20111084 Ver 1_401 Application_20111211

� � � � � � 0 8 �
`o�oF�AT�AaG Office Use Only
q � Corps action ID no
� � � o -c DWQ pro�ect no
� ��� � Form Version 1 3 Dec 10 2008
Pre-Construction Notification C Form
A A hcant Information
1 Processing �+� � ��
1 a Type(s)of approval sought from the �Section 404 Permit ❑Section`I�4,Permit ���'�'��
Corps
1 b Specify Nationwide Permit(NWP)number 3a 13 or General Permit(GP)number „
1c Has the NWP or GP number been venfied 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 �Ripanan Buffer Authorization
1 e Is this notification solely for the record For the record only for DWQ 401 For the record only for Corps Permit
because written approval is not required� Certification
❑Yes �No ❑Yes � No
1f Is payment into a mitigation bank or in lieu fee program proposed for mitigation �Yes � No
of impacts� If so attach the acceptance letter from mitigation bank or in lieu
fee program
1g Is the pro�ect located in any of NC s twenty coastal counties If yes answer 1h ❑Yes � No
below
1 h Is the pro�ect located withm a NC DCM Area of Environmental Concern(AEC)� ❑Yes � No
2 Pro�ect Information
2a Name of pro�ect SW Prong of Beaverdam Creek Stabdzation
2b County Wake
2c Nearest municipality/town Raleigh
2d Subdivision name Gardens of Glenwood
2e NCDOT only T I P or state
pro�ect no
3 Owner Information
3a Name(s)on Recorded Deed The Gardens on Glenwood Condominwm Owners Association Inc
3b Deed Book and Page No Book 9291 Page 145
3c Responsible Party(for LLC if
apphcable) � Nc�ol.�. �a-rr o�J ��^�w
3d Street address 1401 Sunday Dnve Suite 116 � "� � �' '�r�
3e City state zip Raleigh NC 27607 � -
3f Telephone no [phone] � 4` � �p��
3g Fax no [phone] � ��NR W�i�R�,U,��
3h Emad address �+�?�R BRANC(�
Page 1 of 14
PCN Form—Version 1 3 December 10 2008 Version

4. Applicant Information (if different from owner)
4a. Applicant is: �Agent ❑ Other, specify:
4b. Name: Star C. Smith
4c. Business name Elite Management Professionals, Inc.
(if applicable):
4d. Street address: 1401 Sunday Drive, Suite 116
4e. City, state, zip: Raleigh, NC 27607
4f. Telephone no.: (919)-233-7660
4g. Fax no.: (919)-233-7661
4h. Email address: [e-mail]
5. Agent/Consultant Information (if applicable)
5a. Name: Michael B. Shaffer, P.E.
5b. Business name NCU Biological &Agricultural Engineering Department
(if applicable):
5c. Street address: Campus Box 7625
5d. City, state, zip: Raleigh, NC 27695-7625
5e. Telephone no.: [phone]
5f. Fax no.: [phone]
5g. Email address: Mike [e-mail]
Page 2 of 14
PCN Form—Version 1.3 December 10, 2008 Version

B. Project Information and Prior Project History
1. Property Identification
1 a. Property identification no. (tax PIN or parcel ID): PIN 1705022013
1 b. Site coordinates (in decimal degrees): Latitude: 35.8161 Longitude: -78.6617
(DD.DDDDDD) (-DD.DDDDDD)
1 c. Property size: 7.38 acres
2. SurFace Waters
2a. Name of nearest body of water(stream, river, etc.)to SW Prong of Beaverdam Creek
proposed project:
2b. Water Quality Classification of nearest receiving water: C
2c. River basin: Neuse
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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 project is located in a common area of a condominium development on a 7.38 Acre site. The watershed consists
primarily of single family residences with pockets of commercial development. Bankfull conditions measured in the field
predict the stream at bankfull to be approximately 460 cfs.Velocities in the channel are approximately 4-5 feet per second
for the bankfull storm event. Larger storm events can produce up to 8 feet per second velocities in the entrenched
channel. The stream has widened and no significant riffle/pool features are discernable.Within the incised stream a
bankfull channel has formed.
The stream buffer is currently being maintained primarily as lawn with a few mature trees and landscaping elements. Two
private roadway bridges are located on either end of the project within the development. Scouring of the soil has
occurred around the upper bridge south west and lower bridge north west bridge abutments. The scouring has produced
undercut bank and foundation conditions at these two locations. Riprap was added to the banks in the past to control
bank erosion in an effort to preserve the existing magnolia and pine trees at the top of the bank. The stream banks all
along the reach have vertical banks and are continuing to erode.
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:
390
3d. Explain the purpose of the proposed project:
The purpose of the project is to stabilize the stream to prevent additional erosion and sediment deposition into the stream.
The project is planned to repair the erosional damage to both bridges, use improved bank stabilization methods to create
stable stream banks and provide enhanced common area beauty and improved riparian buffer function.
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PCN Form—Version 1.3 December 10, 2008 Version

3e. Describe the overall project in detail, including the type of equipment to be used:
This is an existing structure repair and bank stabilization project. There are three parts; structure repair, bank
stabilization and stormwater outfall improvements.
In the structure repair portion, erosion at two bridge footers will be repaired with fill material and proctected with scour
protection matting. The upstream bridge scour repair is approximately 20 feet in length. Construction access will be
through access point A-1. The repair will replace the scoured material in a stable manner and add extra erosion
protection in the form of erosion control permanent scour protection matting. This repair will be performed using a pump
around system to enable work in the dry.
The downstream repair is approximately 12 feet in length. The scoured material will be replaced and stabilized.
Permanent scour protection matting will be utilized here as well. Construction access will be through access point A-4.
Also at the downstream bridge a depositional bar for approximately 65 feet upstream on stream left will be removed and
the bank stabilized with scour protecton matting and revegetated. This bar is creating an eddy that is causing the erosion
at the bridge footer. The amount of material removed is estimated at less than 20 cubic yards. This repair and removal
will also use a pump around setup to reduce the amount of sediment impact from construction.
For the bank stabilization portion of the project,the reach length is approximately 370 feet of stream. Approximately 160
feet of existing rip rap (130 feet on stream left and 30 feet on stream right)will be removed and replaced with more
effective and more sightly, permanent scour protection matting. Permanent scour protection matting will also be installed
at other actively eroding bank locations. The total length of permanent scour protection matting(including the bridge
repairs) is approximately 335 feet. In addtion, all remaining areas of stream bank will be protected with heavy duty turf
reinforcement matting. The total length of turf reinforcement matting is approximately 415 feet. Bank cross sections and
channel dimensions will remain unchanged, except for where the vertical eroding banks will be graded back to a 1:1.5
slope. All scour protection matting and turf reinforcment matting will be installed will out the use of heavy equipment
unless bank grading is required.
The total disturbed area for all phases of the project are calculated at less than 10,000 square feet. One thousand (1000)
square feet of this area is in construction access with the remainder being areas for the two bridge repair sites,the outfall
modifications and the installation of the Scourstop ,the Terraguard 44P and Terraguard DC along the banks. All material
staging and prep will be done on the paved parking areas of the development.
The scour protection matting is a product by Hanes Geo Components trade named "Scourstop". Information is available
at www.scourstop.com. This matting is more effective than rip rap and allows vegetation to grow through the holes in it.
The stormwater outfall portion of this project is the modification to the stream bank areas underneath two 18"diameter
stormwater outfalls. Both outfalls currently extend beyond the adjacent ground profile by 6 to 12 inches. The flow from
both outfalls exits approximately 6 vertical feet above the stream. The flow currently runs over the rip rap down to the
stream. Both outfalls will have a landscape stone splash pad created just below their exit to dissapate energy. Flow will
then exist the splash pad and flow down a path of permanent scour protection matting as described above. The outfalls
themselves will also be surrounded with landscape stone so as to provide some additonal planting areas for native
vegetation. This and the vegetation that can be planted in the scour protection matting will more substantial scour
protection than rip rap and create a more sightly environment.
The equipment to be used in all phases of this project will be earth moving equipment and various other support
apparatus. Heavy equipment may include hydraulic excavator, skidsteer loaders, and material hauling apparatus such as
a dump truck. This type of equipment will be used for excavation and placement of materials for the project. The
construction equipment will enter on three sides of the Glenwood Gardens Lane bridge (A-1,A-2,A-3)for the upper
bridge repair, outfall modifications and the rip rap removal. The construction equipment will not cross the stream. The
construction equipment will enter the project at both upstream sides of the lower bridge (A-3 and A-4)for the foundation
scour repair, depositional bar removal and bank grading as required.
All pump around setups will only run during working hours. The entire site will be temporarily stabilzed at the end of each
work day to prevent night time surprises. No more bank will be exposed each day than can be completed on that day.
All construction access points will be returned to their previous lawn condition unless they are contained in Planting
Zones 1 or 2. Damage to automotive and pedestrian infrastructure will be repaired.
All utilities have been located and mapped and the �g�,c� ����mpany representative has seen the site and understood
what work will be done. All necessary precautions wilY"�e ff��e�n�ora,ns to Jr e°rsio�ia'�3a�ce���er 10, 2008 Version
Two planting zones have been defined. The lower channel banks (approximately 4' high or to bankfull) of the entire
stream will be planted in appropriate native riparian grasses plants and shrubs and no longer mowed to create an
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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 ❑ No � Unknown
Comments:
4b. If the Corps made the jurisdictional determination,what type
of determination was made? ❑ Preliminary ❑ Final
4c. If yes,who delineated the jurisdictional areas? Agency/Consultant Company:
Name (if known): Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
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 14
PCN Form—Version 1.3 December 10, 2008 Version

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. 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 ofjurisdiction
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 N/A
2h. Comments:
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 ofjurisdiction 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 Bank stabilization SW Prong of � PER � Corps � 390
Beaverdam Creek ❑ INT ❑ DWQ
S2 ❑ P � T Pump around during SW Prong of � PER � Corps � 25
upper bridge repair Beaverdam Creek ❑ INT ❑ DWQ
S3 ❑ P � T Pump around during SW Prong of � PER � Corps � 65
lower bridge repair Beaverdam Creek ❑ 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 485
3i. Comments: This is an overall positve impact to stream function and habitat
Page 7 of 14
PCN Form—Version 1.3 December 10, 2008 Version

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
Tem ora T
01 ❑ P ❑ T
02 ❑ P ❑ T
03 ❑ P ❑ T
04 ❑ P ❑ T
4f. Total open water impacts N/A
4g. Comments:
5. Pond or Lake Construction
If pond or lake construction proposed,then complete 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
Sf. Total
5g. Comments:
5h. Is a dam high hazard permit required?
❑Yes ❑ No Ifyes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
Page 8 of 14
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 any 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)
Construction ❑ Yes
B1 ❑ P � T Access SW Prong Beaverdam Creek � No 3160 7900
B2 � P � T Stab liz tion SW Prong Beaverdam Creek � Yes
� No
B3 � P ❑ T Stormwater SW Prong Beaverdam Creek � Yes
Outfall � No
6h. Total buffer impacts 3160 7900
6i. Comments:
Buffer impact B1.
This is temporary impact for equipment access. Five different access points will be used to minimize the overall impact to the
buffer. After construction is completed all access impact will be repaired and the impacted area will be planted to the
preconstruction level or per the Zone 1 or Zone 2 planting plan as appropriate.
Buffer impact B2.
This permanent impact will eliminate an existing mowed grass buffer for Planting Zone 1 on two sides of the stream for 390
feet and replace it with a natural riparian zone with native vegetation. The improved buffer will improve infiltration and
stormwater filtration. The impact will also involve reshaping the buffer as the vertical eroding banks will be sloped to 1.5:1
prior to installing the permenent erosion control measures.
Buffer impact B3.
This permanent impact is the addition of scour stop materials and landscape stone to provide energy dissapation and a
hardened pathway from the existing stormwater outfall to the stream. The outfalls are currently approximately 6 vertical feet
above the streambed and water flows down a steep transition bank hardened with rip rap to the stream. The impact will
provide improved control of the stormwater flows from the outfall to the stream.
No planned impact will remove any existing buffer vegetation except for mowed lawn and all impacts will be replanted with
riparian vegetation to provide improved buffer function. Any impact or damage to other than lawn will be replaced with
equivalent permanent vegetation.
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
-Establishing five separate construction access points to minimize overall buffer impact through reduced vehicle movement
within the buffer zones.
-Providing improved and additional erosion control materials to reduce stream sediment contribution.
-Adding permanent deep rooted vegetation in both buffer zones to improve riparian function.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
-Use of only tracked low ground pressure construction equipment.
-Where possible, use of materials that require only manual labor for installation.
-Use of pump around construction in three locations to reduce soil compaction.
-Project dates are planned for most successful planted vegetation survival.
-Use of a tightly scheduled construction plan will shorten construction impact.
-Use of tree protection zones.
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PCN Form—Version 1.3 December 10, 2008 Version

-Site will be stabilized at the end of each working day.
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.
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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 ❑ 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:
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 11 of 14
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.
❑Yes � No
Comments: project will not impact existing stormwater management
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project? 0.0 %
2b. Does this project require a Stormwater Management Plan? ❑Yes � No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why: Current stormwater management will be
unchanged with this project.
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 Govemment Stormwater Review
3a. In which local governmenYs jurisdiction is this project? City of Raleigh
� 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?
4. DWQ Stormwater Program Review
❑ Coastal counties
❑ HQW
4a. Which of the following state-implemented stormwater management programs apply � ORW
(check all that apply):
❑ Session Law 2006-246
� Other: NSW
4b. Has the approved Stormwater Management Plan with proof of approval been
attached? ❑Yes � No
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
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PCN Form—Version 1.3 December 10, 2008 Version

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
letter.) ❑Yes ❑ No
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 2B .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.
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
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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?
❑ 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?
This project will have no impact on existing stream habitat. The current riparian zone is mowed fescue grass. Used the
NCNHP Virtual Workroom to find potential impacts. No potential impacts found.
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?
South Atlantic Fisheries Management Council,website and online maps,
http://ocean.floridamarine.org/efh_coral/i ms/viewer.htm
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?
State Historic Preservation Office maps http://gis.ncdcr.gov/hpoweb/ No listed historic sites
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: No net change to floodplain
8c.What source(s) did you use to make the floodplain determination? City of Raleigh GIS floodplain maps
ApplicanUAgent's Printed Name ApplicanUAgent's Signature Date
(AgenYs signature is valid only if an authorization letter from the applicant
is provided.)
Page 14 of 14
PCN Form—Version 1.3 December 10, 2008 Version

Addendum to PCN form:
SW Prong of Beaverdam Creek Stabilization
Veqetation Plantinq Plan
The vegetation planting plan is still in development by the designers and property owners. The basic agreed to
guidelines are as follows:
For Planting Zone 1, the region from the water level to four feet above the bed of the stream (the calculated
bankfull elevation) whether behind the Scourstop material or the Terraguard 44P for the entire reach, the soil
will be prepared and seeded with a permanent mix of native Juncus and Sedge (Carex) with smaller
percentages of tickseed (Coreopsis), coneflowers (Rudbeckia), Joe-Pye weed (Eutrochium),bee balm
(Monarda) and other appropriate flowering riparian vegetation seeds. A temporary seed mix (probably fescue
and/or annual rye) suited to the time of year of the project completion will be included.
In addition to the seeding, Juncus and Sedge plugs will be planted at a spacing of three feet within the
scourstop openings. Other permanent riparian plants such as dog hobble (Leucothoe), lilies (Lilium), iris (Iris)
and ferns will be included at discrete grouped locations (approx. every 5-6 feet) both in the Scourstop
openings and in the TRM for improved bank stabilization and beauty. The intent is to provide an improved
riparian streambank both functionally and visually, hide the TRM and Scourstop and establish vegetative
growth dense enough to discourage entry.
For Planting Zone 2, the region along the entire reach from bankfull to the top of the terrace, the bank will be
prepared and planted with fescue and annual rye seed mix under the TRM as well as overfilled. Interspersed
throughout this zone will be grouped planting s of some of the above perrenials listed above as well as
permanent riparian shrubs such as dog hobble (Leucothoe), red twig dogwood (Cornus alba), sweet shrub
(Calycanthus floridus), button bush (Cephalanthus occidentalis, native oakleaf hydrangia (Hydrangea
quercifolia) and others (approx. every 8-10 feet) . For the upper 3-4 feet of this zone there will also be a
selected planting of riparian trees, including red maple(Acer rubrum), ash (Fraxinus pennsylvanica), oak
(Quercus sp.), sycamore (Platanus occidentalis), cypress (Taxodium sp.), river birch (Betula nigra) and others.
All planting will be set into the TRM.
All Terraguard 44P or Terraguard DC that is above the low water level will also be overfilled with local topsoil
(from the removed bar) to a depth of %2 inch and seeded with the temporary and permanent seed mix for the
Plant Zone. All seeded overfill will be rolled and covered with straw. Planting and overfill will occur as the
matting is being installed. All plugs and plants will be planted through the Scourstop openings and through the
TRM.
The project is planned so that the growing season begins at project completion.
Additional permanent trees may be planted on the top of the bank.
1of12

Addendum to PCN form:
SW Prong of Beaverdam Creek Stabilization
Stream calculations
1.0 Peak flow
Peak flow was calculated using the NRCS SCS Soil Cover Complex method Qp�o-za
from Erosion and Sedimentation Control Planning and Design Manual
(DENR Land Resources, Land Quality Section 2006 edition)
Where
Qp,o-za = Peak flow (10 year return and 24 hour duration)
CN = SCS Curve Number (from USDA SCS)
Rainfall�o-za= 10 year 24 hour rainfall (inches)
A = watershed area in acres
Channel Dimensions (typical)
Bankfull width = 35 feet
Bed width = 12 feet
Bankfull Depth = 4 feet
Bank slope ratio = 1:2.7
Bankfull Area = 92 ft2
Soils (for entire watershed)
99% Soil Group B, Cecil, with varying slopes
1% Soil Group C, Chewacala, Colfax, Appling (generally along lower stream banks)
Given
Rainfall�o-za= 5.04 inches
Rainfa112_24= 3.47 inches
(From NOAA HDSC Precipitation Frequency Estimates)
2of12

Addendum to PCN form:
SW Prong of Beaverdam Creek Stabilization
Stream calculations
1.0.1 Curve Number Calculation (CN)
A= Watershed area �1203 acres � 1.9 sq. miles
From USGS 7.5 topo map (Raleigh West)
Land use (estimated) _
95 % Single family housing well maintained %2 ac= 1155 acres
4 % Commercial = 49 acres
1 % Streambank = 12 acres
Area
Land Use Soil Grp CN (ac) CN*Area
1/2 acre homes well g5% B 70 1155.2 $0864
maintained
Commercial 4% B 92 48.64 4474.88
Stream banks 1% C 74 12.16 899.84
Totals 1216 86238.72
Curve Number Calculated 71
CN�,,,eighted = $6239/1216= 55.15 = 71
1.0.2 Watershed average slope (S)
Maximum length of watershed = 11933 feet
Maximum Elevation = 450 feet
Minimum Elevation = 248 feet
❑ Elevation = 202 feet
Average Watershed slope (S) = 202/11933 = 1.7% or 0.017 ft/ft
3of12

Addendum to PCN form:
SW Prong of Beaverdam Creek Stabilization
Stream calculations
1.1 Peak flow for 10 year 24 hour event
1.1.3 Average Runoff Depth (Q)
Rainfall�o-za= 5.04 inches
(From NOAA HDSC Precipitation Frequency Estimates)
Average Runoff Depth Q,o-za= 2•12 inches
(from interpolation from table 8.03 d for 5 inches of rainfall between
CNs 70 and 75)
1.1.4 Runoff Volume for 10 year 24 hour event
Estimated Runoff Volume = (2.12/12)*1216 = 215 acre feet
1.1.5 Peak Discharge for 10 year 24 hour Event (qp�o-za)
1.1.5.1 Initial Abstraction to Rainfall Ratio (la/P)
CNweighted — 7�
S = potential maximum retention = (1000/ CNWeighted)-10 = 4.08 II�.
P,o-za= 5.04 inches
Initial Abstraction = la= 0.2 S = 1.64 in.
la/P = 0.325
1.1.5.2 Time of Concentration (T�)
Using Segmental Method
Sheet Flow Segment
Surface Description = Bermuda grass
Manning's Coefficient (n) = 0.41
Segment Length (L) = 100 ft
Rainfa112_24(PZ_24) = 3.47 inches
Slope (S) = 0.017 ft/ft
T� = 0.007(nL)0�8= 0.37 hour= 22 minutes
P 0.5 50.4
2-24
4of12

Addendum to PCN form:
SW Prong of Beaverdam Creek Stabilization
Stream calculations
Shallow Concentrated Flow Segment
Surface Description = Well maintained lawns
Segment Length = 1000 ft
Slope (S) = 0.017 ft/ft
Average Velocity (V) = 2.6 fps (table 8.03�
T� = L = 0.107 hour= 6.4 minutes
3600 V
Channel Flow Segment
Trapezoidal Channel
Cross Sectional Flow Area (bankfull), a = 92 ft2
Wetted Perimeter, PW = 35 ft
Hydraulic Radius, r= a/ PW = 2.6 ft
Channel Slope (s) = 0.017 ft/ft
Manning's Coefficient (n) (using Cowan's w/ adjustments)
Basic n = 0.025
Irregularity adjustment= 0.005
Cross section adjustment= 0.005
Obstructions adjustment = 0.015
Vegetation adjustment = 0.005
Subtotal = 0.055
Meander adjustment= 0.00 ns
Final n value =0.055
Segment Length (L) = 10833 ft
Velocity (V) = 1.49r2�3s'�2 = 6.68 ft/s
n
T� = L = 0.45 hour= 27 minutes
3600 V
Total Time of Concentration (T�tota,) = 55.4 minutes = 0.92 hrs
1.1.5.3 Unit Peak Discharge (qu)
Type II rainfall distribution
la/P = 0.325
Totota�= 0.92 hl'S
Unit Peak Discharge (q„) = 300 csm/in (from table 8.03 k)
1.1.5.4 Pond and Swamp adjustment factor= 1 (no adjustment)
1.1.6 Peak Discharqe (qp,o-za) for 10 year 24 hour event
ap - qu * Am*Q* Fp �cfs)
qu = 300 csm/in
Am = 1.9 Sq ml
Q10-24- 2•�Z in
Fp = 1.0
Peak Discharge = ,o-za = 300* 1.9* 2.12* 1.0 = 1208 cfs
5of12

Addendum to PCN form:
SW Prong of Beaverdam Creek Stabilization
Stream calculations
1.2 Peak flow for 2 year 24 hour event
1.2.1 Average Runoff Depth (Q2_24) for 2 year 24 hour event
Rainfa112_24= 3.47 inches
(From NOAA HDSC Precipitation Frequency Estimates)
Average Runoff Depth Q2_24= 1.07 inches (interpolation from table 8.03 d)
1.2.2 Runoff Volume for 2 year 24 hour event
Estimated Runoff Volume = (1.07/12)*1216 = 108 acre feet
1.2.3 Peak Discharge for 2 year 24 hour Event (qp 2_24)
1.2.3.1 Initial Abstraction to Rainfall Ratio (la/P) for 2 year 24 hour event
CNweighted — 7�
S = potential maximum retention = (1000/ CNWeighted)-10 = 4.08
P2_24= 3.47 inches
Initial Abstraction = la= 0.2 S = 1.64
la/P = 1.16
1.2.3.2 Time of Concentration (T�) for 2 year 24 hour event
Using Segmental Method
Sheet Flow Segment
Surface Description = Bermuda grass
Manning's Coefficient (n) = 0.41
Segment Length (L) = 100 ft
Rainfa112_24(PZ_24) = 3.47 inches
Slope (S) = 0.017 ft/ft
T� = 0.007(nL)0�8= 0.37 hour= 22 minutes
P 0.5 50.4
2-24
Shallow Concentrated Flow Segment
Surface Description = Well maintained lawns
Segment Length = 1000 ft
Slope = 0.017 ft/ft
Average Velocity (V) = 2.6 ft/s (table 8.03�
T� = L = 0.107 hour= 6.4 minutes
3600 V
6of12

Addendum to PCN form:
SW Prong of Beaverdam Creek Stabilization
Stream calculations
Channel Flow Segment
Cross Sectional Flow Area (bankfull), a = 92 ft2
Wetted Perimeter, PW = 35 ft
Hydraulic Radius, r= a/ PW = 2.6 ft
Channel Slope (s) = 0.017 ft/ft
Manning's Coefficient (n) (using Cowan's w/ adjustments)
Basic n = 0.025
Irregularity adjustment= 0.005
Cross section adjustment= 0.005
Obstructions adjustment = 0.015
Vegetation adjustment = 0.005
Subtotal = 0.055
Meander adjustment= 0.00 ns
Final n value =0.055
Segment Length (L) = 10833 ft
Velocity = 1.49r2�3s'�2 = 6.68 ft/s
n
T� = L = 0.45 hour= 27 minutes
3600 V
Total Time of Concentration (T�tota,) = 55.4 minutes = 0.92 hrs
1.2.3.3 Unit Peak Discharge (qu) for 2 year 24 hour event
Type II rainfall distribution
la/P = 1.64
Totota�= 0.92 hl'S
Unit Peak Discharge = 220 csm/in (from table 8.03 k)
1.2.3.4 Pond and Swamp adjustment factor=1 (none)
1.2.4 Peak Discharqe (qp 2_24) for 2 year 24 hour event
ap - qu * Am*Q* Fp �cfs)
qu = 220 csm/in
Am = 1.9 Sq ml
Q = 1.07 in
Fp = 1.0
2_24 = 220* 1.9* 1.07* 1 = 417 cfs
V=Q/A
A = bankfull cross sectional area = 92 ft2
Velocity (estimated) = 417 /92 = 4.5 fps
7of12

Addendum to PCN form:
SW Prong of Beaverdam Creek Stabilization
Stream calculations
2.0 Values determined from NCSU Urban Stream Reqional Curves
Given
Watershed Area = 1.9 square miles
S = average slope of existing channel (ft/ft) = 0 .017 ft/ft
Urban stream
Typical bankfull channel size = 35 feet width at bankfull (Wb,�)
=12 feet width at streambed
= 4 feet Avg depth (Dbkf)
= Side slopes 1:2.7
Bankfull channel dimensions averaged from 10 cross sections surveyed within the project reach
Typical bankfull cross sectional area = 92.0 sq. feet
From urban curves by interpolation
Bankfull Area = 100-80 square feet
Bankfull Width = 30 feet
Bankfull Discharge = 440 cfs
From urban curves using equations
Bankfull Area = 91.58 square feet
Bankfull Width = 30.14 ft
Bankfull Discharge = 458.5 cfs
3.0 Basic values utilized for material selection (verified by HEC RAS analysis)
Bankfull Discharge = 460 cfs
Bankfull Area = 92 square feet
Bankfull Width = 35 feet
Bankfull Depth = 4 feet
Bankfull Velocity (average) = 5 fps
25 Year Event Velocity = 8.6 fps
8of12

Addendum to PCN form:
SW Prong of Beaverdam Creek Stabilization
Photo Loq
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2. Typical rip rap on banks
9of12

Addendum to PCN form:
SW Prong of Beaverdam Creek Stabilization
Photo Loq
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3. Active bank erosion
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4. View downstream from Upper Bridge
10 of 12

Addendum to PCN form:
SW Prong of Beaverdam Creek Stabilization
Photo Loq
:�: �� � ':.j � "�y �'���(�
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5. Depostional Bar above Lower Bridge
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6. Lower Bridge Scour
11 of 12

Addendum to PCN form:
SW Prong of Beaverdam Creek Stabilization
Photo Loq
IIII'111I��� w a�' ` ''� 'J � � � ;.
l. d k +t'�`�a�'±� y�- � ; 4'�.'..p`,`�'-.+•
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12 of 12

SW Prong of Beaverdam Creek Stabilization
Site Location Map
The site is located within a condominium development named Gardens on Glenwood in
Raleigh, NC. The site is just off of Glenwood Road near the intersection of Glenwood and
Oberlin Roads, adjacent to the Glenwood Village shopping center. The stream is the
Southwest Prong of Beaverdam Creek.
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lJS�/� United States A product ofthe National Custom Soil Resource
� Department of Cooperative Soil Survey,
Agriculture a joint effort of the United Report for
O n I ��� States Department of
`J I V Agriculture and other Wa ke C o u n ty
Federal agencies, State �
Natural agencies including the
Resources Agricultural Experiment N o rt h C a ro I i n a
Conservation Stations, and local
Service participants
Gardens on Glenwood Project
Area
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December 6, 2011

P reface
Soil surveys contain information that affects land use planning in survey areas. They
highlight soil limitations that affect various land uses and provide information about
the properties of the soils in the survey areas. Soil surveys are designed for many
different users, including farmers, ranchers, foresters, agronomists, urban planners,
community officials, engineers, developers, builders, and home buyers. Also,
conservationists, teachers, students, and specialists in recreation, waste disposal,
and pollution control can use the surveys to help them understand,protect,or enhance
the environment.
Various land use regulations of Federal, State, and local governments may impose
special restrictions on land use or land treatment. Soil surveys identify soil properties
that are used in making various land use or land treatment decisions.The information
is intended to help the land users identify and reduce the effects of soil limitations on
various land uses.The landowner or user is responsible for identifying and complying
with existing laws and regulations.
Although soil survey information can be used for general farm, local, and wider area
planning,onsite investigation is needed to supplement this information in some cases.
Examples include soil quality assessments (http://soils.usda.gov/sqin and certain
conservation and engineering applications. For more detailed information, contact
your local USDA Service Center(http://offices.sc.egov.usda.gov/locator/app?
agency=nres) or your NRCS State Soil Scientist (http://soils.usda.gov/contact/
state_officesn.
Great differences in soil properties can occur within short distances. Some soils are
seasonally wet or subject to flooding. Some are too unstable to be used as a
foundation for buildings or roads.Clayey orwet soils are poorly suited to use as septic
tank absorption fields. A high water table makes a soil poorly suited to basements or
underground installations.
The National Cooperative Soil Survey is a joint effort of the United States Department
of Agriculture and other Federal agencies, State agencies including the Agricultural
Experiment Stations, and local agencies. The Natural Resources Conservation
Service (NRCS) has leadership for the Federal part of the National Cooperative Soil
Survey.
Information about soils is updated periodically. Updated information is available
through the NRCS Soil Data Mart Web site or the NRCS Web Soil Survey. The Soil
Data Mart is the data storage site for the official soil survey information.
The U.S. Department ofAgriculture(USDA) prohibits discrimination in all its programs
and activities on the basis of race, color, national origin, age, disability, and where
applicable, sex, marital status, familial status, parental status, religion, sexual
orientation,genetic information, political beliefs, reprisal, or because all or a part of an
individual's income is derived from any public assistance program. (Not all prohibited
bases apply to all programs.) Persons with disabilities who require alternative means
2

for communication of program information (Braille, large print, audiotape, etc.)should
contact USDA's TARGET Center at [phone] (voice and TDD). To file a
complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400
Independence Avenue, S.W., Washington, D.C. 20250-9410 or call [phone]
(voice) or(202) 720-6382 (TDD). USDA is an equal opportunity provider and
employer.
3

Contents
Preface....................................................................................................................2
How Soil Surveys Are Made..................................................................................5
SoilMap..................................................................................................................7
SoilMap................................................................................................................8
Legend..................................................................................................................9
MapUnit Legend................................................................................................10
MapUnit Descriptions........................................................................................10
Wake County, North Carolina.........................................................................12
CoA—Congaree fine sandy loam, 0 to 2 percent slopes, frequently
flooded..................................................................................................12
UdD—Udorthents loamy, 0 to 15 percent slopes........................................13
References............................................................................................................14
4

How Soil Surveys Are Made
Soil surveys are made to provide information about the soils and miscellaneous areas
in a specific area.They include a description of the soils and miscellaneous areas and
their location on the landscape and tables that show soil properties and limitations
affecting various uses. Soil scientists observed the steepness, length, and shape of
the slopes; the general pattern of drainage; the kinds of crops and native plants; and
the kinds of bedrock.They observed and described many soil profiles.A soil profile is
the sequence of natural layers, or horizons, in a soil. The profile extends from the
surface down into the unconsolidated material in which the soil formed or from the
surface down to bedrock. The unconsolidated material is devoid of roots and other
living organisms and has not been changed by other biological activity.
Currently,soils are mapped according to the boundaries of major land resource areas
(MLRAs). MLRAs are geographically associated land resource units that share
common characteristics related to physiography, geology, climate, water resources,
soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically
consist of parts of one or more MLRA.
The soils and miscellaneous areas in a survey area occur in an orderly pattern that is
related to the geology, landforms, relief, climate, and natural vegetation of the area.
Each kind of soil and miscellaneous area is associated with a particular kind of
landform orwith a segment ofthe landform. By observing the soils and miscellaneous
areas in the survey area and relating their position to specific segments of the
landform,a soil scientist develops a concept,or model,of how they were formed.Thus,
during mapping, this model enables the soil scientist to predict with a considerable
degree of accuracy the kind of soil or miscellaneous area at a specific location on the
landscape.
Commonly, individual soils on the landscape merge into one another as their
characteristics gradually change. To construct an accurate soil map, however, soil
scientists must determine the boundaries between the soils. They can observe only
a limited number of soil profiles. Nevertheless, these observations, supplemented by
an understanding of the soil-vegetation-landscape relationship, are sufficient to verify
predictions of the kinds of soil in an area and to determine the boundaries.
Soil scientists recorded the characteristics of the soil profiles that they studied. They
noted soil color, texture, size and shape of soil aggregates, kind and amount of rock
fragments, distribution of plant roots, reaction, and other features that enable them to
identify soils. After describing the soils in the survey area and determining their
properties, the soil scientists assigned the soils to taxonomic classes (units).
Taxonomic classes are concepts. Each taxonomic class has a set of soil
characteristics with precisely defined limits. The classes are used as a basis for
comparison to classify soils systematically. Soil taxonomy, the system of taxonomic
classification used in the United States, is based mainly on the kind and character of
soil properties and the arrangement of horizons within the profile. After the soil
scientists classified and named the soils in the survey area, they compared the
5

Custom Soil Resource Report
individual soils with similar soils in the same taxonomic class in other areas so that
they could confirm data and assemble additional data based on experience and
research.
The objective of soil mapping is not to delineate pure map unit components; the
objective is to separate the landscape into landforms or landform segments that have
similar use and management requirements. Each map unit is defined by a unique
combination of soil components and/or miscellaneous areas in predictable
proportions. Some components may be highly contrasting to the other components of
the map unit. The presence of minor components in a map unit in no way diminishes
the usefulness or accuracy of the data. The delineation of such landforms and
landform segments on the map provides sufficient information forthe development of
resource plans. If intensive use of small areas is planned, onsite investigation is
needed to define and locate the soils and miscellaneous areas.
Soil scientists make many field observations in the process of producing a soil map.
The frequency of observation is dependent upon several factors, including scale of
mapping, intensity of mapping, design of map units, complexity of the landscape, and
experience of the soil scientist. Observations are made to test and refine the soil-
landscape model and predictions and to verify the classification of the soils at specific
locations. Once the soil-landscape model is refined, a significantly smaller number of
measurements of individual soil properties are made and recorded. These
measurements may include field measurements, such as those for color, depth to
bedrock, and texture, and laboratory measurements, such as those for content of
sand, silt, clay, salt, and other components. Properties of each soil typically vary from
one point to another across the landscape.
Observations for map unit components are aggregated to develop ranges of
characteristics forthe components. The aggregated values are presented. Direct
measurements do not exist for every property presented for every map unit
component. Values for some properties are estimated from combinations of other
properties.
While a soil survey is in progress, samples of some of the soils in the area generally
are collected for laboratory analyses and for engineering tests. Soil scientists interpret
the data from these analyses and tests as well as the field-observed characteristics
and the soil properties to determine the expected behavior of the soils under different
uses. Interpretations for all ofthe soils are field tested through observation ofthe soils
in different uses and under different levels of management. Some interpretations are
modified to fit local conditions, and some new interpretations are developed to meet
local needs. Data are assembled from other sources, such as research information,
production records, and field experience of specialists. For example, data on crop
yields under defined levels of management are assembled from farm records and from
field or plot experiments on the same kinds of soil.
Predictions about soil behavior are based not only on soil properties but also on such
variables as climate and biological activity. Soil conditions are predictable over long
periods of time, but they are not predictable from year to year. For example, soil
scientists can predict with a fairly high degree of accuracy that a given soil will have
a high water table within certain depths in most years, but they cannot predict that a
high water table will always be at a specific level in the soil on a specific date.
After soil scientists located and identified the significant natural bodies of soil in the
survey area, they drew the boundaries of these bodies on aerial photographs and
identified each as a specific map unit.Aerial photographs show trees, buildings,fields,
roads, and rivers, all of which help in locating boundaries accurately.
6

Soil Map
The soil map section includes the soil map for the defined area of interest, a list of soil
map units on the map and extent of each map unit, and cartographic symbols
displayed on the map. Also presented are various metadata about data used to
produce the map, and a description of each soil map unit.
7

Custom Soil Resource Report
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Custom Soil Resource Report
MAP LEGEND MAP INFORMATION
Area of Interest(AOI) f�j Very Stony Spot Map Scale: 1:697 if printed on A size(8.5" X 11")sheet.
Area of Interest(AOI) ,�, Wet Spot
The soil surveys that comprise your AOI were mapped at 1:15,840.
Soils � Other
Soil Map Units
Special Line Features Warning: Soil Map may not be valid at this scale.
Special Point Features _ Gully
�, Blowout Enlar ement of ma s be ond the scale of ma in can cause
Short Steep Slope g p y pp g
� Borrow Pit �� � misunderstanding of the detail of mapping and accuracy of soil line
.�.. Other placement.The maps do not show the small areas of contrasting
}.{ Clay Spot soils that could have been shown at a more detailed scale.
Political Features
♦ Closed Depression � Cities
�{ Gravel Pit Water Features Please rely on the bar scale on each map sheet for accurate map
„ Gravelly Spot Streams and Canals measUl'ements.
� Landfill Transportation Source of Map: Natural Resources Conservation Service
fti Lava Flow +++ Rails Web Soil Survey URL: http://websoilsurvey.nres.usda.gov
Coordinate System: UTM Zone 17N NAD83
,y�, Marsh or swamp � Interstate Highways
� Mine or Quarry .-- US Routes This product is generated from the USDA-NRCS certified data as of
the version date(s)listed below.
p Miscellaneous Water Major Roads
p Perennial Water fv Local Roads Soil Survey Area: Wake County, North Carolina
Survey Area Data: Version 9,Mar 20,2007
�. Rock Outcrop
+ Saline Spot Date(s)aerial images were photographed: 6/18/2006
Sandy Spot
- - The orthophoto or other base map on which the soil lines were
= Severely Eroded Spot compiled and digitized probably differs from the background
imagery displayed on these maps.As a result,some minor shifting
� Sinkhole of map unit boundaries may be evident.
�s Slide or Slip
� Sodic Spot
:, Spoil Area
� Stony Spot

Custom Soil Resource Report
Map Unit Legend
Wake County,North Carolina(NC183)
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
CoA Congaree fine sandy loam,0 to 2 percent 0.0 2.5°k
slopes,frequently flooded
UdD Udorthents loamy,0 to 15 percent slopes 0.6 97.5°k
Totals for Area of Interest 0.6 100.0%
Map Unit Descriptions
The map units delineated on the detailed soil maps in a soil survey represent the soils
or miscellaneous areas in the survey area. The map unit descriptions, along with the
maps, can be used to determine the composition and properties of a unit.
A map unit delineation on a soil map represents an area dominated by one or more
major kinds of soil or miscellaneous areas. A map unit is identified and named
according to the taxonomic classification of the dominant soils. Wthin a taxonomic
class there are precisely defined limits forthe properties ofthe soils.On the landscape,
however,the soils are natural phenomena, and they have the characteristic variability
of all natural phenomena. Thus, the range of some observed properties may extend
beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic
class rarely, if ever, can be mapped without including areas of other taxonomic
classes. Consequently, every map unit is made up of the soils or miscellaneous areas
for which it is named and some minor components that belong to taxonomic classes
other than those of the major soils.
Most minor soils have properties similar to those of the dominant soil or soils in the
map unit, and thus they do not affect use and management. These are called
noncontrasting, or similar, components. They may or may not be mentioned in a
particular map unit description. Other minor components, however, have properties
and behavioral characteristics divergent enough to affect use orto require different
management.These are called contrasting,ordissimilar,components.They generally
are in small areas and could not be mapped separately because of the scale used.
Some small areas of strongly contrasting soils or miscellaneous areas are identified
by a special symbol on the maps. If included in the database for a given area, the
contrasting minor components are identified in the map unit descriptions along with
some characteristics of each. A few areas of minor components may not have been
observed, and consequently they are not mentioned in the descriptions, especially
where the pattern was so complexthat it was impractical to make enough observations
to identify all the soils and miscellaneous areas on the landscape.
The presence of minor components in a map unit in no way diminishes the usefulness
or accuracy of the data. The objective of mapping is not to delineate pure taxonomic
classes but ratherto separate the landscape into landforms or landform segments that
have similar use and management requirements. The delineation of such segments
on the map provides sufficient information for the development of resource plans. If
intensive use of small areas is planned, however, onsite investigation is needed to
define and locate the soils and miscellaneous areas.
10

Custom Soil Resource Report
An identifying symbol precedes the map unit name in the map unit descriptions. Each
description includes general facts about the unit and gives important soil properties
and qualities.
Soils that have profiles that are almost alike make up a soil series. Except for
differences in texture of the surface layer, all the soils of a series have major horizons
that are similar in composition, thickness, and arrangement.
Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity,
degree of erosion, and other characteristics that affect their use. On the basis of such
differences, a soil series is divided into soil phases. Most of the areas shown on the
detailed soil maps are phases of soil series. The name of a soil phase commonly
indicates a feature that affects use or management. For example, Alpha silt loam, 0
to 2 percent slopes, is a phase of the Alpha series.
Some map units are made up of two or more major soils or miscellaneous areas.
These map units are complexes, associations, or undifferentiated groups.
A complex consists of two or more soils or miscellaneous areas in such an intricate
pattern or in such small areas that they cannot be shown separately on the maps.The
pattern and proportion of the soils or miscellaneous areas are somewhat similar in all
areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example.
An association is made up of two or more geographically associated soils or
miscellaneous areas that are shown as one unit on the maps. Because of present or
anticipated uses of the map units in the survey area, it was not considered practical
or necessary to map the soils or miscellaneous areas separately. The pattern and
relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha-
Beta association, 0 to 2 percent slopes, is an example.
An undifferentiated group is made up of two or more soils or miscellaneous areas that
could be mapped individually but are mapped as one unit because similar
interpretations can be made for use and management. The pattern and proportion of
the soils or miscellaneous areas in a mapped area are not uniform. An area can be
made up of only one of the major soils or miscellaneous areas, or it can be made up
of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example.
Some surveys include miscellaneous areas. Such areas have little or no soil material
and support little or no vegetation. Rock outcrop is an example.
11

Custom Soil Resource Report
Wake County, North Carolina
CoA—Congaree fine sandy loam, 0 to 2 percent slopes,frequently flooded
Map Unit Setting
Elevation:200 to 1,400 feet
Mean annual precipitation: 37 to 60 inches
Mean annual airtemperature: 59 to 66 degrees F
Frost-free period:200 to 240 days
Map Unit Composition
Congaree and similar soils: 80 percent
Minor components: 5 percent
Description of Congaree
Setting
Landform: Flood plains
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Loamy alluvium derived from igneous and metamorphic rock
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Moderately well drained
Capacity of the most limiting layer to transmit water(Ksat): Moderately high to high
(0.57 to 1.98 in/hr)
Depth to water table:About 30 to 48 inches
Frequency of flooding: Frequent
Frequency of ponding: None
Available water capacity: Moderate (about 8.0 inches)
Interpretive groups
Land capability(nonirrigated): 3w
Typical profile
0 to 10 inches: Fine sandy loam
10 to 40 inches: Loam
40 to 80 inches: Loamy fine sand
Minor Components
Wehadkee, undrained
Percent of map unit: 5 percent
Landform: Depressions on flood plains
Down-slope shape: Concave
Across-slope shape: Linear
12

Custom Soil Resource Report
UdD—Udorthents loamy, 0 to 15 percent slopes
Map Unit Setting
Elevation:200 to 1,400 feet
Mean annual precipitation: 37 to 60 inches
Mean annual airtemperature: 59 to 66 degrees F
Frost-free period:200 to 240 days
Map Unit Composition
Udorthents, loamy, and similar soils: 85 percent
Description of Udorthents, Loamy
Setting
Landform: Hillslopes on ridges
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Side slope
Down-slope shape: Linear
Across-slope shape: Convex
Parent material: Loamy and clayey mine spoil or earthy fill derived from igneous,
metamorphic and sedimentary rock
Properties and qualities
Slope: 0 to 15 percent
Depth to restrictive feature: More than 80 inches
Drainage class:Well drained
Capacity of the most limiting layer to transmit water(Ksat):Very low to high (0.00 to
1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water capacity: Moderate (about 8.4 inches)
Interpretive groups
Land capability(nonirrigated): 7e
Typical profile
0 to 80 inches: Sandy clay loam
13

References
American Association of State Highway and Transportation Officials(AASHTO).2004.
Standard specifications for transportation materials and methods of sampling and
testing. 24th edition.
American Society for Testing and Materials (ASTM). 2005. Standard classification of
soils for engineering purposes. ASTM Standard D2487-00.
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of
wetlands and deep-water habitats of the United States. U.S. Fish and Wldlife Service
FWS/OBS-79/31.
Federal Register. July 13, 1994. Changes in hydric soils of the United States.
Federal Register. September 18, 2002. Hydric soils of the United States.
Hurt,G.W.,and L.M.Vasilas,editors.Version 6.0,2006.Field indicators of hydricsoils
in the United States.
National Research Council. 1995. Wetlands: Characteristics and boundaries.
Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S.
Department of Agriculture Handbook 18. http://soils.usda.gov/
Soil Survey Staff. 1999. Soil taxonomy:A basic system of soil classification for making
and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service,
U.S. Department of Agriculture Handbook 436. http://soils.usda.gov/
Soil Survey Staff. 2006. Keys to soil taxonomy. 10th edition. U.S. Department of
Agriculture, Natural Resources Conservation Service. http://soils.usda.gov/
Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and
Delaware Department of Natural Resources and Environmental Control, Wetlands
Section.
United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of
Engineers wetlands delineation manual. Waterways Experiment Station Technical
Report Y-87-1.
United States Department of Agriculture, Natural Resources Conservation Service.
National forestry manual. http://soils.usda.gov/
United States Department of Agriculture, Natural Resources Conservation Service.
National range and pasture handbook. http://www.glti.nres.usda.gov/
United States Department of Agriculture, Natural Resources Conservation Service.
National soil survey handbook, title 430-VI. http://soils.usda.gov/
United States Department of Agriculture, Natural Resources Conservation Service.
2006. Land resource regions and major land resource areas of the United States,the
Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296.
http://soils.usda.gov/
14

Custom Soil Resource Report
United States Department of Agriculture, Soil Conservation Service. 1961. Land
capability classification. U.S. Department of Agriculture Handbook 210.
15

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WITHOUT SCOURSTOP � �
PLANTING ZONE 1 Neuse River Buffer dimensions � U ��
� PLANTING ZONE 2 Zone 1 = 30 horizontal feet from channel bank � � � `�' �
CONSTRUCTION ACCESS Zone 2 = 20 horizontal feet from Zone 1 � v N N �
TREE PROTECTION ZONE �
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TOE OF SLOPE CN � R �
EDGE OF TERRACE
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0 ELECTRICAL LINE �
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NOTE A: � �; v � °
NOTE C: � N �; �
1. EXISTING BOULDER AND RIP RAP FILL TO BE REMOVED. TERRAGUARD 44P � °
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SEE NOTE D 1. SCOURSTOP MATERIAL IS AVAILABLE FROM HANES GEO � � d �
2. ALL SOIL AND FILL MATERIAL TO CONSIST OF COMPONENTS(WINSTON SALEM, NC). PLATES ARE 4 X 4 FEET AND � � � R
APPROX.55% EARTH AND 35%GRAVEL AND NOT TO TOP OF BANK MAY BE SAWN TO FIT SITUATION. � � ,a �
EXCEED10%COBBLE. � L
N �
2. INSTALLATION IS PER MANUFACTURERS SPECIFICATIONS FOR NON � •°� m
3. REPAIRED VERTICAL PORTION OF STREAM BANK TO BE COMPACTED FILL III-II II-I COHESIVE SOIL.WWW.SCOURSTOP.COM � � L .�
PLANTED WITH BLACK WILLOW(SALIX NIGRA) LIVE SEE NOTE _ (� � d R
STAKES AT A DENSITY OF ONE PER 4 SQ. FT. �- 3. SCOURSTOP IS TO BE INSTALLED 4 FEET HIGH STARTING AT � �
STREAM BED FOR ENTIRE LENGTH OF DESIGNATED REPAIR AREA.
4. REPAIRED TOP OF BANK TO BE PLANTED WITH 3 2 �I� SCOURSTOP ANCHORING IS PER MANUFACTURERS SPECIFICATIONS. � �
GALLON SYCAMORE(PLATANUS OCCIDENTALIS)SPACED SEE NOTE C a
EQUALLY ALONG BANK AND JUST BACK FROM THE = 4. PLATES SHOULD BE OVERLAPPED WITH THE DOWNSTREAM PLATE
TRENCHED TRM. II-II II IN TOWARDS THE BANK. PLATES ARE JOINED WITH S.S.#12 2 INCH �
TYPICAL "BURRITO" SELF TAPPING SCREWS AT 0.4 FOOT SPACING. A 0.5 FOOT
NOTE B: SEE NOTE 8 q q' OVERLAP IS REQUIRED. Q �
1 1 5. ALL MATERIALS(EXCEPT SCREWS) REQUIRED TO BE PROVIDED BY a �
1. A"BURRITO" IS MADE OF A SOIL(PER NOTE A)WRAPPED SECTIONA A� SCOURSTOP MANUFACTURER. � �
LOG OF COIR GEOTEXTILE. COIR MUST BE OF 700 GMS � � 1
OR HEAVIER WITH 50%OPEN AREA. NOTE D: � m �
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2. "AT LEAST TWO STACKED"BURRITOS"TO BE USED FOR E X I S T I N G S T R E A M B A N K 1. TURF REINFORCMENT MAT IS TO BE TERRAGUARD 44P BY � � U
THIS BANK REPAIR. EACH"BURRITO" IS A LOG OF NO HANES GEO COMPONENTS,WINSTON SALEM, NC. � O
MORE THAN 3 FEET IN DIAMETER. MORE SMALLER TERRAGUARD 44P
BURRITOS MAY BE USED IF IT IS MORE COST EFFECTIVE.
LENGTH IS DETERMINED BY BANK CONDITIONS. SCOURSTOP 2. INSTALLATION IS PER MANUFACTURERS SPECIFICATIONS
SEE NOTE C FOR NON COHESIVE SOIL. SEE ADDITIONAL DETAILS ON
3. EACH BURRITO IS SECURELY WRAPPED IN COIR A� BRIDGE MATTING DETAIL SHEETS.ALL APPLY HERE AS WELL. .
GEOTEXTILE WITH A MINIMUM OF 12 INCHES OVERLAP IN FOOTER 3. TRM FULLY WRAPS THE BURRITOS AND MUST BE •
WRAPPING. SECURELY FASTENED AS 6 INCH INTERVALS �
ALONG THE SEAM AND AT EACH END. PARTIALLY INSTALLED PRIOR TO INSTALLING THE Z •
BURRITOS.
_ �
4. EACH BURRITO IS ANCHORED TO THE BANK WITH 1000# COMPACTED FILL �
CAPACITY DUCKBILL ANCHORS, DRIVEN TO A MINIMUM SEE NOTEA ROADWAY 4. TRM SHOULD EXTEND NO LESS THAN 2 FEET UP THE •
EXISTING BANK BEFORE WRAPPING ALONG THE STREAM W •
DEPTH OF 1.5 FT. INTO THE EXISTING BANK. ANCHORS A BED AND UP AND OVER THE BURRITO INSTALLATION. W
ARE SPACED AT 3 FOOT INTERVALS HORIZONTALLY � Z �
STARTING 1.5 FEET IN FROM THE END. VERTICAL PLAN VIEW TYPICAL "BURRITO" 5. TRM MUST EXTEND BEYOND TOP OF REPAIR BY 2 FEET
SPACING IS 1.5 FEET STARTING 1 FOOT FROM THE SEE NOTE 8 AND BE STAPLED AND TRENCHED AT THE TOP EDGE.
�
STREAM BED. AT LEAST ONE ROW OF ANCHORS PER � ;
BURRITO. ANCHORS TO HAVE AN 8 INCH DIA. 12 GUAGE 6. SOIL AND BOTH PERMANENT AND TEMPORARY GRASS Z
STEEL PLATE AT THE CLAMPING END TO SPREAD THE W
ANCHOR LOAD. SEED MUST BE SOWN ON EXPOSED EDGES OF BURRITOS
PRIOR TO ANCHORING THE TRM.
5. SPACE BETWEEN BURRITOS IS TO BE FILLED AS PER DETAIL OF UPPER 7. AT TOP OF REPAIRED BANK, TRM MUST BE FULLY
NOTE A.
COVERED WITH SOIL TO NO MORE THAN Yz INCH AND w �
BRID GE REPAIR ADDITIONALLY SEEDED. O Q
8. TRM OVERLAPS ALONG THE STREAM MUST HAVE z ;°
UPSTREAM MATERIAL IN FRONT. OVERLAP OF AT LEAST 1 �
FOOT. p
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TERRAGUARD TRM INSTALLATION NOTES:
TRENCHED AND STAPLED I 1. TURF REINFORCMENT MAT IS TO BE TERRAGUARD 44P AND
PER MAN FACTURERS SPECS. TERRAGUARD DC BY HANES GEO COMPONENTS, WINSTON
1.5 FEET SALEM, NC.
TERRAGUARD DC TRM 2• INSTALLATION IS PER MANUFACTURERS SPECIFICATIONS
SEE INSTALLATION NOTES ! FOR NON COHESIVE SOIL. STAPLES MUST BE "U" SHAPED AT
LEAST#8WIRE GAUGE AND 10 INCHES LONG OR LONGER.
TYP/CAL 2x2x1.5
OAK STAKE 3. TERRAGUARD DC IS TRENCHED AND STAPLED AT TOP EDGE
WITH AND UNDER THE TRENCHED AND STAPLED TERRAGUARD
GALVANIZED 44P AT THE LOWER END.
ROOF/NG NA/L
4. LOWER EDGE OF TERRAGUARD 44P IS BELOW WATER LEVEL
IN THE STREAM AND MUST BE TRENCHED AND STAKED WITH
SHARPENED 2 X 2 IN X 1.5 FEET OAK STAKES WITH A
GALVINIZED ROOFING NAIL AT TOP. STAKE SPACING IS 1
FOOT. STAKES MUST BE FULLY DRIVEN INTO BED OR
TRIMED.
� LOW FLOW
TERRAGUARD 44P TRM WATER LINE 5. BANKS STEEPER THAN1.0 VERTICAL TO 1.5 HORIZONTAL
SEAM WITH TOP OF MAY BE GRADED TO 1:1.5 PRIOR TO MATTING.
TERRAGUARD DC 6. SOIL PREPARATION AND BOTH PERMANENT AND
PER MFRS SPECS. � TEMPORARY GRASS SEED MUST BE SOWN ON BANKS PRIOR
TO INSTALLING THE TRM. SEE MFGRS. SPEC. AND
VEGETATION SPECIFICATION.
STREAMBED
7. SOIL OVERFILL IS REQUIRED ABOVE THE STREAM
WATERLINE ALONG WITH ADDITIONAL SEEDING.
OVERFILLED AREAS REQUIRE STRAW COVER.
TYPICAL BANK STABILIZA TION $ MAT RIA RON OP O ERLAP OF AT L AST FOOT.PSTREAM
INSTALLA TION WITHO UT SCO URSTOP
REV. DATE DRWN CHKD NOTES P�epa�edfo� Gardens on Glenwood
� 11/10/11 MBS GRJ Initial Design ��
1�� Southwest Prong of Beaverdam Creek Matting without Scale n/a
ENGINEERING snt. 7
.. � , , . �. , Raleigh, Wake County,NC Scourstop of �� �-2

SCOURSTOP INSTALLATION NOTES:
1. SCOURSTOP MATERIAL IS AVAILABLE FROM HANES GEO
COMPONENTS(WINSTON SALEM,NC).PLATES ARE 4 X 4 FEET AND
MAY BE SAWN TO FIT SITUATION.
2. INSTALLATION IS PER MANUFACTURERS SPECIFICATIONS FOR NON
COHESIVE SOIL.WVWV.SCOURSTOP.COM
TRENCHED AND STAPLED 3. SCOURSTOP IS TO BE INSTALLED 4 FEET HIGH STARTING AT
STREAM BED FOR ENTIRE LENGTH OF DESIGNATED REPAIR AREA.
PER I STALLATION NOTES ANCHORING IS PER MANUFACTURERS SPECIFICATIONS.
4. PLATES SHOULD BE OVERLAPPED WITH THE DOWNSTREAM PLATE
TERRAGUARD DC TRM TOWARDS THE BANK. PLATES ARE JOINED WITH S.S.#12 2 INCH
SEE INSTALLATION NOTES SELF TAPPING SCREWS AT 0.4 FOOT SPACING. A 0.5 FOOT
OVERLAP IS REQUIRED.
5. ALL MATERIALS(EXCEPT SCREWS)REQUIRED TO BE PROVIDED BY
SCOURSTOP INSTALLED SCOURSTOP MANUFACTURER.
FROM BED OF STREAM
4 FEET TALL ALONG BANK TERRAGUARD TRM/NSTALLATION NOTES:
SEE INSTALLATION NOTES 1. TURF REINFORCMENT MAT IS TO BE TERRAGUARD 44P AND
TERRAGUARD DC BY HANES GEO COMPONENTS,WINSTON SALEM,
NC.
� 2. INSTALLATION IS PER MANUFACTURERS SPECIFICATIONS FOR NON
COHESIVE SOIL. STAPLES MUST BE"U"SHAPED AT LEAST#8WIRE
TERRAGUARD 44P TRM LOW FLOW WATER LINE GAUGE AND 10 INCHES LONG OR LONGER.
SEAM WITH TOP OF 3. TERRAGUARD DC IS TRENCHED AND STAPLED AT TOP EDGE AND
TERRAGUARD DC TO BE UNDER THE TRENCHED AND STAPLED TERRAGUARD 44P AT THE
TRENCHED AND STAPLED � LOWER END.
PER INSTALLATION NOTES / 1 4. LOWER EDGE OF TERRAGUARD 44P IS BELOW WATER LEVEL IN
STREAMBED � THE STREAM AND MUST BE TRENCHED AND STAKED WITH
SHARPENED 2 X 2 IN X 1.5 FEET OAK STAKES WITH A GALVINIZED
1.5 FEET ROOFING NAIL AT TOP. STAKE SPACING IS 1 FOOT. STAKES MUST
BE FULLY DRIVEN INTO BED OR TRIMED AFTER BEING FULLY
I DRIVEN.
i
5. BANKS STEEPER THAN1.0 VERTICAL TO 1.5 HORIZONTAL MAY BE
TYPICAL 2x2x1.5 GRADED TO 1.5 H:1V PRIOR TO MATTING.
OAK STAKE
WITH 6. SOIL PREPARATION AND BOTH PERMANENT AND TEMPORARY
TYPICAL BANK STABILIZATION GALVANIZED GRASS SEED MUST BE SOWN ON BANKS PRIOR TO INSTALLING THE
ROOF/NG NAIL
TRM. SEE MANUFACTURERS SPECIFICATION AND VEGETATION
INSTALLATION WITH SCOURSTOP SPECIFICATION.
7. SOIL OVERFILL IS REQUIRED ABOVE THE STREAM WATERLINE
ALONG WITH ADDITIONAL SEEDING. OVERFILLED AREAS REQUIRE
STRAW.
8. TRM OVERLAPS ALONG THE STREAM MUST HAVE UPSTREAM
MATERIAL ON TOP. OVERLAP OF AT LEAST 1 FOOT.
REV. DATE DRWN CHKD NOTES
� 11/10/11 MBS GRJ Initial Design
P�epa�ed fo� Gardens on Glenwood
l��• Scale n/a
Southwest Prong of Beaverdam Creek Matting with
ENGINEERING snt. $
•_ . . . . .. . Raleigh, Wake County,NC Scourstop of 10 �-3

NOTCH IN BASIN FRONT 2 FT. WIDE AND STACKED STONE/NSTALLAT/ON NOTES:
SCOURSTOP/NSTALLAT/ON NOTES: FLUSH WITH THE INVERT OF OUTFALL
1. STACKED STONE COLOR MUST BE APPROVED THE LANDOWNER
1. SCOURSTOP MATERIAL IS AVAILABLE FROM HANES GEO 2. STONE THICKNESS WILL RANGE FROM 5 TO 7 INCHES.
COMPONENTS(WINSTON SALEM,NC).PLATES ARE 4 X 4 � `
�
FEET AND MAY BE SAWN TO FIT SITUATION. � � 3. STACKED STONE MUST BE SIZED TO RESIST FROST HEAVING.
i
� BASIN MUST EXTEND AROUND SIDES AND TAPER TO LEVEL WITH
2. INSTALLATION IS PER MANUFACTURERS SPECIFICATIONS �i THE TOP OF THE RCP OUTFALL DEVICE AND SOIL AT THE UPPER
FOR NON COHESIVE SOIL. WWW.SCOURSTOP.COM =__— — J� ENDS.
3. SCOURSTOP IS TO BE INSTALLED 4 FEET HIGH STARTING AT 4. FRONT EDGE OF BASIN WILL BE AT LEAST 2 FEET WIDE. FIRST STEP
STREAM BED FOR ENTIRE LENGTH OF DESIGNATED REPAIR STONE SHOULD BE FLUSH WITH THE INVERT OF THE OUTFALL.
AREA. ANCHORING IS PER MANUFACTURERS FRONT VIEW OFSPILL BASIN 5. NON WOVEN GEOTEXTILE(4�oz/sq yd)IS TO BE INSTALLED UNDER
SPECIFICATIONS.
THE BASIN.EXTENDING TWO FEET BEHIND FRONT EDGE OF
OUTFALL. ANCHORING IS PER MANUFACTURERS SPECIFICATIONS.
4. PLATES SHOULD BE OVERLAPPED WITH THE DOWNSTREAM .
PLATE TOWARDS THE BANK. PLATES ARE JOINED WITH 6. STONE IS TO BE STACKED IN A NATURAL FASHION AND HELD IN
S.S.#12 2 INCH SELF TAPPING SCREWS AT 0.4 FOOT PLACE WITH PERMANENT WATERPROOF BROWN ADHESIVE OR
SPACING. A 0.5 FOOT OVERLAP IS REQUIRED. �S"RCP STORMWATER OUTFALL COLOR MATCHED WATERPROOF MORTAR.
REPA/RED GROUND TYPICAL 7. EARTH CONTOUR WILL BE RETURNED TO NORMAL UPON
5. ALL MATERIALS(EXCEPT SCREWS)REQUIRED TO BE �SURFACE COMPLETION AND WILL COVER THE ENTIRE RCP OUTFALL..
PROVIDED BY SCOURSTOP MANUFACTURER.
TERR.4GUARD TRM/NSTALLATION NOTES:
1. TURF REINFORCMENT MAT IS TO BE TERRAGUARD 44P AND BY ADDITIONAL
HANES GEO COMPONENTS,WINSTON SALEM,rvC. TERRAGUARD 44P TRM
2. INSTALLATION IS PER MANUFACTURERS SPECIFICATIONS FOR NON
COHESIVE SOIL. STAPLES MUST BE"U"SHAPED AT LEAST#BWIRE SCOURSTOP
GAUGE AND 10 INCHES LONG OR LONGER. �
. ',�,s,r-a
��, '�
3. TERRAGUARD 44P IS TRENCHED AND STAPLED AT TOP EDGE.
CURRENT
4. LOWER EDGE OF TERRAGUARD 44P IS BELOW WATER LEVEL IN GROUND
THE STREAM AND MUST BE TRENCHED AND STAKED WITH SURFACE
SHARPENED 2 X 2 IN X 1.5 FEET OAK STAKES WITH A GALVINIZED
ROOFING NAIL AT TOP. STAKE SPACING IS 1 FOOT. STAKES MUST
BE FULLY DRIVEN INTO BED OR TRIMED. TERRAGUARD 44P TRM ����
5. BANKS STEEPER THAN1.0 VERTICAL TO 1.5 HORIZONTAL MAY BE GEO TEXTILE
GRADED TO 1:1.5 PRIOR TO MATfING. GROUND THIS AREA
O"O"O"(�
SURFACE WATER �°°°�°g WILL HAVE
6. SOIL PREPARATION AND BOTH PERMANENT AND TEMPORARY J �°o°o°o°o TERRAGUARD 44P
GRASS SEED MUST BE SOWN ON BANKS PRIOR TO INSTALLING THE � o°°o°°o°°o°° UNDERNEATH
TRM. SEE MFGRS.SPEC.AND VEGETATION SPECIFICATION. TERRAGUARD 44P TRM INSTALLEDJ �o�o�o^°
0 0 o FROM THE BANK
7. SOIL OVERFILL IS REQUIRED FOR ALL MATTING ABOVE THE FROM THE BANK STABLIZATION TASK Q0000 STABILIZATION TASK
STREAM WATERLINE ALONG WITH ADDITIONAL SEEDING. �0000
OVERFILLED AREAS REQUIRE STRAW COVER.
8. TRM OVERLAPS ALONG THE STREAM MUST HAVE UPSTREAM PLAN VIEW OF OUTFALL
MATERIAL ON TOP. OVERLAP OF AT LEAST 1 FOOT.
SIDE VIEW OF OUTFALL
DETAIL OF STORMWATER
O UTFALL BEA UTIFICATION
REV. DATE DRWN CHKD NOTES P�epa�edfo� Gardens on Glenwood
� 11/10/11 MBS GRJ Initial Design �
B��� Scale n/a
Southwest Prong of Beaverdam Creek Outfall
ENGINEERING snt. 9
.. , , � . „ , Raleigh, Wake County,NC Modifications of 10 �-4

TYPICAL PROPOSED PUMP AROUND
(Not to Scale)
ENTIRE PROJECT LENGTH (395')
ACTIVE CONSTRUCTION AREA (100' MAX)
LENGTH AND LOCATION VARY THROUGHOUT PROJECT
IMPERVIOUS DIKE
IMPERVIOUS DIKE (SEE DETAIL)
MAIN PUMP OUTFALL ONTO (SEE DETAIL)
@ REMOVABLE CLASS'B'STONE
� BEDROCK OR EQUIVALENT
�
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� =ii � � � � �
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DEWATERING STRUCTURE �
(SEE DETAIL) � ��
SEDIMENT PUMP
��
�� MAIN PUMP
STREAM BANK
EXISTING GROUND PUMP HOSE
SEDIMENT FILTER BAG
FILTER FABRIC CLASS B STONE 8"THICK STREAM
LINING TRENCH
� MINIMUM LENGTH=BAG LENGTH+3 FEET �
NOTES: NOTES:
AT THE ENGINEER'S DISCRETION,ALTERNATE DEWATERING STRUCTURES MAY TYPICAL IMPERVIOUS DIKE,SAND BAGS ENCLOSED IN
BE USED(i.e.SEDIMENT TANKS,FILTER BOX,STRAW BALE/SILT FENCE PIT). IMPERVIOUS FABRIC ON ALL SIDES. FABRIC TO BE
HOWEVER,REGARDLESS OF THE DEWATERING STRUCTURE USED,ALL MUST SEALED BY WEIGHT TO STREAM BED AND BANKS
BE SIZED AND OPERATED TO ALLOW ALL PUMPED WATER TO BE FILTERED AT THE ENGINEER'S DISCRETION,ALTERNATE IMPERVIOUS
STRUCTURES MAY ALLOWED
TO PREVENT SEDIMENTS FROM ERODING AND MOVING OFF SITE.
REV. DATE DRWN CHKD NOTES P�epa�edfo� Gardens on Glenwood
� 12/06/11 MBS GRJ Initial Design �� Scale n/a
1�� Southwest Prong of Beaverdam Creek Pump Around
ENGINEERING snt. �O
.. � , , . �. , Raleigh, Wake County,NC Detail of �� �-5