HomeMy WebLinkAboutWPO201700020 Plan - VSMP 2020-12-22GENERAL NOTES
OWNERS:
TMP o56Ko-oo-oo-000A2
GLENBROOK, LLC
PO BOX 1467
CHARLOTTESVILLE, VA 22902
TOTAL ACREAGE: 4.7o AC
ZONING: R-6
DB.5075, PG. 672
TMP o5600-oo-Eo-o571B2
GLENBROOK, LLC
PO BOX 1467
CHARLOTTESVILLE, VA 22902
ACREAGE: 8.172 AC
ZONING: R-6
DB.5075, PG.672
DEVELOPER:
RIVERBEND DEVELOPMENT, INC.
455 SECOND STREET SE, SUITE 400
CHARLOTTESVILLE, VA 22903
ENGINEER:
COLLINS ENGINEERING
Zoo GARRETT ST, SUITE K
CHARLOTTESVILLE, VA 22902
TOTAL PROJECT AREA:
TMP o56Ko-oo-oo-000A2: 4.7o AC (PORTION OF)
ORIGINAL PARCEL: 6.3 ACRES
SUBTRACT EASTERN AVENUE R/W (1.055) & PHASE IIA (0.545 AC)
TMP o5600-oo-Eo-o57B2: 8.18 AC (PORTION OF)
ORIGINAL PARCEL: 8.502 ACRES
SUBTRACT PHASE IIA (o.33 AC)
TOTAL ACREAGE: 22.88 AC
PROPOSED ZONING:
R-6 ZONING WITH PROFFERS (ZMA 2oi6-05) & PRESERVED SLOPES OVERLAY
DISTRICT. (PARCELS SUBJECT TO PROFFERS)
PROPOSED USE:
48 SINGLE FAMILY DETACHED UNITS
TOPOGRAPHY:
TOPOGRAPHY PROVIDED BY ROUDABUSH, GALE & ASSOCIATES, JANUARY 2020.
BOUNDARY INFORMATION PROVIDED BY ROUDABUSH, GALE & ASSOCIATES FROM
RECORDED PLATS AND SURVEYS, AUGUST 2020. TOPO FIELD VERIFIED MAY, 2020.
DATUM:
NAVD 1988
EXISTING VEGETATION:
MOSTLY WOODED
PRESERVED/MANAGED SLOPES: PRESERVED SLOPES ARE SHOWN WITHIN THE LIMITS OFTHE PROPERTY. SEE
EXISTING CONDITIONS SHEET FOR LOCATIONS. THEREARE NO MANAGED SLOPES
ON THE PROPERTY.
FLOODPLAIN:
THERE IS NO FLOODPLAIN LOCATED ON THIS SITE. FEMA MAP ID 51003CO229D
DATED FEBRUARY 4, DOES.
WPO STREAM BUFFER:
THE ioo' STREAM BUFFERS ARE SHOWN ON THE PROPERTY. NO PROPOSED
DEVELOPMENT SHALL BE LOCATED WITHIN THE ioo' STREAM BUFFER AREA.
WATERSHED:
LICKINGHOLE CREEK WATER SUPPLY WATERSHED
AGRICULTURAL/FORESTAL
DISTRICT: NONE
BURIAL SITES:
NONE
DENSITY:
48 UNITS / 12.88 ACRES = 3.73 UNITS / ACRE
OVERALL ALLOWABLE DENSITY FOR PARCELS PER REZONING =D8o UNITS
PHASE I =84 UNITS (23.887 ACRES) - NOTE: io UNITS OUTSIDE REZONING LIMITS
PHASE IIA = 7 UNITS (o.875 ACRES)
PHASE IIB = 48 UNITS (12.88 ACRES)
TOTAL DENSITY: 149 UNITS / 37.642 ACRES = 3.96 UNITS/ACRE
TOTAL REZONING UNITS (TO -DATE) = 139 UNITS
BUILDING TYPE:
A MINIMUM OF 50%OF THE PROPOSED LOTS WILL BE SINGLE FAMILY DETACHED
HOUSES. SINGLE FAMILY ATTACHED (SFA) UNITS AND TOWNHOUSES MAY BE
CONSTRUCTED IN THE AREAS ADJACENT TO PARK RIDGE DRIVE AND THE EASTERN
CONNECTOR ROADWAY. A MINIMUM OF io%OF THE UNITS SHALL BE SFA OR
TOWNHOUSE UNITS.
PHASE I: (84 UNITS) i8 SFD UNITS & 66 SFA UNITS & (io BY -RIGHT R-6 SFD UNITS)
PHASE IIA: (7 UNITS) 7 SFD UNITS
PHASE IIB: (48 UNITS) 48 SFD UNITS
TOTAL (TO -DATE): 139 UNITS (R-6 REZONING) & io UNITS (BY -RIGHT R-6 ZONING)
SINGLE FAMILY ATTACHED UNITS: 66 TOTAL (47. S%)
SINGLE FAMILY DETACHED UNITS: 73 TOTAL (52.5%)
AFFORDABLE HOUSING:
TO BE ACCOMMODATED AS NOTED IN THE PROFFERS. SEE SHEET FOR
ADDITIONAL DETAILS.
BUILDING SITES:
EACH LOT CONTAINS A BUILDING SITE THAT COMPLIES WITH THE REQUIREMENTS
OF SECTION 4.2.1 OF THE ALBEMARLE COUNTY ZONING ORDINANCE.
SUBDIVISION STREETS:
CURB & GUTTER
UTILITIES:
COUNTY WATER AND SEWER
SETBACKS:
FRONT - 5' MIN AND 25' MAX (i8' MIN. FROM R/W FOR FRONT LOADED GARAGES)
SIDE -5'MIN
REAR - 20' MIN
NOTE: SINGLE FAMILY DETACHED UNIT GARAGES - MINIMUM 3' STEP BACK FROM
THE FRONT OF THE PRIMARY RESIDENCE.
BUILDING HEIGHT:
MAXIMUM BUILDING HEIGHT SHALL NOT EXCEED 35'
CIVIC AREA/RECREATION:
NO CIVIC OR RECREATION SPACE IS PROPOSED WITHIN THIS PHASE OF THE
PROJECT.
OPEN SPACE:
OVERALL REQUIRED OPEN SPACE (25%) = 37.642 AC * 25%= 9.491 ACRES
TOTAL OPEN SPACE PROVIDED
PHASE]: 5.8 ACRES
PHASE IIA: o.o ACRES
PHASE IIB: 0.947 ACRES (THIS PHASE)
OPEN SPACE "A" =o.o64 ACRES
OPEN SPACE'B =o.>_98 ACRES
OPEN SPACE'C =o.685 ACRES
GREENWAY DEDICATION AREA: 2.7o ACRES
TOTAL OPEN SPACE PROVIDED: 9.447 ACRES
OPEN SPACE SHALL BE DEDICATED TO THE HOA, WITH EXCEPTION OF THE
GREENWAY OPEN SPACE, WHICH WILL BE DEDICATED TO ALBEMARLE COUNTY
FOR THE EXTENSION OF THE GREENWAY TRAIL THROUGH THE PROPERTY.
PARKING:
2OFF-STREET PARKING SPACES SHALL BE PROVIDED FOR EACH DWELLING UNIT
ADDITIONAL ON -STREET PARKING SHALL ALSO BE PROVIDED ALONG THE
ROADWAYS AS SHOWN ON THE PLAN.
GUEST PARKING REQUIRED: 48 SFD UNITS x i SPACE/4 UNITS = 12 SPACES
GUEST PARKING PROVIDED: ig SPACES
LANDSCAPING:
STREET TREES ARE PROPOSED ALONG THE NEIGHBORHOOD STREETS IN
ACCORDANCE WITH ALBEMARLE COUNTY LANDSCAPING REQUIREMENTS
WITHIN SECION 32.7.9 OF THE COUNTY CODE.
LIGHTING:
NO LIGHTING IS PROPOSED WITH THIS DEVELOPMENT.
TRASH:
EACH LOT SHALL HAVE AN INDIVIDUAL TRASH CONTAINER.
RETAINING WALLS:
THERE ARE NO RETAINING WALLS PROPOSED WITH THIS PLAN.
OFFSITE DISTURBANCE:
NO OFFSITE DISTURBANCES AREA PROPOSED WITH THIS PLAN.
TRAFFIC GENERATION:
TRIP GENERATION BASED ON THE ITE TRIP GENERATION MANUAL (ioTH EDITION)
SEE SHEET FOR TRAFFIC INFORMATION.
GREENWAY:
PROPOSED OPEN SPACE (2.7o ACRES) TO BE DEDICATED TO ALBEMARLE COUNTY
AS PART OF THE GREENWAY EXTENSION. SEE PROFFERS FOR FURTHER DETAILS,
AND SHEET 2.
LAND AREAS:
OPEN SPACE = i58.870 SF (3.647 AC)
LOTS = 295,107 SF (6.77 AC)
ROW DEDICATION = 107,290 SF (2.463 AC)
IMPERVIOUS AREAS:
ROADWAYS 66,702 SF(D.S3 AC)
SIDEWALKS 18,3o8 SF (0.42 AC)
BUILDINGS & PATIOS/DECKS 91,296 SF(2.og AC)
DRIVEWAYS 18,537 SF(o.43 AC)
TOTAL 194,843 (4.47 AC)
MARTIN
I
I
I
1
FOOTHILL CROSSING II
VSMP PLAN AMENDMENT #5
AMENDMENT TO WP02017IIIIIIIIIIII00020
WHITEHALL DISTRICT
ALBEMARLE COUNTY, VIRGINIA
TMP: � 051E�0-00-00-'05769,\ `
OWNER:. GLEIV�ROOI \ LLC ✓ I - I f , 901
ACREAG : 8.172 P� I _ c e
ZONING '.R-6
DB/PG: `5075/672'
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TMP
0560E 00 00-05500'
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OWNER
COULE NIYOFAEMARLE -
ACREAGE.
219 AC
ZONING
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-2397/431
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GLENBROOK AT FOOT INLLS ! /' TMP 0561<9000a03900
PHASE IIB I OWNER', FOOTHILL
` �.
I'I I / \ 0.46AC CROSSING, INC
ACREAGE DA6AC
N O ING: R-1
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\ TMP: 0%So
P052G0 A
1 OWNER: F R, GEORGE BOR JANIEE
1 ACREAGE: 281A - \ \
\ ZONING: R-4 \`
\V DBIPG: 9481017 0 A2 A ' � SWM FACILITY �
BROLLC
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_ ;J-1AER✓ A E. 4.70 AC /
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DB/PG: 5075/672-____ _7
1
TMP: 0560E-00-00-04800
OWNER: HEVENE� RICHARD LLOYD II
ACREAGE. 14.94 AG'
ZONING: R-6
DBIPG: 660210 t
I
\ TMP: COUN 00OFALBE
\ � / OWNER: COUNTY OF ALBEMARLE
\
\
\
SHEET LAYOUT
SCALE: 1" = 100'
ACREAGE: 1.08AC
ZONING: PRD
DBIPG: 4081MI
----_
TEmaDRnnv caAOlNc
�ASEMENTF RE-
GNSTRDGTIDNOF EASTERN
VENOE G9NNECT RTO RE
VAq.4TEO WHEN MUCWN AVEN
IS GONBTfiUG
D.B. 4a'n,Pc ns
--_--_
` y�r TMPJ 056K0-00-04t00040
\ OWNER: FOOTHILL C' O$SING INC
\ ACREAGE: 2 78 AC ^
Q H'P
- �BIPG.
3 \ 1 Tfi' 9
1 _ ( SITE
VICINITY MAP
SCALE: 1" = 2000'
WPO PLAN SHEET LIST
Sheet Number
Sheet Title
1
COVER
-2-
EXISTING CONDITIONS
3-
GRADING & MITIGATION PLAN
3fk
GRADING & DRAINAGE PLAN
-a&
CONNECTOR ROAD GRADING & DRAINAGE PLAN
3C
GLENBROOK PHASE 2 GRADING & DRAINAGE PLAN
-4-
PRE & POST -DEVELOPMENT STORMWATER MANAGEMENT PLAN
5
PRE & POST -DEVELOPMENT STORMWATER MANAGEMENT PLAN
-fr
STORMWATER MANAGEMENT DETAILS & CALCULATIONS
STORMWATER MANAGEMENT DETAILS & CALCULATIONS
;404
STORMWATER MANAGEMENT DETAILS
8
EROSION & SEDIMENT CONTROL NARRATIVE & DETAILS
-9-
EROSION & SEDIMENT CONTROL PLAN PHASE 1
4@-
EROSION & SEDIMENT CONTROL PLAN PHASE II
4@A
EROSION & SEDIMENT CONTROL PLAN PHASE III
_44-
EROSION & SEDIMENT CONTROL CALCULATIONS
42-
EROSION & SEDIMENT CONTROL CALCULATIONS
13
EROSION & SEDIMENT CONTROL PLAN PHASE IV
14
EROSION & SEDIMENT CONTROL PLAN PHASE V
15
EROSION & SEDIMENT CONTROL PLAN PHASE VI
16
EROSION & SEDIMENT CONTROL CALCULATIONS
SCOTT7R. CDLLINSZ
Lic. No. 0357911n
Po 10/19/20��
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PLAN AMENDMENT PROPOSED CHANGES:
1. UPDATED AMENDMENT PLAN TO ADD IN THE CONSTRUCTION OF
GLENBROOK PHASE 2.
APPROVED
by the Albemarle County
Commulniitty/D2evel ment Department
Date 2
File WP0201700020
Amendment #5
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EXISTING VARIABLE WIDTH SWM `�- ` / \ 11\ 8'SAFETYB _
FOREST AND OPEN SPACE EASEMENT �� / i -6 16�
3oe No.
D.B. 5075, PG. 664-
`, 112066
/ - �7GRAPHIC SCALE -- -
SCALE
040 i 1 80A 160 I
,
. ( SHEET NO.
IN ..FEET
- ✓
i 1 inch = \40 ft.
,
L
F : 4 - -L-1 _,, WATERSHED
Watershed Summary for DA 1A: Outflow Summary:APPROVED _ \ OVERALL SWM PLAN FINAL
(2-Year Storm Event) \ y - - ; \. FUTURE BUILDOUT °" , SCALE 1 =1000'
1-yr, cis 2-yr, cfs 10-yr, cfs Pre -Development Post -Development - \ \ ` SCALE 1"=200'
Approved Pre -Development 6.86 8.49 25.44
Approved Post -Development Routings 1.48 1.61 2.39
Full Buildout Proposed Post-Dev. Routings 0.94 0.98 7.58 APPROVED
Note: Per the approved 9VAC25-870-66 calculations, this development meets channel
- --
protection compliance by having apost-development 1-year peak SCS design storm outflow / Total= 15.46 cfs 6.93 cfs ! / �_�_ - - \,
less than or equal to 1.48 cfs.
( � /APPROVED FINAL BUILD OUT NOTES: �
-Roadways
euildout Impervious Area Summary - - - -� - �� - ' •�
al. THE LAYOUT SHOWNINCLUDES THE - OIJtFlOW Summary: (10-Year Storm Event) APPROVED / � �-: - �-� '� \•- s � ♦�� ♦ � �� ��■.\ ' "+:�
(*Roadways 188,477 sf a
GURRENTLY N ER REVIEW.
A FINAL
VISION Pre -Development Post -Development : ' > - - �♦• �� „- `-
) 'Sidewalks &IOU Driveways 102,924 sf - CURRENTLY UNDER REVIEW. AFINAL
( 5Attached Lots where Half is Captured
4,600 sf
SUBDIVISION PLAN IS REQUIRED FOR THE _
6 Detached Lots where Half is Captured
6,000 sf
DEVELOPMENT OF THESE LOTS.
( 61 Attached Lots where Most or All is Captured
112,240 sf
,2. AMENDED SWM FACILITY 41A(LEVEL II WET -
POND) WAS SIZED FOR A MINIMUM DESIGN
Allis Ca ld
s were osp
22 ( Detached LothMt or Captured
44000 sf
-
TREATMENT VOLUME OF 68,039 cf. THIS
Approved Foothill IV Impervious Area
16,C85 sf
VOLUME WAS CALCULATED USING THE
474,326 sf
VRRM AND ASSUMES THE FULL BUILD OUT
DA'1A'
8.49 cfs
DA'1A'
0.98 cfs
DA'213'
1.89 cfs
DA 26
6.97 cfs
DA'3C'
1.81 cfs
0A'4D'
2.25 cfs
APPROVED \ =�
B
♦
FINAL UILDOUT DA#1A
21.64,dc.-
\ � CN=80 & Tc 0.23firs,
r i
V" ¢
* SUBAREA CONSISTING OF 10.89 ac. j ; ( / �.
includes Park Ridge Dr, Glenbrook Subdvlsion, Eastern Connector Total= 53.23 cfs 32.63 cfs
-Road Ext.) IMPERVIOUS AREAS & 10.75 ac. OF - / , ♦_ _ _ _ _- L I /....... , , ' '.' \N .;;\
/ MANAGEDTURF. THE CAPACITY OF THE _,�\ �'/ ,,� / / i N,kF,"m• / /. -_ l /'- `. \ \ S v \;- ,1 I __ --me .A
DA#28 UPDATED FOR GtENBROOK 2 Final Bwltlurtlm rviom Area surninnar, APPROVED FACILITY EXCEEDS THIS DESIGN -J \ '/ ' ' -/ ♦ 'i '' ' a `% i':v ` " " - '
iFor Water Qua naty& Quality Calculations) REQUIREMENT. \ ss / / �: / / y / / \ ♦ _ .. \. \�:. \ \ S -/ _ / .\ - \
:.(Water Quality and Quantity Calculations) .THE PROPOSED GLENBROOK PHASE II �� \-- - /� /�//' /.. o v ♦ •s \ % \s j \ -.
BUI LDOUT WILL UTILIZE SWM FACILITY #2B,
/Roadways 97,477 sf
Sidewalks& 15 Driveways 27,948 sf WITHIN THE FOOTHILL PHASE IV/V PROJECT. / , , / ♦ �_� `� `; �\ ' ' j t /%M1 :.\ \' l I --
THEEXISTINGDETENTIONBASINWILLBE
36 Detached Lots where Most or All is Captured (1767 sf 63,612 sf '// • ��-' '' ` \'� s y-\' \ `�\ \ \,''.�= ll \ \'' I \
P UPGRADED WET POND.
Approved Foothill IV Impervious Area 49,658 sf THE OVERALL PROJECT SITE WATER QUALITY
,. / / _ /t r / \\ v// `�'t\ ■ \
Proposed DA #2B Total Impervious Area 238,695 sf MEASURES WILL REQUIRE AN ADDITIONAL - / ( �� ,r' \\, / ■ '\ \
1.7PHOSPHOROUS REMOVAL BE
A #28245,179
Approved Di Impervious Area s(
METT PERPER THE VRRM. THIS LOAD WILL BE
01UPoAlEO FOR GLENBROOK 2 Final BUildout impervious Area Summary TREATED BY PAYMENT INTO THE
For Water Qua ntit&Quall Calculations \ P / ♦ /, /// \. y `.. ,,. ` \./ \ •' \ l _ ♦ \
( v N I LICKINGHOLE PRO RATASHAREWHICH WILL
(For Glenbrook at Foothills Water Quality&Quantity Calculations) REMOVE 30%OF THE 7.89 LB/YR REMAINING
.. fit' ` \' l° -� l �• l / / / ' ,`\ :\. A',
p Bmlon Drive (Portion) & Road A 10,449 sf LOAD FROM SWM FACILITY #2B (2.37 LB/YR), �, �.. '-�, .. �,7 / „ - -.r ; , �/ / : / <�' ,:' � \/ � „ \ , : L
EXCEEDING WATER QUALITY _ , ♦/: ....( / is /\ �:�:\ / I.
Sidewalks&4 Driveways 5,247 sf ',\ .�.f ( / / /F, F W/ A ELEV.-1 & ♦ /: :. �' / \, < \\ / -.:.\\ / / )..I ,�' \ \
REQUIREMENTS.
^1Detached Lots where Half is Captured 1,000 sf \ ''s '' '��r � i ♦ / - � _ �r : ,1 I / \
DRAINAGE AREA #3C AND #4D SHALL � -. /' /, ,f � y = _,. 9' CF w LEY.=1 `,... / .. �� /\ \✓ ;,�_ I _, !:I I / /;
3De[ached Lots where Most or All is Captured 6,000 sf RELEASE STORMWATER DISCHARGE TO THE
D
Proposed DA #3C Total impervious Area 22,6%sf CREEK. THE OVERALL CONTRIBUTING \ .: ', // ./ /_ i� •'.' � / �- - - i♦ ;' � , >: `, �., ";� -. // /.-. ,l ---'i '.,. II \ i ,�.
DRAINAGE AREA TO THE CREEK AT THIS SITE
Approved DA#3CTotal Impervious Area 21,696 sf IS 134 ACRES. THE PROPOSED DRAINAGE
ISS \ ^.\d� i�'�7 /,' �/. \�.. � \�•.• ";`\,' 1 ' i. _ \
DA'1A'
25.44 cfs
DA'1A'
7.58 cfs
DA'213'
16.50 cfs
DA'26'
27.79 cfs
DA3C'
4.01 cfs
DA'4D'
4.54 cfs
SCOTT R. LINSZ
F�
Lic. No. 035791 a
PO 10/19/20�4
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DA#40 UPDATED FOR GU'.NBROOK 2 Final BUII#out Impervious Area Summary AREAS #3C AND #4D ARE 1.22 ACRES AND \ ' \\J " �` Y' , I) -
(For Water4ua ntity&4uality calculations) 1.04 ACRES, RESPECTIVELY, WHICH ARE LESS �< �vl - _ -'- \ ♦ --- -L / G / '�=! / i f. �� ',
(For Glenbrook at Foothills Water Quality&Quantity Calculations) THAN 1%OF THE TOTAL CONTRIBUTING - / I�
♦♦ 100 OF OLF w/ A ELEV.=3 & w
IDetached
union Drive (portion) 7,808 sf DRAINAGE AREA TO THE STREAM AT EACH IIG ;:'_" - -- i� L I, ;,.,n �f/-` \
f ♦ 165 OF CF w/ Q ELEV.-5
idewalks&SDriveways 5,854 sf OUTFACE, HENCE THE I%RULE APPLIES AND
THE OUTLETS MEET CHANNEL ADEQUACYLotswhereMostorAllisCaptured 12,000 sf
Proposed DA #4D Totallmpervious Area 26,662 sf ;, REQUIREMENTS. FUTURE
Total Impervious 23112 sf ti PHASE \\
p APPROVE) FINAL \
DA
\ 1.22 aC.
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v \ CN=76 & Tc-0.�� hrs c
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AND OPEN SPACE E SEMENT \, ^" _ 1 A ROVED FOOTHILL PHA IV /
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APPROVEDDA26 ❑ -�i APPRovEDFAcIurY l'i✓<� -_� ' 6y -�`- PLAN AMENDMENT#31S UPDATED WITH \L9 0
is f
PRE -DEVELOPMENT SCALE
1"=200' �� v - - s PPROVED FINAL BUILDOUT DA
APPROVED Tc=0.37 hrs ' �� � � - �� � _ � � I ' `I I �� i '.; 1
\ THE GLENBROOK PHASE 2 PROPOSED Q
Tc=0.29hrs. 100'OFOVERLANDFLOWATI%' w -i , -_ _ 13.Tc=0.46 LAYOUT. PROPOSED DA #2B DRAINAGE Z =
_ _ _. CN-76 & Tc 0.24 hrs.
Tc=0.08 hrs. (952' OF CHANNEL FLOW AT 4%) f
_ V)
( - -- PROPO�FINALBUILDouTDA#z6 ; ,% ,; �j � '� ' �. AREA AND IMPERVIOUS COVER ARE U �
�\ x cN=76&o.z4nr5. REDUCED IN THE PROPOSED PLAN. THE F--i
/ \
APPROVED ` - _ ,� I �1 PROPOSED DRAINAGE AREA IS 1 8 ac. LEI
I i a � z ` I ;' i �\, III � � - `\1� , / 3.3 �
l
FI
_ POE -DEVELOPMENT \\\ \ ' 6 I �� �{' fr ��` ;; , VERSUS THE APPROVED DRAINAGE AREA _ Z
\ ®- 1691ac. %� i `\ " '' - V yI !; f 111 • '� OF 13.46 ac. THE PROPOSED IMPERVIOUSUl
® - cNl-'P1&Tc=0.37hrs ,,� \\ \ �� �I , ! ♦ COVERIS238,695 5f, WHICH IS REDUCED O
000
r
� ''" ` v n � °, ( 'I, ;�+E� �I vv �dFROM THE APPROVED 245,179 sf. w >
LU
A EXISTING TREELINE v
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VA APPROVED I \'vOPRE-DEVELOPMENTLLDA #26�;
\ I 19.97 ac.A--4;=;', , ;,/�fBM Nz h
.. V /. \ J s_ ' �•/' V ".? . ^.�.,t 'TOP OF. MH 699A
Cli & TC=0.29 hrs. v /, A ,! : / . �, ' - 4.. ; �;r: y G ARHIC SCAI
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� VARIABLE WIDTH SWM, FOR�ST,-�'�
\ ® \ D.B. SOPS, PG. 664 \
\ AND OPEN SPACE EASEME T
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m
\\ EXISTING TREELINE
(TYP.)
\ APPROVED Tc=0.29 hrs
Tc=0.25hrs.(100'OFOVERLAND FLOW AT4%.\
PROPOSED FACILITY
� Tc=0.04 hrs. (500' OF CHANNEL FLOW AT 6%). _ Nil�.,�„
JOB NO.
112066
SCALE
AS SHOWN
SHEET NO.
5
EROSION &SEDIMENT CONTROL
MEASURES:
STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN ACCORDANCE
WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. STRUCTURAL
PRAC7CES USED IN THIS SECTION CONSIST OF THE FOLLOWING.
3.01 SAFETY FENCE.
A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE.
TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC.
APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED
UNSAFE BY VIRTUE OF POTENTIAL ACCESS BY 7HE PUBLIC.
3.02 CONSTRUCTION ENTRANCE.'
A STABILIZED PAVED CONSTRUCTION ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF
VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION SITE TO REDUCE THE AMOUNT OF
MUD 7RANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF.
CONSTRUCTION EN7RANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE
AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS.
3.05 SILT FENCE:
A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC S7RETCHED
ACROSS AND ATTACHED TO SUPPORTING POSTS AND ENTRENCHED, TO INTERCEPT AND DETAIN
SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUC77ON OPERATIONS IN
ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE, AND TO DECREASE THE VELOCITY OF
SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS
SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT
LADEN RUNOFF FROM SHEET FLOW AS INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY
AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION &
SEDIMENT CONTROL HANDBOOK (VESCH).
3.07 STORM DRAIN INLET PRO7EC770N:
A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP
INLET OR CURB INLET. TO PREVENT SEDIMENT FROM ENTERING STORM DRAINAGE SYSTEMS
PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA. INLET PROTEC7ON APPLIES
WHERE STORM DRAIN INLETS ARE TO BE MADE OPERATIONAL BEFORE PERMANENT
STABILIZATION OF THE CORRESPONDING DISTURBED DRAINAGE AREA.
3.09 TEMPORARY DIVERSION DIKE.,
A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT 7HE TOP OR BASE OF A SLOPING
DISTURBED AREA. TO DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM
UNPROTECTED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET. TO DIVERT
SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING FACILITY SUCH
AS A SEDIMENT TRAP OR SEDIMENT BASIN. USE WHEREVER STORMWATER RUNOFF MUST BE
TEMPORARILY DIVERTED TO PR07ECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON
SITE DURING CONSTRUCTION. THESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18
MONTHS OR LESS, WHICH CAN BE PROLONGED WITH PROPER MAINTENANCE.
3.11 TEMPORARY RIGHT-OF-WAY DIVERSION:
A RIDGE OF COMPACTED SOIL OR LOOSE ROCK OR GRAVEL CONSTRUCTED ACROSS DISTURBED
RIGHTS -OF -WAY AND SIMILAR SLOPING AREAS. TO SHORTEN THE FLOW LENG7H WITHIN A
SLOPING RIGHT-OF-WAY 7HEREBY REDUCING THE EROSION P07EN77AL BY DIVERTING STORM
RUNOFF TO A STABILIZED OUTLET. GENERALLY EARTHEN DIVERSIONS ARE APPLICABLE WHERE
THERE WILL BE LITTLE OR NO CONSTRUCTION TRAFFIC W17HIN THE RIGHT-OF-WAY. GRAVEL
STRUCTURES ARE MORE APPLICABLE TO ROADS AND OTHER RIGHTS -OF -WAY WHICH
ACCOMMODATE VEHICULAR 7RAFFIC.
A TEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE S7RUCTURE
FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. TO
DETAIN SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS IN "WET" AND "DRY" STORAGE
LONG ENOUGH FOR THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. APPLIES BELOW
DISTURBED AREAS WHERE THE TOTAL CONTRIBU77NG DRAINAGE AREA IS EQUAL TO OR
GREATER THAN THREE ACRES THERE MUST BE SUFFICIENT SPACE AND APPROPRIATE
TOPOGRAPHY FOR THE CONSTRUCTION OF A TEMPORARY IMPOUNDMENT.
STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPA77NG DEVICES PLACED
AT THE OUTLETS OF PIPES OR PAVED CHANNEL SECTIONS. TO PREVENT SCOUR AT
STORMW47ER OUTLETS, TO PROTECT 7HE OUTLET STRUCTURE, AND TO MINIMIZE THE P07EN77AL
FOR DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED
STORMW47ER FLOWS APPLICABLE TO 7HE OU7LETS OF ALL PIPES AND ENGINEERED CHANNEL
SECTIONS.
J. 19 RIPRAP:
A PERMANENT EROSION -RESISTANT GROUND COVER OF LARGE LOOSE ANGULAR STONE WITH
FILTER FABRIC OR GRANULAR UNDERLINING. TO PROTECT THE SOIL FROM THE EROSIVE
FORCES OF CONCENTRATED RUNOFF, SLOW THE VELOCITY OF CONCENTRATED RUNOFF WHILE
ENHANCING THE P07EN77AL FOR INFIL7RATION, AND TO STABILIZE SLOPES WITH SEEPAGE
PROBLEMS, AND/OR NON -COHESIVE SOILS. USE WHEREVER SOIL AND WATER INTERFACE AND
THE SOIL CONDITIONS, WATER TURBULENCE AND VELOCITY, EXPECTED VEGETA7VE COVER, ETC.,
ARE SUCH THAT THE SOIL MAY ERODE UNDER 7HE DESIGN FLOW CONDITIONS.
3.31 TEMPORARY SEEDING
THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING
WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS TO REDUCE EROSION AND
SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL
GRADE FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND
RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS
EXPOSED DURING CONSTRUCTION UNTIL PERMANENT VEGETATION OR 07HER EROSION CONTROL
MEASURES CAN BE ESTABLISHED.
3.32 PERMANENT STABILIZATION:
THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLANTING
SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS TO
PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTABLE TO
SITE CONDITIONS, AND ALLOWS SELECTION OF 7HE MOST APPROPRIA7E PLANT MATERIALS TO
IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF
CONSTRUCTION ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETA7VE COVER.
3.38 TREE PRESERVATION AND PROTECTION:
PR07ECT70N OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND
DISTURBING AND CONSTRUCTION ACTIVITY. TO ENSURE THE SURVIVAL OF DESIRABLE TREES
WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WATERSHED
PROTECTION, LANDSCAPE BEAUTIFICATION, DUST AND POLLUTION CON7ROL, NOISE REDUCTION,
SHADE AND 07HER ENVIRONMENTAL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM
FOREST TO URBAN -TYPE USES. APPLIES IN TREE -INHABITED AREAS SUBJECT TO LAND
DISTURBING ACTIVITIES.
3.39 DUST CONTROL:
REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND
CONSTRUCTION ACTIVITIES. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM
EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY
DOCCECONTI MEASURES SHALL B1 E EMPLOYED R�O PREVENT SURFACE AND AIR
DUSTMOVEMENT OF SOIL DESCRIPTION
DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH 7HE
VESCH. 4E - ASHE LOAM, 257 TO 45% SLOPES. SOIL IS SOMEWHAT EXCESSIVELY
DRAINED, WITH MORE THAN 80 IN. DEPTH TO THE WATER TABLE. MADE
FROM RESIDUUM WEATHERED FROM GRANITE AND GNEISS, THIS SOIL HAS
CONVEX DOWN AND ACROSS -SLOPE SHAPE. 7H1S SOIL HAS NO
FREQUENCY OF BONDING OR FLOODING AND A VERY LOW TO HIGH KSAT
WITH MODERATE LOW WATER CAPACITY.
5B - BELVOIR LOAM-27 TO 7% SLOPES. SOIL IS SOMEWHAT POORLY DRAINED,
WITH 12 TO 24 INCHES TO THE WATER TABLE. MADE FROM RESIDUUM
WEATHERED FROM GRANITE AND GNEISS, THIS SOIL HAS CONCAVE
DOWN -SLOPE AND CONCAVE ACROSS -SLOPE SHAPE. NO FREQUENCY OF
PONDING OR FLOODING, AND MODERATELY LOW TO MODERATELY HIGH
KSA T.
7B - BRA DD0CK CLAY LOAM-2% TO 77. SLOPES. SOIL /S WELL DRAINED, WITH
MORE THAN 80 INCHES TO THE WATER TABLE. MADE FROM ALLUVIUM
AND COLLUWUM DERIVED FROM ACID CRYSTALLINE ROCKS, THIS SOIL HAS
CONVEX DOWN -SLOPE AND LINEAR ACROSS -SLOPE SHAPE. NO
FREQUENCY OF BONDING OR FLOODING, HIGH WATER CAPACITY, AND
MODERATELY HIGH TO HIGH KSAT
37C3 - HAYESVILLE CLAY LOAM-7% TO 151w SLOPES. SOIL IS WELL DRAINED,
WI7H MORE THAN 80 INCHES TO 7HE WATER TABLE. MADE FROM
RESIDUUM WEATHERED FROM GRAN17F AND GNEISS, THIS SOIL HAS
CONVEX DOWN -SLOPE AND CONVEX ACROSS -SLOPE SHAPE. NO
FREQUENCY OF BONDING OR FLOODING, HIGH WATER CAPACITY, AND
MODERATELY HIGH TO HIGH KSAT
REFERENCE: WEB SOIL SURVEY ONLINE DATABASE, FOUND AT
h t tp: //web soilsurvey.nres. usdo. go vloppIWebSoilSurvey.ospx
EROSION CONTROL NOTES
ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION
AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND
MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF
THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA
REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL
REGULATONS.
ES-2: THE PLAN APPROVING AUTHORITY MUST BE N077FIED ONE WEEK PRIOR TO
THE PRE-CONS7RUCTION CONFERENCE, ONE WEEK PRIOR TO THE
COMMENCEMENT OF LAND DISTURBING ACTIVITY; AND ONE WEEK PRIOR TO
THE FINAL INSPECTION.
ES-J.-ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR
TO OR AS THE FIRST STEP IN CLEARING.
ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL
BE MAINTAINED ON THE SI7F AT ALL TIMES.
ES-5.-PRIOR TO COMMENCING LAND DISTURBING ACTIO77ES IN AREAS OTHER THAN
INDICATED ON THESE PLANS (INCLUDING BUT NOT LIM17ED TO, OFF-S17E
BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A
SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND
APPROVAL BY THE PLAN APPROVING AUTHORITY.
ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDIT70NAL
EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND
SEDIMENTAT70N AS DETERMINED BY THE PLAN APPROVING AUTHORITY.
ES-7.-ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL
MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING
SITE DEVELOPMENT UNTIL FINAL STABILIZATION /S ACHIEVED.
ES-8: DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN
APPROVED WATER FILTERING DEVICE.
ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES
PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT
ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS
OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY.
EROSION CONTROL NOTES
1. THE PLAN APPROVING AUTHORITY MUST BE N077FIED ONE WEEK PRIOR TO THE
PRE-CONS7RUC77ON CONFERENCE, ONE WEEK PRIOR TO 7HE COMMENCEMENT OF LAND
DISTURBING ACTIVITY AND ONE WEEK PRIOR TO THE FINAL INSPECTION.
2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED
ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND
SEDIMENT CONTROL HANDBOOK AND NRGINIA REGULATIONS VR 625-02-00 EROSION AND
SEDIMENT CONTROL REGULATIONS.
J. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS
THE FIRST STEP IN CLEARING.
4. A COPY OF THE APPROVED EROSION AND SEDIMENT CON7ROL PLAN SHALL BE
MAINTAINED ON THE SITE AT ALL TIMES.
5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES /N AREAS OTHER THAN INDICATED
ON THESE PLANS INCLUDING BUT NOT LIMITED TO OFF -SITE BORROW OR WASTE
AREAS THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO
7HE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AU7HORITY.
6. 774E CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION
CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS
DETERMINED BY 7HE PLAN APPROVING AUTHORITY.
7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT
ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING S17E DEVELOPMENT UN77L
FINAL STABILIZATION IS ACHIEVED.
8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING
DEVICE.
9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND
AFTER EACH RUNOFF PRODUCING RAINFALL EVENT ANY NECESSARY REPAIRS OR
CLEANUP TO MAINTAIN THE EFFEC77VENESS OF THE EROSION CONTROL DEVICES SHALL BE
MADE IMMEDIATELY.
10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA.
11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL
SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER
DEBRIS.
12. BORROW OR WAS7E AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER
ZONING ORDINANCE SECT70N 5.1.26..
13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WI7H SECTION 13-301 OF
7HE CODE OF ALBEMARLE.
14. BORROW FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL
BE LIMITED TO THE HOURS OF 7.•OOAM TO 9:OOPM.
15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAN
MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS
PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY
PUBLIC STREET BECAUSE 0 SLIDES SINKING OR COLLAPSE.
16. 7HE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT
TO PERMANENT STORMWATER MANAGEMENT FACIL177ES WHERE APPLICABLE ALL EROSION
CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT,
UNIT BUILDING OR OTHER PORTION OF 7HE PROPERTY.
17. TEMPORARY STABILIZAT70N SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO
BE AT 75 LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A
50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO
CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET
S7RAW MULCH IS TO BE APPLIED AT BOLBS/10OSF. ALTERNATIVES ARE SUBJECT TO
APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR.
18. PERMANENT STABILIZA7ON SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND
MULCH. AGRICUL7URAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS 1000SF
INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT
1000LBS ACRE AND CONSIST OF A 10-20-10 NU7RIENT MIX. PERMANENT SEEDING SHALL
BE APPLIED AT 180LBS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND
0-5% PERENNIAL RYECRASS OR KENTUCKY BLUEGRASS. S7RAW MULCH IS TO BE APPLIED
AT 80LB5110OSF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION
CONTROL INSPECTOR.
19. MAINTENANCE.. ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH
RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR
IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME
IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY
TO ACHIEVE A GOOD STAND OF GRASS SILT FENCE AND DIVERSION DYKES WHICH ARE
COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED
IMMEDIATELY.
20. ALL TEMPORARY EROSION AND SEDIMENT CON7ROL MEASURES ARE TO BE REMOVED
WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED,
SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR.
21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WITHIN 1 YEAR OF
THE DATE OF APPROVAL. (WATER PROTECTION ORDINANCE SECTION 17-204G)
22. PERMANENT VEGETATON SHALL BE INSTALLED ON ALL DENUDED AREAS WITHIN NINE (9)
MONTHS AFTER THE DA7E 7HE LAND DISTURBING ACT70TY COMMENCED. (WATER
PR07ECT70N ORDINANCE SECTION 17-2078)
DESCRIPTION OF EROSION & SEDIMENT
EROSION CONTROL NOTES & NARRATIVE
CONTROL
MEASURES:
PURPOSE.,
THE PURPOSE OF THIS LAND -DISTURBING ACTIVITY IS TO CREATE THE ROADWAY AND LOTS FOR GLENBROOK
EROSION AND SEDIMENT CONTROL MEASURES,
PHASE ll. THE TOTAL ACREAGE TO BE DISTURBED IS 70.93 ACRES.
IT /S ANT7CIPATED THAT A SEDIMENT BASIN, CONSTRUCTION ENTRANCE,
EXIS77NG SITE CONDITIONS.
CONSTRUC7ION ROAD STABILIZATION, RIGHT OF WAY DIVERSION, DIVERSION DIKE,
THE EXISTING PARCEL IS VACANT AND HILLY. THERE IS AN EXISTING STREAM THAT RUNS ALONG THE
OUTLET PROTECTION, INLET PROTECTION, TREE PROTECTION AND SILT FENCE WILL
SOUTHERN SIDE OF 7HE PARCEL. THE S7REAM FLOWS WEST TO EAST ALONG 7HE PROPERTY LINE. THE SITE IS
GENERALLY WELL DRAINED AND SLOPES FROM THE NORTH TO THE SOUTH. EROSION AND SEDIMENT CONTROL
BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING WILL BE
MEASURES HAVE BEEN DESIGNED TO CONFORM TO THE EXIS77NG SI7F SLOPE AND PROTECT THE PERIMETER
USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE ACTIVITIES. TEMPORARY
STREAMS AND ADJACENT PROPERTIES.
STOCKPILE AREAS WILL BE MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED
ADJACENT AREAS,•
FROM AREAS TO BE GRADED AND STORED FOR LATER SPREADING. STOCKPILE
7HE SITE /S POSITIONED BETWEEN GLENBROOK AT FOOTHILLS PHASE I SUBDIVISION TO THE NORTH, FOOTHILL
LOCA77ONS SHALL BE ON SITE AND SHALL BE STABILIZED WITH A TEMPORARY
CROSSING ll TO THE WEST, THE CONNECTOR ROAD/EASTERN AVENUE AND FOOTHILL CROSSING SUBDIVISION TO
VEGETATVE COVER. PERMANENT SEEDING WILL BE PERFORMED FOR ALL AREAS
THE EAST, AND WESTLAKE HILLS TO 7HE SOUTH. THE GLENBROOK AT FOOTHILLS SUBDIVISION IS CURRENTLY
WHICH WILL NO LONGER BE EXCAVATED AND WHERE CONSTRUC770N ACTIV177ES
UNDER CONS7RUCT7ON. 7HE FOOTHILL CROSSING SUBDIVISION AND THE LOTS LOCATED ALONG JONNA STREET
ARE OCCUPIED.
HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED FOR ALL
OFFSITE LAND DISTURBANCE.•
DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE.
THERE IS NO OFFSITE LAND DISTURBANCE REQUIRED WITH THIS PLAN.
SELECTION OF SEED MIXTURE WILL DEPEND ON THE 77ME OF YEAR APPLIED.
CRI77CAL AREAS:
TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL
NO PRESERVED STEEP SLOPES ARE PROPOSED TO BE IMPACTED. STREAMS, STREAM BUFFERS, SWM FOREST &
BE LEFT DORMANT FOR MORE THAN SEVEN DAYS. THESE AREAS SHALL BE
OPEN SPACE EASEMENTS AND OCCUPIED RESIDENTIAL LOTS ARE TO BE PROTECTED. SILT FENCE SHALL
SEEDED WITH FAST GERMINATING VEGETATION IMMEDIATELY FOLLOWING GRADING
PROTECT EXISTING HEATHERFIELD LANE.
OF THOSE AREAS SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF
OIL
YEAR APPLIED.
SEES BOUNDARIES AND NAMES ON THE PHASE I EROSION AND SEDIMENT CONTROL PLAN, AND THIS SHEET
FOR THE SOIL DESCRIP77ONS.
3.01 SAFETY FENCE - SAFETY FENCE WILL BE INSTALLED AROUND THE
SEQUENCE OF CONSTRUCTION:
PROPOSED SEDIMENT BASIN.
1. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE-CONSTRUC77ON MEETING AS REQUIRED.
3.02 CONSTRUC7ION ENTRANCE - ONE CONSTRUCTION ENTRANCE SHALL BE
2. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE
INSTALLED. THIS WILL BE THE ONLY POINT OF INGRESS AND EGRESS TO THE
APPROVAL FROM THE ESC INSPECTOR ON THE PROJECT.
SITE CARE WILL BE TAKEN TO PROTECT ADJACENT ROADWAYS FROM TRANSFER
J. CONTRACTOR SHALL IDEN77FY THE LIMITS OF DISTURBANCE AND THE SWM FOREST AND OPEN SPACE
OF SEDIMENT
EASEMENTS AND INSTALL TREE PROTECTION TAPE ALONG THE BOUNDARIES AS SHOWN ON THE ESC PHASE
IV PLAN. THE CONTRACTOR SHALL INSTALL TREE PR07EC77ON FENCING WHERE INDICATED ON THE PLANS
3.05 SILT FENCE- SILT FENCE WILL BE PLACED ON THE DOWNSTREAM SIDE OF
BEFORE ANY S17E DISTURBANCE SHALL TAKE PLACE. CONTRACTOR SHALL ENSURE 7HAT TREES TO BE
DISTURBANCE WHERE NOTED ON THE PLANS.
SAVED ARE FLAGGED ALONG THE LIMITS OF CLEARING.
307 STORM DRAIN INLET PROTECTION- /P WILL BE INSTALLED ON EACH
4. INSTALL THE PAVED CONSTRUCTION ENTRANCE WITH WASH RACK AS SHOWN ON THE PLANS.
PROPOSED INLET AS SHOWN ON THE PLANS
CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE ROUTES INTERSECT PAVED
3.09 TEMPORARY DIVERSION DIKE- A DIVERSION DIKE WILL BE USED AROUND
PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIM1ZE THE TRANSPORT OF SEDIMENT BY (VEHICULAR)
THE PERIMETER OF S17E DISTURBANCE WHERE SHOWN ON 7HE PLANS TO DIRECT
TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD
THE ROAD SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE
RUNOFF TO ON-S/7E SEDIMENT CONTROL FACILITIES.SURFACE,
REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPOR77NG TO A SEDIMENT CONTROL
311 TEMPORARY RIGHT-OF-WAY DIVERSION- A TEMPORARY RIGHT-OF-WAY
DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS
DIVERSION IS PROPOSED AT THE CONSTRUCT70N ENTRANCE, LOCATED ON THE
MANNER. INSTALL THE WASH RACK UPHILL FROM THE PROPOSED SEDIMENT BASIN LOCATION. A DIVERSION
CONNECTOR ROAD.
SHALL BE INSTALLED WHERE SHOWN ON THE PLANS, DIREC77NG RUNOFF FROM THE SIT[, WASH RACK,
314 TEMPORARY SEDIMENT BASIN -TEMPORARY SEDIMENT BASIN WILL BE
CONSTRUCTION ENTRANCE AND RIGHT-OF-WAY DIVERSION TO THE SEDIMENT BASIN. ACSA WILL DETERMINE
INSTALLED WHERE SHOWN ON THE PLANS.
THE APPROPRIATE METHOD OF SUPPLYING WATER TO THE WASH RACK. PARKING AND CONSTRUCTI0N
ENTRANCE AREAS SHALL BE CLEARED OF ALL VEGETATION R0075 OR OTHER OBJEC770NABLE MATERIALS
3.18 OUTLET PROTECTION- TO BE PROVIDED AT THE OU7FALL OF DRAINAGE
BEFORE CONSTRUCTION ROAD STABILIZAT70N IS INSTALLED.
PIPES WHERE SHOWN ON PLANS.
5. INSTALL THE REMAINING INITIAL CONSTRUC770N MEASURES AS SHOWN ON THE PHASE l EROSION CONTROL
3.19 RIPRAP- RIPRAP SHALL BE INSTALLED AS OUTLET PROTECTION WHERE
PLAN SHEETS. THIS INCLUDES THE SEDIMENT BASIN SILT FENCE WITH WIRE BACKING AND THE DIVERSION
SHOWN ON THE PLANS, AS WELL AS AT THE UTILITY STREAM CROSSING
BERMS STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS BERMS
TRANSITIONS.
AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE
331 TEMPORARY SEEDING- TEMPORARY SEEDING SHALL BE APPLIED WHERE
CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL
BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE.
SHOWN ON THE PLANS.
6. ONCE ALL THE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE PHASE l EROSION
3.32 PERMANENT SEEDING- PERMANENTLY SEEDING SHALL BE APPLIED WHERE
CONTROL PLAN AND THE INSPECTOR HAS APPROVED THE EROSION CONTROL MEASURES, THE CONTRACTOR
SHOWN ON THE PLANS
CAN BEGIN GRADING OPERATIONS. THE CONTRACTOR SHALL ENSURE THE EROSION & SEDIMENT CONTROL
338 TREE PRESERVA77ON AND PROTECTION- TREE PRESERVA77ON FENCING
MEASURES SHOWN ON THE PHASE H EROSION CONTROL PLAN SHEETS ARE INSTALLED. MEASURES
SHALL BE INSTALLED WHERE SHOWN ON THE PLANS NO TREES SHALL BE
INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE
ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE.
HARMED OUTSIDE OF THE LIMITS OF TREE PROTECTION FENCING.
7. THE CONTRACTOR SHALL ROUGH GRADE THE ROAD AND ITS 77E-IN SLOPES TO THE CONTOURS SHOWN ON
3.39 DUST CONTROL- DUST CON7ROL SHALL BE APPLIED THROUGHOUT THE SITE
THE ESC PHASE V PLAN.
WHERE SHOWN ON THE PLANS.
8. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN
DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION
STORMWATER MANAGEMENT.-
SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL
STORMWA7ER QUANTITY AND UTILITY COMPLIANCE IS MET THROUGH THE USE OF
Q Q
REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT STABILIZAT70N SHALL E
B B
( )
SWM FOREST & OPEN SPACE EASEMENTS AND WET PONDS. SEE APPROVED
APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR.
9. THE CONTRACTOR CAN THEN BEGIN INSTALLING THE PROPOSED UTILITIES, CURB AND GUTTER, STORM
FOOTHILL CROSSING AMENDMENT /fr3 VSMP PLANS AND CALCULATIONS
SEWER AND THE CONNECTOR ROAD. IMMEDIATELY FOLLOWING THE INSTALLATION OF THE DROP INLETS,
INLET PROTECTION SHALL BE INSTALLED. INLET PROTEC7ON SHALL BE INSPECTED AFTER EACH RAINFALL
MAINTENANCE.-
EVENT AND REPAIRS SHALL BE MADE AS NEEDED. IF THE STONE FILTER BECOMES CLOGGED WITH
SEDIMENT SO THAT IT NO LONGER ADEQUATELY PERFORMS ITS FUNCTION, 7HE STONE MUST BE PULLED
IN GENERAL, DURING CONSTRUCTION THE RLD OR CONTRACTOR ON -SITE WILL CHECK
AWAY AND CLEANED AND/OR REPLACED. INSTALL ANY REMAINING EROSION CONTROL ITEMS AS SHOWN
ALL EROSION AND SEDIMENT CONTROL MEASURES DAILY AND AFTER EACH
ON THE ESC PHASE Vl PLAN.
SIGNIFICANT RAINFALL. MONITORING REPORTS WILL BE REQUIRED FROM THE RLD IF
10. NO ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE INSPECTOR GIVES
NEEDED. SPECIFIC ATTENTION WILL BE GIVEN TO THE FOLLOWING ITEMS:PERMISSION.
a. SEDIMENT BASINS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE WITH THE
VIRGINIA EROSION &SEDIMENT CONTROL HANDBOOK.
11. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND SEDIMENT
ET PROTECTION AND GRAVEL OUTLETS WILL CHECKED REGULARLY FOR
b. INLET
NLDIMENT
CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN
SEBUILDUP THAT WILL PREVENT PROPER DRAINAGE. IF THE GRAVEL IS
SE A
ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK.
CLOGGED BY SEDIMENT, THE GRAVEL WILL BE REMOVED AND CLEANED, OR IT WILL
12. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER
BE REPLACED.
FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS
c.ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR
07HERWSE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND 7HE DISTURBED
DETERIORAT70N OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL
SOIL AREAS RESULTING FROM THE DISPOS177ON OF TEMPORARY MEASURES SHALL BE PERMANENTLY
BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHED HALF WAY TO
STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION.
THE TOP OF THE BARRIER.
d. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND
IS MAINTAINED. AREAS SHOULD BE FER77LIZED AND RESEEDED AS NEEDED.
IN CASE OF EMERGENCY, THE PRIMARY CONTACT FOR THE PROJECT WILL BE THE RLD
OR CONTRACTOR ON -SITE THE CONTRACTOR WILL BE DETERMINED AT 774E TIME THE
CONTRACT IS AWARDED. IN ADDITION THE OWNER MAY BE CONTACTED, MR. ALAN
TAYLOR. UPON COMPLETION OF THE PROJECT THE OWNER WILL BE RESPONSIBLE
FOR SITE MAINTENANCE.
TABLE 331-B
ACCEPTABLE
TEMPORARY SEEDING PLANT MATERIALS
-QUICK REFERENCE FOR ALL REGIONS"
Rate
Planting Dates
SKcies
lbs. acre
Sept. 1 - Feb. 15
50/50 Mu of
Annual Ryegrass
multi-flomm)multi-flommm)
(Lolium
&
50 - 100
Cereal (Winter) Rye
(Secale ttre {Sec l ile ttre;Ve)
Feb. 16 - Apr. 30
Annual Ryegrass
(Inlium multi-flomm)
60 - 100
May 1 - Aug 31
German Millet
(&lar'a italim)
50
Source: Va. DSWC
TABLE 3.39-A
ADHESIVES USED FOR DUST CONTROL
Water Application
Dilution Type of Rate
Adhesive (Adhesive: Water) Nozzle Gallons/Acre
Anionic
Asphalt Emulsion 7:1 Coarse Spray 1,200
Latex Emulsion 125:1 Fine Spray 235
Resin in Water 4:1 Fine Spray 300
Acrylic Emulsion
(Non -Traffic) 7:1 Coarse Spray 450
Acrylic Emulsion
(Traffic) 35:1 Coarse Spray 350
Source: Va. DSWC
La
i
T d ,
L SECTION A -A
PIPE OUTLET TO FLAT AREA W17H NO DEFINED CHANNEL
d
PLAN
SECTION A -A
OP PIPE OUTLET CONDITIONS
NO SCALE
MTER FABRIC
ENTRENCHED a•
COMPACTED SOIL h 9 IDNBt01E •I -
I� IJ �TLI-
uIm-II I -Lr�I=11 lF I- II=I-I I
T1-I�I 1m II� IlT
L�II 1�1�1111�11�11=IIIJ1= -
e• 1@t�OY �~
Bo TEMPORARY 24" DIVERSION BERM
1. SET POSTS AND EXCAVATE A 4"X4"
TRENCH UPSLOPE ALONG THE LINE
OF POSTS.
2. STAPLE WIRE FENCING TO THE POSTS.
SILT FENCE
sF (WITH WIRE SUPPORT)
NO SCALE
Paved camtruction entrance for erosion control plans
IsT9UOd1
'. ESS 3 SM-1A ASv"4Iax '0-
CIX _F.
]S
: AccREu
PROFILE
70• MIN.
�TIV
:➢M'.-. e. "i-'. ASP y PAVED
wwSMaACR
€nsn"D
It 2x PAVEVI NI
� 12'Ma••
•MUS' ENIENJ FA_ arDtN L-0 !-TOSEDIITME ONNWIGC
0 ENMENT
AND
a INCRI [CRESS TRAP"w. DEVICE
IWERATgN
PJBN
IY MN. H
a% TO
rRA
SECTION A -A
a oral t L't Ilr wi NI ssaa ! tl A Rluwl wt rr tap of 1 ewN I u P ae , ummwwl 1 ekq bako
AuNoH rah-r mipplym a wa 11 II Hitha ,6awdo, of 1 ' wataw for adequMe
tol69blll pleAaue Wadi watt" uaw br ,aalwd ao'aN hwu the 01"Mre to an
applocN eetdug as to Ianorr snlanal as .r+Wnnll •ha0 be yln'mlal buw
alnwa stww AIAum, CII of walnrnmsrs
PAVED WASH RACK
I
I II
_I
k f:
Cat•.
I
r�..
Jill/
•iY'i I'i'i'i
•ti '.�i : �.•�
:•>ll
-_� 1 Y_- i
i sue`-.-.�9y�,.•r.
•hw
i7
i is I
I
I1�
W
Source: Adapted from Comed Plastics
and Plate 3.01-1
DO REsjLjERsU3IiillIn
TOTAL LBS
GENERAL SLOPE (3:1 OR LESS) PER ACRE
KENTUCKY 31 fL' 1- 128 LBS.
RED TOP GRASS 2 LBS.
SEASONAL NURSE CROP 20 LBS.
SEASONAL NURSE CROP 150 LBS
FEBRUARY 16 THROUGH APRIL ANNUAL RYE
MAY 1 THROUGH AUGUST 15 FOXIAIL MILLET
AUGUST 16 THROUGH OCTOBER ANNUAL RYE
NOVEMBER THROUGH FEBRUARY 15 WINTER RYE
NOTES:
1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL
TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32.
2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION
OF SEED APPLICATION, IN ,ACCORDANCE W/ VESCH STD 3.35.
PS PERMANENT SEEDING SCHEDULE
NO SCALE
(STD. & SPEC. 3.32 OF VIRGINIA EROSION &
SEDIMENT CONTROL HANDBOOK, 3RD ED.)
CURB INLET
BLOCK
WIRE SCREE
CRAWL• FILTER
OR #5 COARSE AGGREGATE.
OBLOCK & GRAVEL CURB INLET 07-$
IP SEDIMENT FILTER
NO SCALE
3 ATTACH THE FILTER FABRIC TO
THE WIRE FENCE AND EXTEND
IT INTO THE TRENCH.
I i
H
lam/ r�� _ I I �
r-
4. BACKFILL AND COMPACT THE
EXCAVATED SOIL.
FLOW
1 1 1-1 I' - if � T I I-
EXTENSION OF FABRIC AND WIRE INTO THE TRENCH.
SCOTT/R. CITLLINSZ
Lic. No. 035791,E
pow 10/19/20
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JOB NO.
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SCALE
N/A
SHEET NO.
8
LIMITS OFDISTURBANCE, / ; / `��� �G'% O 4 / / ! /' -� / / / / T UP
TOTAL AREA=ac.
--- -- io.
93 �. II � I 1 _ j / T "�� _ �SCOTT R. LINS`Z'
6
L
, _ / 1 iU. O. 357 - _ -- N 0
L
I i � !j � ` / '�w� �o�O� S`SI ONAL F'��� �
�, - - - -
D
40'g - ` - N
s
-� w,
ro� "�
w/ WIRE� v;�� ' z
lw
-- PROPERTY BOUNDARY (TYP.)to 6
lot
WIRE w - - —
SF
BACKING ♦ - — - - ��
_ -
U
�1 Z u m
— % Z. O J
'D INAGE DIVIDE (TYP.�) \ �� ey a z a
U
�y / I I _- 1 Y�i cn Co w
CONTRACTOR SHALL INSTALL A R/W J f °
FLOW DIREG1Ib ARROW TYP �� - �j / o aLu
r
- — �? _-y) DIVERSION ACROSS THE CONSTRUCTION RWD , O > Co
e - ENTRANCE AND DIVERT CE RUNOFF TO f I > a a
- _- w
6 BASIN. I V 1 w s
THE PROPOSED SEDIMENT o
- - -- TS IP
hYYY ;
' PROPOSED PAVED - • S� i
— - TS PROPOSED 18 DIVERSION. CONSTRUCTION ENTRANCE CE ,■
W
\ -
\ CONTRACTOR SHALL ENSURE 6
(12x70 MIN,) � WASH RACK � o
- - U
- DID POSITIVE SLOPE IS MAINTAINED. i CRS I /
- 658- - SOIL TYP BERM SHALL BE STABILIZED AS A
AA
- 76 66p-- FIRST STEP IN DISTURBANCE.
PROPOSED PHASE
TRACTOR
STAGING
&SP DRAINAGE AREA TO L - - w " N
PHASES I LOCATION
_ DIVERSION DIKE - 3.50 ac. OF PORTA-POTTIES � I -� � � � ¢ °' oo ,
N
O
S\ PROPOSED 18" DIVERSION. _, �/ I o
/ CONTRACTOR SHALL ENSURE _ THE FUELING TANK SHALL BE COMPLETELY PHASES I LC ®ON I 6S0I
/ POSITIVE
ERM ALL BE ST BILIZEDI NEDA A SURROUNDED BY A 2' DEEP, 2' WIDE EARTHEN OF 15cY D OIF TER 640 o
/ pDBHPHASE I DRAINAGE AREA BERM WITH A HEAVY MIL POLYETHYLENE
FIRST STEP IN DISTURBANCE. LINING, OR BE PLACED IN AN IMPERVIOUS o
NT BASIN
vF TO SEDIMENT @ PHASE I LOCATIO SOIL T S
�\ 37C3 9.09 ac. 650 OPEN -TOP DUMPSTER. THE PROPOSED BERM E
OR DUMPSTER SHALL CONTAIN FUEL IN THE OF FUELING AREA
PROPOSED STOCKPILE EVENT OF A SPILL. CONTRACTOR SHALL , pD
\ - SURROUNDED BY SILT FENCE _ ENSURE VOLUME CAPACITY IS 10% LARGER EXISTING STORMWATER 638 ✓�
THAN THE MAXIMUM VOLUME OF STORED FUEL. -
� $ � � •• \ MANAGEMENT FACILITY ' M �
TS *4z
CN
s,s \ SF w/ WIRE
- _ ^� _ _ 3
BACKING 64E - TS ` \ — — M
PR6POSED 18" DIVERSION.
CONTRACTOR SHALL ENSURE v 0
POSITIVE SLOPE IS MAINTAINED. DIDj` — LL.I a
a
- -
\ BERM SHALL BE STABILIZED AS A - N
DRAINAGE AREA TO FIRST STEP IN DISTURBANCE. �
- m- w
�� \� DIVERSION DIKE = 4,77 ac. , - / i- N uj o
\ s \� ` \ CONTRACTOR SHALL ENSURE DURING - _ �. ' IP � - ; �. � � � ` 1;" � N
EXISTING VARIABLE WIDTH SWIM, ESC PHASES I & II, WHEN THE BULK OF -
�. I �J i� EXISTING TREELINE (TYP.) \ / Q
� � �� THE CLEARING &GRADING OPERATIONS d��
Q
FOREST AND OPEN SPACE EA MENT 1 64o--- -- - OCCUR, THAT THE DOWNSTREAM DC , - � - \ \ z
� D.B. 5075, PG. 66q i
DIVERSION IS IN PLACE & FUNCTIONAL Q °
\ \ �AT THE END OF EACH DAY. ' / - I _j J
� I z
v �• �SOILTYPE ��' Q
( ) -
DRAINAGE DIVIDE TYP. - � I ,�
v PROPOSED "� 76 !� > _j J o
CONTRACTOR SHALLENSURE
N.■■,,
N\ B BERM SHALL BE STABILIZED E . \ PROPOSED SAFETY FENCE, It D KEEP
OUT" LL
- Q a O BENCH
GPL
o�o`N � 501 TYPE DID POSITIVE SLOPE IS MAINTAINED. WARNING UICK SAND KEEP OUT' I a Pa�Pt� gENOH �' o
FIRST STEP IN DISTURBANCE. IP ___I 3
r (n 0
a \ + TS PROPOSED 30" , + CKU
\ - CP STANDPIPE AI G -y" Z
DRAINAGE AREA TO SILT , R U \\
FENCE = 0.79 AC. - _ z o
i 638 ro� o - • ,• ,� i 1--i ILL ] m
PROPOSED AFFLES
1
w -
♦ w/ WIRE 0� �� \ A�/ _
1,
SF BACKING �' _ _ 24 �"'v k PROPOSEDFLATVDOTC SSAIC A 5 �� - �� U
\ , ' I OP AGGREGATE OUTLET PROTECTION w/ - U)
\ \ \ \ __g30 x / \ , SB / GEOTEXTILE FILTER FABRIC \ �'/�" 06 (OD
/ \ O /UNDERLAYMENT & VDOT STD. EW-1PC F- V / L
♦ I S ' `�LIMITS OF DISTURBANCE, �® ♦ 62/ L-l4', ww�6', wz=16', D=1s' Mw. • _ -- Lu O z W
TOTAL AREA=io.93 ac. \' ( _ Y O Z
B CKING 6 W. LL _t-n w
w WIRE � � � i � ,
�30
s
s - TREE \ - TP TROT _ �' -� o
_ - _� PR ECTION s
♦ \ _ - _ - - PROTECTION TP PRRCP BARREL s - - LLI Hi LLI o
• __ ----
s - ----_='--- EXISTINGVARIABLEWIDTHSWM --FOREST AND OPEN SPACE EASEMENT ��- BACKING.
SF -
-s-
-' s— --- s D.B.5075,PG.664----� - ---------- -
- - /
s ---- -- s + - — O
-- -- -- --- _` s _ C� x
- ----- --- _ _ s-- --s _ - N 0
s_
--- _
. __-- \
/ \ PROPOSED TREELINE TYP. - - - - - - _
( )Lu
U F_
Lu
F F
L��� w 5 TYPE V 1 _ O w E
- OIL TY / ce z °0 ` v
♦ -
.. 4 \ � � _ JOB NO. o
E \
� GRAPHIC SCALE �
�_ PROPERTY BOUNDARY (TYP.) _ _ — —v 112066 0
Y/// i� V A \
0 20 40 80 % --( / V A _ - SCALE
a
/F/ ( IN FEET ) ) V 1 \\ / , SHEET NO. n
1 inch = 40 ft. i ` ` - N \ ► i , - - — / \ �3
OFIr
LIMITS OF DISTURBANCE,
TOTAL AREA=1o.93 ac.�/ / B, -. I ,�a " robl�
4$ //' I -----I — I
�
/ / \
O�o SCLINS�
O6 / `b U _
Lic. No. 035791.-
/ 19 2 z
a
N W �h
W
w wA/CWIRE �` w ? 1 `_` ZIP
PROPERTY BOUNDARY TYP. i a _— ;5
ell
w/WIRE SF /-�' _ ��. Jar'` —`-- ��— w
II.. �
_ 1 I _
BACKING,, 6 / I I� --��� ----�1 - _ — o 0 3
E /♦ t F z U41P y
/� I I 1 1 11 / / �_ 1 .� �./-- 0 w
DC U
Un Co w
54 1 _--- CONTRACTOR SHALL INSTALL A R/W F i / // o a w s
- _ _ _ - - - J �54 DIVERSION ACROSS THE CONSTRUCTION RW D u • O m 3
_-- 'A
6------- ENTRANCE AND DIVERTCERUNOFFTO I 'A > Lu z a a
6 THE PROPOSED SEDIMENT BASIN. I V l w o
- —
5 TS -
\ -
/ F�1
IP _ o
PROPOSED PAVED W
PROPOSED 18" DIVERSIO / CONSTRUCTION ENTRANCE CE �!
- (12'x70' MIN,) w/ WASH RACK I
CONTRACTOR SHALL ENSURE 65 °
Y
DIDCONTRACTOR
SLOPE IS MAINTAINED. i CRS
/
PHASE II DRAINAGE AREA
658 BERM SHALL BE STABILIZED AS A -
�' a
_ TO SEDIMENT BASIN FIRST STEP IN DISTURBANCE. % M I ,
54 -'
-
9.60 ac. i PROPOSEDPHASE
I II
52 STAGING AREA
-
CD
So - DRAINAGE AREA TO PHASES I LOCATION I - - � \ o
°J
ti
DIVERSION DIKE - 3.75 ac. OF'PORTA-POTTIES t I r \ _ _ o °\ N
Sy PROPOSED 18" DIVERSION. CD ~ o
5
CONTRACTOR SHALL ENSURE �- y THE FUELING TANK SHALL BE COMPLETELY PHASES I LOCATION � 650I
S D OSITIVE SLOPE IS MAINTAINED, Y
BERM WITH A HEAVY MIL POLYETHYLENE
SURRNINGEOR BE PLACED IN ANIMPERVIOUS
E EARTHEN OF 15c DUMPSTER • g40 ` E
ERM SHALL BE STABILIZED AS A 1 _
I
I T STE IN DISC TURBANC�F. 1
% PHASES I LOCATION °
OPEN -TOP DUMPSTER. THE PROPOSED BERM OF FUELING AREA
FLOW DIRECTION ARROW (TYP.) - PROPOSED STOCKPILE OR DUMPSTER SHALL CONTAIN FUEL IN THE 52
So� EVENT OF A SPILL. CONTRACTOR SHALL iL9
\ 42 SURROUNDED BY SILT FENCE ENSURE VOLUME CAPACITY IS 10% LARGER EXISTING STORMWATER v ✓� T
THAN THE MAXIM M VOLUME OF STORED FU L. 5
MANAGEMENT FACILITY M u')
TS
CN
\ _
v s v w/ WIRE �� w + — -
/ — ` t
SF �BAc'rrxuG �. w sus TS C'') Z 3
PROPOSED 18 DIVERSION \ _ > 0
\ + CONTRACTOR SHALL ENSURE w
POSITIVE SLOPE IS MAINTAINED. DID W n
x BERM SHALL BE STABILIZED AS A � �' "�, - ' i � � ` � - \ (�I (n >
® \ -- ? DRAINAGE AREA TO \� FIRST STEP IN DISTURBANCE.
. " -y
o
\\ \ \ ` DIVERSION DIKE = 4.91 ac. — — �,; CA
I l o
\ s \ \ CN
�� \ CONT CTOR SHALL ENSU E DURING IF y (V uj
\ \ EXISTING VARIABLE WIDTH SWM ESC PHASES I & II, WHEN THE BULK OF -
\ N _ THE CLEARING & GRADING OPERATIONS EXISTING TREELINE (TYP.) / Q
FOREST AND OPEN SPACE EASEMENTJ •
\ 5 75 4 - - - _ - OCCUR, THAT j; W i Z 9 \ OCC AT THE -
vv D.B. o PG. 6dB- DC � ! �
s \ DIVERSION IS IN PLACE & FUNCTIONAL
AT THE END OF EACH DAY.
v
PROPOSED 18" DIVER ION. U)
CONTRACTs\ \ \ EEN�P \d I LLI
DRAINAGE I D (TYP.)- POSITIVE SOLOPE IS MAINTAINED.
\ L ENSURE PROPO"WAR IN QUICK SAND, KEEP OUT' SED SAFETY FENCE, INSTALL SIGNS,\\ 1 cN n
\ \\ GRO\G !\O \ `e p / y 1 a�Pt\cgENCN F-
OE P e _ BERM SHALL BE STABILIZED AS A � 6i
\ \ PREP ES \ FIRST STEP IN DISTURBANCE. 6 P PF��y eE Q Z "
PQFZ - s o
\ 4 TS PROPOSED 0"
3�\ _ RCP STANDPIPE SF ACKING \� 9 _
w/ WIRE
1 ' 41#3 638- 0 ��M ; y i Hi L I J
� CC
411#\ \� \� 8 PROPOSED FFLES �^, \ ~� G
- - , .
. r► ��
DC 636�/"X, uj —
v v
L
w/ WIRE _ � / " \.� .� z W
SF BACKING �� \ zu b D 1- 4 (1)
+,\ � �- � � k PROPOSED FLAT VDOT C SS A C A 5 � /� L
\ • O ;� % \ \ / 0P AGGREGATE OUTLET PROTECTION w/ (n ,�maxx z
�� V SIB GEOTEXTILE FILTER FABRIC ��� v W o
�v �s �', - UNDERLAYMENT &VDOTSTD. EW-1PC vv U/ z
LIMITS OF DISTURBANCE, , %� 6z , (L=14', w1=6', wz=16', D=1s' Mw.. \ % W O Z 'W
\ ` TOTAL AREA=io.93 ac. �i' — - Y i� w O
-- w/ WIRE ® '� sf �J \ — z
BACKING SF 3 ! m �!i .. O V) w
y, - - -- - �-' O z
�� k -` • 1
TREE Ci o
s
PROTECTION - _ TP PROTECTION _- s _ LLI
S -_- TREE
- -
TP �� _
PROPOSED ar," , � o
. - RCP BARREL _ _ - _ - \ �N .'
-s - --
� ------ ®w � _ t •� _ �s _-_-Ili- = a
S "
� c9 L.L
s EXISTING VARIABLE WIDTH SWIM,
w/ WIRE
/ \ FOREST AND OPEN SPACE EASEMENT SF
- -
�•-- - .BACKING /S/ o
s— D.B.o75PG 664
, ` - --------,� -- a O . / \ - ---- � ---- s- -- -- - -
- - - ---- s -S o
+ _�
s
S— s -
y
- - - - -
— O
"
x
PROPOSED TREELINE TYP.- - -
�\-- \
U \
w
�P. Nv�- E
roe No.
0� ' GRAPHIC SCALE �'
PROPERTY BOUNDARY (TYP.) e P #oF MN'61 _ -- —\` -- \ \ 112066 0
a/20 ap ao 160 % A 1 A / SCALE
( IN FEET) 1 A /
SHEET
/ 1 inch = 40 ft. } A N \\ �QgNG A N0.
4
r
LIMITS OF DISTURBANCE, / I / / / j. �� // / / 0
TOTAL AREA=10.93 ac. ( / �/ /F I / /
--- fo�o /
/ SC( R. LINS�
QJ L1C. No. 035791. -
. .,.- -/ �r .-� � `• - ' ]� — � � tea` — . � _ �_ -�.� � /� � � � / � i t /�� � z_
HEA:
IP w
PROPERTY BOUNDARY TYP.
w w
' 6
41P
_-- - - - -
/ SF�
w/ WIRE rr - ,�—I
BACKINGLu
v
O 3
z O
O m
z x
0O o
U
w
CO w
54
z J f o
O m r
�. i r"•�— - / - — — — - I __ - i - - / u In Z .3
I O
w
L O
- - — - _ --------Lu
I t-
00m U)
--, 52 = dS
'_ D PAVE = I IP
PRbPO ED 18 DIVERSION. Ip CONSTRUCTION ENTRANCE -CE --
IP s .. (12 x70 MIN, w/ WASH RACK e o
CONTRACTOR SHALL ENSURE U
POSITIVE SLOPE IS MAINTAINED.
- ;- -BERM SHALL BE STABILIZED AS A
IP 1 54 s — c
S I I I FIR T STEP IN ISTURBANCE.
5
q
I _
I
I CD CD
66Q,� Q ° r
IP
PROPbSE 18 DI kSI - ^� CDo
-I
M M IP MIP —..M I �
CONTRACTOR SHALL ENSURE - M� �50I
/ DID POSITIVE SLOPE IS MAINTAINED. nn w/ MR840 E
- -
4� BERM SHALL BE STABILIZED AS A a5 BA IN
_
I
T STEP IN ISZ�GE.
C P
FLOW DIRECTION ARROW`-
\\ r� 1 PHASE III OF CONTRTION ACTOR RAcroR - s EXISTING'STORMWATER L 5z �-
_ 1
ST GING AREA N _ — _I � � j �Nt FACILITY -
g
PHASES III
— e
4 _
�� � j I t, ,,� -OF 15cy DUMPSTER �c � S � � I \� \ / ��� � - O o
04
---=
WIREACKING 1� 1 IP 1 - I — — —_ — �-•I ° � O /%/. - \ � I - � � � t \ 46 -- - I PHASES III LOCATION -
\ PHASES III- — — PROPOSED 18 DIVERSION. a / 1, w °
, I OF PORTA POTTIES �\ �s - o
LOCATION OF I \\ CONTRACTOR SHALL ENSURE 0-
FUE ING AREA I _ y\ POSITIVE SLOPE IS MAINTAINED ' r /� \ L J n
\ \ NDED BY A 2' BERM SHALL BE STABILIZED AS A / - N C>
\ \\ ' \s Zy , - ♦ _DEEP, 2' WIDE EARTHEN BERM WITH A HEAVY MIL POLYETHYLENE FIRST STEP I DISTURBANC
\ r —
\---- _ - LINING, OR BE PLACED IN AN IMPERVIOUS OPEN -TOP DUMPSTER. O Q
-- -THE PROPOSED BERM OR DUMPSTER SHALL CONTAIN FUEL IN THE _ N
s\ ��lam' IP I EVENT OF A SPILL. CONTRACTOR SHALL ENSURE VOLUME CAPACITY' _ - ! IP N <• / " N W
\ EXISTING VARIABLE WIDTH SWM,� s Y
FOREST AND OPEN SPACE EASEMENT I IS 1 % LARGER THAN, THE M I VOI4UME F T Rpy FUELy /
� \ D.B. 5075, PG. 66¢ � - 6 - -- -- v- - 42 ,- � / � \ ;
I III DRAINAGE
♦\ �I b --- AREA TO SEDIMENT BASIN --- , ! - s / J z _j -
I _
IP � .�G� ROPOSED 8" IVERS ON. v / � � � �
_ J
\ s \ RAINAGE AREA TO 83 CONTRACTOR SHALL ENSURE IP PROPOSED SAFETY FENCE, INSTALL I S W
I I - D INAGE DIVI Eb (TYP.)� POSITIVE SLOPE IS a
DIVERSION DIKE - 1.58 ac. MAINTAINED. BERM SHALL WARNING QUICK SAND, KEEP OUT \ i /I cN
�% II gEN
_ D D a�Pj c cN 0 z o
\ \ ' ya, M M \ 6 P P�g.�y gEN � O z
STEP IN DIST RBA C � \
` �8E STABILIZED AS A FIRST �:
_ /11
3
Q \ a I
♦ v � � � _ � \ 3 IP RCP STANDPIP � SF AC � .� � Z Z
IP
-
zo
41W- \ S A _ r _ ���� ro �� 6 W\�� SE
RO OS FFL '
"
Z A w U 0 o
SFJ5 — _ / x PROPOSED FLATVDOTC SSAIC A 5 - /� D
AGGREGATE OUTLET PROTECTION w/ ul U
U)
�\ k �� ' _ SB ! GEOTEXTILE FILTER FABRIC 7 7
�s \ UNDERLAYMENT & VDOT STD. EW-1PC �� V) z
LIMITS OF DISTURBANCE, \ : _ 624 (L=14', W1=6% W2=16% D=1.5' Mw.. \ - / w Z 'W
TOTAL AREA=1o.93 aC. ♦ ♦ i - / N �` - - Y w O
w/ WIRE _ _ _ \ � LL _ z
♦ ♦i /
• / * s \ ��-��..._ BACKING SF + S ._� -- s� ~ U
• \ \ \ s _ _ TREE \` p T - 5-= J 0 o
s S _— — — ROT ' \ _ 5 P ECTION -
- k - - - S - U
TP � � � PROPOSED
BARREL — � I J w Hi W
PROTECTION ' «„
' - s -- -- - s -_-- - - — - 4 - o
EXISTING VARIABLE WIDTH SWM /� N
w/ WIRE
S
FOREST AND OPEN SPACE EASEMENT SF
�- BACKING
----- _-
s------ s D.B. 5075, PG. 664 --- --
s
_ S
----- — ---5 g - .�,
o O >
S.
N
. 1 \. m \
. / PROPOSED TREELINE (TYP.) \\ \ °
--
��
N, U a
R
d (A
Zl
JOB NO. a
�� GRAPHIC SCALE �� �- PROPERTY BOUNDARY (TYP.) goP of M — --v �� — — - / 112066
` m \ _ y
SCALE
a 0 so ao ao iao
( IN FEET SHEET NO. n
1 inch = 40 ft. J m PQgNG \ / '\ 15
PROPOSED SEDIMENT BASIN
SCALE: 1"=20'
PROPOSED SAFETY FENCE, INSTALL SIGNS
"WARNING QUICK SAND, KEEP OUT"�
640_-- -
PROPOSED BAFFLES
i
/ /630
Xs
X
- now
x�x
� x
Sediment Basin Design
drainage area (acres)
basin volumes: (using 2' contour intervals)
elevation (ft) contour area (sf)
624.00 3238.0
626.00 5016.0
628.00 6956.0
630.00 8970.0
632.00 11084.0
633.00 12179.0
storage required (cy) (67*DA)
atering orifice elevation (ft)
storage provided at this elevation (cy)
able volume before cleanout (cy) (34*DA)
Inout elevation (ft)
ance from cleanout to orifice (ft) (> V)
storage required (cy) (67*DA)
ciple spillway crest (ft)
storage provided at this elevation (cy)
neter of dewatering orifice (in)
neter of flexible tubing (in) (orifice+2")
C (use 0.45 for bare earth)
tc (min)
12yr 3.60
1 25yr 5.30
ble head (ft)
Iter riser (in)
By capacity, Qp (cfs)
:ter trash rack (in)
length (ft)
on barrel through embankment (ft)
Iter of barrel (in)
Q 2yr
Q 25yr
PPV
�\P�R\OPO NV IN$ 624 00';INV OUTA623.67 )
' \ qV
ffSC 0TT R. LLINSZ
Lic. No. 03579111,
636- ao 10/19/20 ��
1 _ �
634
1 \
/ PROPOSED 024" CMP STANDPIPE w/
/ TRASH RACK SHALL SERVE AS THE
l / RISER STRUCTURE. RISER STRUCTURE
SHALL HAVE A RIM ELEVATION=629.92'.
/ TO PREVENT FLOTATION THE RISER
BASE AND BARREL CONNECTION SHALL
BE FIRMLY EMBEDDED 6" INTO AN 3.8"
THICK CONCRETE FOUNDATION THAT IS
6'x6' AND BURIED BELOW GROUND
6j0
/ ROPOSED Vl� / TD. ES-i
PROPOSED FLAT VDOT CLASS AI COARSE
Mw, T WISPILLWAY CREST OF EMERGENC
2' WITHOUT SPILLWAY
9.60
DESIGN HIGH WATER
'RS-YR. STORM ELEV.)
volume (cy)
D.,•
0
MIN. 1.0'
------
303.3
R5� CREST
DRY • SrOWE
DEWATENNG
744.8�
1333.0
• wEr • "RAG
2074.4
RN
2505.0
SEDIMENT CI.FANOUT POINT
V WET • STORAGE REDUCED
TO 34 CY./ ACRE]
643.2
design high water (ft)
630.92
627.58
top of dam (t)
633.00
643.2
top width of dam (ft)
10.0
321.6
bottom of basin (ft)
624.00
626.08
approx. bottom dimensions:
18k190'
1.5
upstream face slope:
2:1
downstream face slope:
3:1
643.2
baffles:
YES
629.92
length of flow, L (it)
54
667.3
effective width, We (ft)
165
6.0
L I We (baffles not required if> 2)
0.3
8.0
collars:
YES
depth of water at spillway crest (fl)
5.92
0.45
slope of upstream face (Z1)
2:1
14
slope of barrel (Sb)
0.67 %
15.55
length of barrel in saturated zone (Ls)
36.51
22.90
number collars required
2
dimension of collars
3.Sk3.8'
1.00
emergency spillway:
NO
30
required capacity (Q25-Qp) (cis)
WA
22.90
bottom width (ft)
WA
42
slope of exist channel (ft/ft)
WA %
48.92
minimun length of exit channel (ft)
N/A
7.25
crest of spillway (ft)
N/A
24
AGGREGATE OUTLET PROTECTION w/
GEOTEXTILE FILTER FABRIC UNDERLAYMENT
(L-14'W 1=6% W2=16', D=1.5' MIN.).
z
O
a
Z N =
O 0 N
Z J
o a
�..� Lnn
j z
w
W
W
M
0')
ON
V
M
O
W CA
N
N
W
W
CO
O
J
U
1
W
I-
w
U ~
L w
O w
a U)
JOB NO.
112066
SCALE
1" = 20'
SHEET NO.
16