HomeMy WebLinkAboutWPO201400064 Plan - Revision 2020-04-08WW & ASSOCIATES DESIGN STAGE STORAGE DATA
Planned Pond Storage Volume WW & Associates
No
Elevation (ft)
Area (sq. ft)
Ave Area (sq. ft)
Volume (cu. Ft)
Cumulative (cu. Ft)
1
471.99
0.00
0.00
0.00
0.00
2
472.00
7179.00
3589.50
35.89
35.89
3
474.00
8643.00
7911.00
15822.00
15857.90
4
476.00
10208.00
9425.50
18851.00
34708.90
5
478.00
11873.00
11040.50
22081.00
56789.90
6
480.00
15735.00
13804.00
27608.00
84397.90
7
482.00
18423.00
17079.00
34158.00
118555.90
WW & ASSOCIATES DESIGN CROSS SECTION WITH AS -BUILT CHANGES
NOTE:
ALL RCP
PIPE
CONNECTIONS
FOR
MISER
STRUCTURE
ND O
TFALL
PIPE
'HALL
BE R
BBER
GASKET
AND
WATER
TIGH
.
c
ul
�
r
490
!f
2
485
SETTLED
TOP
OF EMBANKMENT
/
EL. =
432.00
WIDTH
1
,7'
79,96
-
1
-YR WSE=4
9.38
480
,�
4
1!
2
YR W
E=47
.14
N RO
GH GRADE
LANE
--
IN
TALL
6"x8"x
11 GALVANIZED PLATES
_
BjTWEEN
PRECAST
RISER SECTIONS
RISEN JOINT)
r
P
OVIDE
HALF
SECTION DFBP15 HOOD
475
-8b 477.33'
ES
3" P
RFDF2
TED 0
IFIOE PIPt- 2.5" ORIFICE TO BE
- 472.00'
CONCRETE
CRADLE
SEE
DRAWING
C
-2-7
47{7
Fl
L BAS
SEC
ION WITH
CUTO
F TRENCH
NCf
TO
ATCH
w
4
PIPE
INVERTS.
1
0-84
F
J`
CL III
ASTM
-361
'
IN
TALL
I)0T
i.
o. 57
465
w
_ rAS
I_TD
IPE
00
- U
DER RISER
ECTIO
cS
�+;
R5
RCP
9
u;
o D
PTH=12
c)
+
�..
LOPE
24
+
CD
-�
.�
I
II
oLd
I
II
Z
>
Z
Gr3
Cn
0 tI)
10
-00
10+50
1 1
+00
11
.50
IF
THIS DRAWING IS A REDUCTION
GRAPHIC
SCALE MUST BE USED
Table 12: Water Quality Compliance table
INSTALLED WITH TRASH RACK
WAITER QUALITY COMPLIANCE -
N
project area
I 61.1
(should b roughly Equal to limits of disturbance)
area captured
48-8
percent capture
�,
:
80"11
(should be 90% or better)
f, factor
t .(
(1.0. or 0.9 for situ in the development areas where
Existing
impelviious
comer is greater than 20%
it�,.,
7@
17
tTJ
L
S:,
3
' '5
_R
-6
QL
m
""
a��
facility narrp
�,
� f a6llty type
r€ iTurls
SWIM No- 1
20-5
0.20
10.:3:3
341,{�
33156.0
Ex. Detenlion Basin
35%
:3:3259-0
1.00
Perr-nanent
Pool for
Aesthetic
SWIM No. 2
8911
0.20
0.0'9
01/6
-
Retention Basin
r, 'A
VA
fed A
( 11ality
SwM No. 8
13.7
0.20
1137
'4.3%
5702.0
Biof ilter 1
50%
15247..0
1 2.8
Crest Bev - 480.03' j
7 12 x �" Orifice E ev 477.33'
12"
2.50" Orifice Modified
EW-1
12% 12" x 12" 1. 5'
Trash Rack See
Detail This Sheet 1
Bottom Elev = 372.03'
0.5' Inv=472.03'
6" OF
Gravel
Embed 6"
in Concrete
Pond
Embankment
CM P Anti -Vortex
Device
48" R C P
Standpipe
12"
1 99
nv-472.03'
A
$HAP€ 1'D K
BEVELED WITH MORTAR I FLU
x
d 4=
DCI Nii a
13
REVEL
INVERT
L
NOTES; I. IIHII MAY BE REDUCED LtgT15 "k" REACHES A MINM1hlUI4+ OF 4" WHERE
ENDWALL WOULD PR1]TRk.IDE ABOVE SHOULD" ERE.
H# NO CASE SHALL TOP OF ENDWALL PROJECT ABOVE FILL SLOPE,
WCH SLOPE. OR SHrxkDER.
7, THIS ITEM MAY BE PRECAST OR CAST IN PLACE.
3. ALL CAST IN PLACE CONCRETE TO BE CLASS A3. FOR PRECAST SEE
SHEET 101A32.
4• THrS VANDARD TO BE USED WITH STRAJGHr CROSSINGS AND ALL
SKEM10'TO 45'i.
5, HEADWALL To BE BEVELED IN ALL AREAS "CEPT WWr.RE R GOWLIGT
WITH INVERT.
EMI'-1
ENDWALL FOR CIRCULAR PIPE
DIAMETER OF PIPE CLJLVEIRT
12"
151,
IS
2r' OP. 24"
27" M 30
3" OR 36
c
r-41.
,,-�„
r_ ,I
7.-211
2'_&,I
rl
r-p"
17-3°
1'-$"
2'-C1"
7'-4"
3'-4
r
0'-81,
Cr,8"
0`_O"
01"@II
fr-9"
O'-#`
H
7.31,
2,11',
31_2-
3,, 1
V.S.
4i-tr'
L
4'-0"
51-CY,
6'-01,
6'-C..
10, Owl
12-0"
4
4` /<"
Cy_ly I,
01-2-.
D'-21/s"
0`31/4"
0'-3 '4.,
b
tl`-Y
01.11/4"
W-f/2.
D'-2"
13-2!/2"
D-3"
CUDC YARDS OF CC04CRETl
CONC. PIPE
(1-241
0.492
0.697
1 1,Z79
2x67
2.947
C:.M. Psi
0-257
0.S21
0.7,y9
1 1-2,99
2-198
3_FO
IEW-1,1A
r
JL
6 BEVEL EDGE IS REOIHRED ON THE HEADWALL AT TK IFiLET END OF THE
CULVERT rWHERE THE FLOW ENTERS THE CVLVFRT),
7. HEADWALL AT THE OUTLET END OF THE CULVERT MAY BE EITHER -SQU RE
EDGE OR BEVEL EDGE
8. ON�� HEETOP OF f E HEKWALL SHAI_L BE CONSTRUCTED PARALLEL TOERTtiE
t,RAE)E OF THE RQAQ.
9 Fj" OtAAIIFER MAY 13E PROVUED DH ALL EDGES AT WANUFAiCTR'S OP71DN.
EW-111
ENDWALL FOR ELLIPTICAL PIPE
SIZE Of ELLIl PIPE. (:U-VERT (SPAN a RISE)
23"04"
3O"x'r9"
3422"
St x'4•
42-47"
4:5"x2g-
49"x3.2"
53"04"
A
ill-2"
O'-9"`
n' IC '
I it
4'•1Y'
1' D-
1, D0
t-,o--
I t"„
1...r„
1'-9.'
r 10..
1,,,1,.,
I, II,
f
r
I, -rr,
W-1111
_a"
7`-5"
7'-711
2'-4-
7' 911
0
r-2
11-7"
1'-1()"'
Z-0"
2`-3"
7"-5"
F
0'-15"
0'-B`
01-V
W-W,
W-9"
9-9"
0'-9"
4'_11"
H
V-110"
3'-3`
} 7"
3 9"
4`0"
4'-2"
W-5"
4'-7"
L
5'-5"
7'-2`
B E"
9 2'
10'-2
1U'-fr
12-1"
12'-11"
S
r-IIV
F' fi"`
2'-10"
3.=2„
3-fi"
3._�11
4,_1..
,#._51,
O
D ?
11° 3'/4"
0'-31/2"
0'-i"
W-41/2
4'-4Y4'-
0'-5-
O'-51/2„
13
0,.2.,
3' 2!/?
0`2)4"
T _"
O' 3!/�"
4 3}{"
D"-4-
0'-*1/2'-
CUISIC YAK'. 4c C OKIRETE
E0 -PIPE D,503 o--8S5 i,2-M LS% 1-911 2-101 2.;12 2-1101
PECFXATMDN A CIORY DF THE ORIC34AL 55ALCD A14D �0' DRAWING IS ON FILL: IN THE CENTRAL OFFICE.
R STANDARD ENDWALL FOR PIPE CULVERT
1Q� 12" ` 36 " CIRCULAR AND 23" x 14" - 53" x 34" ELLIPTICAL PIPES
302
VIRiaWIA DEIPfRTWNT OF TRANSPORTATION
l� 3. 0,
2.5" EXTENDED DETETION
30 HOUR DRAWDOWN
Inv 472.03'
I.5 0.5'
MODIFIED EWV 1
NOT TO SCALE
Top of Dam
E ev 482, 50'
100,61'-24" RCP
@ 0.677
6" OF #3 STONE
V00T
ROAD AND BRIDGE STANE)AROS
RFVISION DATE SHEET I OF 1
04/19 101.01
/ O
/ SDMH
I�l,T H OF vj�P
c> 7
Dustin E. Greene
Lic. No.
.oYPo 55833 ��yw
E
�SSI0NAL ��
�H
TREE
TREE \
7\
\(:D TREE
\ TREi \
\ + � f O+
-TREE-- - -
\O0 TREE- TR-E E-
TREF
i R +82. yy_�� CD I I I I I �
1 I I I
I 1 I I
I
� � 1 o I
5 480.029
TO NC. STRE E
� � �82� 481.70TOP TR RACK
CL STRU(. /
61�0 \ +82.8 --
�0
�GQ
o�
\QP
Expanded
Steel Grate (Typ.)
Expanded Steel Grate Opening Detail
Not To Scale
is NOTHI
25 2.28' ' .203'
3.0 3.44' .940" .264
AS NEEDED
2J-3 LB PER FT2
EXPANDED STEEL
GRATE BASED ON
LOW FLOW OPENING
/1s^ HOLES
AS SHOWN
LD (TYP.)
-, 1/2- X 1 1/2- X 1/4-
STEEL ANGLE (TYP.)
•1 1/2" X 1/4- STEEL
STOCK WELDED TO
BASE AS SHOWN
GENERAL NOTES FOR TRASH RACK
1. STEEL TO CONFORM TO ASTM A-36.
2. ALL SURFACES OF TRASH RACK(S) MUST BE HOT DIPPED GALVANIZED AFTER FABRICATION.
3. TRASH RACK(S) TO BE FASTENED TO WALL WITH 1/2- MASONRY ANCHORS. TRASH
RACK(S) TO BE REMOVABLE.
4. TRASH RACK(S) TO BE CENTERED HORIZONTALLY OVER THE OPENING.
5. FABRICATOR MAY MODIFY COMPONENTS OF TRASH RACK FRAME TO IMPROVE
CONSTRUCTABILITY OF TRASH RACK. MODIFICATIONS MUST BE APPROVED BY
MCDPS PRIOR TO FABRICATION.
* DETAIL TAKEN FROM MONTGOMERY COUNTY,
MARYLAND WATER RESOURCES SPECIFICATIONS,
CONTRACTOR TO USE THIS TRASH RACK
OR AN I Qy, IVALENT APPROVED BY THE VSMP
Inv = 4 71 . 6'
ORIFICE TRASH RACK
NOT TO SCALE
\ +83.0 1\
� � \ #84.5
APPROVED
by the Albemarle County
Community Development Department
Date 44
File WP0201400064
Dewatering Orifice Spreadsheet
A = Flow area of orifice, ft2
d = diameter of circular orifice in, ft
h = average driving head (height from Principal Spillway to orifice divided by 2), ft
Q = volumetric flowrate needed for intended drawdown, ft3/s
S = Storage or WQV required, ft3
h = 5.33 ft
Q = 0.40 ft3/s 43072 ft3 WQV provided
S = 43072 ft3 108,000 s 30 hours
A= Q
(64.32 * h)1/2 * (0.6)
A = 0.036 ft2
d = 2* (A/3.14)AO.5
d = 0.21 ft
d = 2.57 inches
REVISIONS
DATE
MAR. 16, 2020
SCALE
111-20'
FILE NUMBER
10.0156
SHEET
1 OF 1
a�
AS BUILT CONCRETE RISER STRUCTURE DETAIL