20061804 Ver 23_CE-08 Wet Pond Conversion_20180619

1
/ � •gMP
/ SSM T
/ ��h 230 50
• / • �'S�° `l' 229 230-500
.0
cV
N
SCALE: 1 " = 30'
0 30 60 75 90
NVV
238..�
240 s��\
\ �w �x
JR00
2
tK
\ INV. 21.50
10'WIDE x18"
• \ DEEP CLASS B
RIP RAP CHANNEL
6' VEGE TED SHELF-, OVER MIRAFI 140N
/ t
241.85
FES N V. 230.16
'b F.
tK� /R 40 LF 36"
W�6' CSD 4S.0%
•
D. 1. #2 (2'x3')
TOP 140.80
INV. IN 239.50 ORIFICE)
INV. IN 232.00 �2,,
6DRAWDOWN)
INV. OUT 232.00
10' VEGETATED SHELF
SCALE: 1 " = 30'
0 30 60 75 90
2 FT. FREEBOARD
3 V 1 YEAR STORM 227.9
1 PERMANENT
POOL 227.0
2 2
11 1 F_
BOTTOM
POND 220.0
WET DETENTION POND PROFILE
NOT TO SCALE
:Eel: ar_i121QN I: 1114aW_1ZID-LOIG7_1a aW_1Z
ALL PLANTS SHALL BE 3" CONTAINER PLANTS.
ABOVE PERMANENT POOL
Botanical Name Common Name QTY.
Eupatoriadelphus dubius Dwarf Joe Pye Weed 36
Lobelia cardinalis Cardinal Flower 36
Lobelia siphilitica Great blue Lobelia 36
1r
/227.0 \TOPE O
1 OF SHELF
6:1
VEGETATED
SHELF
BOTTOM OF SHELF
TOP OF DAM 230.5
2'x3' DROP INLET
WITH TRASH RACK
TOP 229.65
�4
STAGE/STORAGE TABLE
1.75" PVC ORIFICE
?27.00
N/90' ELBOW
STAGE
cri
CONTOUR
AREA (SF)
INCREMENTAL
STORAGE (CF)
TOTAL
STORAGE (CF)
r-�
227.00
co
0
0
1.00
228.00
4,390
3,608
3,608
2.00
229.00
2x3) ,
4,871
D.I. #20
3.00
\TOP 229.65
6,426
INV. OUT
14,368
3.50
230.50
224.65
O
21,473
/48 LF 24"
RCP 0 6.58%
W/6' FES
X
FES19
\ INV. 21.50
10'WIDE x18"
• \ DEEP CLASS B
RIP RAP CHANNEL
6' VEGE TED SHELF-, OVER MIRAFI 140N
/ t
241.85
FES N V. 230.16
'b F.
tK� /R 40 LF 36"
W�6' CSD 4S.0%
•
D. 1. #2 (2'x3')
TOP 140.80
INV. IN 239.50 ORIFICE)
INV. IN 232.00 �2,,
6DRAWDOWN)
INV. OUT 232.00
10' VEGETATED SHELF
SCALE: 1 " = 30'
0 30 60 75 90
2 FT. FREEBOARD
3 V 1 YEAR STORM 227.9
1 PERMANENT
POOL 227.0
2 2
11 1 F_
BOTTOM
POND 220.0
WET DETENTION POND PROFILE
NOT TO SCALE
:Eel: ar_i121QN I: 1114aW_1ZID-LOIG7_1a aW_1Z
ALL PLANTS SHALL BE 3" CONTAINER PLANTS.
ABOVE PERMANENT POOL
Botanical Name Common Name QTY.
Eupatoriadelphus dubius Dwarf Joe Pye Weed 36
Lobelia cardinalis Cardinal Flower 36
Lobelia siphilitica Great blue Lobelia 36
1r
/227.0 \TOPE O
1 OF SHELF
6:1
VEGETATED
SHELF
BOTTOM OF SHELF
TOP OF DAM 230.5
2'x3' DROP INLET
WITH TRASH RACK
TOP 229.65
�4
STAGE/STORAGE TABLE
1.75" PVC ORIFICE
?27.00
N/90' ELBOW
STAGE
ELEVATION
CONTOUR
AREA (SF)
INCREMENTAL
STORAGE (CF)
TOTAL
STORAGE (CF)
0
227.00
2,826
0
0
1.00
228.00
4,390
3,608
3,608
2.00
229.00
5,351
4,871
8,479
3.00
230.00
6,426
5,889
14,368
3.50
230.50
7,783
7,105
21,473
Conversion Procedure - Sediment Basin to Wet Detention Pond
1. After the site is completely stabilized, contact Stocks Engineering ® 252-459-8196 for verification
of completion and stabilization.
2. Contact Johnston County for approval to remove
all temporary erosion control measures.
3. Upon approval from Johnston County, begin the conversion of the wet pond
from a temporary sediment trap to a permanent BMP as follows.
4. If standing water is in the basin, contractor shall pump the water out discharging through a silt
bag.
5. Bring the side slopes surrounding the pond and vegetated shelf to the proposed grade.
6. Contractor shall excavate the bottom of the pond to the depth of the proposed basin.
7. Excavated material must be disposed of in an approved off-site location.
8. Care must be taken to prevent any sedimentation/re-sedimentation during this process, as
sediment deposits in the bottom of the pond may affect the depth.
If any sedimentation occurs during this process, Contractor shall remove sediment immediately.
9. Contact Stocks Engineering ® 252-459-8196 to inspect excavated pond before continuing
construction.
10. Upon approval of Stocks Engineering, continue constructing pond per details. Establish appropriate
permanent vegetation around pond as soon as possible.
11. Upon completion of pond construction, remove sediment from silt fence and dispose of at an
approved off-site location. Plant vegetated shelf and seed and mulch side slopes.
12. Contact Stocks Engineering ® 252-459-8196 to inspect completed pond before placing pond in service.
VEGETATED SHELF LANDSCAPE PLAN
ALL PLANTS SHALL BE 3" CONTAINER PLANTS.
BELOW PERMANENT POOL
Botanical Name Common Name OTY.
Iris virginica Blue flag iris 35
Ludwigia spp. Primrose willow 35
Peltandra virginica Arrow arum 35
ABOVE PERMANENT POOL
Botanical Name Common Name OTY-
Eupatoriadelphus dubius Dwarf Joe Pye Weed 35
Lobelia cardinalis Cardinal flower 35
Lobelia siphilitica Great blue Lobelia 35
�4
2'x3' DROP INLET
WITH TRASH RACK
TOP 240.80
2" PVC ORIFICE
@ 239.50
W/90' ELBOW
6" DIP DRAWDOWN
W/MJ G.V. ON INSIDE
OF BOX © 232.00
THEREFORE, EVERYONE WHO HEARS THESE WORDS OF MINE AND PUTS THEM INTO PRACTICE IS LIKE A WISE MAN WHO BUILT HIS HOUSE ON THE ROCK. MATTHEW 7:24
STAGE/STORAGE TABLE
STAGE
ELEVATION
CONTOUR
AREA (SF)
INCREMENTAL
STORAGE (CF)
TOTAL
STORAGE (CF)
0
239.50
9,994
0
0
0.50
240.00
12,352
5,587
5,587
1.50
241.00
14,179
13,266
18,852
2.35
241.85
16,279
12,945
31,797
NOTE:
A CLAY LINER SHALL BE PROVIDED THAT ALLOWS
NO MORE THAN 0.01 IN./HR. INFILTRATION RATE.
VEGETATED SHELF TO RECEIVE 6" TOPSOIL MINIMUM.
3
1 FT. FREEBOARD - 1 YEAR STORM 240.82 1 1
3
�1
PERMANENT
V POOL 239.50
2 2 2 10:1
VEGETATED
SHELF
BOTTOM
POND 232.00
WET DETENTION POND PROFILE
NOT TO SCALE
TOP OF DAM 241.82
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6-24- 116
BMP
DETAILS
REVISIONS
6/1/18 WET POND CONVERSION
FILE NO. 2016-014
HORZ. SCALE:
1"=30'
VERT. SCALE:
NONE