HomeMy WebLinkAboutDetention Pond Analysis335
(XISTING CONTOUR (MAJOR)
�,XISTING
CONTOUR MINOR
PROPERTY
BOUNDARY
DRAINAGE
AREA BOUNDARY
VEGETATION
LINE
1.01I�
D
AINAGE AREA NUMBER &
51.26
AC
REAGE
310
EXISTING CONTOUR (MAJOR)
EXISTING CONTOUR (MINOR)
EXISTING CONTOUR
PROPERTY BOUNDARY
Ur
- Sr-)
Sr
�- PROPOSED STORM SEWER
DRAINAGE AREA BOUNDARY
TIME OF CONCENTRATION
CALCULATION FLOW PATH
-
- -
PROPERTY LINE
401
DRAINAGE AREA NUMBER &
32.71
ACREAGE
" -
FLOW DIRECTION
/J P�l
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1. FILL MATERIAL USED TO ACF,IEVE GRADE IN AREAS TO RECEIVE PAVEMENT, AND WITHIN THfF
- - `
/ STREET RIGHOF-WAY SHALL, BE COMPACTED TO AT LEAST 95% OF THE MAXIMUM DRY
DENSITY AS DETERMINED BY THE TXDOT PROCTOR TEST, (TEX113E), AT A MOISTURE CONTENT
( ` I FROM 2% BLOW TO 2% 6vE THE OPTIMUM MOISTURE CONTENT. OTHER AREAS TO RECEIVE�
r
r
FILL MATERIAL SHALL BE OMPACTED TO AT LEAST 95% OF THE MAXIMUM DRY DEDITY AS
1 \1 /j DETERMINED' BY THE STADARD PROCTOR TEST, ASTM D-698, AT A MOISTURE CONTENT FROM
`� - - t
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1. FILL MATERIAL USED TO ACF,IEVE GRADE IN AREAS TO RECEIVE PAVEMENT, AND WITHIN THfF
- - `
/ STREET RIGHOF-WAY SHALL, BE COMPACTED TO AT LEAST 95% OF THE MAXIMUM DRY
DENSITY AS DETERMINED BY THE TXDOT PROCTOR TEST, (TEX113E), AT A MOISTURE CONTENT
( ` I FROM 2% BLOW TO 2% 6vE THE OPTIMUM MOISTURE CONTENT. OTHER AREAS TO RECEIVE�
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/
1. FILL MATERIAL USED TO ACF,IEVE GRADE IN AREAS TO RECEIVE PAVEMENT, AND WITHIN THfF
- - `
/ STREET RIGHOF-WAY SHALL, BE COMPACTED TO AT LEAST 95% OF THE MAXIMUM DRY
DENSITY AS DETERMINED BY THE TXDOT PROCTOR TEST, (TEX113E), AT A MOISTURE CONTENT
( ` I FROM 2% BLOW TO 2% 6vE THE OPTIMUM MOISTURE CONTENT. OTHER AREAS TO RECEIVE�
FILL MATERIAL SHALL BE OMPACTED TO AT LEAST 95% OF THE MAXIMUM DRY DEDITY AS
1 \1 /j DETERMINED' BY THE STADARD PROCTOR TEST, ASTM D-698, AT A MOISTURE CONTENT FROM
`� - - t
NOTE: / / 2% TO 4% ABOVE THE 6PTIMAL MOISTURE
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ALL ARW-DlftRBED BY CONSTRUCTION SR9 i HAVE A MINIMUM OF !4" OF TOPSOIL, 2. THE SUBGRADE BENEATH THE CONCRETE SIDEWALI(S SHALL BE COMPACTED AND /` }
\ i i E
L—
SAWNAGED FROM THE STRIPPING OF THE SITE, PLACED ON TOP OF T}I'E DISTURBED AREAS "PROOF "PROOF i
O
INOLUDING STREET RIGHT-OF-WAYS, EASMENT AREAS, THE ENTIRE AREA OF DETENTION PONDS. -ROLLED". ANY WEAK OR SOFT AREAS IDENTIFIED BY THE -ROLLING" SHALL BE - - )
REMOVED AND REPLA*D. /
i
SNl
D FILL AREAS.
O
3. ROCK RIPRAP,,,,SSHALL BE 6" TO 12" PIECES PLACED TO A MINIMUM DEPTH OF 12", UNLESS
OTHERWISE NOTED. /
4. HANDICAP RAMP SLOPES SHALL NOT EXCEED 1V:12H.
REFER TO EXHIBIT D
^'
5. THE TOPOGRAPHY SHOWN IS FROM AERIAL TOPOGRAPHY PREPARED FOR THE OWNER OF
FOR CONTINUATION
W
.THE PROPERTY IN 1997 AND FROM AS -BUILT SURVEY DATA.
i
OF GRADING PLAN
� LL MQ
w0�
�4.5 8" --- -� --I I--
-- HvPE -SEE PLAN 12„ _ 12„ Q �
FOR SIZE -
ELEV. 299.55 ELEV. 299.55 —
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lo
+� I �� 12” /� CD
\ �� CONCRETE WALL _ 06
W
i W -- I ii & #4 BARS C� W
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r T❑ IF
EXISTING 36 OUTLET ELEV. 29 05 ELEv. 29s.o
5 Q Q
" " ❑ 10.7 2 "U" BARS PIPES FOR POND 2A
10_6" i2 12 � .' 2 PER. BLOCK. � Q '
-II
W
ELEVATION "
s ❑ CONCRETE F00 ING 36HDPE
PIPE � i1
#4 BARS 12" O.C.E.W.
4000 PSI CONCRETE
WALLS, BOTTOM SLAB & TOE — — — — — —
12"
POND 2A
ELEVATION PLAN PLAN
OUTLET PIPE 6"
CAP ENDS OF
TYPICAL CONCRETE HEADWALL DISSIPATOR BLOCK LOCATION 36" PIPE WITH MODIFICATION -
ATH
ODIFICATIONWITH WINGS CONCRETE WALL
FOR HEADWALLS
NTS
POND 2B CONCRETE HEADWALL NTS
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8 9 3` 14 16 ' 1 MTO I{Il11 12 15 17 l9 10 8i, �A, ON 30
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TOP OF-BERt1i 11 1 {
- --299
s 6 EL53
POND 2B OUEV: 302 - 29
`Q 0 r TRUTCTURE42* HDPE OUTLE PIPE 3LOV - - - -_- -
/I 20' 60" a 05X TOP OF ----296-- - - -8
UPSTREAM = 2ELEV._- - - _- - --295-P.U.E. S 8 r5p
FL DOWNSTREAM =2940 R SF
RIP
-- _---_ -- ---
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---- _299_I - ERLINE W-5
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cn
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a 034 297 I'sensnNc 3sOUTLET PIPES �
-17
9(REFER To EXHIBIT C FOR ADD FILL MATERIAL TO � E V(K 3 MODIFICATION DETAILS) } (f)L ISE THE EXISTING
�( 10,-X 295- ND 1 BERM
- 296 --
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y N®.8 0
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ELEV. 304.0 3.33 ACRES
DETENTIONDETENTION
zT T -------- ---- oPOND 2B BLOCK8 Hill 2A 21 I v
ST ST ST 45 U)
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H PVMT 50 ROW, --
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TOP OF BERM
ELEV. 3. - - - - ----- ------
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305 U\BLO K 13
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30 //60MM9 AREA -` _..-- i _-_ D 10'
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+ REFER10 EXHIBITU.
TUPLN OFOR NW
OF G A TING
42 HDPEFOOTPRINT-
50 25 0PIPE 50
11L
OF FOOTING 06
WSCALE IN FEET
TRASH RACK W
m �°
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A I #4 ® 12" O.C.E.W. 5.5' " .GRATE I ( #4 SMOOTH NOTE: �y
4:5'--1 /-TYPICAL IN ALL 12 I OVER I ,� "
WALLS I BARS 9 O.C.E.W _ o V
ELEV. 302.0 - - ELEV. 302.0 ( SALVAGED FROM THE STRIPPING OF THE SITE PLACED ON TOP OF THE DISTURBED EAS `
1
- - - -I- INCLUDING STREET RIGHT-OF-WAYS, EASMENT AREAS. THE ENTIRE AREA OF DETENTI N PONDS z
6" (TYPICAL) F 3.5' X 1' OPENING ELEV. E .0 ' ' - - - - - - i LEGEND
_
I AND FILL AREAS.
301 O
1 5.5
L LEV. 301 .0 I GRADING CONSTRUCTION NOTES:
1' X 1' OPENING I~ B B I 1
"L" BAR FL ELEV. 298.5I I 1. FILL MATERIAL USED TO ACHIEVE GRADE IN AREAS TO RECEIVE
SEE DETAIL) - ELEV. 299.5 I - / i I PAVEMENT, AND WITHIN THE STREET RIGHT-OF-WAY SHALL BE
- - -- - -}-' S ) 1 COMPACTED TO AT LEAST 95% OF THE MAXIMUM DRY DENSITY AS .
g ga ( DETERMINED BY THE TXDOT PROCTOR TEST. (TEX113E), AT A
MOISTURE CONTENT FROM 2X BELOW TO 2% ABOVE THE OPTIMUM
- ELEV. 298.5 I I 1 MOISTURE
IAL
ALL BE COMNTEDTHER AATRLEAST 95X OF THE MAXIMUM REAS TO RECEIVE FILL ER DRY
in DENSITY AS DETERMINED BY THE STANDARD PROCTOR TEST, ASTM
12" O.C.E. W. 3.5 D-698, AT A MOISTURE CONTENT FROM 2% TO 4X .ABOVE THE
4
1' I '� I I I OPTIMAL MOISTURE
i
2. THE SUBGRADE BENEATH THE CONCRETE SIDEWALKS SHALL BE
SECTION B - B FRONT VIEW COMPACTED AND "PROOF -ROLLED". ANY WEAK OR SOFT AREAS
IDENTIFIED BY THE "PROOF-ROWNG" SHALL BE REMOVED AND
NTS N.T.S. 6" 12" I I REPLACED.
1 i 3. ROCK RIPRAP SHALL BE 6" TO 12" PIECES PLACED TO A
( ( MINIMUM DEPTH OF 12", UNLESS OTHERWISE NOTED.
BAR DETAIL #4 BARS 24" 12" 12" ( 1 4. HANDICAP. RAMP SLOPES SHALL NOT EXCEED 1 V:12H.
NTS
BARS REQUIRED 0 POND 2B OUTLET STRUCTURE-
L_ J 5. THE TOPOGRAPHY SHOWN IS FROM AERIAL TOPOGRAPHY
12" O.C. SPACING18" PREPARED FOR THE OWNER OF THE PROPERTY IN 1997.
PLAN VIEW CRATE COVER DETAIL
NTS
--7
EXISTING CONTOUR (MAJOR)
- -
- -308--
-
EXISTING CONTOUR (MINOR)
L ROW LINE
BOUNDARY PH 2 & 3
- -
PROPERTY LINE
FLOW DIRECTION
- -
- -
-
- - PROPOSED STORM SEWER
PROPOSED CONTOURS
�I
PHASE LINE
II
CONCRETE CHANNEL LINING
M
CONCRETE RIPRAP
ROCK RIPRAP
307.2.5
'i
SPOT ELEVATION