20140209 Ver 1_7A Dry Pond 1_20211130

STORMWATER BM P
ACCESS $ MAINTENANCE
EASEMENT
I
EM BAN KM E OJT
REPAIR AREA TO
RECEIVE EABIRIC $
RIP -RAP TRETM ENT
t1,0
\-\tt" pC
MAX. WATER LEVEL DURING
100-YEAR STORM = 326.5
SHOULDER GRADE = 328.67 (±)
TRASH RACK
TOP OF RISER = 326.29
I' WEIR SLOT = 325.66
INLET# I
3'x3' RISER
_ 1=I
�TT�
8" PVC
INVERT = 322.63
1=
III lllffi 111 _
T-I11-11
18" RCP OUTLET
BARREL @ 5.09%
DAY PO\D DETAIL
RIP- RAP
PROTECTION
EXISTING
FENCE
24"
NOTES:
I . FABRICATE TRASH RACK BY
WELDING #4 REBAR SPACED 8"
ON CENTER.
2. BOLT BOTTOM OF TRASH
RACK TO TOP OF 36"x3G" RISER
SUCH THAT IT MAY BE REMOVED
FOR ACCESS.
3G"
DETAIL - TRASH RACK
INLET# 16
TOP RISER = 326.29
I ' WEIR SLOT = 325.66
INV. IN = 322.GG
INV. OUT = 322.63
1 5" 1-ES (G'L)
INV.=325.3
I O' Lx 3' Wx 1 8"D
CLASS B KIP-KAP
(Dso= 1 3")
TOP =329.I8
INV. IN = 322.28
INV. OUT = 322.0
II
II
II
I
1
MINIMUM
DEPTH= 1 2"
24" DEEP
RIP —RAP
D5o=24" 2.\ \//'�"
BOTTOM WIDTH = 3'
WITH GEOTEXTILE LINER
NOTE:
RIP —RAP SHALL EXTEND TO THE EDGE OF THE GEOTEXTILE LINER.
RIP -RAP DITCH DETAIL
N.T.S.
;•:>/r
EXISTING
GROUND
12" DEEP
RIP —RAP
(CLASS B)
GEOTEXTILE LINER
PINNED AT TOP AND
BOTTOM OF SLOPE
NOTES:
I . SLOPE SURFACE TO BE REVIEWED BY GEOTECHNICAL ENGINEER FOR POSSIBLE
IMPROVEMENT PRIOR TO PLACEMENT OF FABRIC AND RIP —RAP.
2. RIP —RAP SHALL EXTEND TO THE EDGE OF THE GEOTEXTILE LINER.
FABRIC $ RIP -RAP DETAIL
N.T.S.
NOTES:
REMOVE EX. 1 5" EES $ EXTEND
EX. 1 5" RCP 4' AT EX. SLOPE
CONSTRUCT NEW YI
TOP GRATE=329.0
(MLD VERI -Y)
INV. IN=325.98
INV. OUT 325.78
PROVIDE 3: I SLOPE, AS
MUCI-1 AS PRACTICAL, FOK
ACCESS TO DRY POND
BOTTOM FOK MAINTENANCE
I . ALL MATERIALS AND METHODS OF CONSTRUCTION SHALL BE IN ACCORDANCE WITH TOWN
OF APEX STANDARDS AND SPECIFICATIONS.
2. BOUNDARY INFORMATION FROM A DIGITAL FILE BY BARRY SCOTT SURVEY COMPANY.
3. TOPOGRAPHIC INFORMATION TAKEN FROM WAKE COUNTY GIS DATA.
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 200G, NO 100—YEAR FLOODPLAIN EXISTS
ON THIS SITE.
G. CONTRACTOR SHALL HAVE NORTH CAROLINA ONE CALL (I—800—G32-4949) LOCATE ALL
EXISTING UTILITIES PRIOR TO BEGINNING CONSTRUCTION.
7. THIS SITE IS LOCATED WITHIN THE PRIMARY WATERSHED PROTECTION OVERLAY DISTRICT.
8. ALL PERMANENT SLOPES SHALL BE GRADED TO 3: I OR FLATTER ON THE INSIDE SLOPE OF THE
DRY POND. ALL PERMANENT SLOPES GRADED FROM BETWEEN 2: I AND 3: I SHALL BE
STABILIZED IN GENERAL ACCORDANCE WITH THE FABRIC AND RIP —RAP DETAIL.
9. THE BOTTOM OF THE DRY POND SHALL BE SODDED.
10. THE DRY DETENTION POND SHALL BE LOCATED WITHIN A DRAINAGE EASEMENT WITH
ACCESS TO A PUBLIC RNV.
I I . THIS SCM WAS CERTIFIED ON I I /05/ 1 9 AND 05/07/20 BUT NOT
ACCEPTED BY THE TOWN OF AEX BECAUSE THE MADISON 110A OBJECTED
TO PROVIDING A LETTER ACCEPTING MAINTENANCE OF THE
CONSTRUCTED EMBANKMENT SLOPES.
0
5
10
20
07/06/2 1
03/09/21 REVISION:
THE PURPOSE OF THIS REVISION IS TO APPROVE THE GRADING AND RETAINING WALLS NECESSARY
TO PROVIDE 3: I INTERIOR SLOPES FOR THE SCM. ANY LANDSCAPE PLANTINGS IMPACTED BY
GRADING SHALL BE REPLACED.
09/08/21 REVISION:
1. THE PURPOSE OF THIS REVISION 15 TO APPROVE THE STORM DRAINAGE ADDITION AND
ARMORING OF IMPROVED 2: 1 SLOPES WITH RIP —RAP. ANY LANDSCAPE PLANTINGS IMPACTED BY
THIS WORK SHALL BE REPLACED.
2. THE EXISTING TOPO AND DRY POND INFORMATION WAS TAKEN FROM AN AS —BUILT SURVEY.
10/25/21 REVISION:
I . GEOTECHNOLOGIES, INC. COMPLETED A FIELD INVESTIGATION OF THE DRY POND FILL SOILS AND
ENCOUNTERED SOFT MATERIAL THAT REQUIRES REMOVAL AND REPLACEMENT AS OUTLINED IN
THEIR 10/21/21 REPORT AND SHOWN HEREON.
2. IT I5 RECOMMENDED THAT GEOTECHNOLOGIES, INC. BE RETAINED TO OBSERVE THE REMEDIAL
WORK AND PROVIDE DIRECTION FOR NECESSARY REPAIRS.
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
Melton 12/01/2021 11:1747 AM
PW — TRANSPORTATION
N/A
sewens 11/30/2021 2:41:11 PM
BUILDING INSPECTIOJ � A
smiller 12/02/2021 2.01.14 PM
WR — UTILITY ENGINEERING
N/A
rsmith 11/30/2021 4:20:06 PM
ELECTRIC
N/A
Approved
DATE WR — STORMWATER DATE
a"a�,ce Approved
PM
DATE PLANNING
N/A
svanevery 12/0112021 ]:05:36 AM
DATE
DATE PLANNING — TRANSPORTATION DATE
N/A
khuegerich 11/30/2021 11:48:40 AM
DATE FIRE
N/A
areincke 11/30/2021 2:05:40 PM
DATE
U
J
J
a_
z
w
w
z
z
w
0)
73
Construction Management
0)
c
.L
w
w
C
.;
V
221 N. SALEM ST.
SUITE 001
PO BOX 1062
APEX, NC 27502
Office: 919-387-1174
Registration: P-0151
www.jonescnossen.com
_.��gSg�FC47C�&1r1.�
AU
eoF�nssioAG
SEAL
1
D. CV-?,,,IAe
6g n?d6:51Sliti
SCALE
I"=10'
0
z
0
0
DETENTION
L.�
0
DRAWN
PDC
DATE
APRIL 2 I , 20 15
REVISION
08/2 I /20
GRADING REVISION
11/17/20
TRC COMMENTS
03/09/2 1 TRC COMMENTS
09/08/2 I
STORM DRAINAGE
GRADING REVISION
SHEET
7A
GRAPHIC SCALE
WR — 5 E
DATE PARKS, RECREATION $ CULTURAL RES. DATE
PROJECT
I302