SW3240705_Plansheet - SCM Detail_20240805

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4 va y - 4 4 _ v _ \ ""oc a- a / ` I\ I o U U
I - 4 -_ - a - v _ �- - s -1 - d __ - _ __a_ -\ 4 -- _ W4 _ - 4 - _ - - v - I v` / / 30"X30"ACCESS DOOR to ao
4 I o C 4 C\ v 4 4 - 4 _ \_ v < o I GALVINIZED SQ.GRATE W/ TOP OF BERM=649.00 N o
15" - \ c_ Gump, / ( ^ _ ✓ HINGED ACCESS DOOR GRATE SHALL BE
/ CONC.EDGING N
RECESSED INTO Lm („) .v
646 SCM MAINTENANC \ ( ( ` Y Y PRECAST STRUCTURE U 0 Z U) ; N N
❑ I \ ) \ - - ra 4.0'X4.0'SQUARE w AND FLUSH WITH TOP O m Y = M N h
RCP PROP. 10'SCM ACCESS \ REQUIREMENTS POSTED / / ( 1 � m = ao o
( \ \ 647.00 INSIDE of eox 2 J g co n
v, AND MAINTENANCE DRIVE 647 ON WEATHER PROOF SIGN /
DI#A13 CB#Al2 4 I (15%MAX GRADE NEAR RISER STRUCTURE , / , ONE-6.0"X 3.0" d U M LL r` w 3
v _ 5%MAX CROSS-SLOPE / SCM 1 OUTFACE / I
0 6 0 3
1 I I I ) / \ \\ \\ \\ 4.00' ORIFICE AT 644.00 EPDXY COATED STEPS RECTANGULAR LLJ 3
649 649 - - - - \ BACK SIDE OF RISER
4 ellCAST INTO SIDE OF
I 1 I \ \ S�� / \ \ \ r OUTLET EYOND STRUCTURE @ 14"O.C.
MAX
�� I / I \ G I / \ ) I I (REAR WALL)
649 �s I I 644.16 Q_
PROP.SCM ACCESS a I OUTLET CONTROL 648 6' �'Y, I I / \ I I I I I - TEMP.POOL r WATER(I DIP WITH ORIFICE
REE STEPS
EASEMENT TO PUBLIC o sz m / /
U 647 STRUCTURE(RISER#1) y p / -
RIGHT-OF-WAY uJ z PRIMARY SPILLWAY& 2�` I I BEND-PAINT WITH SILVER
v RG / 642.50 PROVIDE ISCREWIONACAP WITH
I - ^ EMERGENCY SPILLWAY I / I ' ' INV.=642.50 PERM. _ _ 2.5"DIA ORIFICE INSIDE OF TOP VIEW OF GRATE
645 - - -� 645 ' I I - - - POOL STRUCTURE
LU
SEE DETAIL(TYP.) / /
a 643 I I = _ NV.=642.50
II _ _ - - - PRE-CAST CONCRETE STRUCTURE WITH
' ❑ Z J I I_ h I / / H-20 RATED WALLS.CONCRETE SHALL BE
"° fib` M �_ _ _ _ - - - - - - - - - - I 3:1 I / / I I / / '- e- FILL BOTTOM 2.50'OF e- 4,000 PSI AT 28 DAYS MINIMUM.
I �- p I I I STRUCTURE WITH _ _ °
�12
W a I ¢ � 641 I a CONCRETE FROM
I❑ ❑ I m 6S2 "I" 642 / I / / - ° - - BOTTOM OF POND TO - a_ ° - TOP OF BERM
' IL/ _ ( / / / I / / / °p.-• _ _ OUTFACE INVERT(642.50) °P• e ° 649.00
I 639 639 SCM 1 RISER /
1 ° 3:1 637 a / I NV.OUT=642.50 /
El Eltl I I l I 640.00 1 I 636 I / / - - • S LITTORAL 3
' 635 / / / ' ' / SHELF 10:1 1 - �
/ v" _ PROP. RIP RAP APRO 1 / / ROP. RIP RAP APRON n LEFT SIDE VIEW FRONT VIEW - -III-III-
Ian) a) / La=12%W1=6' _ _ -
❑ ❑ CB#A2 La=23%W1=8' a w I - - -
( 4 M� I / � / W2=14';T=1.0' OUTLET PIPE BEYOND 6"THICK,6'x 6'ANTI-FLOATATION �XII I�I�II/I/
I I / jr - - - -
W2=26';T=2.00' I / /Cp / BLOCK.BLOCK SHALL BE SECURED 11-111-111-11-_ _ � �` n ////
NV.OUT=640.50 ; �••• ..... �� ��
TO BASE OF RISER WITH#4 REBAR C\ �\
3 30"RCP I 1tM0 M pN) O I / /� Qc� / 3.7 i Cp / / /❑ / / /' SPACED 18" A CENTER AROUND ; • • ••• • 1
/ / /^ / PERIMETER BASE OF STRUCTURE. - - -I I-I J �` •%'
❑ �I BS / v _ � M / PROP. SCM#1 / / �� oh/ / // / 2.0"DIAMETER - IIII-III-III- 7845 LF OF 24" RCAT .46% WITH
/ 4 I // (WET POND) / / / �� y/ / / �`y // X RISER STRUCTURE ELEVATION DETAIL ORIFICE _ -III- SINGLE OFFSET PROFILE GASKET JOINTS _ �• LICENSE NO.:
❑ 2:1 / NV.=642.50 - - - - -_ -_ - i F-1407 `
/ / - - -
2:1 ••
ROP.ANTI-SEEP COLLAR -_ -_ -_ -_ -_ - `
(SEE DETAIL THIS SHEET) II-III-III-III-III-III1II-I ��jA ••••••••WATER ••
I / / , ORIFICE END OFAPI E 2 LITY '/// S"�C�
M
('s _ co a ^ 634.00 /' / / / / / / / SHALL BE I2"BELOW 1 - ':'•-i'� /'�����II�1,�,�```
Ci v- CO v I I PERMANENT / / // / / / / / / / /
co PERMANENT WATER
ELEVATION
hD / c I WATER ELEV.
/ �o M� _ ' 634.00 @ 642.50'
/ OF POND
� // � //
/ e PROP.2"PVC PIPE AS r - / �� / / / / // X/ 634.00 SEDIMENTST°RAGE t:- RISER STRUCTURE SECTION DETAIL ��� �• 9 ���
VERTICAL SEDIMENT 640 ci EXIST. PROPERTY
66y► 6'�., / DEPTH MARKER 636 / �o� / / BOUNDARY (TYP.) NOT TO SCALE - SEAL
639 �, 3, RISER STRUCTURE #1 DETAIL 038830
CB#A3 co 643 - / / �O �� / WET POND-SCM NO.1
(WET POND SCM NO. 1) ��••. �. � .•���
i 642 BOTTOM ELEV.=635.00 �i� NG I N`G�• ���
TOP ELEV.=649.00 T • ••••••• \�\
PERMANENT POOL ELEV.=642.50 �''�;Ew
4 647 ri 10'LITTORAL / / (EXCAVATE V BELOW CONTOURS 2024.06.26 15:37:42-04'00'
SHOWN FOR SEDIMENT STORAGE)
SHELF 644 / n I
Q 649 r / / I m
646 / / / I LITTORAL SHELF MAINTAIN MIN. 10' SETBACK
4 v \\7`r / / I OUTLET STRUCTURE WITH W/ WETLAND FROM PROPERTY LINE TO
649 10'TOP 648 I POST CONSTRUCTION TRASH RACK. 6" MIN. PLANTINGS - OUTSIDE TOE OF SLOPE OF
FOREBAY EXCAVATE 11 BERM // / / / I I CONTROLS EASEMENT FREEBOARD FROM TEMP. 10' MIN. EMBANKMENT.
1 "�0 V BELOW DESIGN\� / I 10' OFFSET FROM POOL ELEV. WIDTH
7i SLOPE BREAK RIP RAP BERM AND 10:1 SLOPE
° CONTOURS FOR ,$ / / (Nor USED)
WEIR CLASS B RIP EMERGENCY SPILLWAY
_ � I INVERTED WATER
/ RAP 15" MIN. DEPTH.
/ / / 100 YEAR EVENT QUALITY ORIFICE
a °; rn SEDIMENT STORAGE �Aa$ r 649 LITTORAL SHELF EXCAVATE MAIN STORMWATER STORAGE LocarED rHIS SIDE 6" FREEBOARD
A STABILIZE INTERIOR AND
PROP.40'WEIR @ 10:1 (TYP.)- / / POOL 1'BELOW , EXTERIOR OF EMBANKMENT
00 I / 647 SEE DETAIL / ❑ DESIGN CONTOURS 648.32 WITH GRASS
I _ _ AT 642.50' g_ FOR SEDIMENT - - - - - -
I / /' , s's 6" MIN. FREEBOARD 3:1 SLOPE
(SEE DETAIL FOREBAY BERM / ® y 2 A
( 1 _ THIS SHEET AT 643.00- / / / STORAGE ° TEMPORARY POOL
645 n F.E.S. OR F WQV=644.16 Q POST CONSTRUCTION
) ��$ / / � a HEADWALL 0 _� - �,� CONTROLS EASEMENT
SEE DETAIL fir- / / POND TO BE LINED s
�� / a 6" 10' OFFSET FROM
1 I i- / PERMANENT POOL
� $ / WITH 12"THICK 2 m _ 642.50 IIISLOPE BREAK
/ � / \ (MIN.)CLAY LINER 7S y
$�N� / TO TOP OF Know what's below.
a h� I _ LITTORAL CaII before you dig■ INLET PIPE 10' LITTORAL SHEL l0 F 1 1 o 10' �-
b ( i c � L / (S E NOTES ONF o A ro 5
III-III- -
I Ico I I / _ / THIS SHEET 2:1 SLOPE STABILIZED = _ _ _ _ = I I III 7 IT 11 IIII III IIII
h ) ENERGY DISSIPATOR
IM ❑ �I❑ ❑�I �� /i / GRAPHIC SCALE TO POND BOTTOM ��
BACK OF PROVIDE
SEDIMENT FOREBAY POND TO BE LINED OUTLET REINFORCED SEEPAGE ENERGY
20' 0 10, 20' 40' 80' WITH 12"THICK STRUCTURE CONTROL
LOCATED AT MEASURES OUTLET
CONCRETE
I I / / TOR
) TOE OF 10:1 RCP REQUIRED ON PROTECTION
El ❑ El ❑ I ❑ ❑ ❑ ❑ / / !I " MI TOP OF LITTORAL SLOPE ANTI- FOR(RCP)
PE. OUTLET A
I I 1 0 I / NOTES: SHELF MAIN POND PAD PERMITTED.
I I / FLOTATION NO HDPE OR CMP PIPE
� 3:1 I \ \ < / I � i ( IN FEET )
1 INCH = 20 FT. 1. 4-6 INCH LAYER OF AMENDED SOIL IS RECCOMMENDED ON LITTORAL SHELF
AREA WHERE PLANTINGS ARE REQUIRED (SEE SOIL PARAMETERS IN SCM DESIGN
SCM NOTES: MANUAL) O
In
SUMMARY OF INSPECTION AND MAINTENANCE REQUIREMENTS 2. PROVIDE 20 ACCESS EASEMENT TO CONNECT WETPOND EASEMENT TO DEDICATED >
*TOWN REPRESENTATIVE MUST BE PRESENT AT ALL TIMES WHEN WATER QUALITY FEATURE IS BEING STEP 4:OUTLET PIPE FILL PLACEMENT RIGHT OF WAY. ACCESS ROAD SHALL HAVE MIN. 12' STABILIZED WIDTH, MAX.
INSTALLED.A 48 HOUR NOTICE MUST BE GIVEN PRIOR TO STARTING OF ANY WORK. REQUIRED MAINTENANCE FREQUENCY LONG. GRADE OF 1 5%, MAX. CROSS-SLOPE 5%.
1. FILL OF THE CULVERTS SHALL BE PLACED AND COMPACTED IN 6-INCH THICK LOOSE LIFTS AROUND
EMBANKMENT FILL MATERIALS THE OUTLET STRUCTURE AND ABOVE THE CULVERTS. 3. DEMONSTRATION OF APPROPRIATE SAFETY FACTORS AGAINST FAILURE THROUGH �
NOTE EROSION OF POND BANKS OF BOTTOM SEMI-ANNUAL INSPECTION GEOTECHNICAL ANALYSIS BY A LICENSED PROFESSIONAL ENGINEER SHALL BE o
1. BORROW MATERIAL SHALL BE CLASSIFIED AS ML, MH,CL OR CH SOILS ACCORDING TO THE UNIFIED 2. COMPACTION SHALL BE PERFORMED BY HAND TAMPERS OR SMALL HAND OPERATED COMPACTORS. INSPECT FOR DAMAGE TO THE EMBANKMENT REQUIRED FOR EMBANKMENT SLOPES STEEPER THAN 3:1.
SOIL CLASSIFICATION SYSTEM(ASTM D2487)OR ANY MIXTURE OF THESE SOILS. MONITOR FOR SEDIMENT ACCUMULATION IN THE FACILITY AND FOREBAY ANNUAL INSPECTION
3. COMPACTION SHALL BE AT A MINIMUM 95 PERCENT OF THE STANDARD PROCTOR(ASTM D698) ENSURE THAT INLET AND OUTLET DEVICES ARE FREE OF DEBRIS AND OPERATIONAL 4. WATER-TIGHT SEAL MUST BE PROVIDED BETWEEN ALL RISER AND PIPE JOINT O
2. BORROW MATERIALS SHALL HAVE A LIQUID LIMIT(ILL)BETWEEN 40 AND 60 AND A PLASTICITY INDEX MAXIMUM DRY DENSITY.COMPACTED MOISTURE CONTENT SHALL BE BETWEEN 3 PERCENT BELOW REPAIR UNDERCUT OR ERODED AREAS CONNECTIONS. z
(PI)BETWEEN 15 AND 30(ASTM D4318). AND 3 PERCENT ABOVE THE OPTIMUM MOISTURE CONTENT FOR ALL FILL PLACED OR AS OTHERWISE MOW SIDE SLOPES STANDARD MAINTENANCE
APPROVED BY THE ENGINEER. PESTICIDE/NUTRIENT MANAGEMENT
3. MATERIAL SHALL BE FREE OF TOPSOIL,ORGANIC MATERIAL,ROOTS,STUMPS,BRUSH,ROCKS LITTER/DEBRIS REMOVAL U
LARGER THAN 3 INCHES,SUBSOIL,DEBRIS,VEGETATION AND OTHER FOREIGN MATERIAL. 4. ADDITIONAL COMPACTION OF LIFTS 2 FEET OR GREATER ABOVE CULVERTS SHALL CONFORM TO THE SEED OR SOD TO RESTORE DEAD OR DAMAGED GROUND COVER ANNUAL MAINTENANCE Z
EMBANKMENT FILL PLACEMENT SECTION OF THIS SPECIFICATION. (AS NEEDED) J
4. ALL MATERIAL CLODS SHALL BE BROKEN DOWN WITH TILLERS AND/OR DISCS TO PROVIDE W ET P 0 N D PROFILE Q
HOMOGENEOUS SOIL THAT IS FREE OF CLAY CLODS GREATER THAN 3 INCHES IN DIAMETER. 5. DRAINAGE AREA MUST BE STABILIZED BEFORE FILTRATION CONTROLS AND FILTER MEDIA ARE REMOVAL OF SEDIMENT FROM THE FOREBAY 5 TO 7 YEAR MAINTENANCE
t-
INSTALLED. MONITOR SEDIMENT ACCUMULATIONS,AND REMOVE SEDIMENT WHEN THE POND ZQ
EMBANKMENT CONSTRUCTION VOLUME HAS BEEN REDUCED BY 25% 25 TO 50 YEAR MAINTENANCE
FIELD QUALITY CONTROL Z
STEP 1:SUBGRADE PREPARATION -
1. PERFORM LABORATORY MATERIAL TESTS IN ACCORDANCE WITH ASTM D422,ASTM D698,ASTM D2216 ILL
1. COMPACT SUBGRADE TO DENSITY REQUIREMENTS FOR SUBSEQUENT FILL MATERIALS. AND ASTM D4318. SCM#1 WET POND SUMMARY CHART LENGTH OF WEIR H 5 FT. MIN. ER 1/3 Z O
2'-0" MIN THE LENGTH OF THE FOREBAY BERM, ♦^ Z
2. CUTOUT SOFT AREAS OF SUBGRADE NOT CAPABLE OF COMPACTION IN PLACE. 2. TEST AT A FREQUENCY OF EVERY 500 CUBIC YARDS OF EMBANKMENT FILL MATERIAL PLACED,WHEN PEAK CONTROL PRE-DEVELOPMENT POST-DEVELOPMENT POST-ROUTING WHICHEVER IS LARGER) Q V
MATERIALS USED FOR EMBANKMENT FILL CHANGE,AND/OR AS DIRECTED BY THE ENGINEER. STORM EVENTS RUNOFF RUNOFF RUNOFF ELEVATION O O
3. SCARIFY SUBGRADE SURFACE TO A DEPTH OF 6 INCHES. -0'-
RIP RAP BERM � Q
3. SAMPLE SIZE SHALL BE 50 LB. TOP OF DAM 649.00 TOP OF BERM TOP OF FOREBAY BERM -6 AND WEIR Q Z
4. PROOF ROLL SUBGRADE TO IDENTIFY SOFT SPOTS; FILL AND COMPACT TO DENSITY EQUAL TO OR 25YR- 24HR 19.99 CFS 78.29 CFS 17.29 CFS 647.45 AT WQv PEAK STAGE 6 O
GREATER THAN REQUIREMENTS FOR SUBSEQUENT FILL MATERIAL. 4. PERFORM IN PLACE COMPACTION TESTS IN ACCORDANCE WITH ASTM D1556 OR ASTM D2937 AND TOP OF WEIR
STEP 2:SEEPAGE KEY PLACEMENT NATURAL MOISTURE CONTENT TEST IN ACCORDANCE WITH ASTM D2216. 10YR- 24HR 12.58 CFS 63.03 CFS 3.76 CFS 647.13 F O PERMANENT POOL CIO 77
a 5. FREQUENCY OF COMPACTION/NATURAL MOISTURE CONTENT TESTS:
2YR- 24HR 3.12 CFS 38.04 CFS 1.01 CFS 645.59 o-;_-`;_- TOP OF WEIR
BMP RE UIRED VOLUME CF ELEVATION a -: W
1. SEEPAGE KEY TRENCH WILL BE LOCATED BETWEEN EMBANKMENT ABUTMENTS. EMBANKMENT FILL: Q ( )
o EACH LIFT SHALL BE TESTED AT A MINIMUM FREQUENCY OF 1 PER 2,500 SQ.FT.
z WQV 23,224.54 644.16
0 2. SEEPAGE KEY SHALL EXTEND TO A MINIMUM DEPTH OF 4 FEET OR AS REQUIRED THROUGH PIPE INSTALLATION:
wGEOTECHNICAL SEEPAGE ANALYSIS. A MINIMUM BOTTOM TRENCH WIDTH SHALL BE 10 FEET AND THE EACH LIFT SHALL BE TESTED AT A MINIMUM FREQUENCY OF 1 PER 30 LF OF PIPE PERMAN ENT POOL 57,078.80 642.50 SEE SECTION U
TRENCH SIDEWALLS SHALL BE SLOPED OR BENCHED TO PROMOTE STABILITY AND BONDING WET PON D MAX ALLOWABLE BUA 282,706.00-SF SUITABLE BACKFILL MATERIAL.
BETWEEN THE SIDEWALL SOILS AND SEEPAGE KEY FILL. 6. WHEN TESTS INDICATE WORK DOES NOT MEET SPECIFIED REQUIREMENTS, REMOVE WORK,REPLACE C
g AND RETEST. FOREBAY BERM AND WEIR SECTION
STEP 3: EMBANKMENT FILL PLACEMENT FOREBAY BERM AND WEIR DETAIL � (n
1. EMBANKMENT FILL SHALL BE CONSTRUCTED AT 3(HORIZONTAL)TO 1 (VERTICAL)OR AS SHOWN ON WET POND MAINTENANCE - DEWATERING: O
3 THE CONSTRUCTION DRAWINGS.DEMONSTRATION OF APPROPRIATE SAFETY FACTORS AGAINST
FAILURE THROUGH GEOTECHNICAL ANALYSIS SHALL BE REQUIRED FOR SLOPES STEEPER THAN 3:1. 1) POND IS TO BE PUMPED TO DRAIN FOR MAINTENANCE AND REPAIR NEEDS. TRENCH
I� TRENCH t 1 ♦ 1
I- - -I GRADE WIDTH v V
m 2. FILL SOILS SHALL BE PLACED IN LOOSE LIFTS NOT TO EXCEED 8 INCHES IN THICKNESS AND BE -III c U
M 2) CONTRACTOR SHALL SUPPLY PUMP,HOSE AND OTHER REQUIRED APPURTENANCES AS - `' � � " -= - =III � = U = 2' III= =111- Z
o COMPACTED TO A MINIMUM OF 95 PERCENT OF THE SOILS STANDARD PROCTOR(ASTM D698) REQUIRED TO DRAIN THE PERMANENT POOL WATER VOLUME FROM THE STORM WATER = -III =III= STRUCTURE -
c; MAXIMUM DRY DENSITY,OR AS SPECIFIED ON THE CONSTRUCTION DRAWINGS. CONSTROL MEASURE(SCM)WET POND. III=._ J = -III= z 11 MIN III=III
N I=III L� I I =1 I I w =1 I MI.
1 111-11 0 24 111=111= DEPTH FOR J
L 3. COMPACTED MOISTURE CONTENT SHALL BE BETWEEN 3 PERCENT BELOW AND 3 PERCENT ABOVE 3) PUMP/HOSE INLET SHALL BE SECURED AT LEAST 6"ABOVE THE BOTTOM OF THE WET POND TO = _ O _ III III= ~ . - = ° EMERGENCY a N� Q
0? THE OPTIMUM MOISTURE CONTENT FOR ALL FILL PLACED,OR AS OTHERWISE APPROVED BY THE PREVENT SEDIMENT INTAKE AND DISCHARGE. it -III = PERMANENT POOL - yT/i��- OVERFLOW + i W
-11 L1 1=1.. 11 1
M ENGINEER. a _ - T�
6" FREEBOARD
0 4) SCM WATER LEVEL SHALL BE LOWERED AT A MAXIMUM RATE OF 12 INCHES PER DAY. -
M 1' 0"
a
N 4. FILL SOILS SHOULD BE PLACED IN CONTINUOUS, HORIZONTAL LAYERS FROM ABUTMENT TO SPILLWAY
CONTRACTOR SHALL BE RESPONSBILE FOR MONITORING WATER LEVEL THROUGHOUT THE ,� • ': � _ . ■
ABUTMENT.EXISTING SLOPES GREATER THAN 4(HORIZONTAL):1(VERTICAL)SHALL BE BENCHED TO DURATION OF PUMPING. 12 -I!I 1 24" ° 12" MUST BE
a PROMOTE BONDING OF NEWLY PLACED FILL WITH EXISTING SOILS.BENCHING SHALL BE PERFORMED - LINED AND
=1 -_IT° _I RCP 36„
AT MAXIMUM OF 2 FEET VERTICAL INTERVALS AND SHALL EXTEND A MINIMUM OF 4 FET 5) PUMP DISCHARGE SYTEM SHALL BE EQUIPPED WITH A SILT FILTER BAG WHICH SHALL BE Ili - WATER QUALITY ORIFICE STABILIZED EMERGENCY SPILLWAY DETAIL
HORIZONTALLY OR AS SPECIFIED ON DRAWINGS. TEMPORARILY INSTALLED NEAR THE WET POND'S PERMANENT OUTFACE RIP RAP APRON. - = ANTI-SEEP  " : - TO RESIST PROJECT INFORMATION
co j= 1 COLLAR - � III- EROSION
0 5. WITHIN THE UPPER 12 INCHES OF EMBANKMENT, FILL SOILS SHOULD BE COMPACTED TO 100%OF ITS 6) CONTRACTOR SHALL ENSURE THAT THE FILTER BAG OUTFLOW DISCHARGES AT A -11I a: 11=1i 1= WATER QUALITY ORIFICE DETAIL (CONCRETE PROJECT MANAGER: MRR
U II=_ 1 III-I
STANDARD PROCTOR(ASTM D698)MAXIMUM DRY DENSITY. NON-EROSIVE VELOCITY. - III = - PREFERRED)
11 I- 1=I 11=111=1 I- DESIGNED BY: CKY
11 == II ANTI-SEEP COLLAR. 12" =111-
6. FILL AGAINST SUPPORTED STRUCTURES.DO NOT FILL AGAINST UNSUPPORTED STRUCTURES. 7) CONTRACTOR SHALL VERIFY THAT NO SEDIMENT DISCHARGE OCCURS DOWNSTREAM OF = CLASS B CONCRETE 36" DRAWN BY: CKY
Y PUMPING OPERATION. III:
m 7. PLACE FILL SIMULTANEOUSLY ON EACH SIDE OF UNSUPPORTED STRUCTURES UNTIL SUPPORTS ARE SECTION A-A NOT To SCALE PROJECT NUMBER: 23 01377
IN PLACE. 8) AT THE CONCLUSION OF THE PUMPING OPERATION AND POND MAINTENANCE,THE PLAN VIEW
W ET P O N D
CONTRACTOR SHALL REMOVE THE SILT ACCUMULATED IN THE FILTER BAG TO AN OFFSITE ORIGINAL DATE: 0612512024
� 8. PLACE A MINIMUM OF 6 INCHES OF TOPSOIL ACROSS DAM EMBANKMENT TO PROMOTE VEGETATIVE LOCATION. SHEET:
GROWTH. ) ANTI-SEEP COLLAR (SCM NO.1 ) DETAILS
co9 CONTRACTOR SHALL THEN REMOVE PUMP, HOSE,AND APPURTENANCES AND RETURN THE WET
POND BACK TO NORMAL OPERATION. NOT TO SCALE C3. 5

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SCM MAINTENANCE REQUIREMENTS _ - - - - - _ _- - - O a J 00 C9 U
- - - - / - - - - / - - - - �/ - - - - _ / POSTED ON WEATHER PROOF SIGN_ - - - - - - - Q a o oa °'- - -�G - - - - - - - - -
- -/ - - -�- - - - - - - T - /- - - - - -t - - - d vLL r-- cw 3
CRISMARK DR / / / / x / NEAR RISER STRUCTURE _ - _ _ - _ U co 3
50' PUBLIC R/W /'� / �x // PROP.STORM WATER EASEMENT - - - - - - - _ - - - - - W 3
PC J FILE 692-695 / / / (TYP.)
I PROPERTY LINE(TYP.) _ _ - ' - a
APPROX.FUTURE 5'X20' - - 7r-
cu
ENTRY MONUMENTw LOCATION � � _ - - - -
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- - - -- - - - - - - - - --j - - -_-.-_ <__-->"==-a�-.. Y=< • =-,_'- -°� -.<- -_�.- -•s - - _ RAIL
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� U I - _ _ \ - - - �� / 1 1 FINISH GRADE gMP FENCE �c SCREENING DETAIL
W 0000 / � /� � �
m L) _ _ l \ 11 FOOTING
] d'I w 1__ •_ __
a a I _, POST (TYPICAL SECTION)
1 (D (-��
a 1 �� 10 PROP. 10'SCM ACCESS
- - V - AND MAINTENANCE DRIVE PLANT SCHEDULE
] ❑ I 1 1 (15%MAX GRADE _ _ / l �/ ) /
5%MAX CROSS-SLOPE) ` I \ SYMBOL CODE QTY BOTANICAL/COMMON NAME METHOD MIN.SIZE
] ❑ I _ .6. W/12'GATE _
] ❑ PROP.4'FENCE I // / SHRUBS
<' SEE DETAIL THIS PAGE
❑ ❑ PROP.STORM WATER - 1 I / // I I IN 23 ILEX VOMITORIA'NANA'/DWARF YAUPON HOLLY CONT. 2' HT. MIN.
' EASEMENT(TYP.) � - - - - - - - - ' 1 � I I / ❑
] ❑ ❑ �II \ ' I I / / ML 18 MAGNOLIA GRAND IFLORA'LITTLE GEM' /LITTLE GEM DWARF SOUTHERN MAGNOLIA CONT. 2' HT. MIN. O� % ♦♦
PROP.SIGHT � �
❑ ❑ LINE(TYP.) � oopOpooOCLO2o 0000p 000p opp0popo_0opp�Opp OpppO pppOOppoO���pOp��Opp Opp opoon-pppOp00Opp ❑ ❑/❑ ❑ 4 / / `� �:cPP F�T:� ioo
❑ ❑ PROP.CONC. i- cO OO. /
SIDE c°�` p °000°000 o°oo o°oo o°oo o°oo° o°oo o°o0 000 000 00 °0 00 00 0 ocao 00 °oao 0 0 0°0 000 000 000 000 000 000 00 00 000 000 000 000°o0 000 000 000 00 00 000 00 ❑ ❑ ❑ IJ *;z v�*
WALK(TYP.) O o0 000 000 00 00 00 00 000 00 0 000 000 oocoocoocoocoo oocoocoocoocoocoo co c�°000coocoocoo cocc000 0 oocoocoocoo coc occoccocco ccoo�occoccocco / / / VB 18 VIBURNUM X'BURKWOODI I'/BURKWOOD VIBURNUM CONT. 2' HT. MIN.I El El 0
(18)ML .i ccc 1 0000 / / /El El El E3, / / / / // // i :��! 3�!•
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1 ❑ ❑ `_ O c o ✓ occo O I / / ❑ ❑ ❑ 0 / / / ♦ �'O i�32! NO�y�•'���
(23)IN o °co I oo°° O / // / ♦j� qs•••.....•• G,, `��
❑ ❑ / 1s've •:] , 000° o l / ❑/❑ ❑ ❑�
❑ ❑/ ( /) _ ` = °° / / °000 p
/ / / °c p / / ❑ CY ❑ ❑/El / // / 1
LITTORAL SHELF
I ❑ 4 PROP.EVERGREEN s $coo / / ococ p / / / / ❑ g❑ ❑ 0 8.0'
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_-_ _ 842 m;
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BOTTOM ELEV:635
< o 0o TOP ELEV:649 O / / Q
0�°0 /' / 3.88'SPACE(4.88"O.C.) •• �� ��
PERMANENT POOL ELEV:642 ❑ ❑ ❑ / / / / ♦j 9�`'.,, f`�� �r
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/ +� _ - -• O o 00 � -IT H H H H H H H H H H H H H 5.375' 2024.0���V�V�108-04'00'
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FENCE(TYP.) / / 4-_0„ 3.188'
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❑ ❑ ❑ ❑ \� \ 9o"y PICKET 1.5"x 1.5"CHANNEL
, X 1"X.060' SCALE
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/ GRAPHIC SCALE
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❑ ❑ ❑1❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑( / / / / 20' 0 10' 20' 40' 80' 0
❑ ❑ ❑ 10001l ❑ ❑ ❑1 ❑ ❑ ❑ 1❑ ❑ ❑ ❑�0 ❑ ❑ / / / /
❑ ❑ ❑ b ❑ ❑ ❑ ❑ ❑ 010 ❑ ❑ � ❑ ❑ ❑ � ❑ ❑ ❑ ❑/1J ❑/ 7 ❑ ❑ ❑ ❑ / / LITTORAL SHELF PLANTING SCHEDULE a
�I I n 1 / ( IN FEET ) KEY BOTANICAL NAME COMMON NAME SIZE SPACING QTY LOCATION z
fl-I n ❑ ❑ ❑ ❑ ❑ �❑ ❑ ❑ � ❑ ❑ 1\❑ ❑ ❑ En ❑ ❑ ❑ ❑ ¢ Q ❑ ❑ ❑ � ❑ ❑ ❑ ❑ ❑/1�/❑ ❑ ❑ 1 INCH - 20 FT.
41 � r-I rl /h n I-I I-1 n � 1" I n n ❑ ❑ ZONE 1-3: TOTAL AREA- +/- 4,936 SF (4,936 x .25 - 1,234) OR 1,234 PLANTS REQUIRED
......° 2' D.C. 585 PER PLAN ELEVATIONS: 599.00'-599.44' Z,,,,,,, RHCO RHYNCHOSPORA COLORATA STARRUSH WHITE 2 x5 PLUG
SCM PLANTING NOTES GENERAL SCM CONSTRUCTION SEQUENCE NOTES COMPACTED SOIL (CLAY) LINER SPECIFICATIONS: .222222 HILA HIBISCUS LAEVIS HALBARDLEAF ROSEMALLOW 2"x5" PLUG 3' O.C. 68 PER PLAN ELEVATIONS: 599.44'-599.57'
1. SIZE,QUALITY AND OVERALL HEALTH OF ALL PLANT MATERIAL USED SHALL 1. AFTER SITE HAS BEEN STABILIZED AND WHEN SEDIMENT BASINS ARE READY TO BE THE SCM POND SHALL INCLUDE A COMPACTED SOIL LINER.THE EARTHWORK CONTRACTOR °o°o°o° ASIN ASCLEPIAS INCARNATA SWAMP MILKWEED 2"x5" PLUG
° ° ° ° 2' D.C. 585 PER PLAN ELEVATIONS: 599.57'-600.00'
CONFORM TO THE LATEST EDITION OF ANSI Z60"AMERICAN STANDARD FOR NURSERY ° ° ° ° �
CONVERTED TO WET PONDS DE-WATER BASINS,REMOVE ANY ACCUMULATED SHALL FURNISH ALL LABOR, MATERIAL,SUPERVISION,AND EQUIPMENT TO COMPLETE THE
STOCK"AS PUBLISHED BY THE AMERICAN NURSERY AND LANDSCAPE ASSOCIATION. Z
SEDIMENT,PLACE STOCKPILED FILL TO CONSTRUCT LITTORAL SHELF,AND VERIFY COMPACTED SOIL LINER FOR THE POND,INCLUDING HAULING,SIEVING,RAKING,DISCING, Q
2. ALL PLANT MATERIALS SHALL BE GUARANTEED TO BE IN HEALTHY CONDITION FOR(1) GRADES CONFORM TO THESE PLANS. COMPACTING, DRYING,WETTING,REMOVAL OF RAINWATER AND REMOVAL OF ALL Z
YEAR AFTER FINAL ACCEPTANCE OF ALL PLANT MATERIAL BY OWNER. PREVIOUSLY PLACED MATERIAL RENDERED UNSUITABLE DUE TO WEATHER CONDITIONS OR
N 2. REMOVE ANY TEMPORARY BLOCKAGES OR MODIFICATIONS TO CONTROL CONSTRUCTION OPERATIONS, FINAL GRADING AND SEALING AND ALL NECESSARY AND
LL
E STRUCTURES REQUIRED FOR EROSION CONTROL AND VERIFY STRUCTURES INCIDENTAL ITEMS AS DETAILED OR REQUIRED TO COMPLETE THE COMPACTED LINER. O
3. ALL CONSTRUCTION MATERIALS AND METHODS OF CONSTRUCTION SHALL CONFORM CONFORM TO DETAILS.
WITH CITY OF CHARLOTTE AND MECKLENBURG COUNTY STANDARDS. CLASS 1 RIP RAP BERM
a SOIL LINER FILL MATERIALS ARE POTENTIALLY ON-SITE.ON-SITE SOILS THAT MEET THE
CL 3. PROVIDE WHATEVER TEMPORARY SEEDING IS NEEDED TO STABILIZE SLOPES. FOLLOWING REQUIREMENTS SHALL BE CLASSIFIED AS SOIL LINER FILL MATERIAL AND FOR PROP.CLEANOUT MARKER O
CD 4. IF BARE ROOT SPECIMENS ARE NOT TO BE USED WITHIN 4 DAYS,THEY SHOULD BE j O
z USE IN CONSTRUCTION OF THE COMPACTED SOIL LINER: 2"PVC PIPE TOP OF BERM-643.00
� PLANTED IN SUITABLE BEDS WITH THE ASSUMPTION THAT IT WILL BE A WHILE 4. SPREAD TOP SOIL AMENDED WITH ORGANIC FERTILIZER TO A DEPTH OF 2"OVER -------------- --- O --_---_V -
z BEFORE THEY CAN BE USED,AND THEY SHOULD BE PROVIDED WITH CONDITIONS PERMANENT POOL 642.50 _
a ENTIRE LITTORAL SHELF AND TILL INTO THE TOP 6"OF THE LITTORAL SHELF. 1. LIQUID LIMIT,PLASTICITY INDEX,AND PERCENT PASSING THE NO.200 SIEVE WILL BE PROP.CLEANOUT - -_ -.- -
a MAKING IT POSSIBLE FOR THEM TO SURVIVE AND GROW AS OPTIMALLY AS POSSIBLE. CONTRACTOR SHALL BREAK UP AND TILL ALL CLODS GREATER THAN 3"IN LARGEST CONSIDERED FOR PROPER CLASSIFICATION.THE SOIL LINER MATERIAL SHALL HAVE A ELEVATION RiP-RAP SHALL CD
N1A1N_PQOL= TEND T BOTTOM
DIMENSION AND INTEGRATE WITH SOIL. ANY ROCKS,GRAVEL,AND DEBRIS LARGER PLASTICITY INDEX GREATER THAN 20 OR AS SUBSEQUENTLY SPECIFIED BASED ON FOREBG(Y__ _ o o EX OO
5. CONTAINER PLANTS WILL NEED TO BE WATERED REGULARLY(SEVERAL TIMES DAILY �f-MAIN POND BAY
U THAN 1"IN LARGEST DIMENSION SHALL BE REMOVED FROM LITTORAL SHELF AND LABORATORY TESTING,AND HAVE A SOIL PERMEABILITY OF 1 E-5 CM/SEC OR SLOWER ____ 639.00 -1--
z_
WHEN WEATHER IS HOT). DISPOSED OF PRIOR TO INSTALLING PLANTINGS PER THE LANDSCAPE SCHEDULE. AS DETERMINED BY SOIL PERMEABILITY(ASTM D5084). }9_
M o 0 0 635.00
6 6. PIN ALL SUBMERGED/FLOATING PLANT MATERIAL SECURELY TO THE BOTTOM OF S. RECOMPACT LITTORAL SHELF SOIL USING HAND TAMPS TO PROVIDE A UNIFORM AND 2. SOIL LINER FILL MATERIALS SHALL BE REASONABLY FREE OF GYPSUM,FERROUS, = Z LU
3 POND WITH 12"BENT WIRE PINS. - - -
a GENTLY COMPACTED SURFACE SUITABLE FOR PLANTING. AND/OR CALCAREOUS CONCRETIONS AND NODULES OR OTHER DELETERIOUS - - -
7. CUT BACK TALL AND EASILY BROKEN LEAVES AND STEMS AT THE TIME OF
SUBSTANCES.SOIL LINER MATERIAL SHALL BE RAKED OR SIEVED BY THE EARTHWORK _ _ F _
� 6. LANDSCAPE STORM WATER WETLAND PER PLANT SCHEDULE LISTED ON THIS SHEET. CONTRACTOR,IF NECESSARY,TO REMOVE ALL AGGREGATE GREATER THAN 1 INCH IN _ J
TRANSPLANTING.
a DO NOT INSTALL PLANTINGS WHERE INFLOWS FROM STORM PIPES WILL DISLODGE DIAMETER.NO MORE THAN 5 PERCENT OF THE SOIL LINER FILL MATERIAL SHOULD BE - - -
a OR DAMAGE PLANTS.ANCHOR PLANTINGS TO SHELF USING SOD STAPLES OR RETAINED IN THE NO.4 SIEVE.
a 8. NEWLY RECEIVED NURSERY STOCK AND DISTURBED TRANSPLANTS SHOULD NOT BE
g COMPARABLE METHOD OR DEVICE. U)
m EXPOSED TO DIRECT SUN ANY MORE THAN NECESSARY UNTIL THEY ARE PLACED IN 3. ALL CLAY CLODS WILL BE BROKEN DOWN WITH TILLERS AND/OR DISCS TO PROVIDE A FOREBAY BERM SECTION APPROVED STRUCTURAL FILL
THEIR PERMANENT POSITIONS. r O
�2 7. APPLY FERTILIZER PER SPECIFICATIONS. HOMOGENEOUS CLAY SOIL(PRIOR TO COMPACTION)THAT IS FREE OF CLAY CLODS
9. INSERT DRY FERTILIZER TABLETS OR SPIKES NEAR THE PLANTS AT THE TIME OF GREATER THAN 2 INCHES IN DIAMETER. C
N 8. PROVIDE TEMPORARY IRRIGATION FOR WET POND PLANTINGS FOR A PERIOD OF NO G
i TRANSPLANTING. CONSTRUCTION: �I
LESS THAN 30 DAYS OR UNTIL ESTABLISHMENT.IF INSTALLATION OCCURS DURING
°' SUMMER MONTHS ADDITIONAL IRRIGATION BEYOND 30 DAYS WILL BE NECESSARY TO W W v
10. FENCE ENTIRE PLANTING AREA WITH 36"TALL PLASTIC FENCING WITH 1.5"X2" 1. CONSTRUCTION METHODS,SAMPLING AND TESTING WILL BE RECOMMENDED BY THE 0 U U
OPENINGS. PLASTIC SHALL BE UV STABLE.COLOR SHALL BE BLACK.INSTALL WITH ESTABLISH PLANTINGS. QI
o STEEL POSTS SPACED AT 10'O.C.MAX.PIN THE BOTTOM LAYER OF THE FABRIC TO GEOTECHNICAL ENGINEER.TYPICAL TESTS TO BE INCLUDED WILL BE MOISTURE �I W SEE LITTORAL SHELF z
M 9. PLANT PRE-EMERGENT PLANTS ONLY AFTER LAST FROST IN APRIL AND BEFORE CONTENT,IN-PLACE DENSITY,ATTERBERG LIMITS AND PERMEABILITY TESTING. PLANTING SCHEDULE
N THE GROUND WITH 10-12"PINS.FENCING TO REMAIN IN PLACE FOR A PERIOD OF ONE AUGUST 31ST.
YEAR POST INSTALLATION OF PLANT MATERIAL. J
a 2. PRIOR TO SOIL LINER PLACEMENT,THE PREPARED SUBGRADE SHALL BE PROOFROLLED TOP OF BERM Q
10. INSTALL MEASURES NECESSARY TO PREVENT DESTRUCTION OF VEGETATION BY WITH A LOADED DUMP TRUCK(MIN.20 TONS)OR SIMILAR RUBBER TIRED PNEUMATIC 3 LV
It 11. STAKE PLANTING ZONES PRIOR TO INSTALLATION AND VERIFY AREAS ON PLAN. VEHICLE,A MINIMUM OF TWO PASSES IN EACH DIRECTION.
i WILDLIFE SUCH AS GEESE AND DEER.MEASURES MAY INCLUDE,BUT ARE NOT
in LIMITED TO:ORANGE CONSTRUCTION FENCING,ALLIGATOR DECOYS,INSTALLATION
00 12. PLANTS ARE TO BE INSTALLED IN A RANDOM ARRANGEMENT WITHIN THEIR GROUPS OF HUMANE DETERRENT DEVICES SUCH AS GOOSE GUARDIAN OR AWAY WITH GEESE _-III-III- Q
E ZONES.INDIVIDUAL SPECIES MAY BE PLANTED TOGETHER IN GROUPS OF 3 TO 5. 3. LOOSE SOIL LINER FILL LIFT THICKNESS, PRIOR TO COMPACTION,SHALL BE A MAXIMUM
UNIT OF 6 INCHES.THINNER LIFTS ARE PERMISSIBLE TO ACHIEVE DESIGN GRADE AND/OR 42. NWL I,;I ■
PLANTS MAY ALSO BE PLANTED INDIVIDUALLY. �__•__-___-_-_____ ____-_-_-___- III-III-
SOIL LINER PROPERTY SPECIFICATIONS. I - •?� ., I=I I=- I I �
°0 13. PLANT QUANTITIES ARE TO BE VERIFIED BY CONTRACTOR PRIOR TO INSTALLATION. 11• PROVIDE AS-BUILTS OF BASIN.AS-BUILTS SHALL BE DONE PRIOR TO THE RELEASE OF -III III=III=III-III-I SHALLOW LAND ZONE:
m THE CERTIFICATE OF OCCUPANCY. 4. EQUIPMENT OR TRUCK TRAFFIC SHALL NOT BE PERMITTED DURING THE PERIOD ------ _ I'
a PLANTS SHALL NOT BE COMPLETELY SUBMERGED WHEN PLANTED. BETWEEN SCARIFYING AND COMPACTION OF A LIFT UNLESS APPROVED BY THE BOT.OF POND EL.:635.001 I-III-III-III-III-I I II I II I I I II I II I II III- INUNDATED) H:0'(PERIODICALLY
PROJECT INFORMATION
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ENGINEER. 'I =1 1=1 1=1 I-III-III-I 1=
E 14. WOODY VEGETATION SHALL NOT BE PLANTED ON THE EMBANKMENT IMPOUNDING I- i PROJECT MANAGER: MRR
WATER. Ei
5. SOIL LINER FILL SHALL NOT BE PLACED OR COMPACTED DURING SUSTAINED PERIODS -1 I II I II I II I II I II II I III i iI 1-
DESIGNED BY: ENM
ti WITH AIR TEMPERATURE BELOW 32 DEGREES F.IF THE SOIL LINER FILL FREEZES OR
a ICES THE FILL SECTION SHALL BE RE-SCARIFIED AND RE-COMPACTED. DRAWN BY: ENM
co
N
6. THE COMPACTED SOIL LINER SHALL BE CONSTRUCTED TO THE MINIMUM THICKNESS NOT TO SCALE PROJECT NUMBER: 23-01377
SPECIFIED BY THE PROJECT PLANS. ORIGINAL DATE: 0612512024
CL 7. AFTER COMPLETION OF A SEGMENT OF COMPACTED SOIL LINER,BUT BEFORE WET POND # 1 SHEET:
co N INSTALLATION OF THE TOPSOIL PROTECTIVE LAYER,THE SURFACE OF THE SOIL LINER
SHALL BE SURVEYED BY THE CONTRACTOR TO ENSURE THE SPECIFIED THICKNESS OF COMPACTED SOIL LINER. LITTORAL SHELF AND BERM DETAIL C3.6
3