HomeMy WebLinkAboutSW6231106_Plansheet - SCM Detail_20240228 (3) . .
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50-YR STORM 187.09 DAM 187.50 0BEFORE YOU DIG,
3 10-YR STORM 186.23 3 5,883 S.F. \ I / 0 0
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1 -YR STORM 184.73 0 193.�90� \ \ I
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- PERMANENT POOL 183.00 �`' I I• NORTH CA OLINA Z
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/ ONE CALL ENTER
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6: 1 VEGETATED SHELF 5,8's3 SF /
2 2 FOREBAY 2 TOP 183.00 1 A .
1 1 11 PA0 1 BOTTOM 182.00 CDEXIT 17 7.5 0 30 i RJ_P RAP
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OREBAY SEDIMENT MAIN POND SEDIMENT PROTEC-T•ON \ Z
FOREBAY STORAGE ELEVATION STORAGE ELEVATION \ LLI
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ENTRANCE 177.00 178.00 176.00 9 883 \ \ \ Y
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BOTTOM POND 175.00 . 14
A o'xso' ° X W w
WET DETENTION POND PROFILE - 5.0oy- - �. C � WCn
NOT TO SCALE J Z oco
8CIA C�
000
2'x3' DROP INLET . 119313 ��, // \ J
WITH TRASH RACK o'xso' �. / z 0
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TOP 186. 00 / \ W
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000 S.F. I o 02 \moo o
0. 11 A c. v I o �0, \ BLN=C-1874
2. 25 PVC ORIFICE
9 D 192.8J I �, •pro \ 02 \ � "1-
INV IN . 183. 00
24 RCP (SEE DETAIL) ti � . r
INV. OUT 182. 80 000 SF
0. 11 A c.
D I�192Z53 I, I \
0 X60
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B0TTOM We III _ N \ Q.,
TOP 00
OF BOX ti 5 R �� N� 2.ao .00 O
182. 00 I , 126 S.F. ' ` 0 .
5 0. 1 q c. I \ Rl I
PAD 192.2
C M Al' OUTLET PROTEC ON O
� 30'X60' , - I CL � B 18 DEEP
I WlD TH = 6
4" PVC CAP WITH _ I LEOOTHB 92 A
SCREW TYPE PLUG kZ 4 T q
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TOP ELEV. 186.00 \ 9 q 24"RCP� i ws FES ® � A
!AQ
STANDPIPE SHALL 6,050 SF 1' R Q
0. 14 Ac.
BE CONNECTED PAD,1192;67 / "s • /
1 ` 30>50 50
%�
TO THE BOX a A118 79 1 181. CL A SS B RIP RAP 0
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1 S TAR T WID TH = 6
N / END WID TH = 17
SCH 40 PVC NORMAL POOL = �� / APE
/ LENGTH - 14 ' Q V
a INV. ELEV. 183.00 � 3 � � Q - � O
6" MIN. 5,9�5 S.F j j / I P DEP TH - 18
0. 14 A c.
BOTTOM ELEV. 182.50 30X 0
SCALE: 1 30'
PVC CAP W 2.25" HOLE \ °° = 1
/ x \ 2
DRILLED IN CAP. O� 0 30 60 75 90 115 120
� 5,000 S.F j 0
PAD19 .5 ,
Conversion Procedure O
CONC/�ETEE/I�E/��ENCYSP/LL6YAY O
Sediment Basin to Wet Detention Pond NOT TO SCALE
NOTE: NOTE: 1•• � ��
1 . After the site is completely stabilized, contact Stocks Engineering @ CONTRACTOR TO COMPACT BOTTOM OF POND TO A PORTABLE PUMP SHALL BE USED FOR PUMP 1/8° RADIUS
252-459-8196 for verification of completion and stabilization. ENSURE INFILTRATION IS LESS THAN 0.01 IN./HR. DOWN AND MAINTENANCE.
2. Contact DEQ for a pproval to remove '
t.
all temporary erosion control measures.
3. Upon approval from NC DEQ, begin the conversion of the wet 5 5' W4
pond from a temporary sediment trap to a permanent BMP as follows. NOTE: EXPANSION JOINT
OP 6'�
4. If standing water is in the basin, contractor shall pump the water out VEGETATED SHELF MUST HAVE 6 IN OF TOPSOIL POND EDGE DETAIL
VEGETATED SHELF LANDSCAPE PLAN AS THE TOP LAYER OF MATERIAL OF ��
discharging through a silt bag. ,SOP
5. Remove the skimmer which is connected to the riser and convert to
VEGETATED SHELF = 2,166 S.F. �� o �o CAR
the permenent orifice as shown below in detail. J. . ���� � �ti� s/o
6. Bringthe side slopes surrounding the and and vegetated shelf to the STAGE /STORAGE TABLE
p g p g ALL PLANTS SHALL BE 3 CONTAINER PLANTS, ��o o�� = SEAL
proposed grade. THERE SHALL BE A MINIMUM OF 3 PLANT it ° �'�� �ti. a moo, 6'- = 19843
AND A MINIMUM OF 50 PLANTS PER STAGE ELEVATION CONTOUR INCREMENTAL TOTAL 1 A
7. Contractor shall verifyand depth and muck out sediment to the SPECIES, III FNciNE�`�' -V,
p p 200 SF OF VEGETATED SHELF. AREA (SF) STORAGE (CF) STORAGE (CF) III E�
design depth of the pond. -i �cHAE� S``�,
0 183.00 22,088 0 0 a °' W
8. Excavated material must be disposed of in an approved off-site location. BELOW PERMANENT POOL III a �Q �3�
9. Care must be taken to prevent an sedimentation/re-sedimentation IIIIIIII11
/ /
p y 184.00 �
24 060
Botanical Name Common Name QTY. 1 .00 23 065 23 065 � I �
during this process, as sediment deposits in the bottom of the pond II I III II IIIIIIII I wErPONo
Iris vir inica Blue flag iris 181 III
may affect the depth. If any sedimentation occurs during this process, g g l III II PLAN
Contractor shall remove sediment immediately. Helianthus augustifolius Swamp Sunflower 181 2.00 185.00 26,088 25,065 48,129
-I III ' ' ls
10. Contact Stocks Engineering @ 252-459-8196 to inspect excavated pond Peltandra virginica Arrow arum 181 -Ill ll 111 111 REVISIONS
3/7/23 3IS Plat Plan
before continuing construction. 3.00 186.00 28,173 27,121 75,250 III 7/6/23 Permiting Set
11 . Upon approval of Stocks Engineering, continue constructing pond per details. POND SIDE SLOPES NOTES: 9/11/23 Resubmittal
Establish appropriate permanent vegetation around pond as soon as possible. 4.00 187.00 30,315 29,235 104,485 1' CONCRETE SECT/ON TO BE 6" THICK, 4,000 PS/ @ 28 DAYS, W1 6"X6" 10/11/23 HRW Resubmittal
Vegetate w/Centipede Seed @ a rate of ' ' ' 6GA WELDED WIRE FABRIC. 11/1/23 HRW Resubmittal
12. Upon completion of pond construction, remove sediment from silt fence 2. 18" OF CLASS B RIP RAP OVER GEOTEXT/LE FABRIC FOR THE FULL 1/24/24 HRW Resubmittal
and dispose of at an approved off-site location. Plant vegetated shelf 60 lbs./Ac. 4.50 187.50 34,009 16,071 120,556 WIDTH OF WEIR FROM THE EDGE OF CONCRETE TO THE TOE OF SLOPE.
and seed and mulch side slopes. J. REFERENCE THE SCM DETAIL SHEET FOR WEIR WIDTH, DEPTH, AND
ASSOCIATED ELEVA TIONS. FILE N0. 2022-063
13. Contact Stocks Engineering @ 252-459-8196 to inspect completed pond 4. THICKEN ALL EDGES AND EXPANSION JOINT "THICKNESS +27. MIN/MUM HORZ. SCALE: 1�=50'
before placing pond in service. EDGE THICKNESS OF 8" k
VERT. SCALE: NONE
D- 19
MANY ARE THE PLANS IN A PERSONS HEART, BUT IT IS THE LORDS PURPOSE THAT PREVAILS. PROVERBS 19:21