SW4220801_Plansheet C-1.4 - Grading_Drainage Plan_20220825

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NOTE. NO WETLANDS ARE LOCATED WITHIN THE
AREA OF THE PROPOSED DEVELOPMENT AS THE
ENTIRE AREA OF PROPOSED IMPROVEMENTS IS
CURRENTLYAN AGRICULTURAL FIELD THAT IS
REGULARLY DISTURBED. THE FLOODPLAIN AREA HAS
NOT BEEN EVALUATED FOR SUCH FEATURES
e---, L3
MOTES CREEK SURFACE AREA SHOWN
PER SURVEY SHOTS ON TOP OF BANK
w/30' VEGETATED SETBACK.
TOTAL ONSITE AREA = 21,036 SF
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MARK WAYNE & DONNA T SHARPE
167903
ALAMANCE COUNTY
DB 3518 / 277
SIZE. 86.73 AC
USE: GENERAL FARM
WESTERN BOUNDARY DEFINED BY
THE CENTERLINE OF "MOTES
CREEK" PER EXISTING BOUNDARY
SURVEY BY BOSWELL SURVEYORS,
INC. JOB NO. 20-101-400 DATED
411612020 U /
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I JERALINE M CURTIS
161902
ALAMANCE COUNTY
DB 30571993
SIZE: 39.89 AC
USE: GENERAL FARM
L�
MOTES CREEK SURFACE AREA SHOWN
PER SURVEY SHOTS ON TOP OF BANK
( w/30' VEGETATED SETBACK.
/ TOTAL ONSITEAREA = 21,036 SF
MELVIN DENTON
161953
ALAMANCE COUNTY
DB 4134 / 478
C - SIZE. 12.17AC
USE: VACANT
10'Wx15'Lx22" T CLASS B
/ RIP RAP AT THE
DITCH/DIVERSION OUTLET
22
\\ 14769 SF
0.80AC /- 25
/Y 23 I 24 �/ 3147S SF�3022 I I 263161 SF
72 - - L - - 72-M - - - - v by H� - 33360 SF
0 Ar ---a 3
� "Y ✓ I 0 77AC I
/ , --- - _ 27
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\ \ / �- J 43676 SF I 1111 �I
/ PD-1 DRAINAGE AREA / I C \
/ _ _ 1.00A_
/ 21
5641 SF I \ PD-1
/ 2.20 AC
� �M
/
411
EX. TREELINE
h �6 41
°
\ y52
5Q
/ ZONE AE (100 YEAR) Slob
�r%.cscs�si%ai:
41
h
5gs
rA
4? by / / / 556
II h 5p5 / hh h�M h� h 35LF 75" CLASS IV RCP: yob / h" may/ �,1 \
1 INV. IN = 535.00 o ha 9�
I / a / PD-2 5y
� INV. OUT = 534.65 � � h h `�
/SLOPE = 1.00% .g6 20 \ 30LF 15" CLASS IV RCP:-
\ 65820 SF / \ OUT 536.00
1s1.ac INV.
\ \ SLOPE = 2.00% PD-2 DRAINAGE AREA
/ 1 � / -562
A
oma Lx22"T CLASS
RIP RAP AT THE 18
I I DITCH/DIVERSION OUTL�T 30854 SF \, - - 16
0.71 AC
1 30444 SF /
- - \ 0.70 AC / 32078 SF 32501 SF I
V 19 I 0.74 AC 0.75 AC I 4 _
5;"87 SF- _ / 36726 SF
i I I r 1.36 AC I\ I I I 0.84 AC
/� PHASE
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LOT 21 OFFSITE I / �o J I I / \ l 44479 SF
SEPTIC SOIL I I \ / �`' / %� \ 1.02 AC
SUPPLYLINE J\ /°
/\ EASEMENT
Ile 12
e'7580 SF
LOT 21 \ \ \ \ / /
N\ \ \ /
� \ \ w A\ \ \ � OFFSITE
AREAL i \ PHASE 6 LOTS 1-13 y5 /
SUBMITTED / 51
w
SEPARATELYAS
\\ sw I I \ I \ PRELIMINARY PLAT 10
by
ON 11/02/21 47580 SF
1.09 AC /
9 /
47580 SF
1.09 AC
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N GRID COORDINATES
D 83(2011)
809532.69
1912817.73
75LF 78" CLASS IV RCP.-
INV. IN = 556.80
INV. OUT = 556.05
SLOPE = 1.00%
MARVIN MORROW NEWLIN REV
TRUST
161902
ALAMANCE COUNTY
DB 22121146
SIZE: 298.8 AC
USE: GENERAL FARM
L, L,
L, L, NOT SURVEYED DUE
TO FLOODING AT
TIME OF FIELD WORK
FLOOD PLAIN AREA
GRADING AND STORM DRAINAGE NOTES:
1. EXISTING TOPOGRAPHY & SITE CONDITIONS SURVEYED BY TRIANGLE SURVEYORS, DATED JUNE 15, 2021.
2. ALL PIPE TO BE INSTALLED ON -SITE AND IN THE RIGHTS OF WAY SHALL MEET OR EXCEED THE NCDOT ASTM AND
AASHTO SPECIFICATION REQUIREMENTS FOR SUCH PIPE MATERIAL.
3. ALL ON -SITE PIPE SHALL BE INSTALLED MEETING COVER, BACKFILL AND BEDDING REQUIREMENTS PER NCDOT OR
THE MANUFACTURER'S RECOMMENDATIONS, WHICHEVER IS MOST STRINGENT.
4. CONTRACTOR SHALL FIELD VERIFY THAT PROPOSED GRADES MATCH EXISTING PAVEMENT AT ALL
CONNECTIONS/TIE-INS. CONTRACTOR SHALL NOTIFY ENGINEER IF DISCREPANCY OCCURS.
S. ALL WORK WITHIN NCDOT ROW SHALL COMPLY WITH MOST RECENT NCDOT STANDARD SPECIFICATIONS FOR
ROADS AND STRUCTURES, NCDOT STANDARD DRAWINGS, AND THE MUTCD STANDARDS.
6. ALL ONSITE STORM DRAINAGE CONSTRUCTION SHALL COMPLY WITH MOST RECENT NCDOT STANDARD
SPECIFICATIONS FOR ROADS AND STRUCTURES, AND NCDOT STANDARD DRAWINGS.
7. THE GRADE LINES DENOTE THE FINISHED ELEVATIONS OF THE PROPOSED SURFACE. GRADE LINES MAY BE
ADJUSTED AT THEIR BEGINNING, ENDING AND AT STRUCTURES AS DIRECTED BY THE ENGINEER IN ORDER TO
PROVIDEA PROPER TIE-IN. CONTRACTOR SHALL FIELD VERIFYALL PROPOSED INVERTS, FFE'S & FINISHED
SURFACES TO ENSURE THAT MINIMUM SLOPE & COVER REQUIREMENTS ARE PROVIDED PRIOR TO INSTALLATION
OF REFERENCED ITEMS. CONTACT ENGINEER WITH DISCREPANCIES.
8. THE EARTHWORK ON THIS PLAN DOES NOT NECESSARILY BALANCE, • OFFSITE BORROW OR WASTE MAY BE
REQUIRED AND SHALL BE INCLUDED IN CONTRACT PRICE/BID. OFFSITE BORROW/WASTE AREAS SHALL BE
PERMITTED.
9. ALL PIPE INVERTS TO BE VERIFIED IN THE FIELD PRIOR TO CONSTRUCTING GRAVITY SYSTEMS AND SHALL BE
ADJUSTED BY THE ENGINEER IF NECESSARY.
10. OUTLET STRUCTURES AND OUTFALLS SHALL CONSIST OF FLARED END STRUCTURES (FES) UNLESS OTHERWISE
NOTED. RIPRAP APRONS SHALL BE THE OUTLET.
I I / GRAPHIC SCALE
69230 SF / / /\ / / ✓ /
I I 1.59 AC h' 25 0 25 50 100
I y
(IN FEET)
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1 inch = 50 ft.
Know what's below.
Call before you dig
CONTRACTOR SHALL NOTIFY "NC811" (811) OR (1-800-632-4949) AT
LEAST 3 FULL BUSINESS DAYS PRIOR TO BEGINNING CONSTRUCTION
OR EXCAVATION TO HAVE EXISTING UTILITIES LOCATED.
CONTRACTOR SHALL CONTACT ANY LOCAL UTILITIES THAT PROVIDE
THEIR OWN LOCATOR SERVICES INDEPENDENT OF "NC811 ". REPORT
ANY DISCREPANCIES TO THE ENGINEER IMMEDIATELY.
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C3 PROJECT #:
21-026
REVIEW PROJECT #:
XX-XXX
SHEET #:
C-1.4