PW Approved Revised Documentation - 5th ReviewPUBLIC WORKS_
{ yf'A*PPROVED
{ } DENIED
{ } NOT APPLICABL EPT
�-/6�3 REVISED
$ITE PLAN Continued
I I
__ _A_ ___ l
--------------------�TATCH LINE
All Pelma (PI Cover lSCIT 6hrube (MPJ
Lot(.34M) 1T,5o9 1W
- Sabal Palmetto - Send Cord - Maki Poole= / Ee�.ly
grave erpua "Y�, H— 5.858
Qty 22• 15' CT - Blue Lllytwf / Equly Qty 15+ l8°oc I Ga33
l
Qty 20• 30"00 3 Gal Dri—,Courtyard 1,W7 07 j
v_t ___".. ,,.._ :.�... I Drive 404 02
J
480 03
Wal"531 ".. 306.Ms 02
15
5'r S'3 ;—(21) 525 03 6
TOTAL 8.930 51
ei• _
II_ _ _ �•--• I v I ,tom, Y i{ 1 { Post Consir ".. I 8,880 51
-`j� i r,."•....r fes- "' y' ..
SurvesS rior to Demo N.T.B.
nt can NOT be taller thd�n , f Gsrade 1
[: RR
Story / 4 Gar Garage Rmldanee
F.F. = W -O . NA,' p
3
vg. Grade In Buildable Arm= 15.11' NAV
overall Nelght from Avg. Grade • 31' I I l q5 yrl
Lot • .4 Ac - 11509 SF I Slleelt.'S
aMing Bede
MP
P
j
Csrondfathw.d from
Prevloua Nome
•I
crne'asecalce sFj x
1 � I, I
�,� Lot (.34AcJ 17,509 100
111
m��w
`I
House 4,516 26
`�11,
Z Dr. & W.1. 1,826 10
Oceanfront Brick 2,2W 13
r �� � I
I
Poo11509b1 340 021
I
I
TOTAL B,BBB 51.
,
it
00 0 91
SurvesS rior to Demo N.T.B.
nt can NOT be taller thd�n , f Gsrade 1
[: RR
Story / 4 Gar Garage Rmldanee
F.F. = W -O . NA,' p
3
vg. Grade In Buildable Arm= 15.11' NAV
overall Nelght from Avg. Grade • 31' I I l q5 yrl
Lot • .4 Ac - 11509 SF I Slleelt.'S
aMing Bede
MP
P
j
U
t
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00 0 91
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Brlting Sierae � laming Bade
SITE PLAN
APPR0VED
fS�Y9
`►►►tllllrl�����
Comp. By: Reynold Peterson, P.E. `
` Date: 4/25/2023 $'��`� L�
'9
C� .•� G E N SF••
Digitall c}'
r�r�ssvr Reynold byReyrml: No. 84559
Public Works DepartmentD. Peters
City of Atlantic Beach Date: 2R23425
Peterson 12:24:41:4_0% STATE OF
Permit No: i % •: !V
Address: 831 Beach Ave • ; O R"0 C?����`
Reuuired Storaue Volume ,tZ2NA1 ►x%�`�`�
Criteria:
Section 24-66 of the City of Atlantic Beach's Zoning, Subdivsion, and Land Development Regulations requires
that stormwater runoff from impervious areas be stored onsite. Volume to be retained is as follows:
V = CAR/ I2 which is the Modified Rational Method for estimating stormwater runoff
Where: V = Volume of Runoff to be stored (cubic feet)
C = Runoff Coefficient, 0.92, the difference between impervious area (C=1.0)
and undeveloped conditions (C=0.08).
A = Impervious Area (square feet)
R= 25 -yr / 24 -hr rainfall depth (9.3 inches for Atlantic Beach)
Onsite Storage Volume Required for Impervious Area:
Lot Area = 17,509 ft2
Impervious Area (A) = 8,857 ft2 = 50.6%
V = 0.92 x 8,857.0 x 9.3 1
V = 6,315 ft'
Provided Storage:
Area 1
Area
Storage
(ftl
{ft2i
(ft)
BOTTOM
TOB
Area 2 -LEFT REAR
Area
Storage
(ft)
(ft)
(ft)
416
1,798
BOTTOM
2,461
TOB
Area 3 - RIGHT REAR
Area
Storage
(ft)
(ft)
(0 .-
0
BOTTOM
n
0
TOB
Inground Storage: = A*dlpf
Total Storage Area at TOB (A) =
Depth to ESHWT from BOTTOM (d) =
Pore Factor (pf) =
Inground Storage Provided =
Required Treatment Volume =
Supplied Treatment Volume =
Sideslope: '14:1
245•.., ft2
5.0 ft, default is 2.0 ft, verify onsite ESHWT
0.4 default is 0.4
4922.0 ft'
6,315 ft'
6,720 ft'
THIS ITEM HAS BEEN DIGITALLY
SIGNED BY: REYNOLD D.
PETERSON
PE NO 84559
ON THE DATE ADJACENT TO THE
SEAL. PRINTED COPIES OF THIS
DOCUMENT ARE NOT CONSIDERED
SIGNED AND SEALED AND THE
SIGNATURE MUST BE VERIFIED ON
ELECTRONIC COPIES_
12
PUBLIC W KS
(✓tHPPROV
{ } DENIED
{ ) NOT APPLIC BLE TO DEPT
Retention 831 Beach Ave_CALCS 4/25/2023