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IVIL ENGINEERING•PROJECT MANAGE MERCER DESIGN GROUP, JAGEMEN
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CIVIL ENGINEERING-PROJECT MAN McMAHAN SURVEYING, w ~ 0
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SURVEYOR WEAVERVILLE, N BEFORE YOU DKdI
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~ ~ 1520 UNE BEARING DISTANCE t~
i ; 11 ~ ZR~3 Lt N 60'5144 E 64.20 ~ q Q
la ~ ~ ~ 20 ~ L2 S 6T52 01 E 188.31 ° ~ ~ o
~ KE i ~ ` A, A N N ~ 10~ L3 S 63'02 49 E 91.58 ~ ~ KEN ETH t~ YInLSO , JR. ~ F ,
O OP's O L4 S 38'07 25 E 178.43 I j 190/834 ((E ~i1~' . YM ~ L5 S 11' 13 55 E 129.19
~ l p ~ ~ 2 t~ ~ . 3 L6 S 2T33 07 E 115.82 ~
~ 522 - 15 ~ i MACK BOONE L7 S 3327 22 E 82.78 ° .E x ,,y3 , ~ ~ ,l~ 120/552 L8 S 4107 07
\ 1 N:7a5.eoo ~ J: 9 ~,1~ .g1, ~ . (3 E 57.21 ~ 5 ~ ~ ~aseoo ~ b A2 ~1` ~ L9 S 4T32 27 E 93.28 ti
211•' , 14 HICKORY y , ~ L10 S 00'04 55 E 200.44' ~ /
' 1 23 Ik 1352 1 ,Ip ~ L11 5 11'30 54 W 115.85
a 1~, y ? ; Li2 S 29'3315 W 187x1 r s
Qa ~ ~ L13 S 21'41 45 W 183.94 ~ ~~1 ~ \ ~ L14 S 14 01 33 W 113.45 Z
357 1525 ~~1 L15 N 0747 58 W 204.92 ~
1354 - 152 0 . 537 ~ y < / L16 N 08'40 53 W 97.61 ~
~ '0 1 7 o ~ w 35 0 . 2 L17 N 23'40 38 W 178.61 ~ u; t° % %r, L18 N 18'05 23 W 141.97 m
I p 1f~09 1524 r 3 ~ , ~ ~ s 13 WHfTE OAK L19 N i ' ~ ~ • 5 2308 E 129.41 ~
~ < L20 N 09'29'09 E 187.63 \
r N i ~ ,p ~O 356 S o 9 r- . 0 ' J? l2t N OT07 39 E 250.89 N
I - i ~ 1353 .03 ,57 ~ g i I - 50 LEGEND ~ ~ L22 N 10'39 31 E 71.7 O 2 s - L23 N 103 20 W 59.54
I 1609 30 .02 ! 6 ~ i J , 4-03 l i'~ s~ l24 N 33 25 W 53.32 5
~ 1355 , 354 ~ i i ~ ~ f ~ ~ ~ / L25 N 2723 45 W 179.72 ~ F •r~ L28 S 4532 36 W 186.55
I ; I i ~ 1551 0 ~ i , I ~ ~ 9 C1 ....................~......5/8 REE~1R UNLESS OTHERWISE LESS OTHERWISE NOTED (FOUND) ~ L27 S 48'36 58 W 111.77'
~ 1 ~ i r • ~n • L28 S 80'28 50 W 47 46 ~ aES (SEh ~ Z
I ~ 0 153 MOUND OF STONIs (sEh ! p ~ ~ r. ~ ~ ~ o i ~ ~ 0 ...........................3/4 IRON PIPE (FOUND) G ~ ~ ~ • L29 S 5742 36 W 52.76 (FOUND)
~ v ? ~ 0 0 15 ,q 541 0 . i~ ~ ~ p m L30 S 374918 W 78.08 (FOUND) N it l31 S 2550 54 W 42.98 ,
'o ~ • ~ 609 ' 16 ~ ~ 1, ..i 0••••••••••••••••••••'•'•'•• t/2 IRON PIPE (FOUND) 4 ~ i \ 't ? I / ! ~ ~ 1 ~ a TREE (SPECIES AND DIAMETER A 4ND DIAMETER AS NOTED) • ~ p, ~ L32 S 1$'45 45 W 56.30
• ~ r ~ ~ 160 0 ~ 1. ` 154 p Q FENCE POST 24' OAK S'iUMP MACK JR. L33 S 18'3410 W 50.57 ,~??nuu?tiry~
• ~ ~ • - - L34 S 26'4810 W 36.51 ~ ~'4,
~ 1535 i 1 x: ~.eoo 0'....'...' .................1/2' REBAR WRH I.D. CAP (SEl .4 / ~ 152 H: I.D. CAP (SET} %~i MARKED 14 WHRE OAK 135/259, TRACT II • ~ '-w • 24' OAK SNMP h: z6teoo L35 S 34'24 24 W 99.82 ~
• ~ 0 UNMARKED POINT ~ 31623 J ~ o f ~ N, ~ L36 S 3T54 31 W 55.44 : D L3 S 28'32 42 W 50.43 : o a
~ ~ I UTILITY POLE WITH OVERHEAD LII ~ i IH OVERHEAD LINES _ L38 S 1535 37 W 63.96 °D `.~~t
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1 ~ ~ ,I~I I~I, I~I ~ 3 5 ; 1 iv 1538 ~ ~ ~ ~ RIDGE
~ I ' ~ B 5~ - 'I I' 'I I' 'I i' ~ ' 2 i I .22 '6 ( ( ~ ~ e 1 MARKED 30 WHITE OAK ~ ~ '
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/ St ~ I 5 ~ 15 1 15f 0 sc ~ E I ~ ~i/ /r, • ~i
~ q r 1530 • 10° HICKORY 1 2 BLACK GUM,
~ / 'a I o M 0 . 2 S ~ 155 ~ : ~ TAMMIE YOUNG ~ d ~ t - r ~i~ NG 59.08 AC.
~ ~ 1530 D.B.287/69Ei \ / ..1541 1540 P.B. 4 821 TRACT 6 16 ~ 107 499, 124 317 do 195 469 i ~ N ~ _ ~ ~ N ~
\ 00 ~ 1 % 1548 r / t 1609 i f ACT 6 e'~, ~ , .I N ~ r/ W
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MOl6VD OF STONES (SET) IN • ~ MARKED 24 RED OAK • = Q, HOLLOW POPLAR STUMP AT W
HEAD OF HOLLOW ~ 3 ~ G~
E GINEER'S NOTES: o • ~ ~ d d ~ z ~ ao
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1. THE ENGINEER HAS MADE DILIGENT ATTEMPTS TO LOCATE EXISTING UTILITIES. ~ " IS THE CONTRACTORS RESPONSIBILITY TO FlELD VERIFY THE • ~ Z • 36 POPLAR ~ ~ h Q _ a0 c y V U ~p~rm
LOCATIONS OF ALL UTILITIES PRIOR TO CONSTRUCTION AND TO NOTE ANY CONFJC'S. ANY DAMAGE TO UTILITIES INCURRED DURING CONSTRUCTION IS W Z a: I I I
THE RESPONSI~UTY OF THE CONTRACTOR AND IS TO BE REPAIRED IN A TIMELY MAtiNER AND AT THE CONTRACTOR'S EXPENSE. CALL CAROLINA
ONE-CALL AT LEAST 48 HOURS PRIOR TO DIGGING EXCLUDES WEEKENDS AND HOLIDAYS) AT 1-800-632-4949. v ~ r tp~~
2. THESE PLANS WERE PREPARED BY: MERCER DESIGN GROUP, PC, 113 MAIN ST. f'.0. BOX 1516, WEAVERVILLE NORTH CAROLINA 28787• PHONE 828 12 DEAD LOCUST ~ N m a,
~ ) 645-7088, FAX [phone]; CONTACT: MARVIN MERCER, P.E. ~ ~OGOONO q L.~I G~ N Z v
~ w.E. HILL x , m ..ti w ~ i""r X W C m
3. THE EXISTING TOPOGRAPHIC MAPPING FOR THIS PLAN WAS PROVIDED BY FlELD SURVEY BY MCMAHAN do ASSOCIATES, PA LAND SURVEYORS ON OR ~ ) . 2 ,v ~ 90/122 ai O J p X ~
ABOUT AUGUST OF 2004. RIGHT-OF-WAYS AND PROPERTY LINES WERE OBTAINED FROM FlELD SURVEY DATA. x \ W mSd~ ~ n w~u ~ W
• ~ • yi z o Z ~ MARKED 24 RED OAK ~ 1,`'
4. ALL CONSTRUCTION ITEMS CONTAINED IN THIS DESIGN PACKAGE SHALL BE PERFORMED BY A N.C. LICENSED CONTRACTOR AND SHALL BE J '
CONSTRUCTED IN STRICT ACCORDANCE WITH APPLICABLE N.C. BUILDING CODE. ~ oMauno til ~ W
5. NO PORTION OF THE PROJECT SITE LIES WITHIN REGULATED FLOOD ZONE AS DETERMINED BY FEMA. a _ . _ . . ~ • ~ • - 11 • IrARKED 24' RED oAK a
• . ~ ~ ! ~ ~l _ . ~ ~ I f ~ F.I
6. IT IS ANTICIPATED THAT CUT AND FTLL VOLUMES WILL BE BALANCED ON SITE. ANY BORROW SOIL, IF REQUIRED SHALL BE OBTAINED FROM ~ nano r , it ~ •
PERMITTED SITES ONLY. IF NECESSARY, THE S~LI~IQB SHALL SUBMIT THE PERMIT NUMBER OF THE BORROW SITE TO THE NCDENR EROSION ' r 1? ~ ~ a
~QNTROL OFFlCE. O' • .N R Z ~ ~ = Q-
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7. THE SHALL MAKE ALL EXCAVATIONS IN ACCORDANCE WITH THE RULES AND REGULATIONS PROMULGA D TE BY THE DEPARTMENT OF LABOR, OCCUPA110N SAFETY AND HEALTH REGULATIONS FOR CONSTRUC110N. THE CONTRACTOR SHALL FURNISH, PUT IN PLACE, AND MAINTAIN SUCH ~ +1 ~ • ~ii Q
SHEETING, BRACING, ETC. AS MAY BE NECESSARY TO SUPPORT THE SIDES OF THE EXCAVATION AND TO PREVENT ANY MOVEMENT OF EARTH WHICH MAPLE CL s11 ti U 81
COULD IN ANY WAY DIMINISH THE WIDTH OF THE EXCAVATION TO LESS THAN THAT NECESSARY FOR PROPER CONSTRUCTION, OR COULD OTHERWISE WARREN C. ANDERS all 3 III
INJURE OR DELAY THE WORK, OR ENDANGER ADJACENT STRUCTURES, ROADS, UTILITIES, OR OTHER IMPROVEMENT. 254/310 ~ 1~ ' D; U ~1 . N ~ ~ '
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8. ALL CUT AND FlLL SLOPES SHALL HAVE A MAXIMUM SLOPE OF 2 TO 1. ~ ~ _.i
316.4 i ° ~ Ul _
9. THE MADISON COUNTY PIN NUMBER FOR THIS PROPERTY IS 9758-94-5158. THE OYMNER/DEVELOPER OF THIS PROPERTY IS MR BERNIE EDWARDS. N 81'37'49' X0.90' vI w, ~ .
10. THE LIMITS OF DISTURBANCE HAVE BEEN SHOWN ON THE PLAN. THE TOTAL AREA TO BE DISTURBED FOR THIS PROJECT I . 0 ACR S 0 3 ES. b 0 o Q n rK W
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11. THE ESTIMATED COMPLETION TIME OF THIS PROJECT IS FEBRUARY OF 2085. Z
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12. THE PROPERTY IS LOCATED IN THE MARS HILL TOWNSHIP. ' SEE SITE PLAN . .J
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I, BO@(~ C. McMAHAN CERTIFY TIiAT THIS PIAT WAS THIS PLAT WAS DRAWN AND 11II~ Q Q
UNDER MY DIRECT SUPERVISION FROM AN ACTUAL SURVEY MADE L SURVE'f MADE UNDER 3r~ 16 PRNATE R/W
MY SUPERVISION, DEED DEa"'CRIPTION RECORDED M DEED BOOK PAGE PU1T , PIAT BOOK ,PAGE ;THAT THE BOUN IN DEED BOOK R SEE 199/766 0 Z ~1 . J.~ w
NOT SURVEYED ARE CLFi1RLY INDICATED AS DRAWN FROM INFORM THAT THE BOUNDARIES ~,i° IN FROM INFORMATION ~ti
M DEED BOOK ,PAGE ;THAT THE RATK) OF PRECI r ro N0. 4 T01~YNSHIP RATIO OF PRECISION AS h
CALCULATED 15 1: 10.DL':1 ;THAT THIS PU1T WAS PREPARED r r LL. wAS PREPARED IN y~, MADISON COUNTY
ACCORDANCE WITH G.S. 47-30 AS AMENDED. srrvE wwAMS NORTH CAROLINA J
WRNESS MY ORIGINAL SIGNATURE, REGISTRATION NUMBER AND SE THIS,].QjKDAY OF FEBRUARY , A.D., ~2OQ4,. NUMBER AND SEAL Z W ~ 199/768 & 278/318 ~ Q
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SURVEYOR: m o ,ao zao ,oo eoo W / z ~
REGISTRATION NUMBER: _ 24Z;~ ti o Z Z ~ ~
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~ 1 inch = 200 ft
FN.ED FOR REGISTRATION ON THE _ DAY OF , 2 AT_ O'CLOCK_ M., AND RECORDED IN 200_ ~ ' ~ ~ ~ McMAI~tAN & ASSOCIATES P.A.
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REGISTER OF DEEDS . MADISON Cl yeD>.soN coutvrr s WEAVERVILLE N.C. 28787
BY DEPUTY a ? ? DATE : !'EMMU 10 ' c3`?? '8004 828-645-55 54 0
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1 SAND o, I NOTE: ALL CMP PIPE, FABRICATION I 1
11 APPURTENANCES SHALL BE HOT DIP ~ I s iS
I 1 0 NI ED AND OR FULLY COATED WITH " 1 I ° ~ caLVA z / 1 °o LIMITS OF DAM CONSTRUC110N
1 1 1 \ COAL TAR EPOXY OR EQUAL) ON ALL (I ( I \ (LAND DISTURBANCE)
SLUICE GATE HANDWHEEI MOOR Y §ILT FEN G T, EXPOSEd SURFACES. I TOTAL AREA 0.3 ACRES
I \ \ 1 1 1 \ \
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1 \ 1 \ 1 1 \ 2 O
1 1 ~ ~ \ \ ~ ~ ~
1 1 \ ro j \ \ \ ~ ~ ~
SECONDARY DISCHARGE 1 \ BARS AT 6" E.W. GRATE EL. 496.0 I \ \ - . ~ ~ \
~ ~ I ~ t• WELDED AT ALL INTERSECTIONS \ ~ <°.~r:j'•: \ ~ .°at;- ~
\ 1 HOT-DIP GALV. AFTER FABRICATION) ~ • ( ~ .Mr Z
GRILL ASSY. 1 ~ ~`''•:y~' \ OR APPROVED MANUFACTURED .s.' ~ ~ o \ ~'~~..Y 1
24 VE 1 ~ 1 ~ 5
••.t . A GE ~'r; ~ . " " " PRIMARY DISCH R " Fa 1 . rS • ` ~ ~ GRAPHIC SCALE W ~f•~i \
2 X4 Xt/4 ANGLE (GRILL FRAME) 24 CULVERT EL. 481b„ \ T.O.P. EL. 494.0
\ \ ' ~ 498 0
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5 BAR SPACER ~ > ` an ; ~ ~ \ " ~ ."15:1 ' ~ > \ \ ' 1 inch = 20 R
F'. WELDED TO 24 CMP 0- ; ~ ` , ENERGY DISIPATOR 4a • • ~ ~ ~ r W R 497.0
GALV.AFTER BENDING ~ ~ \ ( ) ~ 12 WIDE X 30 LONG ~ ~ . ; , ~ ~ ~ ) ~ 11111111 ~ ( ~~p I1~j~
•~n•t.r... ) ~ a - r j' ` ` ,A~ \ \ ,
~ ~ ff.'s ~ ~ may. I ,.~5 t y J.• \ \ \ ` 0 : t~ , ~ r ~V A .off /
~ ~ ; ~ - o MODULAR UNIT RETI~INING/ENDWALL p, t , r t ~ 1 , . \ V A J~ W; H.
48 GALV. CMP OVERFLOW RISER o (SEE DETAILS SHEET 2 OF 2} \ ~ ro• •=,,;Lti~• ,.L
TEMPORARY SILT FENCING ~ ~ ro ~ ; '
\ ~ ~ ~ \ 0 ~ tjl.1~. hVW.\1~-. 492.0 \ \ ~ ~
24" GALV. CMP INTAKE RISER GATE ACTUATOR EXENSION ° ~ °j ~o • a • ~ , \ °i . ' ' ~ j ~ \ \ \ I • o ~ y j ~ •~tiR~bl ~ CFIARGE OLD ~YAT~} EL X9410A
- WITH INTERMEDIATE SUPPORTS ~`h;•~~:•" C - ~ REFERENCE POINT 'X' ~ \ ~ o ' - °p ~o - I~ AS RECOMMENDED BY ~ , ~ • , ~ ~ o o ro , ' o o ro , ` ; C, A~1(~'q~SCFMRGE 25YR~ST EL. X96.0
ROPERTY LIN POINT \ ~ ~ ' °J ~ GATE MANUFACTURER (P E ) ~ : ; ' ~ t N , ' •~,v1 \ t ~ ~ Via. Af~,S~I ~ \
\ ~ rn r• rn (WELD TO EXTERIOR OF SEE GENERAL PLAN SHEET C-1 ~ ~ ~ ;-~,:.:.r. o,y, ~ y - \ ~ b,° ~ ~ ~ ~ \ ~ z ~ ~ N O
~ . CMP RISER) ~ ;
\ ` ~ 3 PERFORATION - 30% FREE \ : . ~ > ; ' ~ , ~ ~ A 1il
SURFACE OPENING 00 C ~ ~ , ~ '
00 00 a w ~ \ 00 ~ Y °:o::~. ~ . '
00 00 A o rn~ t• o • :a=te rn ~
24 X2 CMP TEE W{TH 00 00 ~ ~ > , ~ '7r .i:iC•. ` 1
RIVETED COUPLING B D ~ t ' ~ i `rt~A ~4Uk~ DER 94c FTC ~ ~ \ ~
t ~ ~ ~VbLU APRR ~ 1 f~ ~ 1 i ~ r' >~A ~ ~ ~
24 ALUMINUM DRAIN GATE ° ~`'t ' , ~ C ! ` 7 WASHED ROCK INFILL i~ X5,5 ~
0 0 ~ „ (WITH CMP SPIGOT) eaTEd ~ ~ , TO CMP TEE *,r • , • ~ ~ ~ r•~ } ; ~ ~ s _ _ - W r ;
24 CMP d ARGE ~ ~ \ ~ a WATERMAN AC-31 (OR EQUAL) ,
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r • , TOP OF BASE SLAB , ~ ~ ~ ` r' j 1 j i , ~ 7~:';~., ~`+~.;:~.:v' '?i. \ ~ ice`
r c+r • • co ELEV. 481.75 ; ~ ~ \ . ~ . , ~ ~ 1 ~ Z 0 v
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W N ~ , ~V. R : ; ~ 4 X4 X 5/16 (6 LONG) GALV. STL ~ , •::w..::,,
. ~ : ~ ~ ~ • ~ ~ ANCHOR TABS WELDED TO 'CMP • ~ ~ ~I / 0
6X6 SQ. PRECAST CONC. BASE • t:.: " RISER;(4) REQUIRED MIN. ~M:•;~,. ~•w•ss~s~sri.~r•• / / i W O J Q X L
PAD WITH (4) 1 /2 GALV. J-BOLT ~ / W ~
FOR RISER ANCHORS ~ 4 0 8" E.W.
" 6.00 _ a
24 CMP INV. EL. 482.0 j H• ~r • . C ,.r r4 y r 5
'r ..1 b.,..;:. . 510 ~ W
ram s •,:j.. :L^I ~~•F~ '.'~'vi K r • t ' . Y J.-
" SCALE 1 20' SCALE: 1 = 2 t.•'~••:~~~yl ~;'.~•^~S`~+t" •.'s :iiy.""s`.'r• :~•~s•v. e•,a• ~,.4~•'vrS~a. H
r1P..•~ ~l h. n w •Y• ••N~ ~rr Va.. Pl, ry~~ (i'ti.~fb.J}1' r
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UNDISTURBED EARTH PRO OSED 10' GRAVEL R AD-, 04 NOTE ALL DAM EMBANKM NT FILL SPILLWAY L. 499.0 a
w,. ~ 54 Z PIPE GRATE (S ILAR
; ~ ~ PIPE G • ~ ~ APP VED BY THE ENGIN R. PLACE 50 a SEC NDARY DISCHARGE ~ o FLOW
TRENCH WALL AN MPACT IN 8 LIFT TO 98% OF 50
500 MAX. DRY DENSITY. RIMARY DISCHARGE u,
. 50 J W Q
CMP PIPE "r;> : .-FLOW U~ SE DETAILS THIS SHEE
49 8 • TRENCH WALL ~ - > • PROPO ED GRADE 4X4 RIP-RA PAD 48 Z
i. PAD ~ ~ ~ ' Q
®2:1 AX S OPE 4 • ! ~ ; i~~ i::'~i~' 4 fi _ J
' ~ , ' ' ANTI-SEEP OLLAR 0. )LLAR -1
4 UNDISTURBED EARTH ` ~ 44 - 9 ,'I.....I " T
, ' • 24 CM RISER 1 ~
f 492 12 ~ ~-4 4 2
RETAININ /END WALL
PLAN UEW 490 ~ti Q ; o - 490 Q
12" „ ;u 1<;. ~:~I;:~,;::;:~,, , 4 L.F PERFORATED
1 z 488 488
UNDISTURBED w s
TRENCH WALL 4 6 EARTH 4 - 86
• 18' CMP OVERFLO CULVERT CULVERT ~ ~ EX ST. CREEK GRADE SEE DETAI THIS SHEET . • Z
„ BOTH CULVE TS) ..+12 4 4 OD _ - 4 ,.C~. ~
~ ,1• .1; r 'l~li . ~ ~ 1 1 ,w.~., wf..•:: wi+' • I' j 1~~ i ! 1 ! ;~I~u l~~~l~~rll ~rf rl y/~~ .r. t~..~~i~i..~.~•i":'• r. ,fir I1' ~l ~L~- i~ l r i ,1~ , ~1 li i,`r,, ~li ~ 'r l~r' ,ti„, ~ ~ !r~ i. 1 r1 ~ ~ fr r t r r; ~-r 4~,i ~r `t' Q r.,' , :i~ r', , 1. t r~rj• , rrrfr,•~I1' ~r.'r' ~l'l, 'Ir,~'• J ~~1 ;i;i '!iI !r;r~r ~r~,:l,1~r, ; r; ~1, , ~ r ~ ~
wii.i' w,,•.,: wee ~ rl:i L~.~~ 1.~ ~i ~~.1 1 1 Ir/ 'I~ r ~"rT. I'-I~ r. ~ 1 '1,~ 4
L.F.~D 2.5~ U F a-
4 ~ . i~•• 80 L.F. 1.25X • ; POP. GRADE z ~ 4 oZ
,,~v~ - a;. 2 CMP CULVERT oQ -
478 s. . INV. EL. 482.25 a ~ ~ 47 ~o

• • ~ ~ WA HED ROCK BASE A - A 476 12 WIDE X 30 LONG SEC110N _ INV. EL. 2 "CMP 482.0 24" AL MINUM SLUICE GATE 476
NOTES: 1. CONCRETE SHALL BE 3000 P.S.I. _ ~ ~ ~ ~ T~~ ~r~~ ,w _ _ • • _ . _ _ • _
_ _ ~ . . ~ HAN(l FFI RISER . .
2. REINFORCING SHALL BE No. 4 BARS ® 12" E.W. Ulz)~)I[-A IUK Ott
3. REINFORCING BARS SHALL BE DEFORMED CALCULAII NS 4UHLL -A WA 74 m 4
AND TIED TOGETHER. sCKts f -W ma ree~ (OR EQ AL) ~ Z ~ o Z ~ mo
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A NM-SEEP COLLAR DETAIL 472 470 0 0 O 470
SCALE: NTS N ~ a

FREE DRAINING GRANULAR FILL (#57 WASHED STONE OR APPROVED
MATERIAL -MIN. 12° WIDE BEHIND WALL) ENCASED IN MIRIFI 140N
FlLTER FABRIC TO PREVENT MIGRATION OF SOIL MATERIALS. REDI-ROCK TOP
BLOCK (TYP) a
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BLOCK • .
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• v REDI-ROCK / STRATAGRID 200 GEO-GRID A
• OR APPROVED EQUAL (TYP) v Z O_
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M d•• a 1 ~ v } M P~ ~ ap Blocks SECTION A-A G~
(0 (optional) P.
CUT GEO-GRID AROUND THE TWO e O COGa Z
SHEAR KEYS d•: ~ ~ ~ CONCRETE DOME d ~ ~ , • ~ d \ ~ ~ ~ TYP . \ ~ ~ ~
/ / / / 40.50"
a ~ 40.75
36.00' y 18.00' ``+~III l I I I i 111 ft~~'/
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• Q•. ~r . i/ . v v.. . 1.00' i'i Intill Soil ti
.d d ov: c, ;
Q' / • / / i t . m o? _ X coo _ ~ aNO ~ w; ~ :y an CI z;
REDI-ROCK BOTTOM • ~ = Nom. n: 5.00" ~ :w0 O ~2.•
BLOCK UNIT (TYP v e a • 36.00' '.d
~~'Q•. • G``.
• . ' 9'-6" e 6• t7 ~i ~ ~ 41 Middle Block Calculations for SRWaII
•v (TYPICAL GEOGRID LENGTH) ~ t,?ttttlllll,
• • e Retainin Wall ~ o v • .d g Q v
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//i~ as.oo• P~ ~ ~ ~
. / / i/ ~ ~ ~ A C TO X BACKFlLL SH LL BE COMpA TED 95 _ ~ o COGS ~ ~ ~ O o
STANDARD PROCTOR RV 9 LIFTS 1YP ( ) Pa ~ = N N ~
. 5 -0 4 !HARD-PERFORATED PYC PIPE ENCASED IN (EXISTING SITE MATERIAL OR APPROVED 12 X 12 CROSS SECTION OF #57 WASHED MATERIAL COG: N w
R FABRIC. INSTALL ) STONE WRAPPED IN fILTE a ~
PIPE WITH MINIMUM 1% SLOPE TO DAYLIGHT Free Standing ~
5' x 1' COMPACTED AGGREGA (FLEXIBLE PIPE IS NOT ACCEPTABLE) LEVELING PAD AND RETAINING Wan Blocks 27' y ~ O t6. c ° a 3
WALL FOOTING (TYP) EXTEND GEOGRID TO FRONT OF nflll Soil tr a u m u
REDI-ROCK BLOCK (TYP} ~e.ao' m° m m v o
PRIOR TO THE COMMENCEMENT OF ANY WORK, THE BASE SOIL MUST BE TESTED NOTI_: ff the Freestanding Porno estanding Portion of the Wall is to be Used as a Traffic Guard
AND IT MUST BE VERIFIED IN WRITING BY THE GEOTECHNICAL ENGINEER THAT A The Freestanding Biodc Wall Ml g Biodc Wall MUST BE Equipped Wilh a Restraint Cable System. 3•~'
A SOIL BEARING CAPACITY OF 2,500 P.S.F. OR GREATER IS PRESENT. IF THIS This Would Be A Special Conditi 3s.6• X coo x ~ Special Condition And Would Require Coordination Wdh The Engineer W
BASE SOIL BEARING CAPACTY DOES NOT INITIALLY EXIST, THE BASE SOIL MUST To Provide A Separate Design. BE REMEDUITED AND AMMENDED BASED UPON THE RECOMMENDATK)N OF THE e Des ~ ~ D. ~
0 AS TO ACHEIVE THE: 2 500 P.S.F. MINIMUM. REQUIREMENT. ' ?lease Contact The Engineer 4 GEOTECHNICAL ENGINEER, S , t The Engineer immediately if This Condition Occurs Or Is Desired. P W " ' ~ Ono
28 Middle Block Calculations for SRWaII v ~ ,n
~ x ;N
• ~ TYPICAL REINFORCED REDI-ROCK WALL SECTION ~ ~ ~ zam a
~ s STEPS s ~ ~ P IN WALL INSTALLATION ~ 3 ~ 4~1 A 21 BLOCK - z ~ I STE S . aF a _
4 0 TO 13 O" IN ®VERALL HEIGHT , PERS! PERSPECTIVE VIEW ~ C~.NTER of ~>'RAVITY GEOMETRY v ~ o n n U Z IY l l o
v~~s
_ ~ M co ~ a ~ v_ a ~~Il~
t\p~NN
STEEL OR STEEL OR WOOD POST O ao a0 q ~ V ~z v
WIRE FA • PIPE DIA. WIRE FABRIC 0 Z . b ~
V FILTER I I Q!, XJpXV
FILTER FABRIC ~ W m r° m ~ w Sati E
RIP-RAP CUTLET PROTECTIDN (ENERGY DISSIPATOR) (a U E ~ x ow s~~
Apron ~ M =N n.~ AU. EROSION MEASURES ARE TO BE PERFORMED IN STRICT ACCORDANCE WITH u ~ a a F M =N RE IREMENTS OF THE STATE
are d50 Apron Vldth Aron a ~ a~ Tallwater Dlsch g Outlet en th dMax p . ~ QU OF NOTHCAROUNA SEDIMENT CONTROL POUCIES. THE ~-~F z
r Rlp Rap L g hkkness ~ 3a ~ Condltlon Q10y ial~eter (La) JJJ ~ M E Slze (E On JJJJ•J~ ° ~ . AQ p~ EXISTING FOLLOWING CONSTRUCTION SEQUENCE SHALL BE COMPILED WITH FOR ALL WORK. ~ W a,~ E~ GROta~D a
APr' ~JJiyJ~ RIPRAP LINE 1. OBTAIN LAND-DISTRIBUTING PERMITS. >
Outlet) a
2. INSTALL ALL EROSION CONTROL MEASURES AS REQUIRED BY NCDENR. a
A MIN. 57.4 cts 24" 1 S" 30' 26' 23" 30" z_
4~ A 3. OBTAIN CERTIFlCAIE OF COMPUANCE THROUGH ON-SITE INSPECTION BY A J 4~ ANCHOR FABRIC REPRESENTATIVE OF NCDENR. ~
A as SHOWN a
TYPICAL CONC. S ~ E~IQN 4. PROCEED WITH CLEARING AND GRUBBING AND FlLUNG OPERATIONS.
FLARED END SECTION ,
5. AN MU CH ~ SEED D L DENUDED AREA WITHIN 15 WORKDAYS AFTER FINISH GRADES ARE o
' VARIABLE AS DIRECTED B ISOMETRIC VIE1K TOP AND IS DIRECTED BY THE ENGINEER (10' MaX.> ESTABUSHED. SEED AND SOIL AMENDMENTS SHALL BE PLACED ON A PREPARED z
BOTT~I ~ SEEDBED AT THE FOLLOWING RATES PER ACRE: OM ~
STRAND ND UME 4,000 LBS. _
MIN. 10 A A GA„ TYP. 10 FERIIUZER (10-10-10} 1,000 LBS. TYP. KY-31 FESCUE -I ~ 100 LBS. ~
STAY WIRES, AN STRAW MULCH 60- W a WIRES, ANCHOR WIRE FABRIC TO 80 BALES V ~
12' SPACIWG WC .PACING WOOD POST WITH MIN. 4 SECURELY FOR WINTER SEEDING ADD TO THE ABOVE: U Z
MIN. 14 GA, FE l4 GA, FENCING STAPLES PER POST ANCHOR RYE GRAIN 10 LBS. ~ FABRIC TO CROWN VETCH 15 - 20 LBS.
0 WIRE WITH Q
n v° W cn W ~ WIRE TIES FOR ALL SLOPES 2 TO 1 OR STEEPER ADD TO THE ABOVE: ..I SERICEA LESPEDEZA 40 LBS. ...J
W 3 ~ IF HYDRO SEEDING IS USED, WOOD CEIlULOSE MAY BE SUBSTITUTED FOR STRAW
w = J MULCH AT THE RATE OF 1,000 LBS. PER ACRE. ~
do = P1PE DVI ~ ~ Q Q
La =APRON LENGTH ~ W =APRON WIDTH 6. IT iS RECOMMENDED FOR CONTRACTOR TO STOCKPILE TOPSOIL AT ASSIST IN ~ ~
3 X PIPE A MIN GRASSING. ~ W Q
d 'APRON DEPTH PLAN d Q ~F 7, IT IS ANTICIPATED THAT THIS PROJECT WILL BE COMPLETED EXPEDITIOUSLY,
A ~ MAX, WIRE FILTER FABRIC TO BE y t w THEREFORE NEGATING ANY EFFECT THAT TEhPORARY SEEDING WOULD HAVE ON ~ ~
~ ° n FABRIC MESH ~ 3 a l]PENING SIZE POLYPROPYLENE NYLON, a ~ °a POLYESTER OR POLY y PROJECT. THE PERMANENT SEEDING SPECIFlCATION SHOWN ON THE PLAN SHOULD BE W ~
La = 36 SQ. IN. ETHYLENE YARN OF ADEQUATE. ~
SLOPE 0 X ~pyy MANUFACTURER TO BE W APPROVED BY ENGINEER 8. MAINTAIN SOIL EROSION CONTROL MEASURES AND STABILIZE THESE AREAS.
ELF Z
ELEVATION ~ Q 9. DO NOT REMOVE SOIL EROSION CONTROL MEASURES UNTII PERMANENT GROUND COVER z w
N TESL IS ESTABLISHED. o ~
1. THE CONTRACTOR SHALL MAINTI SHALL MAINTAIN ALL SILT FENCING BY REMOVING AND ~ F W
DISPOSING OF SILT ACCIIMULAT LT ACCUMULATIONS AS DIRECTED BY THE ENGINEER, 10. REQUEST FlNAL APPROVAL BY NCDENR. z c~ 'HALL BE REPLACED WHEN IT HAS DETERIORATED TO SUCH V
d FILTER FABRIC SHALL BE REPL SECTION A-A EXTENT TWAT IT REDl1CES THE TH F S THE SIT NCE. N z REDUCES E E FECTIVENE S OF L FE 11. IF COMP T1 A - ~
NOTES; LE ON D lE GOES BEYOND ENTER CONTRACTOR SHALL MAINTAIN o a HALL HAVE A MINIMUM TENSILE STRENGTH (C 20% MAX. TEMPORARY GROUND COVER AS REQUIRED. ~ ~
SEE APPROPRIATE SCHEDULE FOR DIMENSIONS Flter blanket 2. FILTER FABRIC SHALL HAVE A ELONGATION) OF 301bs/LIN, IN„ 301bs/LIN, IN„ WIRE FABRIC REQUIRED. ~ O
1. La is the length of the riprap apron. 3. IF EXTRA STRENGTH FABRIC IS ;TH FABRIC IS UTILIZED (MIN, TENSILE STRENGTH = 12. THE CONTRACTOR SHALL CONTROL ALL "DUST" BY PERIODIC WATERING AND SHALL
2, d = 1.5 times the moximum stone diameter but 50 tbs/LIN, IN, ~ MAX. 20X EL[ MAX. 20% ELONGATION>, WIRE FABRIC IS OPTIONAL, PROVIDE ACCESS AT ALL 11MES FOR PROPERTY OWNERS WITHIN THE PROJECT AREA
....1 1..... LL..... G~ uAViuuu encT co~rnr_ t rr
IIVI IGJ.J Mull v F-1"^A IV11 U uJ i .lffF-Atw o U U_ V U U-` ANU F'UK tMtKIR--NGT WHIULES.
3. A filter blanket or filter fabric should be installed between the riprap and soil foundation. 4. POSTS SHALL BE 4' DIA, PINE, 4 DIA, PINE 2 DIA, OAK OR 1.33 lb/LF STEEL 0
UNLESS OTHERWISE APPROVED SE APPROVED BY ENGINEER.
o a Z Z Nt
m o ~
PIPE OUTLET ENERGY DISSIPATOR TEMPORARY NOT TO SCALE NOT TO SCI 'DRARY SILT FENCE a m o NOT TO SCALE s t
Q.

. . m.~
, , "'1~ r a ~ a, 1 ~ a T e ~ 8 A ' Jc'e
r
a' i ~ ~ ~ 100 . 0 !0 1a0`; ZW '.X00
Cumulafive Preupitation {4.90 in) Cumulative Precipitation (5.50 fn) Cumulathre Precipitation p.00 in) m x r
' ~ .,4 ~ ~ a
5 s
4
4 ` 5 lq
3
{In) 4~) (In) 4
N x ..W.....,.. y e
2 m , , r
1 1 2
~ LL ~ ~ CONTRIBU NG BA51N~ N z
: i
~0 500 1D00 1500 ~0 500 1000 1500 ~0 500 100D ]D 1500 ~ ~ AREA = 2.08 AC. , ~ ~ 5
(Min) (Min} (Min)
~ ~x~ i ~ .2420 ' ~ ~ ~ e ¢
~ . ,.n: ~eaooo y z
A ~~uunn~
1 - SCS Runoff -10 Yr - Qp = 57.41 cfs 1 - SCS Runoff - 25 Yr - Qp =73.98 cfs 2 - SCS Runoff -100 Yr - Qp =118.71 cf 60 100 BO 100 150 m 118.71 cfs e * [ ~ ~ ~ ~ w ~ =
100 ~ - . ~ ~ "
90 90
50 80 6~ 8D a
40 ~ 70 100 aft, ~ ~ "4 -7 # ~ a ~ r i ~ ~ o
N 60 • fi0 r O N
~ 30 50 ~ Q 40 50 ~ ° 40 j 40 j ~ 20 30 ZO 30 5p • ~ ; 50 z
4 } f/1 W
~ 30
3
10 20 Z~ y R ~,~.,.ax ~ ~i O~ a V p o 0
~o ~o 0 0 0 o p
0 5 10 15 20 25 0 5 10 15 20 25 0 5 tp 15 20 Time (hrs) Time (hrs) Time ~hrs)
r ~
r~ ~ ~ TRIBUTI~ A IN MAP a ~ a a , .
HYd. 1 / vol Hgd.1 j Hyd. 1 / vol Mid. i ? Hyd. 2 ! vol Hyd. 2 • >
8 / t
N. ~,6~r ~ d& ~ 4 Z Q a L;fP ~ F Q2a~0~ C
5i
\7 W ~ o~ ~ ~
PIPE SIZING = ° z°<aty tJ a \~mNO
10-YEAR STORM (ENERGY DISSIPATOR) 25-YEAR STORM (PRIMARY DISCHARGE) 100-YEAR STORM (OVERFLOW) W fO o ao ao m
PRIMIARY DISCHARGE (10 YR STORM): PRIMARY DISCHARGE (25 YR STORM): o z Z o
TR55 DATA: TR55 DATA: TR55 DATA:
SHEET FLOW- SHEET FLOW- SHEET iLOW- GIVEN INPUT DATA: GIVEN INPUT DATA: a o ~ o ii
SHAPE CIRCULAR SHAPE CIRCULAR ~ ~ m ~ a'` E
MANNING'S n-VALUE 0.80 MANNING'S n-VALUE...................... 0.80 MANNING'S n-VALUE...................... 0.80 ...0.80 SOLVING FOR DEPTH OF FLOW SOLVING FOR DEPTH OF FLOW ~ z °•~y"
FLOW LENGTH 300 FT. FLOW LENGTH............................... 300 FT. FLOW LENGTH............................... 300 FT. 300 FT. DIAMETER 24.0000 IN DIAMETER 24.0000 IN v ~ a ~
TWO-YEAR 24-HR. PRECIP .............3.5 IN. TWO-YEAR 24-HR. PRECIP.............3.5 IN. TWO-YEAR 24-HR. PRECIP.............3.5 IN. 3.5 IN. FLOWRATE 57.400 CFS FLOWRATE 74.0000 CFS ~~.y W
LAND SLOPE 21.0 % LAND SLOPE................................. 21.0 X LAND SCOPE................................. 21.0 X 21.0 X SLOPE 1.25 FT/FT SLOPE 1.25 FT/FT ~ ~
TRAVEL TIME =33.6 MIN. TRAVEL TIME............................................... =33.8 YIN. TRAVEL TIME............................................... =33.6 IIIN. MANNING'S N 0.020 MANNING'S N 0.020
SHALLOMI CONCENTRATED FLOW- SHALLOIM CONCENTRATED FLOW- SHALLOW CONCENTRATED FLOW- COMPUTED RESULTS: COMPUTED RESULTS: Z
FLOW LENGTH 1500 FT. FLOW LENGTH............................... 1500 FT. FLOW LENGTH............................... 1500 F WATER COURSE SLOPE ....................21.0 X WATER COURSE SLOPE....................21.0 X WATER COURSE SLOPE....................21.0 ~ 1500 FT. DEPTH 9.7883 IN DEPTH 11.2883 IN o
21.0 % AREA 3.1416 FT2 AREA 3.1416 FT2 Q
SURFACE DESCRIPTION UNPAVED SURFACE DESCRIPTION.................... UNPAVED SURFACE DESCRIPTION.................... UNPAVE AVERAGE VELOCITY .........................7.39 FT/SEC AVERAGE VELOCITY.........................7.39 FT/SEC AVERAGE VELOCITY.........................7.39 FT TRAVEL TIDE =3.4 YIN. TRAVEL TIME...».............................. =3.4 WN. TRAVEL TIME............................................... UNPAVED WETTED AREA 1.2043 FT2 WETTED AREA 1.4523 FT2 Q ~
...7.39 FT/SEC WETTED PERIMETER 33.2503 IN WETTED PERIMETER 36.2749 IN ~
=3.4 MIN. PERIMETER 75.3982 IN PERIMETER 75.3982 IN o
VELOCITY 47.66 FPS VELOCITY 50.9552 FPS z fn
CHANNEL FLOW- CHANNEL FLOW- CHAtINEL FLOW- HYDRAULIC RADIUS 5.2155 IN HYDRAULIC RADIUS 5.7650 IN Z ~ Z
CROSS SECTION FLOW AREA......... 10.0 SF CROSS SECTION FLOW AREA......... 10.0 SF CROSS SECTION FLOW AREA......... 10.0 SF 10.0 SF PERCENT FULL 40.7846 X PERCENT FULL 47.03 % = O
WETTED PERIMETER 8 FT. WETTED PERIMETER 8 FT. WETTED PERIMETER 8 FT. 8 FT. FULL FLOW FLOWRATE 164.4020 CFS FULL FLOW FLOWRATE 164.4020 CFS Q J ~ F
CHANNEL SLOPE 10.OX CHANNEL SLOPE............................ 10.OX CHANNEL SLOPE............................ 10.0% 10.0% FULL FLOW VELOCITY 52.33 FPS FULL FLOW VELOCITY 52.3308 FPS W V
MANNING'S n-VALUE ......................0.040 MANNING'S n-VALUE......................0.040 MANNING'S n-VALUE......................0.040
o.oao ~ Z ~
VELOCITY 13.68 FT/SEC VELOCITY...................................... 13.68 FT/SEC VELOCITY...................................... 13.68 F FLOW LENGTH 800 FT. FLOW LENGTH............................... 800 FT. FLOW LENGTH............................... 800 FT. . 13.68 FT/SEC ~ V
800 FT. Q J
TRAVEL TIME =1.0 MIN. TRAVEL TIME............................................... =1.0 MIN. TRAVEL 71UE...............................».............. » =1.0 MIN. ~ J Q
OVERFLOW DISCHARGE (100 YR STORM): W N = U
IOTA TRAVEL TIME =38.0 UIN. TOTA TRAVEL TIME............................................. =38.0 MIN. TOTA TRAVEL TIME............................................. =38.0 YIN. GIVEN INPUT DATA:
SHAPE CIRCULAR
RUNOFF DATA: RUNOFF DATA: RUNOFF DATA: SOLVING FOR DEPTH OF FLOW ~ Q ~ Q
HYDROGRAPH TYPE SCS RUNOFF HYDROGRAPH TYPE SCS RUNOFF HYDROGRAPH TYPE SCS RU SCS RUNOFF DIAMETER 18.0000 IN 3
STORM FREQUENCY 10 YEARS STORM FREQUENCY................................ 25 YEARS STORM FREQUENCY................................ 100 YE STORM DURATION 24 HRS. STORM DURATION.................................. 24 HRS. STORM DURATION.................................. 24 HRS TOTAL PERCIPITATION 4.9 IN. TOTAL PERCIPITATION............................. 5.50 IN. TOTAL PERCIPITATION............................. 7.00 IN DRAINAGE BASIN AREA 52 ACRES DRAINAGE BASIN AREA........................... 52 ACRES DRAINAGE BASIN AREA........................... 52 ACR BASIN SLOPE 21.0% BASIN SLOPE 21.0% BASIN SLOPE 21.OX 100 YEARS FLOWRATE 45.0000 CFS•; ~ ~ Z
24 HRS. SLOPE 2.50 FT/FT > W (n
7.00 IN. MANNING'S N 0.020 _ m
21.OX RES COMPUTED RESULTS: ~ W
HYDRAULIC LENGTH 3800 FT. HYDRAULIC LENGTH............................... 2600 FT. HYDRAULIC LENGTH............................... 3800 CURVE NUMBER 65 CURVE NUMBER fi5 CURVE NUMBER 65 3800 FT. DEPTH 8.1033 IN z i;i ~
65 AREA 1.7671 FT2 0 ~ Q
DISTRIBUTION TYPE II DISTRIBUTION........................................ TYPE II DISTRIBUTION........................................ TYPE II TYPE II WETTED AREA 0.7717 FT2 ~ Z
Tc METHOD TR55 Tc METHOD.......................................... TR55 Tc METHOD.......................................... TR55 TR55 WETTED PERIMETER 26.4780 IN o z
TIME OF CONCENTRATION (Tc) ................38.0 MIN. TIME OF CONCENTRATION (Tc)................38 MIN. TIME OF CONCENTRATION (Tc)................38.0 MI ....38.0 MIN. PERIMETER 56.5487 IN o Q ~
PEAK DISCHARGE 57.4 CFS PEAK DISCHARGE.................................. 73.98 CFS PEAK DISCHARGE.................................. 118.71 118.71 CFS VELOCITY 58.4138 FPS ~ o D
HYDRAULIC RADIUS 4.1967 IN
PERCENT FULL 45.0185 X
FULL FLOW FLOWRATE 107.9573 CFS
FULL FLOW VELOCITY 61.0913 FPS o Iso
o
OVERF W = - ° z LO RATE 100YR RATE (119 cfs) 25YR RATE 74cfs z 41
= 45 cfs m
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III