SW3220301_Plansheet 6 - Grading_Drainage Plan_20220420

MAINTENANCE PLAN:
NOTE: SITE GRADING TO BE COVERED UNDER GENERAL STORMWATER PERMIT NCG 001000.
COMPLIANCE NTH THIS PERMIT IS REQUIRED IN ADD11ION TO THE FOLLOWING
MAINTENANCE PLAN REQUIREMENTS.
The following maintenance plan shall be followed until the site is completely stabilized after
construction. During construction the Contractor shall be responsible for inspection and
maintenance of all erosion and sediment control structures.
1. All erosion control measures shall be checked for stability and operation following any
rainfall producing runoff and at least once every week. Any needed repairs shall be
made immediately so that all erosion control measures are maintained as designed.
2. The sediment traps shall be cleaned out when the level of sediment reaches the
depth point below the weir elevation. Washed stone shall be cleaned or replaced when
the sediment pool no longer drains properly.
3. All seeded areas will be fertilized, reseeded as necessary, and mulched in accordance
with the seeding specifications in order to maintain a dense vegetative cover.
4. Sediment deposits shall be removed from sediment fence after each storm event or
sediment fence should be replaced. They must be removed when deposits reach
approx. half the height of the barrier. Any sediment deposits remaining in place
after the sediment fence is removed shall be dressed to conform to the existing
grade, prepared and seeded.
5. Inspect check dams and channels for damage after each storm event. Remove sediment
accumulated behind the dams cis needed to prevent damage to channel vegetation. Add
stones to dams as needed to maintain design height and cross section.
lxku=
rr
10
RIP RAP
SPILLWAY L. 560.3
012119M
TOP OF DAM
L. 561.5
04A
A
em
1) Top 8" of subgrade of building pads and pavement areas to be
compacted to minimum 100% std. Proctor maximum dry density.
2) Subgrade of driveway and parking areas to be proofrolled prior
to stone placement.
3) ABC stone to be compacted to 100% of std. Proctor.
4) Concrete Mix for building pad and paved areas shall be in
accordance with Union County and Town of Wingate's Standards
and Specifications.
5) Culverts denoted as HDPE shall be high density polyethylene
ADS N-12 Type S or equal. Culverts to be double walled with
corrugated exterior and smooth walled interior. Pipe and fittings
shall meet the requirements of AASHTO M-252 for sizes 3" to 10"
in diameter and M-294 for sizes 12" and larger.
6) All earth fill to be compacted to minimum 95% of std. Proctor
max. dry density.
7) Bituminous pavement to be compacted to 92% of lob density as
determined by SUPERPAVE Method.
8) Traffic control in accordance with the Manual on Uniform Traffic
Control Devices (MUTCD) shall be utilized whenever work is being
performed within the right of way.
9) It is the responsibility of the contractor to locate all utilities prior to
beginning construction.
10) All work within Right of Way shall be in accordance with
NCDOT Standards and Specifications.
I I Wnrow-Now"Boarw"PWW
OFF -SITE BORROW AND DEMOLITION REQUIREMENT-6
Any off -site borrow and waste required for this project must
come from a site with an approved erosion control plan, a site
regulated under the Mining Act of 1971, or a landfill regulated by
the Division of Solid Waste Management.
Trash/debris from demolition activities or generated by any
activities on site must be disposed of a a facility regulated by
the Division of Solid Waste Management or per' Division of Solid
Waste Management or Division of Water Resources rules and
regulations.
NOTE:
PERMANNENT DRAINAGE DITCHES TO BE STABILIZED WITH
NAG S75, OR EQUAL UNLESS OTHERWISE NOTED ON PLANS.
Storage USA, Inc.
4 724 Old M onroe- Marsh ville Road
Marshville, NC 28103
!Contact: Danny Jordan
1,1704-361-3619, [e-mail]
US H\NY. 74
1001 PUBLIC R\\N (PC. M, FILE 699)
LIGHT STATE PROJ. # 8.1691802
POLE ohe ohe- --
POLE
e
kR\O
• A
.Jk11
NARRATIVE:
Mini Storage USA is a proposed mini -warehouse project located
off Hwy 74 in Wingate NC (Union County). The scope of work
includes clearing, grubbing, and grading for building pads. Scope
also includes the installation of temporary skimmer basin, silt
fence, coir mesh wattle check dams, stone base, and pavement.
The disturbed acreage is 1.8 acres.
Based on USDA Web Soil Survey data the area soils primarily
classify as u , a Kadin -Urban land complex indicative of
hydraulic group C.
BUILDING PAD ROOF PITCH NOTES
Proposed building slabs to be constructed on a 1% longitudinal
slope in order to utilize Trachte building system.
Roof pitch of exterior buildings to sloped inward toward interior
of site in order to direct all impervious runoff toward the
proposed Skimmer Basin/SCM.
ohe R\\N
'Job
- - - ------- - ---- ---
r. 3 LIGHT
r-3 ohe - - ---------- \W
56
LIMITS OF CONSTRUCTION
R\W METER 50&5
WATE Z T SHOWN OFFSET OF PROPERTY
T
m LINE FOR CLARITY
0
OCL
0) ,j LAJ
00 or
COIR FIBER PIN: 09054017H Lii
LIMITS OF
O-RILLY AUTOMOTIVE STORES,
WATTLE (TYP)
INC.
CONSTRUCTION (Vv IN I V)
'-PMR DB. 7303, PG. 474
POLE PC, P, FILE 326 Pcx�
PERMANENT DITCH (PD1) <C top.
AVG SLOPE = 1.4%
1 euuar� Pao ea
lei I ( PERMANENT DTCH PD2)1 U
FFE=564.5
Pad Sla&od
01.0
ilk
■
■
V
I CL
EA
X
,Pcd Slci�ed
G ItTIVITIESJJI
Ar
y.
WVJ WMI &S WJ 0 1 N I k1l 1 -4 lk"111111 10 1-] -,4 &V ee Detai i nis ne
*TTOM BASIN ELEV / SKIMMER INV: 555.5
KIMMER CREST / RISER INVERT: 559.3 (8470sf]l
MERGENCY SPILLWAY ELEVATION: 560.3
it OF DAM ELEVATION: 561.5
01.
■
a a
PIN: 09054040A
CHILDREN OF TODAY CHILD
DEVELOPMENT CENTER, INC.
is 6747, PG. 31
PC. M, FILE 699
■
09 Of Z,/ oiln
X PIN: 09054036
0_7 JACOB CLONTZ &
IrS KAYLEIGH BIVENS
DB. 7701, PG. 23
RIPRAP TEMP SILT FENCE
SEWER PRON SILT FENCE ALONG ENTIRE LENGTH
MANHOLE Al STONE OUTLET OF TOE OF FILL SLOPE
LIMITS OF T I f f PIN: 09054037 (TYPICAL)
NORMA MATTHEWS WORD
SHOWN OFFSET OF PROPERTY SILT FENCE DB. 6143, PG. 31
LINE FOR CLARITY PIN- 09054038A STONE OUTLET
JAMES LEO GOSS, 11
DB. 3523, PG. 64 (TYPICAL)
NOTE -
PROPERTY BOUNDARY AND FIELD TOPO DATA PROVIDED BY
LAWRENCE ASSOCIATES, 106 W. JEFFERSON ST.,
MONROE, NC 28112, 704-289-1013, www.lawrencesurveying.com
A 0, 01, 0 11 1 #0 0
1:11:1 WIF, F.111 ill 1:4,11 111 W11 kilo
TO BE INSTALLED PRIOR TO SKIMMER BASIN
CONST. SEE DETAIL ON SWMP (SHT 5)
40TE:
kEFERENCE SWMP DETAILS (SHT 5) FOR DAM
RE TRENCH.
- . ­ __ - - ____ __ A - .- - - - /
Right-of-way
cTL =
Utility Pole
RCP =
Reinforced Concrete Pipe
A A =
Riprop Outlet Protection Apron
FES =
Flared End Section
_816- =
Existing Grade Contour
_818- =
Proposed Finished Contour
---p- TD --Cx- =
Temporary Diversion
=
Fire Hydrant
=
Wattle Check Dam
=
Temporary Skimmer Basin
=
Temporary Silt Fence
=
Limits of Construction
DROJECT CONSTRUCTION SEQUENCE:
1. Obtain plan approval and required permits prior to beginning work.
2. Flag the work limits to prevent unnecessary clearing.
3. Install temporary sediment fence.
4. Construct permanent SCM outlet and riser. of SWMP outlet structure detail
5. Construct skimmer basin and temporary diversions. Skimmer to tie to permanent SCM
outlet structure.
6. Clear and grub area to be graded.
7. Strip and stockpile topsoil for future use.
8. Grade area to proposed grades shown.
9. Provide roue cover within 7 days on perimeter areas and slopes greater than 3:1 and
within 14 days on all other areas. For specific Stabilization requirements NCGO1 Ground
Stabilization and Material Handling note (Sheet 9).
10. Permanent roue cover must be established within the proposed ditches and channels.
I ionaI ec an cc measures may be required If the vegeta ive cover cannot
established as proposed.
11. Maintain soil erosion control measures until a permanent ground cover is established.
12. Additional erosion control measures may be required based upon specific site
conditions.
xtene area o ski rner asih o remain in place until permanent ground is ul
established in upstream drainage basin. Extended skimmer basin area to filled and
compacted to limits of permanent Sand Filter SCM. Reference Sht 4 for final grading.
14. Add earth berms as required along top of fill slope to direct water runoff into parking
lot interior toward skimmer basin.
15. Stabilize ground cover of compacted area with gravel and seed & mulch berms as
re airs . aintain area until er anent round cov r is established.
16. Convert skimmer basin into permanent Sand Filter SCM in accordance with "Stormwater
Management" plan upon completion of grading activities.
GRAPHIC SCALE
0 4U 80
IN FEET
1 inch = 40 ft.
THIS �OiiUM
N, RASTURMENT 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
MOLE OR IN PART, NOR USED
ON ANY OTHER PROJECT
WITHOUT WRITTEN PERMISSION.
""0 CAPO,
0
L
..............
% IAI
fill
Kevin E. Herring
ENGINEERING;
161'0 1 Silver Road
Oakboiv, NC28129
980-621-0935
'TE. 12/15/20 DA21
HORIZ. SCALE40'1
I'VERT. SCALE = NIA
iDRAWN BY. keh