SW1200601_2020-07-22 NCDEQ Storm revised plans_20200722

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OFFICE & STORAGE EXPANSION
NOTES
SITE NOTES:
1. PROJECT ADDRESS: 0 OLD HAYWOOD ROAD
2. TOTAL ACREAGE: 6.00 AC -
3. ZONING: TOWN OF MILLS RIVER
4. PROJECT PIN N U M BER(S) : 9632-48-78691 9632-48-9561
5. EXISTING TOPO INFO SHOWN WAS PROVIDED BY: BROOKS ENGINEERING ASSOCIATES, PA
6. EXISTING BOUNDARY INFO PROVIDED BY: BROOKS ENGINEERING ASSOCIATES, PA
7. FEMA FLOOD PANEL: 37009632001
8. RECEIVING STREAM: MCDOWELL CREEK (CLASS C, INDEX NO. 6-58)
9. SOIL TYPE(S): DELANCO LOAM, HAYESVILLE LOAM
10. DEED BOOK / PAGE: 28/571, 3487/445
11. LATITUDE / LONGITUDE: 35.425142°N, 82.576514°W
12. DISTURBED ACREAGE: 4.0 AC
13. EROSION CONTROL REVIEW: NCDEQ
14. STORMWATER MANAGEMENT REVIEW: NCDEQ
GENERAL NOTES:
1. CONTRACTOR SHALL PROTECT ADJACENT PROPERTIES, THE GENERAL PUBLIC AND ALL OF THE OWNER'S
FACILITIES AND SHALL BE RESPONSIBLE FOR THE REPAIR OF ALL DAMAGES WHICH OCCUR DURING
CONSTRUCTION.
2. LOCATION OF ALL EXISTING UTILITIES, AS SHOWN HEREON, ARE APPROXIMATE ONLY. NO GUARANTEE IS
MADE OR IMPLIED BY THE LOCATION REFLECTED IN THE PLANS. IT IS THE CONTRACTOR'S
RESPONSIBILITY TO VERIFY THE TYPE, SIZE AND LOCATION OF ALL UTILITIES AND OTHER FEATURES
WHICH MAY AFFECT CONSTRUCTION OR THE INTENDED FUNCTION OF THE DESIGN. CONTRACTOR SHALL
NOTIFY DESIGNER PRIOR TO CONSTRUCTION IF EXISTING CONDITIONS DIFFER FROM THAT INDICATED
IN THE PLANS.
3. NO STREAM OR WETLAND DISTURBANCE SHALL OCCUR WITHOUT A ARMY CORPS OF ENGINEERS PERMIT.
4. THE ESCAPE OF SEDIMENT FROM THE SITE SHALL BE PREVENTED BY THE INSTALLATION OF EROSION
CONTROL MEASURES AND PRACTICES PRIOR TO, OR CONCURRENT WITH, LAND DISTURBING ACTIVITIES.
5. ANY EXCESS CUT MATERIAL DEVELOPED IN THE CONSTRUCTION OF THIS SITE SHALL BE DISPOSED OF IN
AN APPROPRIATELY PERMITTED SPOIL SITE. CONTRACTOR TO PROVIDE PROOF OF PERMITS PRIOR TO
CONSTRUCTION.
6. ANY ALTERATION TO THE PLANS MUST BE APPROVED BY THE PROJECT ENGINEER, OR APPROPRIATE
AGENCY PRIOR TO THE COMMENCEMENT OF WORK.
7. THE CONTRACTOR SHALL OBTAIN, AND PAY FOR, PRIOR TO BEGINNING ANY WORK, ALL PERMITS AND
LICENSES NECESSARY TO ACCOMPLISH THE WORK.
8. CONTRACTOR(S) SHALL BE RESPONSIBLE FOR ADEQUATE SUPERVISION TO PREVENT DAMAGE AND
MOVEMENT FROM EQUIPMENT WORKING AROUND CONSTRUCTION STAKES. THESE CONSTRUCTION
STAKES SHALL REMAIN IN PLACE AND BE PROTECTED UNTIL OWNER APPROVES THEIR REMOVAL. ANY
STAKES THAT HAVE BEEN DISPLACED AS A RESULT OF CONSTRUCTION ACTIVITY ARE TO BE REPLACED
BY A LICENSED LAND SURVEYOR ENGAGED BY THE CONTRACTOR AT NO COST TO THE OWNER.
9. THE ENGINEER WILL NOT BE CONTINUOUSLY PRESENT IN THE FIELD, IT IS SPECIFICALLY UNDERSTOOD
THAT HE DOES NOT UNDERTAKE NOR ASSUME ANY OBLIGATION FOR SUPERVISION OF CONSTRUCTION,
SAFETY MEASURES TAKEN DURING THE COURSE OF CONSTRUCTION, RESPONSIBILITY FOR SCHEDULING
THE WORK FOR INSURING COMPLETE COMPLIANCE WITH THE CONTRACT DOCUMENTS AND/OR ALL CODE
REQUIREMENTS, RULES AND REGULATION OF ANY PUBLIC OR PRIVATE AUTHORITY HAVING
JURISDICTION OVER THE WHOLE OR ANY PART OF THE WORK. IN ADDITION, THE ENGINEER NEITHER
UNDERTAKES, ASSUMES, NOR GUARANTEES THE WORK AND/OR PERFORMANCE OF THE CONTRACTOR.
INSPECTION SCHEDULE:
1. NO CONSTRUCTION SHALL COMMENCE UNTIL ALL APPLICABLE LAND DISTURBANCE PERMITTING IS
COMPLETED AND A PRECONSTRUCTION MEETING WITH GOVERNING LAND DISTURBANCE REGULATORY
PERSONNEL IS CONDUCTED.
2. ALL SHOP DRAWINGS SHALL BE SUBMITTED AT OR PRIOR TO THE PRECONSTRUCTION MEETING.
3. ENGINEER TO BE CALLED FOR PERIODIC INSPECTIONS.
4. CALL ENGINEERING PRIOR TO COVERING UNDERGROUND STRUCTURES FOR FINAL INSPECTIONS.
5. REFER TO MANUFACTURER'S SPECIFICATION MANUAL AND STATE AND LOCAL STANDARDS FOR
ADDITIONAL REQUIREMENTS AND STANDARDS.
BEFORE YOU DIG !
CALL 811
N.C. ONE -CALL CENTER
IT'S THE LAW !
PROJECTMAP
VICINITYMAP
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CONTACTS
DEVELOPER:
GREENFINN GROUP
OWNER:
SANSTONE HOME OFFICE PROPERTIES, LLC
ENGINEER:
BROOKS ENGINEERING ASSOCIATES, PA
SURVEYOR:
BROOKS ENGINEERING ASSOCIATES, PA
NO.: TITLE:
CONTACT INFO2-.
CHRIS FINN
825C MERRIMON AVE, SUITE 171
ASHEVILLE, NC 28804
704-390-4819
[e-mail]
CONTACT INFO:
CHRIS SPRENGER
229 AIRPORT ROAD SUITE 7-104
ARDEN, NC 28704
CONTACT INFO:
BRANDON THOMAS
17 ARLINGTON STREET
ASHEVILLE, NC 28801
828-232-4700
[e-mail]
CONTACT INFO:
PAUL SEXTON
828-232-4700
[e-mail]
SHEET INDEX
C-0 COVER
C-2.0 EXISTING CONDITIONS / DEMO PLAN
C-5.0 OVERALL GRADING AND STORMWATER PLAN
C-5.1 STORMWATER PROFILES
C-5.2 STORMWATER DETAILS
C-5.3 STORMWATER DETAILS
C-5.4 EXISTING DRAINAGE AREA MAP
C-5.5 PROPOSED DRAINAGE AREA MAP
NO.:
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DEVELOPMENT DATA
PROPERTY ADDRESS: 0 OLD HAYWOOD ROAD
PIN N U M B E R: 9632-48-7869, 9632-48-9561
PROPERTY SIZE: 6.00 AC
ZONING REVIEW: TOWN OF MILLS RIVER
EROSION CONTROL REVIEW: NCDEQ
STORMWATER REVIEW: NCDEQ
ZONING CLASSIFICATION: MR -MU
PROPERTY OWNER: SANSTONE HOME OFFICE
PROPERTIES, LLC
CONTACT: CHRIS SPRENGER
ADDRESS. 229 AIRPORT ROAD SUITE 7-104
ADDRESS 2: ARDEN, NC 28704
DEVELOPER: GREENFINN GROUP
CONTACT: CHRIS FINN
ADDRESS: 825C MERRIMON AVE, SUITE 171
ADDRESS 2: ASHEVILLE, NC 28804
EMAIL: [e-mail]
PHONE: [phone]
ENGINEER: BROOKS ENGINEERING
CONTACT: BRANDON THOMAS
ADDRESS: 17 ARLINGTON ST
ADDRESS 2: ASHEVILLE, NC 28801
EMAIL: [e-mail]
PHONE: [phone]
DEMOLITION NOTES
1. CONTRACTOR TO ACQUIRE ALL NECESSARY PERMITS FOR THE
DEMOLITION OF BUILDINGS AND EXISTING SITE IMPROVEMENTS.
NO WORK SHALL COMMENCE UNTIL THE PROPER PERMITS HAVE
BEEN ACQUIRED.
2. CONTRACTOR SHALL NOTIFY APPROPRIATE UTILITY LOCATION
SERVICE FOR THIS AREA AND HAVE THE EXISTING UTILITIES
LOCATED PRIOR TO BEGINNING WORK.
3. ALL DEMOLITION MATERIALS SHALL BE REMOVED FROM THE SITE
AND DISPOSED OF IN AN APPROPRIATE MANNER.
4. CONTRACTOR TO COORDINATE ANY UTILITY DEMOLITION WITH THE
APPROPRIATE UTILITY PROVIDER AND DEMO UTILITIES PER THEIR
SPECIFICATIONS AND STANDARDS.
5. EXCESS EXCAVATION TO BE USED A LATER DATE SHALL BE
STOCKPILED ON SITE AT A LOCATION TO BE DETERMINED BY THE
OWNER, AND STABILIZED WITH PERMANENT SEEDING.
WETLAND NOTES
1. PER THE USFWS NATIONAL WETLANDS INVENTORY, THERE ARE NO
DOCUMENTED WETLANDS LOCATED WITHIN THE PROJECT LIMITS.
2. FIELD INVESTIGATION'CONDUCTED BY BRANDON M. THOMAS, P.E.
ON JULY 149 2020 CONFIRMED THAT NO WETLANDS EXIST ON SITE.
EXIS T. CONDITIONS LEGEND
EXIST. BOUNDARY
— —
EXIST. RIGHT OF WAY
EXIST. EASEMENT
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EXIST. BUILDING SETBACK
EXISTING SIDEWALK
EXISTING PAVEMENT
EXIST. EDGE OF PAVING
EXIST. ASPHALT CURB
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EXIST. WATER- LINE
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DROP INLET
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STORM DRAINAGE TABLE I
NAME
RIM ELEV(FT)
INVERT -IN ELEV(FT) (1)
INVERT -IN ELEV(FT) (2)
INVERT -OUT ELEV(FT)
Drainage Area (Acre)
Runoff Coeff.
Time of Concentration (min)_
ST1
2181.00
2181.00
N/A
N/A
0.00
0.00
0.00
ST2
2186.86
2181.29
N/A
2181.29
0.30
0.93
5.00
ST3
2186.84
2182.15
N/A
2181.65
1.04
0.36
11.60
ST4
2190.00
2184.43
2183-81
2183.81
1.12
0.34
15-80
ST5
2188.81
N/A
N/A
2185.31
0.30
0.91
5.00
ST6
2195-15
2191.17
2189-59
2189.59
0.31
0.38
12.70
ST7
2195.15
N/A
N/A
2191.65
0.07
0.87
5.00
ST8
2205.55
2200.33
N/A
2198-32
0.14
0.41
11.60
ST9
2216.94
2212.95
2209.31
2207.44
0.03
0.85
5.00
ST10
2216.93
N/A
N/A
2213.43
1 0.07
0.86
5.00
ST1 1
2223.34
2215.37
N/A
2215.37
0.16
0.83
5.00
ST1 2
2228.04
2216.58
N/A
2216.58
0.04
0.80
5.00
ST1 3
2228.2
2217.13
N/A
2217.13
0.02
0.79
5.00
ST14
2226. 110
2217.80
N/A
2217.80
0.10
0.78
5.00
ST1 5
2224.46
2220.48
2213.34
2218.34
0.03
0.84
5.00
ST1 7
2224.4
N/A
N/A
2220.96
0.07
0.80
5.00
ST16
2222.54
N/A
N/A
2219.04
0.18
0.90
5.00
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EXISTING BOUNDARY (Ti PROPOSED FUTURE PROPOSED STORAGE BULDING OUTLET PROTECTION (TYP)
STORAGE BULDING FOUND .......
(31864 SF) .......
LOCATION (3,864 SF).
W1 CAP
TOTALFUTURE ........
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0 40 80 120
SCALE: 1 40
DE VEL OPMEN T DA TA
PROPERTY ADDRESS: .0 OLD HAYWOOD ROAD
PIN NUMBER: 9632-48-7869, 9632-48-9561
PROPERTY SIZE: 6.00 AC
ZONING REVIEW: TOWN OF MILLS RIVER
EROSION CONTROL REVIEW: NCDEQ
STORMWATER REVIEW: NCDEQ
ZONING CLASSIFICATION: MR -MU
PROPERTY OWNER: SANSTONE HOME OFFICE
PROPERTIES, LLC
CONTACT: CHRIS SPRENGER
ADDRESS: 229-AIRPORT ROAD SUITE 7-10 4.
ADDRESS 2: ARDEN, NC 28704
DEVELOPER: GREENFINN GROUP
CONTACT: CHRIS FINN
ADDRESS: 825C MERRIMON AVE, SUITE 171
ADDRESS 2: ASHEVILLE, NC 28804
EMAIL: CFINN&GREEN::INNGROUP.COM
PHONE: [phone]
ENGINEER: BROOKS ENGINEERING
CONTACT: BRANDON THOMAS
ADDRESS: 17 ARLINGTON ST
ADDRESS 2: ASHEVILLE, NC 28801
EMAIL: BTHOMAS&BROOKSEA.COM
PHONE: [phone]
GRA DING A ND S TORM WA TER L EGEND
EXIST. BOUNDARY
EXIST. RIGHT OF WAY
EXIST. SANITARY SEWER
E-OLJ -- - ---- - - ------ - E-OU
EXIST. OVERHEAD UTILITIES
EXIST. STORM DRAIN
EXIST. MINOR CONTOUR
;.­j
EXIST. MAJOR CONTOUR
NEW MINOR CONTOUR
ELEV
NEW MAJOR CONTOUR
NEW PAVEMENT
4
NEW SIDEWALK
. ............
..................
NEW SEWER LINE
NEW YARD INLET
NEW DROP INLET
NEW CAT CH BASIN
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OUTLET CONTROL PROTECTION CALCULATIONS
DAM EL.= 2184.00'
� SPILLWAY EL. = 2182.25'
� 4.0'
TOP OF UPTURNED PIPE
FOR IWS AT ELEV=2179.50'
INV. OUT = 2177.75'
TRASH RACK
ATOP EL. = 2182.00'
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30" OF MEDIA MIX TO BE COMPOSED OF A HOMOGENOUS
6" PVC CAP WITH 1.9" DRILLED ORIFICE MIX OF THE FOLLOWING:
• 75-85% MEDIUM TO COARSE WASHED SAND
SOD POND BOTTOM= 2181.00' • 8-10% FINES (SILT AND CLAY)
• 5-10% ORGANIC MATTER (SUCH AS
PINE BARK FINES)
• MEDIA P-INDEX SHOULD BE LESS THAN 50
INV= 2177.75'
THE BIORETENTION MEDIA SHALL NOT BE
FILTER FABRIC LAYER MECHANICALLY COMPACTED. IT IS RECOMMENDED TO
EITHER WATER IT OR WALK ON IT AS IT IS PLACED.
TOP OF STONE = 2178.50
3" OF WASHED #57 STONE ABOVE AND ON EACH SIDE OF UNDERDRAIN
6" PERFORATED PVC
UNDERDRAIN AT 0.50% MIN. SLOPE
REINFORCED CONCRETE
ANTI -FLOTATION BASE
6'x6'x V
UNDERDRAIN NOTE:
PROVIDE A MINIMUM OF 4 ROWS OF PERFORATIONS AROUND THE DIAMETER
OF THE PIPE. PERFORATIONS SHOULD BE PLACED 6 INCHES ON CENTER
WITHIN EACH ROW FOR THE ENTIRE LENGTH OF THE DRAINAGE LATERAL.
PERFORATIONS SHOULD BE 3/8 INCH IN DIAMETER.
OUTLET STRUCTURE & BIORETENTION MEDIA DETAIL
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RECOMMENDED MINIMUM TRENCH WIDTHS
FINAL
BACKFILL
MIN. COVER TO MIN. COVER TO
RIGID PAVEMENT, H FLEXIBLE PAVEMENT, H
6"
INITIAL
SPRINGLINE BACKFILL
HAUNCH
BEDDING
4" FOR 12"-24" PIPE
6" FOR 30"-60" PIPE MIN. TRENCH WIDTH SUITABLE
NOTES: (SEE TABLE) FOUNDATION
1. ALL PIPE SYSTEMS SHALL BE INSTALLED IN ACCORDANCE WITH ASTM D2321, "STANDARD PRACTICE
FOR
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21 "
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10"
28"
12"
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15"
34"
18"
39"
24"
48"
30"
56"
36"
64"
42"
72"
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80"
54"
88"
60"
96"
UNDERGROUND INSTALLATION OF THERMOPLASTIC PIPE FOR SEWERS AND OTHER GRAVITY FLOW
APPLICATIONS", LATEST ADDITION MINIMUM RECOMMENDED COVER BASED ON
VEHICLE LOADING CONDITIONS
2. MEASURES SHOULD BE TAKEN TO PREVENT MIGRATION OF NATIVE FINES INTO BACKFILL MATERIAL,
WHEN REQUIRED.
3. FOUNDATION: WHERE THE TRENCH BOTTOM IS UNSTABLE, THE CONTRACTOR SHALL EXCAVATE TO A
DEPTH REQUIRED BY THE ENGINEER AND REPLACE WITH SUITABLE MATERIAL AS SPECIFIED BY THE
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ENGINEER, MINIMUM BEDDING THICKNESS SHALL BE 4" (100mm) FOR 4"-24" (100mm-600mm); 6" (150mm) ON RAILWAY LOADING CONDITIONS
FOR 30"-60" (750mm-900mm).
5. INITIAL BACKFILL: SUITABLE MATERIAL SHALL BE CLASS I, II OR III IN THE PIPE ZONE EXTENDING NOT
LESS THAN 6" ABOVE CROWN OF PIPE. THE CONTRACTOR SHALL PROVIDE DOCUMENTATION FOR
MATERIAL SPECIFICATION TO ENGINEER. MATERIAL SHALL BE INSTALLED AS REQUIRED IN ASTM D2321,
LATEST EDITION.
COOPER
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24
30"-36"
36"
42"-60"
48"
6. MINIMUM COVER: MINIMUM COVER H IN NON -TRAFFIC APP ICAT ON R SS O LANDSCAPE A EA L I S (G A R R S) ** COVER IS MEASURED FROM TOP OF PIPE TO BOTTOM
IS 12" FROM THE TOP OF PIPE TO GROUND SURFACE. ADDITIONAL COVER MAY BE REQUIRED TO
PREVENT FLOTATION. FOR TRAFFIC APPLICATIONS, MINIMUM COVER, H, IS 12" UP TO 48" DIAMETER PIPE OF RAILWAY TIE.
AND 24" OF COVER FOR 54"-60" DIAMETER PIPE, MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE *** E-80 COVER REQUIREMENTS, ARE ONLY APPLICABLE
PAVEMENT OR TO TOP OF RIGID PAVEMENT. TO ASTM F 2306 PIPE.
2 ADDED E-80 INFORMATION TJR 08/20/07 1 NOTE: ALL DIMENSIONS
2007 ADS, INC. REV. DESCRIPTION BY MM/DD/YY I CHK'D ARE t 112 FOOT.
ADVANCED DRAINAGE SYSTEMS, INC. CADS' HAS PREPARED THIS DETAIL BASED ON INFORMATION PROVIDED TO AN. "THIS DW DEr/RET SYSTEM DRAWNO: CKS
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