20081063 Ver 1_Stormwater Site Plans_20080707

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1}IODLO6Y AND TREATM~IT REMOVAL RATES ARE TAK~1 FROM NCDEH~R AND CITY DE51GN MANUALS, ~ . - ; - - / : / ;r . - . ".r , ~ f ~ - - - . , PROP09ED TREATMENT MEA5URE5 ~ _ 1 / ` l , l - ARO„"9 aHANNQN PRELIMINARY SUBDIVISION ABSTRA?GT
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i , ~'FLLL - 1 'fit,`/ .',.:J'/ ! . , EXTENOED.DETENTION WETLANDS t0 TREAT RINOFF FROM DEVELOPED AREAS, - . - _ _ ~ 2, PAYMENT OF ~ TO THE NC WETLANDS RESTORA110N PROGRAM FOR BALANCE ~ REQUIRED REDIX,TION D„E~ ~ZE 2lpb ,r; \ THIS ANALY55 HA5 BEEN CONDUCTED IN ORDER TO PLY WITH THE REQUIREMENTS OF TH OF N5 I E CITY RALEI6 ' / - ~ ~ ' NEUSE RIVERINUTRIENT MANAGEMENT REQUIREMENTS,C~ _(T5bb15651,', , i.', / ' • 1 l '1
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. - / ~ / ~ / /I.. I i I - - _ - - G , PRE 1REA7MEMIT - `~a 1- . PRIMARY TREATMENT SECONDARY TREA T \ _ - - - J- i ,r / / : I ~ j ~ ; ~ WVER TOWNS 15 A RESIDENTIAL COMMUNITY OF SINGLE FAMILY DETACHED HOMES AND SHOPPING CENTER
/ II f,,~ i r'' r ' ` ' f ~ ` ~ ' PROPOSED FOR A 356 ACRE TRACT OF LAND LOCATED ON BUFFALOS ROAD NORTHHEAST RALEIGH. THE TRACT I$
TYPE OF LAND DOVER , _ 51TE AREA TN EXPORT TN EXPORT TN EXPORT BM MEASURE 1N REMOVAL TN EXPORT TN E~ORt BMP MEA5URE TN RB4WAL TN \ \ - - J.. - . i EM17RT TN EXPORT - . _ , ~ ' . - / ! I ' / ~ f, ~ / 1 i 6~~I ,gyp/ \ TONED RESIDENTIAL 4, LONDITIONAL USE DISTRICT (R-4 LllD) AND SHOPPING CENTER, CONDITIONAL USE DISTRICT ~ r ~ ! ~ ' ~ / , J` , _ (5G CUD). THE PROPOSED DEVELOPMENT 15 TO BE A COMBINATION OF GOMMERGIAL, RESIDENTIAL, AND I
GOEFF, 6Y LAND USE FRAM 5nE I ti ~ _ - , - - - ~ ~ ' . ~ i . . RATE BY LAND USE FROM 517E RATE BY LAND U5E FROM 511E ° _ . ACRES L85/A~G/CR L85/YR L~/A01YR - ' - pG~/, _ ~ ~ ~ 1 / ~ _ REG .axe . ~ ~ ~ ~ _ ~ ~ ~ ~ / I ~ ~b56~'~~ ~ ~ ~ ~ / ~ 6~ ~ ~ ~ ~ ~ REATIONAI. U5E5.
% LB5/t'R LEb/AC/t'R A; LE5/YR LBS/AC/t72 ' \ ' ` - . _ ~ _ , • / / ~ I~ ' ' : - ~ '
- . DISC OPEN SPADE 35.00 Ob0 11A0 . - - , \ PERRY; BILLY-N€A~ / , : _ 1` 0.00 1100 NONE OAO 11,00 - - - r ~ ~ r ~ ~ I I I ' r THE PORTION OF THE DEVELOPMENT THAT 15 CURRENTLY BEING PRE5ENTED FOR APPROVAL IS THE RESIDENTIAL ~ i r i : ~ ~ „ ~ I, ~ I ~I I-I ' , ~ I I ~ ~ r , ; ' AND RECREATIONAL PORTION LOCATED BETWEEN EUFFALOE ROAD TO THE SOUTH AND BOUNDED TO THE NORTH BY
~~MfCDRED6 - . \ / I . l~J . \ - ' - MANAGED : . -~"6EED BD©K,02993~ ;r. ' SPACE 0.00 120 OAO I \ • - . . A~'1~I~C,'~~Rf! ; 635 1 , { : I ! ' THE STREAM AND WETLANDS AREA THAT SEPARATES THE PROPERTY INTO TWD DISTINCT PIECES. THIS PORTION OF ~ ~ ' i ~ , , - , S .,GMR+S.TINE L ~ THE PROJECT IS TD BE COMPRISED OF bll LOTS AND A PRIVATE RECREATIONAL FACILITY TO BE CONSTRUCTED ON
NONE OAO 0,00 NONE OAO OAO - - . i - - .DEED PA E:.~#6~ .i. i I i I t - E/qd rt ' ? ~D 600 12594 APPROXIMATELY 282 ACRES OF THE TRACT.
~ ' 175612414A _ ~ , _f ~ LAY9J AND LANDSCAPE 169,88 120 203,86 ~ , _ . ' OONST. WETLANDS 0.40 122.31 NONE OAO 122,31 ~ r" / 91N~E FAFIILY~ ' . • ; ~ ' I ~ y / PAQE 041 r ~ i" y `6341 / x ~ j r y~ ~ ~ 56601~1b
- _ ~ ~ - r ~ " ~ ~ ~ _ 633' ~ r ~ ~ ~ ~ rl ~ ~ ~,a ; AST BOTH WATER QIIRLiTY AND WATER QUANTITY CONTROL WILL BE PROVIDED THRGIIGH A NUIhBER OF STORMWATER ' ..-r--~c~'- , ~ ~ I ,
_ , 1852 2120 1664b2 , ~ r.. _ . ` _ l.ONST. WE7LAND5 0,40 998.17 NONE OAO 998.T1 'r ,--1'. ~ CONTROL DFIIGES. DEVICES AT DRAINAGE POINTS I AND 3 WILL BE GONSTRUGiED A5 PART OF THE FUTURE ,p 1 ' I , r ' ~ ,rf ~ 632` ~ /I~ I I ; I • GOhh4ERGIAL DEVELOPMENT ENVI510NED FOR LOT5 678 AND 619. THESE DEVICES MAY BE DESIGNED A5 WET
• / ~ I ~ 1 . ~ "'~+Y; ~ ~ , , . ~ i ~ , ~ ; j ~4~ ~ r r~ ` ~ PONDS, EXTEIDED DETENTION V~TLANDS, OR UNDERGROUND STORAGE W)TH SAND FILTERS OR GRA55 SWALES. ~ I~~: / ` ~ ~ ' ~ ~ ' ~ 1 i i~ ` WITHIN 711E RESIDENTIAL AREA EACH DEVICE WILL BE GONSTRUGTED WITH THE PORTION OF THE DEVELOPMENT IT 15
~ _ ~ , ,r TOTALS . _ . ' - r 2$3,40 Uj89.48 1141.09 1142.09 / , ~ " / - :1 ~ ~ r I ; ; y I i ~ li ~ ~ I 1 ' ~ ~ , ~ ~ L: } 1, ' I~ i ~ ~ TO SERVE: WE BELIEVE THAi FAGH DF THESE DEVICES WILL LIKB.Y BE AN EXTENDED DETENTION WETLANDS,
AVERAGE PER ShE . ~ ~ ~ _ ~ , , _ • , , ~ : : t ~ ~r r ~ ~ ~ I1~% , . , , j 6411 I ~ } , , ' ~a4~ 'I 51ZED TD PROVIDE A NORMAL POOL 5URFAGE AREA BASED ON THE DWQ BMP REQUIREMENTS, AND A WATER ' ~ r ~ " ' 83p ~ ' , ~ I ; " QUALITY FOOL BASED ON CAPTURING THE RUNOFF FROM THE I" STORM, ABOVE THE WATER QUALITY POOL WILL BE A
6b1 I - : ~ , , , 1., ~n' pl, b25~ ~ 1 ice. A ~ i I ,I " , ~ I' + ~ ,I \ DETENTION POOL TD PROVIDE DETENTION TO MEEt THE TWO AND tEN YEAR 5i0RM5. THE INFORMATION , Fi26 ~ , CONTAINED IN THIS REPORT AND ON THE PLAN515 PRELIMINARY IN NATURE AND SUBJEG7 TO CHANGE AS THE
~YI ~ ~ I: - -:.ter- ~ ,yµ, 4 ~ r' YI' ` I 1 ~ I~" /624 ~ ~ 629 ` ° !I / : 644 .1' DESIGN OF THE PROJECT PR06RE55E5. THE DEVICE TYPE, LOCATION SIZE OUTLET 57RUGTURE, WATER SURFACE
ALLOWED tN - - ~ f 360 3b0 1' _ . / ~ ~ ~ I / , , ~ b ~ 1 ; ~ , f ; • / ~ ELEVATIONS, DRAINAGE AREAS, AND IMPERVIOUS SVRFAGE AREAS ARE ALL SUBJECT TO GRANGE. THE FINAL I ~ - I . ~ % ';r b2$ ~ / ~ DESIGN OF EACH DEVICE WILL COMPLY WITH ALL APPLICABLE LOCAL, STATE AND FEDERAL REGULATIONS.
- • ,I, ~ / 1~ ' -608~.C7Q31 ^ • 1. ~ 1 lxl -
~ \ 5 , 1, 686 L ' ; ~ - - 15 ANALYSIS WA5 PREPARED U5ING THE FOLLOWING AVAILABLE SOURCES OF INFORMATION - 1 s ~ ~ TH r , " \ fir.; ;1,.' ,621 ~ ~ d / 6Bl ~ ' i t , , ~ i
FEE DUE 6850.50 PER LEUAlIRE ' ~ 1 I ~ ' 1.r I` ~ ,`9°!614 ~ ,r , I' J 5' „ 2 ~ 'J ~ ~ I -T~ - i. BOUNDARY DATA FROM WAKE G0. REGISTRY AND CITY OF RALEGH 615 DATA.
Ill I,I ~ _ ~~61 r I _ - , ~ 615" ;r, f ~ 1 I / bB8 1 ~ I ' 2. CITY OF RALEIGH 200 SCALE AERIAL TOPOGRAPHIC MAPPING. ~`I / ' / ' ~ J ~ t 'b6~, 'ti/I' ST , ~ ' ' ~ i ~ ' ~ ~ ~ 3. U5DA, 5G5, 501E SURVEY FOR DURHAM COUNTY, NG. ' :
: _ - ' : 1 ' ~ f I 1 . ~ ~ 611.' - ~ : I' is I I I . 61 ~ ~/r~+bl1 ~ ~ ' " 6~' ~ . ~ 1 ' ~ 16~ ~ ~ / ~ MAP FOR RALEIGH, NG. C." A FLOOD INSURANCE RATE 5. FEM Y OTHERS ~ ' T ,61$`;1/614 I ~ ~ I(~ ~ I I ! , \ '667. / / r ' /l~ ~ 'f/ / PRELIMINARY PLANS FOR OLDS TOWNS PREPARED B
_ _ I; i , , ~ , : / / ~ i i ~ _ _ _ _ ~ r i t. ~ ~ ' I ~ I I j i b02 601:' - ~ , I ' _ ~ ~ - I c _ _ _ _ _ ~ \ i ~ I 604 ~ / 11 /t ~ 1 ~ ~ ~ ~ t j I i ~ X90 ,
: , s , , , E5 q.I I , , ~ , ~ 598, ~ / a^ ~y / I ~ ~ THIS ANALY51515 BASED ON THE HYDROLOGIC AND HYDRAULIC PRINGIPLE5 AND METHODOLOGIES DOCUMENTED PI i I i (j~8
: mil,, I L- ' ` ~ ' 1 , I ~ , , ~ ~ - 2815 \ ~ . . , I , 1. _ I ' ~ , ~ , . ~ _ "591 g : 5&7 ' 1 ` i . ~ ~ ~ ' 6 689 j I i - ~ /6qy , , ~ / ~ ~ THE FOLLOWING PUBLICATIONS , i i ~ 1 I 11. ~ f
'i ~ , ~ I _ 712 ` i /.I - ~ 1' 1' 596 , ~ ~ ~ ~ ! : , I j ~ r . ~ I I - i I , \ : , 1 . ~ : i 100 : ~ 596 p~;~'~ ~ t ~ r ~ 1/'2 r ~ ~ ~ ~ ~ "II`~ r ~ ~ '~i ~ i~ I. USDA, 5G5, NATIONAL ENGINEERING HANDBOOK, SECTION 4, HYDROLOGY (NEH-4) ' / ~ ~ kb ~ c,8~ 2, 5G5 TECHNICAL RELEASE 55 !i'-'~9 ~/~4,',, ~ -55Tt/~ i , ' ~ ' L % r , q / ! ~ + r 1 ~ 3. SG5 TECHNICAL RELEASE 20
~ ' . ~ ) I _.562' , I'• ~ ~ , JONES `FR dER GK A \ I, , ~ ~ T I T 79 _ I , ' r 5 : I . S MUEL : , . ~ ~ r i 4, I ~ - ,r ; I 1 1 '
\ JR d,.Af~CvELA 7 , . \ ~ ; ~ ~ \ ' ' , i ~ ~ , 1~ ~ - y / ,SB~\/ ,1/~ 1 1 \ V • ~ /7565586 l , : A, ; r , , I , , , - - f ~ , ~ I I"~. :578- ' 1 bbl, ~ 610 1 rbl~- ~ ) ~ ~ ~ I 1 4. ELEMENTS OF URBAN STORhNJATER DESIGN BY H ROOIVEY MALGOM, PE. j ~ ~ ' r 558 ~ 1 ~ "I--- ~ f 693~~ ~ r~ ~ I '
/ . • ' 1 I ~ ~ I 1 1I ~ ~ ~ , 84 ` ~ ~ \ I - . 't ~ ~ ~ I _ - 5 I ri t ~ b51~ ^r. 660 , 613 • , - , ~ DISCHARGES FOR ALL SiORMWATER MANAGEMENT DEVICES WERE CALCULATED U5ING RATIONAL FORMJLA
JONES `H 5 - , ,I ' • ; . r , _ - , , . , . / , , ~ ~ / - - - _.577 •n 1 I ;591 - : + , ,w:< ! ~ • 1 ~ ~ I ~ - ~ I /586 ! rl . : DEED BOOK: 1204. \ ~ : ~ I _ ~ " . - . , I s i • , ~ r ~p i. i , A' ~ ' ~ / / . l ~ I ~ / 676 I I ; I _ - ~r ' ;'S9~' ' i ~53 ~ " . - / 659 I ~ I , 69A I` METHODOLOGY. , ,1 r r~
. DEE PAGE: 431 <,; ~ , ' , / \ 58~ ~I - ; \ / / I ; (156561116 \ - - III _ '!1581! 1 r Iii r I ~ I ti 652 r 674 - - ~ ~ RUNOFF VOLUMES WERE CALCULATED U5ING 5G5 METHODOLOGY AS OUTLINED IN NEH-4, TR-20 AND TR-55. ' , 16q~ ~ 6 ~ ~ i
m ~ 51 LE P MILY ^ ~ ~ : , / / I, 1 ~ ; , - , - . / / .r 574r' ~58q.~ P ~ i ~ ) , , ; _ ; ~ I l,•I MI.,.. \ y oore~./ :I I ~ ` - 1 r 11 i 1 ~ . 'n, r - i k i ~ f I r. ` , b5B r~, ~ I ~ ? ~ ~ r .;ti _ _ 653 I , 67 ~ , ~ j~ TIMES OF GONGENTRATION WERE DETERMINED U5ING (HE KIRPIGH METHOD FOR RATIONAL FORMULA APPLICATIONS.
~ , '1 : : I III 1 ~ 5P0 a' '58I ~ ` ~ ~ - PUB, 5 ,,°DD - ..REYNOLDS, Ig ~ ' ~ ' .~I ~ - ~ ~ WHILE THE NUMBERS AND VALUES GENERATED IN THIS APIALY515 ARE NOT ABSOLUTELY CORRECT, THE ANALYSIS HA5
1 I ~ : ~ , :.r" - ' 1 , c~hA~~ MGHAfL'MJRRA; ' ~ ~ • ~ r - ~ ' , • ~ . , , / Y' / ~ / ~ ( 512 • ' ~ I ~ ~ 657 1 i r~b DEED BOQK, , 654 ~ t 1 li ! 1- ~ BEEN PERFORMED IN A 1AN515TENi FASHION 511tH THAT THE RESULTS ARE 5UFFIGIENT FOR THE COMPARISON OF THE ~ 1 r , , ~ ~ DEED PAGE: BEFORE AND AFTB~ DEVELOPMENT CONDITIONS.
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, , : . ~ ; I r , ~ ~ 51 bLE FAMILY ~ ~ ~ , ~ ~ ~ ~i , 1 / ~ \ 1, / I ~ ~ ~ 1~ ' ~ ~51N6kE FAMILY ; ~ : / : ~ ~ 1 } ; ~ ~ , I - - ` : \ ; ,1 ~ S ~-3p ' . , ' I 30 r.,r 536, ` ~ \ ~ _
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1 : ~..n¦~~ r" , \ yj.. _ _ 3~.. \ 1 333 ~ . : , ~ ~ ~ _ h+~ ' 37q V 1 ~ 3:~0 1 , / ~ i 9 333 ~ k 39B ~ ~ . I RE5IDENTIA~
y~. " e 4 i' _ ~ ( ~ ~ I y , 1 351 ; - _ . y ~ 1 ~ - 358 . , - _ ~ 4 \ .332\ ~ r ~ A _ 33t1 ~ ~ 32~r 31q 4O I ~ ~ V : ~ '
. . - , \ ~ , _ . w . • ....Ir , ~ _ ~ . , 'c ` 331 332 lam. , r a~ r l '~c \ ~ 9 ` / ' ~ / i r~ ~ 1 391 ~ ~ r*r'":`~; A ~ ~ . r,.; ~ t
.~t•- r / ` .rr I ~,1 ; /316 ~ , ~ ~ ~ ~ r ~
~-',~~1~~ _ a ~ ~ ~ \w,_,~, ~ ~ i b ''rl5'~QF ADDI~IObJA~ ~ / 317.
- aye °J ~ 1 w r W ~ ~ _ t + ,i ,.~-1-- ~ ~ ~ i v r ~ ~ ~ \ I RAW 0 BE Dlr IG~A7ED r
, ~ f3U d 'ROAf I i AL
_ ~ ; . - - 1 I`Ih. STORMWATER SUMMARY TAB E ' x~ ~ ~ . t ~ ~ ~ ~ ~ ~ AhJb wiaE~IN~ T~ 1 292 ~ ~,q ~ 2931 ! 211 ~ ~ iII ~GDMPLETE'I/210 A \ ~ . _ `t9
. - f _ _ 4a-~ . , . _ _ . ~ : ~ 1 311 ~ .310 ~ 30y. ~ 3D8~ ~ 1 f , S ~ ~ ~ ~ I ~ ' ~9' 6~B 5T~{EET ,1
DraonaSe . _ . , . , . _ 1.-. _ _ - i!~aXlinlin7 3 ~ 4Pi Y f 312' 1 ' 1 i I _ 130k -305. I 1 ~ ~ ~ ' \ - \ - I . _ f 313 ~ , t 1304 14 303: 31&:. 3 \ . ! f „ I 515 A. , 6 i iob 139 1 I ~ - 1 2atE` ~ r ~ , ~ ~ ~ ~ 62055 ~GTIQN ~ ~ 1 ` g3o;~ 1 I I 1 1296 1295/1 290 ~ ~ ,.qN ~ , ~ ~ + ~ ; 1. ~ ~ ~ t I~ , 303, r I 130Q ~ 1 - '
_Point... .,Pre., .......Post ..._......-.Degice-,.. Pre-Devebpme~-_ . , _Past DevebQnfent - ~r- ~ ..14-,.: - 4a ~ z~1 r~ I / -~---~L. 15~ • ~ ~ ; SVYWiA Drains Drains a ervbus Device Surface Dbcha cfs Dlscha a wkh Detentbn cfs / _ , I . I q 2A8.129 ~ ' L----- - - ~ ~ ~ r l I I ,I I l
# Area Area % Area 2 ear 10 ear 2 ear 10 ear ~ ' 'S1 : 42 259 / - _ - ~ 289 ~ ~ w _ _ I
I i ~ ~ r ! i 15.15 13.91 36.5 EDWedand 16000 29.1 36.4 29.1 36.4 ;r ~ ' ~ ' 2 1 I: ' t - \ , ~ ,i\ 61, \.52.... 4 j fib 26'9 ~.1U 1 ~ L..., ~ ~ 288' ~ I~~ ~ ~ - 1 1 2l~1 l 1
bl ~ / ~ - ~ l i 261 ( _ ~ .1 I ~ , ,.ll 7 1 . ~ 2 12,21 18.02 38.5 EDWedand 22000 22.6 28.3 226 Z83 . ~ 77 , • , , 66 - 53 \ ~ ~ !I 262. - . ,a .mil 1 ; , ? ~ , 273 !2741 i - ~ ~ ~ / , r 40 26 2b4 I 51'Pbq! ~ I I 275 ' ` 2861 1 ~ \ \ " I ~i2 ~ 213 ~ 214 I I S ' 1264 X85 "1 1 ~ ~ ' y
' - - 3 13.45 8.31 83A ED Wetland 20000 22.7 28.4 227 28.4 ~ r 65 - - % . ~ s4 . ' I 1 ~ I ' 1 1215 216 ~ 1 X83 1 3. \ . ~ ~ - ~ I r 211 1 \ 4 \ 1 282 \ ~ 'I ' _ ~ltj- 219 128 261.1.....1 1 ~ I ~ BUFFALOS P K LLG
4 23.53 2 ,21 2Z. ED Wedan 18200 41.2 51.7 41.2 51.7 - - . ~ ' S5 ~ \ / - . - ; -38 • ~ , a ~ ,•k6 6 0 d - ' .7 w_r - ! , d L. r.„ b4 \ ~ 121 ~ 3l ! ` ' \ ~ . I ~ , I ~ i. ,r~ 1, b .V ~ ~~}I DEE155',~948 4.~ ' ~ I 2
5 13.21 22.77 34.5 ED Weiland 25000 22.6 283 22.6 28.3 _ : I ' ' ~ ~ - ` ' ~ - ~ ' ! ; - ; . • ~ !r I &3 I 1 ' ' , • ~ \ ~ ~ t, 3~ i / ' 2 ~ r ,23 , 22 ~ ~1 I, to ' 5 22 ~1 1'.10 ..I,' 4 ~ ,1 1 8.~1' I ~ ~ ` . ~ 255 5'~"~~ ~ f ~It ~ E~?~A~E~3145 ,
6 17,56 14.95 32.0 EDWedand 15100 30.6 38.4 30.6 38.4 - . - ~ . - i ~ /es ab 7 ~ , 119,.. _ _ . . ; - ~ • / w u 7.34 , _ --6~ ; : `k • 9 IY i I 1 I 1 101 1 _ , U ' _ ~ ~RI UI~iURA (8 Y ~ib ~ I~~ I4~ 13, J2 if 1 I ~ / ~ ~ r } / 'i } I ~ ~
- - 1 4 20.6 ~ \ II$.\" _ ._I,3 / 1 ' r2b.r4,f 7 8,24 11.80 36.5 ED Wetland 13700 16.4 20.6 6. ' 33 ; , , _ , _ ~ , I ~4 ~ : / ~ : L' f I ~ 25d/ ,r i ' 181
3 \ , 8 15:61 17.07 30.5 EDWedand 16500 27.1 34A 27.1 34.0 _ ~ / , g ' 1 253 1 --r~-~_ ~ ~ t ~ ~ , ~ ' OJT," " , ~t '
4.2 / ~ r 61 , ~ `i , ~ ' r ~ / 126 I . r~~i, .2~ " ~ 9 1.87 11.15 38.0 ED Wetland 13400 33 4.2 3.3 ! - ~ 7 - :2 1. p2 r rJ : r - ~ 1 160; IT " 182 ~ ~ ~ , v 252 i 6-' ~d~1~7 : ~ ~ ':1 ~ ~ ~ : ~ ' r I i ~ i ~ 251 t. 4NE
10 210 1138 34.0 ED Wetland 12400 3.0 3.8 3,0 3.8 ; ; _ I ~ , ' \ ,u5 1~ , ~ 1 179 1 / ~ " 1 I ,r I6 ~ 1 181 _ 183' ~ ~ ~A ~ 5~ '4" ~ ti ~ " ~ ~ ~ ~
11 3,80 6.49 37.5 EDWedand 7700 5.8 7.2 5.8 7.2 1 I _ . 1 ~ ~ ~ 1~ , ; , sl 119 I~~o,'.-161 I~ - a 1 ~ ~ ~ I. 1 I - Ij~q~~~1b0~_I6,1 N ~ Ilh.-. 1 1 ITTI! ~ ~I&1 / ,'2~'~ ~ ' ~ I 1~ t °r ~ I I 1: 1,161 ,L/ ' ~ _ ' ~ 163
79 b 0 . 12 17. 1 .64 37. EDWedand 19400 29J 37.2 29.7 37.2 ~ ~ ~ ~ ' ' a i31 ~ , + ` 1~ ~ ~ _ _ - Io , , , ~ ~ , a ~ 153 y Ill ! 113,1 114 Il5 I : / - 185 ~ ',24~ f t~ tr ~ A ~ r. ~ ~ ~ /i8 ~ i ~ ~ II /
13 4.82 8.69 36.0 ED Wetland 9900 7,0 8,8 7.0 8.8 ---PUB; 5T I~~° - - - _ : 109.. ~ ;....,,I' #I 32, • u 152 - ' IQb ~ ~ ' ,x~~'1 - \ 14 7.64 8.86 30,0 ED Wetland 8500 11.5 14.4 11.5 14.4 _ _ - logy , ~ I r 'il ; ; ~ . r , ~ ~ ~'15>` ~ _ I N I;o 164 h 192 ? . d I ~ / ~,2~ , .j ~ ~ 193 1 ~I ' ; _ _ ~
. _ : ~ . ; . .r . , 133 i \ 15 1.07 6,66 31,0 ED Wetland 6600 1.5 1,9 1.5 1.9 _ _ . , 94. ~ , ' . ; ; ; ~ ~ ~ I • , , ' . ' I ' i5~ i,'' ~ I 169 4 _ ' ~ ~ I~ PURYEAR, ELVIN ~ I~I ~ r / ~ I r , ~ ~ 1 ` I$8 \ , 24 r~ , i ~ i D~0 E \ , , ~ ~ a ~ II; ~ ,
'.Si4 195 ~'96 197., 98..' y •IQq , : i!( ~ I'~7 1 136 I ~ ~ 1 1203. 202 16 7. 14.49 29.5 ED Wetland 13600 10.9 13,7 10.9 13.7 - r I I I 1 I _ ~ ;i ' ~ ~ , , IaQ'` ' \ . \ ' ~ 12o1i.205} 2~1 ~ 84 111 I I / \ . , ~ OB 1 . 204 203 202 1~5 18 I ~ ~ ' ~ 'r _ _ 2 0, 2 ~I,,.- !I` ~ ` I~. Ir199 II 19B 191 I~ 196' 1 195 I ~U'f ly8q ~ ~ ~ I1 1 > ~"""^~„w~
- I ! 1 ~ 104... ~ fIQ .1, / ~ , I 11 ; S a 135 i /~~I, ~ . 1- f I ~ . i I 17 231 8.55 34.0 EDWedand 9200 3.4 4.2 3,4 4.2 ~ - - - - ' I T Ibb i r , 201 110011 l ~ ' 11: lq 0 ~ i ~ ~I 6 t I I~WiGAIyTS ° . _ 3 ,
130. ~ ~ \ , ` . 18 29,58 21.01 31,5 EDWedand 21000 48.1 603 48.1 60.3 _ ; I , ,,Ipol , ; : . , `141'. , 1 , , ao9 _ . 1 - - . , , f • R~ 236 111111111/~
- SIA to ~ ~ T.. 19 8.05 11.21 34.0 ED Wetland 12100 12.3 15.4 12.3 15.4 , , , + ~ ~ - - , ~ i , / ~ r , , ` , _ _ P~ _ 1, I ~ : 101• ~ ~ ® 146 \ , S , ~ 11 Ip y i 1 , _ 1 ~ V•23~a, ~ ~ 1'I- 249 ~ u ~ ~ ~ ~ ~ ~~1~~~ ~j O ~,~I~~
a~ r 20 13J8 16,84 49.5 ED Wetland 24100 2414 30,fi 24.4 30.6 ~ - 1 = 1 , , , - ` ~ iya ' _ T -q ~ ;
145 ~ _ ' `~i~ .1, ! . J I I, I - ' :L , I ~ / 14'0. - l i J 7 Fa , 1215 1 1 ~ ~ `L 1 ~ T'~ n t ~ I 1233 2~ 238 t ` ~ ~ _ ! ®,O~ O~ ~,P i i I 1216 ,211 'I I I 1 1 1 I}, ' ( Iv I , 1. ~ N 243, \ • ~ s
w_~` r` . ~ - ,144.. / / ` 213 / THE INFORMATION CONTAINED IN THIS REPORT AND ON TIC PLANS IS PRELIMINARY IN NATl~2E ~ , _ . I 218 ~ 2 q 2~0 221 ~ 2~2 22~r 1~4 22~ 2~f~ 427'1 ~ 1 232 } ~ _ ° - ~ ~ r l I ~ ~ I I u1, I' I 1 l'' I ~ it 22~i-1229 12 ~31 1 ' t ~ ~ 2~ A , ~ Q
_ . / , 1_ . / t ; 212 , : ; AND SUBJECT TO CHANGE AS THE DESIGN OF TIC PROJECT PRO~G~RE55ES. THE DE1/IGE TYPE ~ . _ ~ , ~ 4' ; _ - - ° 1. ; ; : , / ; ` ~ ` ~ -r43 _ , - . ~ ~ / ~ ~ ~ 44 241 ~ ~ ~ ~ ~ ~ ' ~
t LOCATION, SIZE, OUTLET STRUCTURE, WATER SURFACE ELEVATIONS, DRAINAIGE AREAS, AND IMPERVIOUS 4a~' ' 200 ` `^I : o' --200 ~ 4 ~ ~ : , I - -R-~--y ' ' M~ X111 r 11 -
_ ~ , i 1 I ~ I' ~ I l ~ , I I _ 1 F
~JRFAGE AREAS ARE ALL Sl1B.~GT TO CHANGE. THE FINAI. DE51GN OF EACH DEVICE WILL COMPLY _ _ , , , , , ' t , ~ . I , , , , ~ , . - 'fi ~ , ~ 'f , .
I mop WITH ALL APMICABLE LOCAL, STATE AND ffDERAL REGULATIONS. t s

A CLUSTER UN I T DEVELOPMENT SCALE: I~=200 REVISION RI CITY STAFF REVIEW 02-06-2008

OVERALL FREL I M I NARY PRIEST,CRAv-EN- AsSOCIATES,INC,
R I VER TONNE DOTE: AUGUST 2, 2001
LAND USE CONSULTANTS PLANNERS / LANDSCAPE DESIGNERS 1 SURVEYORS / ENGINEERS s AN 3803 - B Computer Drive Suite 104 Raleigh, N.C. 27609. Phone [phone]. Fax [phone]. Email [e-mail]
E BUFFALOE PARK LLG RALEIGH NORTH CAROLINA PROJECT. 0011 STORMHATER MANA&EMEN T-- -PL-AN
F\LAND PR01ECT5\MACGRECOR DEVELOPMENT\2005-002, 001 MACGREWR - RIVER T"E - RALEIGH\DWG\PRELIMINARY - RALEICI\2ND SUBMITTAL\ PRE-2005002-15-514MP-13EN, D W, Feb 27, 2008 7:05 PM ,DRAM BY: BEN PRELIMINARY NOT-RELEASED FOR CONSTRUCTION