1390 BEGONIA ST - SURVEY OPTIONAL POST POSITIONS
POST (OPTIONS: 2"X4° OR 2/g2" MIN. _j 20°t
DIA. WOOD; STEEL 1.33 LBS./Fi MIN. < PRINCIPLE POST
POSITION (CONTED
6' MAX. FILTER W 20' TOWARD FLOW)
FABRIC �
FILTER FABRIC
w
� I I GRADE SILT FLOW
-�00v
FND. CONC MONT MES Li ELEVATION
(5.05 NO 1.D.)
ELEV. (4.46) SECTION
. TYPE III SILT FENCE
6't D I T C H
0.4'. (4.05) O N.T.S.
r-
(TYPICAL) EROSION CONTROL NOTES:
.. X5.05) 12 WOOD POST
01. ALL AREAS DISTURBED AND LEFT FOR MORE THAN 30 '.DAYS MUST BE SEEDED AND
3' HIGH MULCHED UNLESS OTHERWISE NOTED. CONTRACTOR MUST MAINTAIN NEWLY GRADED
AREAS AND REPAIR AREAS WHERE SETTLING AND EROSION HAVE OCCURRED.
p 2. CONTRACTOR MUST PROVIDE ALL MATERIALS AND TAKE,WHATEVER MEANS NECESSARY
MANHOLE TO PREVENT THE EROSION OF AND DEPOSIT OF SEDIMENT ON ADJACENT AND
�6.2� . DOWNSTREAM PROPERTIES. CONTRACTOR MUST IMPLEMENT AND PROVIDE SUITABLE
(5ELEV._ � � EROSION CONTROL MEASURES (I.E. SEDIMENTATION BAkPIERS, HAYBALES,
SILTATION CURTAINS, TEMPORARY DETENTION DISTILLING' BASINS, ETC.) TO
coo � � ENSURE THE CONTROL OF STORMWATER RUNOFF. THI$ PLAN DESCRIBES THE MINIMUM
c3i AMOUNT I ----- ITIES. IN THE
EVENT O� PROTECTION
CN
UN ORSEENEROSION, OTHREQUIRED
RMEA URES OF EROSION Y PROPOSED NCONTROL (EROSION
r WEST 14th STREET
BENCHMARK O -'" ------ CONTROL ACTMTIES SUCH AS THOSE LISTED ABOVE) WILL BE REQUIRED.
(50.0 FOOT RIGHT-OF-WA WOOD POWER p 3. TURBIDITY BARRIERS MUST BE INSTALLED AT ALL LOCATIONS WHERE THE
J POLE I POSSIBILITY OF TRANSFERRING SUSPENDED SOLIDS INTO THE RECEIVING WATERBODY
4.75 (NOT � PK NAIL IN POLE EXISTS DUE TO THE PROPOSED WORK. TURBIDITY BARRIERS MUST REMAIN IN PLACE
C J PAVED w AT ALL LOCATIONS UNTIL CONSTRUCTION IS COMPLETED AND SOILS ARE STABILIZED
ELEVATION 7.83 0 AND VEGETATION HAS BEEN ESTABLISHED. THEREAFTER THE PERMITTEE WILL BE
6.05 BARRIERS.
REMOVAL OF THE BA ERS
( RESPONSIBLE FOR THE RE 0 L E
{ 6" WILD OLIVE
} 6HICKORY 4. PERMANENT VEGETATIVE COVER MUST BE ESTABLISHED ON ALL EXPOSED LAND
•
.$. SURFACES WITHIN ONE YEAR FROM THE THECONSTRUCTI
0N IS COMPLETE.
........:............: � 7" OAK o 7" OAK
FD. ./2 ' 1,�20N:�;:?.::;.:2;?;:;�;:�:t 7" OAK 5. CONTRACTOR SHALL PLACE SILT FENCE ALONG PROPERTY LINE AROUND THE ENTIRE
(LB 231 �,:;;;t;: 102 . 00 ' 6" OAK � -� SITE PRIOR TO COMMENCEMENT OF CONSTRUCTION.
...:...:. .......................
(5.8) `:_:��:?�: :�: :•`:::?. :: 18" I E )' Z (6.38
0
`. :�:�:�:i?` . ��'` 11" OAK
0 Y .. . .....................:...,:.::;:•;:•.::;. :: .....;:..:. .,;;..:.....;.:;;;;;�:.;,;..•:.::; ;.:::.:•;;;;:;:;;;;;•;;;�•;:;;:::; •>;,;:•>�;;::�;;: 14� � 6.66
:::::... ::•:.:�. .:::::::::::::.�::.: :,:Y::;:;>.•:;:<;>.., .;.; :... .••::.•.••:::•:.:•:�.. ::•:.:::: 7..:::::-::::::::•:::::::::::::•::::•.:::>::::<•::. REQUIRED STORMWATER STORAGE VOLUME (PER CITY OF ATLANTIC BEACH
� �N PRE-DEVELOPMENT RUNOFF VOLUME:
s
0')
;.::: ....: : TWIN 23" • m _ � DRAINAGE AREA - 7,143.8 S.F.
o �� �� - I w THE ENTIRE SITE DRAINS FROM BEGONIA STREET TO THE WEST OR REAR
..::•:::. ::::.�:::::::.. •::•:::::.:�::.�:. : HICKORY
C3
O� - -- - - - " �.?� .��.�:'>.> .�.''�'�' ��TM'�������.�� - � � THE ENTIRE SITE IS UNDEVELOPED WOODED
LJ
`���`��� '��`�`:��:�:�:�? : > E � RATIONAL RUNOFF COEFFICIENT "C" - 0.4
N - 14 HICKORY
� W Q ENTIRE PRE-DEVELOPMENT SITE IS PERVIOUS
14 PALM
L � A CH 9.3 INCHES
Y
U, 25 YR. 2
4 HR. RAINFALL DEPTH FOR ATLANTIC BEA
r- o
W
I
U � Q _ j.� w � � RUNOFF VOLUME _ (0.40) X (7,143.8 S.F.) X (9.3 INCHES/12 INCHES/FOOT) = 2,214.6 C.F.
o PROPOSED 1 STORE` RESIDENCE o 0
1 0 ( 700 Li
m .0 �j Fes' . O I te,
� = POST-DEVELOPMENT RUNOFF VOLUME:
-- I\ CDDRAINAGE AREA - 7.143.8 S .,.-.-.,_
(4.9) 4.0 - - _- - _ - I - _ �.� _ � � '` __ Q' � PERMOt?S`--AR�"/�`(ROOF;`TRTb£WAY & SIDEWALKS) - 2,985.3 S.F.
�
PERVIOUS AREA - 7,143.8 S.F. - 2,985.E S.F. = 4,158.5 S.F.
~
17" PAL � � � � � O
9" MAGNO ' �-- �- O WEIGHTED RATIONAL RUNOFF COEFFICIENT "C' _ (,2) X (4,158.5 S.F.) + (.9) X (2,985.3 S.F.)/7,143.* S.F.
Q � I � � WEIGHTED RATIONAL RUNOFF COEFFICIENT "C' = 0.49
J �p E� W �
� ) �1 0 8" MA NOLIA � � �' � 0 25 YR. - 24 HR. RAINFALL DEPTH FOR ATLANTIC BEACH = 9.3 INCHES
o �op��u� cn � HICKOR g z � � Lo RUNOFF VOLUME _ (0.49) X (7,143.8 S.F.) X (9.3 INCHES/12 INCHES/FOOT) = 2,726.8 C.F.
Ll
m �o�� o � � 88I REQUIRED STORAGE VOLUME: 2,726.8 C.F. - 2,214.6 C.F. = 512 C.F.
w � f
l
� 0 0 p� �9
� . � STORMWATER STORAGE VOLUME:
� 2" PALM ELEVATION AREA (S.F.)
22" LIVE OAK c91 5.0 727 S.F.
cwnuj 6» WILDx"14.0 6.0 �> � I (6.47)
4.0 364 S.F.
OLIVE 5.0 g" PALM
90.19' 10 MAGNOLIA
�4'9� •5, ,� 02 . 00 , � (g'g) I TOTAL STORMWATER STORAGE VOLUME = 727 S.F. +
1
FD. 1/2" IRON 9 �, (6.64) PROPOSED STORMWATER MANAGEMENT SYSTEM MEET THE MINIMUM REQUIREMENTS OF THE CITY OF ATLANTIC BEACH
(LB 5231) � FD. 1/2" IRON
(RLS 3129)
INSTALL SILT FENCE (SEE DETAI )
LEGEND
PROPOSED STORMWATER STORAGE AREA
DRAINAGE DIVIDE (TYR.) 6 4� EXISTING SPOT ELEVATIONS
DRAINAGE AREA - 7) '143. 8 S. F. NORTH
5.0 FINAL GRADING CONTOURS
ED 10" MAGNOLIA EXISTING TREES
N
EXISTING TREES TO BE REMOVED 10 0 10
--s.
F. SALT FENCE SCALE 1"= 10'
POST- DEVELOPMENT DRAINAGE PLAN
Q PROJECT Na
DRAWING:CONSTRUCTIQN PLANS ` A �IAANCHOR ENGINEERINGR . J. B. OSTDEV PLAN
SITE DRAINAGE IMPROVEMENTS Q 14 DRAWN BY: FIELD BOOK NO; PAGE(5)
CHOR OF FLORIDA, INC. FOR tp R . J. B. _
PROPOSED RESIDENCE 0 �` SCALE:.NIC - 1
GINEERING 1 = 1 0
INC.OF FLORIDA, �. CIVIL ENGINEERINGAT D PROFESSI NA (NEER:
BEGONIA STREET & WEST 14 th STREET Q RONALD J. ONGIOVANNI DATE:
4000-11 ST. JOHNS AVENUE JACKSONV►LLE, FLOR/DA82205 �aoa�sae-�a.�s ATLANTIC BEACH , FLORIDA NO DATE REVISION BY FLAu�E. 514355 4/27/2015