off the Town Halll
Commons development. The alignment of Newstead Way has been designed so that
it can be extended approximately 340 feet off the property and intersects with Liberty
Rose Drive in such a way that it avoids impacts to wetlands, streams, and Neuse
River Buffers (see attached Figure 7).
Minimization Measures:
Bordering the proposed Town Hall Commons development to the east is an existing
residential development known as The Gardens at Town Hall Commons. Constructed
as part of the development to meet local/state water quantity/quality requirements
were stormwater wetlands facilities. Proposed as part of the Town Hall Commons
development is the removal of the existing stormwater wetland (located immediately
adjacent to the east of the Town Hall Commons development) within the Gardens at
Town Hall Commons development and the construction of a new stormwater
wetland facility that will be designed to provide water quantity and quality for the
receiving drainage area from both developments. To avoid creating a new discharge
point into the Neuse River Buffer and to the unnamed tributary to Crabtree Creek, the
proposed outlet pipe from Stormwater Wetland Numbers 2 and 3 will combine and
overlap with the existing Gardens at Town Hall Commons wetland outlet pipe
location.
DIFFUSE FLOW: To address diffuse flow requirements, stormwater wetlands are
proposed for water quality treatment which are credited with removing 85% total
suspended solids, 40% TN, and 40% TP. According to Chapter 8 - "Level Spreader
PLT-10000
EcoEngineering
A division of The John R. McAdams Company, Inc.
Mr. McMillan
Town Hall Commons
December 10, 2010
Page 6 of 6
and Vegetative Filter Strip" of the NC DWQ BMP Manual, instead of the use of
diffuse flow systems, BMPs which remove at least 30% TN and 30% TP may utilize
an outflow pipe which discharges through the buffer directly into the stream channel
with a buffer authorization from the DWQ 401 program. As such, Stormwater
Wetland Number 4 has been designed to have an outflow pipe which discharge
through the buffer and directly into the unnamed tributary to Crabtree Creek.
STORMWATER MANAGEMENT: The proposed development is
approximately 34.3% impervious surface and located within the Neuse River basin
and will be subject to the stormwater management requirements set forth by the NC
DWQ and the Town of Morrisville. Final stormwater management
plans/calculations will be reviewed/approved by the Town of Morrisville.
MITIGATION: All buffer impacts associated with Impact Area "A"
(Grading/Re-Vegetation) are deemed "Exempt" under the Neuse River Riparian
Buffer Rules - Table of Uses; therefore, no mitigation is required. All buffer
impacts associated with Impact Area "B" (Outlet Pipe) are deemed "Allowable"
under the Neuse River Riparian Buffer Rules - Table of Uses; therefore, no
mitigation is required.
Consideration of this project is greatly appreciated. In summary, we are requesting
a Neuse River Buffer Authorization to impact a total of 742 square feet within
Zone 1 and 624 square feet within Zone 2 associated with the construction of
Stormwater Wetland Numbers 2 and 4 for the proposed Town Hall Commons
development. If you should have any questions or require additional information,
please do not hesitate to contact me at [phone].
Sincerely,
EcoEngineering
LAdivision of . McAdams Company, Inc.
George Buchholz, REM, PWS
Environmental Scientist
Enclosures
PLT-10000
Since 1979
THE JOHN R. McADAMS COMPANY INC.
AGENT AUTHORIZATION FORM
All Blanks To Be Filled In By The CurrentProperty Owner
Name: f 7'u4 -q i /-J WA-tb it, r l= 7" sw_,v
Address: /// 6 r,Z uz,e -o4 ' zs c-f- , 2 4 <<r/ 6 ?h/ i/ C 27 6 i(/ ----
Phone: RV6 - / ).P,6
Project Name/Description: Town Hall Commons
Project Number: PLT-10000 Proiect A
vision
e Buchholz
Date: November 10, 2010
U.S. Army Corps of Engineers
Attn: Jamie Shern
Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
Re: Wetlands Related Consulting and Permitting
To Whom It May Concern:
1, the current property owner, hereby designate and authorize The John R. McAdams Company,
Inc- to act in my behalf as my agent in the processing of permit applications, to furnish upon
requ"I supplemental information in support of applications, etc. from this day forward. The
1.Zf < day of o t/.
This notification supersedes any previous correspondence concerning the agent for this project.
NOTICE: This authorization, for liability and professional courtesy reasons, is valid only
for government officials to enter the property when accompanied by The John R.
McAdams Company, Inc. staff. You should call The John R. McAdams Company, Inc. to
arrange a site meeting prior to visiting the site.
Print Property Owner ignature -
Cc: Ms. Cyndi Karoly
NCDENR-D WQ
2321 Crabtree Boulevard
Raleigh, NC 27604
C I V I L E N G I N E E R I N G • L A N D P L A N N I N G • S U R V E Y I N G
PO Box 14005 • Research Triangle Park, NC 27709 • [phone] • fax [phone]
www.johnrmcadams.com
2 0 1 0 1 0 3 4
OF W AT

Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Pre-Construction Notification PCN Form
A. Applicant Information
1. Processing
1 a. Type(s) of approval sought from the
Corps:
E] Section 404 Permit El Section 10 Permit
1 b. Specify Nationwide Permit (NWP) number: or General Permit (GP) number:
1c. Has the NWP or GP number been verified by the Corps? ? Yes ? No
1 d. Type(s) of approval sought from the DWQ (check all that apply):
? 401 Water Quality Certification - Regular ? Non-404 Jurisdictional General Permit
? 401 Water Quality Certification - Express ® 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 ? No For the record only for Corps Permit:

® Yes ? 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 ® No
1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h
below. ? Yes ® No
1h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ® No
2. Project Information
2a. Name of project: Town Hall Commons
2b. County: Wake
l

2c.
Nearest municipality / town: u V
Morrisville
2d. Subdivision name: DOEC 201o
2e. NCDOT only, T.I.P. or state
project no:
IIYET1Alp$pp$1Gj?p
3. Owner Information
3a. Name(s) on Recorded Deed: Stuart Edward White/ Town Hall Commons, LLC
3b. Deed Book and Page No. Deed Book 11146 / Page No. 0700 (Pin # 0745583767), Deed Book 09970/ Page No.
1319 (Pin # 0745591158), Deed Book 09970/ Page No. 1319 (Pin # 0745499493)
3c. Responsible Party (for LLC if
applicable): Town Hall Commons LLC
3d. Street address: 1116 Silver Oaks Court
3e. City, state, zip: Raleigh, NC 27614
3f. Telephone no.: [phone]
3g. Fax no.:
3h. Email address:
Page 1 of 15
PCN Form -Version 1.3 December 10, 2008 Version
4. Applicant Information (if different from owner)
4a. Applicant is: Pulte Homes
4b. Name: Randy King
4c. Business name
(if applicable):
4d. Street address: 1225 Crescent Green Drive, Suite 250
4e. City, state, zip: Cary, North Carolina 27518
4f. Telephone no.: [phone]
4g. Fax no.:
4h. Email address: randv.king,(a)pulte.com
5. Agent/Consultant Information (if applicable)
5a. Name: George Buchholz
5b. Business name
(if applicable): EcoEngineering, A division of The John R. McAdams Company
5c. Street address: 2905 Meridian Parkway
5d. City, state, zip: Durham, NC, 27713
5e. Telephone no.: 919-287-4262
5f. Fax no.: 919-361-2269
5g. Email address: buchholz(cDecoen4r.com
Page 2 of 15
PCN Form - Version 1.3 December 10, 2008 Version
B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID): 0745583767, 0745591158, 0745499493

1 b. Site coordinates (in decimal degrees): Latitude: 35.8340402
Longitude: - 78.8472567
(DD.DDDDDD) (-DD.DDDDDD)
1 c. Property size: 12.83 acres
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to
proposed project: Unnamed Tributary to Crabtree Creek
2b. Water Quality Classification of nearest receiving water: C, NSW; Stream Index # 27-33-(1)
2c. River basin: Neuse River Basin 03020201
Page 3 of 15
PCN Form - Version 1.3 December 10, 2008 Version
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 proposed Town Hall Commons development is located in the northwest section of the Town of Morrisville, North
Carolina within the northwestern section of Wake County. The proposed development is adjacent to the north of property
owned by Twin Lakes Association Incorporated which is adjacent to the north of Airport Boulevard. The proposed
development is located adjacent to the southeast of The Church of Latter Day Saints property. Access to the proposed
development can be achieved by accessing Airport Boulevard, then turning north on Garden Square Lane, and then
turning west on Hammond Wood Place. The proposed development is located at the end of Hammond Wood Place
which is a stub road adjacent to east of the property approximately 100 feet south of the unnamed tributary of Crabtree
Creek. There are two other stub roads which are immediately adjacent to the property. Justice Walk Avenue is located
adjacent to the east near the southern section of property approximately 200 feet north of the unnamed tributary of
Crabtree Creek. Newstead Way is located adjacent to the west near the northern section of the property.
Currently, the property is comprised of mesic mixed hardwood forests which have been timbered in the past and as a
result also contains loblolly pines, tulip poplar and sweet gum tree species (see attached Figure 4). There is a 50 foot
PSNC gas line easement aligned northwest to southeast which bisects the properties. There is also an unnamed
tributary to Crabtree Creek aligned west to east which bisects the southern section of the property. The properties which
comprise the proposed development are surrounded by residential developments located to the west, south, and east.
Located to the north of the proposed development is a church.
3b. List the total estimated acreage of all existing wetlands on the property:
1206 sq. ft. (0.03ac)
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
429 linear feet
3d. Explain the purpose of the proposed project:
The purpose of the proposed project is to construct a residential subdivision known as Town Hall Commons.
Page 4 of 15
PCN Form - Version 1.3 December 10, 2008 Version
3e. Describe the overall project in detail, including the type of equipment to be used:
The Town Hall Commons project is a residential development consisting of single family homes. Construction will also
include roads, sidewalks, utilities, amenities, stormwater management facilities and other infrastructure associated with
the development. Typical construction equipment will be used such as a front end loader, bulldozer, and paving
equipment.
Final stormwater management plans/calculations will be reviewed/approved by the Town of Morrisville. The proposed
project is located within the Neuse River Basin and is required to comply with the Neuse Stormwater Program which
targets nitrogen pollution runoff as specified in 15A NCAC 2B .0235. As such, there are Neuse River Buffer impacts
associated with the proposed construction of Stormwater Wetland Numbers 2 and 4. This permit request is specifically
for review of the proposed Neuse River Buffer impacts associated with these Stormwater Wetlands.
Stormwater Wetland Number 2: Stormwater Wetland Number 2 has been designed to receive runoff for pollutant removal
associated with the proposed development located in the southwestern section of Town Hall Commons just north of the
unnamed tributary to Crabtree Creek. Due to seasonal high groundwater elevation requirements, Stormwater Wetland
Number 2 was adjusted resulting in the earthen dam structure encroaching and grading into Zone 2 of the Neuse River
Buffer. As a result, there will a temporary impact to the buffer. Grading activities are to be re-vegetated and stabilized,
and the existing vegetation within Zone 1 of the Neuse River Buffer will not be compromised. This permit request is
specifically for review of grading, re-vegetation, and stabilization activities in Zone 2 of the Neuse River Buffer associated
with Stormwater Wetland Number 2.
IMPACT AREA "A": The proposed activity will temporarily impact a total of 141 square feet of Zone 2 of the Neuse River
Buffer (see attached Figure 5A).
Stormwater Wetland Number 4: Stormwater Wetland Number 4 has been designed to receive runoff for pollutant removal
associated with the proposed development located in the southern section of Townhall Hall Commons. Stormwater
Wetland Number 4 meets the requirements of 85% total suspended solids, 40% TN, and 40% TP removal. Stormwater
wetlands which remove 30% nitrogen and 30% phosphorus may discharge through the Neuse River Buffer with a buffer
authorization from the NCDWQ 401 program (NC DWQ BMP Manual, Chapter 8, Chapter Revised March 9, 2010). The
outlet pipe for Stormwater Wetland Number 4 has been designed to reduce the impacts to the receiving stream (unnamed
tributary to Crabtree Creek) by approaching the stream at an angle. In addition, the stream bank landward of the stream
jurisdictional limits will be protected with riprap (NC DWQ BMP Manual, Chapter 8.3.3, Chapter Revised March 9, 2010).
This permit request is specifically for review of the outlet pipe through the Neuse River Buffer.
IMPACT AREA "B": The outlet pipe for Stormwater Wetland 4 will be a 30" reinforced concrete pipe and approach the
unnamed tributary to Crabtree Creek at a 21 ° angle off perpendicular to the stream. The slopes above and around the
endwall and wingwalls of the outlet pipe will be lined with NCDOT class 'B' riprap to prevent erosion and scouring from
occurring around the endwall and wingwalls. A scour hole and velocity dissipator pad will also be provided landward of
the stream jurisdictional limits for added protection. As a result, there are no proposed impacts to jurisdictional streams;
however, there are Neuse River Buffer impacts in the form of 742 square feet in Zone 1 and 483 square feet in Zone 2
(see attached Figure 5A).
Page 5 of 15
PCN Form - Version 1.3 December 10, 2008 Version
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property / ® Yes ? No ? Unknown
project (including all prior phases) in the past?
Comments:
4b. If the Corps made the jurisdictional determination, what type ? Preliminary ® Final
of determination was made?
4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company: EcoEngineering, A division
of John R. McAdams Company
Name (if known): George Buchholz Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
• USACE representative Tyler Crumbley field confirmed the preliminary jurisdictional determination on May 20, 2010.
• USACE representative Jamie Shern field confirmed the final jurisdictional determination on November 30, 2010. The
results of the November 30, 2010 field meeting are shown on the attached USACE Final JD Plat (USACE approval is
forthcoming)
• NCDWQ representative Martin Richmond field confirmed on May 26, 2010 and provided a Neuse River Buffer and
E hemeral/Intermittent/Perennial determination on June 9, 2010 NB/IPRRO# 10-104
5. Project History
5a. Have permits or certifications been requested or obtained for ? Yes ® No ? Unknown
this project (including all prior phases) in the past?
5b. If yes, explain in detail according to "help file" instructions.
6. Future Project Plans
6a. Is this a phased project? ? Yes ® No
6b. If yes, explain.
Page 6 of 15
PCN Form - Version 1.3 December 10, 2008 Version
C. Proposed Impacts Inventory
1. Impacts Summary
1a. Which sections were completed below for your project (check all that apply):
? Wetlands ? Streams - tributaries ® 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. 2b. 2c. 2d. 2e. 2f.
Wetland impact Type of jurisdiction
number - Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact
Permanent (P) or (if known) DWQ - non-404, other) (acres)
Temporary T
W1 ? P ? T ? Yes ? Corps
? No ? DWQ
W2 ? P ? T ? Yes ? Corps
? No ? DWQ
W3 ? P ? T ? Yes ? Corps
? No ? DWQ
W4 ? P ? T ? Yes ? Corps
? No ? DWQ
W5 ?P?T ?Yes ?Corps
? No ? DWQ
W6 ? P ? T ? Yes ? Corps
? No ? DWQ
2g. Total wetland impacts
2h. Comments: As confirmed during an on-site field meeting with the USACE conducted on November 30, 2010, there are
1206 square feet (0.03 ac) of jurisdictional wetlands located on the property. Impacts to jurisdictional wetlands have been
avoided b the proposed project.
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. 3b. 3c. 3d. 3e. 3f. 3g.
Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact
number - (PER) or (Corps - 404, 10 stream length
Permanent (P) or intermittent DWQ - non-404, width (linear
Temporary (T) (INT)? other) (feet) feet)
S1 ? P ? T ? PER ? Corps
? INT ? DWQ
S2 ? P ? T ? PER ? Corps
? INT ? DWQ
S3 ? P ? T ? PER ? Corps
? INT ? DWQ
S4 ? P ? T ? PER ? Corps
? INT ? DWQ
S5 ? P ? T ? PER ? Corps
? INT ? DWQ
S6 ? P ? T ? PER ? Corps
? INT ? DWQ
3h. Total stream and tributary impacts
3i. Comments: As confirmed during regulatory field meetings with the USACE on May 20 and November 30 , 2010, and with
the NCDWQ on May 26, 2010, there are two jurisdictional streams which are unnamed tributaries to Crabtree Creek located
on the property. In accordance with the NC DWQ BMP Manual Section 8.3.3 (March, 2010, Chapter Revised March 9, 2010),
Page 7 of 15
PCN Form - Version 1.3 December 10, 2008 Version
an outlet pipe from Stormwater Wetland Number 4 will be graded up to the unnamed tributary to Crabtree Creek (see attached
Figures 5A and 6). The outlet pipe will not impact the jurisdictional limits of the unnamed tributary to Crabtree Creek; and
therefore, the jurisdictional integrity of the stream will remain.
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 individually list all open water impacts below.
4a. 4b. 4c. 4d. 4e.
Open water Name of waterbody
impact number (if applicable) Type of impact Waterbody type Area of impact (acres)
- Permanent
(P) or
Temporary T
01 ?P?T
02 ?P?T
03 ?P?T
04 ?P?T
4f. Total open water impacts
4g. Comments:
5. Pond or Lake Construction
If and or lake construction proposed, then com lete the chart below.
5a. 5b. 5c. 5d. 5e.
Wetland Impacts (acres) Stream Impacts (feet) Upland
Pond ID Proposed use or purpose of (acres)
number pond
Flooded Filled Excavated Flooded Filled Excavated Flooded
P1
P2
5f. Total
5g. Comments:
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:
Page 8 of 15
PCN Form - Version 1.3 December 10, 2008 Version
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 an impacts require mitigation, then you MUST fill out Section D of this form.
6a.
? Neuse ? Tar-Pamlico ? Other:
Project is in which protected basin? ? Catawba ? Randleman
6b. 6c. 6d. 6e. 6f. 6g.
Buffer impact
number - Reason for Buffer Zone 1 impact Zone 2 impact
Permanent (P) impact Stream name mitigation (square feet) (square feet)
or Temporary required?
T
INSET 1
IMPACT AREA
"
" Grading/Re-
UT to Crabtree Creek ? Yes
141
A Vegetation ® No
131 ?P®T
INSET 1
IMPACT AREA
„B„ Outlet Pipe UT to Crabtree Creek ® Nos 742 483
B2 ®P?T
B3 ?P?T ?Yes
? No
6h. Total buffer impacts 742 624
6i. Comments: All buffer impacts associated with Impact Area "A" (Grading/Re-Vegetation) are deemed "Exempt" under the
Neuse River Riparian Buffer Rules - Table of Uses and no mitigation is required. All buffer impacts associated with Impact
Area "B" (Outlet Pipe) are deemed "Allowable" under the Neuse River Riparian Buffer Rules - Table of Uses and no mitigation
is required.
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Wetland, Stream and Neuse River Buffer impacts have been avoided and/or minimized to the greatest extent practicable,
while achieving a successful project. There are no jurisdictional wetland or stream impacts associated with the proposed
project. Of the total 36,184 square feet of Neuse River Buffers on the project site, only 742 square feet of Zone 1 and 624
square feet of Zone 2 are proposed to be impacted. To minimize impacts to the Neuse River Buffer, 141 square feet of Zone
2 impacts are proposed to be temporary.
Avoidance Measures:
Originally, the existing stub road, Hammond Wood Place located adjacent to the east on the Gardens at Townhall Commons
development, was to be extended into the Town Hall Commons development and aligned north so that the road crosses the
unnamed tributary to Crabtree Creek and thereby completely connecting the interior road network of the development.
However, this road alignment alternative was eliminated to avoid impacts to the unnamed tributary to Crabtree Creek,
resulting in an incomplete connection of the interior road network. Instead, the existing stub road Hammond Wood Place has
been designed to extend into the southern section of the property and end as a cul-de-sac within the property (see attached
Figure 5).
Connection of the two stub roads Justice Walk Avenue (located adjacent to the east on the Gardens at Townhall Commons
development) and Newstead Way (located to the west on property owned by Twin Lakes Assocaited Incorporated) took into
consideration the extension of Newstead Way to the northeast off the Townhall Commons development. The alignment of
Newstead Way has been designed so that it can be extended approximately 340 feet off the property and intersects with
Liberty Rose Drive in such a way that it avoids impacts to wetlands, streams, and Neuse River Buffers (see attached Figure
7).
Minimization Measures:
Bordering the proposed Town Hall Commons development to the east is an existing residential development known as The
Page 9 of 15
PCN Form - Version 1.3 December 10, 2008 Version
Gardens at Townhall Commons. Constructed as part of the development to meet local/state water quantity/quality
requirements were stormwater wetlands facilities. Proposed as part of the Town Hall Commons development is the removal
of the existing stormwater wetland (located immediately adjacent to the east of the Town Hall Commons development) within
the Gardens at Townhall Commons development and the construction of a new stormwater wetland facility that will be
designed to provide water quantity and quality for the receiving drainage area from both developments. To avoid creating a
new, discharge point into the Neuse River Buffer and to the unnamed tributary to Crabtree Creek, the proposed outlet pipe
from Stormwater Wetland Numbers 2 and 3 will combine and overlap with the existing Gardens at Townhall Commons
wetland outlet pipe location.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Proper sedimentation and erosion control methods will be utilized during all phases of construction and installation as
described in the Erosion Control Plan sheet reviewed and approved by the NC Division of Land Quality and the Town of
Morrisville. All work will take place during dry conditions and can be facilitated from high, non jurisdictional, stable ground
adjacent to the Neuse Buffer. The contractor shall install silt fence, inlet protection, sediment traps, diversion ditches, tree
protection, clearing only as necessary to install these devices. All erosion and sediment control measures will be checked for
stability and operation following every runoff producing rainfall, but in no case less than once every week. Any needed repairs
will be made immediately to maintain all measures designed. An erosion control inspections report is required and will be kept
b the owner's representative.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for ? Yes ® No
impacts to Waters of the U.S. or Waters of the State?
2b. If yes, mitigation is required by (check all that apply): ? DWQ ? Corps
? Mitigation bank
2c. If yes, which mitigation option will be used for this project? ? 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 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: ? warm ? cool ?cold
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 10 of 15
PCN Form - Version 1.3 December 10, 2008 Version
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
buffer mitigation? ? Yes ® No
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.

Zone 6c.
Reason for impact 6d.
Total impact
(square feet)
Multiplier 6e.
Required mitigation
(square feet)
Zone 1 3 (2 for Catawba)
Zone 2 1.5
6f. Total buffer mitigation required:
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: The proposed activity is an allowable use
Page 11 of 15
PCN Form - Version 1.3 December 10, 2008 Version
E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1 a. 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.
Comments: To address diffuse flow requirements, stormwater wetlands are
proposed for water quality treatment which are credited with removing 85% total
suspended solids, 40% TN, and 40% TP. According to Chapter 8 - "Level Spreader
and Vegetative Filter Strip" of the NC DWQ BMP Manual, instead of the use of diffuse ® Yes ? No
flow systems, BMPs which remove at least 30% TN and 30% TP may utilize an outflow
pipe which discharges through the buffer directly into the stream channel with a buffer
authorization from the DWQ 401 program. As such, Stormwater Wetland Number 4 has
been designed to have an outflow pipe which discharge through the buffer and directly
into the unnamed tributary to Crabtree Creek.
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project? 34.3%
2b. Does this project require a Stormwater Management Plan? ® 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:
® Certified Local Government
2e. Who will be responsible for the review of the Stormwater Management Plan? ? DWQ Stormwater Program
? DWQ 401 Unit
3. Certified Local Government Stormwater Review
3a. In which local government's jurisdiction is this project? Town of Morrisville
? Phase II
3b. Which of the following locally-implemented stormwater management programs ® NSW
apply (check all that apply): ? USMP
? Water Supply Watershed
? Other:
3c. Has the approved Stormwater Management Plan with proof of approval been ? Yes ® No
attached? A copy of the plan has been submitted, but has not yet been approved by
the Town of Morrisville.
4. DWQ Stormwater Program Review
? Coastal counties
4a. Which of the following state-implemented stormwater management programs apply ? HQW
? ORW
(check all that apply):
® Session Law 2006-246
? Other:
4b. Has the approved Stormwater Management Plan with proof of approval been
attached? A copy of the plan has been submitted, but has not yet been approved by ? Yes ® No
the Town of Morrisville.
Page 12 of 15
PCN Form - Version 1.3 December 10, 2008 Version
5. DWQ 401 Unit Stormwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements? ® Yes ? No
5b. Have all of the 401 Unit submittal requirements been met? ® Yes ? No
F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1 a. Does the project involve an expenditure of public (federal/state/local) funds or the ? 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 ? No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1 c. 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 ? 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, ? Yes ® No
or Riparian Buffer Rules (15A NCAC 213 .0200)?
2b. Is this an after-the-fact permit application? ? Yes ® 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 ? Yes ® 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.
The proposed Town Hall Commons development is surrounded by existing residential and institutional developments.
Connection of the two stub roads Justice Walk Avenue and Newstead Way has taken into consideration the extension of
Newstead Way to the northeast off the property. The alignment of Newstead Way has been designed so that it can be
extended approximately 340 feet off the property and intersects with Liberty Rose Drive in such a way that it avoids
impacts to wetlands, streams, and Neuse River Buffers see attached Figure 7).
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.
Wastewater generated from the proposed project will be collected into a public sanitary sewer and ultimately to a
wastewater treatments stem.
Page 13 of 15
PCN Form - Version 1.3 December 10, 2008 Version
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 ® No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act ? Yes ® No
impacts?
F1 Raleigh
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?
The U.S. Fish and Wildlife Serive web site (http://www.fws.gov/nc-es/es/countyfr.htmi) was accessed on November 11,
2010 to determine threatened and endangered species which may potential occur within Wake County. Based on field
surveys coducted within the project area, it is believed threatened and endagered species and their habitat are not
present.
The North Carolina Natural Heritage Protection Virtual Workroom internet service (accessed November 11, 2010) does
not lists any federally protected species within a 2 mile radius of the project area.
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat? ? Yes ® No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
The North Carolina Natural Heritage Protection Virtual Workroom internet service (accessed November 11, 2010) does
not lists any federally protected species within a 2 mile radius of the project area.
The Clean Water Management Trust Fund we site (http://216.237.216.18/cwmtfweb/default.aspx) was accessed on
November 11, 2010 to determine whether the proposed project would impact Essential Fish Habitat (EFH) and it was
determined that EFH is not present within the proposed project study area.
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 ® 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?
A review of the list of properties and districts in North Carolina entered in the National Register of Historic Places
(http://www.hpo.ncdcr.gov/nrlist.htm) for Wake County did not reveal any listing within the proposed project study area. It
is believed the proposed project will not occur in or near an area that has been designated as having historic or cultural
reservation status b the state, federal, or tribal governments.
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain? ? Yes ® No
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination? The North Carolina Flood Insurance Rate Map (Map #
3720074500J; Effective Date May 2, 2006) was reviewed and it was determined that there are no 100-year floodplain and
floodwa areas with the proposed residential development.

L Date
Page 14 of 15 C/
PCN Form - Version 1.3 December 10, 2008 Version
NC R
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Govemor Director Secretary
June 9, 2010
George Buchholz
EcoEngineering
2905 Meridian Parkway
Durham, NC 27713
N B/IPRR©# 10-104
Wake County
BASIN
® Neuse 0 5A NCAC 28.0233) ? Tar-Pamlico 0 5A NCAC 28.0259)
® Ephemeral/IntermittenUPerennial Determination ? Isolated Wetland Determination
Project Name:
Morrisville Town Commons
Location: Directions: Subject properties are two undeveloped lots, adjacent to and proposed
expansion of the existing Morrisville Town Commons
Subject Stream: UT to Crabtree Creek
Date of Determination: May 26, 2010
Feature E/l/P* Not
Su_bieect Subject Start al StOPO' Stream
Form Pts. Soil
Survey USGS
Togo
A P X Throughout _ X X
B I X Throu out X X
Pond I X X X
*E I P = Ephemeral lntermitteni,'Perenniu!
Explanation: The feature(s) listed above has or have been located on the Soil Survey of Wake County, North
Carolina or the most recent copy of the USGS Topographic map at a 1:24,000 scale. Each feature that is checked
"Not Subject" has been detennined not to be a stream or is not present on the property. Features that are checked
'Subject" have been located on the property and possess characteristics that qualify it to be a stream. There may be
other streams located on your property that do not show up on the maps referenced above but, still may be
considered jurisdictional according to the US Army Corps of Engineers and/or to the Division of Water Quality.
This on-site determination shall expire five (S) years from the date of this letter. Landowners or affected parties that
dispute a determination made by the DWQ or Delegated Local Authority may request a determination by the
Director. An appeal request must be made within sixty (60) days of date of this letter or from the date the affected
party (including downstream and/or adjacent owners) is notified of this letter. A request for a determination by the
Director shall be referred to the Director in writing c/o [an McMillan, DWQ Wetlands/401 Unit, 2321 Crabtree Blvd,,
Raleigh, NC 276042260.
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An Equal Opportunity/Affirmative Action Empbyer - 50% Recycledfl0% Post Consumer Paper
Morrisville Town Commons
Wake County
June 9. 2010
Page 2of2
If you dispute the Director's determination you may file a petition for an administrative hearing. You must file the
petition with the Office of Administrative Hearings within sixty (60) days of the receipt of this notice of decision. A
petition is considered filed when it is received in the Office of Administrative Hearings during normal office hours.
The Office of Administrative Hearings accepts filings Monday through Friday between the hours of 8:00 am and 3:00
pm, except for official state holidays. To request a hearing, send the original and one (1) copy of the petition to the
Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. The petition may also be
faxed to the attention of the Office of Administrative Hearings at [phone], provided the original and one (1)
copy of the document is received by the Office of Administrative Hearings within rive (S) days following the date of
the fax transmission. A copy of the petition must also be served to the Department of Natural Resources, c/o Mary
Penny Thompson, General Counsel, 1601 Mail Service Center, Raleigh, NC 27699-1601.
This determination is final and binding unless, as detailed above, you ask for a hearing or appeal within sixty (60)
days.
The owner/future owners should notify the Division of Water Quality (including any other Local, State, and Federal
Agencies) of this decision concerning any future correspondences regarding the subject property (stated above). This
project may require a Section 4041401 Permit for the proposed activity. Any inquiries should be directed to the
Division of Water Quality (Central Office) at (919)-733-1786, and the US Army Corp of Engineers (Raleigh
Regulatory Field Office) at (919)-876-8441.
Respectfully,
Martin Ri and
Environm ntal Specialist
cc: Wetlands' Stormwater Branch, 2321 Crabtree Blvd, Suite 250, Raleigh. NC 27604
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Version 1.4
January 9, 2009
401 Oversight/Express Permitting PCN Submittal Checklist
? The application fee (Checks may be made out to "N.C. Division of Water Quality" Not
Applicable
- $240.00 for 401 Water Quality Certification with minor impacts
- $570.00 for 401 Water Quality Certification with major impacts
Express Review Fee (Amount requested on Acceptance Letter)
® Five (5) complete and collated copies of the PCN Application and supporting
documentation (instead of providing 5 copies of the full size plans you may provide two
copies of full size plans along with three copies of 11 X 17 plans)
® Stormwater Management Plan (if applicable - see PCN Form Help File Section E)
1) Please provide one (1) copy of the stormwater management plans
along with all supporting information pertaining to this project including the following:
a. Entire site development/layout plans delineating all drainage areas;
b. Design calculation sheets for all proposed BMPs) sized for both on-site and
off-site drainage;
c. BMP supplements for each proposed BMP and Required Items Check List
(http://h2o.enr.state.nc.us/su/bmp forms.htm) along with all required
items;
e. Detailed construction drawing sheets shall include
(i) Erosion and sediment control plans;
(ii) Installation and planting schedules for the proposed BMPs;
(iii) Appropriately scaled plan views and cross sectional details of all
BMPs and associated components - inlet and outlet structures,
forebay, respective zones and pertinent elevations.
® If your project is located within a State implemented Riparian Buffer Rule Area, submit the
following along with site plans and PCN form:
1) Three (3) copies of the details for on-site diffuse flow provisions, (refer to
http://h2o.enr.state.nc.us/su/bmp_forms.htm).
® DWQ determination
letter for wetlands or streams (if applicable).
The following is the most critical of all the information that you must provide. The quality and
detail of the information will often determine the expeditiousness of the review. The following is
a checklist of the types of pertinent information required at a minimum:
Maps and Plans:
® The most recent version of the 1:24,000 USGS Topographic Map - Please cleanly draw or
delineate the site boundaries on the topographic map.
® The most recent version of the bound and published County NRCS Soil Survey Map -
(required for projects within the Neuse River Basin, Tar-Pamlico River Basin, Randleman
Lake Watershed and the Catawba River Basin, also recommended for all projects) -
Please clearly delineate the site boundaries, etc. on the map. If the delineation obscures
Version 1.4
January 9, 2009
any of the features, it is recommended that a clean copy be provided. Copies of the
current soil survey and/or soil survey map sheets can be obtained from the local NRCS
County Office (http://www.nc.nres.usda.gov/). GIS soil layers are not acceptable.
® Vicinity map - Please clearly mark the location and approximate boundaries of the property
and project on the map. Please indicate north arrow and scale. Please include applicable
road names or State Road numbers.
® The Site Plan - The most critical map to be provided is the site plan. You must provide full
sized plans. The following is the minimum list of plans that are typically needed.
® Pre-construction/Pre-existing conditions - This sheet (or sheets) must include:
• All jurisdictional and non-jurisdictional wetland, stream, water features, State regulated
buffers (delineated into Zones 1 and 2)
• Topographic contours with elevations
• Any existing structures and impervious areas
• Existing utility lines and easements
• Existing roads, culverts, and other pertinent features
• North arrow and the scale (1":50' scale is recommended).
® Proposed conditions - This sheet (or sheets) must include:
• All jurisdictional and non-jurisdictional wetland, stream, water features, State regulated
buffers (delineated into Zones 1 and 2)
• Lot layout (if a subdivision or commercial development is proposed) - lots must be
developable without further impacts to jurisdictional and non-jurisdictional wetlands,
streams, water features, and State regulated buffers. Building envelopes must be
provided when streams, wetlands, riparian buffers, or water features exist on a lot
• All built-out structures and impervious cover
• Final grading contours with elevations
• All utilities and easements (including septic fields on all lots within 100 feet of stream,
wetland, or water features - if applicable)
• Impacted areas - these should correspond with the Impact numbers listed on your PCN
form.
® Drainage Plans - Final drainage plans must include the following:
• Locations and pertinent elevations and sizes of the stormwater collection system and
drainage ways
• All inlets and outlets must also be shown with pertinent elevations (All outlets to
wetlands must be at a non-erosive velocity, generally less than 2 ft/sec during the peak
flow from the 10-vr storm)
• Scaled stormwater BMPs must also be indicated as required by DWQ rules and policies
• In certain cases (see Section E of PCN form), final stormwater management plans must
also be provided (see Stormwater Management Plan Checklist)
® Proposed Impacts - All impacts to jurisdictional and non-jurisdictional wetland, stream,
water features, and State regulated buffers must be shown and labeled on the site plans at
a scale no smaller than 1" = 50'. All excavation, fill, flooding, stabilization, and other impacts
that will be conducted in or near jurisdictional and non-jurisdictional wetland, stream, water
features, and State regulated buffers must be indicated. Please provide cross sectional
Version 1.4
January 9, 2009
details showing the provisions for aquatic life passage (burial of culvert 20% for culverts s: 48
inches, and 1-foot for culverts > 48 inches).
Wetland Impacts: Not Applicable
? Precise grading and final elevation contours must be provided. Existing
vegetation and any clearing must be specified.
? All subsurface utility lines must indicate the location of anti-seep collars.
Construction detail for anti-seep collars must be provided.
? Roadway or other crossings of riparian wetlands may require floodway culverts to
maintain existing hydrological conditions.
? Plans should show that the hydrology of remaining wetlands on the site will be
maintained.
Stream Impacts: Not Applicable
? Stream impacts must be clearly shown on the plans. The centerline as well as
the banks of the stream must be surveyed or located by GPS for the portion of
the stream to be impacted.
? The inlet and the outlet of all culverts should be aligned with the stream as
much as possible. Inlet and outlet elevations and streambed elevations should
be indicated. Any inlet or outlet protection must be shown.and enumerated on
the impact map(s).
? For bottomless culverts or other spans, a vertical cross section should be
provided that shows the minimum distance from each span to each stream bank,
the stream cross section, the height of the span above the stream and the
minimum distance from the edge of each footer to each stream bank.
Additionally, please provide a signed and sealed geotechnical report of
subsurface soils at the proposed bottomless culvert location. The report must
comply with the Division of Highways - Guidelines for Drainage Studies and
Hydraulic Design, prepared by A.L. Hankins, Jr., State Hydraulics Engineer -
1999.
? Multiple culverts or sectioned box culverts typically require the use of sills, off-
setting or other means to match the cross section of the existing stream (in order
to maintain stream stability and provide aquatic life passage). A vertical cross
section of the culverts should be shown overlain with the up and downstream
stream cross section including the stream flood-prone area.
? Impacts associated with dam construction must indicate and enumerate all fill
associated with the dam footprint, spillway and any bank stream bank
stabilization. The length of stream impounded must also be indicated and
enumerated.
fry
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~-y-4~QCnc~ tt9 0 ~ z i I w ~°»7w Yp~® Ile, Signature: Date:
h~®QpW-h ~ lei° ~ Town of (~orrisville, Town Engineer ~ ~
li ~®mJW I l'"J°}Z~U!n I i N Engineering: , aROJECT xo. PLT-1QQC`°~~~ e.
Planning:
VV~~~V~~ ~I Q. Other (Specify): ru.r~N ~ PLT1 OOQO°t~1
Y4~UlQ(/9Q sux n Bx: RTF
p~LYZ00<L NI Li < IK
~QO(nf°u3~ {Zj W u re: Date; DRAWN BY: RTF
B ~I-W~a ~w FZ~a~re- r I aS I Town of Cary Utilities, Water and Sewer SCALE: 1"=60'
pOA<[ p (n Z Z l.i (L I1- DATE: -7-2010 Engineering Inspection Services must be contacted [phone] at a minimum 24 hours prior to
-w~-OTC? I 1 et f zCK dd the commencement of any construction activities. --ET No.
Owp O O Q 00 Of IL wwod~r
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GRADING LEGEND _
\ EXISTING ~~jj'' ~j ~ I , I, XISTING ~ r ~ . AN~NTOND ~00~ PLAC~'1 , ~
J[~STICF WALK FLARED END SECTION STORM DRAINAGE ~ ~ ~A~l.1 ~ V ~ . f FI ~25--L.F 24" .a ~IN~{tcFl ~ ~ a ~ E 1 •f ~Q~ i
(5~ PUBLIC R/ 'UBLIC RAW) ~ ~ 50 FUBLTC W , ~ I, ~ , ! ~ TERRACES _ ,ci w CB 401 ~ ~ ~ ~ ~ 5 j~~ } ; ' ~ CB 5D1 ' ~ ~ ' ~ ~
CATCH BASIN - ~ • • • - STORM SERVICE LINE ~ THE GARDEN. GARDENS ~ k Il T/C=150.85 l I ~ ~ T/C=355.55 ~ °j
bROP INLET ---Tp-TP-Tp- TREE PROTECTION ~ AT TQWN HAT,] I ~ ~ INV.fiN=346.65 (08'40 i INV. IN=350. (CB 502) ` I ( ~ ~ ~ W ~ p INV. OUT=346 5 1 I _ ~ INV. OUi=3 0 55 D1 604 y,~ ~ c
~ sroRM s>=RV~cE INLET ~~~`"~~~'~M~~~ LD LA LIMITS OF DISTURBANCE ~ ~ RETAINING WA~WITN FE ~ ~ ~ ro- ~ ~ ~ T/G=360.50 ~ ~ Z 0 ~ ~ ! - ~ INV. OlTT~355.45
~ ~ I r'~ CB 402 s STORM SERVICE ROOF-DRAIN WOODED AREA ~ ~ ~ "~„'I~~ ~ T C=351.12 1. ~ I < OR HAND~iL WHERE HEiG ~ , ° GB 402 I f ~ ~ EXGEE05/1.5 FEET " ~ EXISTING 50' P5NC ~ 23 LF 24' RCP ~ ! ~ ~ ~ w ~ ~
t / \ ~ --r INV. IN=347. T/C=351.12 ~ ~ (AESI BY OTHERS)'' t ,i ~ @ .0.65% U m { } I ~ GA5 EASEMENT 35 iF 4' RCP ~ ( k ~ @ 4. 5% 6" RGP ~ ^ ~ ~ ~ INV. IN=347.25 CB 403 l ' 1 1. s
JUNCTION BOX ~ ~ ~ ~ ~ INV. OUT=34 i 30 PERT ETER ZJJ ~ ~ t ~s GB 403 INV. OUT=346.78 ~I „ i VELOCITY DISSIPATOR /li_I ~ ~ 3 403 .11 I _ ~ . .@~ 0.5 x ~ i ( b ; k ~ ~ ¦ I` ~ ~ ~t• 9'Wx15'Lx18"THK. ~ / a ,I €i ~ ~
5 CONTOUR / ~1 SETBACK I ( DI 406 ~ ~ DRAINAGE FLOW ARROW / ~ ; i T//G=354.15, ` T/C=35,1.59 2`~~ ~ ~ ~ f JFN. pUT=350. INV. IN=347.70 CB I I , ~ ' 1 ~ " ~ ~ !14 j 15" I~GP ? - 20' STORM DRAINAGE • ~ ¦ 'C=35,1.59 ' ~ ~ 1 . ~ OLASS "B; RIP 2 ~ / ~.1 I ~ ~ 4 V. IN X347.70 CB 404 ~ I °o i I ~ i ~ ...E ~ ~ @ ,6 % f EASEMENT (TYP.) ~ ~ ~
B 1 CONTOUR ` .1..~ ~ ~ ~ INV. IN~347.64 C ru LINE BREAK SYMBOL 2~0 ~ I ~ ~ INV OUT 347.¢1 ~ r^"q V. IN=347.84 ~OB 405 ~ + ~ --r. r ~ ~ ~ ~ ~ L ~ f i ~ ~ V. OUT=347.6,1 ~ ' ~ ~I' € e~ ~ { ~ I z , ` ~ f"
EXISTING 10' CONTOUR { P ~ ~ g I - 1,,."r.. 250.50 5 f 1 . 1 ~o j ; ~ ~ ~ L~C . q~SSIPAT R 1 ~ JB 6D3__.~-. , ~~~r ! ~ ~ pi ~ m ~ ! ( WxJ2' 1$'THK, ~ -.RIM 355.47 ~ ~ ~
250.00 TOP & BOTTOM CURB ELEVATIONS mm__....__.m_~_.~._.__._._._.. EXISTING 2' CONTOUR ~ ~ /C 35 .18 I ~ ENV. IN= 51. CB 3 6 ~ ~ ~%i" f ~ ~ ]NV. IN-350.95_ DI 8~ ~ I? u _ ~ I ~ ~ ~ ~ 5 RCPRAP ,~~t ~ f ~ ~ U} Lh ~ I ~ ~ - ~ , ~ i . A LE I POND ~ ~ ~ J o t,"~1{JV. OUT=35D.95(" _ - ~ ~ - ~ ¦ ~
- - - - A ~ ~ ~ ~ ~ ~ _ e ~ ~ 7W-223.00 TOP OF WALL ELEVATIDN E SEMENT LINE C t 4 ~ -gh, ~ ~f ~ ~ i , S RMWA c s 1 ~ ~ f ~ ~ ~ ~ 1-- - t ~ ~ ~ ~ ~ a
BW=213.00-BOTTOM OF WALL ELEVATION ~ ~ 1 ~ ` L._ 4 " ~:26` STOR RAINA E ~ rOR RAINA E ~ ~ I ~ ~ ~ ~ MAIN EEA~EJAENT ! I ~ ~ (k, ~ ~
NOTE; BOTTOM OF WALL IS GROUND ~ ~ 1 ~ ~ f,.. ~ FAS~,;IENT { ) ~ Tw=37o.5a , ~ I - - ~ ~ ~ { ) ~ A i~ , 5 E SSW" S E ~ ~ 1,~`~STQ ~,AT~ ~ l ~ T c ~ ~-1357 ~ ~
ELEVATION NOT WALL FOUNDATION) ~ BW=37D.00 ~ 11364 ~ 39 ~ ~ • ~ 355$, PAD=355.8 ~ =355,8 ~ ~ ~ t F ~ ~ l / P~` ¦ Y, ~ , ~ ~ I ..O -=351.51 ~ h~1 in
250.60 SPOT ELEVA"T"ION ~ ~ TW=371.00 ~ 65 ~ ~ `100 LF~15" R h~ 5" R h~ ~ / ~ ~ ~ ~ d +•YE~ S ~~~iE~T~) ~ e` ti I ~ 357_ .02~ ~ a ~ °w ~
BW-366.00 ! I I I - Q DO o ~ ~ ~ I 3 3$ \ I,~,G__.WAL~ NOTES: ~ 91 LF 36" RCP ni ~ : ~ ss y ' . ~x~'~ ce 5~ ~ ~ ~ n @ 0.51% ~ ' w
TW=371.35 ~ ~ I \ PADS 36 .35 P =358.33 ~ \ t ~ r ~~x @ ,52 l ~ ~ I I ~ ~ ~~~a ~ I IN~3 135.08 3) ~ ~ ~ , i ~ i f ~ " ~ PAAw357rfl9~ ~ `i ~ ~
BW=366,00 ~ 36 \ t THE RETAINING WALL ALIGNMENT SHOWN ON THESE PLANS DEPICTS THE LOCATION OF THE FRONT/BOTTOM FACE OF 1HE RETAINING PAD=365 27 58 LTi 18 RCP 357.47 ~ ~ WALL. ~ ~ 0 5.34 \ Ii ~ ,~~,,r°`~~ t TB 341.63'. ~I \V~LOCTTY}II5SIP Om;`0~6~ I ! ~ r~~ ~ ~5 LF;,15'~RCP~ ) W c~ ~ / ~ _ ~ INI~ OUT=347.88 ~ ~ 1,1'Wx1 ' 18"dHK. 4€1 ~ ~ ® 357. ~ ~ ~
RETAJNING WALE. WITEi FENCE 364.84 363.5 ~ ~ S~ / ~ I ' C7 ~I ~ 2~ LF 1~" R ~ \ 7~ ~ ~ ' ~ C B RIP~iAP ~ ~ ~
2. RETAINING WA OR HANDRAIL WHERE HEIGHT ~ ~ ~ ~ ' LLS SHALL BE DESIGNED BY A REGISTERED NORTH CAROLINA PROFESSIONAL ENGINEER AND PROVIDED AS A E9lCEEDS 2.5 FEET ~ 5 C 3O6 ~ ! j ~ " STANDALONE CONSTRUCTION DRAWING 5ET TO THE TOWN OF MORRISVILLE FOR APPROVAL PRIOR 70 THE 15SUANCE OF BUILDING t T ,C=35 ~ i ~`r, 1 @ 0. 1 ~ ~ ~ EW 6p0 i ~ ,.'o ~ PAD=353.4 ~ ~ ~ ~ NV. OltT=347 D i ; f I T C- 55.71 : ~
p~Ml~, {DESIGN BY OTHERS) PAD-366.63 INV; IN .00 (DB 307} ~ - ~ ~ \ INV.A0 4,90. ~ ~ ~ ~ ~ i0~ 1 " RCF'~~ ~ 352.95\ ~ ~ ~ 57 ~ 35" RC~ ~ ''1°i f ~ i f~ iN/V~UT=351.95 ~ W A / .85% ~ ! t. A ra ~ { d! i.1~4°l0 ~ E P! ~I [ ~ ~ ~ ~ ~ ,F I : ~ "
3. RETAIN]NG WALLS SHALL BE A55UMED TO BE BACKRIiED WITH OFF-SITE BARROW MATERIAL OR PROCESSED FILL UNLESS ~ ~66,50~ ~ ` I 363 ~ , e~.,""off i ~ ~'~~~E~ ~ ~ ~ ~ ! ~ i ~ ~ / JB 01~ II 1~ f ~ ~ M ~ ~ ~~~t~~in~iitrr
CONTRACTOR CAN PRONDE OWNER WITH CONFIRMATION FROM THE GEOTECHNECAL ENGINEER AND THE RETAINING WALL DESIGNER \ I x THAT READILY AVAELABLE ON-SITE SOILS CAN B U5 . ~ ` ~ J E ED , 1 f• ~ . s i ~ ~ PAD=359.25 - ~ I ` 3 3.70 4 I , l [ 1, ~ 1 , ~ RIM`635 ' ~ ~ i ~ ~ ~ t >>~~y C~1~ . 3yh ~ ~ t ~ ~ ~ ~ ,INV. IN 49. 9 ~JB~fiO2) j~ ~ ~ [f ~ i~
B 3D9 ~ ~ _ ~ t s ° I 4. THE TOP AND BOTTOM OF WALL ELEVATI(ANS SHOWN ON THESE PLANS IDENTIFY FINE ~ ~ - ~ ( ~ ~ ~ INV, 0 34265 i F =354.00 d t ~ ;I, : . p ,~~SS1 PRA=353:98 , ~ E ! 8 L~' 3~'4 RCP ~ ;3W=353.2 + / i .r; i ~ ~ ~ Q 9
SHED GRADE ELEVATIONS ONLY. THE EXTENT TW=372.6D I ~ QUi~360. 4 ~ ~ I i ~ CE THAT THE RETAINING WALL WILL EXTEND BELOW GRADE TO THE FOOTING SHALL BE IDENIIFlED ON THE RETAINING WALL I i ! CB 5' i VAR~LE WI D ~ ~ `i, ~ ~~@~ 1A`0% ' I ~ ' ' 4- ~
CON5TRUC710N DRAWINGS. BW=372.00 ~ ~ ~ " i ~ T ~ ~ ~ . 25. ..18"_ P . ~ ~ I m _ i l T =353.88 t ' ~ ~ MAINTE,NA~E/ CCE~SS 5 ENT ~ ~ 1 ~1 ` ~ ~ [ ~ f ~ ~ ~ 1 R E ~ ~ ' ` ~ 1` r ~ : 4 ~ P ~ 358.67 ~ ~ ~ 263D
CB ~I 5. RETAINING WALLS GREATER THAN 30" IN HEIGHT SHALL HAVE A RAILING OR FENCE INSTALLED AT THE TOP OF WALL. ~r ~ ~ E ~„1~~~~ ~ 17 f T - 56 ~ CB ~`w I . iN=349.90 (DID ) {FOLLOWS PRO LINES) v 1 ~ ? ' " ~ _ I . oUT=34s.BD ~ ~ ~ ~ I ! sD~ ( 1 T - 55. ~ C ' ( ~ ~I I I I ~ ~ ~ I (6Q` ~ ~27~~H~~)I, R =356.48 h ~ o~ 358.81 ~ ~
25 LF i5» RCP i Ir i 1 ~ , I I / ~ ` INV. =351. ® 1.OD~ ' \ ` I,, _ ~ I + . IN- 1.4 305) j B ~ F ~ INV. =351. 9 ~ i i~ ~ ~ / ti ~ f ~ INV OUi 29~ V,P03 M ~ 13 ~ ; i ~ , ~ ~G I PVE~~'
[ I ~ I g ss _ r ' i ss PAD=355.8 r~ ~ l ~ ~ 8 3 OO ~ PAD=359.49 r . ~ ~ ~ ~ P ~ ~ ~ ~ ~ ~ ~ 358.76 ~ ~~~~~+,pl~l~i~~~~~~~.)~
[ i - I 35.95 30' PERIMETER , ~ 9 LF " RC ~ 18 ~ 3595 i r~'n! ! ~ ` 5 ~ ~ <<i~ ~ I~ ~ 358.26 1 ~ ~ 1 ~ ` ~ ~ ! 1 { ~ 357.11 ~ ~ ~ ~,r / ~ f II f ~ ~ f~` ~ /,~~,~1 ~J ~ ~ y!\ , ~~t ~ ` € I 359.19 ~ I
SETBACK / I/ ~ ` CB 3 .33% 0. 11 € I\ 357.1 ~ ~ C=3 .i6 I " 1~ ~ ~ 30 10 I ,r I ! ~ ~ ~ j / I I ,
E i ~ I N' S. CB 3D , I r - - - f"'" INV. ~ 89 CB, 1 ~ T C=359.26 p \ ~Ad=35 ~.~AD=357:1 ~ ~ ' ! ~ ~ TQP~F ,/r~ ~ ~ I I ~ ' ~ ~1 ~ ~ ~ ~
~ f 3~5 INV. 359.79 l I I . IN=355, ( 308) ~ ~ ~ I I .OUT=355. l 358.90 ' ~ ~i l I ~ ~1 ~ ~ ~ ~ ~ L..~_ ~ ~ ~ ~ ! ~ I '`~P ERIMETER ~ ' ~ 81 ~ ~ ~ a ~
~ ~ / o ~ 1 1 ~ , I ~ , 11 ` ~ "t f l~ ~ l ~ ~ l ~ r" ~ ~ ' f ~ ~ ~ ~ 56THACK ~ ~ ~ ~ , f 11 0 0 0 0
74 LF~ 15" R , 363 2 , 360.80 ~ ~ 4.789 ~ ~ ~ ,l PAD= 9.36 _ - 2~ DAM A I_`sT~~wA~ ~ ~`l , ; ~ ~ ~ I ~ ~ i s ~
VELOCITY DISSIPATOR ~ t ; , i3 ° . ; ` 12 - "'1 tF=18° _RCP 1 , Q~, ~ 76'x12 ~Lx18»THK, ~ CB 311 ~ ~ ~ 14 PAD=3$3:75 _ 1,83% AND; CES i7~1E r ~ t i ~ ~ " ~ =357.25 l~ ~ I ~ ~ 1 ~ PAD~380.44~ ' I ~ ~ ~ ~ _ ~ /
CLASS B RIPRAP PAD-361.00: ~ ~ VARlA6 WIDTN~ YFETiIWD r~ T C=368.14 ~ ~ ~ PAD=365.41 ~ ~ : ` _ ~ IN/V. OUT=364.39 ~ i ~ 363:54 ~ ~ DI 302 ~ MAIN CI:/ACCESS EASEMENT s ~ ~ ~ ~ 1 CB 310 T G~'3 2 20 ~ _ ~ e- ~ ( ~ I ~ SEE E F ~ ~ I ~~I(,Bw 3s1.Dy ~ ~ 1 1 TW=360.50 , l ~ ~ m` ~ ~ Z ~ ~ ~ ~ l~1`' ~ !'®1 ~ BW=360.DD 1 '1 ~ i I ¢ a
~xx i` ~ j ~ T C-3&8.14 ~ s 3D' TYPE 'B' BUFFER (POLL IPROPERT`( UN~~ " / ~ E INV. ~I. 49. DI 303 / ~ ~ . 25 LF 15 RGP i y ~ \ I V~pCT11E' DISS)PATOR • a ; r( f ~ ~ E 360.01 . / ~ ~ x15'I~k18`TH ~ ~ ~ r ~j' ~ ( ~ PAID=360144 ~ ~ o ;;g ~ ° °
AND PERIMETER SETBACK ~ E ~ ~ ~ 1 ~ ~ INV. IN=364.1 B 311 ~ INV. I - 49.2D CB 30 TEMPORARY VARIABLE ~ " r ® .009 k -IpAyf,{~64. ~1 ~ I _ i ) / " f' ~ ~ ~ ~ ~ 7 INVl OUT=364. "aNV° i-.. - r ~ 1 C- B R PRA 1~ ~1{~ ~ 359.29 PAI7~360.77 ~ ~ ~ 0 0 ~ _ ~ !1 ~ i~ r ~ ~ TW~36D,OO 1. '~I~11, fri w w w
WIDTH CON5TRUCFfON ~ VELOC~'TY, DIS5IPATOR ~ ~ cs 30 PFd?1M ~ ( I ~ 360 ' T/~"'{°`'~- , 9'Wx15' `18"THK. ~ j ~ 365 ! ~ 1 r' EASEMENT ~ ! g s cK ~ ~ ~ ~ ~ ~ ~ 359.96 ?'~H r - ~ ,l BW=352.DD _ ~ :;~~~lll a a Q a _ _ _
30' PERIMETER CLRS5 rB RIPRAP ~ ~ r l ~.r, ,f ~ ~ ------------~4-""_ - f~ i° ~ f ~ ~ ~ ~ 1~ TW=36D.3~ ~ ~ , , 1 U] ~ ~ tt ~ c ~ F\ ~ B=355,DD 1 I I o 0 / ~ ~ ° o
_ SETBACK ~ » ~r ~ V 1 I ~ ~ ~ 54 LF,30 O-RING RGP ` ®1.06% j ~ ~ ~ ~ " I;r 3 8 / ~ ,.~,:u ~ ~ ~ I ~ f ~ ( ( l
I ~w ~ I ~ , . 2' WIDE CONCRETE - - _ ~ ~ 1 I / ~ 1 ~ I ~ " .,...~'I r ~ 1 ~~a ( ~ ~ ~ f W
FLUME WffH LEVEL ~ / ~ ~ ~ ( ~ r`?ETAINING WALL WIT}1 FEN DI 303 ~ ~ SPREADER APRON ~ ! ;'r ? ~ OR HANDRAIL WHERE HE T G=357.60~~~-.~~ ~ 4 ~ 4D fLF 30"~Q,R[NG`RCP ~ ~ ~ _ ~ '~1. . , ~ ~ i i o cv ~ . t - _ _ ~ l l f ~
.r ~ 1 ~ ~ ~j I / / ~ I i (SEE DETAilS) I . a I I 1 f 2D sroRM > ~ ~ ' ~ , ExcEEDS 2.5 FEET INV. oUT=3,54.35 _ ^I• f \ I f EAS E E ~ I i ~ l ~ ~ I rm r ~ _ SIB 3D1 ~ ~ r N ~ RIM=353 ~t1 ~ ( A ~ ~ ' ~ ~ "~RE~AINING WALL-WfIkl FENCE ~ ~ ~~~7j~;~ ~ ~ ~
~ ~ \ i / f ~ ~ 1 I ~ ~ (DESIGN BY OtFEERS) ~ ~ ; , ~ 1 \ f , D P~RIMETER - I ~ 376,78 ( \ 34 ~ ~ ~ ~ ~ i ~ INV. IN 348.20 DI_301 ~ ~ BW=385.00 _ OR HANDRAIL WHERE HCIGNT_---
TEM~oRAR~ ~ 01 1,Di i ; ~ ORMW~TE~ \ ~ ~ I { ~ ! ~ r ~>1TSACK~ t ~ \ PAD 377.38 j ~ ~ p ~ ~ e ° ~ , T G=,375.25 ' T-TURNAROUND IN=370,97 CB 1' \ / , 144 LF 24" O RIN CP ( I ~ ~ ~ ~ ~ ' ~ 6,3 Lf: 2.4"-u~tCP 00 r ti ~ 1 ~ ~ ~ EXCEEDS 2.5 FEET 364 00 I~~ ~i`~- (DESIGN ~n
28 r ~0 3D' PIrRIML'TER! ~ m u EASEMENT ~ • • • ~ ~ • NV. OUT=370.5T " ~ ~ ~ 0.8 X ~ ~ V~ ~ I ~ SETBACK ~ ' PA~=379.01 ~ ( ~ ~ ~ ~ ~ ,$9 ~ BY oTHERS) W=3~ DD ~ ~ ~ %J1l I RETAINIl~G. ` EftANDS ~ , D4A„~ `EAU- WITH 50 NEUSE RIPARIAN BUFFER ~ . I _ _ ' • fit 1F 15" RCP OR HANDRAl4`I1l~IERE fIG I HELD LOCATED„
~ t / V ~ \ ~ ~ ~ ~ ~ 6,39 E ~ • k ~ I ~ ~ , ~ ~ 27 ~ ~ .y1 ~ .f-'~~ ~ ~ ~ ~ ~ l f „j~ ~ (MEASURED 50' FROM TOP ~ ~ '"'@ 7.73% (DESIGNS BY Ol1R5) } i ~ ~ ~ ~ ~ OF BANK, EACH SIDE, TYP.) ~ i H
I \ F \ ~ E i f E ` 376;72 ~ ` ~ / ~ ~ I ! EXISi1NG 5D' PSNC ~ PAD ~ 376.31 / ti \ ~ ~ ~ ~ I ~ 280 LF ~ 5" RCP ~ ~ ~ ~ 7(ISTING 5D' PSNC i j, i ~
376.57 ~ ~ ~ 4.07~~ ~ r'` GA5 EASEMENT ~ d / 33 \ ~ f I `t 17 LF 24 RCP j O ~ / t i ( (e k I ~A5 EASEMENT ~[,b ~ P a^~ ~ ~ U1
I I ® 4% ~ ~ . PAD=378.23 ~ ~ ~ ~ ; ~ ~ ` [ e- _ , ~ I I ~ 9 ~ fir llt ~ I ~ r~ ~ ~
1 ~ ~ I,' ~ 20 E 24 LF 16 RCP ~ ~ ~ "^3 6.02 37 / PAD=378.24 i T C=375:78 ( 1 . d " I ®0:83 , a a: T _ :~1~ ~ I ~ ~ I I ~ OWN 1 ~ I~.IN=371: C 20 ~ / T~V~N OF MORRISVI~.~F,,,CRA~),~,~_NaTES: p
20' STORM DRAINA ( >5 ~ ~ ~ ~c, / ~ ~ AND` ACCESS ~ ~ 375.90 INV. OUT=3 .2O ~ ; I I ~ \ G~"~ 1. CUT AND FILL SLOPES SHALL HAVE SIRE SLOPES NO STEEPER THAN 4H;1V EXCEPT A5 PROVIDED BELOW: 1. ALL GRADING, BACKFTWNG, EXCAVATION, ETC., SHALL BE IN ACCORDANCE WiM THE ~ A ~
I / ~ ~ i ' t 20' STORM DRAINA~E ~ 1. CUT AND • V 9 f ~ / I I ~ ,~4 ~ SLOPES E J ~ SLOPES BETWEEN 3H:1V AND 4H:1V MAY BE ALLOWED IF STABILIZER WITH VEGETATION THAT REQUIRES MINIMAL RECOMMENpATIONS SET FORTH IN THE GEOTECHNICAL INVESiiGATION REPORTS. REFER 7O ~ Z
1 i , 376.9~~ 32 ~ ~ ~ , 1 ~ ~ ~ G-~-m-.._~.......,~ ..,m..~,., INV. =3 • 2 103)` X29-'` ~ 'PAD=378.22 ~ E iY . ~ /a MNNTENANCE SUCH A5 WEEPING LOVE GRASS, RED FESCUE OR OTHER VARIETY WiTH SIMILAR THESE REPORTS FOR ADDRIONAL INFORMATION NOT TRANSFERRER TO THESE PLANS. W Z CHARACTERISTICS. SUCH SLOPES SHALL NOT BE STABILIZER WITH TURF GRASS. SLOPES STEEPER THAN 3H;1V
'7~oa _ ` i ~ ~ MAY BE s ~ i is+oo I~• -371. PAD=379.21 ~ ~ 5 ~ ~ ~ C 202, ~ EX. FES ~I ~ ~<:....m 3 ~ C 204 g1 i ~ r T G=375.78 - PLANTING, MAY BE ALLOWED IF STABIDZED WITH PERMANENT SLOPE RETENTION AEVICE5 OR A SUITABLE COMBINATION OF 2. CONTRACTOR IS TO CONTACT NORTH CAROLINA "ONE CRL.L" AT 800-632-4949 FOR W ~ PLANTINGS AND RETENTION AEVICES. UNDERGROUND UTILITY LOCATION 46 HOURS PRIOR TO ANY DIGGING. ~ ~
~ / `ems ~ T C--376• ~ I . ~ / ~ INV-361.00 -,wt, r ~ r ~ I [NV. IN-371.92 CB~103) ,v~' ~ e ~ INV. OUT 72.81
_ ~ ~ ~ ~ ~0 377.93 ~ ~ 0 ; ' ~ ~ ~ ~ ~[NV. OUT~371.70 ~ 2. THE MINII ~ •t i ~ 1 f '1 ~ ~ 377,49 1~ ~ ~ X71 LF 15 ~RC~ 2. THE MINIMUM SLOPE ON DRAINAGE SWALES IS 0.50% 3. SEDIMENT WILL BE REMOVED FROM BEHIND THE SEDIMENT FENCE WHEN R RERCMES APPROXIMATELY 6 INCHES DEEP. ~ W ~
~ ~ " ~ 'h ~ E 3. THE MINII P <tio , I._:;..;:;: 25 LF RCP ~ 1~ CP I I ® .62~ No r ~ 0.96 i Sx 30 - / i ~ti . , F 3 9 ~ C 203 E~.~.,. 3, THE MINIMUM DRAINAGE SLOPE ON PARKING LOT IS 1.0% ~ U 4. CONTRACTOR TO INSPECT STORM DRAINAGE SYSTEM QUARTERLY AND FLUSH OUT SYSTEM ~
F: . ~ CB 1O3 12 y"0o ~ i PAD-380.26,r " ~ ,,n J`,o°'~ _ : T/C=376.6 4. WHERE 4. WHERE 'STANDING WATER" IS DISCOVERED BY THE TOWN INSPECTOR THE AREA WILL BE RE-GRADED AND/OR pN© REMOVE DEBRIS IN SYSTEM AS NECESSARY. ~
' ~ • ~'/C=37 . ? ~ r ~ f ~ T1N 372.00 E~ II :1 I . IN,~372.6O~C6 2O4) - - - CATCH BI • ~ : • : ~ '~8 ~ ~ » °BW=37~ 1.20 k I . ldUi=3T :5D , • INV. IN=37 .41' (CB 4) ~°e, ~ B D5 0 / / ~1 l I, f ,,/2 EX. JB - CATCH BASINS INSTALLER TO CORRECT THE DRAINAGE PROBLEM. S. CONTRACTOR SHALL BE RESPONSIBLE FOR PROTECTING ALL EXISTING lJT1LmES TO REMAIN ~
: INV. OUT 72.6 ti, _ / ~ / 15 I • - 5. THE GRAt C- .S3' 31 ; ~ RIM-366.32 5. THE GRADE AWAY FROM FOUNDATION WALLS SHALL FALL A MINIMUM DF 6 INCHES WITHIN FIRST TEN (10) DURING DEMOLITION AND CONSTRUCTION ACTIVITIES. W ~
I ! _ I ~ - FEET. ' :~::3 7.15 96,`iLF' 15 RC A =373.7 i PAD=360.21 d - ..PAD-378.54 ~ ! ~,a' qE INv IN-361.47 2 WIDE CONCRETE , ®1.03 ~ ~ ,r' ~ ~~~`b °w; ~ " ~ ~ ~ 1NV QUT=3b1,37 6. ALL EXISTING TREES AND VEGETATION ON SITE WHICH ARE TO REMAIN SHALL EITHER 8E ~ ~
FLUME WITH LEVEE, i ~ 15" 378.98 A ; ~ .376.0 _ oti 6. BEFORE • SPREADER APRON ~ ~ ~ ~ 0 ° ~ ~ . 1 25 ~ .04~ ~ '1 / € ~ ~ L ti+ FENCE IN 6. BEFORE SITE CLEARING QR GRADING CAN START THE DEVELOPER IS REQUIRED TO INSTALL TREE PROTECTION PROTECTED QR REMOVER A5 ATRECTED BY THE ENGINEER. p 'i FENCE IN ALL AREAS WHERE THE EXISTING VEGETATION I5 TO REMAIN. ONCE THE TREE PROTECTION FENCE iS 7 CARE SHALL BE 7A1(EN WHEN WORKING AROUND, UNDER OR NEAR TRANSMISSION TOWERS,
~ i / 'h SEE DETAILS ~ - f ~ ~ 77. ~°r~ -1 ( ) PAD=37s.sd D4 ~ , ~ s ~ 3 ..1Y ~ INSTALLEs INSTALLED IT !5 TO BE INSPECTED BY THE DEVELOPER'S ENGINEER AND CERT1Fl® THAT TREE PROTECTION ppLLS, AND OVERHEAR LINES.
~ : \ ~ /C-377.53 ~ ~ / ~ ~ ~ ' TW=375.00 RETAINING WAL1 WITF1 FENCE FENCE IS ~ ~ ~ INV. N=373.5 (CB ~ ~ ~ ~ j ~ , ~ ' BW~371,. ,,a" OR HANDRAIL WHERE HEIGHT ALL AREA FENCE IS INSTALLED IN ACCORDANCE WITH THE APPROVED CONSTRUCTION ARAWINGS AND IS INSTALLED IN ALL AREAS IpENTiF1ED AS AN UNAISTURBED BUFFER AND ALL LANDSCAPE BUFFER AREAS WHERE THE 8, CURB AND GUTTER SHALL BE PRGHED TO MATCH THE AAJACENT DRAINAGE PATTERNS.
~ INV• UT=373. ~ / , 16 / ~ EXCEE{7S 2.5 FEET 1ANDSCAF 377.37 i ~ p f ~j i~ ~ / ~ 377.37 ~ a PAD=379.14 a : ALL PORT 1ANDSCAPE PLAN ASSUMES THE EXISTING VEGETATION IS TO REMAIN {I.E.: DOES NOT SHOW NEW PLANTINGS). ALL PORTIONS OF THE TREE PROTECTION FENCE MUST BE INSPECTED BY THE ENGINEER FOR PROPER 9. CURB ANA GUTTER SHALL BE FIELD CHECKED AND APPROVEp BY THE ENGINEER TO MATCH
{ , . ~ , A / , DESIGN BY OTHERS) ~ 24 Q a,a f" ~ ; ~TW=377.Ot~ ~ ' ' LOCATION LOCATION AND SATi5FACTORY CONSTRUCTION METHODS, ONCE THE TOWN HA5 RECENED THE CERTIF1CATlON BY EXISi1NG SURFACES AND TO PROVIDE ADEQUATE SURFACE DRAINAGE.
\ ~ AD=378 60 ~ , ~ BW=376.50 ~ ~ THE DEVE i ( ~ THE DEVELOPER'S ENGINEER THE CONSTRUCTION CAN START.
%s, ~ ~ ~ ~ ~ JB 312 RIM=369.61 7. THE PR01 / ~ / _ \ _ ~ ~ ~ PAD=379,73 / ~ RIM 376.00 INV IN=362.76 10. CONTRACTOR SHALL BE FINANCIRLLY RESPONSIBLE FOR D15P05AL OF ALL WASTE MATERIALS 7. THE PROPERTY 15 LOCATEA IN THE NEUSE RIVER BASIN. OFF SITE. THE RESPONSIBILITY SHALL INCLUDE ALL REQUIRED APPROVALS AND CONDfCI0N5
, ~ ' d~ l C \ 7 ~ F 77~ INV. lN=367.46 CB 313 = [NV. OUT=3 7. ( ) ~ INV OUT 362.56 8. NO ROCK ~ ~ ~ ,8378.37 , , r ' 6 38 AICTATEA BY LOCAL OR STATE EROSION CONTROL AUTHORITIES. 8. NO ROCK CROPPING VISIBLE AT TIME OF SURVEY.
~ , 26~ LF 15» RCA ,~a i ~ G \ 9. FLAR® END SECTION, SHALL HAVE A CONCRETE FOOTER PLACED UNDER THE END TO PROVIDE STRUCTURAL 11, THE PLACEMENT OF ANY FILL MATERIAL MUST BE GONAUCTED UNDER THE OBSERVATION OF
°~~V ~ ~ l ~ '23 ~ ~ \ 1°' ~ 1.00 ~ 9. F1.AR® E ~ ' ~ PAD=360.66 ~ " ,F:' 'S ~ l ~ 'h r ~ r~ ~ ~ _ SUPPORT. SUPPORT. THE OONCRETE FOOTER SHALL BE 3000 PSI, THE FOOTER LENGTH SMALL BE 2 FEET AND SLIALL A QUAUFlED LICENSED GEOTECHNICAL ENGINEER. UPON COMPLETION OF EARTHWORK ACTIVITIES, A FlNAL GRADING REPORT THAT INCLUDES COMPRCTION TEST RESULTS AND
I)( I ~ ~ i~ ~O o°~ "f i i~ ~ EXTEND 1 ~ ~ c ~ l ~ i " ~w o ? , WIDER TH ~c,~tr/ ~ ` ~ r ti 378f'0' 20' STORM DRAINAGE ~ • , EXTEND 1 FOOT UNpER THE FES AND 1 FOOT IN FRONT OF THE FES, FOOTER WIDTH SHAH T7(fENp 1 FOOT CERTIFIES THE TYPE OF FILL MATERIAL, ANA ITS PROPER PLACEMENT SHALL BE PROVIDED ~ WIDER THAN OUTSIDE THE EDGE OF THE PIPE. FOOTER THICKNESS SMALL BE 1 FOOT FOR PIPES EQUAL OR TO THE TOWN.
~ - ~ ~ 378.50 ' ' ' • LESS THA :a p ~ ~ \ a;' ~ ~ / r'` ( ' 3 ~ EASEMENT r° " _ 379.43 ~ i ~ 1$" ~ ~ , ~ "gip ~ ~ ~ OWMETER ' LESS THAN 18 INCHES fN DIAMETER AND 2 F00T THICKNESS fOR PIPES GREATER THAN 18 INCHES IN 9`~ DAMETER AND LESS THEN 36 INCHES IN DAMETER. PIPES THAT ARE 36 INCHES OR GREATER SHALL HAVE A
„ ~ ~ i ~ ~ ~ x ; : ~ , ' ~ : ~ : ~f: ~ : ~ ~ 22 ~ PAD=379.73 i ~ f ~ ~ FOD'TER T FOOTER THICKNESS OF 3 FEET. ~t 10. DO NOT PAVE SURFACE COURSE UNTIL THE CONSTRUCTION IS SUBSTAMLQLLY COMPL~.TE. f~f~~ Q
~ w ~ PAD=381.1 a ~ I ~ \ ~ ~ w : ~ : ~ i ~ rr 370.22 ( a ~ ~ \ ~ .I ~ E ~ t ~E a ~ 10. DO NOT I
~ / ~ I"~ ~ ( Df15TING 50' .R,~ ~ x ~ ~ ~ ~ GAS' EASEM ~ ° ~ 1v~ ~f 11. ALL HANG ~1 11. ALL. HANDICAP ACCESSIBLE SIDEWALKS, 5% MAXIMUM SLOPE ANA 2% MAXIMUM CROSS SLOPE,
~ ~ 379.92 ~ ~ ~ ~ I ~ 1 w ~ `,~Q i 'I
i ~ A ~ 29 i ~ , ~ I ` i ~ ~ 12. THE MENU ~ i PAD-370.45 ~ i~: u; ~ ~ & ~ PAD=36L15 ,7 ~ ~ ~ ~ 12. THE MINIMUM SLOPE ON THE LANDSCAPE AREAS IS 2.00%
E ~ p ! t J ~x~ ~ ~ ~ _ 13. RETAINING m ~ ~ A " ~ ^~P ° l r i~r. ! O 366.7 ~ 13. RETAINING WALLS MUST BE DESIGNED IN ACCORDANCE WffH SECTION 4.10 OF THE DESIGN ANp CONSTRUCTION ' nRDINANCE.
9 ~ ~ I ~ % ENV IN-365.1 / ~ , DROINANO 3 J ~ ~ r I ~ .-r'~ ~ INV OUT=362.5
~ 30 ~ PERIMETER ~ ~ ~ ~ I l f ~ ° 14. NO STRU( a S GK ~ ~ ~ h ~ . CB 313 ~ _ ~ ~ I~~ OR EASE6 j 379.33 tz ~ ~ T/ a31 7 % • ~ ~ , 14. NO STRUCTURAL GQMPONENT DF ANY RETAINING WALL CAN BE LOCATED WITHIN A RIGHT-OF-WAY, BUFFER, fsa arvl 01179 ax ~ Qy DR EASEMENT. ~ F~ Fh 11
N ~ 20 5 R ~ ,w; , " .I IN 0.21 ~(C 14)-- ~ .n 15. SEE SWEET C-3 FDR GRADING RESTRECTIONS AND CLEARANCES FOR EXISTING GA5 LINE ANA GAS EASEMENT, GRAPHIC SCALE
~ f 1 PAD=36D.54 ~ 1. O ~ I 70:1 `G~. - , _ ` ~ ~ 15. SEE SHEE N _ ~ ~ . 7 I
o ' , \ I ~ ~ ~ ~ f EX. TOP=366.6 c ~ CB 314 - _ I , STORM STORM DRAINA„rF.,,,,N_0_TES: 5D o 25 5D ~1DD
~ ~ • \ ~ ~ T C=374.2 r,•._/.~~_ C INV OUT-365.9 k / _ _ 4 m ~ I': • . • . • . • ~ ~ 377 D5 INV. OUT=37 ~ ' . _ ~ ~ 1 : f ~ ~ I ~ ~ " ~ ~ ~ I 1. ALL STOP -i. .~'r ~ ~ 1. ALL STORM pRATNAGE PIPES SHOWN ARE TO BE CLASS III REINFORCED CONCRETE (RCP) 1 inch = 6O ft.
N ~ ~ ,v \ 39 ~ UNLESS I i e~ . ~ - ~ UNLESS NOTEp OTHERlMSE. ~ ~ r~
PAD-- °o "'E . ~ m ~ f ( -a-7~as 4 3 1 ti ~ ° ~ 4 ~ ~ ~ ~ , ~ 2. ALL STOP 2. ALL STORM DRAINAGE CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE LATEST TOWN OF ALL CONSTRUCTION METHODS AND MATERIALS SHALL BE IN ACCORDANCE +MTH TOWN OF
t \ \ ~ ~ / 1 i ~ ~ 1aa ~ MoRRlsvl MORRI5VIl1E AND NCDOT STANpARDS. MORRISVILLE AND NCDOT STANDARDS AND SPECIFICATIONS. UTILITY INSTALLATIONS AND OTHER
~ 1 1 ~1 ~ °o \ i ~ ~ ~ t 1 ~ ~ t 3. ALL CON 3. ALL CONCRETE SHALL MEET A MINIMUM 30A0 PSI COMPRE55IVE STRENGTH. PUBLIC FACILITIES, fNCLUDING STREETS, SIDEWALKS, AND HANDICAP RAMPS HAVE BEEN APPROVED BY THE TOWN OF MORRISVILLE AND SHALL BE SO INSTALLED UNLESS A CHANGE IS AUTHORISED Fit
i ~ ~ ~ 1 4. r- ~ 7 7 G ~ ~ p ; ~ ~ AID. PIPE 4. ALL PIPE IN STORM DRAIN STRUCTURES SHALL BE STRUCK EVEN WITH INSIDE WALL BY WRITTEN APPROVAL. PUBLIC SANITARY SEWER EASEMENTS SHALL BE RECORDED PRIOR TO FlNAL a
~ ~t i i ( f3 5,58 ,r ~ Y ` " 5 ACCEPTANCE BY THE TOWN. UNLESS SPECIFIED OTHERWISE, THE TOWN OF MORRISVILI.E DEFERS TO 5, ALL. PIPE JOINTS SHALL BE MADE WITH PREFORMED JOINT SEALER, WHICH CONFORMS TO THE NORTH CAROLINA DEPARTMENT OF TRANSPORTATION (NCDOT) STANDARD SPECIFICATIONS. ~
~ ~ ~ S'!~::- ~ _ y1 ti ~i ~ ~'Z' ~ ' ~ ALT. PIPE m ."~;r ~ ~ 7 ~ ~ ~ L~.~ ~r' d 1, ~ AASHTO ~ ~ ~ ~ ~ ~ ~ ~ AASHTO SPECIFICATION M-198 FOR TYPE B FLEXIBLE PLASTIC GASKETS UNLESS OTHERWISE
~ ° / 1 ~ NOTED• ca ~ S CK,. ~ t i . NOTED,
~ C~ Y ~ 6. THE INTE _ / i ~ / , ~ 0. ~ d e~ ~ 6. THE INTERIOR SURFACES OF ALL STORM DRAINAGE STRUCTURES SHALL BE POINTED UP AND Tnwn of Morrisville
~ , ~ ~ E~ I ~ C"~ G~ / ; sMao~HE / ~ SMOOTHED TO AN ACCEPTABLE STANDARD USING MORTAR MIXEp TD MANUFACTURER'S APPROVED FOR COf~STRUCTlON SPECIFICATIONS.
/ ~o ~ ~ ~ ~ ~ ~ is ~ ~ . ~ ` 7. ALL BACI ~ / , ~ ~ 1,.., ~ r a 7. ALL BACKFILL SHALL BE NON-PLASTIC IN NATURE, FREE FROM ROOTS, VEGETATION MATTER,
4 WASTE C WASTE CONSTRUCTION MATERIAL OR OTHER OBJEC7iONABLE MATERIAL SAID MATERIAL SHALL Signature: Date:
m , ~ ~ 1,, o ~ ti TO FLOW BE CAPABLE OF BEING COMPACTED BY MECHANICAL MEANS AND SHALL HAVE NO TENAENCY Town of Morrisville, Town Engineer Dping(jnitials TO FLOW OR BEHAVE IN A PLASTIC MANNER UNpER THE TAMPING BLOWS OR PROOF ROWNG.
/ / ~ W / I o / / - /
v / TURIN ~ t / / 8, MATERIAL PURPOSE 8, MATERIALS DEEMED BY THE OWNER'S REPRESENTATIVE A5 UNSUITABLE FOR BACKFILL Engineering: pRaa~~r N~• PLT-1 QaOQ PURPOSES SHALL BE REMOVED AND REPLACER WiTH SUITABLE MATERIAL Planning:
~ _ / ~ ~ „ AC FILL PLT100Q0-G1 9. BACKF1LLJNG OF TRENCHES SHALL BE ACCOMPLISHER iMMEOfATELY AFTER PIPE IS LAIR, THE Other (Specify):
/ ;l ~ ~ FILL ARO , / FILL AROUNA THE PIPE SHALL BE THOROUGHLY COMPACTEA TD 95% OF THE MAXIMUM DRY DESIGNEDI Bx:
~ DEN5ITY ~ ~ / " ° BE COMP AEN5ITY OBTAINABLE WITH THE STANDARD PROCTOR TEST THE TOP EIGHT (8) INCHES SMALL BE COMPACTED 70 100 PERCENT STANpARA PROCTOR. DEARN Ex: SSW
.~T " r ~ ~ Q " v V ~ ~ ° ° Signature: Date:
~ w . . s T , , m 10. UNDER N 1Q. UNDER NO CIRCUMSTANCES SFIALL WATER BE ALLOWED TO RISE IN UNBACKFiLLEO TRENCHES . _ . _ SCALE. a
AFTER PI I9 AFTER PIPE HAS BEEN PLACED. j own or Lary utilities, water and Sewer I =uu
J 11. REFER T( 11. REFER TO PLAN & PROFILE SHEETS FOR STORM DRAINAGE INFORMATION NOT INCLUDED ON DATE: 06-09-10
°o THIS PLA 0 THIS PLAN. Engineering Inspection Services must be contacted [phone] at a minimum 24 hours prior to SHEET NO. the commencement of any construction activities. C-4
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SEE SHEET ~ E SHEET C- FOR PSNC TOWN OF M®RMSV LLE PRWECT #10-20000009 [MMcADAMS 'Im IF
GAS EASEME ?AS EASEMENT RESTRICTIONS DISTURBED AREA = 12.38 AC. PRELIMINARY DRAWING NOT RELEASED FOR C*ONSTRI~~GTION
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