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THIS DRAWING PREPARED AT THE
RALEIGH OFFICE
5410 Trinity Road, Suite 102 1 Raleigh, NC 27607
TEL [phone] FAX [phone] www.timmons.com
North Carolina License No. C-1652
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11,,11111,, , 6-INCH PVC ' ' ' LLp1 \ ' + / , - ' I \
t5 R OF IR, DISTURBED AREA = 7.54 AC.
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ELEV. = 535.5 FT. (APPROXIMATE) ' '1 t ', '� f'I o �� `, LaD- Zu I i Q
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I / / 11 1 ` '�'� .'' -' " _- ' �- ' '� / : �' ee° W , \ 1 '\ ' ` - _ __- ---------------s SILT FENCE/ :::.:::::::<:::::: , ' % ' ' '
' � 3.' SILT FENCE ' ' - °e°e - ---- - d ----------- r r-'S50------------ EXISTING CONTOURS
,",,;Is \\ ,\'',+t� , / / '` / ` � D1 TR�Pf2-OTECTION--o ' ' ' '
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\\\ \ - �_ - / 1 _ PROPOSED CONTOURS
---
\ , -- % '^ ` \--------------------- DIVERSION BERM ,' ,' ,' /
LIMITS OF DISTURBANCE
I \ ♦ ter.;_ _ _ __ _ _ _--_
I ` ` ---- , - - ` - -
f -
, --------- ---- -- - - - _ _ _ _ ss FOB 54 . _
1 \ ` . _ _ _ _
/ 83�- ,' ,/---- _- --- CHE AM � \ � `• \\ I � ' --------------------"" � 5 FT.� - � i � - ; � ' . � ----------------- PROPERTY BOUNDARY
''� 3 -t✓OIR LO LE '' 3
_
_ _ -DL CK � -.� / / EXISTING STORM DRAI
,\
- '/------ 3or '_' , --', -- 545 ---- - / / ♦ __ \ ay♦ \\ \ \, +\ Lp 'I , 1& `` ___- ----__ 2 r\ r i ,' , / 0,'
. /
`---` ,'' ,""/------ s ___ -----' Si `- + I NI 11 ` ` _- --� _ I w w EXISTING WATERLINE
_
_
AMPHITHEATER ROOF _
_ _ _ _ - __ -DRAINS WILL DRAIN `' \\ ,\ 1 ) �o , �;__ 'q, . \ - ---------------- - �0 - �I WATER VALVE
---________ -- _ - _---------TO CONCRETE PAD \0 \ 1 �O/ -__�_ �i/ _-- ____ - L ____- / I ,/ DQ
pia_____ __-- __-_' ___ __ \ \ V\ \_ + _ „„ _-I , `\` _ _ - _-_--_ _ / '
-UNDER GUTTER _ 1 �� "\++ `\\ "-------------- _ _ '-- CRZ CRZ CRZ - CRITICAL ROOT ZONE
-` - ____ -------------- -_ \ - __-- _
' ___' _ -� - ---- 550 SYSTEM RUNOFF t� e V* / � ZJ�_ �- C \\\\\ /' ----------------------- - __ _-------- BUFFER ZONE
�` ' -------------- TO DRAIN TO SWALES uGE c �'� `, _ /2 a��� --- \\\\� -'" ----------------------- _ _ `s ------
' , . '' , /' , , , _ _ ' - - - - - 1�.�� - ;; \ , \ `, ` \ \ \ \ \ ' , - - - > \\ + /' ` , _ \ `1'
_ - EXISTING POND EMERGENCY SPILLWAY ( A ` SWALE- /'�� / S `\ +\ -�- I `„ __ __-- _-- ---- I EXISTING WETLANDS
\\ , '
/ _- ` \` \ �. \,\ ♦ ' . .'--545---------------------' W W \Y \Y \L \L \1/ \1/ W W W \Y \Y \Y
,'' , ' _ WIDTH = 25 FT. (APPROXIMATE) - _ I — uL* - � \\ ''----------------------- _'
ELEV. = 536.5 FT. (APPROXIMATE) - - v E �-pD �\ `\ \\ _ �v�0�-----------" \``\ , ``\ ,'----------------------- _ - --- EXISTING TREE LINE
'' _ __--------- - - TA, / �cF '\` ��, `\ c�� `---- p'��� \ -TF�EE ---- 7 +`��\`\/' ----------------------- PROPOSED STORM DRAINAGE
' s SWALE=P A ti Q _ _ _ _
,-' - _ - -'' _,__-'' ------ sss - G SWALE---N ,\ < �p� ' _ ______
-C,--\ \ `, —_ 7 _ T - \ PROTECTJ-CGN---[31------ .,\\``�\ ,' \ \` ---------------- - _- -___
" /' ,'/ /' /' _-'' --__ _ - ' \ I N , I _ - F + 1p= /------------- \\ \`\ /' `\♦\:` _ sao ---------------- - _ TP/S TP/S� SILT FENCE/TREE PROTECTION
/' /'_'' _ - ; r It 1 \� / 'SILTfENCE - ,\` �' - _-- `\ \\+ \\ , ' -- SILT FENCE 3 TREE PROTECTION
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TP
\\ `'/ OUTLET _ -Dt- 0 INLET PROTECTION
/ _ _-\ 2'1 SI'LT ENE/`, \\I ,OUTLET- D1 - - L❑ --- ---- , \\\,`\\\\\ ,' ,' _-- __
DIVERSION DITCH
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_ _ \ \ / , , - TEMPORARY DIVERSION DITCH DATA TABLE
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/ / _ `
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f ' ,/ / / , / , ,, , "-------------- S6o `\ \\\\\ \\ \ \\ \ I I I I I '\ / , I I --
/
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\ \ ' + 1 , I I I i ,,/ , , /,
1, I
-
/ , , / , , , __ - , ,\ \ \ \ \ \ I,I I I I I I ; ` ' 'r ,, / , ,/
, / / / , ., /' \ \ , \ \ \ 1 \ \ 1 1 1 1 1 ' ' 1 ' '
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COIR LOG WATTLE CHECK DAM
\� CONCRETE TRUCK CLEANOUT
�-
\\ EROSION CONTROL MATTING
SCALE 1 "=60'
/ , , , , / , , ' /I '---- - _ \` \ \ \ \ \ \ \ \ \ \ 1 \ I 1 I 1 I I 1 1 ' 1 / / / , , / __ - . 1 1
,/ / . / , , / sss , ` ` \ \ \ \ 1 \ , 1 1 1 I 1 I I I 1 1 / I / , . 1 0 60 120
11
Swale ID
Slope (ft/ft)
Bottom Width
B ft
() ( )
Minimum Depth
D ft
( ) ( )
Minimum Top
Width ft
( )
Side Slopes (A)
ft ft
( / )
10-Year Design
Flow cfs
( )
10-Year Velocity
(fps)
(p)
Wetted
Perimeter ft
( )
Hydraulic Radius
ft
( )
Design Shear
Stress Ib sf
( / )
Channel Liner
Diversion Ditch 1
0.01
0
1
4
2
1
1.7
2.45
0.25
0.16
Curlex Type I
Diversion Ditch 2
0.02
0
1
4
2
3
2.8
3.25
0.33
0.41
Curlex Type I
Diversion Ditch 3
0.01
0
1
4
2
1
1.7
2.45
0.25
0.16
Curl exType I
Diversion Ditch 4
0.02
0
1
4
2
4
3.1
3.62
0.36
0.45
Curl exType I
Diversion Ditch 5
0.06
0
1
4
2
3
4.3
2.65
0.26
0.97
Curl exType I
Perm Div Berm
I 0.02
4
0.5
8
4
1
1.2
5.5
1.8
2.25
1 Curl exType I
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REVISIONS
Date: 03/1 5/21
EC-2
4/28/2021 BID SET