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HomeMy WebLinkAboutdetention pond analysis exhibits335I EXISTING CONTOUR (MAJOR) EXISTING CONTOUR (MINOR) PROPERTY BOUNDARY DRAINAGE AREA BOUNDARY VEGETATION LINE 101 ii DRAINAGE AREA NUMBER & 51.26 ACREAGE `, "--_... _----- P.U.E. '} a I `� I _ I i _m......:_ _.a„ ._. .,.. �._.--''�,� o� '� � � �\ 10' ! � t � 1 I 10', i - t �DD j1 Iw1ATERIAL -- EXISTING DETENTION 'I a -- "� jos �. \ P.U\ . I i 'D. I \ 1 I RAISES THE } 1 POND/OUTLET :- --i- - , �" ( ►rn� ; P.U.E. a. i o7 1 NG POND t ("i 7`L C 1"-I`T I I (f'i- } STR�JCTURE - -3° - -3 ... -. 5- ! 10 11 12 �1�3 14 15 16 17 18 19 I I _ "6' / 1 f 8 9 L� �t ° _ ,._...... _ - ' 4 i' ! 0. / /I I ;BERM TO � ..- f l IW J ('p . ( � 1 i / i �,kTION 300.5 TOP O'F`>BERt� / ✓ ) t - - - - I ! i s -a -a S -s �_s ! ! ! ELEV.- = 305,2 I I I'El 31 I I d r�i - -z9s-� _ _ _` _ _ _ _ - _ _ / J f i ► !°�,°ao° _ + i+0 \ 00+6 POND 2B OuttET i / V \ /%' _ - - - _ - 297 - '---'- - b l _ _ _ - r TRUTCTURE / I LOCK f \ f -zs�- - -� - _ - -� - - - - G - - - -- - `- 142" HDPE QUTLE PIPE TOP OF B RM 3/ i'� /) / / ~i - I 2 I ._ _.. 0 0 _ _. . 80' O 0.5X �- k /(�}��jj}/ _ -296 i _ O } Y / - .�-'-' ` ( NNW - / ! P.U.E: I 5 i '�05 FL UPSTREAM = 98.50 .'9'A` ELEV. 3d ,g / / , to ! % / - - /. J 1 c°moom ! } ! \ \ ! FL DOWNSTREAM = 298.20'' / / I a } t f / ' , - - _ - - -_-• - -. - -- -295---- SF 95- - - 1 1 ( l0mo rocvN !} ---- - - -- -� _ R RIP -_ -----_ ---_--Z 02-- ----=-------__-_--___-_-__`\ I' - __. - : p1 - -30i--- - ^v__ --_--r_.._:._ __ �__ _: r ----3Q0-- - -- ATE UNE W -\q ,,�] ,y . - - _ - _ _ - - - _. - = =Boa-.__ � _ _ - _ _ - _ .� � ! j f - _ _ _ - _ _ _ _29s- � /, 11�ATERLINE W-5 D E TEN T� \ OCi�d I ^� / I // i 'i-' J - - ___ ---------_--._299--- _ _� �_ _ _ ____ _ _- `� \ -- __ �� -_296- ( 1. :1 ( } I ! } + / 3 {, �� �� �� f _ - _ _ __ _ - ___ _ _ _ --297-----\\� \ } ! I ! _297- l / ' PON' l 1 1 1 ! ! co } \ / - "_ _ - -__ 298-----.-_---___ ` t 19/ j 1 \ / ,, ©�, - = -' T" 1 (1 I + ! ! (( ROCK RIPRAP 2 _ - --- ,.--�„ .- -'�. f .. .J... �' '� m f ) 297 _ �• .� �; J % I \ � 303- ^' = / EXISTING 36" OUTLET PIPES 1 t29 - - - - 2yS j I ! ( O � / /� --__-_ - -302 ~ 299 (REFER TO EXHIBIT C FOR } i { (�(''t p --CID I `' �.. '•\ � / [ ( ` t I � ADD FILL MATERIAL TO _ d � I ! I 13 VI�K (� Gi/ 301^- - J O i 1 ! !cn 300- } l _ _ MODIFlcnnoN DETAILS) ! ( o \I _ (! t 11 \ ISE THE EXISTING cn o °° ° _ z9s--------- ----- -- ______ ( + ,-� _ _ _ 1 t I i t to v a 10' _ / / i, °°° o° ------------_ --" ! ! v7 - ` - __- -- 29s - - _ i I OND 1 BERM o /.�-- ° ° ° ._. _ _ ._ _, _........ - -' - - - - - - - �. --- _ ..... 296._ ..._ __,_ � r-- i t ¢ P.U.E. i 1 s _.. - - -300- _ - - - \ I _ _ 0 ELEVATION 300.5 A 11�-- _ _ _ _ _ _ _ _ _ _ _._. _ _ _ COMMON I i - I \, "" _. _. -301 - ._... - - --� \ } { --298-- '-- •i'9 �t ! ! O I t sf►-� �� - ___.302 =-so ----- ----- t��\\ ' I ! ! I , t ST - 00+ZO - _ _ _ } t } (. ! I CONCRETE ( - - _ - ( ! _ / i m o v AREA NO. 1 NNNw SPILLWAY _ ` �\I I w 1 W/ DISSIPATDR BL { } . ; e 0-3 082 0 - - - -289 - - - ` BLOCK 14 \ -1 / / } } , 1 W z z 00 t -'� ----- -------------------{--' `JQ7WO:+NW ) )N 0 ! ! i 0.19 ACRES - - 0 0� ,V T ! I I � 1 1 1 ! 1 1 -� - - - i I _ �. _ ....- r I COMMON AREA i ! I c r r - 8 wNN \. IIlil 1 I l 11 10 7 ! 20 I , acc� }!}}! , i I t ( \ NOS 13 - - - - I COMMON A� I � .. WWW .- �, _ _ _.. ._ _ _ _ - • - - _ i ) ooao oaop _ \ 1 f 2 o -- o I \ \ 12d WIDE SPI CREST : _ ' w 6 IAYI Iil!{ 1 + WWww / _, , _. t0- \ oo \ ELEV. 304.0 ! o „ o _ 3.33 ACRES \ DETENTION I I �,,, , ! Z _\ --- --- ----- / I i i o / f - I V POND 2B ! ! t _ I ! ! ! BLOCK 8 i } � 1 ! DETENTION i Hill I } egg < l Til I °- 21 \ / \ , \ - / ! ! \ POND 2A , ! ! il111 / I i111 0 sT - ST ST -sr 45 / \ ! ! ! 1 / (� V) _ I - i ! I I! i \ / _1 ! I � w I! I Z o 10+0 �_-- 1 / i 1 Ir -- [ ! ► - ! ! I ► ! stern Sage .Court ! ! ! I � o - I / \ , 27 B ASPH PVMT, 50 ROW,i ► ! } / 1 I i 2 I O �' / I !, OC ! \ H ill 2 1 I ! ! W 1 0 I \ Ld dill I + r t o ! t I 44 -� \ _ I I \ NNwcawW - TOP OF BERMOno / ! CKI J t i ; 1 \ i , ! 1! i! I I i I i �� OMNN ao ( I 1 t 1 I TOP OF BERM ! i! ` I! i! i 1 \I\ i 1 I - \i i! ELEV. _ 305.2 ! ! COMMON AREA 23 -� 1 A I o i �!jil, , �\ ( of ( , 1 4 1 } { II IIIi I , 1 ! !! l T+- T 1 i , } t I t t NO. 15 ! ! ! ! 11 I i \ BL i CK 14 ! ! I o '--Oj RES ,f } } ! i \\ j 1, _�� !!! 11 - I ! 1-. I 3 1 5 2 4 I , I I I i I z 24 o I I I i j 'I. �, l � � }i 9 ! I \ J �� I I f /I I -- i BLOC 13 �\ 1 j}, i W= cu� 1 ��_ I ! I \4oo x , 304 30 ! I �' , ( �) `7 ( .-1 ! 0) !I o I BL CK18 I \ I V / I I\ I I Z j l ! 11 1 /I i I I ! 1ao , i 'T ^i` �� 30? 1 I`�� \\ o ti I tl 1 I I I \\ i I I 1 11 // \`` --__- ✓,6 7 l l�' m�oO w ! W t I O = X '� ! ! ! 1 -'� J36 34 ` . 32 - U % 3 / 29 -' 2-27� 26 25 I 1 11 - 0_ 9 \\ �\ Q+ °- �, X 41 40 39 _ 38 / _ - v__ N 5 _ _ / , , I �/ - O 7 r__ / _ I w • 3 os - /�� \ , \ r� _ c� ;:. w ami � UCrj ti ---1 - ----------- - ----- -- ----- - -- ------ -----' --- --- - -� --- -1 -- -- - ----- -� -- `----. --- --- - o J I / ! / \ \ ! I > M - Ls is - - is -- is is is is -�- is _ is is - is is / ° ; / ` \ j I I N m ti -� +00 122 00 �" 3+ 0 / + 304 �f �/ 26+00 7+00 \� 28+ - 29 0 I -� \ rp�� 1+00 31+67.92 I \\ ! ( i 00 / 19� 0 2 00 - - - - - - - I- -+ I �� +-- I 6! I O - _ _ � _ _ � I - ` � 27 � `B ASP 5Q OW / + _T I T / P VM T, 50' ROW 1 J 304 \I�. 1 2j 1 ( 1 ------ -- -- -t---- -- -=-- - --- -- L----- /-� -- - -� -- ----------------- - ----- - -- co --� --- - ---------- --- - L ----- -- -- ----_1 t �, / D - , -- --- \ \ i B OCK F�2 20' CK 12 r \ 20' \ ' I `\ ! r t I BLOCK 112 1 1t 1 . I i I I� I/ ! 1 1 I 1 �' P.U.E. ..- _\ P.U.E. I � I � \ \ � ., I-------- I ::t \� \ I Lo --- /f , 3a5 I _' 1 \ i LO K 13 i W J - 10 -' ~ ` -''"' 1-� - - -- --13 4' 17 4.8 19 20 21 2 i � ,� i � ,� 3 4 5 6 7 / 8 / __-.,- . - ' '15 16� I 3D 2 3 Ln ,_A 30$ \ so //COMM AREA N0, 12' 1 __ _ -_J 10 CD I 10' I ��\ I 1 � � 0.2 A -^ 305 J 1 �1 1 - f _ L I I _ _ _I _ P.U.E l cl .U.E. i/ / _ / i 1 -- ----- ---- G/ --- ---- --- ' --- ------I ---- --- ----- --- --- -------- ---- --- --- ---- - ------ '---i -�-`- ------'�---�-- -------------�----- - - -- - -- ` -{- - \ Z mh W t J �► W N > � 1 _ REFER T3 EXHIBIT C_ FOR G10 INUATION WO�o OF G A NG PI LAN i } \ 1 W 42 HDPE PIPE _ 50 �5 _ C V FOOTPRINT 1 I 0 50 OF FOOTING 1 W , SCALE IN FEET Q TRASH RACK #4 @ 12" O.C.E. W. 5.5' " GRATE I I #4 SMOOTH NOTE: �y N 12 I I I LL 4:5 �1 ICAC IN ALL ELEV. 302.0 OVER 1 BARS J" O•C.E.W ALL AREAS DISTURBED BY CONSTRUCTION SHALL HAVE A MINIMUM OF 4" OF TOPSO ( , ELEV. 302.0 WALLS 1 1 SALVAGED FROM THE STRIPPING OF THE SITE, PLACED ON TOP OF THE DISTURB EAS v - - I- - - - INCLUDING STREET RIGHT-OF-WAYS, EASMENT AREAS. THE ENTIRE AREA OFD POND fn 3.5' X 1' OPENING - ELEV. 301.0 ( I ? 1 AND Flit AREAS. ( LEGEND 1 5.5' i I rti 0 6" (TYPICAL) FL ELEV. 301.0--3.5'-� ( I GRADING CONSTRUCTION NOTES: 1' X 1' OPENING B B -- "L" BAR FL ELEV. 298.5I I i - I 1. FlLL MATERIAL USED TO ACHIEVE GRADE IN AREAS TO RECEIVE SEE DETAIL) -ELEV. 299.5 PAVEMENT, AND WITHIN THE STREET RIGHT-OF-WAY SHALL BE COMPACTED TO AT LEAST 95% OF THE MAXIMUM DRY DENSITY AS. 9" g" - - - - -- 5 I I DETERMINED BY THE TXDOT PROCTOR TEST, (TEX113E), AT A I I MOISTURE CONTENT FROM 2% BELOW TO 2% ABOVE THE OPTIMUM ELEV. 298.5 1 ( MOISTURE CONTENT. OTHER AREAS TO RECEIVE FILL MATERIAL -s- -� -a- -a- -a- -� I I I _ 1 SHALL BE COMPACTED TO AT LEAST 95% OF THE MAXIMUM DRY DENSITY AS DETERMINED BY THE STANDARD PROCTOR TEST, ASTM 4 ® 12" O.C.E.W. I 3.5' I D-698, AT A MOISTURE CONTENT FROM 2% TO 4% ABOVE THE OPTIMAL MOISTURE. , 1 2. THE SUBGRADE BENEATH THE CONCRETE SIDEWALKS SHALL BE SECTION B-13FRONT VIEW I i I COMPACTED AND "PROOF -ROLLED". ANY WEAK OR Son AREAS NTS I I IDENTIFIED BY THE "PROOF -ROLLING" SHALL BE REMOVED AND 6 N.T.S. 12" REPLACED. i 3. ROCK RIPRAP SHALL BE 6" TO 12" PIECES PLACED TO A LBAR DETAIL TA i L 12" 12" I 1 MINIMUM DEPTH OF 12". UNLESS OTHERWISE NOTED. #4 BARS 24" 1 1 4. HANDICAP RAMP SLOPES SHALL NOT EXCEED 1 V:12H. NTS POND 2B OUTLET STRUCTURE - - - - - - - - - = - - - - - - - - - - J 5. THE TOPOGRAPHY SHOWN IS FROM AERIAL TOPOGRAPHY BARS REQUIRED ® PREPARED FOR THE OWNER OF THE PROPERTY IN 1997. 12" O.C. SPACING 18" PLAN VIEW GRATE COVER DETAIL NTS __7 -310- - (- - EXISTING CONTOUR (MAJOR) -308- _ - _ EXISTING CONTOUR (MINOR) I) ROW LINE (' BOUNDARY PH 2 & 3 - - PROPERTY LINE -� FLOW DIRECTION PROPOSED STORM SEWER PROPOSED CONTOURS PHASE LINE No CONCRETE CHANNEL LiNING m CONCRETE RIPRAP ROCK RIPRAP 307.25 SPOT ELEVATION • J If J_ / / ! / f— ! l / / IiA I 1' i ( - �" I � I � r j / , I I J i I � / I I/ I I/ I I --_ ot- 1 / / / / I r /• ,`- ,.- / ( � CK 8 !,✓ j -- _.._ -- -- _-3...3fl0- --- - +�.U.E: tiry ry o' r r / P.U.E. ST -- � - S ��-- /J -- .�-=-3az1---= - I , T sr �r --�- Opt z0£ - -77 ! ! ! D I OC K r \ , o i 47�' I ! i v �` l i I �'�` L I � I ,� i . I I I i j I I i I I N I J N I� I i { I { \ � ., � \ \ COMMON AREA 1 ! I. I -- I I I ! I z I Sr Fob 1 34 33, I 31 30 29i 24!L 23 22 _ _ 1 1 20 { ! Q ! 1 i If FU SPRVic�'8 , 37 / 3 / 35 _ } i ,� o 11 t 6 i / i � J} I I I, /I ►/ I I �I I I i I � I � I I I I I i � � I } �.- DETENTION : o Xn R / / -- --- - - -\-- -- -1- -�--- --- -�- --- - -�--- ITILI - — \ _ 00 !I POND 2B U) o r .� / / I ✓ - 3t— m p�% \-.39n_, = ST; 308 m o 00�/ 1+00 -4./5+00 7+00! 8+00 0- 10+O W z z 0NU0 ---------- +00 ------ — +00 i o N I } / I m / 1\ r 10_ - r } 1 - OCK1-� � 1 � I I I . I I I , I ._ _ 1 _. ,. _ I r J t � To T t / ,- o ._ 3 4 '� � ,/ 8 10, 11 1--l-11" - 13 14�. 15 16 117 ! BLOCK 5 / I I /1 1 + I ! ) ! 1 I , ( (: � / [ I I I � I r- I I �: I I -` I �`I I I I � i � I 11 ! i cf)U 1 ! �ItI o ! � � , 3,6 I . � X42 ` z \ I ! ! II C. No. _9-301 30 I i ao1 ACRE. � I -/ -1 -- '-- l --- -- - - -- � -- - -f - - -- ,=' -- ' it i � f 1 � r / '� 00 e-- \ ) MMON REA1 ,� OCK 10 ,f f I/ / I j L \I NO. j I Q.15 ACRES CKI 8 1 / / / �r r�- l / 5 24 ' 22- 2 ,.20 I i I _, I W j / 36 5, , / 32 3-0 — 28 7 26 f / r I I / 39 38 r ` , j 36 F- ! 322_= — — A oo, / \ / , , , �, /� I I 41 0 0 If 1[ " I — — — --- — — — — — — — — — t — — — — — — — — — — — — — — i L - — — — — — — z — — is is is — is — is - -�'- Ls — iS) — .Is — l is — is is is is —{— is — — is is —is 'y, N is — is is is -- is — 1s — — 1 — 1S — is is — 1s — is — is 1S — 1S 14+ / / 15+ -ter 16+ I 17+ 18+00 j 19s 0 2 0 h +00 -4 122 00 _ aj / — — - — -}-T— — — — — m : N ti ca LH cav BLOCK I 1 17-- 315 _315- —J65 -\ $- ---- — ---- L --- /t--- --- - --- f ---- f W } / I m / 1\ r 10_ - r } 1 - OCK1-� � 1 � I I I . I I I , I ._ _ 1 _. ,. _ I r J t � To T t / ,- o ._ 3 4 '� � ,/ 8 10, 11 1--l-11" - 13 14�. 15 16 117 ! BLOCK 5 / I I /1 1 + I ! ) ! 1 I , ( (: � / [ I I I � I r- I I �: I I -` I �`I I I I � i � I 11 ! i cf)U 1 ! �ItI o ! � � , 3,6 I . � X42 ` z \ I ! ! II C. No. _9-301 30 I i ao1 ACRE. � I -/ -1 -- '-- l --- -- - - -- � -- - -f - - -- ,=' -- ' it i � f 1 � r / '� 00 e-- \ ) MMON REA1 ,� OCK 10 ,f f I/ / I j L \I NO. j I Q.15 ACRES CKI 8 1 / / / �r r�- l / 5 24 ' 22- 2 ,.20 I i I _, I W j / 36 5, , / 32 3-0 — 28 7 26 f / r I I / 39 38 r ` , j 36 F- ! 322_= — — A oo, / \ / , , , �, /� I I 41 0 0 If 1[ " I — — — --- — — — — — — — — — t — — — — — — — — — — — — — — i L - — — — — — — z — — is is is — is — is - -�'- Ls — iS) — .Is — l is — is is is is —{— is — — is is —is 'y, N is — is is is -- is — 1s — — 1 — 1S — is is — 1s — is — is 1S — 1S 14+ / / 15+ -ter 16+ I 17+ 18+00 j 19s 0 2 0 h +00 -4 122 00 _ aj / — — - — -}-T— — — — — m : N ti ca LH cav BLOCK I 1 �I \i o ti M n. } z � / a o _� x -I — — _ 1 I OCK 12 } % � r I t I ! _ __ _: I-• -- LL_- _ I --_ == - =1----- - _ _ _ _ _ I k -- _ _ i. . I I _ LOCK 112 I i ! -_ - i _ � I I I O W , a� ca ! I� ( I/ ,• I / Y I 1� --- - ' I I I r .- I ! I+ 2rav NY U) , , j I t 1 I I I I I I / � -- -- -/ -- i (f I/ r I / I I ,�,,.�- I I , r,,.,.... I I I - I/ i i I i SCALE IN FEED --- - ----- --- ---- - --( -- --- `-7=- ------ - -- ----- ------ --J M / -- - -- K_ mum- ! I I DI ! i ! "'-i ! i I UD'y ! II 0-4 II( I r GRADING CONSTRUCTION NOTES: If 1. FILL MATEiAL /j I 11 STREET RIG—OFUWAY SHALLTO 7BE COMPACTED O E IN AT TORECEIVE 95% OF THE MAXIMUMENT, AND DRY THfF , i f i I DENSITY AS 'DETERMINED BY THE TXDOT PROCTOR TEST, (TEX11. , AT A MOISTURE CONTENT I FROM 2%. BLOW TO 2� A86VE THE OPTIMUM MOISTURE CONTENTOTHER AREAS TO DECEIVE FILL MATERVL.SHALL BE C6MPACTED TO AT LEAST 95% OF THE MAXIMUM DRY DENiftY AS / DETERMINED BY THE STAI4DARD PROCTOR TEST, ASTM D-698, AT A MOISTURE CONTENT FROM NOTE: f / i / —?% TO 4%" ABOVE THE 6PTIMAL MOISTURE r / ALL A„6EAS_DISTURBED BY CONSTRUCTION SHAI HAVE A MINIMUM OF /4" OF TOPSOIL, I r — 2. THE SUBGRADE BENEATH THE CONCRETE SIDEWALKS SHALL BE COMPACTED AND If SALVAGED FROM THE STRIPPING OF THE SITE. PLACED ON TOP OF T}�E DISTURBED AREAS "PROOF—ROLLED". ANY `WEAK OR SOFT AREAS IDENTIFIED BY THE "PROOF—ROLLING" SHALL BE r INCLUDING STREET RIGHT—OF—WAYS, EASMENT AREAS, THE ENTIRE AREA OF DETENTION PONDS, REMOVED AND REPLA 9. MD FILL AREAS. 3. ROCK RIPRAP jSHALL BE 6- TO 12" PIECES PLACED TO A MINIMUM DEPTH OF 12", UNLESS OTHERWISE NOTED. j 4. HANDICAP RAMP SLOPES SHALL NOT EXCEED 1V -12H. 5. THE TOPOGRAPHY SHOWN IS FROM AERIAL TOPOGRAPHY 0 GRAPHY PREPARED FOR THE OWNER OF THE PROPERTY IN 1997 AND FROM AS—BUILT SURVEY DATA i — N m ------ — — — — — — — — — --- / ---- --'_--- =--f 0. t '^ W I O I z O Ll Z ^U) REFER TO EXHIBIT D N FOR CONTINUATION W _ OF GRADING PLAN LL " Wpm 4.5 8 ELEV. 299.55 i l _ ELEV. 299.55 CONCRETE WALL _06 #4 BARS ® W 12 O.C.E.W. 36 " HDPE V V �� II CONCRETE WA L PIPE — ELEV. 296. 5 LEV. 296.05 Q Q Q w CONCRETE FOOI NG 36 HDPE . PIPE POND 2 A � FOOTPRINT OF FOOLING OUTLET PIPE 67 �� - -- - EXHIBIT MODIFICATION CONCRETE WALL I —J65 ---- — ---- -/----- --- /t--- �I \i o ti M n. } z � / a o _� x -I — — _ 1 I OCK 12 } % � r I t I ! _ __ _: I-• -- LL_- _ I --_ == - =1----- - _ _ _ _ _ I k -- _ _ i. . I I _ LOCK 112 I i ! -_ - i _ � I I I O W , a� ca ! I� ( I/ ,• I / Y I 1� --- - ' I I I r .- I ! I+ 2rav NY U) , , j I t 1 I I I I I I / � -- -- -/ -- i (f I/ r I / I I ,�,,.�- I I , r,,.,.... I I I - I/ i i I i SCALE IN FEED --- - ----- --- ---- - --( -- --- `-7=- ------ - -- ----- ------ --J M / -- - -- K_ mum- ! I I DI ! i ! "'-i ! i I UD'y ! II 0-4 II( I r GRADING CONSTRUCTION NOTES: If 1. FILL MATEiAL /j I 11 STREET RIG—OFUWAY SHALLTO 7BE COMPACTED O E IN AT TORECEIVE 95% OF THE MAXIMUMENT, AND DRY THfF , i f i I DENSITY AS 'DETERMINED BY THE TXDOT PROCTOR TEST, (TEX11. , AT A MOISTURE CONTENT I FROM 2%. BLOW TO 2� A86VE THE OPTIMUM MOISTURE CONTENTOTHER AREAS TO DECEIVE FILL MATERVL.SHALL BE C6MPACTED TO AT LEAST 95% OF THE MAXIMUM DRY DENiftY AS / DETERMINED BY THE STAI4DARD PROCTOR TEST, ASTM D-698, AT A MOISTURE CONTENT FROM NOTE: f / i / —?% TO 4%" ABOVE THE 6PTIMAL MOISTURE r / ALL A„6EAS_DISTURBED BY CONSTRUCTION SHAI HAVE A MINIMUM OF /4" OF TOPSOIL, I r — 2. THE SUBGRADE BENEATH THE CONCRETE SIDEWALKS SHALL BE COMPACTED AND If SALVAGED FROM THE STRIPPING OF THE SITE. PLACED ON TOP OF T}�E DISTURBED AREAS "PROOF—ROLLED". ANY `WEAK OR SOFT AREAS IDENTIFIED BY THE "PROOF—ROLLING" SHALL BE r INCLUDING STREET RIGHT—OF—WAYS, EASMENT AREAS, THE ENTIRE AREA OF DETENTION PONDS, REMOVED AND REPLA 9. MD FILL AREAS. 3. ROCK RIPRAP jSHALL BE 6- TO 12" PIECES PLACED TO A MINIMUM DEPTH OF 12", UNLESS OTHERWISE NOTED. j 4. HANDICAP RAMP SLOPES SHALL NOT EXCEED 1V -12H. 5. THE TOPOGRAPHY SHOWN IS FROM AERIAL TOPOGRAPHY 0 GRAPHY PREPARED FOR THE OWNER OF THE PROPERTY IN 1997 AND FROM AS—BUILT SURVEY DATA i — N m ------ — — — — — — — — — --- / ---- --'_--- =--f 0. t '^ W I O I z O Ll Z ^U) REFER TO EXHIBIT D N FOR CONTINUATION W _ OF GRADING PLAN LL " Wpm 4.5 8 ELEV. 299.55 i l _ ELEV. 299.55 CONCRETE WALL _06 #4 BARS ® W 12 O.C.E.W. 36 " HDPE V V �� II CONCRETE WA L PIPE — ELEV. 296. 5 LEV. 296.05 Q Q Q w CONCRETE FOOI NG 36 HDPE . PIPE POND 2 A � FOOTPRINT OF FOOLING OUTLET PIPE 67 �� - -- - EXHIBIT MODIFICATION CONCRETE WALL I