C04 Phase 2 Erosion.pdf

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\ l/ S..CONSTRUCTION SEQUENCE PHASE 2(CONSTRUCTION) .
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............1. CONTRACTOR TO COMPLETE ROUGH GRADING PREPARE BUILDING PADS AND
�.
h�. q
\ R
INSTALLATION .
BEGIN UTILITY _ -- - •--•---- - ,.
:tom
S WILL BE / -: �' .. ... 9.q '�e#r • • ...... �. ;., \
2. FINE GRADE AND STABILIZE ALL NON -IMPERVIOUS AREAS. THESE AREA Q -.;,� •.,:�. v . _ _ _ ... = ♦ 4 \
R ANENTLY STABILIZED WHEN ALL PERMANENT CONTROL MEASURES O t/. :�� a�=='"�"'`: - Y�..' • • ' • \ ', -^♦ \
CONSIDERED PEM ..: ......... ......... ... .• VICINTYMAP
FACILITIES HAVE BEEN COMPLETED AND ARE OPERATIONAL, AND UNIFORM RESISTANT }5:40 :. `•, \
/ / .•u. t .r 'i I ' �{yZ t� d - . . . _ . . . . . . .
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PERENNIAL VEGETATION IS ESTABLISED TO THE POINT WHERE THE SURFACE SOL IS "'`r'= = o.
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1 • "'j'•`•,.M•'"a�+=' �:•o- ..•%' . . . . . . . . . •!AR -
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0 RESISTING EROSION DURING RUNOFF EVENTS. THE STANDARD FOR THIS ;.t,•.;,.> �:.- :r "
CAPABLE F O >/ ,==; : . r. 3a �, # o,S /r f�.Irf ... G fD
/ :�`•_: • ...... ..........^ .. 44
h .............. \ \ T
V COVER IS A UNIFORM COVERAGE DENSITY OF 70% ACORSS THE°
VEGETATIVE Cp C� / ,, �;.:: 8. �p �,. ... • �` \ °oUReq
�,;: !pop a,> . Es .... ...... Y �,» . ` \qc NcF _ CONTOUR
L- _ q. # R -7,90
EXIST/N C R
DISTURBED AREA. �/ C .....
/ r , ar''::w'.»• .. .... .... ? . \ FS
- ;r^. •. �•~'-`' •.'sc - - . . . . . . . . . . . . • �''`� '
SAND FILTERS AND FOREBAYS- SEE STORMWATER MANAGEMENT �:� r�. -.:... .......... . . . �► PROPOSED CONTOUR
3. CONVERT SEDIMENT BASINS TO v f
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SKIMMER AND SEDIMENT FROM THE BASIN ;-.�:.�:................
PLAN. PUMP OUT WATER AND REMOVE °% 2
Qi - '' ..... .. ..... .... »...r .::..' \
_ :. > .. ........ ...... ..................... .. ,� `� -- - - ---- PROPER �Y LINE
LAN S J i s �* „#
BOTTOMS. EXCAVATE NEXESSARY MATERIAL AND INSTALL SAND FILTERS AND FOREBAYS PER P �' �� •.�:� �; 7
�. �, fSo .... , ... _' 4: EXISTIN STRUCTURE
AYS AS NECESSARY = � .r ;'�_: �.•. ;: • . ..... ? -'..................... .
REGRADE SLOPES OF FILTERS AND FOREB E Uj� �, o,�• = \
= ......... .... . .... ... .. . J'.' ..... • ..... ....>. \
_� .q- 0`@ - .... ....... 'I� � #��^...,�, BEGIN /
A H OWNER AND OR a{t•;o-i,:�c:. �. PROPOSED STRUCTURE
4. UPON STABILZATION OF ALL EARTH DISTURBANCEACTIVITIES, THE •J>: q. #, ...... ...................
0 C y -,SILT FEN E
l.�c
OPERATOR SHALL CONTACT THE INSPECTOR FOR A FINAL INSPECTION. �' / = .... ....... .....
/ • <a ` ' 1 z�.' y . a \ - RIGHT O WA Y OR EASEMENT LINE
L TEMPORARY SEDIMENTATION " °� ..: pR w
5. UPON INSPECTION AND APPROVAL, REMOVE AL/ £.�.:� �:" :K-..: ro oA ................... .
/ �n bs ce ....... ... .\ - CENTER LINE
/ �c # ..:z...... �... co.�
AND EROSION CONTROL DEVICES. 6 }�y�.q,f•r�l ........ T ............. .
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OIL LEGEND !. _:��•• > 4Q. R ..... .... ... ........... .......... .............. J
r.�:r.°• Lr- Fo 15 HDPE S E
...... - . E STORM EWER AND IZ
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M. SPILLWAY �% /
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GROUND STABILIZATION £; c` x
RNs, . . . . . . . . . . \
U
SITE AREA
STABILIZATION
STABILIZATION TIME
DESCRIPTION
MINIMUM
MINIMUM
SEDIMENI
SEDIMENT
SWALES, DITCHES
7 DAYS
NONE
AND SLOPES.
HIGH QUALITY
SURFACE
SURFACE
STORAGE
STORAGE
CLEAN
BASIN
PRINCIPAL
DR.AREA
1 0 -YR
-
AREA SF
AREA -SF
VOLUME
VOLUME
OUT
L W
DEWATERING
DEWATERING
� OF
ALL OTHER AREAS
SPILLWAY
(AC.)
FLOW.
REQUIRED
PROVIDED
REQD.(CF)
PROVIDED
ELEV.
RATIO
MECHANISM
TIME
BAFFLESS
1
TRAPEZOIDAL
8.2
54.3
17 648
1.7,800
1.4,760.
14 920
17 0.5
2.1
SKIMMER
2 DAYS
3
SPILLWAY
ELEV 170.8
:ITSPILLWAY
RAPEZOIDAL
6.4
41.,8...
220
12 250
10 980
�
1.2,262
169.9 ELEV
169.5
32
SKIMMER
212 DAYS
3
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TOP -175.7 N � b .,�
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N INV 169.21 . K•-4 . . . . . . . . . . . \ O
\ F
t• °::-. R
4 =
�. 3.
NV 169.0 :�r :C:• F F
T
\ l/ S..CONSTRUCTION SEQUENCE PHASE 2(CONSTRUCTION) .
q
�•�\ %
� � r -• .Y..,r , . � . ....... ...... ..... ... ......... \-�,- - - \ �,..
............1. CONTRACTOR TO COMPLETE ROUGH GRADING PREPARE BUILDING PADS AND
�.
h�. q
\ R
INSTALLATION .
BEGIN UTILITY _ -- - •--•---- - ,.
:tom
S WILL BE / -: �' .. ... 9.q '�e#r • • ...... �. ;., \
2. FINE GRADE AND STABILIZE ALL NON -IMPERVIOUS AREAS. THESE AREA Q -.;,� •.,:�. v . _ _ _ ... = ♦ 4 \
R ANENTLY STABILIZED WHEN ALL PERMANENT CONTROL MEASURES O t/. :�� a�=='"�"'`: - Y�..' • • ' • \ ', -^♦ \
CONSIDERED PEM ..: ......... ......... ... .• VICINTYMAP
FACILITIES HAVE BEEN COMPLETED AND ARE OPERATIONAL, AND UNIFORM RESISTANT }5:40 :. `•, \
/ / .•u. t .r 'i I ' �{yZ t� d - . . . _ . . . . . . .
q; w• .:.w:...i •.t • .1 /.J.1Jo. s A; - •+-
PERENNIAL VEGETATION IS ESTABLISED TO THE POINT WHERE THE SURFACE SOL IS "'`r'= = o.
. r r .F
1 • "'j'•`•,.M•'"a�+=' �:•o- ..•%' . . . . . . . . . •!AR -
/ •w:r -.. .: v ` f�.•. . . . . . . . .. . . . ". ���.•• . . . . . . '\ ��w \ �M
0 RESISTING EROSION DURING RUNOFF EVENTS. THE STANDARD FOR THIS ;.t,•.;,.> �:.- :r "
CAPABLE F O >/ ,==; : . r. 3a �, # o,S /r f�.Irf ... G fD
/ :�`•_: • ...... ..........^ .. 44
h .............. \ \ T
V COVER IS A UNIFORM COVERAGE DENSITY OF 70% ACORSS THE°
VEGETATIVE Cp C� / ,, �;.:: 8. �p �,. ... • �` \ °oUReq
�,;: !pop a,> . Es .... ...... Y �,» . ` \qc NcF _ CONTOUR
L- _ q. # R -7,90
EXIST/N C R
DISTURBED AREA. �/ C .....
/ r , ar''::w'.»• .. .... .... ? . \ FS
- ;r^. •. �•~'-`' •.'sc - - . . . . . . . . . . . . • �''`� '
SAND FILTERS AND FOREBAYS- SEE STORMWATER MANAGEMENT �:� r�. -.:... .......... . . . �► PROPOSED CONTOUR
3. CONVERT SEDIMENT BASINS TO v f
�V ti\. \ a�=r: � •:. i ... ...... ..... ` \ 790
�+i I� --•f' •• f • • v • • • • • . . . • . ... . . . . . . Y +W....,... • . . . . • • �� ,yy \ -
SKIMMER AND SEDIMENT FROM THE BASIN ;-.�:.�:................
PLAN. PUMP OUT WATER AND REMOVE °% 2
Qi - '' ..... .. ..... .... »...r .::..' \
_ :. > .. ........ ...... ..................... .. ,� `� -- - - ---- PROPER �Y LINE
LAN S J i s �* „#
BOTTOMS. EXCAVATE NEXESSARY MATERIAL AND INSTALL SAND FILTERS AND FOREBAYS PER P �' �� •.�:� �; 7
�. �, fSo .... , ... _' 4: EXISTIN STRUCTURE
AYS AS NECESSARY = � .r ;'�_: �.•. ;: • . ..... ? -'..................... .
REGRADE SLOPES OF FILTERS AND FOREB E Uj� �, o,�• = \
= ......... .... . .... ... .. . J'.' ..... • ..... ....>. \
_� .q- 0`@ - .... ....... 'I� � #��^...,�, BEGIN /
A H OWNER AND OR a{t•;o-i,:�c:. �. PROPOSED STRUCTURE
4. UPON STABILZATION OF ALL EARTH DISTURBANCEACTIVITIES, THE •J>: q. #, ...... ...................
0 C y -,SILT FEN E
l.�c
OPERATOR SHALL CONTACT THE INSPECTOR FOR A FINAL INSPECTION. �' / = .... ....... .....
/ • <a ` ' 1 z�.' y . a \ - RIGHT O WA Y OR EASEMENT LINE
L TEMPORARY SEDIMENTATION " °� ..: pR w
5. UPON INSPECTION AND APPROVAL, REMOVE AL/ £.�.:� �:" :K-..: ro oA ................... .
/ �n bs ce ....... ... .\ - CENTER LINE
/ �c # ..:z...... �... co.�
AND EROSION CONTROL DEVICES. 6 }�y�.q,f•r�l ........ T ............. .
O ,;QN�• :•, r `'� _', . /• ! T . 'IP •. . . . . . . . . . . p p' i •'1`I E
�5 >.-r % ` . / ! a% . . . . . . . . . . . . . . . . .�C�. _
/ : i.; .:; t. p .. ..... .... >, o. ....... , .. f BUIL SETBACK
OIL LEGEND !. _:��•• > 4Q. R ..... .... ... ........... .......... .............. J
r.�:r.°• Lr- Fo 15 HDPE S E
...... - . E STORM EWER AND IZ
a %>' p.. ... ...... � t
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Ra RAINES SANDY. LOAM 0 2 PERCENT SLOPES � fes; .r . :r. .. f Q .. _ . .. _
/. ........
...... ` . • �,� • >: �< -X X- EXIST/N CHAIN LINK FENCE
T...........
- - - • �• .�,,,� o;s. ° c a . .. .... . ... .... ... , t
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/ - :�.o/� c.. #s' ... ... e ..... ... f;
s4 . t .. ..... .. ........ / 6 CHA/ LINK FENCE
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A'
N. ». _ - ... EXIST/N FENCE TO BE REMOVED
/ / :.,.• ..;: � :,�.f.1! I�,. �, .. - .. , ..... . ....... it '�►............ .... ....... .. ...... ..... TQ-PSOIi� . i.,..' � ,,., '
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.... ........ t) t8" Oq I' F qG
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>> • o o Q. c C7C?A .......... ............ ............ ; s ` NT
? . .-_..._ ... ?.. o .' A qo . e# _ ..... . E . UE/T UNDERGROUND ELECTRIC/PHONE
R �.. Op p. ¢ ............... .. .............. r END
4
EX 24'R / r ��� :. e#> . tp'...... .... /I!s SILT FENCE 8 SS SAN/TA Y SEWER AND S/ZE
INV -173.18 . h tr•. :�' T . Q,q :.. ........ ................... '6 .... ............ ......... ..... #
4:-�-`... / % 1`. ..... .......... / t .`/
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END '��' ....q`�.... ey{r .. . p ,o / : Fr 8 W WA TER
"mow. .� "?0 �. s.... Ra .. ...... .
SILT FENC /�� t �_ aw . •'- - ....... p t,> CSS' �,� ..... I •�^ �" I
+� / .. FA it ... j; 1 G GAS LINEAND SIZE
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S INv-167.21 / < 2 .y 2 x 816.3 EXISTING SPOT ELEVA TION
LFO.T C O F' 1J s
/ 0 . @ C@ �D
�ac . `• o f 785.5 PROPOS D SPOT ELEVA TION
. .... .... .. ; . ....... /
O ,• \ •�.•./•.� .S• . . . . . . . . . . . . fr : c�
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