20140209 Ver 1_8 Wet Pond 1_20211130

,I
2.4
,
\
JUNCTION B
MN RIM=34
TOP BOX=
INV. IN=33
INV. IN=33.
INV. OUT=
111 LJ Its
OXIMATE ARE
UIRING UNDE'
LACEMENT
O M PACTS D S ��
STO RN WAT
IMP ACCE
MAINTENA►
EASEMEN
CB
#9
NAL POOL
.=333:46
3, I 73 SF)
WETLANDS
(TYFICALF
5" FES (G'L)
V. 329.20
CLASS B RIP -RAP
PAD
GENCY
1- .. S LO-P - ERO
344 TO 34 I
TW=334.0
BW= 334.5
TW=336.0
`BW=335.0
TW=338.0
BW=337.0
TW=339.5
BW=339.0
RETAINING
WALL (I '±)
VEGETATIVE
SHELF (TYP)
RIP -RAP
SPILLWAY
FOREBAY
VrerA
TRASH RACK
100-YEAR FLOOD ELEV.
= 336.66
1 0-YEAR STORM STORAGE V
TOP OF RISER = 336.50 -
WATER QUALITY STORAGE V
6" WEIR ELEV. = 334.88 =
NORMAL POOL ELEV. = 333.46 0
VALVE
WRENCH W/
BRACKET
drIAMPaarrafre: "
6" DRAIN
NOTES:
I . RISER SHALL BE 3'x3' (INTERIOR) PRECAST STRUCTURE.
2. POND BOTTOM ELEVATION IS 329.0.
3. A CLAYEY SOIL LINER SHALL BE CONSTRUCTED ON THE POND
BOTTOM TO SUSTAIN A PERMANENT POOL LEVEL. THE LINER MAY
CONSIST OF IN -SITU OR ON -SITE SOILS.
I' SEDIMENT
ACCUMULATION
AREA
1 2'
•
5'x5'x2'f �+
DEEP
CONC.
FOOTING
5' WIDE
TOP OF DAM = 338.00
EMERGENCY SPILLWAY
-TOP SHELF=333.96
BOTTOM SHELF=332.96
1 .5" DIAM. DRAIN
HOLE (DRAWDOWN
ORIFICE)
3'x3'
PRECAST
RISER
INV. =
329.48
5" BARREL WITH
POND
DAM
-RINGS
4'x4'x I .5' CONCRETE
ANTI -SEEP COLLAR
DETAIL - WET POND
N.T.5.
ELEV. = 336.45
PRIMARY SPILLWAY ELEV.
= 336.5
329.20
RIP -RAP
APRON
PEC-MAT OR
EQUIVALENT TURF
REINFORCEMENT
GROUND COVER
TO CONSIST OF
SOD
BOTTOM WIDTH = 5'
L TOP OF
DAM=338.00
LTOP OF EMERGENCY
SPILLWAY=336.45
EMERGENCY SPILLWAY DETAIL
N.T.5.
NOTE:
RIP -RAP SHALL EXTEND TO TE EDGE OF THE GEOTEXTILE LINER.
24"
NOTES:
I . FABRICATE TRASH RACK BY
WELDING #4 REBAR SPACED 8"
ON CENTER.
2. BOLT BOTTOM OF TRASH
RACK TO TOP OF 36"x36" RISER
SUCH THAT IT MAY BE REMOVED
FOR ACCESS.
MIrmah.
36'
36"
DETAIL - TRASH RACK
MINIMUM
DEPTH= 12"
18" DEEP
RIP -RAP
D5o= 12" \
BOTTOM WIDTH = 3'
WITH GEOTEXTILE LINER
EXISTING
GROUND
EMERGENCY SPILLWAY DITCH DETAIL
N.T.S.
NOTES:
I . ALL MATERIALS AND METHODS OF CONSTRUCTION SHALL BE IN ACCORDANCE WITH TOWN OF APEX
STANDARDS AND SPECIFICATIONS.
2. BOUNDARY TAKEN FROM A DIGITAL FILE PROVIDED BY BARRY SCOTT SURVEY COMPANY.
3. TOPOGRAPHIC INFORMATION TAKEN FROM WAKE COUNTY GIS FILES.
4. THIS SITE HAS BEEN REVIEWED FOR WETLANDS AND STREAM BUFFERS BY ENVIRONMENTAL SERVICES
INC. AND THE DELINEATED ENVIRONMENTAL FEATURES HAVE BEEN SHOWN.
5. PER FEMA MAP #3720072 1 OOJ DATED 02 MAY 2006, NO 100-YEAR FLOODPLAIN TRAVERSES THE
PROPERTY.
6. CONTRACTOR SHALL HAVE NORTH CAROLINA ONE CALL (I-800-632-4949) LOCATE ALL EXISTING
UTILITIES PRIOR TO BEGINNING CONSTRUCTION.
7. THIS SITE 15 LOCATED WITHIN THE PRIMARY WATERSHED PROTECTION OVERLAY DISTRICT.
8. THE WET POND SHALL BE LOCATED WITHIN A DRAINAGE EASEMENT WITH ACCESS TO A PUBLIC R1W.
9. THIS SCM WA5 CERTIFIED ON I I/06/19 AND 05/07/20 BUT NOT ACCEPTED BY ThE TOWN OF APEX
BECAUSE THE MADISON HOA OBJECTED TO PROVIDING A LETTER ACCEPTING MAINTENANCE OF
THE CONSTRUCTED EMBANKMENT SLOPES.
POND REHABILITATION NOTES:
1. THE EXISTING INTERIOR POND SLOPES BELOW THE TOP OF DAM ELEVATION SHALL BE GRADED TO
3: I OR FLATTER.
2. THE EXISTING INTERIOR POND SLOPES ABOVE THE TOP OF DAM ELEVATION AND EXISTING
EXTERIOR DAM DOWNSLOPE SHALL BE GRADED TO A 2: I SLOPE FOR FLATTER.
3. ALL GRADING SHALL BE DONE TO MINIMIZE IMPACT TO THE EXISTING VEGETATIVE SHELF.
INSTALLATION OF SILT FENCE ALONG THE TOP OF SHELF SHOULD BE CONSIDERED IF THE GRADED
SLOPES CANNOT BE ADEQUATELY STABILIZED IMMEDIATELY FOLLOWING CONSTRUCTION.
4. CONTRACTOR SHALL CONFIRM THAT THE GRADED SLOPES ARE ADEQUATELY COMPACTED.
TREE
PROTECTION
FENCE (TYF)
0
5
09/08/2 I
10
GRAPHIC SCALE
20
FOf appll mtiO
.,o1nri try (e(rt i11 1/4
Ge a rid installe ie n at Corners
4" Przr€vs't/// PVC cr
O;§E4t M,erp'30' 0,r,
Note:
Al c1:rv! (d 94 c 4rann' when e;ta ond( on on requko, tamp
drekstrsda3l 401 nr *07wfdd 9r1 gone end ant rec00.mo.,o 8tw
€sab4c 190 (} i4; .. ("981 4 nt aced,= ct,nrrottm aMIIIVAS Gfc/k cia3n
ey04&1R1.
Dpical Reinforced Wall Section
NOTES:
. RETAINING WALLS MUST BE A MEDIUM OR DARK BROWN OR RUST COLOR.
2. RETAINING WALL DETAIL REPRESENTS THE WALL TYPE TO BE USED AT THIS 5CM.
03/09/21 REVISION:
THE PURPOSE OF THIS REVISION IS TO APPROVE THE GRADING AND RETAINING WALLS NECESSARY
TO PROVIDE 3:1 INTERIOR SLOPES AND 2: I EXTERIOR SLOPES FOR THE SCM. ANY LANDSCAPE
PLANTINGS IMPACTED BY GRADING SHALL BE REPLACED.
09/08/21 REVISION:
POND REHABILITATION NOTES
10/25/21 REVISION:
I . GEOTECHNOLOGIES, INC. COMPLETED A FIELD INVESTIGATION OF THE DAM FILL AND
ENCOUNTERED TOPSOIL MATERIAL THAT REQUIRES REMOVAL AND REPLACEMENT AS OUTLINED
IN THEIR 10/2 1/21 REPORT AND SHOWN HEREON.
2. REPLACEMENT SOILS SHALL BE CLAY, SILT OR SILTY TO CLAYEY SAND COMPACTED TO AT LEAST
95% OF STANDARD PROCTOR MAXIMUM DRY DENSITY.
3. IT IS RECOMMENDED THAT GEOTECHNOLOGIES, INC. BE RETAINED TO OBSERVE THE REMEDIAL
WORK, PROVIDE DENSITY TESTING AND PROVIDE DIRECTION FOR NECESSARY REPAIRS.
4. RETAINING WALLS SHALL BE SEGMENTED BLOCK TINTED MEDIUM OR DARK BROWN OR RUST IN
COLOR. ALL PERMITTING WILL BE HANDLED AS A SEPARATE SUBMTTAL.
5. FENCING SHALL BE INSTALLED AT THE TOP OF RETAINING WALLS IF REQUIRED BY THE BUILDING
CODE.
6. JOINT SEPARATION OF THE FES OUTLET PIPE BARREL FROM THE RISER SHALL BE SEALED WITH
HYDRAULIC CEMENT.
THE SIGNATURES AFFIXED BELOW CERTIFY THAT THIS SHEET HAS BEEN REVIEWED AND APPROVED SOLELY
PER THE CERTIFICATIONS SIGNED ON THE COVER SHEET OF THESE CONSTRUCTION PLANS.
N/A
Mallon 12/01/2021 11:18:00 AM
PW - TRANSPORTATION
N/A
sewens 11/30/2021 2:39:30 PM
Approved
DATE WR - STORMWATER
BUILDING INSPECTIONS DATE
N/A
miller 19/09/9(191 9.111 99 PM
WR - UTILITY ENGINEERING
N/A
rsmith 11/30/2021 4:20:41 PM
ELECTRIC
N/A
Approved
abunce 12/06/2021 1'.34'.18 PM
PLANNING
DATE
N/A
svanevery 12/01/2021 706:22AM
DATE
DATE PLANNING - TRANSPORTATION DATE
N/A
DATE FIRE
WR-54E
khuegerich 11/30/2021 11:48:59 AM
N/A
areincke 11/30/2021 2:05:48 PM
DATE
DATE PARKS, RECREATION *CULTURAL RES. DATE
C U
0
C
0
Construction Management
Civil Engineering
221 N. SALEM ST.
SUITE 001
PO BOX 1062
APEX, NC 27502
Office: 919-387-1174
Registration: P-0151
www jonescnossen.c om
z
0
CONSTRUCTION DRAWINGS
WAKE COUNTY, NORTH CAROLINA
TOWN OF APEX
SCALE
I"=10'
z
0
CL
Q
0
DRAWN
5MJ
DATE
FEBRUARY 4, 20 14
1REVISION
103/13/14
04/08/14
04/20/ 1 5
11/06/19
08/2 1 /20
I I/17/20
I st TRC COMMENTS
2nd TRC COMMENTS
POND GRADING
AS -BUILT
GRADING REVISION
TRC COMMENTS
SKEET
5
PROJECT
I302