SW8060808_APPROVED PLANS_20060811

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SWub�Q?
DOC TYPE
❑ CURRENT PERMIT
APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
��((
YYYYMMDD

I\.\'\ ,, \- -\. ,\ \\\\\�\\\\ LOT 30 r r1 � ' J- - ! 1 ` .
�-� -� .\ \ , ` \ } WESTPORT , _ � J / / ': ! T' d -. ; 1 1 i f
p _
1• `-1t1��,\\ \\\\\\\\ SECTION:-" ,/ ! f i1 /` , c_,'11 I _ �� I- j NOTES:
t- - � �\\ I M.S. 9- PG. 491 i - 1 1. CURBING, CROSSTIES, CAN BE USED AS WHEEL STOPS.
/. � i`....� -\ \t \� \ \ `-A \,.,\ `\\ � _ _ / / I\ \i rn .' i / � r, � � ` `- I I 1) ALL DISTANCES SHOWN ARE GROUND HORIZONTAL .
11, �\,� ` ' \ ` `. Ex. SSMH / / , f,a I (MUST BE ANCHORED DOWN) UNLE55 OTHERWISE NOTED. . ..
\ `,'_'.�.. \ \ ,� }\\��\\ Top=2Q. ' i+ `�" I 2. ALL PARKING STALL MARKINGS AND LANE ARROWS SHALL
\ 4'_'_".'.� _ �. \ I `�\\\ ` / t 1 iJ / // �.' i' • I I BE WHITE. 2) ALL DISTANCES ARE IN FEET UNLESS OTHERWISE
,�. _ . `.\ �; ;L. \ t\ i Inv.- , I / i i / i/r. i /' ? . I 1 3. ALL OTHER PAVEMENT MARKINGS, SIGNS OR OTHER TRAFFIC NOTED.
I. X\ • "� } I C / ' / - __ - \ �, `` ; ! 3 THIS PROPERTY IS IN FLOOD ZONE A &CAS
` ' '� �' '�_ \ ,\ '. - / /' / / �/ I r `- - / i LOT 29 CONTROL DEVICES SHALL CONFORM TO THE LATEST EDITION }
4 `. `.". `. `.\%�,\r , I \' 1 r /. _ \ i _ - -- - -p"vJ 1 f i , SHOWN ON FEMA FLOOD INSURANCE RATE MAP,
t �; �\ \ / / / , t -- J I 5 WESTPORT AND/OR INTERPRETATION OF THE MANUAL ON UNIFORM
:a` ';�._�' \ %." , .'� / I - 04 I / APRIMU2'IT 991ANEL N0 BASE FLOOD
295 ELEVO335 E, DETERMINED DATED
i,-• t,` m \ \\N
`, \�\�y'`�'p`�, •\ _ _ ,i I I - - f ��• 71 \ , \ � 1 SECTION 2 TRAFFIC CONTROL fJEVICES (MUTCD},
�- 4. ; / / . / / /iL'- ! \ 1 M.B. 29 PG. 491 4. NO OBSTRUCTIONS WILL BE ALLOWED ADJACENT TO A
1-'-' -, ;_, , � � \ \ \ ���K • `,,�.. . %'.'r / / / / } �l'. 4 � i x� i i � 1 1 \ • I 4) EACH UNIT SHALL HAVE SEPARATE WATER METER
�'k • • • a�a� \ \. \, ,'1 ! / ! �" / s, ti i ; I n 1 \ `1 \ ` PARKING STALL WHICH WOULD PREVENT SAFE INGRESS AND
' • •< ,.+ \�1 �'' J J / / ry , I it �. I PER NBSD REQUIREMENTS. TWO METERS SHALL BE
" • a ! ', }(' a \%\ `t '� / / /� I s i I A 1 { 1 EGRESS FROM A PARKED VEHICLE.
i' '' Nnl i ` �'`34 "r 4''."` -� ' � / i s� 11 \ \ / PLACED IN ONE FORD GULF BOX WITH LOCKABLE
✓ .'.'. �} \ ` 1'! 4 ' 1 5. SIDEWALKS TO BE 5 WIDE AND 4" THICK WITH A 1 DEEP
LID ON CONCRETE BLACK. TO $E SERVED WITH 1
J / '
// 1 .+-`- 'r� \ � ,�\ \�\`sue ,. s Zy f' � i' I i I ih ' ? ' � � , � � i 0 , % � I � 1 � SCORED JOINT EVERY 5'. SERVICE LINE.
1. '•�,ci'Z� + + \�i `\ � �3 v�.' � � - - .��- -�, `; \+\�d� , f ! ! ` � COMMON AREA I t "' i � ��`''' � 1 \ ` / 5) DESIGN BASED ON SURVEY BY McKIM & CREED.
j �•%i - i `S9. 1;1 \ \a'�\.' _ �` 'i.'}'.`°7._\, ! 1 t ; `� � WESTPORT �-' Ii j' � l �\ 1 t _' 1
S'1 . - ' �� \ \ Nft�:
' . - .. �, Aj ,- - _ _ -_ _ SECTION 2 � __ 5 17'05'19 W % _ ` 1 \y �,1\ \/ LANDSCAPE NOTES:
i • . . - . - . i '(s•'*1 � \ \ e. � .� . . ' ' �' � - 'r � 2,�is'-mil I 11 , .
1 _ ice. �� '2�' \ ' . '_�.� • e \ ` -17 ` a �'� M•l3. 29 PG. 491 1" \ I i I ; ,, \ 1 1. LANDSCAPE STRIP SWALL BE A MAXIMUM SLOPE OF 7: 1 IN GENERAL NOTES:
\' '` • \\c,.°.% .\ A`, ip - -,":�� ----- J$� -��� /` .ti ? i ` / / l t1 a \ / ORDER TO PLANT VEGETATION.
t',`.-. .'. ... . * �l \\.%`� �; •'�" `1�= __: 'fir`: y�`Tc' -- --> �R - _/ _.a f- i -i /> ` \\"`,- 't ,,` 1\ \ 1 L0 21 1. CONTRACTOR SHALL CONTACT THE.N.C. ONE CALL
a '» �` . `1 r .,1. \ ,'�s, ti -� __ _ -� � _ _ _�!4 ti I 1� / �' \ \\ ` \. WESTPORT
.�_, - --- - ^- - .. �\ SECTION 2 PLANTING. PRIOR TO ANY LAND pISTURBING ACTIVITY.
I. . . . .' 1, •` r \. '` -� : -. '. » , a1 i 1 \ , M.B. 29 PG. 491
I, " Y �, � �� ,�� s1 -y - - _ 1 - 2. CONTRACTOR SOLELY RESPONSIBLE FOR COORDINATION
- -Ai��, �;, - _ ':g�` iy_� _ �__
, A �? \ \. •� \ 1 WITH EXISTING UTILITIES AND ANY DAMAGE THAT
L" '. .-. .'_ 2 �= t'.-- -=_ _- _ - ' "'i J .\ _. \\� � \ , , OCCURS.
s - A._. �, _ �� ___ _ _ _ - f I.` ♦ �\ \ I 3. CURRENT REQUIRED TRACT ZONING - R,i S.
o _ � �/ _ 4. ALL TREES TO BE SAVED MUST BE PROPERLY PROTECTED
1, . .' . \' _ - j ��z 36¢�2 ��'.' r•�t'Q?'�T _ ��- ` _ - _ - - w� 1 ♦1 \ \ \jam ♦ THROUGHOUT CONSTI�UCTION.
i• . - �- - W1•\ £ \ - �' •-r= 3FX . _ - .1t �° 04 zip, __ __ -- --- - �` , JFM1 �/__"I / ti ♦ , 5. ALL BUILDING ROOF DRAINS SHALL BE CONNECTED TO. THE
t. .'. �, +�♦. t•�- - c*+ �� • .•. - 40•gi� E- 'L7_= - -. _._ _. _. ` _ �- _ / ,� ' 6 / STORM DRAINAGE COLLECTION SYSTEM.
i _ f (�t�,+_ .�` �`' '�01 /� (_ - l `\ SAS �'�';55 o i / `'�\ F,- `�
�- • �.'•�'', 2S• .� ! Ic y-•--,•C't3t �� . \\ �\ \, f\., `56�. Fr / �.` �'yr�3/ %I `�__\ .
C.
1' ... _ _ ,. , �' ' • _ . _ .' -. � :� • . F / '`` ". . \ A LOT 20
---,-- SF -� �' _ ----=�= S .. , � --� -� i / ,tom% ; � " Sfi - {~ �i -- , WESTPORT
_,�1111 r
`••- `+ "• C• " _� . -�',� r",`.+: >`a..• . ss2 1� .;_.•
a " - -. �-#: » *- +, • " \.. *y o19. N •�:.. "i , • ti ` - i ` M.B. 29 PG, 491
>t". _ . W -
'" -.-.1 e' H •r'y �. ,\. ,� F �.., • ,�` , .:�--__15___��
. . * . � . , ,
LV
4--G .i N ... .. -+ _>•. - -IV X .•.1y � �•gp� e
y- - N , aim. - � ' ��' - i - � .
I'» 1 \• Yam•.• » -�.». » .. r, •�;.• cr 'a+ / \ \-, �.
�•. F•_i \-`.-.•.. . %- " , t.. *� PHASE 1, SEC�1,�3N\ �I \',\\tip \\
• 22.3 �' CONCRETE DRIVE f -- ! Q \ 9.. �. OWN SPACE , \•\ , �Ir
sz'
. v y . " � / i 1 �X- \ ` "I..\. � ♦ ; 0.48 ACRES \\ \ \-- , \�; s, e, \
1` .. 1 t _ N
I-•0-»._ +.� % Inlet Protection 21.8 \ _ , . >i. - �2),6 \\ I/ .\'-1 I \ " \
I'. / r urb ' Q " i \
C . _ _ - � sx \ $I `q1R_ SC,E ns :T alg � g fJ 8 • • £ * 17, � / \\ \ \ \ '\
- ��, I ,� Catch $a5ln / 1' 1 1.5 `L `' �4 �` , •' �4'. 'L r ' � `.
i-"-p- =�. -- i} With Flap Val'v \ so 4. �•\,... _ _ .�: Wl-�o_ fin_ ` .��•' \ -----_ - - _ -
•us +�. .��� _ Top=21.5i, 1. r' \ no ' �� • °�• + °'sss
}, m .Qo *.�3, Inv.=17�0 ✓ / \� \ ,`� \ Setback \ 4 / �.
' ! . • � (D . PAT!0 ' �/ ._ ` ` \ \ ` \ - -- It
-
- - y - , • - I \ ' d.\. �° .�, N 12.26'06" E 20' Landscape 8c \ ` i'
_ .Q.. -�+ - rn A / � \ ` ` \ \ �` 'y'\ . .... c". ..25.69� . \» Buffer Easement I y .� 1 r
---�,. _ V'I ' �\ \ r\'�:�..�; +•'- �`� • �', ti �`�, / `! LOT 19
1' . .`L _ ' I . \ .. 4s �r�-ram. N�
t . . - SIDEWALK - ... . ` e - ` \ a• as I WESTf�ORT
`o �.'� _I n, \\ Pervious �' ma's
4• V . 0 - • .I Pfcambing I Concrete \ . ' _ \ .t . .S� `J� CO'\ SECTION 2
1. - �.` . " _ j , G`onnection i ° \ y _' o� �, M.B. 29 FAG. 491
` \ , . , - \ �y*�\ ` 11 ,
E1 �' - . Inv.=19.0 I \ FIREFIGHTERV. \ - �` .".'.'.,\. `, . - \
i' ;� _ := _1 r \\PARKING e''.. '. .� `y� ��
I, ?*� , - . - . a, � •0U .5 SPACES Y $srm ` . \" . . `,\ « . . _ . I� 52"E o \ -
76'4 0
V - _,� "1t, \ ~ 2p a = .� .\ \'+ ._._.\. --_- 9.83' \ � \
i`" - `` ' ' \` FES 1nl�t `� \\ �` \\ F `�\
t•, . ,"-" .- \ '1 ~' • � w W' -,1. - Gur l tiet 80'S1'15"E \ � �
i. " . . . _ , • _ 1*1 -� � . ' Top 19\' Inv.=12. y� --- . 16.9,7' �� \ _
------ ----- --'23-----___ ---_-___ -
VICINITY MAP
(NOT TO SCALE)
N
17-74-76
W
VILLAG RD.
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600
Of
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PROPOSEp
a-
FIRE STATION
v
PROPOSED STORM DRAW LINE
CONTOUR (EXISTING)
LANDSCAPE AREA
PROPOSED SPOT ELEVATION
SHEET FLOW
HANDICAP PARKING
HANDICAP LOADING ZONE
CANOPY TREE
SHRUB
WHEEL STOP
RIP RAP
Sn DATA TABLE
�_'_' . . ' . ` J _. _ ✓,-- in cn \'• d r1 v. 12. 5 \ " �.- ON \ -- - -- -
\ n 2¢ ` .1 ' �- -�
I' - • • • -.'.I\. \ sJ can �R I • _ ' �' \ lkL tie \
, , * * I - * - * - - - - � " \ I f , . 0 Y : , 0
SS
y a `' \ i ir` 4 •'_� .� YQ ,%,� %J. It.. .. '111111��1 , y `\ v.-' - -� f�iy ° � ♦ - ! I 2__s a G•J'ol C
�t .'. .- -1 i r� .. ♦ da.FORE6� /, \4 . 'k . \_ `. 11.74'
, j ..Tee. ./ \ , . \ _ . ' �` - _ 1 ` � S \
�_*.*_*_ • . • ' ' - 1 _ JI ,* \ 6„x6„ x6H a `­�;::: ' \• _ 1 -' \,r-
y• y '° _ - . N ,>• s,�, F COMMON AREA
- SID L L \\ 4• �'�� \ 1 ,, , .. 1 d ��, --- -- _. _') __ WESTPORT
. .� / 8 EWA K t _ .
_ 24'_ \ �v SECTION 2
/ I. . _ - •} r � i, \ ' t» I to _ M.B. 29_P�.�.491
NOW OR FORMERLY i _ - ' ' 5 Proposed �� \t' 'ti ';. i I
�" . _ % Fire
MALLORY CR K �, . \ TOWN OF LELAND \� A t 68-16'20'E ` w LA
E t . -'I o � .Hydrant \ 0� ' .'_-..;r:. '\ - 1 c
DEVELOPERS, 9NC.1.
. . _ ♦ / % _ :� . Y 12.21'
1904 EASTWND RD. / % I • . - _ - • - / \ � 21.0 FIRt�RESCU1w STATION 7 \ , - , • -'% _ Y
SUITE 2fi�1 / _ : `I \ 4 �:I 'I - _ - .- - - '1,.65 ACRES \ : `.. ` _ ' . \ . ,h Les � \
WILMINGTON, NC i/ �*-" _ • • -,I VISITOR PARKING ` . �- Curb Inlet\ / ` _-
28403 I___.v,..:.�'` i // /� \\ 5 PACES I ��' Top=20.0 4\♦ SETBACK f \� `•, . e.
r a SETBACK �% / I . .. I " _ �,, O' S�
/ i 1 : • - 4 . ��� I / C -RETE DRI�{E-1 c,, �� Catch Basin •�� / `� - -..�• 1 j is ' a y{
/ i•.'-" ?.% + . I / / - �11 =18.0 / / Temp. r # 'ctlir.. - �_ Q, F
i \ / Curb Cut I �P li'1. -
r // I' '"' " .. , � / /f \`, � Inv.=20.0 Z lnv.'=Ta5.0✓/� Constructiory I �I - - i• 17`E
t . . 7 _ _ A € / ( --Enlran „/ 75'47'
f / 'C'_•.'. .'.'.' / - - ^���- --� - - . i FES 5.12' )1. -S 75'48'43" E
,i i•f. •0 i i 34�ry 19 ---- - _ .._---- -- _---1,7, �� �� Inv.=14.0
r ./ y '•"•' � -'I t4 0.3 / 18 r ockflow y -_ Y- - - s' -,n ` �� 9.88' --
_ 20. vim_ �i _ �---- i,� - - _ - `, � / `S-1477'07" WW 67-72'S.o7' - --
--------•----__
/ _-------- _- 1'. . . . _ '•1 __ - 1 r t�..^SF _---5-"5'2�"w _- _AI- -_ - - __ _
- ^ -- -' - - - - 2" Water - -- - - - Vegetation Titter
y. ___ _ _2O_ _---- ------ - ti� _= -_ - --� -----4A"e�--� � �' FES __ -� _...___._
�_ EE _ . _ e 18 . ,` INV.=16.5 -161- I_ G.P` -_ vt- _
__w_ ---- E.O.P. ^1N�i=19.5 - - --� 19 _ - - -
-- -- --- -- -- ---- - - - -- -- - -Ex. 2 ` R25' 1 .5 \� ~,' `\'� , I \ 11
R25'V 20OLF •� R25' R25 \ \
\. N 4 6" THICK 24" RCP \ 6" THICK ` \.
�, 1 45' \\\ CONCRETE APRON 143' \�. 1
N.CONCRETE APRON
°° i _ _ _ , Water N.C. HWY. 133 '", RIVER ROAD ' ,, : \ �'
� +- � 1 Bore and Jacky \
Valve with 16" steel, casing
i� \ �i' 6" ductlle,iKon " If 1
' } ) fi"xfi"x12e carrier,,pTpe ,, 1. � �'
Ex. E.O.P. - - - -- - - - - _ -.- _ ! - - - -r -- - - - --
- - 12v- - - - - 12V- - - - - 12w-- - - - - 12V- - - - - 22w- - - - - 12w- - - - - 12w- - --- -- - 12w- - -•-- - - i2'w- - -- - -- 12w-•-- -- - - 2W- --. - - - 12v- - - - - 12a- -... - - 1'w- - - - - 1?w- - - - - ��Lr- - - - - :aw � - - - ,a,.,� - - - ,�„- - . E.+7 __ - - - - _- �__
*x P
GRAPHIC SCALE
0' 0 20' 40'
1" =20'
t,
��i■
��
t•■
•-•
MAINTENANCE PLM1 .. .
1. All erosion and sediment control practices will be checked
for stability and operation following every, nmaf=producing
rainfall but in no case less than once every week Any
needed repairs will be made immediately ro maintain all
practices as designed-
2. All construction entrances will be periodically topdressed
with an additional 2 incIllas of #4 stone to maintaan proper
depth. Any sediment that is tracked into the street will be
immediately removed.
3. Sediment will be removed from the sediment trap and block
and gravel Inlet protection device when storage capacity
has been approximately 50 % filled Gravel will be cleaned
or replace when the sediment pool no longer drains properly.
4. Sediment will be removed from behind the sediment fence
when it becomes 0.5 feet deep at the fences. The sediment
fence will be repaired as necessary to maintain a barrier.
S. The sediment basin will be cleaned out when the level of
sediment reaches 2.0 feet below the top of the riser,
Gravel will be cleaned or replacaed when the sediment pool
no longer drains properly.
B All seeded areas will be ferflltzed, reseeded as necessary,
and mulched according to specifications In the vegetative
plan to maintain a vigorous, dense vegetativle cover.
STABILLZATiON NOTES
1. AD slopes will be stabilized within 15 days of cease of any
phase of grading.
2. All other areas will be stabilized within 15 days of cease of
any phase of grading -
CONSTRUCTION SCHEDULE
1. Obtain plan approval and other applicable permits.
2. Hold pre-oanstntfon meeting at least one week
prior to beginning construction.
3. lnstaWMaintain temporary conshtwilon entrancelaxit.
4. Before Wearing and grading of the site, Install slit
fencing at the base of slopes to restrict movement of
sediment from the site.
.5. Begin clearing and grading of the site.
B. Install storm piping, catch basins, and curb inlets.
7. Install Inlet Protection for catch basins and curb Inlets
to restrict movement of sediment from the site.
b L All erosion and sediment control practices will be
q 0 ,,+ 06, inspected bi-weekiy and after each rainfall event
k .1�1� DI Needed weirs will be made immediately.
�,, r ' 9. After the entire covered area is stabilized, all temporary
��p� %,o
measures w!1 be removed and permanent vegetative repairs
�Q\1v\ - ��\O� to be completed.
�Q \,�P,N �\�\\Ss �\,�,>< ,
�O�,h �P`��aF�P, VEGETATION PLAN
o" qp�
Q��\, � G 1. After complete stabilization of the entire covered area,
top cover soils will be roughened by making 1' 2' deep
�V_`
`� grooves perpendicular to the slope.
2. Spread lime (agricultural limestone) evenly over the area
at a rate of 1.5 tonelwre; spread 1040-10 fertilizer at rate
specified and Incorporate Into the top 8' of soli
3. Loosen surface prior to applying seed.
4. Broadcast seed at recommended rates.
5, Rake seed into the soil and lightly pack to establish goad contact
B. Mulch with 4000 Ib/acre grain straw or equivalent and anchor by
weighted farm disc set nearly straight or other mulch anchoring tool.
7. Mow as needed and refertilize In late winter or early spring by topdressing
with 10- 10-10 flertilizer.
8. Graded surfaces shall not be exposed without grass coverage for more
than 15 days. if grades arse not complete and exposure is more than.
15 days, temporary seed as specit%d.
LELAND
TOWN OF LELAND DATE:
Q4/28/06
WESTPORT FIRE STATION
BRUNSWICK COUNTY NORTH CAROUNA
SITE SPECIFIC PLAN
RIGHT AN
ENOINEERIINC P.C.
212 PRINCESS STREET
MI-MIINGTON, NC 28401
[phone] FAX [phone]
Scots:
AS SHOWN
Drawn:
WM
Checked
WSL
Protect No:
TLO206
Sheet No:
C1
. .
. .
. . . . . I A
. .. . . P (,�'a
C,5,P7
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•_ .yf Yy. .. j _ _ ir.

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DETENTION BASIN ELEVATION SCHEDULE
EL.
EL.
EL.
EL.
Ei .
EL.
I L.
EL.
SF ®
Volume
PERMENENT POOL
DISTANCE SHOWN ON -PLANS
WTH #
A
B
C
D
E
F
G
H
Perm Pool
Perm Pool
1
17.0
16.5
16.0
15.0
11.3
10.0
14.5
14.0
3000 SF
8760 SF
------
STAINLESS RINC!. TRASH RACK
RISER PRtide^kPiF CPNl weY .--.,
FOREBAY
��
3'
TOP = ®
10' WETLAND
DISTANCE SHOWN ON PLANS 3' VEGETATIVE SHELF
10" WETLAND
VEGETATIVE SHELF
EMERGENCY SPILLWAY
EL. CA TOP of BMK :
10' WIDE WIER
£L Q EMERGENCY SPILLWAY
FLARED END SECTION
E `�' 1
EL. TEMPORARY POOL
ELTEMPORARY POOL
f
OUTLET AT BOTTOM OF EXISTING CHANNEL
7ERUND
EL. D PERMANENT POOL
EL. PERMANENT POOL
EL Q SEDIMENT P x' 6, I
� EL ( SEDIMENT
!
AP :R x.INV,
_EMOYAL
ELE1rATlp WETLAND SHELF
REMOVAL ELEVATION ti
:
PRINCIPAL BARREL
ABOVE PERMANENT
SPILLWAY - 36" DIA.
POOL EL. TO BE SEEDED AS
EL. 0 ND .
SHOWN ON SEEDING SCHEDULE
RIP -RAP 5' WIDE
RIP RAP CLASS B WITH
WET
DETENTION$AS I N
SECTION
OUTLET
COLLAREXTEND
IUP
STRUCTURE.
ANTI FLOATIONTf-SEEP
SIDES TO
N' M SC"
BLOCK
TOP OF BANK..
SEE OUTLET PROTECTION
SIZING FOR DIMENSIONS.
•• WETLAND SHELF PLANTINGS - EGUAL AMOUNTS OF PICKERELWEED, SOFT --STEM
BULRUSH ARROWHEAD/DUCK POTATO PLANTED AT 2 FOOT ON CENTER AROUND ENTIRE
SHELF NOTES FORDE7NTION BASIN
-�� La
CONSTRUCTION SPECIFICATIONS
°0�SITE PREPARATIONS - CLEAR, GRUB AND STRIP TOPSOIL FROM THE SITE AREA OF THE NEW POND TO REMOVE TREES, VEGETATION, ROOTS AND
3 Do a� ] o OTHER .'OJECTIONA13LE MATERIAL. TO FACILITATE SEDIMENT CLEANOUT. STOCKPILE ALL TOPSOIL OR SOIL ..CONTAINING ORGANIC MATTER FOR
Do ° 0fIa' - ^ 4 USE ON THE OUTER SHELL OR THE EMBANKMENT TO FACILITATE VEGETATIVE ESTABLISHMENT. PLACE TEMPORARY SEDIMENT CONTROL MEASURES
BELOW .THE BASIN AS NEEDED.
!
00.
a qo_>! � WCONDUIT SPILLWAYS - SECURELY ATTACH THE RISER TO THE. BARREL OR BARREL STUB TO MAKE A WATER -TIGHT STRUCTURAL CONNECTIN.
cry ,° SECURE: ALL CONNECTIONS BETWEEN BARREL SECTIONS BY APPROVED WATER -TIGHT ASSEMBLIES. PLACE THE BARREL AND RISER ON 'A FIRM,
S. goo SMOOTH FOUNDATION OF IMPERVIOUS SOIL. DO NOT USE PERVIOUS MATERIAL SUCH AS SAND, GRAVEL, OR CRUSHED STONE AS BACKfILL
NOTE; °�pdq {j� cl?o r oo0'4 AROUND; THE PIPE OR ANTI -SEEP COLLARS. PLACE THE FILL. MATERIAL AROUND THE PIPE SPILLWAY IN MUST .4 INCH LAYERS AND COMPACT IT UNDER
SEE PLANS FOR BELED DIMENSIONS . ►°loop n' FIRM CONTAANDAROUNCT WITHTHE IPE TO AT LEAST THE IITS FOUNDATION WHENSAME DENSITY AS THE COMP COMPACTING UNDER THE IPENHAUNCHES. PLACE RA MINIMUM DEPTH OFTAKEN OT TO 2 FT. OF
THE PIPE FROM
FLARED END SECTION HAND --COMPACTED BACKFILL OVER THE PIPE SPILLWAY BEFORE CROSSING IT WATH CONSTRUCTION EQUIPMENT. ANCHOR THE RISER IN PLACE
FES
Do
La
W
D
CLASS
1
24"
15'
16.5'
12'
B
2
18'
10'
11.5'
12'
B
3
24"
1 S'
16.5'
12"
B
BY .CONGWA OR OTHER SATISFACTORY MEANS TO PREVENT FLOTATION, IN NO CASE SHOULD THE PIPE CONDUIT BE INSTALLED BY CUTTING A
TRENCH THROUGH THE DAM AFTER THE EMBANKMENT IS COMPLETE.
EMERGENCY SPILLWAY - INSTALL THE EMERGENCY SPILLWAY IN UNDISTURBED SOIL. THE ACHIEVEMENT OF PLANNED ELEVATIONS, GRADE, DESIGN
WIDTH, AND ENTRANCE AND EXIT CHANNEL SLOPES ARE CRITICAL TO THE SUCCESSFUL OPERATION OF THE. EMERGENCY SPILLWAY.
��I D
INLETS - DISCHARGE WATER INTO THE POND IN A MANNER TO PREVENT EROSION. USE OUTLET PROTECTION AT EACH PIPE TO PREVENT
EROSION OF THE POND FLOOR.
SECTION GEOTF.XTILE FABRIC
EROSION CONTROL - CONSTRUCT THE STRUCTURE SO THAT THE DISTURBED AREA IS MINIMUMIZED. DIVERT SURFACE WATER AWAY FROM BARE
PIPOUTLETA
� �� p l ��
AREAS.? COMPLETE THE EMBANKMENT BEFORE THE AREA IS CLEARED.
SAFETY. -. SEDIMENT BASINS MAY ATTRACT CHILDREN AND CAN BE DANGEROUS. AVOID STEEP SIDE SLOPES, AND MARK BASINS WITH WARNING
III TO SCALE
SIGNS IF TRESPASSING IS LIKELY.
MAINTENANCE INQTES FQ,R,.DE'LNTION BASIN
1. AFTER EVERY SIGNIFICANT RUNOFF PRODUCING RAINFALL EVENT AND AT LEAST MONTHLY:
A, INSPECT THE DETENTION BASIN SYSTEM FOR SEDIMENT ACCUMULATION, EROSION, TRASH ACCUMULATION, VEGETATED COVER, AND
GENERAL:, CONDITION.
B: CHECK AND CLEAR THE ORIFICE OF ANY OBSTRUCTIONS SUCH THAT DRAWDOWN OF THE TEMPORARY POOL OCCURS WITHIN 2 TO 5 DAYS AS
DESIGNED.
2. REPAIR ERODED AREAS IMMEDIATELY, RE -SEED AS NECESSARY TO MAINTAIN GOOD VEGETATIVE COVER, MOW VEGETATIVE COVER TO MAINTAIN
A MAXIMUM H# 1GHT OF SIX INCHES, AND REMOVE TRASH AS Nf;EDED.
3. INSPECT AND REPAIR THE COLLECTION SYSTEM (I.E. CATCH BASINS, PIPING, SWALES, RIPRAP, ETC.) QUARTERLY TO MAINTAIN PROPER
FUCTIONING.
4. REMOVE ACCUMULATED SEDIMENT FROM THE DETENTION BASIN SYSTEM SEMI-ANNUALLY OR WHEN.. DEPTH IS REDUCER TO 75% OF THE
ORIGINAL DESIGN DEPTH. REMOVED SEDIMENT SHALL BE DISPOSED OF IN AN APPROPRIATE MANNER AND SHALL BE HANDLED IN A MANNER
THAT WILL NOT ADVERSELY IMPACT WATER QUALITY (I.E. STOCKPILING NEAR A WET DETENTION BASIN OR STREAM, ETC.)
THE MEASURWO DEVICE USED TO DETERMINE THE SEDIMENT ELEVATION SHALL BE SUCH THAT IT WILL GIVE; AN ACCURATE DEPTH READING AND
NOT READILY PENETRATE INTO ACCUMULATED SEDIMENTS.
WHEN THE PERMANENT POOL DEPTH READS 1 FOOT IN THE POOL, THE SEDIMENT SHALL BE REMOVED.
5. IF BASIN MUST BE DRAINED FOR AN EMERGENCY OR TO PERFORM MAINTENANCE, THE FLUSHING of SEDIMENT THROUGH THE
�\
.TNE
EMERGENCY DRAIN SHALL BE MINIMIZED TO THE MAXIMUM EXTENT PRACTICAL.
6. ALL COMPONENTS OF THE DETENTION BASIN SYSTEM SHALL BE MAINTAINED IN GOOD WORKING ORDER.
U
STEEL
j
STEEL L......OF`.
6"
POST
WOOD
P05T
WOOD
POST
POST
GENERAL NOTES:
##3 WASHED STONE MAY BE USED
FENCE FABRIC SHALL BE A MINIMUM OF
32" IN WIDTH AND SHALL
TO ANCHOR SKIRT
HAVE A MINIMUM OF 6 LINE WIRES WITH
12" STAY SPACING.
FILTER FABRIC SHALL BE MIRAFI 100 OR
EQUIVALENT AND
4'
SHALL BE A MINIMUM OF 36" IN WIDTH.
(TYP.)
BURLAP CAN NOT BE USED WHERE SILT
FENCE IS TO REMAIN FOR
A PERIOD OF MORE THAN 30 DAYS.
STEEL. POSTS SHALL BE 3 -0„ IN HEIGHT AND BE OF THE
2:1 SLOPE
SILT FENCE
PERIMETER
STAINLESS STEEL
TRASH RACK -�
4 x 4 CONC,
BOX RISER
21. 0
EL.
EL.I D ELQ
2' CONTROL
PIPE WITH SCREENED PRINCIPAL
45'BEND INLET EL SPILLWAY
5' x 5' 6' CONC, BASE
oa
U"a °'ate d ' .,• b 6 4�'1-'
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NOTES,
L 2-INCH CONTROL PIPE TO BE FABRICATED OUT OF GALVANIZED
STEEL PIPE. CONTRACTOR TO PROVIDE SHOP DRAWING BEFORE
STRUCTURE IS FABRICATED.
2, CONTRACTOR SHALL SUBMIT TRASH RACK SPECIFICATIONS FOR
APPROVAL PRI❑R TO CONSTRUCTION.
3, CONTRACTOR TO INSTALL RIP RAP 5'WIDE AROUND ENTIRE
OUTLET STRUCTURE.
4. TRASH RACK MAXIMUM OPENING SIZE IS 4'.
OVERFLOW STRUCTURE
N. T. S.
D
AX8
H
12'
2'-2" x 3'
2'-4•
IF
2',2' x 3'
Z-V
it
2'^2' x W
2'-W
24'
3' x V
4'-v
30'
4 x 4
4'-C
38'
4' x 4
S-0'
47
S x S
6-0
INrwiww 1...
o.
WTI I!M
•
lIIIIlIIL► i i • i : ' i
�l�lL■ �.,,JI�.I■li�F��f�r
� i�■I � Ini■i�.r� � I�i =t ■I�A■I
III � h� '•
„III 1► � •
SELF -FASTENER ANGLE STEEL TYPE. FINE GRAVEL FACE 3:1 SLOPE WIRE MESH (OPTIONAL)�.
WOOD POSTS SHALL BE 6 TO 7 FEET IN HEIGHT AND 3 TO 4 INCHES (1 11 THICKNESS)
IN DIAMETER, WIRE FABRIC SHALL BE FASTENED TO T '
,. I I f !.. I..
WOODEN POST WITH NOT LESS THAN 9 WIRE STAPLES 1 1 2 LONG. 'I}! -��, I; l
I CATCH BASIN
SILT FENCES SHALL BE INSTALLED AROUND ALL CATCH BASINS. �II`T",�I .II!Il .1!-1i1!l ,`I .
SILT FENCES SHALL BE PROVIDED AS NECESSARY TO PREVENT
3" STONE
EXCESSIVE EROSION. ' 4
4.
TEMPORARY SILT FENCE RWR DROP IM= PR07ECIM (OWU Q=3)
NOT TO SCALE
NOT TO SCALE
'_-► Y
PLAN CAST- N-PLACE
OR MASONRY
CATCH BARN
NOT TO SCALE
FRAME, GRATE & HOOD
NEENAH R--3290 OR EQUAL
;., I
Z
g
u7
f
cal ---
General Notes: Precast Catch Hasins
1. Precast concrete structures shall be in accordance
with NCDOT section 1077 for "precast concrete units"
of the most recent "Standards Specifications for Roads and
Structures" And ASTM--C--913 for 'Reinforced Concrete Water
and Wastewater Structures".
2. Concrete compressive strength shall be 4000 PSI Minimum and
shall meet the requirements as specified in NCDOT section '
1077.
3. Reinforcing steel shall be of deformed steel bars conforming to
the requirements of ASTM-A-615, grade 60, or welded wire
fabric conforming to the requirement of ASTM-A-82 or both.
FRAME & GRATE 4. Reinforcing steel design shall be according to C-890--78 for
N.C.D.O.T. STD. #840.16 H-20-44 Loading.
3 5. Steps required on structures over 42" deep shall be on steel
reinforced copolymer polypropylene plastic.
6. Section joints shalt be sealed with butyl rubber sealant or
g" NCDOT approved mortar at the option of the contractor.
7. Pipe connections shall be sealed with approved mortar. NCDOT
approved brick may be used in conjunction with mortar at the
contractors option.
= 8. Lift holes shall be located as required for handling and sealed
after installation with NCDOT approved mortar.
T 7
,�rlt;1,
i
WM
Checked:
WSL
Project No:
TLD246