SW1210802_Plansheet - SCM Detail_20210818

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RECOMMENDED MINIMUM TRENCH WIDTHS NOTES:
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Q RIGID PAVEMENT, HFLEXIBLE PAVEMENT, H
yIN
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N 6"
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U
Z INITIAL
SPRINGLINE - BACKFILL
J HAUNCH
BEDDING
U_ 4" FOR 12"-24" PIPE T
6" FOR 30"-60" PIPE
wSUITABLE
o MIN. TRENCH WIDTH FOU DATION
(SEE TABLE)
NOTES:
1. ALL PIPE SYSTEMS SHALL BE INSTALLED IN ACCORDANCE WITH ASTM D2321,
"STANDARD PRACTICE FOR UNDERGROUND INSTALLATION OF THERMOPLASTIC
PIPE FOR SEWERS AND OTHER GRAVITY FLOW APPLICATIONS", LATEST ADDITION
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 ENGINEER. AS AN ALTERNATIVE AND
AT THE DISCRETION OF THE DESIGN ENGINEER, THE TRENCH BOTTOM MAY BE
STABILIZED USING A GEOTEXTILE MATERIAL.
4. BEDDING: SUITABLE MATERIAL SHALL BE CLASS I, II OR III. THE CONTRACTOR
SHALL PROVIDE DOCUMENTATION FOR MATERIAL SPECIFICATION TO ENGINEER.
UNLESS OTHERWISE NOTED BY THE ENGINEER, MINIMUM BEDDING THICKNESS
SHALL BE 4" (100mm) FOR 4"-24" (100mm-600mm); 6" (150mm) 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.
6. MINIMUM COVER: MINIMUM COVER, H, IN NON -TRAFFIC APPLICATIONS (GRASS
OR LANDSCAPE AREAS) IS 12" FROM THE TOP OF PIPE TO GROUND SURFACE.
ADDITIONAL COVER MAY BE REQUIRED TO PREVENT FLOATATION. FOR TRAFFIC
APPLICATIONS, MINIMUM COVER, H, IS 12" UP TO 48" DIAMETER PIPE AND 24" OF
COVER FOR 54"-60" DIAMETER PIPE, MEASURED FROM TOP OF PIPE TO BOTTOM
OF FLEXIBLE PAVEMENT OR TO TOP OF RIGID PAVEMENT.
NOTE:
ALL CATCH BASINS OVER 3' DEEP SHALL
HAVE STANDARD STEPS ® 16" O.C.
WRAP BOX IN FILTER FABRIC
CURB TRANSITION TYPICAL ALL CURB
INLET LOCATIONS BOTH SIDES OF INLET.
CL CATCH BASIN
5'-0" 5'-0"
lie IL
ABACK OF CURB
allIloilo
1 1 1 1 1 1 INN—=
FACE OF CURBS LLIP OF GUTTER
STANDARD CURB & GUTTER
CURB TRANSITION AT CATCH BASIN
FINISH GRADE
ASPHALT
w
0
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FRAME, GRATE & HOOD
US FOUNDARY 5181
OR APPROVED EQUAL
I 8» �
PIPE DIAM.
MIN. TRENCH WIDTH
4"
21"
6"
23"
8"
26"
10"
28"
12"
30"
15"
34"
18"
39"
24"
48"
30"
56"
36"
64"
42"
72"
48"
80"
54"
88"
60"
96"
1.) OUTLET CONTROL STRUCTURE SHALL HAVE
STANDARD STEPS, 16" ON CENTER PRECAST
INTO BOX DIRECTLY BELOW MANHOLE ACCESS
AND NOT LOCATED ON SIDE OF BOX THAT HAS
AN ORIFICE OR THE OUTLET PIPE. TOP OF OUTLET CONTROL STRUCTURE
#10 W/ MANHOLE RING AND LID
2.) IN -SITU SOIL MUST NOT BE COMPACTED BY (4'X4' PRECAST CONCRETE BOX)
EQUIPMENT.
CAPPED W/ ORIFICE DRILLED INTO CAP
3.) CELL BOTTOM SHOULD BE SCARIFIED PRIOR (SEE ORIFICE DETAIL FOR SIZE AND ELEVATION)
TO CELL MATERIAL INSTALLATION TO PROMOTE
INFILTRATION. INSTALL TRASH RACK/SCREEN ON OPENING
(TOP AS NOTED ON PLANS)
4.) THE MAXIMUM SIDE SLOPES FOR THE INSIDE
OF THE BIO-RETENTION CELL SHALL BE 3:1.
WATER QUALITY
5.) SODED BIO-RETENTION CELL SHALL BE PONDING ELEV. = 2078.00'
SODED (SEE SOD NOTES)
6.) STORMWATER PIPING BETWEEN PROPOSED
OUTLET CONTROL STRUCTURE AND NEXT = 3•
DOWNSTREAM STRUCTURE SHALL HAVE WATER
TIGHT JOINTS
7.) OCS SHALL NOT BE KNOCK OUT PANEL
"WAFFLE BOX'S"• „ „
PIPE SEGMENT I MIN.
8.) THRASH RACK FOR OCS SHALL BE METAL
MINIMUM RECOMMENDED COVER BASED ON VEHICLE LOADING CONDITIONS AND NOT HAVE ANY OPENINGS GREATER THAN
9" IN ANY DIRECTION
SURFACE LIVE LOADING CONDITION
PIPE DIAM.
H-25
HEAVY CONSTRUCTION
(75T AXLE LOAD)
12" - 48"
12"
48"
54" - 60"
24"
60"
TOP OF BIO-RETENTION CELL ELEV = 2077.00'
CAPPED CLEAN OUT PIPE
W/ P107 COVER (TYP)
WASHED OR SAND BASED
F12" MAX. SOD (NON -CLUMPING)
PONDING (BOTTOM AND SIDES)
30" MIN. LAYER OF
SOIL MEDIA
9.) SOIL MEDIA TO BE SPREAD BY HAND WITH
NO MECHANICAL COMPACTION.
CONSTRUCTION SEQUENCE:
* VEHICLES IN EXCESS OF 75T MAY REQUIRE ADDITIONAL COVER 1.) DO NOT ALLOW FLOW INTO BIO-RETENTION 8" LAYER OF
#57 STONE
MINIMUM RECOMMENDED COVER BASED CELL UNTIL SITE IS STABILIZED. (PAVED /
ON RAILWAY LOADING CONDITIONS GRASS)
2 CLEAN OUT CELL IF USED AS A SEDIMENT
PIPE DIAM.
COOPER
E-80**
UP TO 24"
24"
30"-36"
36"
42"-60"
48"
IN SITU SOIL
BASIN DURING CONSTRUCTION. 2' MIN. DISTANCE
3.) INSTALL FILTER FABRIC 8" LAYER OF STONE, TO WATER TABLE
4.)UNDERDRLTER LL _ 1 L _I I_LI I1 _ 1j ATER TABLE
4. INSTALL FILTER FABRIC 4 WASHED SAND W_„_„_„_„_
AND SOIL MEDIA. 45• ELBLOW
5.) INSTALL SOD IN ENTIRE CELL. INVERT AS NOTED ON PLANS (TYP)
** COVER IS MEASURED FROM TOP OF PIPE TO BOTTOM
OF RAILWAY TIE. SOIL MEDIA REQUIREMENTS (BY VOLUME)
*** E-80 COVER REQUIREMENTS, ARE ONLY APPLICABLE 75-85% MEDIUM TO COURSE WASHED SAND
TO ASTM F 2306 PIPE. 8-10% FINES (SILT AND CLAY)
5-10% ORGANIC MATTER (PINE BARK FINES)
TYPICAL HDPE STORM DRAINAGE TRENCH DETAIL <30 P INDEX (IN NSW WATERS)<50 P INDEX (ELSEWHERE)
NOT TO SCALE
TOP GRATE
ELEV. AS NOTED
PRECAST CONCRETE BOX
WITH KNOCKOUT PANELS
INVERT
ELEVATION
� #67 STONE, COMPACTED
0°0°0°0°0°0°00000°0°0000 6" MIN
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COMPACTED SUBGRADE
CATCH BASIN
NOT TO SCALE
14'
3 1 1. 5' 31 III
5 LINER: 9" RIP -RAP
PERMANENT DRAINAGE SWALE
2' - 0"
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STEPS OF
ANHOLE TO BE'.
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INSTALLED ON
I I
STRAIGHT SIDE.
MANHOLE RIM & LID
US FOUNDARY 669-KL
OR APPROVED EQUAL
ECCENTRIC CONE SECTION MAY
VARY IN VERTICAL HEIGHT
WITH SUPPLIER BUT SHALL
BE 2' - 8" MIN & 4' - 0" MAX.
_ FILL LIFTING HOLES WITH
MORTAR BEFORE BACKFILLING.
JOINTS BETWEEN SECTIONS SHALL
BE SEALED WITH AN APPROVED
BITUMINOUS SEALANT OR GASKET
AND PLASTERED WITH MORTAR
INSIDE & OUT.
CENTER VERTICAL PRECAST
SECTIONS MAY VARY IN HEIGHT
BUT SHALL BE 1' - 4" MIN &
4' - 0" MAX.
MANHOLE BASES SHALL BE PRECAST
CONCRETE WITH INVERTS PRECAST BY
MANUFACTURER.
WRAP MANHOLE IN FILTER FABRIC
BASE FOUNDATION TO BE CONSTRUCTED
LEVEL WITH A MINIMUM OF 6" OF
WASHED STONE.
NOTE: MANHOLES SUBJECT TO
VEHICULAR TRAFFIC SHALL
BE TINDALL G48 OR EQUAL.
STORM DRAIN MANHOLE
NOT TO SCALE
6" PVC SCH 40 ENDCAP
NOTES:
W/ 1-1/8"0 HOLE
1.) DRAIN HOLE TO BE
DRILLED IN ENDCAP.
DRILLED IN CENTER OF
ENDCAP.
6" PVC/SCH-40
2.) ENDCAP MUST BE
FROM UNDERDRAIN
REMOVABLE FOR
MAINTENANCE.
1-1/8" 0 HOLE IN
\� 6" PVC SCH 40
CENTER OF ENDCAP.
ENDCAP W/
1-1 /8"0 HOLE
INV. OF 6" ENDCAP
DRILLED IN ENDCAP.
TYPICAL UNDERDRAIN ENDCAP DETAIL
NOT TO SCALE
TOP OF COVER
MANHOLE RIM & LID
US FOUNDARY 669-KL
OR APPROVED EQUAL 1'-11 2" 1 "
�1 8
MANHOLE COVER 8
MANHOLE RIM & LID
US FOUNDARY 669—KL
OR APPROVED EQUAL
2'-1 1„
4_
�11-11 4„
�2,-0
2 2"
2'—g 1„
4
MANHOLE RING
BIO—RETENTION CELL
CROSS—SECTION
NOT TO SCALE
MANHOLE RING & COVER DETA
NOT TO SCALE
NOTE: REQUIRED
WATER QUALITY
ELEV. 2078.00'
100-YR STORM —
WATER ELEV:2178.80'
25-YR STORM
WATER ELEV:2178.72'
2078.50'
1-YR STORM
WATER ELEV:2178.28'
111111110
PIPE, SWALE -
OR WATER BAR
- OUTLET PROTECTION
4" LAYER OF WASHED SAND
6" PVC/SCH-40 UNDERDRAIN
AND CLEANOUT STAND PIPE
I N V: 2073.50'
SIDES 1,2&3
6"
WGLA ENGINEERING, PLLC
724 5th AVENUE WEST
HENDERSONVILLE, NC 28739
[phone]
WGLA.COM
NC LICENSE P-1342
PIPE SEGMENT "H"
SINGLE LAYER OF NON -WOVEN GEOTEXTILE
FILTER FABRIC TO ENCAPSULATE #57 STONE
SOD NOTES:
1) COMPOST AND SOD TO BE INSTALLED AFTER
SITE IS FULLY ESTABLISHED.
2) PLACE 1-2 INCHES OF ORGANIC COMPOST,
LIME AND FERTILIZER.
3) PLACE SUPER -SOD ELITE TALL FESCUE (OR
APPROVED EQUAL) AS SHOWN ON PLAN.
4) ALL SOD TO BE NON -CLUMPING TURF GRASS
5) ALL SOD TO BE WATERED BY THE
CONTRACTOR UNTIL SOD IS FULLY ESTABLISHED.
THE SOD SHALL BE WATERED BY THE
CONTRACTOR DAILY FOR TWO WEEKS AFTER
INSTALLATION EXCEPT IN CASES OF RAIN. THE
SOD SHALL BE WATERED EVERY OTHER DAY FOR
TWO ADDITIONAL WEEKS THEREAFTER.
12"
SIDE 4
. ', •t f. ', •t f.
OUTLET CONTROL
STRUCTURE ¢#10
NOT TO SCALE
A
FILTER FABRIC �ECTION VIEW
RIP —RAP APRON — LA
PLAN VIEW
CLASS I RIP/RAP
DEPTH = 1 1 /2 TIMES THE MAXIMUM
STONE DIAMETER, (d MAX), NOT
LESS THAN 6".
NOTES
d50 = MEDIAN STONE SIZE
dMAX=1.5Xd50
N0.
D
LA
d50
SIZE
9
24"
10'
9"
MAINTENANCE:
INSPECT RIPRAP OUTLET STRUCTURE WEEKLY AND
AFTER SIGNIFICANT (1/2 INCH OR GREATER)
RAINFALL EVENTS TO SEE IF ANY EROSION AROUND
OR BELOW THE RIPRAP HAS TAKEN PLACE, OR IF
STONES HAVE BEEN DISLODGED. IMMEDIATLEY MAKE
ALL NEEDED REPAIRS TO PREVENT FURTHUR
DAMAGE.
TYPICAL OUTLET PROTECTION
N.T.S.
2078.00' l
A NEW FACILITY
FOR
PARDEE
PARTNERS
ASC
(T.B.D.) BOYLSTON HWY
MILLS RIVER, NC
28759
CASSE7"7"Y
J. CLINTON CASSETTY
ARCHITECT
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8/10/2021
CASSE7TY
100 Country Club Dr., Suite 206
Hendersonville, TN 37075
[phone]
www.cassettyarch.com
THIS DRAWING AND DOCUMENT CONTAINS
INFORMATION PROPRIETARY TO THE
ARCHITECT. THE REPRODUCTION, COPY
OR USE OF THIS DRAWING AND DOCUMENT
WITHOUT THE WRITTEN CONSENT IS PROHIBITED
AND ANY INFRINGEMENT WILL BE SUBJECT TO
LEGAL ACTION. ALL RIGHTS RESERVED.
COPYRIGHT 2021.
ORIG. ISSUE DATE:
05-19-2021
8-10-21 STORM (1)
DHSR PROJECT #
AS-440
PROJECT NUMBER
2120
STORMWATER
DETAILS
C-401
NOT TO SCALE