20081817 Ver 1_More Info Received_20090220

? ? ? Kimley-Horn
and Associates, Inc.
February 19, 2009
Ms. Cyndi Karoly
NC Division of Water Quality
2321 Crabtree Blvd.
Raleigh, North Carolina 27602
u ' Qry
F EB 9, 0 2009
CH
DENR-WAFER QV ?RBRAN
??pp1DS AND STORM
Re: NCDWQ Project # 08-1817 - Northeast Judd Parkway Extension
GC 3704 PCN Application Additional Information Request
Wake County, North Carolina
Dear Ms. Karoly:
On December 10, 2008, we submitted a Preconstruction Notification Application
on behalf of The Town of Fuquay-Varina for authorization to construct the above
reference project under General Water Quality Certification Number 3704. We
subsequently received two separate responses from your office, dated December
22, 2008 and January 5, 2009, requesting additional information about this
project. Please note that we requested an extension to the 30-day response
deadline prior to this submittal. The requested information is provided below
and in the attachments included with this letter.
The following additional information was requested in your letter of December
22, 2008:
This office believes that the skimmer basin labeled on the plans at Site I
can be moved or reconfigured to avoid the impacts to the wetland.
Please revise the plans to minimize the impacts.
The wetland area proposed to be impacted by the skimmer basin shown
in the plans is located within both the permanent right of way and the
construction easement for the project. The possibility of relocating the
skimmer basin was evaluated, and it was determined that even if the
basin was relocated out of the wetland, this area would still be disturbed
during construction of the project due to the proximity of the wetland to
the road. It is also worth noting that the original alignment of Judd
Parkway was curved to the south to minimize impacts to wetlands as
much as possible.
The area proposed to be impacted by the basin totals approximately 118
square feet in size. If it were possible to work around this tip of
wetlands, additional easement area would have to be obtained to relocate
the skimmer basins. This would also result in a small patch of wetlands
being cut off from the remaining wetlands located downstream across the
road and from its hydrology source, causing the avoided wetlands to
eventually convert to an upland area. Finally, protecting this area from
¦
P.0 Box 33068
Raleigh, North Carolina
27636-3068
¦
TEL [phone]
FAX [phone]
the disturbances and sediment runoff of the surrounding construction
would be impractical. Due to these considerations, we do not believe
that it is possible to avoid impacts to this wetland.
2. This office believes that the rip-rap pad and pipe outlet channel labeled
on the plans at Site 2 can be moved or reconfigured to minimize the
impacts to the wetlands. Please revise the plans to minimize the impacts.
The plans have been modified to avoid this impact. The pipe and outlet
structure have been moved to the east, and are now located outside the
wetland area. Five sets of revised plans (8 'h" X 11") showing this
change are included with Attachment A. Please note that the plans
include a table that reflects the updated impact totals. The total wetland
impact has been reduced from 0.70 acre to 0.68 acre. Impacts to isolated
wetlands remain the same (0.22 acre).
The following additional information was requested in your letter of January 5,
2009:
Per the requirements of the Neuse River Riparian Buffer Rule, you must
show that this site meets diffuse flow requirements with a level spreader
or other BMP per Chapter 8 of the BMP Manual.
Level spreader calculations are included in Attachment B to demonstrate
that the site meets the requirements per Chapter 8 of the BMP Manual.
Full sized plan sheets that show the detail for the level spreader are also
included.
2. Please submit a Level Spreader Supplement Form with all required items
for each proposed level spreader.
The requested Level Spreader Supplement Form is included in
Attachment B.
Thank you for agreeing to allow additional time beyond the 30-day response
window to gather the requested information. If there is any additional
information you need to assist in the processing of this application, please do not
hesitate to contact me at [phone].
Very truly yours,
KIMLEY-HORN AND ASSOCIATES, INC.
Todd J. Tu 11
Environmental Scientist
Enclosures
Cc: Mr. Jay Meyers, Public Utilities Director
Attachment A - Revised Permit Figures and Impact Table
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WETLAND WETLAND STREAM STREAM STREAM STREAM BUFFER
IMPACTS IMPACTS IMPACTS IMPACTS WIDTH IMPACTS IMPACTS IMPACTS
(FT) (ACRES) (FT) (FT) (FT) (ACRES) (FT)
IMPACT ONE
(RIPARIAN) 2,258 SF 0.05 AC 0 LF 0 LF 0 SF O AC 0 SF
IMPACT TWO
(RIPARIAN) 8,373 SF 0.19 AC 0 LF 0 LF 0 SF O AC 0 SF
BZ 1:
IMPACT THREE
(RIPARIAN) 13,664 SF 0.31 AC 206 LF 6 LF 1,236 SF .03 AC 14,849 SF
BZ 2:
9,009 SF
BZ 1:
IMPACT FOUR 0 SF O AC 143 LF 6 LF 858 SF .02 AC 9,038 SF
BZ 2:
5,709 SF
IMPACT FIVE 5,225 SF 0.12 AC 0 LF 0 LF 0 SF O AC O AC
IMPACT SIX
(RIPARIAN) 9,732 SF 0.22 AC 0 LF 0 LF 0 SF O AC O AC
(ISOLATED)
29,520 SF 0.68 AC

TOTAL (NON-ISOLATED) (NON-ISOLATED) BZ 1:

IMPACTS 349 LF 12 LF 2,094 SF .05 AC 23,887 SF
9,732 SF 0.22 AC BZ 2:
(ISOLATED) (ISOLATED) 14,718 SF
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Attachment B - Diffuse Flow Calculations and Level Spreader Supplement Form
Q?
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NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely filled out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)!
I. PROJECT INFORMATION
Project name NE Judd Parkway Extension
Contact name Matt `West, PE
Phone number 919-677-4194
Date January 16, 2009
Drainage area number

r
Il. DESIGN INFORMATION
-
For Level Spreaders Receiving Flow From a BMP
Type of BMP
Drawdown flow from the BMP cis
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
Impervious surface area
Percent impervious
Rational C coefficient
Peak flow from the 1 in/hr storm
Time of concentration
Rainfall intensity, 1 0-yr storm
Peak flow from the 10-yr storm
Where Does the Level Spreader Discharge?
To a grassed bioretention cell?
To a mulched bioretention cell?
To a wetland?
To a filter strip or riparian buffer?
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass
Width of dense ground cover
Width of wooded vegetation
Total width
Elevation at downslope base of level lip
Elevation at top of bank of the receiving water
Slope (from level lip to to top of bank)
Are any draws present?
Level Spreader Design
Forebay surface area
Feet of level lip needed per cfs
Answer "Y" to one of the following:
Length based on the 1 in/hr storm?
Length based on the 10-yr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
17,103.00 - 'ftz
6,653.00 ftz
38.90 %
0.56
0.22 cfs
5.00 min
6.5 in/hr
1.43 cfs
N (Y or N)
N (Y or N)
N (Y or N)
Y (Y or N) Please complete filter strip characterization below.
30.00 it
0.00 ft
20.00 ft
50.00 it
362.50 - fmsl
361.20 fmsl
2.60 % OK
N -: (Y or N) OK
14.00 sq ft OK
34 ft/cfs
Y (Y or N)
N (Y or N)
N (Y or N)
0.25 cfs
Y (Y or N) OK
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I, and II. Design Summary, page 1 of 2
Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
B
W
y
Peak velocity in the channel during the 10-yr storm
Channel lining material

15.00 ft Level spreader length OK.
N (Y or N)
N (Y or N)
Y (Y or N)
G.JV IL
0.00 it
10.00 ft
2.00 it
2.51 cis
PSRM
t
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1
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M M
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Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and II. Design Summary, page 2 of 2
III. )ITEMS CHECKLISTy:`
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.
Pagel Plan
Initials Sheet No.
MW 8,8-A 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.
MW 2-C, 8 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.
MW 2-C 3. Section view of the level spreader (1" = 20' or larger) showing:
Underdrain system (if applicable),
Level lip,
Upslope channel, and
/ Downslope filter fabric.
MW v 4. A date-stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
MW `
? 5. A construction sequence that shows how the level spreader will be protected from sediment until the
/ entire drainage area is stabilized.
MW v 6. The supporting calculations.
MW
y 7. A copy of the signed and notarized operation and maintenance (0&M) agreement.
MW N/A 8. A copy of the deed restrictions (if required).
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part III, page 1 of 1
® Kimley-Horn
®® and Associates, Inc.
Job
Designed by
Date
Subject
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Sheet No. 01_
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One of FORTUNE's 100 Best Companies to Work For
Worksheet for 67+05 to 67+54 -L- (LT) - Bypass Channel
Project Description
Friction Method Manning Formula
Solve For Normal Depth
Input Data''
Roughness Coefficient 0.035
Channel Slope 0.02600 ft/ft
Left Side Slope 2.50 ft /ft (H:V)
Right Side Slope 2.50 ft/ft (H:V)
Discharge 1.43 ft'/s
Results
Normal Depth 0.48 ft
Flow Area 0.57 ftZ
Wetted Perimeter 2.57 ft
Top Width 2.39 ft
Critical Depth 0.46 ft
Critical Slope 0.03219 ft/ft
Velocity 2.51 ft/s
Velocity Head 0.10 ft
Specific Energy 0.58 ft
Froude Number 0.90
Flow Type Subcritical
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 fUs
Normal Depth 0.48 ft
Critical Depth 0.46 ft
Channel Slope 0.02600 ft/ft
Critical Slope 0.03219 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
1/19/2009 2:25:30 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 1 of 1
September 28, 2007
View from inside 20' wooded buffer looking out toward 30' of grassed buffer.
Permit Number:
(to be provided by DWQ)
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 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 immediately.
BMP element: Potential problem: How I will rernediate 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 e 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 DWQ)
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: NE Judd Parkway Extension
BMP drainage area number: Permit Impact Site #2
Print name: AnJv fledtriL-
Title: Town Malt aaer'
Address: 4©t VIA Nonevcyft f2oa?? FiJgdcty-Ilgl't'?a.,1?lG 2752(0
Phone: ( 1119) - ! L(O (
Signature:
Date: 2'h-
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, Tea r_' s. Q_• !?X)Ld" h , a Notary Public for the State of
County of??? , do hereby certify that
1y2 a personally appeared before me this
day of r? i-, and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements
Witness my hand and official seal,
SEAL
My commission expires ") ) ?s ) C)U i
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev. 3 Page 3 of 3
PLANS PREPARED BY:
Kimley-Horn
and Associates, Inc. PO 80X 33068
~L RALEIGH, NC 27636-3068 3 PHONE: [phone]
DETAIL 7 DETAIL 2 ~ ~ TO~~ ROTE ~ I SPECIAL LATERAL 'V' DITCH FALSE SUMP o t Not to Sca~et FAX: [phone]
'ROTECTION ©2°G7
( Not to Scale) (Not to Scole) 2/ to Scale)
Outside Ditch ~ FCq TF 2.~~~~~ Fill
No+urol ~ ~ keC Fill Trafifiic Flow Z ~O~ Z, ~ Slope F Cround p ~p'c Slope d F~P~ Slope I S PRELIMINARY PL.~AI~TS
0o Nor vs ras aaNernvc~mN
d= 2 Ft. PEFC3RME C®U H L
Min. D= 1.5 Ft. 5 - etc. *NOT TO SCALE
S=Ditch Slope f~ Proposed Ditch Type of Liner= PSRM PLAN VIEW INSTALL LEVEL AND FLUSH SEAL ;r= PSRM WITH NATURAL GROUND
FROM STA. 17+00 TO STA. 19+00 -L- (R~ STA. 27+55 -L- (Cn FROM STA. 29+35 TO ST FROM STA. 21+50 TO STA. 22+70 -L- (R~ FROM STA. 34+50 TO ST FROM STA. 35+00 TO STA. 36+04 -L- (RT) FROM STA. 36+76 TO ST FROM STA. 35+00 TO STA. 36+50 -L- ~L~
PLANS PREPARED BY: 15 TO STA. 30+32 -L- (RT)
i0 TO STA. 3b+Ob -L- (RT) a S ' ei ce t
'b TO STA. 38+49 -L- (RT) Pipe or Ditch ~ GIBSOhi
i0 TO STA. 75 + 74 -L- (RT) Outlet ENGINEERS, PC
FROM STA. 37+00 TO STA. 37+50 -L- (R7) FROM STA. 74+50 TO ST FROM STA. 43+50 TO STA. 46+00 -L- (R7) FROM STA. 75+43 TO ST FROM STA. 47+50 TO STA. 48+80 -L- (Ln FROM STA. 80+50 TO ST FROM STA. 48+80 TO STA. 50+00 -L- (C~ 13 TO STA. 75 + 60 -1.- (LT)
PO BOX 700 i0 TO .STA. 83 + 50 ~ (LT1 A A Fl10UAY°VARINA, NC 27526
FROM STA. 88+25 TO ST FROM STA. 55+00 TO STA. 58+95 -L- (Ln 5 TO STA. 88 + 50 -L- (RTj PHONE: [phone] FAX: !9191552-2254
FROM S7A. 68+50 TO STA. 69+00 -L- (Ln
FROM STA. 76+79 TO STA. 79+00 -L- (RT) Square Preformed
FROM STA. 87+00 TO STA. 92+50 -L- (LT) Scour Hole (PSH) (4 m
FROM STA. 16+60 TO STA. 17+50 -Y3- (Ln Rip Rap in
FROM STA. 16+60 TO STA. 17+50 Y3- (R'~ ~asi i not shown A B PRELIMINARY PLANS
fo c arity)
Sss t i n Ilat B= 4 FT B= 4 FT
D = 1 FT D = 2 FT
W= 4 FT W= 4 FT sEAL
DETAIL 4 DETAIL 8 ~ X DETAIL 10 SECTION A A
TOE PROTECTION g ~ SPECIAL LATERAL 'V' DI 2,, c Not to calel FALSE SUMP o c Not to scale) DITCH Fj PIPE (d = 15" OR 18")
Kale) ~ s~Op
~ o,Q ~ t Not to scale) o _
T R ill PSRM
FfIIF Z~'~~~ Slope Outside Ditch ~O'~,~e< Slope ~,P Trafftc Flow ~z,pl~._ Natural A~ X 0~ ~ Fill F 1` MIN. - 3' MAX. A.~ D~~e Slope INFLOW _ _ NAT_URA_L
I~ GROUND
d Filter gyp: 20e1 r~ Ground 2/ p ~o
d= 2 Ft. Fabric d Gi Min. D= Min. D= 1.5 Ft. LINER: CLASS B RIPRAP ~ gel
MaX. d= 2:0 Ft. WITH TYPE 2 FILTER FABRIC ( MIN.1`TUCK o
Type of Liner= Closs 'B' Rip-Rap `5- etc. Filter, Max, d Fabric h
FROM STA. 21+75 TO STA. 22+60 -L- (L~ S =Ditch Shope ~ P~oDOSed Dttch
FROM STA. 27+50 TO STA. 28+40 -L- (R1~ STA. 65+55 -L- (R'n Type ofi Liner= Class 'B' Rip-Rap Rip_Rap \
FROM STA. 28+35 TO STA. 28+50 ~ (Cn STA. 68+45 -L- (Cn FROM STA. 48+00 TO STA. 48+8
FROM STA. 28+47 TO STA. 30+00 -L- (R'n FROM STA. 67+60 TO STA. 69+0 STA. 48+80 -L- (RT) USE DIMENSIONS "A" ~
FROM STA. 60+20 TO STA. 61+50 (R7) STA. 69 + 00 -L- (RT) STA. 19 + 50 -L- (LT) c
STA. 24 + 04 -L- (LT?
USE DIMENSIONS "B" o
STA. 37 + 86 -1.- (LT)
STA, 41 + 00 -L- (LTj ~
STA. 58 + 95 -L- (LT1 ~
STA. 66 + 17 -L- (LT)
STA. 67 + b0 -L- (RTC ~ ~ ~
STA. 7b+78 -L- (RTC ~ ~
~c
DETAIL 13 DETAIL 14 DETAIL 17 :1~ ~ a 3
o PIPE OUTLET CHaNNE~ SPECIAL LATERAL 'V' DITCH CUT DITCH
o (NOt t0 SCale) ~ NOt to Scale) (Not to Scale) TCH kale)
ta+uroi xat~rai ~ FIII crouna ~Tr~ ~,e°~ w-ouw Natural p: ~~'Cg~ SIOPe ~ p< g< Front ~ Ditch
Q p~,\O,~~e~ Slope
B~~ o ~'~t d= I.0' Ground / ~O Natural A~ d D Ground 2,~ p Flo F\ ~ Z
0
g cwNr~~ ago Min. D= 2A Ft. Max. d= I.0 Ft. Min. D= I Min. D= 1,5 Ft. ~ i
~I, ~ Length= Ft. 1Y°`10D1B1
Q D= iFt. FROM STA. 22+70 TO STA. 24+ STA. 24 + 00 -L- (RT~~~. ~
o Est.= 28 Tons ofi Class 'B' Rtp-Rap Type of Liner= PSRM FROM STA. 24+50 TO STA. 27+ STA. 27 + 50 -L-- (LT)
Z STA. 41 + 00 -L- (LT)
~ FROM STA. 67+05 TO STA. 67+54 -L- (L~ FROM STA. 38+50 TO STA. 41+ STA. 48+80 -L- (RT) FROM STA. 65+00 TO STA. 66 z FROM STA. 75+60 TO STA. 80+50 -L- (L~ FROM STA. 65+00 TO STA. 65+
~ STA, bb+17 -L- (LT)
FROM STA. 83+50 TO STA. 87+00 -L- (L~ STA, 65 + 50 -L- (RT)
0 0
W
0
0 a
3 a
S
i
KHA PROJECT#;
011612001 DATE; 1'19.1009.
~ 0 2009 90% P S
r~~~ps~~~sri~ ~4~~~~
°o
N
N

-L- -L - PLANS PREPARED BY.
PREFORMED SCOUR HOLE I STRUCTURE N(),37 OUTLET PROTECTION PI Sft? 62+OI. _L _ STRUCTURE N0.40 STRUCTURE N041
-L- STA 65$50 fRTI ~ ~ , Sta 62+01.70 -1- sra 68+so rtr, -L- sra 67+63 rcr,
uuv IN = 369.50 CLASS B RIP RAP 32'25 EST 5 TONS = 32° 25' 55.6` l RT 1 PI Sta 81 +7T.65 ,NV our =36425 nuvv ,N rsE, = 3625 54' l3' 44.,E fRT 1 r°PEE® 2Gl-B 84OJ8 ~ OUT rME, m 3625
EST 8 SY FF D °6'09' 3~ h = 6' 09' 39A' D = 3' 22' 132` GRATE: 84o2s roP ELEV =366.7
' t0 EST 25 SY PSRM OUTLET CHANNEL L = 526.42' STRUCTURE N0.38 = 526.42' L = 1,609Ar W PMH u~ Kimley-Horn
-c- STA 65+TO rcT, SEE DETAIL 5 S AIL = SHEET 2-F T 270.47° ENV OUT. ~ 368.62 OUTLET PROTECTION SHEET 2-E 270.47° r = 870.4' srRUCTURE No.42 and Associates, Inc
~ ~ SPECIAL LATERAL 'V' DITCH R = 9300' RANSDELL. N.F. HEIRS CLASS B RIP RAP LOW POINT - 9300' -L- sra 67+64 rLT, Po BOx 33068
EST 3 TONS BYPASS CHANNEL + _ SE = 04 w8 966 PG 0-E ~ SEE DETAIL 14 STA. 67 89 L- _ ~R` - 1,70~/0.00~ ,NV OUT = 362A6 STRUCTURE Na43 RALEIGH, NC 21636-3068
PT f f 7 EST 10 SY FF 50 NEUSE S 4. ~ 5.65 SHEET 2-E SE - 0'T L- ~rl~ 67+~ rLrl FA~~ 919 677-( 05000 INV OUT • 36,50
RIPARIAN TRIG TO TERRIBLE CREEK ©2007
SPECIAL CUT DITCH BUFFER -I R P JURISDICTIONAL SEE DETAIL II 8 5 C
, STREAM SHEET 2-E 4 12 RCP
(RELATIVELY C ~ CONC. LEVEL SPREADER PERMANENT WATER ~ 0 l~
+57.65 ~ E EV tTOP EDGEI=362.80 JACK$ON~ ROBBIE L. ET AL L DB 9347 PG 2558 F ~ B ~ 2009
+65 ry ~ T.5 SY PSRM FOREBAY C ~ EE TAIL 9 EST I TON CL B RIP RAP B' RIP RAP PRELIMINARY PLANS
O - - - +75 ~ SHE 2-F EST 0.5 TONS '57 STONE •57 STONE D~N~-~a~~fta~~i~v ~~,~?~II
OI" ~__--b -E YFF W ~ 5a +ao EST 5 S ~TLNNDSt~ND STOR~~~'A'f~R 9RANG#i
~ W ` - , a ~ 65' 88'-15' RCP TOP ELEV=362.50 W T _ _ _ - , ~ 38 ry BOTTOM ELEV=361.50 .50 361.50
; Z + ~ ti +80 FALSE SUMP N ~ ~ 1~•• ~ ~ ~ C ~ SEE DETAIL 12 SHEET 2-F ~ ~ 8o SEE DETAIL 8 SHEET 2-F - - t 7 ¢ 7 7 =
~ o ~ ~ PDE SHEET 2-E -L2- PC Sta.73f07,17 SEAL
_ ~ ~ Q M G d +65 SPECIAL LATERAL +50 'V' DITCH PLANS PREPARED BK
J O N ~ ~ 3S0 F 1- h~ _ 0 75 Q Q, b ~ O O F r + 50' SEE DETAIL cn ~ 90
~ n N 0 HW Fi 42 ~ ~ _ _ - t~ o ti 3 5o SHEET 2 E JURISDICTIONAL WETLAND
W - - _ _ _ _ +57.65 O N _ ' ; JB ~ +40 _ _ - ..I li.l - 1 50' O - ? ~ 75' (DIRECTLY ABUTS IBS®~
r~: I 41 p F . ,9 1 r _ ~ _ 37 0 _ s "fr A RELATIVELY /h ENGINEERS, PC
~ X ~ 68,-~ ~ +75 +75 PERMANENT WATER)
G 8 RCP ~ 50' +40 RAU G~4U ~ ` C 3S0 39 3Sp 40 GI-B 50 Po Box 700 FUQUAY-VARINA, NC 27526
s ~ 50' - - ~ 2 F~ ~ a ` r ~ R ' PHONE: [phone] FAX: [phone]
' R H~ ~ S C F ~ , +r. `
+70 ~ HW I +bo m F ~ q6,g.
F 50 ~ F E t. +50 F ~ s ~ ~ JNC 24' ~ ~ . ~ ~ a
F 85 3S0 Iq ~
+40 v ; S CIAL CUT DITCH ~w ` -L2- +07.17 ~ ~
SE DETAIL II 50 F v~ C SHE T 2-E +2 ` _ ~ \ ` ~
0 ~ ' 5 ' PRELIMINARY PLANS ~ \ \ ` uo xar oee ~ oor~rawcrcox
~ FALSE SUMP - ; 7o F _ N ~ ~ F R -L2 +9 ~
SEE DETAIL 8 90 ~ ~ H T f ~ S EE 2°E 70 ~ ' ~ O a ~ ~ 50
~ ~ ,
t ~ ~ +50 ~ ~ 50' N N . _ o o
~ E ' ! JA SON. BBIE L. E ~ +70 ""E F ~ SEAL ` \ 0
OB 4T PG 25 ~ SPECIAL LATERAL 'V' DITCH 'V' DITCH - ~
` 115 WITH CLASS 'B' RIP RAP. +00 RAP. ~ ~ O ~
~ , 100 EST 70 ONS ry x EST 160 SY FF
SEE DETAIL 10 ~ti
~ SHEET 2-E ~
- ' ~ -BL- 718
V b ry -12- +07.17 R~ 50' C F ~ ~ Qv
~ ti -c- sr~ s7+9s.Z9 ®FF 73,60 r
ELEV-367.57 RANSDELL, N.F. HEIRS e INLET CHANNEL INSTALL TOE %
wB 966 PG 0-E SEE DETAIL 16 °BL-119 RL• 119 PROTECTION ~ y
SHEET 2-F •t-STA 71 +74.95 OFP 73.OS' RT SHEEDE~AE 3
PR F R LOUR HO -L-STA 71 ~ I EOMEDS LE ' ELEV=378.. -BL-116 ~ 50 NEUSE OUTLET PROTECTION ELEV=378.23
RIPARIAN BUFFER CLASS 'B' RIP RAP
-L-STA 53+65J1®FF 107.22 RT -BL-117 EST 5 TONS
E =380.48 EST 8 SY FF -L- STA 65+ .84 OFF 84.46'RT EST 25 SY PSRM
ELEV=372.0 ° SEE OETAIL 5 NOTE: SEE EROSION CONTROL PLAN FOR SKIMMER BASIN ~
SHEET 2-E 0 AND SEDIMENT TRAP DESIGNS & LIMITS OF CONSTRUCTION
I ~ s € ~ - ~ - - - - - - Q r ~
i~ ~ ~ r~ 7. t _ _t - - . , . ~.T~, i ~ T _ . _ 5___._ ~ _ r. - - Z
- - - - - - ' . I T - a , L , 1 ~ ~ ~ ~ ~
, . i ~ i f~- . . i . . . . . . ! ! i . - i - . : ,m PIPE HYDRAULIC DATA , ~ ~ T PIP HY R ATA ~ - _ _ ~ _ - ~ T E D AUUC D -
r-: m , - - _ . ~ . F T-.,._~ T ~m ~ ~ - - , _ ~ r ~ I 37 ~ , ~ T 68' 8'RCP ~ . Q r 39 ,0' X 9' RCBC lBUR,ED r1 ~ ~ 42 ® 2 _ _ _ - -i
420 ~ , _ ~ ,~,n ~~~a~,wa ~ ~ ~ ~ o.~,z ea...~ . ~ ~ .~.~~_~~5. I ..mwsrsa'aawsmwsxc'.suu'au~m ~ Qom.
I ~ ; . ~ _ _ ~ I ~ ~ - - - - ~ _ DRaNAGE AREA 0,60 AC - _ `y - : , . - , _ µ DRAINAGE AREA 326 (Q~ r
' ' ° ~..1,. I ~ s- T~~ - BL I16 f DESIGN FREOCIENCY 60 rRS --._r. BL Ill -r ~ . ~ x DESIGN FREQUENCY 50 YRS ~ _ ° o _ DESIGN DISCHARGE 650 CFS T ~ ~
- ~ . -~-T. 3 ~ 2.6 CFS - - ~ _ --a _ ~ - I ~ _ - _ ~ L - STA 63+65.711107,22 RT J _ . DESIGN DrSChARGE ~ , L STA 65 $52.84 (84.46 RT I _ I
Q - ~ . , DE ELEV ; _ ~ -i = _ _ _ ' SIGN MN ATION 370«36 FT - ELEV. - 380.48 ~ _ _ r ELEV. - 372.04 ~ - ~ -DESIGN HW ELEVATION 365A5 FT - - - ~ ~ ~
~ - o, 41 . _ . _ ; 100 YEAR D15CHARGE 2B CFS r.._~ _ ~ _ _ ~ _ ~ _ -i-- .wusnv..~.n.. ~ ~ ~ . . - - . _ _ i - 100 YEAR DISCHARGE 75Q CFS . 41 O °r °
' 100 YEAR HW ELEVATION 370A0 FT .W. ; _r. ; R. ~~u. ~.W ~ . ~ ; I -t z , ~ ~ ~ NG E BL 8 - 100 YEAR HW ELEVATION 367,15 FT "~~w"~~~~~~ - - -,-T~:_., . OVERTOPPING FREQUENCY - YRS =:T. ~ ~ . , . _ a. ti
_ OVERTOPP/ FR OUENCY - YRS - v. - . , f.
_ . ' - OVERTOPPING DISCHARGE CFS ~ - - ~ ` 5 -..-..-J .R-....--~-~-- .~.m_m ~_~__w_~ ' _ L STA 67$96.29 173.60' RT) i , . i : ! - : ~ T OVERTOPPING DISCHARGE CFS _ _____T__.~ ~ _ OVERTOPPING ELEVATION - FT _ _
- ~ -OVERTOPPING ELEVATION FT ~ _ ~ , , - . 3 i~ _ ~ , ~ ~ : ~ . ~ E ~ . ~ ELEV. 67.5 - _ - ~ _
r I - T~° _ - 400 ' ~ ~ I I k wrcemsw ' ~ 400
I 6 {)QO_ ~,v [ ( I . ~ ~ . ~ . . ~ s- ail . n ~ , ~ 4 _ n I . , - - - - r-~ . ~ n s ~ ..v~ f .w-.m.~..wmMr.mn...w a _ i _
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4 I ~ ~ ~ F t ..~.............j...,.. . _ u _
s I ' # • } = ~ PR0 oSEa GRADE
~ J ~ , . . _ . ,r r 380 , . , ; , ~ a m~ il ~...w EXISTING GROUND ~ - , ~ 30 (~~1~51Y
e , ~r~~ w a. _ q i _ ~ ~ ~ ~
TT . I T ~ - - - _ . ~ . _ T ~ ~ ~ ~ . . r . _ ~
1. y .--r--- i O ~ ~ - - - - - _ j- 1 i £ 4 ' i .t I __-4 r ~ t , _ _ ~ 1 . 1~ _ _ _
J T _ . i f . ~ y ~ m. x. 5 -.-.T.... T rN^ j ~ 3 II - ' _
W _ . . . . - . w ~ "".`R-~~ I ' 370 _ ~ ~ , - - ~ _ 370
„W i . «,.~w.~xa~.~~~sa~ 5~.~xe~ a~;~r.~~:G~~.r.~, :.s. x .,,::~R; ,..s,~:~~;~.~wxw.~; ..r. . ~s:.. ~~an. . ~d r..,~~ ~x~xis~;~ ! ~s..a. ~u~u ...~.a - ~ , o ~ BE DITCH LT _ ~ i ra. ~ ~ ~ - I
- ~ ~ ~ O; E S~ , 65 00.00. _ ~ - ~ -1~ . > ~ ~ - - ~
r_. ~ ~ , ~ r ~ (~F - - - r s, l ~ ~ - - ~ ~ T . V , _372 ~ I 1T' ` E ' ~ e ~ - M u _ A I i i ~
o ~ T..__4. _ rr,_ ~ 7 - ~ . _ . ~ _ ~ 0 bT ~~ID-_-:D)T CH_tT - - - - , I „ i~irr ii ~ ~'1 _ ~
r - T __H R7`,- - - - - - ~ ~ _ y~ _ ; - r . ~ rt-T _ -r _ - ~ 3b0 - _ ~ _ a
360 _ . 0 ~ ~ ~ ~ ~ 3_ a.ti .m: .~aaEa.~A„A. ~ k ~ _ r ~ -any ~ ~ v ~ ,s.. ,~h u r_„ _~_<< r- - - - - - - t
~_r, . ~ R ~ BL 1l9 ~ ~ - ~ KHA PROJECT#:
- i . ..._r i. . i ~ ~ - ---I-._ - - - - - - - T ! ~ . i FAD CH . _ T _ a - - STA-6Z~60:0 _r ~rv - w ~ -L- STA 71+74.95 (73.05' RT) - - , - - 012611001
y _ _ ~_._r _T._.._r r__~~~ _ . ~ , a - , -END~_. D T~)-R~' - - - /h+ R - - ~~A _ 6~- ~:0~~---- I t _ - _ _ : ~ _ _ _ _ _ ELEV . . ^T_ _ x~ r ~ - - - - - - - - - - ~ - (F`/ R _,_T ~ r DATE: -
I ~T.,_..~.~__ . _ Y~T_A_.6. +5Q.00-_~ _ _ r , ; ~ r - - ---~~Ert/ . 69::0 : _ . ~ _ I ~ I . _t ~ . - T~. ELL V s - ~V.23' ~ ~ _ , - _ 350 1.19.1009
~,-r. - - - - ~ - ~e_.a,. u~ :w.~ I . ~ ELEV~~~3 369.51 , _ _ . _ .AEG D)ICt_). LT _ _ BE~Di_T fit... Ll._ h k , . r---- ~ - , . _ _ E
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