SW3220301_Plansheet 4 - Grading_Drainage Plan_20220519

US H\NY, 74
PUBLIC R\W (PC. M, FIDE 699) ohe --- R\\N
100 1691802 ohe ohe
STATE PROJ. # 8. ohe
LIGHT ohe — — ------ 'LIGHT
POLE — ohe POLE
3he
0
N86.25 231 159.36 ------
P
LIGHT
------ _b 769 N
ohe
---------- one EX CURB __­­--:Z:_,�-_-: ­ 7— W R\W
G
0
67
V
WA
TERS —
METER Z 565.5 1:3 0
1 7 1 1-1
;up- 01 9 LLJ
0 0 23
\11 I L
C,0T
KWER
POLE ` \ �1 121-1
PERMANENT DITCH (PD1)
AVG SLOPE = 1.4%—
BYPASS ROUTING OF OFFITE AND
ON -SITE NON -IMPERVIOUS FLOW
PIR: 09054040A
CHILDREN OF TODAY CHILD
DEVELOPMENT CENTER, INC.
DB. 6747, PG. 31
PC. M, FILE 699
20'x 26'(520sf) SAND FILTER
WITH 6" PVC UNDER DRAIN SYSTEM
TOP OF WASHED STONE EL - 557.80
TOP OF SAND EL-557.63
MIN. SAND AREA = 520 SF
MIN. SAND DEPTH
PERMANENT DITCH (PD1)
AVG SLOPE = 1.4%
ZYPASS ROUTING OF OFFITE AND
ON -SITE NON -IMPERVIOUS FLOWXs
PIN: 09054017H
0 YJ -- I ,
0 0 : GN
h N O'RILLY AUTOMOTIVE STORES,
0 ___1
ON- -OCK PERMANENT DITCH (PD2) INC. cr
:7
;4: LU
-No AVG SLOPE = 2.5% D13. 7303, PG. 474
co
BYPASS ROUTING OF OFFITE AND PC. P, FILE 326 __-Z)
0- ON -SITE Q­
NON-IMPERVIOUS FLOW
coa-
0
0
00 CD
0.)
0
—ROD—
-0
�O
_08 z 0
CL (D I b
to 10 1
X
(A (A
(A SEWER— — — —
163 sf. (Deed Overlap) ANHOLE— — —
0 0
0
U 0 33*36'55"E 106-22—
NE
5
77
_E E
X UG I
0
0 9 - — _'­T
4ore
700 POLE
0 2 0 -7
0
h ----562—
-0 CO,
Roof Pitch
01
Prop. Bldg #80040) 11 0)
PIN: 09054034A
JUNE MINCEY
to (A 0 D13. 4513, PG. 774
0
0
qD
M
0
10 V11
0 4
0 0 00,
7
PIN: 09054035
J FRANCES B. KNIGHT
DB. 3594, PG. 838
0 IN
&
,4
401
5
55
;�W
1 ,atVVr_M
0110 MANHOLE
PIN: 09054040
e-MINJ STORAG :E,/ USA, INC/
/DB. 824' PG. 2
PC. FILE 69
CONCRETE OUTLET STRUCTURE
(SEE DETAIL SHT 5)
S3
al
PIN: 09054036
",g/ JACOB CLONTZ &
7- r
oT
KAYLEIGH Aq�o A�D 1 11� DB. 7701, BIVENS PG. 23
SEDIMENT sib 1.
41� I
IDPAD AP ON
510r1M1v1Dr_ 1� X I— Z (��) SEWER
(FOR AY} MANHOLE
PIN: 09054037
NORMA MATTHEWS WORD
PIN: 09054038A P
JAMES LEO GOSS, 11 F DA
DB. 3523, PG. 64
DB. 6143, PG. 31
8 ED / �tA" associated'joints
�
� 0 LOP v Oier�flcoi Is
shall have sea
BUILDING PAD / ROOF PITCH NOTES
Proposed building slabs to be constructed on a 1% longitudinal
slope in order to utilize Trachte building system.
lRoof pitch of exterior buildings to sloped inward toward interior
;of site in order to direct all impervious runoff toward the
iproposed Skimmer Basin/SCM.
NOTE:
PROPERTY BOUNDARY AND FIELD TOPO DATA PROVIDED BY
LAWRENCE ASSOCIATES, 106 W. JEFFERSON ST.,
MONROE, NC 28112, 704-289-1013, www.lawrencesurveying.com
US HWY. 74
IW PUBLIC R\W (PC- U, FILE 699)
STATE pRoj, # &1691802
SCM MAINTENANCE
EASEMENT (SCALE 1 =100')
STREAM CLASSIFICATION
Receivinq Stream Rays Fork
River Basin Yadkin Pee —Dee
ROTE:
NO JURISDICTIONAL FEATURES IDENTIFIED WITHIN PROPOSED PROJECT AREA AS
DETERMINED BY FIELD STUDY PERFORMED BY LARRY THOMPSON, SOIL SCIENTIST.,
THOMPSON ENVIRONMENTAL CONSULTING, P.O. BOX 541, MIDLAND INC.
STORMWATER NARRATIVE
Mini —Storage USA is a proposed mini —warehouse project located
off Hwy 74 in Wingate NC (Union County). The site is in the
Yadkin Pee —Dee River in and drains to Rays Fork Creek. Th e
site is in the Town of Wingate Zoning District. Stormwater is
regulated by NCDEQ.
A Sand Filter SCM is proposed to provide the required water
quality treatment and water quantity runoff controls as required
by NCDEQ & Town of Wingate.
It is anticipated that the mini —warehouse units will be
constructed in 3 phases. The development is proposed as "high
density". The SCM is designed to treat and control a built upon
area of Cl"cres at ultimate built out.
Do
12 1 0 r TI
ontrolled Post Developed 1
Design
Pre—Devel.
i Peak
Discharge
Runoff
Peak Elevation
558.26
L 559.58
F_
4.15 cfs
9 03 IIII Cfs 56i III 0.05
12.22 cfs
Ref. HydroCad
Analysis
f5iMi I I
- _ --- -_ --- Iw 0110��
1. Upon completion of Phase 3 site grading, construction, and stabilization of upstream
disturbance notify NCDEQ Land Quality for review and approval prior to beginning
conversion of the skimmer basin to Sand Filter SCM.
2. Upon approval, floating skimmer to be modified to allow skimmer basin to fully drain.
Skimmer to be removed and outlet structure orifice to be protected with temporary silt fence
prior to sediment removal.
3. Sediment to be removed from basin and properly disposed.
4. Subgrade of SCM to be constructed to grades, specifications, and details shown on
approved plans.
5. Sand chamber to be constructed in accordance with SAND FILTER AND UNDERDRAIN
CONSTRUCTION (Sheet 5).
6Upon completion of sand chamber construction, disturbed sediment chamber area Io be
stabilized with SOD per plan specifications. External embankment and other areas not
draining to sediment chamber to be stabilized in accordance with seeding specifications.
7. Temporary silt fence around sand filter chamber can be removed and r1prap berm installed
once SOD has begun to root.
8. Follow Erosion Control Construction Sequence (Sht 6) for maintenance and removal of
remaining site construction erosion control measures.
LEGEND
R/W
= Right-of-way
7L
= Utility Pole
RCP
= Reinforced Concrete Pipe
A A
= Riprap Outlet Apron
_816—
= Existing Grade Contour
_818-
= Proposed Finished Contour
* PD*
= Permanent Diversion
I I Sf- or a ge USA, Inc.
4724 Old Monroe—Marshville Road
iMarshville, NC 28103
iContact: Danny Jordan
i
1
'704... 361-3619, [e-mail]
GRAPHIC SCALE
0 39 ISU
w4dlil_ -7-
IN FEET)
1 inch = 30 ft.
THIS DOCUMENT, PRESENTED AS
AN INSTURMENT OF SERVICE, IS
INTENDED ONLY FOR THE
SPECIFIC PURPOSE AND CLIENT
FOR WHICH IT WAS PREPARED.
IT SHALL NOT TO BE
REPRODUCED OR COPIED IN
WHOLE OR IN PART. NOR USED
ON ANY OTHER PROJECT
WITHOUT WRITTEN PERMISSION.