20071579 Ver 1_More Info Received_20080528

LMG
LAND MANAGEMENT GROUP INC.
Environmental Consultants
TO: Mr. Ian McMillan
Division of Water Quality
1650 Mail Service Center
Raleigh, NC 27699
May 23, 2008
RE: Modification to the 401 Water Quality Certification Application
NC Center for Automotive Research; Northampton County, NC
DWQ Project # 07-1579
Dear Ian_
P Lg
MAY 2 S 2008
DENR • WATER GUAUTY
WETLANDS AND STORMWATER BRANCH
We submitted a 401 Water Quality Certification Application in September of 2007 on behalf of the North Carolina
Center for Automotive Research (NCCAR) for the construction of a facility devoted to automotive research and
development. The original project proposed to impact 3.28 acres of wetlands (2.81 acres of 404 wetlands and 0.47 acre of
isolated wetlands) and 140 linear feet of stream.
Since this submittal, the project engineer determined that the entrance road will need to be relocated slightly. In
addition, temporary dikes are now proposed. These modifications will increase proposed permanent impacts to 404 wetlands
to 2.94 acres and will require 0.076 acre of temporary 404 wetland impact. Permanent stream impacts will decrease from
140 LF to 130 LF. Temporary impacts to 84 LF of stream are also needed.
The increase in permanent wetland impacts is needed to raise the grade of the road to meet the 100-year flood
requirements for the two culvert locations. The temporary wetland and stream impacts are needed in order to install
temporary dikes at each culvert location so that the construction area can be dewatered. The seepage into the construction
area will be pumped into silt bags for filtering. Construction is being phased so that access to the site can be maintained.
The revised IP application form and maps are enclosed for your review. Please contact me if you have any
questions. Thank you for your assistance with this project.
Sincerely, ff\\AA
I --J
Kim Williams
Encl
C: Mr. Gary Brown, Northampton County
Mr. Mark Smith, McKim and Creed
Mr. Enrico Roque, HNTB
Mr. Thomas Brown, ACOE
www.lmgroup.net • [e-mail] • Phone: [phone] • Fax: [phone]
3805 Wrightsville Ave., Suite 15, Wilmington, NC 28403 • P.O. Box 2522, Wilmington, NC 28402
LMG
LAND MANAGEMENT GROUP INC.
Environmental Consultants
May 23, 2008
TO: Mr. Thomas Brown
U.S. Army Corps of Engineers
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
RE: Modification to the Individual Permit Application
NC Center for Automotive Research; Northampton County, NC
Action ID4 200703219
Dear-Mr. Brown:
We submitted an Individual Permit application in September of 2007 on behalf of the North Carolina Center for
Automotive'Research (NCCAR) for'the construction of a facility devoted to automotive research and development. The
original project proposed to impact 3.28 acres of wetlands (2.81 acres of 404 wetlands and 0.47 acre of isolated wetlands)
and 140 linear feet of stream.
Since this submittal, the project engineer determined that the entrance road will need to be relocated slightly. In
addition, temporary dikes are now proposed. These modifications will increase proposed permanent impacts to 404 wetlands
to 2.94 acres and will require 0.076 acre of temporary 404 wetland impact. Permanent stream impacts will decrease from
140 LF to 130 LF. Temporary impacts to 84 LF of stream are also needed.
The increase in permanent wetland impacts is needed to raise the grade of the road to meet the 100-year flood
requirements for the two culvert locations. The temporary wetland and stream impacts are needed in order to install
temporary dikes at each culvert location so that the construction area can be dewatered. The seepage into the construction
area will be pumped into silt bags for filtering. Construction is being phased so that access to the site can be maintained.
The revised IP application form and maps are enclosed for your review. Please contact me if you have any
questions. Thank you for your assistance with this project.
Sincerely,
Kim Williams
Encl.
C: Mr. Gary Brown, Northampton County
Mr. Mark Smith, McKim and Creed
Mr. Enrico Roque, HNTB
Mr. Mike Horan, DWQ
Mr. Ian McMillan, DWQ
www.lmgroup.net • [e-mail] • Phone: [phone] • Fax: [phone]
3805 Wrightsville Ave., Suite 15, Wilmington, NC 28403 9 P.O. Box 2522, Wilmington, NC 28402
APPLICATION FOR DEPARTMENT OF THE ARMY PERMIT
Privacy Act Statement
Authority: 33 USC 401, Section 10: 1413, Section 404. Principal Purpose: These laws require permits authorizing activities in, or affecting, navigable
waters of the United States, the discharge of dredged or fill material into waters of the United States, and the transportation of dredged material for
the purpose of dumping it into ocean waters. Routing Uses: Information provided on this form will be used in evaluating this application for a permit.
Disclosure; Disclosure of requested information is voluntary. If information is not provided however, the permit application cannot be processed nor
can a permit be issued.
One set of original drawings or good reproducible copies which show the location and character of the proposed activity must be attached to this
application (see sample drawings and instructions) and be submitted to the District Engineer having jurisdiction over the location of the proposed
activity. An application that is not completed in full will be returned
(ITEMS 1 THRU 4 TO BE FILLED BY THE CORPS)
1. APPLICATION NO. 1 2. FIELD OFFICE CODE 1 3. DATE RECEIVED 1 4. DATE APPL. COMPLETE
(ITEMS BELOW TO BE FILLED BY APPLICANT)
5. APPLICANT'S NAME 8. AUTHORIZED AGENTS NAME AND TITLE (an agent is not
NC Center for Automotive Research required) Kim Williams
c/o Mr. Gary Brown Environmental Consultant
Land Management Group, Inc.
6. APPLICANT'S ADDRESS 9. AGENT'S ADDRESS
P.O. Box 685 Land Management Group, Inc.
Jackson, NC 27845 P.O. Box 2522
Wilmington, N.C. 28402
7. APPLICANT'S PHONE NOS. W/AREA CODE 10. AGENT'S PHONE NO. W/AREA CODE
a. Business [phone] [phone] (phone)
b. Fax [phone] [phone] (fax)
11
STATEMENT OF AUTHORIZATION
I hereby authorize Land Management Group, Inc. to act in my behalf as my agent in the processing of this application and to furnish, upon request,
supplemental information in support of this permit application. SEE ATTACHED FORM
APPLICANT'S SIGNATURE
DATE
NAME, LOCATION AND DESCRIPTION OF PROJECT OR ACTIVITY
12. PROJECT NAME OR TITLE - NC Center for Automotive Research
13. NAME OF WATERBODY, IF KNOWN (if applicable)
Nearest Waterbody: Arthur's Creek
15. LOCATION OF PROJECT
Northampton North Carolina
COUNTY STATE
14. PROJECT STREET ADDRESS (if applicable)
Off of Lowe's Road
Gaston Township
Northampton County, NC
109@wvgt
m AY 2 8 2008
16. OTHER LOCATION DESCRIPTIONS, IF KNOWN DENR-,NtJERQU?
?n RgRN1µ
pNDS AND S,0R"
17. DIRECTIONS TO THE SITE
From 1-95, take exit 176 towards Garysburg. Turn left onto Lowes Road. Prior to entering Lowes distributing
center, turn left onto gravel road. This will lead you into site (see vicinity map).
18. NATURE OF ACTIVITY (Description of project, include all features) - The preferred project consists of constructing
a 3.7-mile ride and handling course, two vehicle dynamics areas, test laboratories, refueling station, and an
administration/ engineering building.
19. PROJECT PURPOSE (Describe the reason or purpose of the project) - To build specific features for use by the
automotive industries and academia in the pursuit of future transportation needs (See Project Narrative).
USE BLOCKS 20-22 IF DREDGED AND/OR FILL MATERIAL IS TO BE DISCHARGED
20. REASON(S) FOR DISCHARGE - To provide access to the site and for fill slope related to the track (See
Project Narrative).
21. TYPE(S) OF MATERIAL BEING DISCHARGED AND THE AMOUNT OF EACH TYPE IN CUBIC YARDS - Clean,
compacted sub-grade soil materials, clean ABC aggregate, pavement etc.
22. SURFACE AREA IN ACRES OF WETLANDS OR OTHER WATERS FILLED
Permanent Impacts: 2.94 acres of 404 wetlands, 0.47 acre of isolated wetlands, and 130 linear feet of stream
Temporary Impacts: 0.076 acre of 404 wetlands and 84 linear feet of stream
23. IS ANY PORTION OF THE WORK ALREADY COMPLETE? no IF YES, DESCRIBE THE COMPLETED WORK
24. ADDRESSES OF ADJOINING PROPERTY OWNERS, LESSEES, Etc., WHOSE PROPERTY ADJOINS THE WATERBODY
(see attached sheet)
25. LIST OTHER CERTIFICATIONS OR APPROVALS/DENIALS RECEIVED FROM OTHER FEDERAL, STATE, OR LOCAL
AGENCIES FOR WORK DESCRIBED IN THIS APPLICATION N/A
AGENCY TYPE APPROVAL' IDENTIFICATION NUMBER DATE APPLIED DATE APPROVED DATE DENIED
26. Application is hereby made for a permit or permits to authorize the work described in this application. I certify that the
information in this application is complete and accurate. I further certify that I possess the authority to undertake the work
described herein or am acting as the duly authorized agent of the applicant.
t
SIGNATURE OF APPLICANT DATE
18. U.S.C. Section 1001 provides that: Whoever, in any manner within the jurisdiction of any department or agency of the United States knowingly
and willfully falsifies, conceals, or covers up any trick, scheme, or disguises a material fact or makes any false, fictitious or fraudulent statements or
representations o r makes or uses any false writing or document knowing same to contain any false, fictitious or fraudulent statements or entry, shall
be fined not more than $10,000 or imprisoned not more than five years or both.
Originally Proposed Impacts (September 2007)
Impact # Proposed Im acts
Wetlands (Ac) Stream (LF)
1 0.87 70
2 0.69 70
3 0.56 -
4 0.03 -
5 0.20 -
6 0.06 -
7 0.01 -
8 0.04 -
9 0.18 -
10 0.04 -
11 0.13 -
12 0.47 (isolated) -

Total 404 wetlands: 2.81 ac
Isolated wetlands: 0.47 ac
140 LF
Revised Impacts (May 2008)
Impact # Proposed Impacts
Wetlands (Ac) Stream (LF)
I Perm: 0.98
Temp: 0.046 Perm: 75
Temp: 49
2 Perm: 0.71
Temp: 0.030 Perm: 55
Temp: 35
3 0.56 -
4 0.03 -
5 0.20 -
6 0.06 -
7 0.01 -
8 0.04 -
9 0.18 -
10 0.04 -
11 0.13 -
12 0.47 (isolated) -

Total Perm 404 Wetlands: 2.94 ac
Temp 404 Wetlands: 0.076 ac
Isolated Wetlands: 0.47 ac Perm: 130 LF
Temp: 84 LF
W
Temp. V
f?
LIP
n
404 Wetlands
Proposed Impacts to 404 Wetlands
Approximate stream location (as determined by staff of LMG
from maps and site visits; not based on surveyed information)
Preliminary; Not for Construction
Affm"rA P
Non
CD-1
Figure 10. Concept Design-1
Northampton County, North Carolina
Date: Mav 2aoR
A6
700' 0 700'
Scale: V = 700'

STREAM POINT #1

WETLAND IMPACT #1 =42,702.73 SF ---
TEMP. WETLAND IMPACT #1=1,988.99 SF
STREAM IMPACT #1 = 75 ;LF
\
TEMP. STREAM IMPACT #.1 =49 LF' ' • _ ????
\'`
\ J ;

os

v
•

i

PRELIMINARY: NOT FOR CONSTRUCTION
LEGEND WETLAND IMPACT #1 & STREAM IMPACT
---
j 404 wETUNDS MAY 15, 2008 Q
TEMPORARY IMPACT TO 4D4 WETLANDS
?4ififfifffffLfl+? PROPOSED IMPACT TO 404 WETLANDS NORTH CAROLINA CENTER FOR AUTOMOTIVE RESEARCH

----- LIMITS OF CONSTRUCTION 0 50' 100' NORTHAMPTON COUNTY, NORTH CAROLINA

-•--- APPROXIMATE STREAM LOCATION (NOT SURVEYED)
SCALE 1"=100' NNTB HNTB NORTH CAROLINA, 0
Role E. SIX FORKS ROAD, SUITE 200
343 igh, North Carolina 77609
PROPOSED ELEVATION
110
-------------
90
70
I l - V.JLU? UUUOLL
9'X 5' RCBC
- y -]
80 60 40 20 0 20 40 60 80 100
NTB HNTB NORTH CAROLINA' P. C.
LEGEND R343 aleiph,N-th C._1 1D17SUITE 609 200
HTEMPORARY WETLAND IMPACT NCCAR ENTRANCE ROAD
0 20' 40' CROSS SECTION - CULVERT #1
® WETLAND IMPACT
STREAM POINT #2
WETLAND IMPACT #2 = 30,762.11 SF
TEMP. WETLANb IMPACT #2 =1,314.68 SF
STREAM j IMPACT #2 = 55 LF
TEMP. STREAM`S, IMPACT 42 = 35 LF
- ------- ------
i
-
----- --------- - -
STR
PRELIMINARY: NOT FOR CONSTRUCTION
LEGEND WETLAND IMPACT #2 & STREAM IMPACT
404 WETLANDS MAY 15, 2008
TEMPORARY IMPACT TO 404 WETLANDS
PROPOSED IMPACT TO 404 WETLANDS NORTH CAROLINA CENTER FOR AUTOMOTIVE RESEARCH
0 50' 100' NORTHAMPTON COUNTY, NORTH CAROUNA
----- LIMITS OF CONSTRUCTION
NNTB HNTB NORTH CAROLINA, P.C.
.
0
---- APPROXIMATE STREAM LOCATION (NOT SURVEYED) 343RalalE ph, N SIX orth FORKS l ROAD,SUITE20
SCALE 1"=100, Camino 27609
? 130
L
PROPOSED ELEVATION

'S' X 9' 95B611-11
90
40 30 20 10 0 10 20
LEGEND
TEMPORARY WETLAND IMPACT
® WETLAND IMPACT
0 10' 20'
30 40 50
HNTB
1 NORTH CAROLINA, C.
R. E. SI% FORKS ROAD , SUITE I000
HNTB 14
Ral?lph, Nerth Carellna 27609
NCCAR ENTRANCE ROAD
CROSS SECTION - CULVERT #2
e Slx-=1 7-A Fer Index ?+ --tom,
W

H
M
U GRAPHIC SCALES DESIGN DATA
? 40 20 0 40 00 ADT =
-? ? ADT
PLANS DHV = %
4?0 25 0? 40 80
F
, D = %
E (HORIZONTAL)
PRO V = MPH
O
U 4?,' ?2 0 4 8
R R P
TTST
DUAL
ROFILE (VER
STATE OF NORTH CAR01,1NA
DIVISION (OF HIGIiWAYS
NORTHAMPTON COUNTY
LOCATION. ACCESS ROAD FROM SR 1604 (LOWES BLVD.)
TO NCCAR SITE
TYPE OF WORK: GRADING, DRAINAGE, PAVING, CULVERTS, EROSION
CONTROL, PAVEMENT MARKING, & SIGNING

PROJECT LENGTH
LENGTH OF ROADWAY =
XNTB a oa5. ; ?a °:; aoo00 ?.
0.42 MI. wro srsrnsxn sreclma+smxs
ENRICO A. ROO UE, P.E__
RIGHT OF WAY DATE: r w- -
PHILLIP E. ROGERS P.E
rxo,ecr naslcnmx
LETTING DATE: C.W. BRIDGERS, P.E.
xcoor wxrecr
N.2 45498 L t
_ 1 -
IvCOh1I°I.F,TF. Pd,A!?S
PItELID9I\AA7" 1 L?I:S
SEAL
15]64
iESS 7gkv? DEPARTMENT OF TRANSPORTATION
SEAL i FEDERAL HIGHWAY ADMMISTRATIO
198]4 /
PLAN WNTB
rstp. 10+00.00 1
TIE TO EXIST.
_E(- ST 10148.93
1254' LT.
EY- STAIG+7993
16.97'L
T.
- - Porsto l0 AO
-EY- POTSto. 11+19.04 - -- - --w
BEGINCONSTRUCTION BEGIN PROJECT
_ - STA/0+14.44
R=7'
STA10 5737'-
12.00'1
Q o N ?___
8 ? ?*
?R 30' _---___
-TIE r0 NIST.C&G ENO z-6•c&c-??. -
EY Sra a+72.42 L STa10+77,75 lz CAT-L
EY- P7 510.12?CIOS? 1609 RT.
SPECIAL CUT DITCH
SEE DETAIL 'A' 4 $ a
___-_ `
_ ? GRI.U-J50
2i' \ u
115
110
105
100
PREFORMED SCOUR HOLE - -- ??
- ??
o SEE DETAIL BELOW - ---' '\ - \ O

'. PI !to R+56.78 PI Sta 21+9759
- .. p = /6'56'47!'271 D = 33'49559lRTt
? D = IT 27' 33.9 0 = IT 27' 33.0•
L = 147.89' L - 29393'
T 74.49' T = 15/35'
R 500.00' R = 500.00•
DS = 40 mph OS 40 mph
PROFILE CULVERT HYDRAULIC DATA

* q =
DESIGN DISCHARGE 295 CFS
>< o?
DESIGN FREQUENCY = 50 YRs

125
125 P1 - 12+55.00 - - - - - -. , DESIGN HW ELEVATION 1113 FT _
-
I^ EL 114.46'
:
';' .. BASE DISCHARGE 379 CFS '
W VC '= 400" .. BASE FREQUENCY = 100 YRS
I K 185 BASE HW ELEVATION 1119 FT
OS = 70 nlp.N OVERTOPPING DISCHARGE - 653 CFS

120
....._.
_.._ '._.. ..
_.__ _. --. . _ _ _ ._. _ __ ._ _
.. _ - .. ..::
OVERTOPPING FREQUENCY= )5000 YRS
?_i. ...,- 120....
DB 815-840
P8 34-95
- Y- POTSt / +9 ,

pA
T
Ai
A PISto 11+54.03
PT o
S'
r
L
0. 43.0' IRTI

.?. D = 25'27'532'
9'
L = 9
7-
T = 4795'
"iou +ev.n.w.m ro s. is..m R 225.00•
F\
IN('fJD71°I,F
'H. PLANS
?. ^
PRF.1
1 \illh RY PLANS

END CULVERT
ST 20,1965

a'
PROP. 2 - 9,,5' RCBC 11 F F.
BEGIN CULVERT
STa19+9015
I r{rP.t
?. _i
-
N 32
493=___-- _
=
i
b r77 Z
m m

F E
l -

N LOWES HOME CENTERS INC V _,0 F? O
PROPOSED . OVERTOPPING ELEVATION = 1139 FT

\ 115
- _ - ....!+103038% '
.. ___....._...r____ _
.
. _
_ ......
_
... ..
(-X13000% " -_
`
_110

- - - - - - - - - - - - - - - - ---
``
g X
!TING
S!
E
105
_
o ti d , _ o GROUND

io
I? _
I ? _'
o
wl PROP.2 - 9'Ir 5'RCSC

100..

?
I
r
? N c
? ?
?
io i
m C m io n ut
n ut
n
n ut ? h ?
? ?
o
10+00 11+00 12+00 13+00 14+00 15+00 16+00 17+00 18+00 19+00 20+00 21+00
/
\ BEGIN SOIL & GRAVEL
STA23+1900
/ \ 12320' LT.
!
4e\
O
F .
Y
iC
s
F
?ytp
?A
c"T ?j
a k
00
00
PLAN
PROP. SOIL & \
GRAVEL ROAD
END ROAONAY \ I I \
PAVEMENT ? o
STA23+9400 1 11 8 BEGIN CULVERT \ \
END R-30' IZ' STA24+06.C0 N 57-025+6934 \
4200 LT. END R-30 -
---- 42.09 LT.
R?39 I EGIN i-39 F
- -- -
GRAU?50 UT-1
\ PROP. 2 -I 9'x5' RCBC
I
?\T /m
? I
i
i
a
HNTB
a/

O

24'
INf'OMPi.F F. PLANS
I'RF.LIMINA RYA PIs1AN5
END CONSTRUCTION
END PROJECT
-L- STA32+5215
4-
--- ----------
- - _
CAT1 _ ___
F ICJ "-? TO NCCAR SITE
-
II I
END 01YElr
STA.25+90.66
PI Slo 21+97159
6- 33'4D559'lRTJ '
0 = jr 27' 330' \
L = 29393'
T 15135' \
R 5ODW
DS 40 mph \
PIPE HYDRAULIC DATA p C I i -
DRAINAGE STRUCTURE NO.I EL • 24+30M
PROFILE DRAINAGE AREA = NA AC VC = 500' , -
125 DESIGN FREQUENCY = 50 YRS K 421
DESIGN DISCHARGE - 92 CPS - -DS = 80+ ntph
DESIGN HN ELEVATION = 1113 FT w
PI = 30+00.00 ?+ I'1
l00 YEAR DISCHARGE 113 CPS _ EL = 113.02 yn e
d
l00 YEAR MY ELEVATION - 1119 FT - VC 500,
OVERTOPPING FREQUENCY= 500 YRS i K 328 4vl ,
? ,.
. .____ ._ .:_.. _ _ _.. _ .. -. _.. OS = B0+ mph'.
_ _120 .. _ OVERTOPPING DISCHARGE ' 173 CPS '- -
x?
OVERTOPPING ELEVATION = 1139 FT l+K1.3036% f- -
AA8828/, PROPOSED o
115...
-p88287. l+10.63817
- - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - -
_ tos CULVERT HYDRAULIC DATA 14 ICE DESIGN DISCHARGE = 413 CFS EXISTING
DESIGN FREQUENCY = 50 YRS PROP.2 - 9x5'RCBC - GROUND - -
DESIGN HW ELEVATION = 111.3 F7 ...
BASE DISCHARGE = 508 CPS
100. BASE FREQUENCY - 100 YRS
BASE HW ELEVATION = 1119 FT
OVERTOPPING DISCHARGE = 774 CFS -
OVERTOPPING FREQUENCY= )500 YRS -'
OVERTOPPING ELEVATION - 1139 FT
l
t? n ti ,\ ` t; e C t0 t0 h l[`l P Q Q - - - ` V
21+00 22+00 23+00 24+00 25+00 26+00 27+00 28+00 29+00 30+00 31+00 32+00
PLAN °ooe
HNTB R4F498f? E_4
... „ .o .

TEMP. GRAVEL
CONST.ENTRANCE \
\ asEAL 4 e
15764
\F
\ Be \\ Wh
?\ \ LIMITS OF DISTURBANCE 4.72 AC

? \
_ 11
LIMITS OF CONSTRUCTION (TYP.) LIMITS OF DISTURBANCE ITYPJ - \
GoA \ _ \\ MAINTAIN E
w TER CROSSING
WATER S
NG

-

_J

?__
__________
- _

_ F_.
_ - -
Qy '------ _-?
-- - r
__

- -"
' --------- `?-----'--------

--- +
LTI
• v o

\
\\
SEDIMENT FENCE fTYP.I a ro \
I ' '
SPECIAL SEDIMENT
O
\
NoA \
I CONTROL FENCE (TYPJ, O
V
\ GoA v
j Wh

TEMP.ONERSION !TD-I!

1 I CLEARING AND GRUBBING
1 1 EROSION CONTROL FOR
1 - \ CONSTRUCTION SHEET - 4
PROFILE
125._. 125..._..
120 120.__.
715 .
_._ .?. .. _ _.. .: ._. _ __ - .. .-
110 ..f .. r. .. _., .. 110._-.
105
_. _.
. ..... --.. ,.. . ,:..
_ .. .. _. _ :. _.__ .:. ,?
...... ....:
.. _
__ ..
105._._
100... 100.....
10+00 11+00 12+00 13+00 14+00 15+00 16+00 17+00 18+00 19+00 20+00 21+00
PLAN HNTB w .. oh:;aoo 84598°!N
.. w SHE" 10.
? \ ? /1 ! lNGME[A lNGiNEEl3
^ ueo
?? \ \ / sFwE _
\ -? \ / \\ iy `15]64
- wh j .lf
BOB CrB
\ 1 \
\ TEMP.STREAM
\\ CROSSING
\ / \
____F______ __F._ ? ________________
--------------- ----------------
? % ?? ??
__-__ Ji ------------- -?-------------------
- - - - - - - - - - - - -
_y____-__
J' MIT, OF CONSTRUCTION lTYP.1
tn? SEDIMENT FENCE lTYP.I
Jf? LIMITS OF DISTURBANCE lTYP.1
?T SPECIAL SEDIMENT
CONTROL FENCE (TYPJ / LIMITS OF DISTURBANCE = 4.72 AC
?
0 \
•00 wh \
\
CLEARING AND GRUBBING
- EROSION CONTROL FOR
?\ CONSTRUCTION SHEET - 5
PROFILE
125
720
i
115 - .. .:?.:. ..
...105
..._100._.. ...-
21+00 22+00 23+00 24+00 25+00 26+00 27+00 28+00 29+00 30+00 37+00 32+00
PLAN :iNTB es,Ne, .o :z;aao° 845498E LF-C
E Er1cwEE. ??,\N Ulp??.•\\ Fia fii-n
TEMP.GRAVEL \ - SEAL
CONST ENTRANCE \ 15764 :
Be Wh
\
\
? LIMITS OF CONSTRUCTION lTYPJ SEE SHEET S
LIMITS OF DISTURBANCE fTYPJ CULVERT PHASING
PLAN
G?A NG
r A
r -- -
e_ - - - - --- - _ _ _
Z
_
7-- m
- D
. \\ -SEDIMENT FENCE (TYPJ \ - ' O
NoA \
\\ GoA `i Wh
\ 1
\ 1
1 \
1 \I
PROFILE CULVERT HYDRAULIC DATA
DESIGN DISCHARGE 295 CFS
W om - DESIGN FREQUENCY = SO YRS 125
d' 2 -- '- _ --_ -- DESIGN HN ELEVATION = 31/1 7 CF
-
735
-.Pl=-10
EL = 1114.48'4.48' BASE DISCHARGE
w VC = 400' - BASE FREOUENCY = 100 YRS -
W K = 185 BASE iNN ELEVATION 1119 FT
DS - 70 mwh OVERTOPPING DISCHARGE = 653 CFS
120. OVERTOPPING FREQUENCY= I I'S ,.: 120 _
PROPOSED OVERTOPPING ELEVATION = 1139 FT
i
\ . -.. 115 _..
115
!+103038%
- - - - - - - - - - - - -
-- -.-!)0.3000%.... '_-..-- ---'.' -' -
llo 4 -----------
105 - v Y owj g EXISTING J ... l05
GROUND - -- _.-
p -PROP.2 9'x 5'RCBC
100
100 .. ,.... W iW .. .. - --
_
10+00 11+00 12+00 - 13+00 14+00 15+00 16+00 17+00 10+00 19+00 20+00 21+00
NO, 1-
PLAN WNTB .,... RgEG R E =,. 276oo 51- NO.
---
?\ 15]64
Wh
`
?? \ \ \
?.`1 509 - \\ / \\ Cr8
1 v
\\\ 1 LIMITS OF CONSTRUCTION (TYR.) - - -
__..
\ \ -------------------------------------------------
L
i
LIMITS OF DISTURBANCE (TYR.)
/ SEDIMENT FENCE (TYP.)
'y dl SEE SHEET EC-8 / \\
CULVERT PHASING
PLAN / \?
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DRAINAGE STRUCTURE NO.1 EL - 118,05' -
DRAINAGE AREA = NA AS VC - 500'
125. DESIGN FREQUENCY = 50 YRS K = 421 DESIGN DISCHARGE = 92 CFS DS = 80+ mph -
DESIGN HW ELEVATION = 1113 FT PI • 3o+oooo
100 YEAR DISCHARGE = Ili CPS EL : 500'
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100 YEAR HAI ELEVATION = 1119 FT VC K 328
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120 OVERTOPPING FREGUENCY- 500 YRS - - -.. =
- - OS - 80+ mph
OVERTOPPING DISCHARGE = 173 CFS - - - "" " _ _ - - _ - PROPOSED
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OVERTOPPING ELEVATION 1I
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- 54' RCP. DESIGN DISCHARGE = 413 CPS -
EXISTING
DESIGN FREQUENCY 50 YRS PROP. 2 - 9'x5' RCBC - GROUND -
DESIGN HW ELEVATION = 1113 FT : -
- BASE DISCHARGE = 508 CPS -
100 BASE FREQUENCY 100 YRS
BASE HW ELEVATION = lug FT -'
OVERTOPPING DISCHARGE = 774 CPS
OVERTOPPING FREQUENCY= >500 YRS
OVERTOPPING ELEVATION - 1139 FT
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Date: May 2008
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200' 0 200' 400'
Scale: 1" = 200'
Preliminary; Not for Construction