20171091 Ver 1_Stormwater Info_20170809

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\ \ \ CONTRACTOR SHALL CONVERT
\ \ - TD #1 TO ITS PERMANENT /j
v v v v STATE AND MAT WITH NORTH /// /
\ \
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AMERICAN GREEN S75 OR - //
28 PROPOSED / / v v v APPROVED EQUIVALENT - / / / // z/� /
\ \ \ \ � _ - - 2 HDPE @ 1.82% \ \ / // // �✓ /
PROPOSED
PERMANENT DITCH
vv ---- - PD #1 @ 2%
- - - - - - - - MINIMUM SLOPE _28 Ln �/ / / \\ // / °z°// \
(SEE DETAIL) - _00 / / / / / /2//
288 / / / / / / �-
5
STORMWATER -NOTE-
NO STORMWATER PERMIT IS REQUIRED PER NCDEQ
STORMWATER PERMITTING INTRACIIVE MAP WEBSITE.
TTHROAATEPROPOSDNLETEA2 - 1
TOP. 2878.00
r' _ INV.: 2875.00
�- \ -
//' (STRUCTURE SHALL NOT BE / ���� j /,,'%�// _ - - EXISTING SEWER
/ INSTALLED UNTIL SEDIMENT / / , / / / \ _ \ (TYP.)
j ///' TRAP IS REMOVED) A =� / / / \
v v a°o V \ v /� / / �� PROPOSED EXISTING BUILDING
_
45LF - 15" FFE: 2875.20 ® A \ V A
\ / HDPE @ 8.89%
v � L V i / EXISTING /i // / /// / - _ - S`� _ S
EXISTING PROPOSED A4
EXISTING
GUARD
HOUSE / \
18" CMP 28 \ \ \
0
3
SITE INFORMATION:
ADDRESS: 1 PARI DRIVE
PIN#: 8545-30-6278
DEED BOOK/PG: 442/749
PLAT BOOK/PG: NA
TOTAL ACREAGE (COMBINED) ±204 ACRES
±8,886,240 SF
TRANSYLVANIA COUNTY ZONING: NA
LEGEND
STORM DRAINAGE PIPE
EXISTING CONTOURS
PROPOSED CONTOURS
PROPOSED RIP -RAP APRON
PROPOSED WA TER BAR
PROPOSED STORM INLET
PERMANENT DITCH
• 0
Know what's below.
Call before you dig.
GUARD -_-_ _ _ _ �� - L= - - // / j / �� (YARD INLET) _ / / /j / / / i, - - - - \ S\ 71 \ \�S\ \ \
SHACK _ - - _ _ _- - _ -- - - - PROPOSED OPEN ./ / / / // // ✓� TOP: 2873.50 - a / / / /r - \ \\� \ \ \ \
- - -_ THROAT INLET A3 //// / j/ / j/ ------ _\ \\\�S
i / / INV.: 2871.50 /
- - - - - - - TOP: 2880.00 / �i / / / W w \
- - - - - _- - - - -_- / / / i, 2874 \ \ �\W\`
----- ,==T- INV.: 2876.00 j
/ PROPOSED 7LF
(STRUCTURE SHALL NOT
___--- BE INSTALLED UNTIL / i / / - 15" HDPE @
SEDIMENT TRAP IS��� f - �3 7.14%
W W- REMOVED) i 28
/ / PROPOSED CURB
CONCRETE STEPS - /
INLET Al
N 2872 // TOP: 2875.20 /
EXISTING GRATE / / / INV.: 2871.00 // / / / i
INLET AO f / ----
TOP: UNADJUSTED
INV.: 2838.00
PROPOSED EXISTING
\
\ / / 43LF - 15" / / / /� / WET POND \ \
/
// HDPE @ 6.98% \ �/ / / / i - STORMWATER
N \ I /
EXISTING WATER PROPOSED / 0 ` / / / EXISTING CONTROL /
MEASURE
_-
(TYP.) CURB INLET B4 / 24" CMP �, /
TOP: 2869.00
INV.: 2866.00 - I / / / / 2868 // , // / / �/
EXISTING
r
24" CMP i APPROXIMATE
EXISTING BUILDING - _ / % / / /' ILOCATION OF
EXISTING RISER
PROPOSED / / - !4 /// I STRUCTURE
32'F - 15" _ - - - - - - \ 2 6� // PROPOSED OPEN
HDPE @ 3.13% - - 8\ / THROAT INLET B5 / / /� a -- \ V A
�-
_
TOP: 2863.50 PROPOSED
°
- ° \ /
INV.: 2861.00 73LF 15"
V EXISTING
/ HDPE @ 0.50%
/ GO 1 � 18" RCP
\ -
\ \a '
-28d5 ° ° EXISTING BUILDING
J PROPOSED ), / / / / / ° a FFE: 2870.35
PROPOSED w -- A 113LF - 15"
= CURB INLET B3 \ HDPE @ 3.81% c - / /
TOP: 2868.0041-
PROPOSED PIPE i
\ 865 OUTLET EO
INV.: 2865.00 j v -; 2 PROPOSED INV.: 2859.64
tz / % / /
-
' ---- / 20LF - 15
- � - HDPE @ 4.00% \ /
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JOE HOUSE RD.
ONVRGN ���
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/ 28
N
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SITE
US6 4
HWY
VICINITY MAP
(NOT TO SCALE)
- W �� n `
- - -
- --- - W ■ �/ \ 2 28 PROPOSED OUTLET
\ \ / PROPOSED I ° s2 6� STRUCTUREE1
E1 2861.20 / / i / / / /
2865 - --- - ---- -- - - .--- -
57LF 15 9 / / / W
/ ii
- ---__ /
- \ a EXISTING BUILDING
INV.: 2860.00 / ,� / _ �- \
> / , HDPE @ 0.88% STRUCTURE SHALL NOT / N
EXISTING � � 2g ( PROPOSED BUILDING -
- - -�+- - 48" CMP 286 6� BE INSTALLED UNTIL FINAL FFE: 2870.35 ///iii////ii
/ %ago% \ \ �- i,
EXISTING STORM a _ /
-_ - -_ -_ 2� CONVERSION TO DETENTION
DRAINAGE (TYP.) -: ----�_ 86A/ POND BEGINS
2855
)
N ° ° °
a
EXISTING FENCE - - - t \ \ _ / PROPOSED I \ ° < ° \� ° °�� °� %/ \ - -cw-
(TYP.) _ �/� ° �%\ \ EXISTING 30LF 15" a j !/ / =s
285\/ \ 12" HDPE , EXISTING / % HDPE @ 3.67%2868
d
18 l - i
CMP\w6,
/// // // / / \/ \ 2 3 N �a ♦ cP / J
PROPOSED OPEN 86 - 1 ♦ ♦ �\ 2�s, \ /// /�i ii / / - - - - - a - -=�� / - - - = EXISTING A -- /
THROAT INLET B2 �, ♦ \ / / / "` - -_- _ -- - - ' - - - - - _ /
TOP: 2863.00 2�� / r - - - - -= - - - - - - 18" RCP /
INV.: 2860.70 \ 2860 -
///// � j !_ - 1.1 1 / ♦♦� /
� l / 2863
// / - - - - / d/ / / / \ \� / PROPOSED OPEN
/ // NA \\\I THROAT INLET 131
TOP: 2863.50
INV.: 2860.20
PROPOSED SEGMENTAL BLOCK RETAINING WALL.
PEDESTRIAN SAFE HANDRAIL SHALL BE ADDED
TO TOP OF WALL WHEREVER HEIGHT OF WALL
EXCEEDS 30" (COORDINATE TYPE & STYLE
WITH ARCHITECT) (DESIGN BY OTHERS)(TYP.)
J / I / / ?8e� PROPOSED � ��-_ �_ - _--___- �_--
- -----------
/ / / / /// /% / j PROPOSED / - , %/i \ \ \ 96LF - 15" _ -zeas
-� - / / /// // /// / / / / / / 15LF - 18" / - - �-PD� \ / HDPE @ 3.96% �/� / / _ -
�\ \ - - - HDPE @ 0.67% I - EXISTING GRAVEL
°����'�// ° ° ROAD (TYP.)
�k PROPOSED
CURB INLET D2
- - - - / / / TOP: 2868.00
PROPOSED PIPE / \ \ // / - - - - _ / / /
OUTLET BO / \ // / / - - - - - - PROPOSED / / /// INV.: 2865.00
INV.: 2860.10 - / / / / / - - - - - ` - - PERMANENT DITCH // 7
PROPOSED WET/DRY POND
// --_--
- - - - - / �/ / %/ // / / / / // \ MINIMUM SLOPE
- - - - - - - / /� // / / FOREBAY STORMWATER CONTROL (SEE DETAIL) PROPOSED OPEN
- - - - - / MEASURE SEE DETAIL CONTRACTOR
THROAT INLET D1
EXISTING PAVED ( )( / \ /
ROAD (TYP.) \ SHALL CONVERT BASIN TO FINAL / PROPOSED
CONDITION SEDIMENT TRAP 49LF - 12" TOP: 2864.20
HASBEENREMOVED)HDPE @ 0.61% CONTRACTOR SHALL CONVERT INV.: 2861.20
TD #1 TO ITS PERMANENT
STATE AND MAT WITH NORTH
PROPOSED OPEN AMERICAN GREEN S75 OR PROPOSED PIPE
THROAT INLET C1 APPROVED EQUIVALENT OUTLET DO
.
TOP: 286200
INV.: 2860.10
30' STREAM/ INV.: 2860.40
PROPOSED PIPE
BUFFER
/ OUTLET CO
INV.: 2860.10
12 11 10 9
7
0
5
0
3
NORTH CAROLINA FIRM NUMBER C-2849
MICHAEL LOVOY, P.E.
34 BIG BEAR TRAIL
ASHEVILLE, NC 28805
(828)
STORMWATER PLAN
GRAPHIC SCALE
30 0 15 30 60 120
( IN FEET )
1 inch = 30 ft.
2
\I
119 Brookstown Ave. Suite
100 Winston-Salem NC 27101
p. 336-724-1503
www.cjmw.com
PERMIT SET
FOR CONSTRUCTION
1►11111111��0
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�? CERT. NOG�o = ALf
U 50356 = 38
ASTON -SALEM'
Version Issue Name I pate
1 RESPONSE TO 06.08-17 NCDEQ COMMENTS 06-13.2017
sheet
z
Z
Copyright 2016
CJMW Architecture, P.A.
STORMWATER PLAN
C4.1
date: 5126/2017
commission: 17-0050
drawn bv: UAG
PROJECT TEAM INFORMATION
OWNER/DEVELOPER:
PISGAH ASTRONOMICAL RESEARCH INSTITUTE
1 PARI DRIVE
ROSMAN, NC 28772
CONTACT: DONALD CLINE
[phone]
CIVIL
ENGINEER: ADVANTAGE CIVIL ENGINEERING
34 BIG BEAR TRAIL
ASHEVILLE, NC 28805
CONTACT: MIKE LOVOY, P.E.
[phone]
GENERAL CONTRACTOR: FRANK L. BLUM CONSTRUCTION CO.
PO BOX 4153
WINSTON SALEM, NC 27115
CONTACT: CHRIS WHITE
[phone]
SURVEYOR: KEE MAPPING AND SURVEYING
PO BOX 2566
ASHEVILLE, NC 28802
CONTACT: BRAD KEE
[phone]
NOTES
1 .
ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE
NCDENR AND BUNCOMBE COUNTY STANDARDS AND
SPECIFICATIONS.
2.
ALL EROSION CONTROL MEASURES SHALL BE IN
ACCORDANCE WITH NCDENR AND BUNCOMBE COUNTY
STANDARDS AND SPECIFICATIONS.
3.
SINGLE PHASE CONSTRUCTION.
4.
ALL WORK SHALL BE PERFORMED BY A NORTH CAROLINA
LICENSED UTILITY CONTRACTOR.
5.
CONTRACTOR TO COORDINATE EXACT LOCATION OF
PROPOSED AND EXISTING UTILITIES.
6.
EROSION CONTROL IS FIELD PERFORMANCE BASED AND
ADDITIONAL SILT FENCES, TEMPORARY SEDIMENT BASINS,
AND ALL OTHER MEASURES MAY NEED TO BE ADDED IN
ADDITION TO THE APPROVED PLAN AS NECESSARY.
MEASURES SHOWN CAN AND SHOULD BE ADJUSTED TO
ASSURE MAXIMUM PROTECTION ON SITE.
7.
CONTRACTOR IS RESPONSIBLE FOR INSTALLING,
MAINTAINING, AND REMOVING ALL NECESSARY EROSION
AND SEDIMENTATION MEASURES.
8.
CONTRACTOR TO FIELD VERIFY ALL PIPES AND DEPTHS
PRIOR TO ORDERING MATERIALS AND CONSTRUCTION.
9.
ADD MEASURES AS NEEDED IN ENVIRONMENTALLY
SENSITIVE AREAS.
10.
PROJECT LIES OUTSIDE 1 00 -YEAR FLOOD PLAIN.
1 1 .
CONTRACTOR RESPONSIBLE FOR KEEPING ACCURATE LOG
OF SITE CONDITIONS IN ACCORDANCE WITH NPDES PERMIT.
12,
SOIL TYPE "A" (UDORTHENTS)
13.
ALL DISTURBED AREAS TO BE SEEDED WITHIN 14 WORKING
DAYS OF COMPLETION PER NCDENR AND BUNCOMBE
COUNTY STANDARDS AND SPECS
14.
ALL RETAINING WALL ELEVATIONS SHOWN ARE FROM TOP
OF WALL TO FINISH GRADE ELEVATION. CONTRACTOR TO
ACCOUNT FOR FOOTER/COVER OVER FOOTER.
1 S.
CONTRACTOR IS RESPONSIBLE FOR OBTAINING GRADING
AND EROSION CONTROL PERMIT FOR WASTE OR BORROW
SITES.
16.
ALL STORM OUTFALLS SHALL HAVE ONLY CLASS II LARGE
RIP -RAP FOR ALL APRONS UNLESS OTHERWISE SPECIFIED.
17.
ALL AREAS TO BE GRADED TO DRAIN TO SEDIMENT BASIN
OR LOW ELEVATION AREAS.
18.
BIO -RETENTION CELLS AND AREAS AROUND CONCRETE
FLUMES TO INCLUDE BLUEGRASS SOD.
19.
STORM DRAINAGE BOXES SHALL BE A STANDARD 3'X 3'
(I.D.) PRECAST STRUCTURE UNLESS OTHERWISE NOTED.
- W �� n `
- - -
- --- - W ■ �/ \ 2 28 PROPOSED OUTLET
\ \ / PROPOSED I ° s2 6� STRUCTUREE1
E1 2861.20 / / i / / / /
2865 - --- - ---- -- - - .--- -
57LF 15 9 / / / W
/ ii
- ---__ /
- \ a EXISTING BUILDING
INV.: 2860.00 / ,� / _ �- \
> / , HDPE @ 0.88% STRUCTURE SHALL NOT / N
EXISTING � � 2g ( PROPOSED BUILDING -
- - -�+- - 48" CMP 286 6� BE INSTALLED UNTIL FINAL FFE: 2870.35 ///iii////ii
/ %ago% \ \ �- i,
EXISTING STORM a _ /
-_ - -_ -_ 2� CONVERSION TO DETENTION
DRAINAGE (TYP.) -: ----�_ 86A/ POND BEGINS
2855
)
N ° ° °
a
EXISTING FENCE - - - t \ \ _ / PROPOSED I \ ° < ° \� ° °�� °� %/ \ - -cw-
(TYP.) _ �/� ° �%\ \ EXISTING 30LF 15" a j !/ / =s
285\/ \ 12" HDPE , EXISTING / % HDPE @ 3.67%2868
d
18 l - i
CMP\w6,
/// // // / / \/ \ 2 3 N �a ♦ cP / J
PROPOSED OPEN 86 - 1 ♦ ♦ �\ 2�s, \ /// /�i ii / / - - - - - a - -=�� / - - - = EXISTING A -- /
THROAT INLET B2 �, ♦ \ / / / "` - -_- _ -- - - ' - - - - - _ /
TOP: 2863.00 2�� / r - - - - -= - - - - - - 18" RCP /
INV.: 2860.70 \ 2860 -
///// � j !_ - 1.1 1 / ♦♦� /
� l / 2863
// / - - - - / d/ / / / \ \� / PROPOSED OPEN
/ // NA \\\I THROAT INLET 131
TOP: 2863.50
INV.: 2860.20
PROPOSED SEGMENTAL BLOCK RETAINING WALL.
PEDESTRIAN SAFE HANDRAIL SHALL BE ADDED
TO TOP OF WALL WHEREVER HEIGHT OF WALL
EXCEEDS 30" (COORDINATE TYPE & STYLE
WITH ARCHITECT) (DESIGN BY OTHERS)(TYP.)
J / I / / ?8e� PROPOSED � ��-_ �_ - _--___- �_--
- -----------
/ / / / /// /% / j PROPOSED / - , %/i \ \ \ 96LF - 15" _ -zeas
-� - / / /// // /// / / / / / / 15LF - 18" / - - �-PD� \ / HDPE @ 3.96% �/� / / _ -
�\ \ - - - HDPE @ 0.67% I - EXISTING GRAVEL
°����'�// ° ° ROAD (TYP.)
�k PROPOSED
CURB INLET D2
- - - - / / / TOP: 2868.00
PROPOSED PIPE / \ \ // / - - - - _ / / /
OUTLET BO / \ // / / - - - - - - PROPOSED / / /// INV.: 2865.00
INV.: 2860.10 - / / / / / - - - - - ` - - PERMANENT DITCH // 7
PROPOSED WET/DRY POND
// --_--
- - - - - / �/ / %/ // / / / / // \ MINIMUM SLOPE
- - - - - - - / /� // / / FOREBAY STORMWATER CONTROL (SEE DETAIL) PROPOSED OPEN
- - - - - / MEASURE SEE DETAIL CONTRACTOR
THROAT INLET D1
EXISTING PAVED ( )( / \ /
ROAD (TYP.) \ SHALL CONVERT BASIN TO FINAL / PROPOSED
CONDITION SEDIMENT TRAP 49LF - 12" TOP: 2864.20
HASBEENREMOVED)HDPE @ 0.61% CONTRACTOR SHALL CONVERT INV.: 2861.20
TD #1 TO ITS PERMANENT
STATE AND MAT WITH NORTH
PROPOSED OPEN AMERICAN GREEN S75 OR PROPOSED PIPE
THROAT INLET C1 APPROVED EQUIVALENT OUTLET DO
.
TOP: 286200
INV.: 2860.10
30' STREAM/ INV.: 2860.40
PROPOSED PIPE
BUFFER
/ OUTLET CO
INV.: 2860.10
12 11 10 9
7
0
5
0
3
NORTH CAROLINA FIRM NUMBER C-2849
MICHAEL LOVOY, P.E.
34 BIG BEAR TRAIL
ASHEVILLE, NC 28805
(828)
STORMWATER PLAN
GRAPHIC SCALE
30 0 15 30 60 120
( IN FEET )
1 inch = 30 ft.
2
\I
119 Brookstown Ave. Suite
100 Winston-Salem NC 27101
p. 336-724-1503
www.cjmw.com
PERMIT SET
FOR CONSTRUCTION
1►11111111��0
` O p,RCHl1'F�. �Vip O�F�iSSI�p�LH9�jjii/�
�? CERT. NOG�o = ALf
U 50356 = 38
ASTON -SALEM'
Version Issue Name I pate
1 RESPONSE TO 06.08-17 NCDEQ COMMENTS 06-13.2017
sheet
z
Z
Copyright 2016
CJMW Architecture, P.A.
STORMWATER PLAN
C4.1
date: 5126/2017
commission: 17-0050
drawn bv: UAG