20051701 Ver 1_Stormwater Info_20110829

WITHERS ?" RAVEN EL
ENGINEERS PLANNERS I SURVEYORS
C? - r l D1
August 26, 2011
Annette Lucas
NCDENR-DWQ
Central Office
512 N. Salisbury Street
9th Floor
Raleigh, NC 27602
RE: Brighton Forest Subdivision
W&R No. 2020179.30
Dear Annette:
Please find attached one (1) copy of the proposed storm drainage construction drawings for Brighton
Forest Phase 6B. Please note this construction drawing has been approved by the Town of Fuquay-
Varina and is under the Wake County Sedimentation and Erosion Control approval so that a grading plan
can be issued. During the County's review, they requested that we obtain DWQ approval for the level
spreaders as shown on Sheets 4 and 7 of the attached plan since a bypass channel was required by
them in accordance with current DWQ requirements.
Also attached are copies of the level spreader design supplement sheets from DWQ, calculations
regarding the proposed stormwater bypass channel and executed Operations and Maintenance
Agreements for the two level spreaders in question.
Please note that this overall project has been slowed based on the economic conditions over the last
several years and has been completely phased to smaller sections. There is a 401 issued for this project
dated October 28, 2005 as DWQ project number 05-1701. The permitted wetlands impacts were
completed within the permit time limitations. Subsequent to that, additional phases have been and will be
developed that will discharge into adjacent Neuse River riparian buffer areas. We have also attached a
copy of the actual 401 Certification with the stormwater diffuse flow condition highlighted.
Please advise if you require additional information or have any questions concerning this request.
Sincerely,
WITHE S 6c VENEL, INC.
YV
im Cancc: Jack Morisey, Brighton Forest, Inc.
Neil Matthews, Brighton Forest, Inc.
Betsy Pearce, Wake County
Jennifer Mitchell, Wake County
DWQ Acknowledgement of Receipt:
By
9@:;1-Eq0\V
AUG 2 9 2
011
D1NR- WAFER QUALITY
1NETLMDSAND STORMWATER ppAWA
Date
111 MacKenan Drive I Cary, NC 275111 tel.: [phone] fax: [phone] www.withersravenel.com License No. C-0832
1410 Commonwealth Drive Suite 1011 Wilmington, NC 28403 tel: [phone] fax: [phone]
7011 Albert Pick Road Suite G I Greensboro, NC 27409 1 tel: [phone] fax: [phone]
o?ot W A rFgOG Michael F. Easley, Governor
William G. Ross Jr., Secretary
r North Carolina Department of Environment and Natural Resources
-l
O ? Alan W. Klimek, P.E. Director
Division of Water Quality
October 28, 2005
DiQ? Project # 05-1701
In E19, E ? v k Wake County
Mr. Tommy Fonville NOV 2 - 2005 V
Community Properties
1000 St. Albans Drive, Suite 400
Raleigh, NC 27607 gy trt?u?e,?a1 Colls?ants, PA
Subject Property: Brighton Forest Subdivision
Ut to Middle Creek [030402, 27-43-15-(4), C, NSW]
Approval of 401 Water Quality Certification with Additional Conditions
Dear Mr. Fonville:
You have our approval, in accordance with the attached conditions and those listed below, to place fill
within or otherwise impact 0.34 acres of wetland, 343 linear feet of stream (249 LF feet perennial, 72 LF
intermittent and 22 LF perennial-temporary impacts) and 31,705 square feet (ft) of protected riparian
buffers (18,157 square feet Zone 1, and 13,548 square feet Zone 2) for the purpose of constructing roads
and utility infrastructure within the proposed residential subdivision at the subject property, as described
within your application dated September 6, 2005 and received by the N.C. Division of Water Quality
(DWQ) on September 6, 2005, with additional information received by the DWQ on October 18, 2005.
After reviewing your application, we have decided that the impacts are covered by General Water Quality
Certification Number(s) 3402 and 3374 (GC3402 and GC3374). These Certification(s) allow you to use
Nationwide. Permit(s) 12 and 39 when issued by the US Army Corps of Engineers (USACE). This letter
shall also act as your approved Authorization Certificate for impacts to the protected riparian buffers per
15A NCAC 2B .0233. In addition, you should obtain or otherwise comply with any other required
federal, state or local permits before you go ahead with your project including (but not limited to) Erosion
and Sediment Control, and Non-discharge regulations. Also, this approval to proceed with your
proposed impacts or to conduct impacts to waters as depicted in your application shall expire upon
expiration of the 404 or CAMA Permit.
This approval is Por t ie purpoge-and design that you described in your application. If you change your
project, you must notify us and you may be required to send us a new application. If the property is sold,
the new owner must be given a copy of this Certification and approval letter and is thereby responsible for
complying with all conditions. If total fills for this project (now or in the future) exceed one acre of
wetland or 150 linear feet of stream, compensatory mitigation may be required as described in 15A
NCAC 2H .0506 (h). This approval requires you to follow the conditions listed in the attached
certification and any additional conditions listed below.
Conditions of Certification:
1. Impacts Approved
The following impacts are hereby approved as long as all of the other specific and general
conditions of this Certification (or Isolated Wetland Permit) are met. No other impacts are
approved including incidental impacts:
401 Oversol/Express Review Permits Unit .
1650 Mall Service Center, Raleigh, North Carolina 279.1660
2321 Cm Mm Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] /FAX [phone] / Internet httpJ/h2o.enr.state.nc.us/ncwetlands
1
ial Opportunity/Affirmative Action Employer - 50% Retycledll0% Post Consumer Paper
Community Properties
Page 2 of 3
October 28, 2005
impact To: Amount Approved nits Plan Location or Reference
Stream 249 LF pere*al PCN page 3 and 4 of 9
Stream 72 LF intermittent PCN page 3 and 4 of 9
Stream 22 LF erennial - temporaa PCN page 3 and 4 of 9
404/CAMA Wetlands 0.34 acres PCN page 4 of 9
Zone 1 TPBR Buffer h-apacts 18, 157 uare feet PCN page 8 of 9
Zone 2 TPBR Buffer Impacts___ 13, 548 (square feet PCN page 8 of 9
Sediment and Erosion Control:
2. Erosion and sediment control practices must be in full compliance with all specifications governing
the proper design, installation and operation and maintenance of such Best Management Practices in
order to protect surface waters standards:
a. The erosion-and sediment control measures for the project must be designed, installed,
operated, and maintained in accordance with the most recent version of the North Carolina
Sediment and Erosion Control Planning and Design Manual.
b. The design, installation, operation, and maintenance of the sediment and erosion control
measures must be such that they equal, or exceed, the requirements specified in the most
recent version of the North Carolina Sediment and Erosion Control Manual. The devices
shall be maintained on all construction sites, borrow sites, and waste pile (spoil) projects,
including contractor-owned or leased borrow pits associated with the project.
c. Sufficient materials required for stabilization and/or repair of erosion control measures and
stormwater routing and treatment shall be on site at all times.
3. No waste, spoil, solids, or fill of any kind shall occur in wetlands, waters, or riparian areas beyond the
footprint of the impacts depicted in the 4041401Permit Application. All construction activities,
including the design, installation, operation, and maintenance of sediment and erosion control Best
Management Practices, shall be performed so that no violations of state water quality standards,
statutes, or rules occur;
4. Sediment and erosion control measures shall not be placed in wetlands or waters to the. maximum extent
practicable. If placement of sediment and erosion control devices in wetlands and waters is.
unavoidable, they shall be removed and the natural grade restored within six months of the date that the
Division of Land Resources has released the.project;
5. Protective Fencing - The outside buffer, wetland or water boundary and along the construction corridor
within these boundaries approved under this authorization shall be clearly marked with orange warning
fencing (or similar high visibility material) for the areas that have been approved to infringe within the
buffer, wetland or water prior to any land disturbing activities to ensure compliance with 15 NCAC 2H,
Section.0500;
6. Deed Notifications - Deed notifications or similar mechanisms shall be placed on all retained
jurisdictional wetlands, waters and protective buffers in order to assure compliance for future
wetland, water and buffer impact. These mechanisms shall be put in place prior to impacting any
wetlands, waters and/or buffers approved for impact under this Certification Approval and
Authorization Certificate. A sample deed notification can be downloaded from the 401/WeWmds Unit
Community Properties
Page 3 of 3
October 28, 2005
web site at http://h2o.enr.state.nc.us/ncwetlands. The text of the sample deed notification may be
modified as appropriate to suit to this project;
7. Construction Stormwater Permit NCG010000
Upon the approval of an Erosion and Sedimentation Control Plan issued by the Division of Land
Resources (DLR) or a DLR delegated local erosion and sedimentation control program, an NPDES
General stormwater permit (NCGO 10000) administered by DWQ is automatically issued to the
project. This General Permit allows stormwater to be discharged during land disturbing construction
activities as stipulated by conditions in the permit. If your project is covered by this permit
[applicable to construction projects that disturb one (1) or more acres], full compliance with permit
conditions including the sedimentation control plan, self-monitoring, record keeping and reporting
requirements are required. A copy of this permit and monitoring report forms may be found at
http•//h2o enrstate nc us/su/Forms Documents.htm.;
8. Culvert Installation
Culverts required for this project shall be installed in such a manner that the original stream profiles are
not altered. Existing stream dimensions (including the cross section dimensions, pattern, and
longitudinal profile) must be maintained above and below locations of each culvert. Culverts shall be
designed and installed to allow for aquatic life movement as well as to prevent head cutting of the
streams. If any of the existing pipes are or become perched, the appropriate stream grade shall be re-
established or, if the pipes installed in a perched manner, the pipes shall be removed and re-installed
correctly.
Culvert(s) shall not be installed in such a manner that will cause aggradation or erosion of the stream up
or down stream of the culvert(s). Existing stream dimensions (including the cross section dimensions,
pattern and longitudinal profile)`shall be maintained above and below locations of each culvert.
Therefore, you must provide plans with adequate details that indicate that the current stability of the
stream will be maintained or enhanced. You must receive written approval from this Office for the
above plans before the culvert(s) is installed. Culvert(s) must be installed according to approved plans.
Placement of culverts and other structures in waters, streams, and wetlands must be placed below the
elevation of the streambed by one foot for all culverts with a diameter greater than 48 inches, and 20
percent of the culvert diameter for culverts having a diameter less than 48 inches, to allow low flow
passage of water and aquatic life. Design and placement of culverts and other structures including
temporary erosion control measures shall not be conducted in a manner that may result in dis-
equilibrium of wetlands or streambeds or banks, adjacent to or upstream and down stream of the above
structures. The applicant is required to provide evidence that the equilibrium shall be maintained if
requested in writing by DWQ.
The establishment of native, woody vegetation and other soft stream bank stabilization techniques must
be used where practicable instead of rip rap or other bank hardening methods. If rip-rap is necessary, it
shall not be placed in the stream bed, unless specifically approved by the Division of Water Quality.
Installation of culverts in wetlands must ensure continuity of water movement and be designed
to adequately accommodate high water or flood conditions.
Upon completion of the project, the Applicant shall complete and return the enclosed "Certificate of
Completion" form to notify NCDWQ when all work included in the §401 Certification has been
completed. The responsible party shall complete the attached form and return it to the 401 [Wetlands
Community Properties
Page 4 of 3
October 28, 2005
Unit of the NC Division of Water Quality upon completion of the project. Please send photographs
upstream and downstream of each culvert site to document correct installation along with the
Certificate of Completion form.
9. Diffuse Flow (No Review)
All constructed stormwater conveyance outlets shall be directed and maintained as diffuse flow at
non-erosive velocities through the protected stream buffers such that it will not re-concentrate before
discharging into a stream as identified within 1.5A NCAC 2B .0233 (5). If this is not possible, it may
be necessary to provide stormwater facilities that are considered to remove nitrogen. This may require
additional approval from this Office.
Certificate of Completion:
10. Upon completion of all work approved within the 401 Water Quality Certification or applicable
Buffer Rules, and any subsequent modifications, the applicant is required to return the attached
certificate of completion to the 401/Wetlands Unit, North Carolina Division of Water Quality, 1650
Mail Service Center, Raleigh, NC, 27699-1650.
Violations of any condition herein set forth may result in revocation of this Certification and may result in-
criminal and/or civil penalties. The authorization to proceed with your proposed impacts or to conduct
impacts to waters as depicted in your application and as authorized by this Certification shall expire upon
expiration of the 404 or CAMA Permit.
If you do not accept any of the conditions of this Certification (associated with the approved wetland or
stream impacts), you may ask for an adjudicatory hearing. You must act within 60 days of the date that
you receive this letter. To ask for a hearing; sen&i written petition, which conforms to Chapter 150B of
the North Carolina Genen. Statutes to the Office -of Administrative Hearings, 6714 Mail Service Center,
Raleigh, N.C. 27699-6714. This certification and-its conditions are final and binding unless you ask for a
hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water
Act. If you have any questions, please telephone Cyndi•Karoly or Ian McMillan in the Central Office in
Raleigh at 919-733-1786 or Mike Horan in the DWQ Raleigh Regional Office at 919-791-4200.
AWK% jm
Enclosures:
GC 3374 and GC 3402
Certificate of Completion
Gf '
Sincerely,
Alan W. Klimek; P.E.
r
i
Community Properties
Page 5 of 3
October 28, 2005
cc: USACE Raleigh Regulatory Field Office
Mike Horan, DWQ Raleigh Regional Office
DLR Raleigh Regional Office
File Copy
Central Files
Sean Clark, Soil & Environmental Consultants, P.A., 11010 Raven Ridge Road, Raleigh, NC 27614
Filename: 051701 BrightonForestSD(Wake)4O 1+NBR
L
Worksheet for By pass Channel- 1

Project Description
Friction Method Manning Formula
Solve For Normal Depth
Input Data
Roughness Coefficient 0.035
Channel Slope 6.41 %
Left Side Slope 3.00 ft/ft (H:V)
Right Side Slope 3.00 ft/ft (H:V)
Discharge 18.11 ft /s
Results
Normal Depth 0.97 ft
Flow Area 2.83 ft2
Wetted Perimeter 6.14 ft
Top Width 5.82 ft
Critical Depth 1.18 ft
Critical Slope 0.02285 ft/ft
Velocity 6.41 ft/s
Velocity Head 0.64 ft
Specific Energy 1.61 ft
Froude Number 1.62
Flow Type Supercritical
GVF Input Data
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
GVF Output Data
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ft/s
Normal Depth 0.97 ft
Critical Depth 1.18 ft
Channel Slope 6.41 %
Critical Slope 0.02285 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.071.001
8/26/20112:55:08 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 1 of 1
ATA 0?0? W AT F90G
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS-VFS) SUPPLEMENT
This form must be completely filled out, printed, initialed, and submitted.
I. PROJECT INFORMATION
Project name Brighton Forest - Phase VI-B
Contact name Nick Antrilli, El
Phone number 919-469-3340
Date August 26, 2011
Drainage area number 1
II. DESIGN INFORMATION
The purpose of the LS-VFS Buffer Rule: Diffuse Flow
Stormwater enters LS-VFS from The drainage area
Type of VFS Protected riparian buffer (slope < 5%)
Explanation of any "Other" responses above
If Stormwater Enters the LS-VFS from the Drainage Area
Drainage area 163,786 ft'
Impervious surface area 43,995 fe
Percent impervious 26.86 %
Rational C coefficient 0.46
Peak flow from the 1 in/hr storm 1.73 cfs
Time of concentration 5.00 min
Rainfall intensity, 10-yr storm 7.22 in/hr
Peak flow from the 10-yr storm 12.49 cfs
Design storm 1 inch/hour storm
Maximum amount of flow directed to the LS-VFS 1.7 cfs
Is a flow bypass system going to be used? Y (Y or N)
Explanation of any "Other" responses above
If Stormwater Enters the LS-VFS from a BMP Do not complete this section of the form.
Type of BMP Pick one:
Peak discharge from the BMP during the design storm cfs
Peak discharge from the BMP during the 10-year storm cfs Do not complete this section of the form.
Maximum capacity of a 100-foot long LS-VFS 2 cis
Peak flow directed to the LS-VFS cis Do not complete this section of the form.
Is a flow bypass system going to be used? (Y or N)
Explanation of any "Other" responses above
LS-VFS Design
Forebay surface area 105 sq ft Forebay is adequately sized.
Depth of forebay at stormwater entry point 12 in
Depth of forebay at stormwater exit point 12 in Depth is appropriate.
Feet of level lip needed per cfs 50 ft/cfs
Computed minimum length of the level lip needed 85 ft
Length of level lip provided 85 ft
Form SW401 - LS-VFS - 27Ju12011 - Rev.9 page 1 of 3
Width of VFS
Elevation at downslope base of level lip
Elevation at the end of the VFS that is farthest from the LS
Slope (from level lip to the end of the VFS)
Are any draws present in the VFS?
Is there a collector swale at the end of the VFS?
Bypass System Design (if applicable)
Is a bypass system provided?
Is there an engineered flow splitting device?
Dimensions of the channel (see diagram below):
M
B
W
y (flow depth for 10-year storm)
freeboard (during the 10-year storm)
Peak velocity in the channel during the 10-yr storm
Channel lining material
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Explanation of any "Other" responses above
50 ft
273.50 fmsl
271.50 fmsl
4.00 %
N (Y or N) OK
N (Y or N)
Y (Y or N)
Y (Y or N) Please provide plan details of flow splitter & supporting calcs.
3.00 ft
0.00 ft
12.00 ft
0.97 ft
1.03 ft
6.41 fVsec
Pick one:
N (Y or N)
Y (Y or N)
kk

? ]3
III. REQUIRED ITEMS CHECKLIST
EDIT Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result
in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the
following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met,
attach justification.
Requried Item:
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build-out,
Off-site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Forebay (if applicable),
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW), and
Boundaries of drainage easement.
Initialp A Paag(e or plan sheet number and any notes:
I
Form SW401 - LS-VFS - 27Ju12011 - Rev.9 page 2 of 3
2. Plan details (1" = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
High flow bypass system,
One foot topo lines between the level lip and top of stream bank,
Proposed drainage easement, and
Design at ultimate build-out.
3. Section view of the level spreader (1" = 20' or larger) showing:
- Underdrain system (if applicable),
Level lip,
Upslope channel, and
Downslope filter fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable). 44
5. A construction sequence that shows how the level spreader will be protected from
sediment until the entire drainage area is stabilized.
6. If a non-engineered VFS is being used, then provide a photograph of the VFS showing
that no draws are present.
7. The supporting calculations.
8. A copy of the signed and notarized operation and maintenance (0&M) agreement.

9
Form SW401 - LS-VFS - 27Ju12011 - Rev.9 page 3 of 3

A? 0`?0? W AT ?9?G
y
NCDENR `
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERT IFICATION APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS-VFS) SUPPLEMENT
This form must be completely filled out, printed, initialed, and submitted.
I. PROJECT INFORMATION
Project name Brighton Forest - Phase VI-13
Contact name Nick Antrilli, El
Phone number 919.469-3340
Date August 26, 2011
Drainage area number 2
II. DESIGN INFORMATION
The purpose of the LS-VFS Buffer Rule: Diffuse Flow
Stormwater enters LS-VFS from The drainage area
Type of VFS Protected riparian buffer (slope < 5%)
Explanation of any "Other' responses above
If Stormwater Enters the LS-VFS from the Drainage Area
Drainage area 77,536 fe
Impervious surface area 20,909 fe
Percent impervious 26.97 %
Rational C coefficient 0.46
Peak flow from the 1 in/hr storm 0.82 cfs
Time of concentration 5.00 min
Rainfall intensity, 10-yrstorm 7.22 in/hr
Peak flow from the 10-yr storm 5.91 cfs
Design storm 1 inch/hour storm
Maximum amount of flow directed to the LS-VFS 0.81 cfs
Is a flow bypass system going to be used? Y (Y or N)
Explanation of any "Other" responses above
If Stormwater Enters the LS-VFS from a BMP Do not complete this section of the form.
Type of BMP Pick one:
Peak discharge from the BMP during the design storm cfs
Peak discharge from the BMP during the 10-year storm cfs Do not complete this section of the form.
Maximum capacity of a 100-foot long LS-VFS 2 cis
Peak flow directed to the LS-VFS cfs Do not complete this section of the form.
Is a flow bypass system going to be used? (Y or N)
Explanation of any "Other' responses above
LS-VFS Design
Forebay surface area 44 sq ft Forebay is adequately sized.
Depth of forebay at stormwater entry point 12 in
Depth of forebay at stormwater exit point 12 in Depth is appropriate.
Feet of level lip needed per cfs 50 fvcfs
Computed minimum length of the level lip needed 41 ft
Length of level lip provided 41 ft
Form SW401 - LS-VFS - 27Jul2011 - Rev.9 page 1 of 3
Width of VFS
Elevation at downslope base of level lip
Elevation at the end of the VFS that is farthest from the LS
Slope (from level lip to the end of the VFS)
Are any draws present in the VFS?
Is there a collector swale at the end of the VFS?
Bypass System Design (if applicable)
Is a bypass system provided?
Is there an engineered flow splitting device?
Dimensions of the channel (see diagram below):
M
B
W
y (flow depth for 10-year storm)
freeboard (during the 10-year storm)
Peak velocity in the channel during the 10-yr storm
Channel lining material
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Explanation of any "Other" responses above
50 ft
274.00 fmsl
272.00 fmsl
4.00 %
N (Y or N)
N (Y or N)
Y (Y or N)
Y (Y or N)
3.00 ft
0.00 ft
12.00 ft
0.97 ft
1.03 ft
6.41 fVsec
Pick one:
OK
Please provide plan details of flow splitter & supporting calcs.
N (Y or N)
Y (Y or N)
kk
B
III. REQUIRED ITEMS CHECKLIST
EDIT Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result
in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the
following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met,
attach justification.
Requried Item: Initials
1. Plans (1" - 50' or larger) of the entire site showing: ?A
- Design at ultimate build-out,
Off-site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Forebay (if applicable),
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW), and
- Boundaries of drainage easement.
Page or plan sheet number and any notes:
y
Form SW401 - LS-VFS - 27A2011 - Rev.9 page 2 of 3

2. Plan details (1" = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
High flow bypass system,
One foot topo lines between the level lip and top of stream bank,
Proposed drainage easement, and
Design at ultimate build-out.
3. Section view of the level spreader (1" = 20' or larger) showing:
- Underdrain system (if applicable),
Level lip,
Upslope channel, and
Downslope filter fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction sequence that shows how the level spreader will be protected from
sediment until the entire drainage area is stabilized.
6. If a non-engineered VFS is being used, then provide a photograph of the VFS showing
that no draws are present.
7. The supporting calculations.
8. A copy of the signed and notarized operation and maintenance (0&M) agreement.

IVLf -7
711, M
Nla `I

Form SW401 - LS-VFS - 27Ju12011 - Rev.9 page 3 of 3
Permit Number:
(to be p•ovided by D if'Q)
Drainage Area Number:
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 filches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC,1993). Forested filter strips do not require this type of maintenance.
Once a year, the soil will be aerated if necessary.
- Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1,0 inch (or 1,5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired irrunediately.
BMP element: Potential problem: How I will remediate the problem:
The entire filter strip Trash/debris is present. Remove the trash/debris.
system
The flow splitter device The flow splitter device is Unclog the conveyance and dispose
(if applicable) clogged. of an sediment off-site.
The flow splitter device is Make any necessary repairs or
damaged, replace if damage is too large for
re air.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 1 of 3
BMP element: Potential problem: How I will remediate the problem:
The swale and the level The swale is clogged with Remove the sediment and dispose
lip sediment. of it off-site.
The level lip is cracked, Repair or replace lip.
settled, undercut, eroded or
otherwise damaged.
There is erosion around the Regrade the soil to create a berm
end of the level spreader that that is higher than the level lip, and
shows stormwater has then plant a ground cover and
bypassed it. water until it is established. Provide
lime and a one-time fertilizer
application.
Trees or shrubs have begun Remove them,
to grow on the Swale or just
downslo a of the level lip.
The bypass channel Areas of bare soil and/or Regrade the soil if necessary to
erosive gullies have formed, remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is Study the site to see if a larger
damaged or ripap is rolling bypass channel is needed (enlarge if
downhill. necessary). After this, reestablish
the erosion control material.
The filter strip Grass is too short or too long Maintain grass at a height of
if applicable). approximately three to six inches.
Areas of bare soil and/or Regrade the soil if necessary to
erosive gullies have formed. remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Sediment is building up on Remove the sediment and
the filter strip, restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated. Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or Determine the source of the
dying. problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application.
Nuisance vegetation is Remove vegetation by hand if
choking out desirable species. possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water Erosion or other signs of Contact the NC Division of Water
damage have occurred at the Quality local Regional Office, or the
outlet. 401 Oversight Unit at 919-733-1786.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 2 of 3
Permit Number:
(to be provided by DJVQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project n(une: BRIGHTON FOREST SUBDIVISION - PHASE VI-B
&VIP drainage area nwnbe?•:
Print name: JACK MORISEY
Title: AGENT
Address: 1000 ST. ALBANS DRIVE SUITE 400, RALEIGH NC 27609
Phone: [phone]
c?l/?(?l?
Signature:
Date:
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I, ?VN(xv ,rON C. Cr f: i a Notary Public for the State of
,Yxkk Cox-01; nct , County of do hereby certify that
personally appeared before me this ao*
day of btk , and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
CNPNNo*
O
°? ?NO
y ?? ?C NG
SEAL
My commission expire C-Ila
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 3
Permit Number:
(to be provided by Dil'Q)
Drainage Area Number:
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
- Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
- Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
- Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
- Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC,1993). Forested filter ships do not require this type of maintenance.
- Once a year, the soil will be aerated if necessary.
- Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element: Potential problem: How I will remediate the problem:
The entire filter strip Trash/debris is present. Remove the trash/ debris.
system
The flow splitter device The flow splitter device is Unclog the conveyance and dispose
(if applicable) clogged. of an sediment off-site.
The flow splitter device is Make any necessary repairs or
damaged. replace if damage is too large for
repair.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 1 of 3
BMP element: Potential problem: How I will remediate the problem:
The swale and the level The swale is clogged with Remove the sediment and dispose
lip sediment. of it off-site.
The level lip is cracked, Repair or replace lip.
settled, undercut, eroded or
otherwise damaged.
There is erosion around the Regrade the soil to create a berm
end of the level spreader that that is higher than the level lip, and
shows stormwater has then plant a ground cover and
bypassed it. water until it is established. Provide
lime and a one-time fertilizer
application.
Trees or shrubs have begun Remove them.
to grow on the swale or just
downslo a of the level lip.
The bypass channel Areas of bare soil and/or Regrade the soil if necessary to
erosive gullies have formed. remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is Study the site to see if a larger
damaged or ripap is rolling bypass channel is needed (enlarge if
downhill. necessary). After this, reestablish
the erosion control material.
The filter strip Grass is too short or too long Maintain grass at a height of
if applicable). approximately three to six inches.
Areas of bare soil and/or Regrade the soil if necessary to
erosive gullies have formed. remove the golly, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application,
Sediment is building up on Remove the sediment and
the filter strip. restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated. Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or Determine the source of the
dying. problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application.
Nuisance vegetation is Remove vegetation by hand if
choking out desirable species. possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water Erosion or other signs of Contact the NC Division of Water
damage have occurred at the Quality local Regional Office, or the
outlet. 401 Oversight Unit at 919-733-1786.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Baffer O&M-Rev.3 Page 2 of 3
Permit Number:
(to be provided by DTVQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name: BRIGHTON FOREST SUBDIVISION - PHASE VI-13
B 11P drainage area number:
2
Print name: JACK MORISEY
Title: AGENT
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I, c-*-,Qr,,-\, C (Tfi- , a Notary Public for the State of
KVA\ Coco t j n0. , County of ?o1nr???DR , do hereby certify that
3?A? C . Aor'ks0-1 u ZLZ personally appeared before me this _
day of ae? ?'`A?tr ay 11 , and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
4y r It%O C. PVN
0 8-19 2' P'
o?Q L1G
N COUN..•?j
SEAL
My commission expires Ais-0.1
V \j
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 3
Address: 1000 ST. ALBANS DRIVE SUITE 400, RALEIGH NC 27609
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0 0 GRADING AND EROSION CONTROL PLAN SHT 4 ~
LEGEND
9T1'l'IITA~'TD"IITA~E IG7'~T P'ET ~I D. DD~TICE-~YU'1'1'~ d
!i ~.i I
DESCRIPTION EXISTING PROPOSED
STORM DRAINAGE DETAILS SHT 7
J
2' CONTOUR INTERVAL
70' CONTOUR INTERVAL
~'T-',.~ ems,-a€~A~I~Ls,-~-H~~-
PROPERTY LINE m
ROADWAY CENTERLINE - - - - -
RIGHT OF WAY LIMITS - - - - -
EASEMENT LINE - - - - -
CURB & GUTTER
SANITARY SEWER FACILITIES ---~ti--- ~
STORM SEWER FACILITIES ~ g~
WATERLINE ----86---- -it r~'~~~~~i Y I~~
FIRE HYDRANT ASSEMBLY ~N~~ l~~j~ 7.99 AC)
FENCING STRUCTURE -oo-
WOODSLINF (YWYY, N/A pppDOp000pp0p
°°°p°~~N CAR p/°°~oa, ° DpO~O+D(Dpo \ ~0 J
WATERWAYS N/A °°°°~O/[°~FtiSSr?Q ° oD cooo
SILT FENCING N/A~~"~n- 0 Q Dy( DO oo
o~~~ o D e o e p o e 0
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R
PREPARED BY:
L~
SRI T®N ST, I
WITHERS ~ i/ENEL
1000 ST. ALBAN5 ®RIVE, 5U6TE 400
ENGINEERS I PLANNERS 1 SURVEYORS RALEIGH, NC 27609
111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: [phone] www.withersraveneLcom TELEPHONE [phone] E~~?~
FAX [phone]
ATTN: JACK MORISEY
No. Kevision Udlt7 p
A PER WAKE CO. & ToFV COMMENTS 7 27 11 GAS i;
B REVISED SETBACKS PER ToFV 8/26/11 NJA
i'';
li
..:J

_ ,r ~ / I ? ? k 1 ~ j i ' I i s { { j I ll' 11 1' 1111' tl { ~ \ 1 \
IM NT A IN I N HART ~ ° ~ r \ O I { 1 l l 1 I ?
'rte ~ ~ ~ ~ 0 ~ f i" i ' I iI II j j I II 1111 11111 1 111 11 111 ~{~`y~ r ' tl f~~~f \j vv
DENUDED DRAINAGE PEAK FLOW BASIN DIMENSIONS WEIR CLEANOUT VOLUME VOLUME SURFACE SURFACE ~ , , 1 ~ c~ - LENGTH FREQ REQUIRED PROVIDED AREA REQ. PROVIDED DEWATERING \ , ~ ~ _ - _ _ . ' - ~ti~~ ' ' i I I ~ 11 ~ ~ I I I 11 11 it j 1! \\r f~li ~ i ~ r r I ~i I l r f r ~ I, r w ~
BASIN TYPE AREA AREA Q10 DEPTH LENGTH WIDTH F S HOLES , + ~ CU °T°----------' - [AC] [AC] [CFS] FT] [FT] [FT] [Fl7 [MONTHS] [CFI [CF] [S ] [ F] , ~ \ Q - _ _ _ _ _ l ~ ~ G~Gj t rr ~ i r~ ~ I!f \ ~ I 1 I i'
[
2 229 2 450 ` ~o X ~ 0 I .1 2.0 70 35 10 12 3,762 4,900 6 o ~ c~j _ _ 1 CUSTOM 0.90 2.09 5 , ~ oo ~ ~ ® J ~ ~ , ` ~ ~ 0 _ _ ~ ~ ~ ` v / ~ r , r 1 1! r i I 'I I ; ! ~ r f i ~ 11 it / I t r i i l i , i t I
C STOM 2.74 9.36 22.9 2.0 155 70 10 12 16,848 21,700 9,983 10,850 18 1 ~ ~ 4~ ~ - z u _
` ~ c~ 2.0 90 5D 10 12 7,452 9,000 4,415 4,500 12 - - ~ ~ ~ ' ^vv ~ - - ~ / % 1 i ~ i r i 1111 I ' f ii,~ ~ I I ~ I 3- - ~ r' _ ~ ' / ' r I 11 t 1 Ii ~ /r r / III t
3 CUSTOM 0.70 4.14 10.2 - ~ ° ~ a° ~ rEXISTiNG
2.0 155 70 10 12 17,874 21,700 10,591 10,850 20 ` 1~~~ ~ ,1 0 ~-___-------1)IVER'SION-- 4 CUSTOM 1.43 9.93 24.3 ~ ~ 2 " DIT.CkI_ 'j -
1 i t t I / ` r' it I 111 ~ r 1 1 / f t i " /i%/ J/,°'
* - ATERING HOLES PER HORIZONTAL RING AS SPECIFIED PER WAKE COUNTY EROSION CONTROL. ' ~ ~ - - ° DENOTES DEW qc` ~ _ RI~I~TON BLUFF DRIVE?? _ _ -o r'so+ al /;,4~ , 1 / r I' I
PACING SHALL BE AS FOLLOWS: 1ST RING AT 6", 2ND AT 9", AND EVERY 3" THEREAFTER UNTIL TOP OF BASIN IS REACHED. ~ + £ ~ • $R'j~r~~~~ ] HORIZONTAL RINGS _ _ PER BRIGHTON FOREST PHASE V-B APPROVED CONSTRUCTION DRAWINGS. ~ + - ~ - BASINS WERE DESIGNED AND INSTALLED ~ ~ ' ~
~ ~ 4+Op - - 1 _ , `T`om-- 1 k / ~ ~ ~ - 7-.~ - _ ? 2s r / 11 r t 1 r" i 1 rr r !r r r'rr r {
STORM DRAINAGE CHART 6 ~ ' 2s+oo ~ `
LENGTH SLOPE INLET D.A. IMP. D.A. INLET FLOW Q1D SECTION PIPE ~ , ~ o ~ ~ ~6d~00 27+00 - r ' ' /r r Ir j , t 1 ! iil f1 t i ` / ' ' t t r r r ll~i I L
UPSTREAM DOWNSTREAM UPSTREAM UPSTREAM DOWNSTREAM ~ _ ~aa~oo CFS MATERIAL + 0 ~ , VERT INVERT [FT] (FTIFI] [AC] (AC] C [ ] SIZE ~ / , ~ 9 T UCTURE WEIR ELEV IN STRUCTURE S R / ~ . / / ritl ~ 1 ' r 1 { 1~ 1
. 5 292.60 95 0.0100 1.95 0.52 0.46 6.53 18 CL III RCP _ ' ~ ~a ~ _ _ _
DI 626 DI B25 296.25 293 5 / , C I , , / 1 ~ ~
.19 18 CL III RCP ~ ~ ~ DI624 DI 623 298.00 292.40 287.25 379 0.0136 0.49 0.14 0.48 B / r ~ ~ / ' 1 /r I I / 11~\\\
4 CL III RCP \ " t \ rf - i DI 623 DI 622 290.00 286.75 286.20 53 0.0104 2.82 0.74 0.46 17.20 2 ~ \ ^ ~ ? r i'' ~ ~ , , 1 t 1 t i I I IIII t S~ 1 ! t ! 1 ~ 1 1 \ ~ 1 / , , r l' ~ rl / iII~iII ~ ~ i ~ i ~ 1 1 t
DI 622 DB 624 291.30 286.00 275.00 169 0.0651 0.28 0.09 0.49 18.11 24 CL i C v ~ ' - --r rr' , , i' I1 1 ~ I I I ~ i i ' i ~ 1 i r" f Ir r' t 1
r ~ ~ ~ r , t! , t I I I I iii r I~ i l r 1 r~ t , „ , 11 I I I I I I I t I t l ~~n - - ~ ~ ~i~ I\ LZ L / - jSI i ( !1 Ir/ tl r" 'I~,~~ I I 1 ~ II i ~ i"' 1 i rr 1 rr 1 I
DB 620 FES 619 278.32 275.82 274.00 27 0.0674 - 18.11 24 CL III RCP o ~r ~ i (k 2`~ ' ~ ~ !k~ ~ l 0 ~ I ~ ` 1i ~ / ~ I v ! t Lp-1) } I i i 1 I 1 1 t!~ i r
n ` ' 1. RAINFALL INTENSITY, I+o - 7.22 IN/HR r + ~ ~ i - r `
2. SEE SHEET 7 FOR STRUCTURE DETAILS. + - _ - ~ ~ r---- r i ~ III i //!I r 1 1 1 i i I I, / t I II r'~ , - i- 'i'-"~ I i ~ I I t 1 I i I I
ETCH AND SWALE TA L ~ I j - o V I `I `i ~ ~ i I I l i l 1 1` 1 I r!1"r t l ,
r, . ~ _ ~ + , ~ ~ I 11 - " t~' - / / F~'~U ~ ~S~I ~ ~ +I 1 I 1 r~ r f ~ I j -A-_A 1" ~ I t / r I I
PERVIOUS AREA C Q10 SLOPE VELOCITY NORMAL DEPTH ~ ~ F TUR SECTION DRAINAGE AREA IM _ N.A.G. LINING 'r - t._._._._._ ~ RE p ` _ ~ --Q,± Grp I ~~j~~'fi r~.l-i__ t 1 I { r 'L] ' j ~ ~ j 11 I I~ I 1 I I ' I I 1~ 1' ! 1
DITCH ACRES ACRES] (CFS] [FTISj [FT] ~ ~ , i t _ pH FROM TO [ I [ AS - Dk 1 1 1 1 I i l 1 1 1 1 1 t t -I~r t r l i A~~~-~ I ~ ~ t~®'J / I IIII i ill IIII 1/t ~r r r
~ i , , r < ~C ' ~ ~ I I 1 ~ pp I. ~ ! r rl Ir rr ' j / ~ i I I I 111111 YI' / l 1/! ! I _ r ~ --.F_r r ~ ~ j i i ~ 11 111 1 t•i I I 1 i rl 1 rr r
63 1.06 0.29 0.44 3.39 3.07 3.48 0.53 S75 o n, , , _ ~ ~ ---1 ? '~,j ~ , i r- ~ ~ j , \ ~ I I i ~~I I 1 11 I I i , ~ 1 1 i ~I 1 ~ ,1 ! r
.2 S75 \ , ` ~ ; ~ , B3 B4 0.19 0.07 0.53 0.72 6.70 3.16 0 6 , ~ ~ _ ~ ; i rte. i! ,r' 7 j ~ r'~ ZJLYi / Iii I I~11 Iy' 11 1 i l t r r r \ ~ I J, j I _ I ,,_-i-- r.y I I I I I 11 r 1 1 1 ~ 1 I, 1 r
RIP RAP ~ ~g ~ , \ ; J ~ \ PROTECTION ' ,j' ~ r~ % ~ ~ ~~STR~IG1Ti0N 1 1 ~I 1`1111 iirrlr , r rr r!
, r ~ 5.50 1.70 3.14 0.71 ST5 + r , 0.57 0. i ~ \ r r r , , i B B5 B6 1.44 Q~ j ?xFENCE (TYP) ; ! .~~-'~~,<< _ ~ ~ i MI'CS i 1 I I ~11/+, 1 111 IJul~r ! ~ A j ~ I ~ - I ~ i j ,-G _ _ ~~'...._._.„r"'"'_ i j I I i 111 r It 1 1 1 1~1!'ll/ rlf r~-
~ ~ ? ` I - I i I . i . r' - _ - - ' , "'f- 1 1 I ' 1 ri 11 1 III III 11 ! ~ ; ~ ; I ! ~ ~ ~ , ~ ! r.. r I j'- _ ~ 7 _1_ 1 { I I nIs{{! 1 BOTTOM OF
0.48 4.99 3,40 3.98 0,60 ST6 \ ` \ i ' r` r' B5 BB 1.43 0.48 _ _ ~ ~ i i~ ? I . ,r'-_-- ( ' I 1 `IIII 1111r ? i j, \ ' , j ~ ,i rl 1 7 -'r r...~. I t , I III 11111{' EXISTING BASIN 3 ~ ~ j OVE ~ ~ ~ , i I i i i ~I i ~ ~It r { it 111111{iy MAY BE L04VfRfD
0.41 S75 ' _ ~ ~ , 6 B9A B9 0.50 0.16 0.47 1.69 3.07 2.92 = od , + ~ ; ~~j ; I ~ j. E~(1$T'fNG p~ , ~ / ~ ~y ~I ~ IIII` TO ALLOW POSITIVE
0.06 0.47 0.61 6.70 3.04 0,24 S75 ~ r + _ , 'F`\ i ° ° ~ ~ \ ~6ti& ` B9 C5 0.18 ~ ~ _ ' y~~ `?i j ; ~~~~~,,P~ ~CI' h~ , ' ,'?I = , ~ f1 7rC i12~' ~I ~ 1 r 1,'ii DRAINAGE FROM DI s~' ~
~ j , ~ SI'f~ ~ I G~ AI~IA~i~ 1 v~~ 522 DURING / ~I . Q i / r ~~~,~y} l , . ! r ~ i CONSTRUCTION
C1 B6 0.14 0.06 4.57 0.57 1.70 1.78 0.3 S75 hl, 0 ~ `;~°.1.°
C1 C2 0.13 0.05 0.50 0.45 4.26 2.38 A.23 S75 i~\ ~ ~ ~ ~ r /_o _ `
J , 0.06 0.61 0.52 8.00 3.12 0.22 S75 ' „ X30 / i `a ti` ' l 1 l CZ C3 0.12 ? y~` ? ~ SS 1 ~ 0 IS NCv I}S)Kl,/,3' , ' ! !r ~r 6`- / r/ !rr
Iii 4 0.29 S75 1 v ~ ` C3 C4 0.26 0.10 0.51 0.97 6.70 3. 1 ~ , ~ ~ \
Dc ,
NOTES, / t - - ~ / ~ , ~ ` _„1 - , OJ
N INING NECESSARY. , _ ~ ~ ' 1. DENOTES NO L - ° T H S ARE V" SHAPED WITH 4:1 FRONT SLOPES AND 3:1 BACK SLOPES, PER ~ - ' ; ` 2. ALL DICE , ;
TH THE EXCEPTION OF DITCHES G AND H. r` w , - ~ i ~ TYPICAL SECTION WI ~ I ~ \ 'rte _ _ , ! ~ ~ j i I~ ~ - i S 1 ! WQ.
N R N SPECIFfCATION. USE OF EQUIVALENT ~ ° " ' i ~ ' 3. SWALE LINING REFERS TO NORTH AMERICA GEE ~ _ 2 2 ~ ° ~ i PRODUCT TO BE APPROVED BY ENGINEER AND WAKE COUNTY ENVIRONMENTAL SERVICES. ~ / r~~o 5°/ ~ SILT
4. SOD WILL ACT AS APPROPRIATE SUBSTITUTE FOR ANY AND ALL LINING MENTIONED ABOVE. ' ~ _ ~ , ~ - ~EPIGEj~ Ate`, i \ ,r 1 ~ ~ , ~~i'~' r Ct1
> Iii ~ ~ ~ '-'-FEPJGEi r ,
r- y O
- 1 2' 1 ~ ~ i DENUDED AREA - 2.6 ACRES ~ , ' ~ , i 1 - j ~ r r; j / ' ' ~ARI~` I
? \ J . ~ ~ 1 r ! I,r , / ~ ~ ' '~/////~~E~~{ ~y +I~' / / /'~S}UB I ~ I I IN I , ,
/ j ! II I I I 1 /r I Il !r ~c ~ /D~~ l l l' ' 1• / iLAS t t ~ " ' ' '
NTROL NARRATIVE ~ ` ~ ` ~ ` ~ ~ ~ _ ' , EROSION CO 1 ` ~ \ r _ ? ? j j 1 I i ,I l ! , ~--'r , ,/,~,,G~/ r Il 1 I 1 I L i t/ I i I Q V~+~' a~\ ~ ~ I / ' t ! / ' ? i~ j~~/„%%JX7S / r 1 ~ 1 ~ 1 , \I I I y.l...------iii ~ 1
` ~ ~H s EXIS NG DIVERSION DITCH TO BASIN 4 ~ , ~ ~ _ ~ UI. S SIDE ~ ~ ~ ~ ~ ry ~ ~ B THIS 7.99-ACRE SITE IS LOCATED ALONG THE SOUTHER T SJ x., ~ i j .1 1 j rl rl / r W -/%ri ~~/'r ~ ~ l ~ ' ~ 11~ / I I 1 it Jr„r-h j ~
OF JOHNSQN POND ROAD IN SOUTHERN WAKE COUNTY. THIS ~ , ~ ~ i i . ~ I~G Ci ~ _ ` ~ jr i r /r , ~ ; SP I~ADEF21 ~1 ~ ! 1 + , ! I ~ r.- ~..IAC ? ? ay'-~_-- j~ / / r r / i,//,r , ! I ii 1 ...-11 f I jl ' E-~g ~ ~
PHASE WILL CONSIST OF 17 SINGLE-FAMILY X 1 1, 1 i~ A LOTS AND 658 LINEAR FEET OF PUBLIC STREETS. ~ ~ ~ r ~r , - 1 ~ ,y-
~ ~ - ~ - l r 'y~"L ;/~~IOrU ! ! Ptt ~Ll 6At i` _ ~ ...-,it ~ I I
RUNOFF FROM THIS SITE IS TRIBUTARY TO MIDDLE CREEK IN _ RAL NO"DES EROSION CONTROL ~ ` ~ ~ ~ ' ~ ~ GENE ~ . , ~ '~-`Sifl~~--URA / 11 C tlJ T' y ~ • i I
THE NEUSE RIVER BASIN. ~ \ , ~ ~ , ' J' ~ ~ r r 1. ALL. LAND DISTURBING ACTIVITIES SHALL BE CONDUCTED IN ACCORDANCE WITH , ~2 r` '
E OF CUSTOM ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ r SEDIMENT RUNOFF IS TO BE CONTROLLED BY THE US WAKE COUNTY SOIL EROSION AND SEDIMENTATION CONTROL STANDARDS AND ~ , ~ ~ , ' ~ ~ ~ , oy~ pp r q r r _ l / ,`~i 111 1 1 % ( I II{ r! lX! ~ /,r /,/%r/,r 7 1' t itl ~ Ci tli.~10 t 1 / 1,/ j 11 1 I {
P RARY DIVERSIONS SILT FENCE AND OTHER ~ , ~ ~ \ ~ ` ~ _ , ~ ~ BASINS, TEM 0 ~ PRACTICES. ~ , ~ ~ ~ ~ ~ ~ r , ~ ` , ~ ~ \ i~ r ~ ~ r MEASURES AS SHOWN ON THIS PLAN. r ~ ~ ~ /,r / r ,n~j ,r rr / 'rtitl r II p IIVINCi ~Ll, 1 / j ~ i
2. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTAINING ALL TEMPORARY 1 \ r ' I 1 i ~ ~ ~6 r \ ~ ~ ~ I I ~ r , `~^?r ,r ~C" ~ , r' i ill* y? / l 1~{ j aYYYJ1o 1 I I Ir ??\--/,r /r' rr~--___"_..__ /r /r 11 {'I ? ' r ,I 1! / ~ 1 ! i f I '
FEMA FLOODPLAIN ON THIS PROPERTY IS SHOWN PER FEMA FlRM MAP # SEDIMENTATION AND EROSION CONTROL DEVICES SHOWN ON THE APPROVED + + \ ~ ~ ~ ~ ~ \ ~ ~ r , / ~ L' / , r I N I
3720068800J, DATED MAY 2, 2006: PLAN. ~ , ~ ~ ~ \ , r , ~ x~y ~ ~ ~ ~
DI TURBED DURING CONSTRUCTION SHALL BE STABILIZED WITH + ~ ~ ` y\ I ' ~ / ` ~ - EXISTING CUSTOM BASINS ARE TO BE BROUGHT UP TO DESIGN 3. ALL AREAS S ~ ~ ~ ~ ~ I „r.,;;```_- ~ , Tj ~g j / r/ ,/~~i/rr ~ ~ ~J'i•II I + J /1..,~~~ I~'~~ ~j1 ~ lI ~ iN SIL'~".R/ ~ / r r' rr _y ~ t I I p _,L.., f P~1'"~ ' ~I~
IN TA D. TEMPORARY SEEDING AND MULCHING WITHIN 15 WORKING DAYS FOLLOWING ~ ~ ~ ~ , r , \ R STANDARDS AND THE SILT FENCING TO BE RE S LLE _ - _ N F GRADING. PERMANENT SEEDING MULCHING AND GROUND ` ~ cn ~ ' ' - - - `J
COVER SHALL BE APPLIED TO THE SITE FOLLOWING COMPLETION OF ~ ~ \ ~ , ~ \ _
UENCE coNSTRUCITON. ~ ' ~ ~w v ' CONSTRUCTION SEQ ~ _ _ _ ' / - ~ ~ ~ ~ ~ c,~ 1 r r' , ,B ~ 11
z 4. SLOPES SHALL BE NO STEEPER THAN 2:1, PREFERABLY OR ~ ~ ~ ~ ; S$-- =20+ o
I A LAND-DISTURBING PERMIT, SCHEDULE A PRE-CONSTRUCTION 1 ~ ~ ~ r ~ i ~ ~ ~ 1 1. OBTA N VEGETATIVE COVER. 1 \ ~ , ~ ~ ~ ~ ~ R N ENTAL ENGINEER JENNIFER MITCHELL, AT ~ ~ ~ CONFERENCE WITH THE ENVI 0 M ,
919-868-6415. 5. THE CONTRACTOR SHALL FAITHFULLY MAINTAIN ALL SEDIMENTATION CONTROL _
2. INSTALL GRAVEL CONSTRUCTION ENTRANCE, REHAB THE EXISTING CUSTOM EVICES AND TAKE ANY PRECAUTIONARY MEASURES TO ENSURE THAT SILT ` r r ` ~ 6~' - - - ' N ADD POROUS BAFFLES TEMPORARY DIVERSIONS, SILT FENCE, AND D , BASINS A D NEL LOCATED WITHIN THE SITE. ~ ~ ~ ~ ' i ~ '
~ ON THIS PLAN. EXISTING BASIN TO BE DOES NOT ENTER ANY NATURAL STREAM CHAN ~ Qi~ i c„ , I i _ ' ' a R MEASURES SHOWN ~ C> > ~ ' ANY OTHE DRAINAGE CHANNELS MUST BE CLEAN OF SEDIMENT AND STABILIZED BEFORE li ~I i i i ~ - ..r ~,o'~ 0 8.g / 05 ! / I JB 5041 Y p'S`- GL. t ~ r' •
a LOWERED 2 FT TO ALLOW POSITIVE TEMPORARY DRAINAGE FROM DI 622. THE PROJECT IS RELEASED BY WAKE COUNTY. i ti ~ ~ ~ ~ ~ r' ~ E/, ADJUST RISER STRUCTURE AS NEEDED TO DRAIN THE BASIN. t of b ~ i + ~ ? ,
~ 1 N 3. CALL 868-6415 FOR AN ONSITE INSPECTION BY THE ENVIRONMENTAL MpORARY SILT FENCE MAY BE REQUIRED TO BE INSTALLED IN AREAS 1 ~ + ~ i - ~
TAIN ACERTIFICATE OF COMPLIANCE. ~ ~ + + ~ ' ' ENGINEER TO OB WHERE SEDIMENT BASINS HAVE BEEN REMOVED, GRADED, AND SEEDED. THE ~ ~ 1 ~ , i , , ; ~ - ' - - 11111 t~ ~ ~A(NAGP EAS'EM _ ~~1 `v ~ ~i ~ rl r ~ r
N 4. BEGIN CLEARING AND GRUBBING. MAINTAIN DEVICES` AS NEEDED. ROUGH SILT FENCE SHALL REMAIN IN PLACE UNTIL GRASS IS ESTABLISHED. `y ~ ~ ~ ~ ' i t i i ~J ~ ' m GRADE THE SITE. ~ + J ~ + ' ~ ` i I ~ ~ 6 - ~6 /r "II ~ Ili / ' I I ' Ll ~+'i t
a 1 ~ ~ 1 I ~ i 1 1 ~ i ~I 5. INSTALL STORM SEWER AND PROTECT INLETS WITH BLOCK AND GRAVEL INLET 7, THERE ARE NO DESIGNATED AREAS FOR BORROW OR WASTE ON THIS PLAN. + 1 1 ~ ~ ~ i ~ I ~ //r _ - I F~ ~ ~ llt ~ J,! / l I!" l ~r r I ' ~ (y1" ~ (11
~ EDIMENT TRAPS OR OTHER APPROVED MEASURES AS SHOWN ON + , 1, ~ ~ ' ~ ; ~ CONTROLS, S EXCESS TOPSOIL OR OTHER WASTE MATERIAL SHALL BE HAULED OFF-SITE. ~ 1 1 i , ~ , i I I ~ , THIS PLAN. BEGIN CONSTRUCTION, BUILDING, ETC. STOP STORM PIPE OUT NO BORROW, WASTE, OR OTHER GRADING ACTIVITY SHALL OCCUR OUTSIDE ~ \ + , i , + r i ~ i , ,
OF DI 622 SHORT AND DITCH STORMWATER TO EXISTING SEDIMENT BASIN. IT OF C NSTRUCTION, ~ r ` 1 i ~ ~ ~ r ~ i ~ ' THE DESIGNATED LIM S 0 ~ I 1 r ~ I l r ~ / / ~ I ' 1 g/r ~~'r ~ ~ ~'`tiv j~ ~I I ~ I I ~ o~ i l t ~I~ 11
i I r I ~ i , 6. STABILIZE THE SITE A5 AREAS ARE BROUGHT UP TO, FINISH GRADE tMTH INGS ETC. SEED AND MULCH DENUDED ~ + I - ~ ' ' r ~ i ~
VEGETATION, PAVING, DITCH UN 8. FLOOD ygj,Ag~ @EGULAIIONS: THERE SHALL BE NO FILLING OR THE ~ , , ~ ~ r r , i r w AREAS WITHIN FIFTEEN (15) DAYS OF CQMPLE110N OF ANY PHASE OF EREC110N OF PERMANENT STRUCTURES IN THE AREAS OF WAKE COUNTY ~ ~ , , ~ r ~ ~ r' 1~ 1 I ~ p ! t
ro CONSTRUCTION. FLOOD HAZARD SOILS OR FEDERMAL EMERGENCY MANAGEMENT AGENCY ~ ~ 9 . ' r I r' I
ON IS COMPLETE AND ALL AREAS ARE STABILIZED ~ + + 1 ~ \ 0 , r ' r r ' 7. WHEN CONSTRUCTI (FEMA) 100 YEAR FL000 ZONES UNTIL A FLOOD STUDY IS APPROVED BY ~ r r a COMPLETELY CALL 868-6415 FOR AN INSPEC110N BY THE ENVIRONMENTAL +1 + + ~ ~ ~ ` '90r ' ' WAKE COUNTY AND/OR FEMA. BEFORE ACQUIRING A BUILDING PERMIT FOR ~~1 ~ + ~ \ , ~ , ~ r
J ENGINEER. ~ ~ ~ ~ ~ r , r ! 90' r o LOTS OR OPEN SPACE) MARKED BY AN (ASTERISK), THE BUILDER MAY 1 1 ~ r r I , ? ' 'r'`- - -,~I ~ v1 ' ~I 1 ~ I ~ 1 ~
PROVED REMOVE TEMPORARY DIVERSIONS, SILT FENCE, CUSTOM ~ 1 ~ ~ , ~ , f I ~ B. IF SITE IS AP NEED TO OBTAIN A FLOOD HAZARD AREA USE PERMIT FROM WAKE COUNTY + ~ 1 ~ 6 ~ ~ i ' ~ ~ 90 r S BASINS, ETC., AND SEED OUT OR STABILIZE ANY RESULTING BARE ARE S ENVIRONMENTAL SERVICES. THE BUILDER'S ENGINEER, ARCHITECT AND/OR + 1 ~ . ~ / ~ z
ALL REMAINING PERMANENT EROSION CONTROL DEVICES SUCH AS VELOCITY i , ~ o 'gyp ' ' ' ~ / ~w , ,1 / Ex~sr~r~,~ PRi _ _ ~ 1- ' E~(PST Ip t ~I i
~ SURVEYOR AS APPROPRIATE) MUST CERTIFY THAT ALL FLOOD HAZARD ~ - ~ / / ~ ~ ~ s DISSIPATORS SHALL BE INSTALLED. (
0 9. WHEN VEGETATION HAS BECOME STABILIZED, CALL FOR A FINAL SITE REQUIREMENTS ARE MET. l5 INSPECTION BY THE ENVIRONMENTAL ENGINEER, JENNIFER MITCHELL, AT J \ ; VV. Co I~ ' 1; G VATS CRAINtA _ y 1
~ 919-868-6495. OBTAIN A CERTIFICATE OF COMPLETION. ~ ' ~ _ ~ ~ ' ' Ck ' _ _ ,
~ ' 'j - , ICII ~ I, r~~~ ~ ~ ~NAG~ I
. ~ ~ 11~ ~ 'j~~ I - ~ ~ r. vv ~ ~ 1~ it
TR L LEGEND ~ _ ' ~ - CON 0 _ / EROSIO i ~ , ~
~ FILTER BASIN ~ ~o ~ ~ ` I ui~ r ~ ~ 1~" I, ~ ~ X11 ~ r(„ ` ~ ~ ~ v•~i 11 11 p
Z TEMPORARY DIVERSION Ip f~ ~ ?

RARY SILT FENCE a TEMPO °°°°°~N °CAR~/°°°°°
00 ~ °Op000p° l /
RIP RAP CHANNEL/DISSIPATOR Z o°°~~°°°° SS1p yg ~ Q s o
U D 0 Q p ° ° ° ° ° ° o o ° °
TEMPORARY SWALE LINING ' ~ 62 '
m ~p GRAPHIC SCALE o r, o CAL aO co 'S~,/_°p t,' ~ ~,~i°p°~V o°° 60 0 3I 60 120
ORARY CHECK DAM TEMP W eope,°+7~' °00enpppp°°,((~ p0°°o ,W.
E. CP ° . °p°°oooo° a; p° ? j 1 irlcil - SO iL .
GRAVEL CONSTRUCTION ENTRANCE o t 1

m
M No. Revision Date B Designer Scale Sheet No,
W&R AS NOTED T A PER WAKE CO. & ToFV COMMENTS 7/27/11 GAS "WIGHTO C11 D iN FORE S o B REVISED SETBACKS PER ToFV 8/26/11 NJA Drawn By Date W-% ""RA"I"' n Er"(
n NJA GAS 3/8/11 PHASE VI-D u ge EROSION PLN WITHERa & RAVENEL CONTROL A ENGINEERS I PLANNERS I SURVEYORS
N Checked By Job No. 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] www.withersravenel.com License No. C-0632
Fu ua-Varina Wake County North Carolina JEC 2020179.30 o
i Y

i / , x / y~ , 1 j i I I 1 i 07 SLOPE ON TOP OF GUTTER (FLAT SLOPE)
~ i it / I ~ I II ~ / r' r' ~ 24" CURB & GUTTER - SEE PU+N FOR LEVEL SPREADER LENGTH A ' CURB & GUTTER
i / / / r ~r?` / i l t / r r 'I ~ , ~ (3,000 PSI MIN ~ i / / / / / / /r + ~ / / r ' ' ' , I P1 OMPRESSIVE STRENGTH l rr ® I C ) (3,000 PSI MIN ESSIVE STRENGTH) LEVEL SPREADER LIP ELEVATION=
. ~ i/ / r r r/ ~i i / / l / r / , ` y / / E=li- ~ 2°-a^ HIGHER ExlsnNC sLOPE GRATE OFFSET OVER STEPS ON DOWNSTREAM SIDE
\ ~ / r / 1 / / / , '1 11/:' , / /
\ \ \ , / / / / ~ / / / / / t ! / , , xy PIPE FROM BYPASS STRUCTURE DIFFUSED FLOW
1 _ r / / ~ l / THROUGH BUFFER B B . '"",^.fl
/ I _ \ \ I ~ , I}I I I
I Tf~ vv ~ 3b \ r' , ~ / 1: 1 l11~~1/~ n.~,,, .II~II~--:Ti;~-. \ , _ , \ , \ \ i \ ~ \ ' OHO' / ! f I i 1 Ill C-- r-• o 0 - , - ,,,,~.I ~li ~~-.~i-- ~'3~I Il;;xiil_..t 0 0 ~ ~ a ~ ~ ,I"~i ~I~~I~I~ li:~"I~
v v A ~ ? , r' ~ r' , ' 1 % ,'1 f l ~ ll~lll Ij~ i€L..,I`S ~Il~~~r . ' ' -K ~ ,r ' / l ll;lfl INSTALL CLASS CLASS A RIP RAP -
\ \ G/ / \~y' ' ~ ~l' ' ! l , 111 FROM OUTLET TO BOTTOM OF FOREBAY 1 " I _.a I , ~ ~ .~}-I ~ _ \ GJ / • \ - .1 ~ / / / 1 '1 f l 18" MIN DEPTH, 3' WIDE I i I. ~ i ' ~ r... I ~'1 I C.~) ° .k r ~ ~ sr "~"~r~' ~ ~ ~ i ) MIN I i t r=i 3 ~ ~ ~
, ! WIiH GEOTEXTILE UNER ~ I u' . ~ I ~ / ~"v , \ i A ~ / / J 71;111 I ~ -l ~ - -I ; - -r ~ a r I ENKAMAT 7020 OR il~-=
r ~7 , ~ I / / 111' 11 { I h _--I l=. - ~ ' _I I I_ . r i ~ f 2. 1-. ilk 13F tf{ d f-.. F ~^T.-- ~ I I~f I~ I ~ i EQUIVALENT DOWNSTREAM I I t ~ ~ ~ C.# I I ,I ~ ~ OF LEVEL SPREADER
•v . r ~ \ ,'C ' ~ .Y' ~ i 1 I' OPTIONAL \ ~ `•'J i/ %r `'v' 'K~ X / /,Iljll 4" PERFORATED
, A-' ` ,K I. ~ / / 1 PVC TO DAYLIGHT ` y : ~ ~ ' r' - ~ ' ' 1 100 YEAR FLOODPLAIN \ / ~ . r / a°-s" #57 wASHEO STONE wITH A 6" PRECAST CONCRETE NON-WOVEN FILTER FABRIC TOP SLAB WITH GRATE
\ ,i 'y i ' /1 PER WITHERS & WRAPPED AROUND STONE
o` } RAVENEL FLOOD STUDY \ i ~ 'Y' ~ ; ' / I I ' I TYPICAL FOREBAY LEVEL SPREADER .L SPREADER DETAIL PRECAST REINFORCED BOX
\ is / / / / ' ,i' _ r'\ \ r''`• ,rl / i i ' I
, / / / , , k ~ I , / Al / , I ~ 1
/ \ / r / / \ \ \
TOP SLAB D ETA L
- ,x:~ ',,1g0-YL~A&'FLOOD , ~ \ I / \ I NTS
/ -
'K / / / /
. i _ ~ / / BYPASS ~HI~NN L •
i - -105 SF , / 0 , ELEV - 278.32
EOREB~kY' / ' h0 41' LEVEL -I I
- - - ':Y' / SPREADER \ ' 1
- / ELEV=274.00
24" RCP
\ o ~ - ~ \ ' - . ' -
_ .
_ /
`•c
5'
ELEV - 275.82
\ ' J~~ / ELF ~=273.50 / , / r ,
. / / 1 ~ ~ I l I „~T 24" RCP DIP
010= 18.11 CFS =n . , \ / ? ' I ; / 18" THICK; CLASS 8 RIPRAP IPRAP TO LEVEL
\ , 1 II 1 , V= 7.19 FT/SEC ta., ~ , r + , WITH FABRIC UNDERLINER IER SPREADER
/ ~ + 1 r ELEV - 275.00
/ /
, \ i`
~ / 1 / ./r ~
POURED CONCRETE INVERT
/ ~ i' Il i \ , f ELEV - 274.00
/ i 1 r / rl \ ~I
SCALE; 1 "=30' LEVEL SPREADER SPLITTER BOX ~DB 620}
R H N S ECTI 0 N A-A NTS
„ # OF CALC. USE OVERFLOW IMPERVIOUS FOREBAY LEVEL LOCATION ~ 410 Q1 IHR INVERT DIAMETER LS LENGTH SPLITTER BOX DESIGN INFORMATION
SPREADER ~ ORIFICES HEAD HEAD ELEV. AREA AREA 6" SLAB TOP (SEE DETAIL)
# [CFS] [CFS] [FT] # [IN] [FT] [FT] [FT] [FTICFS] [AC] [SF] ELEV - 278.32 PRECAST REINFORCED BOX
105 USE 1.10 IN DIA. ORIFICE(S) 8~ OVERFLOW AT 275.82 FEET 1 DB 620 18.11 1.70 275.00 1 10 0.4 0.4 275,82 85 1,20 WITH 6" THICK SIDEWALL
18.11 0.81 275.00 1 8 0.2 0.5 275.82 41 0.50 44 USE 1.8 IN DIA. ORIFICES] & OVERFLOW AT 275.82 FEET 2 5'
_ , , _ I •
24" RCP
43" MIN. TO BYPASS CHANNEL ~ 24" RCP
51A6 TO BE COUNTER "SUNK t" IN DEPTH UNDER HANDLE
3l4` R 314" fi15M00TH BAR ' ELEV - 275.82 INFLOW
Y U '
Z
_J " I ~ I i ^1 ~ I 8" DIP 10" DIP
~ 2.3" x 114" TK. ROUND OR I l ~a z SLAB SgUARE CUT WASHER ELEV - 275.00
I ~
a ~ ~ ~ HANDLES 2 HEX NUTS
0 1' DIA. = 3" PIPE SLEEVE (TO ALLOW 12" 12" HANDLE TO MOVE FREELY r: N ) 4 PRECAST CONCRETE SLAB ~~4" PRECAST CONCRETE SLAB ~ POURED CONCRETE INVERT
N
DETAIL F HANDL p 0 E N B B'
PRECAST CONC. SLAB N ~ - ELEV - 274.00
PRECAST CONCRETE SLAB WITH N° ®6" O.C. E,W. ~ A B C OPEN
a• e° OPEN ALL 4 SIDES OPEN ALL 4 SIDES
~ 2 ,33 4 WEIR ELEV DI626 4 96 >T ' v° XISTING WEIR ELEV'
GRADE DI624 4 298.73 4 I •+;,?"?.^ea' ? ••0.'?A'°e. ?q.a. .~'b. '?,~'o.b.r..aa,^ !COURSE ~ LEVEL SPREADER SPL TTER BOX ~DB 62~)
a ' . a . a ' a ' ° ' a a ~ DI 623 6 290.50 4
~ °,?4 a ' ~ 6" PRECAST c SECT ON B~-B NTS
' C DI 622 ~ 291.83 4 : NOTE; CONCRETE WALLS
p ~ ~ a , EITHER SOLID BRICK, 50LID ~ ' d'. •a° BLOCK, OR PRECAST CONCRETE
~ . 35"MIN.. ~'e, w MAY BE USED, ~ A
eq ° m "
~ 'd'• z 'a • COURSE ~ CONCRETE WALLS TO BE 6 THICK.
~ ' ~ > STEPS REOUlRED ~ 16" O.C. ~ d ~ ? ~ THR UGHOUT WHER D P H * P o E E t RCP RC RCPT
a a EXCEEDS 5'. IN n o, OUT
~ PIPE _ ? 1 4, 4" USE ONLY 30W P.S.I. CONC, MIX.
N a e
Z ~ • a ^.a • a ' '1 a.ib •I' a,' d' ,a 'r?. a^t°'?
. ID- ?q•a ~ a: :.?^'o ; S a, + 6 MIN 6" MIN pp0uooooaa°o0p0
o NOTES:
- AR IN T 4NTH CONCRETE SLAB TO BE BUILT TO SEE STORM DRAINI PLAN PROFILE Y D ~ SHEET 4 FOR DATI ~ NOTE: fNSIDE DIMEN510N FOR 24' PIPE TOWN OF FUQUAY-VARINA STANDARD DETAIL 8.01 STORM DRAINAGE CHART °°°°°~~N CAROB EET 4 FOR DATA ~ ti~°°
N AND UP USE PIPE DIA. PLUS 12` • z o ~ a ° ESS! : °o o' o
0 c 0 Q ` ° D 0 O O ~ 0 Q
0 ~ STD. N0. o ° ° CRAPH9C SCALE YARD INLET DETAIL ~ ° ° o a; a °
TA DAR RD ITH ET LAB NTS ° ° ° ~ 1 ~
N 8.01 0 SECTION B-B NTS ~'9~°°/y~IN'~,'F.~O~~o 30 ~ 15 i 30 60
C e. c~~ ~ ` _ _ ° °p°oo°o00°0°00° 1 inch m 30 ft.
O L P
m i
M No. Revision Date B Designer Scale Sheet No.
BRIGHTON Fu"REST N A PER WAKE CO. & ToFV COMMENTS 7/27/11 GAS W&R AS NOTED WITHERS RAVENEL DRAINAGE DETAILS ENGINEERS I PLANNERS I SURVEYORS
o B REVISED SETBACKS PER ToFV 8/26/11 NJA Drawn By Date NJA GAS 318111
N P"HASEChecked By job No. 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] www.withersravenel.com license No. C•0832
i N F V ring Wake Count North Caro ina o JEC 2020179.30 u ua -a
i Y

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