NCC231308_Site Plan or Location Map_20230509

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CS COVER SHEET ., _
EC EXISTING CONDITIONSEVERBROOK SUBDIVISION / LgA
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Cl ROADWAY PLAN & PROFILE ;negi
C2 SEDIMENTATION & EROSION CONTROL PLAN O O 1. us sa f=e &�
C3 STORMWATER CALCULATIONS 3 3 4 g€ /pi
D1 SEDIMENTATION & EROSION CONTROL PLAN DETAILS 2. MT.GILEAD CHURCH RD R E = 8
D2 SEDIMENTATION & EROSION CONTROL PLAN DETAILS 3. PEA RIDGE 3. COUNTRY LN
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D3 SEDIMENTATION & EROSION CONTROL PLAN DETAILS 5. PICKETT LN 1"dwoss
D D4 SEDIMENTATION & EROSION CONTROL PLAN DETAILS 35- 190
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cc CHATHAM COUNTY STORMWATER REQUIREMENTS: o z
FROM SECTION 400:
SITE INFORMATION• zw
1—o E
D. DEVELOPMENT OR REDEVELOMENT OF A MINOR SUBDIVISION OR AN INDIVIDUAL RESIDENTIAL ZONING: R-1 o a
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100 0 100 200 300 N `L'
LOT CUMULATIVELY EXCEEDING 20,000 SQUARE FEET OR LAND DISTURBANCE SHALL N n
DEMONSTRATE COMPLIANCE WITH THIS ORDINANCE:
PARCEL NUMBERS: 65701, 2.568 AC. 1 N rn s
3 SCALE: 1" =100' 3 94685, 2.311 AC. N In z v
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(i) EITHER MEETING THE WATER QUALITY REQUIREMENTS OF SECTION 400(2) OR CONTOUR INTERVAL = 2' 94686, 2.006 AC. 1 j 0
A (II) ENSURING THAT THE STORMWATER MANAGEMENT GUIDELINES OF RESIDENTIAL USE IN NAVD '88 DATUM 94687, 5.696 AC. 0w A
APPENDIX C WILL BE IMPLEMENTED AT EACH INDIVIDUAL LOT. TOTAL DEEDED ACREAGE: 12.59 AC. (LOTS A — D) N M cc F
NOTE: OWNER(S): ANTHONY PRUSIK AND MARGARET PRUSIK
FOR (ii) ABOVE, A STANDARD NOTE PROVIDED BY THE COUNTY MUST BE PLACED ON THE ADDRESS: 190 BIG BEAR DRIVE SCALE:
MINOR SUBDIVISION PLAT. THIS DRIVE PROJECT WILL NOT REQUIRE THE INSTALLATION OF PITTSBORO, NC 27312 DATE. 05_05_2022
STORMWATER CONTROL MEASURES, HOWEVER, FURTHER DEVELOPMENT OF PHONE NO: 919-757-5005
E. DEVELOPMENT OR REDEVELOPMENT OF A RESIDENTIAL MINOR SUBDIVISION PLAT THAT THE PROPERTY WILL LIKELY REQUIRE STORMWATER CONTROL MEASURES, EMAIL: tonyand5®yahoo.com SHEET NO.:
INCLUDES AN ACCESS EASEMENT OR ROAD AND CUMULATIVELY DISTURBS MORE THAN 20,000 EACH DESIGNED FOR THE SITE DESIGN AND CONSTRAINTS OF EACH LOT.
SQUARE FEET OF LAND SHALL DEMONSTRATE COMPLIANCE WITH THE ORDINANCE BY ENSURING
THAT POST DEVELOPMENT (FROM GROSS PLANNED DEVELOPMENT AREAS) PEAK FLOW C S
DISCHARGE RATES DO NOT EXCEED THE PRE—DEVELOPMENT PEAK DISCHARGE RATES FOR THE
2—YEAR, 24—HOUR STORM EVENT BY MORE THAN 10%, ROUNDED UP TO THE NEAREST
WHOLE NUMBER. IF 10% IS EXCEEDED, ARTICLE 4, SECTION 400, (1), (2), (3) AND (4)
ABOVE APPLIES. IF IT IS LESS THAN 10%, SECTION D ABOVE APPLIES.
SEQUENCE NO. OF
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1. LOT INFORMATION FROM PLAT BOOK 2021 PAGE 120 RD# o Z a o - H
_INTO
2. TOPOGRAPHIC INFORMATION IN THE BIG BEAR DRIVE < < ROAD SIDE DITCH Q La O ccZ rc
EASEMENT IS FROM FIELD SURVEY BY RWK, PA PROPERTY LINE 0 CO Lo z o cl
3. ROAD GRADING WILL NOT SIGNIFICANTLY CHANGE — PROPERTY LINE- NOT SURVEYED v=CL 0 0 w
D Z 1-U
EXISTING GRADES. ROAD PROFILE VARIES FROM 1% TO EXISTING CONTOUR(FROM FIELD) J I-<Z 5 E
7%. NATURAL TRANSITIONS ARE WITHIN ACCEPTABLE — EXISTING CONTOUR INDEX(FROM RELD) U O U U Q_
SITE INFORMATION: _ -——— V
- EXISTING CONTOUR(FROM GIS) U
ZONING: R-1 4. T R WILL BE NO BORROW, SPOIL OR STOCKPILE — — EXISTING CONTOUR INDEX(FROM GIS) CV N M
I PARCEL NUMBERS: 65701 AREAS ON-SITE, HOWEVER, OFF-ROAD AREAS WITHIN n I N z p
PROPOSED CONTOUR
ATEE LIMIT OF DISTURBANCE MAY BE USED AS A PROPOSED CONTOUR INDEX CV I 0
94685 LAYDOWN AREA FOR PIPE OR EQUIPMENT, HOWEVER, —0 00— OVERHEAD WIRE I I N 5
94686 —SF—SF— SILT FENCE,PER DETAIL 2018-013
A 94687 THESE AREAS MUST BE RESTORED TO THEIR ORIGINAL LIMIT OF DISTURBANCE - N M 0 F A
Co IIITISN A R • -0'D A ,0-K I CO P
. A L R GABS. D C HAL :E LI Es IT U-L D
WOOD OR EXCELSIOR MATTING. SCALE:
6. ALL ROADSIDE DITCH OUTLETS SHALL BE EQUIPPED WITH DATE: 05-05-2022
SCOUR PADS MADE OF CLASS A RIP-RAP, 6 FEET
LONG, 6 FEET WIDE AND 12 INCHES THICK. SHEET NO.:
7. EXISTING CONTOURS WERE ALSO CHECKED WITH GIS
CONTOURS TO DETERMINE DRAINAGE AREAS AND
PATTERNS. 40 0 40 SG 12o
EC
SCALE: 1" =40'
CONTOUR INTERVAL = 2'
NAVD '88 DATUM
SEQUENCE NO. OF
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OVERHEADWIR�A SFF SILT FENCE, ERDETAIL 8 O141 URBANEDESIGNE SMMN �� — -.� t ''� aM$-r�za"RCP® 1.0% DRAWN:D SMM
`� � / �i/�/ 1 INV.OUT 339.2
G "' APPROVED: CRP
OVERHEAD WIRE a •\— �/• R a' \ \ / \ \ O 20 LF.24'RCP® 1.
CLEARANCE /,
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WIRE ELEV:459' —'���'��,' . kN ti ` 4�/ O INV.IN 448.6
EMPIRE CO ORS,INC. \ \\NV\ INV.GUT44$.4
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��,(\O � • / � — — — — — — — 440 — — — - — _ �_ 1� kums1 �� —1 1 1� 1 NOTES: / /IIIIIIIIIIIIMIIIIIIIMMI OJ Q 4—
�J"�O 1. LOT INFORMATION FROM PLAT BOOK 2021 PAGE 120 Z
6" ABC COMPACTED TO 2. TOPOGRAPHIC INFORMATION IN THE BIG BEAR DRIVE 0 12 o
90% MODIFIED PROCTOR EASEMENT IS FROM FIELD SURVEY BY RWK, PA Z a
COMPACTED SUBGRADE THAT WILL DENSITY 3. ROAD GRADING WILL NOT SIGNIFICANTLY CHANGE EXISTING N a Q
PASS A PROOF ROLL WITH A FULLY GRADES. ROAD PROFILE VARIES FROM 1% TO 7%. — _
'� ..,.,, 7 \ •LOADED DOUBLE AXLE EQUIVALENT NATURAL TRANSITIONS ARE WITHIN ACCEPTABLE LIMITS FOR ' W w
, '0 GRAVEL CONSTRUCTION ENTRANCE,PER DETAIL 2018-003 WEIGHTED EQUIPMENT (25-50 TONS) RRVEL 5'
r 3 t N 4. TH -E W LL B NO B•R"OW, SOIL •R S 0 K-IL A, -S et ' W z
--v - - - - ON-SITE, HOWEVER, OFF-ROAD AREAS WITHIN THE LIMIT OF G J F
� MINIMUM GRAVEL ROAD STANDARD / \ DISTURBANCE MAY BE USED AS A LAYDOWN AREA FOR PIP m z
!3 ROCK FILTER BERM(PIPE INLETS),PER DETAIL 2018-005 . (NTS) OR EQUIPMENT, HOWEVER, THESE AREAS MUST BE
1 RESTORED TO THEIR ORIGINAL CONDITION AFTER ALL D Q < 0 0
.• ..y:.RIP-RAP OUTLET PROTECTION,(OSP1 &2) 40' MINIMUM NOTE: MUST FOLLOW ENTIRE LENGTH OF ROADBED AND ROADWAY WORK IS C•M'L N 03 J a
i••''•' PER DETAIL 2018-007 - . THE DESIGN AND CONSTRUCTION OF PRIVATE ROADS SHALL - A "•'1 Is •I ' - L. : D - ' m Q
B4O.:... a = B
....—
Him BE CERTIFIED TO BE IN COMPLIANCE WITH THESE WOOD OR EXCELSIOR MATTING. k V' } 1.
MATTING,PER DETAIL 2018-010A REGULATIONS BY A LICENSED ENGINEER PER SECTION 7.2.D 6. ALL ROADSIDE DITCH OUTLETS SHALL BE EQUIPPED WITH I
SCOUR PADS MADE OF CLASS A RIP-RAP, 6 FEET LONG, 6 O CO Q = _
N SILT FENCE OUTLET,PER DETAIL 2018-014 PULLOUT CENTERED ON ROAD FEET WIDE AND 12 INCHES THICK. G g 3 0
7. EXISTING CONTOURS WERE ALSO CHECKED WITH GIS
SCALE 1" = 20' CONTOURS TO DETERMINE DRAINAGE AREAS AND PATTERNS. W m
m 1"1 > 0
re Q a
40 0 40 80 120 W CC O
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BIG BEAR DRIVE SCALE: 1" =40' LLI 0
PROFILE
HORIZINGTAL SCALE: 1"=40' CONTOUR INTERVAL = 2'
VERTICAL SCALE: 1"=10' NAVD 88 DATUM
480 480 w
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SCALE:
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'�� SHEET NO.:
440 — 440
Cl
430 430
0+80 1+20 1+60 2+00 2+40 2+80 3+20 3+60 4+00 4+40 4+80 5+20 5+60 6+00 6+40 6+80 7+20 7+60 8+00 8+40 8+80 9+20 9+60 10+00 10+40 10+80 11+20 11+60
SEQUENCE NO. OF
8 7 1
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Discharge, 24-hour, 2 year Storm Event
4 CHATHAM COUNTY STORMWATER REQUIREMENTS: Everbrook Subdivision
PROJECT
FROM SECTION 400: Runoff Summary Z a
D. DEVELOPMENT OR REDEVELOMENT OF A MINOR SUBDIVISION OR AN INDIVIDUAL RESIDENTIAL 35-190 Big Bear Drive c
LOT CUMULATIVELY EXCEEDING 20,000 SQUARE FEET OR LAND DISTURBANCE SHALL - - 0
DEMONSTRATE COMPLIANCE WITH THIS ORDINANCE: Chatham County �w 4
(i) EITHER MEETING THE WATER QUALITY REQUIREMENTS OF SECTION 400(2) OR Pittsboro, North Carolina v>I W x
(ii) ENSURING THAT THE ATER MANAGEMENT GUIDELINES OF RESIDENTIAL USE IN Pre-Development Post-Development >_ c
APPENDIX C WILL BE IMPLEMENTED AT EACH INDIVIDUAL LOT. P p rt Z
Area ID 1 2 1 2 Cct Wix O
FOR (ii) ABOVE, A STANDARD NOTE PROVIDED BY THE COUNTY MUST BE PLACED ON THE 0
MINOR SUBDIVISION PLAT. Watershed Area 13.736 9.523 13.736 9.523 co — z
Da QH8
E.
INCLUDES AN DEVELOPMENT
ACCESS EASEMENT OR REDEVELOPMENTOR ROAD OF A EAND SIDENCTUMULATIVVELYIAL R SUBDIVISION DISTURBS MORE THAN 20,000 PLAT THAT Hydrologic Class B B B B Cl)m 3 a a
B SQUARE FEET OF LAND SHALL DEMONSTRATE COMPLIANCE WITH THE ORDINANCE BY ENSURING w J F B
THAT POST DEVELOPMENT (FROM GROSS PLANNED DEVELOPMENT AREAS) PEAK FLOW Curve Numbers, CN CN 0 Can a
DISCHARGE RATES DO NOT EXCEED THE PRE-DEVELOPMENT PEAK DISCHARGE RATES FOR THE
2-YEAR, 24-HOUR STORM EVENT BY MORE THAN 10%, ROUNDED UP TO THE NEAREST p O J v
WHOLE NUMBER. IF 10% IS EXCEEDED, ARTICLE 4, SECTION 400, (1), (2), (3) AND (4) WOOdS, CIaSS B$OIIS 58 8.297 7.45 8.672 8.482 G Cn F a &
ABOVE APPLIES. IF IT IS LESS THAN 10%, SECTION D ABOVE APPLIES. Woods, Class D Soils 79 0 0 0.301 0.301 I: 7 U) V H
Open Area, Class B Soils 65 4.039 4.649 0 0.123 COM
Gravel Roads, Drives 85 0.885 1.122 0.38 0.447
o
Roads 98 0.22 0.22 0 0
Houses 98 0.295 0.295 0.17 0.17 W F
PROPERTY LINE
PROPERTY LINE - NOT SURVEYED
Compound CN 63 64 60 61 EXISTING CONTOUR (FROM GIS)
EXISTING CONTOUR INDEX (FROM GIS)
Hydraulic Length, ft 1,496 1,325 1,496 818 N Elevation Difference, ft 42 79 42 79 GENERAL FLOW DIRECTION
Slope, ft/ft 0.028 0.059 0.028 0.059
Tc (hours) 0.78 0.78 0.49 0.47 • POINT OF INTEREST
— , — DRAINAGE PATH o
rn p
A DRAINAGE PATH, POST-CONSTRUCTION w a A
cc F
Initial Abstraction, in. 1.16 1.31 1.12 1.29 / DRAINAGE AREA 1, 13.736 AC. SCALE:
Discharge, 2yr-24h Storm, cfs 5.16 3.37 5.43 3.45 DATE: 03-09-2023
Increase, % 5.2% 2.4% DRAINAGE AREA 2, 9.523 AC. SHEET NO.:
Total Discharge from Site Pre 8.54 cfs
Post 8.89 cfs ,00 o 100 200 300 C 3
SCALE: 1" =100'
Change 4.1% CONTOUR INTERVAL
DATUM 2 SEQUENCE NO. OF
8 7 6 5 ? 4 3 2 1