HomeMy WebLinkAboutWPO202100033 Plan - Revision WPO VSMP 2021-08-12 EROSION & SEDIMENT CONTROL NOTES VICINITY MAP
ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES � O ppp ppp � �� ppp ppp O SCALE: 1"=1000' Date: 3/21/21
WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION � �� JJ 0 � � � � � � � � � �� JJ � � 0 � � �
AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS 9VAC25-840-40 EROSION AND SEDIMENT CONTROL � �� „
REGULATIONS. O O � \O
Scale: 1 "=50'
ES-2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE-CONSTRUCTION CONFERENCE,
ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL ��
�NSPE�T�oN. PROJECT FILE # : WP02021 00033 ' oes�g�ed by: NHK
s�
ES-3: SEDIMENT BASINS, TRAPS, AND ANY OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A � � � �
FIRST STEP AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCES TAKE PLACE. PERIMETER DIKES AND ��pp`SL� ��.�.
SEDIMENT BARRIERS SHALL BE CONSTRUCTED AS A SECOND STEP IN ANY LAND DISTURBING ACTNITY. � F �c° '
` �. 20� �,o �. :.. , Drawn by: BWK
ES-4: STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS E N T R A N C E ` �. /
IMMEDIATELY AFTER WSTALLATION. ���
ES-5: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN INCLUDING THE NARRATIVE SHALL BE �� �� v Checked by: NHK
MAINTAINED ON THE SITE AT ALL TIMES. ` SC '���� 49�
p ��..� y�
ES-6: PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS ��S` {/ \\ ��
(INCLUDWG, BUT NOT LIMITED T0, OFF-SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A APPROXIMATE LOCATION OF �� y�O��_// �
TRANSITION FROM PUBLIC F` ,��j
SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORIN. r� �
ROAD TO PRIVATE DRIVE P� Q� ��� .
ES-7: THE CONTRACTOR IS RESPONSIBLE FOR THE WSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES DYERS MILL LN. \ `S'S Q� ��i�"� -� �i �`� �
NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. �--- -�- \ O e� ' 'r � o
�,,, RT.713 � \ � t� �� - �
ES-8: ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND F'`� j �
DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. � \, � �9� � � . � �
! � Ox �.. � � b0
ES-9: DURWG DEWATERWG OPERATIONS, WATER WILL BE PUMPED WTO AN APPROVED FILTERING DEVICE. \ _. �
! I �L
ES-10: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF EXISTING DRIVEWAY � � �`\ �X . ��J � � ` ^\, ��� . � o x �
PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION '� � �1 � . - �\\�����/\`�`�. `.�:,� . .�� ��. oo Q c
C O N T R O L D E V I C E S S H A L L B E M A D E I M M E D I A T E L Y. a E X I S T I N G S E R V I C E E N T R A N C E ` s ��� �- � �J ry LL �
� TO SITE \ `rp J Y ^� �n C
ES-11: PERMANENT OR TEMPORARY SOIL STABILIZATIONS SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS .�'` '� 'f'i a v 'c � v
AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN \ c'S' � � v� �m O1 3
SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE A FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED FOR / � j'-- �� / \ \ �9� = v j m u
LONGER THAN 14 DAYS). PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR I 7 • � �. •i � `n a m
MORE THAN ONE YEAR. � / \ x � � � � � (3j
1 � a SITE DESIGN: NOTE: � _ " � �m
ES-12: A PERMANENT VEGEfATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMANENTLY / \ ` FOR THE PURPOSES OF PLAN REVIEW AND APPROVAL, NATHAN � o v _
STABILIZED. PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT, \ BLACKWELL ENGINEERING H. KNOPP, P.E. IS THE CERTIFIED RESPONSIBLE LAND •� "' 'c c '@
IS UNIFORM, MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION. f \ � LEGEND ATTN' NATHAN BLACKWELL DISTURBER (CRLD). CONTRACTOR SHALL PROVIDE � _ � �o r E
REPLACEMENT CERTIFICATE AT TIME OF CONSTRUCTION TO THE W �n x a w
ES-13: DURING CONSTRUCTION OF THE PROJECT SOIL STOCK PILES SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT 566 EAST MARKET STREET COUNTY E&SC ADMINISTRATOR.
TRAPPING MEASURES. �. \ EXISTING BUILDING HARRISONBURG, VA 22801
� °� PROPOSED BUILDING 540-432-9555
ES-14: CUT AND FILL SLOPES SHALL BE CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. SLOPES THAT ARE � PROPOSED ROAD/EOP
FOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OR PERMANENT STABILIZATION SHALL BE PROVIDED WITH I � NOTE:
ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED. � � � - - � EXISTING ROAD DEVELOPER:
CONTRACTOR TO PROVIDE A CERTIFIED
ES-15: ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT � � \ APPROXIMATE PROPERTY LINE BROC TROXELL RESPONSIBLE LAND DISTURBER UPON PERMIT
SEDIMENT WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO � 0 GRAVEL AREA 7369 DYERS MILL LANE REQUEST FROM COUNTY E&SC ADMINISTRATOR.
REMOVE SEDIMENT. / � 1 SCOTTSVILLE, VA 24590
\ � 0 CONCRETE AREA 570-4120364
ES-16: BEFORE NEWLY CONSTRUCTED STORM WATER CONVEYANCE CHANNELS OR PIPES ARE MADE OPERATIONS, / � Q Q REVISION SYMBOLS CRLD FOR THIS PROJECT IS:
ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN /
BOTH THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL. � � �,���� 1P30 EXISTING CONTOURS PROPERTY INFO:
ES-17: WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE TAKEN TO MINIMIZE � � f � ��2gp� - PROPOSED CONTOURS TM #129-5 NAME: Q,
ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE � � � PROPOSED/EX DITCH OR SWALE 7369 DYERS MILL LANE �1��� a' �(3
DURING CONSTRUCTION NONERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND � GRAPHIC SCALE SCOTTSVILLE, 24590 CERT. p�� � ���'i
COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS + 28.5 PV PROPOSED SPOT ELEVATION MAN. DISTRICT- SAMUAL MILLER � �
300' 0 300' 600' � DRAINAGE FLOW � ' N
AREA = 399.71 ACRES o � �w
ES-18: WHEN A LNE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES MORE THAN TWICE IN A SIX-MONTH �, � �, S ,.:�
PERIOD, A TEMPORARY VEHICULAR STREAM CROSSING CONSTRUCTED OF NONERODIBLE MATERIAL SHALL BE PROVIDED. � � DISTURBED AREA ZONED: Rural Areas � � � N ¢
SCALE: 1°=300' PROPOSED EASEMENT PROPOSED USE: AGRICULTURAL ROUGH, UNADJUSTED CUT/FILL Q, � z
ES-19: THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE - POULTRY HOUSES d z � O
IS COMPLETE. FEMA FLOOD ZONE: X ESTIMATES 3 � � ��
DISTURBED AREA = 7.90 AC CUT- 22,000 YD3 �'� � 04k'
ES-20: TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHW SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FILL- 21,600 YD3 LJi� Q Q�y.
FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 14 DAYS. NET- 400 YD3 CUT OJ z
ES-21: UNDERGROUND UTILIiY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION
TO OTHER APPLICABLE CRITERIA: R� ��o
A. NO MORE THAN 500 LWEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME. � ; � �� --- - -- �
B. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES. ��-��' � � � �. s, � � � �i / i � � � � � i � �� � � '�=�� i ' ' - / _ � � � �
C. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING � � � �s � � � i i � ,i � � � _ � � � � �\ � � NOTE: Revision Dates
� � - - � ��� THE ENTIRE STORMWATER PLAN WILL BE RE-EVALUATED
DEVICE OR BOTH, AND DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING STREAMS OF � \ -�� \ � � � i � � �`a� � � � i \ �
� � i - i � � � AND NEW CONTROL AND TREATMENT MEASURES 7 6 21 PER CO
OFF-SITE PROPERiY. � � � B8 � � � � � i � � � _ i � � - - �
D. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND � � \ � � � � � �' � � � ' � � i � � i � � � � � � � � IMPLEMENTED AS NEEDED FOR ANY CHANGE TO OPEN / /
PROMOTE STABILIZATION. � � �� `90 � � � ' � � � � � � i � � � � - �� �� �� SPACE/ MANAGED TURF/ IMPERVIOUS COVER. 8 1 2 21 PER CO.
E. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS. ` � � \ � sr9 \ � � � '
F. APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH. , \ �� \ � � � �\ �� - - � _ �� ` � -- \ � OWNER RECOGNITION:
� � �y � PROPSOSED SWM FACILITY EASEMENT � � SEDIMENT BASIN TO BE CONVERTED TO DRY POND AT \ �
ES-22: WHERE CONSTRUCTION VEHICLE ACCESS ROUTES WTERSECT PAVED OR PUBLIC ROADS, PROVISIONS SHALL BE � � � A �..\ �� � i THE END OF CONSTRUCTION. SEE DETAIL ON SHEET 3. \ ��
MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT �- � � � �9 \ � POST CONSTRUCTION LEVEL SPREADER � -� �' �� NAM E:
IS TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED THOROUGHLY AT THE END OF � � � 6' \ � ' � � � �" � � ----------------------
EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROAD BY SHOVELING OR SWEEPING AND TRANSPORTED TO A � � R � � \ \� \ \ � � � ¢SEE DETAIL SHEET 4 � � �
\ �� ., \ \ � \ � � i B6 - � ` _ � i \ .
p \ \ / / ��
� , � , � DATE:
SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS � \ 8 \ \\ \ \
� 9 �
MANNER. 1 �- � _ ��,,
S I� � \ \ �.� r .. . �� �.. _ /� i � � � ,.
ES-23: ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL � � � �� �-� � � � � � �488� � � � r �� � �� - � / �'- �
SITE STABIL2ATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY So� � 1\ �, �490 � � '� -! � � _ ��� .��
THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE � �, � �. - � �0� � � - - 49�-
DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND soR �� �� � � � ° 49Q � a � 494 g.0' BERM / � �� � -�
SEDIMENTATION. �� \ � � � � ` � - - - � 498 - -- _ � . �� ���
� � - �
ES-24: ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT 3'06. � � . �;.. \ R+ \, '� . ... � _ - -� _. qgg \ �
RAINFALL. THEY WILL BE INSPECTED FOR UNDERMINING. DETERIORATION, EROSION, AND EXCESS DEPOSITED MATERIAL. ALL ,� \ � ��� '�, '� � �- �_' � � qg2 � �" -�� � _ - _
DEFICIENCIES WILL BE CORRECTED IMMEDIATELY. EXCESS MATERIAL WILL BE SPREAD ON THE SITE IN A MANNER WHICH � �' � 'R� - �� ^` � � , - �� � -�� 494 �- � � , � -- `
WILL NOT LEAD TO FURTHER EROSION POTENTIAL �sp� � -� � � `98 y +P� 95.7 - - �_; ` _ - � � � "��� � �- , � � ���-���. �
� - NV+
�� A � �S� ,'� 4 49a 492 � � � � � `� A
� 98.0 R f___.-.------ ._ - . 9 -� INV r�t.- � - __ - ' 496 . - � . 94.5. t�:_� ' .. � ��\�V���9 �8 � . �
��� � .�� . � .. 500 . .. � �c ��RA� '�'w t, � W
; � 01.9 P��� X'96 �,oV_��'9 �� 99'8 S�p .. Q � � Z �
N
SEEDING & MULCHING TABLE s�2 ��7 , " �� � ��.> P ,5" HDPE INLET OR EQUN. 4g8 PROPOSED � � o0o P� ,o I � Q o J �
_
� V � TOP=500.3 103 LF OF 15° 63 X 7O4 178' LF OF 15" 15' HDPE INLET OR EQUIV. �+PV ��'� �T I � J J N
ALL AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH TEMPORARY OR PERMANENT � 15'� INVERT=495.6 HDPE PIPE � 1.4% 5�0 POULTRY HOUSE HDPE PIPE � 1.1% ��� �Q � � w J
SEEDWG WITHIN 7 DAYS FOLLOWING FINISH GRADING. SEEDWG SHALL BE DONE ACCORDWG TO � TOP=500.3 ��. � _ Q
p� � 15" INVERT=495.5 ��� �' X
STANDARD & SPECIFICATION 3.31 TEMPORARY OR 3.32 PERMANENT SEEDING, OF THE VIRGINIA P� . FFE=502f 15" INVERT=496.0 �P � �� 1 � � � �
EROSION AND SEDIMENT CONTROL HANDBOOK AND DCR TECHNICAL BULLETM #4. APPLICATION �I������� � �Z , 'Soo 15° INVERT=495.9 � 07 � � J Q. �
RATES FOR MULCH, FERTILIZER, LIMESTONE AND SEEDWG MIXTURE SHALL BE AS INDICATED BELOW. I 5 HEIGHT ^' � �J 0� 5 � � H N W
�7.9 pV-� �- /�, +PV ��9 +PV � P� 2. Z O � J
TEMPORARY PERMANENT � ss.o � + ,.� P„+ 50, "� 5�q °�.6 Pv+ Pv+ - - 50, � Pv+ - � � w �
SPECIES LBS/ACRE SPECIES LBS/ACRE � � 23.0' + 0�'6 \ � p1? / , Q J � � N
ANNUAL RYEGR4SS & CEREAL RYE 50-100 KENTUCKY 31 FESCUE 128 /� IPv p1 1 +P� ���4 �2 P�+ 149� 37 LF OF 15 �2.2 p�+ �� � 37 LF �OF 15" � ��, .2 p�+ � � � ' � m �-
HDPE PIPE � 1.4% � HDPE PIPE � 1.17 � '�� � �'e� w O) �
ANNUAL RYE GRASS 60-100 RED TOP GRASS 2 � , 0 .� P� 501 5 ��.6 p� � 501 � ��� v 0�� , , � v O I� O
GERMAN MILLET 50 SEASONAL NURSE CROP* 20 I ' � 0j.9 P + 23.0' � + p1.6 P�+ G Ol� P�+ 01 9 +P O20 � \_ .. � � (n
V V
TOTAL 160-250 TOTAL 150 � � � PROPOSED �P P� � \ ~
kUSE SEASONAL NURSE CROP AS INDICATED BELOW I�� � 01 7 PV �� TOP=500.3 HDPE PIPE � 1.2% 5og P06LTRY HOUSE a 15" HDPE INLET OR EQUIV. +Pv �,? �, �
❑ SEPT. 1st - FEB. 15th ,� ANNUAL RYE & CEREAL RYE ❑ MAR. - MAY 15th ANNUAL RYE � a � N 75.0' - - 90 LF OF 15" TOP-500.3- � V p�.4 � ` � ..
15' HDPE INLET OR EQUIV. 90.5 LF OF 15" i,
+P
I ' HDPE PIPE � 1.1% 15" INVERT-496.4 �I
❑ FEB. 16th - APR. 30th ANNUAL RYEGRASS ❑ MAY 16th - AUG. 15th FOXTAIL MILLEf I � �1.7 p�i�_ 15' INVERT-496.1 FFE-502f 15° INVERT-496.3 �P� 01� �
� �p: � Pv p1.1 � 15' INVERT=496.0 , � pV �
❑ MAY 1st - AUG. 31st GERMAN MILLET ❑ AUG. 16th - OCT. ANNUAL RYE , I , � O 9 HEIGHT ^' � �J O� 9 TEMPORARY DIVERSION
❑ NOV. - FEB. WINTER RYE � -�'� +P- � DIKE TO BE REMOVED AT
� � �8 �� OO � �-� THE END OF PROJECT
FERTILIZER: 10-10-10 � 450 LBS/ACRE (10 LBS/1,000 SF) FERTILIZER: 10-20-10 � 500 LBS/ACRE (12 LBS/1,000 SF) � � � ' ���0 P� . .____ 97'2 INV+ 500 5 ��'� NP+ ..�____ � 97'2 INV+ 500 ._-__ _._. ��'� Hp+ ' �
_ __--
PULVER2ED AGRICULTURAL LIMESTONE: 2 TONS/ACRE (90 LBS/1,000 SF) PULVERIZED AGRICULTURAL LIMESTONE: 2 TONS/ACRE (90 LBS/1,000 SF) _ � ., � � �� � � __ . � . . - - - � - 5 2 �_ \ � � �� TEMPORARY DITCH TO BE
- _ _ _. _ .- - . 504
ORGANIC MULCH MATERIALS AND APPLICATION RATES � � �
_
� __ . _ . - - -.. __ __V� �.'� �-� REMOVED AT THE END
VESCH TABLE 3.35-A �"' � � - -� -�- �� - � ----- - - - - � � � � � ` �. OF PROJECT
RATES � ` � / / .. � \j> _ � � "�6� � � � � � r -_I _ � �
MULCHES PER ACRE PER 1000 SF NOTES: � � - �, � � � , � �� , ..
1� - 2 TONS 70 - 90 Ibs. FREE FROM WEEDS AND COARSE MATTER. MUST BE ANCHORED. '_ � � � � �� � � � � _ � � � � � / \� � , / LITTER •�
STRAW OR HAY (MIN. 2 TONS FOR SPREAD WITH MULCH BLOWER OR BY HAND " � �- � � , � STORAGE Drawing NO.
WINTER covER) y1k _ _ - 5O4 ._ �\ �� , BUILDING +p� 0�5
DO NOT USE AS MULCH FOR WINTER COVER OR DURING HOT, DRY EXTRA NOTES: so2 � � � � � , .,_,.g � 5O� X 5O�
FIBER MULCH MINIMUM 35 Ibs. pERIODS.* APPLY AS SLURRY � - - - � � , � � - '�"�'. FFE=504.5 �
1500 Ibs. 1. THE OWNER AND CONTRACTOR MAY NEED TO MAKE MODIFICATIONS TO THE PLANS TO MATCH FIELD CONDITIONS. THE � - -- - - - � � � , EXISTING `- 1
CONTRACTOR SHALL VERIFY THAT EXISTING TOPO LINES ON PLANS GENERALLY DISPLAY FIELD CONDITIONS. IF A 500 � � � � � BUILDING � 504 I
CORN STALKS 4 - 6 tons 185 - 275 Ibs. CUT OR SHREDDED IN 4-6" LENGTHS. AIR DRIED. DO NOT USE SIGNIFICANT DISCREPANCY IS FOUND. CONTRACTOR SHALL NOTIFY ENGINEER. . � � _ _ �� - - � \ � � � �� �� , �'" ��'1 � �
W FINE TURF AREAS. APPLY WITH MULCH BLOWER OR BY HAND. _ ¢g8 � � \ � �� APPROX SO'X35� � GRAPHIC SCALE
2. TOPO INFORMATION WAS OBTAINED FROM BLACKWELL ENGINEERING ON MARCH 3, 2021. � � � � _ _ �� �� � � \ /
FREE OF COARSE MATTER, AIR-DRIED. TREAT WITH 12 Ibs. � "- - - - - � � � � �� �� 50' 0 50' 100' Of 4 Sheets
WOOD CHIPS 4 - 6 tons 185 - 275 Ibs. NITROGEN PER TON. DO NOT USE IN FINE TURF AREAS. APPLY 3. PROPERTY LINE OBTAINED FROM COUNTY GIS. TO BE USED AS A GENERAL REFERENCE ONLY. � _ - 496 � � - � � �
\ \ �
WITH MULCH BLOWER, CHIP HANDLER, OR BY HAND. � � �� \ � � � _ � -- -
4. EROSION SEDIMENT CONTROL MEASURES TO BE INSTALLED FIRST, GRADING OF BUILDING PAD TO PROCEED ONCE - - - - -
BARK CHIPS OR FREE OF COARSE MATTER. AIR-DRIED. DO NOT USE IN FINE TURF MEASURES ARE IN PLACE AND STABILIZED WITH SEED/MULCH. ROAD TO BE GRAVELED, AND OPEN AREAS TO BE SEEDED / � � 494 � � \ � \\ \� �� /� / SCALE: 1"=50'
SHREDDED BARK 50 - 70 c.y. 1 - 2 c.Y. AREAS. APPLY WITH MULCH BLOWER, CHIP HANDLER, OR BY HAND ONCE GRADING ALLOWS. CONSTRUCTION OF BUILDINGS TO COMMENCE. ESC MEASURES TO BE REMOVED AND SEEDED � \ \� � - �
ONCE COUNN ADMINISTRATOR ALLOWS. // � - � 4'92 - - � � \ \ _ - -
� � � �� � � �� � , �� _ _ , - - Job No. 2888
* WHEN FIBER MULCH IS THE ONLY AVAILABLE MULCH DURING PERIODS WHEN STRAW SHOULD 5. SLOPES GREATER THAN 3:1 ARE TO BE TREATED AS CRITICAL AREAS. � qgp
BE USED, APPLY AT A MINIMUM RATE OF 2000 Ibs./ac. OR 45 Ibs./1000 sq. ft.
/��/ � � \� ��� i il �� '/
� EXISTING DRAINAGE AREAS ESC DRAINAGE AREAS � � PROPOSED DRAINAGE AREAS Date: 3/21/21
�_ � i� � ` 0.47 ACRES TO ENERGY
2.23 ACRES TO , , �� �., ANALYS S POINTEB 2
ENERGY BALANCE �V � �,DDITIONAL ACRES TO POND SCOIe: AS NOTED
. � 09 S6RACRESNIMPERVIOUS # ( )
/�� POINT OF ANALYSIS B . , � ;
. . . � , ' t � ������ � 490 .�17 ACRES-MANAGED TURF Designed by: NHK
� .33 ACRES IMPERVIOUS
ENERGY BALANCE POINT OF 490 ENERGY BALANCE POINT OF
ANALYSIS 1 EB 1 � ANALYSIS #1 (EB 1) o / --a„ DI"C1Wr1 by: BWK
� � # � ) o � � o � — — � � _ � p �� � � .50 ACRES-M�AGED TURP
_ o � �O O e � � Q \ � , > .33oACRES IMPERVIOUS Checked by: NHK
�p�- h � n°j i s3.s' � 5�
-- � �� �` \ � 5�� y,�'� 7.09 ACRES TO SEDIMENT BASW . 50� �� ���' � � �� � �� �..� � �g0
� p �q� 0 hg0 _ � / �
t \ � 5� � 0
� � � � � ;�, ' � � / AB
//
V � k8� � // k8� ' �
p .85 ACRES CULVERT //1 ,�0 0
� � `O .52 ACRES-MANAGED TURF � � �o
�� �o . . ��� % .33 ACRES IMPERVIOUS 0 � �
� � � � � �
0
45 � � `a 450 `o o �
\ �' b' ��J / .50 ACRES TO DI //3 h � °�°
� � � - .17 ACRES-MANAGED TURF `+ � -"�-'�
� �n h � p .33 ACRES IMPERVIOUS p x m
� • • � v v k6 � � oo ¢ c
, 4 /' � � G6� / � " / / � � J v ^� �^ w
�--� �-�'��, ( � ; � j �. .50 ACRES TO DI #4 a v '� v`ni v
. \ ' . / � .17 ACRES-MANAGED TURF � v� '`n O1 3
�- �� 12J6 ACRES TO ENERGY BALANCE POINT #1 k�� � � " �� � �- .33 ACRES IMPERVIOUS � = v j m u
� - _ (4.81 SITE ACRES) � �' �' � ��� ' � i � � � `-°
, (7.95 OFFSITE ACRES) �� � , �,i d � o m
�� k p9 � „ ` 62 ACRES TO CULVERT #2 G1 � � � �
p�0 p�0 p � .36 ACRES-MANAGED TURF � _ " o -
/ ,� m
� � 4�� .26 ACRES IMPERVIOUS �� w .` v -
c �@
��� ��� � p � � W v1Di i a w
h� /�
h1� � h1� � h�0 h rn 0� 6p 450
h�` o 0 0 p 45� h'� o 0 0 p 45� I � � k�0 �`
h �u � k�0 b6 h a b.� k�0 kb h�0
1.63 ACRES TO DITCH //1
h�� GRAPHIC SCALE `'�� GRAPHIC SCALE o:3� ACRES IMPERV OUSURF GRAPHIC SCALE
200' 0 200' 400' 200' 0 200' 400' 0.75 ACRES-CROP 200' 0 200' 400'
WPO BUFFER (FROM GIS) `_
WPO BUFFER (FROM GIS) `_ SCALE: 1"=200' WPO BUFFER (FROM GIS) �_ SCALE: 1"=200' SCALE: 1"=200'
CRITICAL SLOPES (FROM GIS)
CRITICAL SLOPES (FROM GIS) �� CRITICAL SLOPES (FROM GIS) ��`� a �
- - _ �� � J��� � ����c�
o � N
o � �w
WATER QUALITY MASTER PLAN LIMITS OF ANALYSIS � � � N ¢
_,
_ d � � o
a�K- . � . z \ �
� � HSG B� HYDROLOGIC ,� � �� � ��ory��� z � �0��'�
SOIL GROUP
0 B MANAGED TURF �� � �
� B SWM FOREST & OPEN � . ,� ` _ �, % �, �
SPACE EASEMENT . - !, r � � � .
0 IMPERVIOUS � 39�
/ . Revision Dates
PROJECT AREA
EASEMENT = 17.50 ACRES � � 7�6�21 PER CO
/ MANAGED TURF = 4.62 ACRES (58.48 7 OF DIST. AREA) �j 8 12 21 PER CO.
/ � / IMPERVIOUS = 3.28 ACRES (41.52 9 OF DIST. AREA) ''��
/ �` � NOTE THE SWM FOREST AND OPEN SPACE EASEMENT IS SUBIKT TO THE GUIDANCE SET / � �
/ � � � FORTH BV DEQ IN THE VIRGINIA STORMWATER MANAGEMENT PROGRAM.THE AREAS � � - , . —
WILL REMAIN UNDISTURBED IN A NATURAL,VEGETATED STATE,EXCEPT FOR ACTIVITIES
AS APPROVED BY THE LOCAL PROGRP.M AUTHORITV,SUCH AS FOREST MANAGEMENT, �
CONTROL OF INVASIVE SPECIES,REPLANTING AND REVEGETATING,PASSIVE RKREATION
� � ; � ''-... . (E.G.,TRAILS),AND LIMITED BUSH HOGGING TO MAINTAIN DESIRED VEGETATNE POINT A
HSG B / "� � �'� COMMUNITY(BUTNOMORETHANFOURTIMESAYEAR). EX DA:14.97 ACRES '
/ � � a � - � �'�� PRO DA:13.47 ACRES
/ ,�� � �
�
� � � h �`
I � `� ( >1000 ACRES
�f .` rpW1�'�G�
Hs� o � � � " r
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/ r� 4 . .
�^ //J� �
HSG B ENERGY BALANCE POINT OF "' � � � Z w W O
� �� � �� ANALYSIS #1 (EB 1) ENERGY BALANCE � (� Z �
� ��/% � �- \ POINT OF ANALYSIS #2 � O J J N
/J � 1 J
� � � � w J Q
�-�, � _.�� ��°��� CONTROL POINT FOR SURVEY � � X � �
N89 46'i 6°E J „
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�� s63• � � ��� � � O M U
��� 3 ?6' 3, TRIBUTARIES TO TOTIER CREEK � � � � � N
/ 4
� 73�� � �� (� �
� , ,�
� �' DISTURBED AREA
� .. .. /.. :;'��� 7.90 ACRES
�
CONTROL POINT ,F`�
� FOR SURVEY
w
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/, / o ^ Drawing No.
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0
901.63' N
N88'52'07'�W
GRAPHIC SCALE -_ � , h1� 500• GRAPHIC S5oo LE i000' of 4 Sheets
200� 0 200' 400� � - _ �
BOUNDARY LINE OBTAINED FROM COUNTY GIS.
TO BE USED AS A GENERAL REFERENCE ONLY SCALE: 1"=200� 1 1 ` � '
` , , � , / SCALE: 1°=500'
�, - Job No. 2888
MINIMUM STANDARDS '°� 10' MIN
� �� ���� � � Date: 3�21�21
1. Permanent or temporory soil stabilization shall be applied to denuded areas within seven days after final . ,<�C�
rade is reached on an ortion of the site. Tem ora soil stabilization shall be a lied within seven da s to �� SANDBAGS
9 Y P P ry PP Y O � � O OR STAPLES
denuded areas that may not be at final grade but will remain dormant for longer than 14 days. Permanent A J ` A
stabilization shall be a lied to areas that are to be left dormant for more than one ear. � �� SCOIe: AS NOTED
�� � �� O O 10 MIL PLASTIC
SANDBAGS LINING i�
2. During construction of the project, soil stock piles and borrow areas shall be stabilized or protected with 3do do � '. OR STAPLES ^
sediment trapping measures. The applicant is responsible for the temporary protection and permanent � ��� ��� 6' MAX 1:1 SIDE ti/� Designed by: NHK
stabilization of all soil stockpiles on site as well as borrow areas and soil intentionally transported from the PIPE OUTLET TO FLAT 10' MIN O SLOPE (TYP) � / � 3"
project site. AREA WITH NO - EXCAVATE 4" X 4" TRENCH
DEFINED CHANNEL UPSLOPE OF STAKELINE. � 3' MIN.
3. A permanent vegetative cover shall be established on denuded areas not otherwise permanently stabilized. �, �',. - - _ - ATTACH FENCE MATERIAL O O ' . GROOVING IS CUTTING FURROWS Drawn by: BWK
Permanent vegetation shall not be considered established until a ground cover is achieved that is uniform, PLAN VIEW � -°-�� 'y � - - AND EXTEND INTO AND � ALONG THE CONTOUR OF A
mature enough to survive and will inhibit erosion. � •< �xt , = ALONG BOTTOM OF TRENCH. SLOPE. IRREGULARITIES IN THE
-�,G�, - - BACKFILL AND COMPACT O O O O SOIL SURFACE CATCH RAINWATER Checked b NHK
4. Sediment basins and traps, perimeter dikes, sediment barriers and other measures intended to trap - '. �__- . EXCAVATED SOIL SECTION A-A AND PROVIDE SOME COVERAGE y�
sediment shall be constructed as a first step in any land-disturbing activity and shall be made functional �a� d �.rt , - A OF LINE, FERTILIZER, AND SEED.
before upslope land disturbance takes place. '�^ °- �,��
5. Stabilization measures shall be applied to earthen structures such as dams, dikes and diversions �% ~ � ' NOTES: PLAN
immediately after installation. s ; ::_ ��---- FLOW 1. ACTUAL LOCATION DETERMINED IN FIELD GROOVING SLOPES
� "" s , � 7 2. THE CONCRETE WASHOUT STRUCTURES SHALL BE MAINTAINED WHEN THE
6. Sediment traps and sediment basins shall be designed and constructed based upon the total drainage area SECTION A-A 'r ; �- �n �,r ". ��1_. _ LIQUID AND/OR SOLID REACHES 757 OF THE STRUCTURES CAPACITY. NTS
to be served by the trap or basin. �I � ��� � 3. CONCRETE WASHOUT STRUCTURE NEEDS TO BE CLEARLY MARKED WITH SIGN �
a. The minimum storage capacity of a sediment trap shall be 134 cubic yards per acre of drainage area and / WASHOUT STRUCTURE ,.o• ,.5� � �
the trap shall only control drainage areas less than three acres. FILTER CLOTH KEY IN 6"-9" � �
b. Surface runoff from disturbed areas that is comprised of flow from drainage areas greater than or equal RECOMMENDED FOR TT r�. NTS .. � m �
to three acres sholl be controlled by o sediment basin. The minimum storage copocity of a sediment basin ENTIRE PERIMETER SlLl F�NC� � �Ya� J� � �
shall be 134 cubic yards per acre of drainage area. The outfall system shall, at a minimum, maintain the a.� � o u
structural inte rit of the basin durin a 25- ear storm of 24-hour duration. Runoff coefficients used in � n0
9 Y 9 Y PIPE OUTLET CONDITIONS (SHEET FLOW PROTECTION� ��� �`
runoff calculations shall correspond to a bare earth condition or those conditions expected to exist while the
sediment basin is utilized. NTS NTS h q�l`�. 2 5' � x �
ap ¢ c
FLOW� �_.:., V ry LL o0
7. Cut and fill slopes shall be designed and constructed in a manner that will minimize erosion. Slopes that _ � � Y N ,n c
are found to be erodin g excessivel y within one year of permanent stabilization shall be provided with additionalv . "'
EXCAVATED SOIL a � c '�^ m
slope stabilizing measures until the problem is corrected. COMPACTED SOIL ��. � � � ��m 3
24" WIDE x 12" HIGH 24° WIDE x 12" DEEP ' ,�,�.�. �,� _- � `�\" > _ � N u
permanenttrchaanelnflume�olrnslopeodra�Wstructu�e, fill slopes unless contained within an adequate temporary or PROPOSED DRIVE SF� 3 R��NjP�� F��W � � � � '� � > a m
EXCAVATE FOR on�-
SECTION ���E 5�� /��%��%���% � � TRAPPING FILTER LASS I � � � � � w�
9. Whenever water seeps from a slope face, adequate drainage or other protection shall be P�o��ded. L E G E N D ��� �'�` ��'�� - - - - � _ � � 'm
FABRIC RIPRAP
NTS VDOT #3. #357, #5, #56 OR #57 COARSE '- f0 � v -
10. All storm sewer inlets that are made operable during construction shall be protected so that EXISTING BUILDING �� � � T>tr�.-�-�' --z - ; AGGREGATE TO REPLACE SILT FENCE IN = w �� c �@
sediment-laden water cannot enter the conve ance s stem without first bein filtered or otherwise treated to � � � � � � � r �
remove sediment.
Y Y 9 PROPOSED BUILDING � "HORSESHOE" WHEN HIGH VELOCIN OF W �n x a w
PROPOSED ROAD/EOP t �
TYPICAL DITCH SECTION FLOW IS EXPECTED
11. Before newly constructed stormwater conveyance channels or pipes are made operational, adequate outlet EXISTING ROAD . T._���:. '` - ��` -,TT, ,TT, � ., � NTS DIVERSION CULVERT INLET PROTECTION STONE
protection and any required temporary or permanent channel lining shall be installed in both the conveyance � " � -. � -.-. �
channel and receiving channel. APPROXIMATE PROPERiY LWE � � � NTS COMBINATION
12. When work in a live watercourse is performed, precautions shall be taken to minimize encroachment, 0 GRAVEL AREA BASE AGGREGATE, COMPACT SUB-GRADE TO NTS
control sediment transport and stabilize the work area to the greatest extent possible during construction. 0 CONCREfE AREA 6" OF #57 STONE 95% PROCTOR DENSITY
Nonerodible material shall be used for the construction of causeways and cofferdams. Earthen fill may be Q Q REVISION SYMBOLS NOTE:
used for these structures if armored by nonerodible cover materials. DRY POND SEDIMENT BASIN EARTHEN DAM NOTES•
EXISTING CONTOURS SEDIMENT BASIN TO REMAIN IN PLACE UNTIL SITE IS COMPLETED AND STABILIZED. �
1230 TOP OF DAM = 498.0 1 TO COMPLY WITH VSMH.
13. When a live watercourse must be crossed by construction vehicles more than twice in any six-month AFTER APPROVAL FROM COUNTY E&SC ADMINISTRATOR, SEDIMENT BASIN TO BE )
PROPOSED CONTOURS DESIGN HIGH WATER = 496.1 2 CUT OFF TRENCH FOR ENTIRE LENGTH OF DAM
period, a temporary vehicular stream crossing constructed of nonerodible material shall be provided. 1290 � CONVERTED INTO DRY POND. DEWATERING ELBOW TO BE REMOVED BUT 6" ORIFICE EMERGENCY SPILLWAY CREST = 495.7 �
PROPOSED/EX DITCH OR SWALE TO REMAIN. PRINCIPAL SPILLWAY CREST = 494.4 AT CENTERLINE TO BE EXCAVATED 4' WIDE AND 2'
14. All applicable federal, state and local requirements pertaining to working in or crossing live watercourses DEEP INTO IMPERVIOUS MATERIAL. SIDE SLOPES
shall be met. + 28.5 PV PROPOSED SPOT ELEVATION OWNER WILL BE RESPONSIBLE FOR LONG TERM MAINTENANCE REQUIREMENTS OF DEWATERING ORIFICE INVERT = 493.4 TO BE 1:1, AND COMPACTED.
THE BASIN. TRASH AND SEDIMENT BUILDUP WILL NEED TO BE REMOVED. VEGETATION CLEANOUT ELEVATION (SB) = 492.7 3 DAM COMPACTION TO BE 957 OF MAXIMUM �� �-
� DRAINAGE FLOW � Z� �l
15. The bed and banks of a watercourse shall be stabilized immediately after work in the watercourse is WILL NEED TO BE TRIMMED PERIODICALLY. BOTTOM (DRY POND/SB) = 490.0 DRY DENSIN. 4.� � '�.}?
completed. cRs CONSTRUCTION ROAD STABIL2ATION (3.03) (1) ANTI SEEP COLLARS 4.5'x4.5' p� � � �'i�
40.5"x21.125"
SILT FENSE (3.05) - ANTI-VORTEX TRASH RACK � ' N �
16. Underground utility lines shall be installed in accordance with the following standards in addition to other SF �� MAINTAIN AT LEAST 18" OF o � '�
applicable criteria: iP STORM DRAIN INLET PROTECTION (3.07) EDGE OF (SEE DETAIL SHEET 4) COVER OVER CULVERT p.'�, � N ¢
a. No more than 500 linear feet of trench may be opened at one time. � PAVEMENT 3:1 SIDE SLOPES OR ...� � � z
b. Excavated material shall be placed on the uphill side of trenches. �iP CULVERT INLET PROTECTION (3.08) � DEWATERING ORIFICE = 6" NATURAL SLOPE WHERE d � o p
c. Effluent from dewatering operotions shall be filtered or passed through an opproved sediment trapping � CULVERT FLEXIBLE TUBING = 8" APPLICABLE `� z � �%
DD TEMPORARY DIVERSION DIKE (3.09) 3 . � � �
device, or both, and discharged in a manner that does not adversely affect flowing streams or off-site SEAL WITH RUBBER GASKET .� q,
property. SB TEMPORARY SEDIMENT BASIN 3.14 TUBE TO BE REMOVED BUT ORIFICE TO REMAIN 8' COMPACT SOIL TO 95% � F -� 04
� ) �� � 1 1.9' FREEBOARD Iy
stabifzationused for backfilling trenches shall be properly compacted in order to minimize erosion and promote aP OUTLEf PROTECTION (3.18) r��'-� �`�.�� T UNPLUGGED WHEN CONVERTING TO DRY POND - - - � - - BERM lVpJ z Q��
e. Restabilization shall be accomplished in accordance with this chapter. SR � �L 100 YEAR STORM DRY STORAGE-494.4 _ _
SURFACE ROUGHENING 3.29 -
f. Applicable safety requirements shall be complied with. � � ,�; ; TOE OF ELEVATION: 496.1� (475 YD3)
GRAVEL � �� � �' FILL
ro TOPSOILING (3.30) , ,a- �:
. >
17. Where construction vehicle access routes intersect paved or public roads, provisions shall be made to )��.. 6' ORIFICE TO BE TOP OF BERM=498.0'
rs TEMPORARY SEEDING (3.31) ����� ' ` DRILLED AND SEDIMENT J' 4.5'X4.5' ANTI SEEP COLLAR
minimize the transport of sediment by vehicular tracking onto the paved surface. Where sediment is � WET STORAGE-493.4 � J. Revision Dates
a PLACEMENT:
�'(`l� �� �;
transported onto a paved or public road surface, the road surface shall be cleaned thoroughly at the end of � - ��,� TO BE CLEANED OUT �^ 30"0 ��
Ps PERMANENT SEEDING (3.32) x r ,�� ,� *DISTANCE IS 6� 475 YD3) 25' FROM RISER 100 YR WSEL=496.1'
each day. Sediment shall be removed from the roads by shoveling or sweeping and transported to a sediment � WHEN CONVERTING TO J� HDPE 18"� HDPE �
> �` = c�. MIN. IF FLOW IS �p (SEE DETAIL SHEET 4 �O 7�6�21 PER CO
control disposol areo. Street washing sholl be allowed only ofter sediment is removed in this monner. This Mu MULCHING (3.35) % , ��, .� a� DRY POND (INV AT 490) A RISER CULVERT � F CREST ELEV=495J'
TOWARD t� SLOPE MIN--
provision shall apply to individual development lots as well as to larger land-disturbing activities. '�`� c �� �' <"
e/M SOIL STABILIZATION BLANKETS AND MATTING (3.36) �,�--� EMBANKMENT 8 12 21 PER CO.
18. All temporary erosion and sediment control measures shall be removed within 30 days after final site �c DUST CONTROL(3.39) o
stabilization or after the temporary measures are no longer needed, unless otherwise authorized by the VESCP J INV IN = 490
authority. Trapped sediment and the disturbed soil areas resulting from the disposition of temporary measures � 4'x4'x15" CONCRETE ANCHOR INV OUT = 489 20
shall be permanently stabilized to prevent further erosion and sedimentation. '� � � DISTURBED AREA COMPACTED SOIL
GRAVEL CULVERT INLET
19. Properties and waterways downstream from development sites shall be protected from sediment deposition, NUMBERS IN PARENTHESES REFER TO VESCH MEASURES TEMPORARY SEDIMENT BASIN/
erosion and damage due to increoses in volume, velocity and peak flow rate of stormwater runoff for the PROTECTION EMERGENCY SPILLWAY
stated frequency storm of 24-hour duration in accordance with the following standards and criteria. Stream EXTRA MEASURES TO BE ADDED AS NEEDED AS PERMANENT DETENTION POND
restoration and relocation projects that incorporate natural channel design concepts are not man-made DEfERMINED BY THE COUNTY INSPECTOR XA-CIP NTS N.T.S. NTS
chonnels and shall be exempt from any flow rate capacity and velocity requirements for natural or man-made
channels:
a. Concentrated stormwater runoff leaving a development site shall be discharged directly into an adequate R9R �
natural or man-made receiving channel, pipe or storm sewer system. For those sites where runoff is
discharged into a pipe or pipe system, downstream stability analyses at the outfall of the pipe or pipe system rc A dso=0.5'
shall be performed. L J� P LA N 9s POST CONSTRUCTION LEVEL SPREADER
���� � �� � ��� �. � �� SEE DETAIL SHEET 4 W-6,25'�
b. Adequocy of oll channels and pipes shall be verified in the following manner. � � � � ' � " �- i ' �� - -- __ � \
(1) The applicant shall demonstrate that the total droinage area to the point of analysis within the channel is R'9m � �� \ � � / � � � 'rBs - �Ca=9� _ _ - � _ _ _ _ _ _ - ' � � \ ��
100 times greater than the contributing drainage area of the project in question; or S � � �� � � � �`�� / � � CP�� �1�CKNESS=.14'-' �-- � � � � � \ \ � � �
(2) (a) Natural channels shall be analyzed by the use of a two year storm to verify that stormwater will not �� � \ \ �� .,�-x. �C���� �,�. � � � � � � 46R � � ' � � � � � � � \
overtop channel banks nor cause erosion of channel bed or banks, � . s � \� \ f;���� � - S� S _ i � _ _ _ _ _ - � , �
(b) All previously constructed man-mode channels shall be analyzed by the use of a 10-year storm to verify �� ,� � � \, � + _. � - � - - _ _ _ SF - , � �
that stormwater will not overtop its banks and by the use of a two-year storm to demonstrate that � M MU. � �
(stormwater will not cause erosion of channel bed or banks; and - ��- oso¢ \\� \ � \ �\ � - . � / DC _ _ 4gp I - ' TS ` / \ S \\ , � _
c) Pipes and storm sewer systems shall be analyzed by the use of a 10-year storm to verify that \ � \ \ \ ��T� -I _ . . . - - - _ . - .. ' \ � �. W
stormwater will be contained within the pipe or system. S � .� � � � � Z �
c. If existing natural receiving channels or previously constructed man-made channels or pipes are not '��. � �� � _. . � (n
adequate, the applicant shall: � � �� � , � 4g2 � � - . , ..qg¢. I W Q J �
(1) Improve the channels to a condition where a 10-year storm will not overtop the banks and a two-year SO� �� � - \ \ � � �Fr.2S'- � � - ' _ . , / �� � � � = J N
storm will not cause erosion to the channel, the bed, or the banks; , ,
2 Im rove the i e or i e s stem to a condition where the 10- ear storm is contained within the ��� ���� \ � \ � ' �Q=�� �� 4g4 � - -� � a� ��� � QP J Q
� ) P PP PP Y Y - �. � - - � � � � W J
appurtenances: � THICKNESS=14,, THICKNESS=14'> � p� �' X - >
(3) Develop a site design that will not cause the pre-development peak runoff rate from o two-year storm 3io ' � � � ,; � � O �
to increase when runoff outfalls into a natural channel or will not cause the pre-development peak runoff .� R J � ..
rate from a 10-year storm to increase when runoff outfalls into a man-made channel; or '`�6' ^ � H N W
(4) Provide a combination of channel improvement, stormwater detention or other measures which is � � , � 0 � J
satisfactory to the VESCP authority to prevent downstream erosion. s� , (� . 49B , � � U W J
d. The applicant shall provide evidence of permission to make the improvements. � �� � � � �
e. All hydrologic analyses shall be based on the existing watershed characteristics and the uRimate �/ �� �� / , �C J �' � (n
development condition of the subject project. C & SR ...�% 5�� � ' L w m � �
f. If the applicant chooses an option that includes stormwater detention, he shall obtain approval from the ,
VESCP of a plan for maintenance of the detention facilities. The plan shall set forth the maintenance , � ' �\�� - � � , X � O
requirements of the facility and the person responsible for performing the maintenonce. !. � �� 5p2 `s�o �� �� ' � � � N
g. Outfall from a detention facility shall be discharged to a receiving channel, and energy dissipators shall be ' � � - � U �
placed at the outfall of all detention facilities as necessary to provide a stabilized transition from the facility � i "'\\ �
to the receivin g channel. STOCKPILE LOCATION ' /\\ � 4 \ � U TO�� B N
h. All on-site channels must be verified to be adequate. � 1 , � - - - -_ _ - - � -- � � 5� �-�- -� �� � �� -- -- -�� _ - - - " � � � � � � DC , w
i. Increased volumes of sheet flows that may cause erosion or sedimentation on adjacent property shall be ` �` � `� � --� � � S PS R �
diverted to a stable outlet, adequate channel, pipe or pipe system, or to a detention facility. / � CRS � c � � � ��� - � � � � � �O � � �-.
j. In applying these stormwater management criteria, individual lots or parcels in a residential, commercial or � , I � - - � � - � - � - � � --�_ \ � � �' ---_ _.
industrial development shall not be considered to be separate development projects. Instead, the development, - - - - - y ��� �. � � \ ,.., - �
� � - - - - - - . . . - -lR - - -. � "
as a whole, shall be considered to be a single development project. Hydrologic parameters that reflect the , . � -- � - - - �. � � � - - - - �-- - - � � -
� --- - - � T'HRNAROUND PAD TO BE USED AS
ultimate development condition shall be used in all engineering calculations. � I � A STA�ING & PARKING AREA ONCE
k. All measures used to protect properties and waterways shall be employed in a manner which minimizes 1 . - - � � �
impacts on the physical, chemical and biological integrity of rivers, streams and other waters of the state. I �I _ - _ � PkELIMINARY GRADING IS COMPLETE
I. Any plan approved prior to July 1, 2014, that provides for stormwater management that addresses any flow � 8 � \ -�
rate capacity and velocity requirements for natural or mon-made channels shall satisfy the flow rate capacity � , i� I �� r 50 _ � � �
and velocity requirements for natural or man-made channels if the practices are designed to (i) detain the � , �I � I -� - - - .
water quality volume and to release it over 48 hours; (ii) detain and release over a 24-hour period the 1 , \ � ` _ �I `
expected rainfall resulting from the one year, 24-hour storm; and (iii) reduce the allowable peak flow rate - IL . � -
resulting from the 1.5, 2, and 10-year, 24-hour storms to a level that is less than or equal to the peak � ' ' - �, � ..
flow rate from the site assuming it was in a good forested condition, achieved through multiplication of the �
forested peak flow rate by a reduction factor that is equal to the runoff volume from the site when it was in � _ - _
a good forested condition divided by the runoff volume from the site in its proposed condition, and shall be � , �� � '- - 5pg � / �
exempt from any flow rate capacity and velocity requirements for natural or man-made channels as defined � � ��" ' �. -� . ,._�..,��, - - - ' ^ - � -
in any regulations promulgated pursuant to § 62.1-44.15:54 or 62.1-44.15:65 of the Act. � � � ���� � - � _ . _ - _. _. _. . _. __. _ _ ,_ � � 1 � � � Drawing No.
- - -
- - - - -
m. For plans approved on and after July 1, 2014, the flow rate capacity and velocity requirements of § '�� �_�_.� �� _. MU - - - - � .- � _ _ _ _ _ - :__ � -. _. �
62.1-44.15:52 A of the Act and this subsection shall be satisfied by compliance with water quantity � ' -�--- --- - � - - - � - - - - - - - - - __ _. _.. _ _ _. ._. - -- - - - - -- . . . � �
" .' - -� - 1 - - - � �
requirements in the Stormwater Management Act (§ 62.1-44.1524 et seq. of the Code of Virginia) and �- y„ �- � - - - -� - ---- - -- -- - �� � CRS � � � � � CRS �
attendant regulations, unless such land-disturbing activities (i) are in accordance with provisions for time �� � - -� - � � � � . �- Z
limits on applicability of approved design criteria in 9VAC25-870-47 or grandfathering in 9VAC25-870-48 of � GRS � .�6'� � � � � _ � -_� _ /�� \ .� �,'� J
the Virginia Stormwater Management Program (VSMP) Regulation, in which case the flow rate capacity and S � � � � � � � \ , STOCKPILE LOCATION �� � �
velocity requirements of § 62.1-44.15:52 A of the Act shall apply, or (ii) are exempt pursuant to § ` � _ _ _ _ _ � _ _ � � �' ' � - - � . � ' �� _ , T�.�\\ ,�
62.1-44.15:34 C 7 of the Act. � -� � � � � � ��� �- �
n. Compliance with the water quantity minimum standards set out in 9VAC25-870-66 of the Virginia �k � � � � � / 504 STAGING & PARKING AREA , Of 4 Sheets
Stormwater Management Program (VSMP) Regulation shall be deemed to satisfy the requirements of this y � � � � � � - - - - � � � � � , GRAPHIC SCALE
subdivision 19. -� / i / � - � � �
/ /� �� � _ _ _ 502 - - � � �� , , , , � , �' 0 50' 100'
� � � � .. - - - - � � �
572 _ _ � i/ ,� � � � � � i � � - _ 500 - � � � �� � � � � �
i " - - / �� � � � ' � � - - � � - � � � � �� , , � sca�e i"=50' Job No. 2888
- i ,_ .� i . 4s8 �- ' �. . .
510
ALBEMARLE COUNTY
FINAL PLAN GENERAL NOTES �Qt0Rt10I1 p011(1 MaIIIYCIla11CC E�Ct1V1tIQS SUggCStCC� FYQC�UCIICy Date: 3�21�21
GENERAL CONSTRUCTION NOTES � � ;, Mow side slopes. Twice dunng growing season, �
�'�, COUNTY OF ALBEMARLE
1.PRIOR TO ANY CONSTRUCTION WITHIN ANY EXISTWG PUBLIC RIGHT-OF-WAY, INCLUDING CONNECTION TO ANY EXISTING ROAD, A ��� = De �rtment of Communit Develo ment 8S ne0ded dUt'ing Off 5035017 A11701T13T'10 COUrity �OSlgri StaridaTCIS MariU31 - Erig1ri00Plrig ��t
1 P� y P �` Scale: AS NOTED
PERMIT SHALL BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF TRANSPORTATION (VDOT). THIS PLAN AS DRAWN MAY NOT ��� Remove accumulated trash and debris from the basin, Quarterly, or more frequently,
ACCURATELY REFLECT THE REQUIREMENTS OF THE PERMIT. WHERE ANY DISCREPANCIES OCCUR THE REQUIREMENTS OF THE PERMIT `.,,,,,,. ' 3YOurid th0 YISeC 1 e SldO S10 0S, eri1b2I1k1T10rit, 3S rie0ded
SHALL GOVERN. P P + P
2.ALL MATERIALS AND CONSTRUCTION METHODS SHALL CONFORM TO CURRENT SPEGFICATIONS AND STANDARDS OF VDOT UNLESS Construction Record Drawings (As-built) for VSMP
oTHERwiSE NOTED. emergency spillway, and outflow trash racks. The 9 Y�
esi ne
3.EROSION AND SILTATION CONTROL MEASURES SHALL BE PROVIDED IN ACCORDANCE WITH THE APPROVED EROSION CONTROL PLAN fC0Qu0riCy Of thlS 3Ctivlty ri13y be 3lteYed t0 IlleOt Sp0C1fIC
AND SHALL BE INSTALLED PRIOR TO ANY CLEARING, GRADING OR OTHER CONSTRUCTION. TI10 fOIIOWlrig 15 d I1SI Of 1llfOT'llldtlOri I0C]U1T0CI Ori COriStIUCIlOri T'eCOT'CI C1T'd.WlrigS f01' 'ii0�t �J' �.�iV.
site conditions.
4ALL SLOPES AND DISTURBED AREAS ARE TO BE FERTILIZED, SEEDED AND MULCHED. ��NST�iU�-10n Drawn b : BWK
stormwater facilities (reference Water Frotection Ordinance 17-422). It is preferable that the Manage pesticides and nutrients. Annually nc:cF�s 3•� sv-zN �,�,Hn�T -��- Y
5.THE MAXIMUM ALLOWABLE SLOPE IS 2:1 (HORIZONTAL:VERTICAL). WHERE REASONABLY OBTAINABLE, LESSER SLOPES OF3:1 OR
BETTER ARE TO BE ACHIEVED. COYISIYLlCll012 Y2COYCI CZYRWU2g I7C]1Y2J7QYeCI I7y SOYl220tt2 OZ�YeY 1I7R12 ZI22 C�CSl�T72CY. PI�CIS� CIO 1201 � CO:.RS� _F y.;_..,,.,i,
6.PAVED, RIP-RAP OR STABILIZATION MAT LINED DITCH MAY BE REQUIRED WHEN IN THE OPINION OF THE COUNiY ENGWEER, OR YOVIClE C�2Sl Yl C�YCiWl12 S LlS C012StYLlCZl072 Y2COYCt CL�YCLWitt S Y g g g Y ,� � � _ �� � �� F "+��°^�rN� Checked b NHK
Trim wood ve etation at the be mnin and end of the Semi-annuall , or more
DESIGNEE, IT IS DEEMED NECESSARY IN ORDER TO STABILIZE A DRAINAGE CHANNEL. p g g g ' -- - Y'
_'" -F'� :;-�-
1
�
wet season to revent establishment of wood ve etahon fre uentl as needed
� � A� -- -
7.ALL TRAFFIC CONTROL SIGNS SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES. P Y g 9 Y+ i � , �
8.UNLESS OTHERWISE NOTED ALL CONCREfE PIPE SHALL BE REINFORCED CONCREfE PIPE -CLASS III. A. A signed and dated professional seal of the prepanng engineer or surveyor. and for aesthetic and vector control reasons. � ^� ---
9.ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY Re air undercut or eroded areas. Annuall ��-5` �`.1 r�. 2'-. �^r_., .__:=J�_ ��..<�5t
(2s cFR PART t szs). B. The name and address of the firm and individual preparing the drawings on the title sheet. P Y
C. The constructed location of all items associated with each facility, and the inspection records to verify Control vectors by eliminating ponding areas. Annually, as needed PROFI LE
GENERAL CONSTRUCTION NOTES FOR STREETS (THIS LIST IS IN ADDITION TO THE GENERAL CONSTRUCTION NOTES� proper dimensions, materials and installation. The items include, but are not limited to the following:
Keep access road clear of obstructions and woody Annually �
1.CONSTRUCTION INSPECTION OF ALL PROPOSED ROADS WITHIN THE DEVELOPMENT WILL BE MADE BY THE COUNTY. THE CONTRACTOR L IIISp¢CYiO►1 ReCOYdS arid phOtOgraph5 fOr pipe trettCheS and bedding, indUding Uriderdraltt5. VegetahOn. _ ,,_;� �,, h � �
MUST NOTIFY THE DEPARTMENT OF COMMUNITY DEVELOPMENT (296-5832) 48 HOURS IN ADVANCE OF THE START OF CONSTRUCTION. 2, VIdeO Pipe InSpeCtlOn foi any pipeS which aie nOt acceSSible oY viewable. ��r�;��•,�� � �
2.UPON COMPLETION OF FWE GRADING AND PREPARATION OF THE ROADBED SUBGRADE, THE CONTRACTOR SHALL HAVE CBR TESTS 3. U dated Location with 0o-Coordinates Of dll faCiliti05. SeOd Or SOd t0 reStOre d03(1 Or aama �_�___//��� �<�,����G- -'��`�' =- m �
PERFORMED ON THE SUBGRADE SOIL THREE 3 COPIES OF THE TEST RESULTS SHALL BE SUBMITTED TO THE COUNTY. IF A p � gedgroundcover. Annually, asneeded `:'�N�'��`�`��;���;���, �
SUBGRADE SOIL CBR OF 10 OR GREATER IS NOT OBTAINABLE, A REVISED PAVEMENT DESIGN SHALL BE MADE BY THE DESIGN 4. VOCIflOd DP81n8ge ATCB TIl8p5 fOI the dlaln3ge 3C08 tl'02t0d, 311d f01'd1'81ri8g0 t0 the f8C111t1eS. ACCE�S �, � � �,n;p;H�;n;;� � � o
ENGINEER AND SUBMITTED WITH THE TEST RESULTS FOR APPROVAL 5. CuCPent phySlCa1 and tOpOgiaphlC SUPV¢y for all eartheri structures. Ponds should include a suivey -���` � �_� ' � ! � „� c
3.SURFACE DRAINAGE AND PIPE DISCHARGE MUST BE RETAWED WITHIN THE PUBLIC RIGHT-OF-WAY OR WITHIN EASEMENTS PRIOR TO MOIl1tOY Stl'uCtuY31 COIllp017e11t5 (pipOS, CISeC StCUCtuCeS, Aill]u311y, 3S I70eded � (�" !� C�
ACCEPTANCE BY THE COUNTY. ALL DRAINAGE OUTFALL EASEMENTS ARE TO BE EXTENDED TO A BOUNDARY LINE OR A NATURAL of the ond bottom. Surve 5 should venf ond volumes are er desian. Corrections ma be re uired . - �; �''�"�. '_x��5r �v�� �
p Y Y P p c Y 9 orifice lates or ener dissi aters for si ns of ?` "`�;;� °''��' �� 2� '%�'rF",.-F•��� o X v
WATERCOURSE. P �'Y P � �' �� t�c , t_ � '2' dd IV.* ' oo ¢ c
for alterations from Che design. -ti�r,-�`�, ,���7 �i �„ �
4.GUARDRAIL LOCATIONS ARE APPROXIMATE EXACT LENGTH, LOCATION AND APPROPRIATE END TREATMENTS WILL BE FIELD VERIFIED deteriOratiOn SUCh a5 CraCkS, Sink hOleS, and SeparatiOn. ��� ,�.tu��, � V °p
AT THE TIME OF CONSTRUCTION. ADDITIONAL GUARDRAIL MAY BE REQUIRED AT LOCATIONS NOT SHOWN WHEN, IN THE OPINION OF 6. P18IIL5,lOCBtIOri 817d typC. .';�����,y�s�;���c��. i i a � � � _
THE COUNTY ENGINEER, OR DESIGNEE, IT IS DEEMED NECESSARY. WHEN GUARDRAIL IS REQUIRED, IT SHALL BE INSTALLED FOUR (4) 7. p1RnS 8nd pYOfil¢S fOY 811 Culv¢PtS, Pip¢S, RiS¢YS, WCiCS and DTBinagQ StPUCtuT¢S - DiS�Jlay the Repair erosion to banks and bottom as reC]uired. Annually, as needed � . �i��-n i�j�-_�'�j 1 � � .�� 3
FEET OFFSET FROM THE EDGE OF PAVEMENT TO THE FACE OF GUARDRAIL, AND ROADWAY SHOULDER WIDTHS SHALL BE INCREASED ittStalled type Of diainage Stcuctuces, culveCt/pipe Slze, WeiCS, mateIIalS, 1n1etS oc erid tceatment(S), �apsiT'•.�� DRaiNacf � � v > m u
TO SEVEN (7) FEET. ��,�U��- EX�-'J_� r=LL_ ',NI_TH � a �
5.WHERE URBAN CROSS SECTIONS ARE INSTALLED, ALL RESIDENTIAL DRIVEWAY ENTRANCES SHALL CONFORM TO VDOT CG-9(A, B OR inlet and outlet protection, alignment and invert elevations compared to design. Supplement wetland plants if a significant portion has not Annually, as needed OF iN�::RES� .=��u_� ECRES; � ip 5_�P.�E��r �� � ��m
�f-:,+=-��,p.r._ ,,,,
C). 8. Computations: For significant deviations from design, provide sealed computations verifying that been established (at least 50% of the surface area). (Enhanced-Extended �F'�rrariav � �` `'"'"��� r � d � � v�V, w�
6.WHERE RURAL CROSS SECTIONS ARE INSTALLED, ALL RESIDENTIAL DRIVEWAY ENTRANCES SHALL CONFORM TO VDOT STANDARD � _
PE-�. the as-built condition is equivalent or better than design. Detention Only) P�N •� w � m
� v -
7.COMPLIANCE WITH THE MINIMUM PAVEMENT WIDTH, SHOULDER WIDTH AND DITCH SECTIONS, AS SHOWN ON THE TYPICAL PAVEMENT 9. DILCIl L111CS - D15PIdy tI12 COIIStT'LLCte(� �OCat101] Of d�I (�1tCI111I1e5 dCl(� Ck1�lIlII21S, lIIC1U(�lllg tyP1CaI � _ � o ��a
SECTION DETAIL, SHALL BE STRICTLY ADHERED T0. sections and linin s. W v1Di = a w
8.ROAD PLAN APPROVAL FOR SUBDIVISIONS IS SUBJECT TO FINAL SUBDIVISION PLAT VALIDATION. SHOULD THE FINAL PLAT FOR THIS g RemOVe nUISanCe Or 1nVaSiVe plant SpeCieS. AnnUally, aS needed
PROJECT EXPIRE PRIOR TO SIGNING AND RECORDATION, THEN APPROVAL OF THESE PLANS SHALL BE NULL AND VOID. 10. EaS¢meritS - Show all platted eaSementS with dead bOOk CeferenceS labeled. FacilitieS and d[ainage �. 1:' �.�I'.. -;:s;�,i 'vF !;b:��ir�ir,:-:1
9.ALL SIGNS OR OTHER REGULATORY DEVICES SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES must be within platted easements. Provide copies of rewrded documents. ~�T�� SE_:�i�dE�<T
AND THE ALBEMARLE COUNTY ROAD NAMING AND PROPERTY NUMBERING ORDINANCE AND MANUAL. . , ROmOve Sedimerit frOm fOrebay t0 reduCe thC frCqueriCy Annually, aS rieeded, if � I t�:.^,-i J !::-'v���!:F
lO.TRAFFIC CONTROL OR OTHER REGULATORY SIGNS OR BARRICADES SHALL BE INSTALLED BY THE DEVELOPER WHEN, IN THE I 1. Guardrail, fCriCCS OI'Otf10t SBfCty piOVIS10riS - D1Sp�8y th0 COt1StrUCtOd ]OC8[1011 Of 3�� S2f0[y of main basin cleaning. applicable "''S"y�,c, ;'Cs� - �� �f `'� ' �'- T - a,t�.._ `
OPINION OF THE COUNiY ENGINEER, OR DESIGNEE, THEY ARE DEEMED NECESSARY IN ORDER TO PROVIDE SAFE AND CONVENIENT pl'OVISiOTIS; f011C05, guardrail, 1nClUdlrig the typ0, 10ngth arid 3pp110d 011d tCO3tI77e11tS, COTllp81'ed t0 ���✓�{-'2 _ -i� ;�'i
ACCESS. "`�.�cc��` � .t,�� .<'��'l�'�'✓
11.THE SPEED LIMITS TO BE POSTED ON SPEED LIMIT SIGNS ARE 5 MPH BELOW THE DESIGN SPEED, OR AS DETERMINED BY VDOT design. Monitor sedimerit acCumulation and remove aCCumulated Every 10-25 yEarS, aS needed �� , ;,
FOR PUBLIC RoaDs. 12. Material layers-biofilter media, stone layers, sand layers, keyways and cores must be verified as to sediment and re-grade about every l0 years or when the r����` `L--��
12.VDOT STANDARD CD-1 OR CD-2 CROSS-DRAINS UNDER TO BE INSTALLED UNDER THE SUBBASE MATERIAL AT ALL CUT AND FILL �paC0I181 typOS 2nd dOpthS. InCIUdB i17Sp0Ct1011 TOpOCCS, b011I1Q OC tOSt plt 1'BpOCtS 8nd Tn3t0I'i21S 3CCUY17ul3t0d SOdltT1011t vOlulnO 0xC00dS 10-20% Of th0 ������� �-�
TRANSITIONS AND GRADE SAG POINTS AS SHOWN ON THE ROAD PROFILES.
13.A VIDEO CAMERA WSPECTION IS REQUIRED FOR ALL STORM SEWERS AND CULVERTS THAT ARE DEEMED INACCESSIBLE TO VDOT certifications. Biofilter media must be an approved state mix. basin volume, or when accumulation reaches 6 inches or
OR COUNTY INSPECTIONS. THE VIDEO INSPECTION SHALL BE CONDUCTED IN ACCORDANCE WITH VDOT'S VIDEO CAMERA INSPECTION 13. ACceSS r08dS - show location of access roads, surface treatment, drainage, ete, as applicable. if re-suspension is observed. Clean in early spring so A n�uwmun�v�rzr tap of 1 n�cl�mu�t be vi�tallecl��itli a ummnum 1 uicli ballcock
PROCEDURE AND WITH A VDOT OR COUNTY INSPECTOR PRESENT. 14. COmpaCtlOn l'CpOI'1S 31'0 rP,C]UIrOd t0 Verlfy flll COmpBChOn in d3mS. V0get3t101] dflCll3geC1 CIUCIrig Cl02rilrig h3S tltl]0 t0 i0- EllntoffF'fll��e 6npp11711$ a tVa51111o�e bV1t11 a CGa111eYer of�1.? nlClle� 1or adeqllate
couetant pre�cure. ��`a�li water um:t be canied awat•from tlie eutrauce to au
GENERAL CONSTRUCTION NOTES FOR EROSION AND SEDIMENT CONTROL PLANS 15. ManUfaCtUrerS CertlfiCatlOriS fOY pYOpYletary BMP's Certlfying prOpeY installatiOn and funCtlOnittg. establish. approved setHalu area fo reulo�'e �edulleut. ��11 �eclulleut sllall be prei'euted$�o�n ��ly\� a �3
1.THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE-CONSTRUCTION CONFERENCE, ONE WEEK eute�ui, �tonu cu�an��, ditcl�e� or �caterc�oiu��e�. � � �
PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVIN, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. J� � � ���
ANDLSPEC FII�CATIONS OF�ITHE VIR�G NIA�EROS ON AND SIEDIMENT�CONTROLEH�ANDBOOKI AND VIRG NCA� REGULAT�IONS IVR 625A0�2AOOS PAVED WASH RACK S o � �'�
EROSION AND SEDIMENT CONTROL REGULATIONS. F.
3.ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. ��'�' �=;r-C � � N ¢
4.A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES.
4 0 � O
5.PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDWG, BUT NOT 3 ^ z � c�`�
LIMITED T0, OFF-SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO '�'� J 04k'
THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. �V F- �t
6.THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT �VQ,� z e
EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY.
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 IS ACHIEVED. Pagc A of 23
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 EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE Revision Dates
IMMEDIATELY.
10.ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 7�6�21 PER CO
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. Target and Neighboring Parcel Information 8 1 2 21 PER C0.
12.BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLEfION PER ZONING ORDINANCE SECTION 5.1.28. TaxMap# ParcellD Owner ZoningDistrict Use
13.ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF THE CODE OF ALBEMARLE.
14.BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL-TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:OOAM 129-5 12900-00-00-00500 TROXELL,ASHLEY ANNE; BROC ATROXELL; WILLIAM FRED HESS& HEATHER F HESS Rural Areas Misc. Improvements
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 121-70D 12100-00-00-070D0 SWANBERG, GREGORY J OR JOAN M Rural Areas Single Family
BECAUSE OF SLIDES, SINKING, OR COLLAPSE. 121-70E 12100-00-00-070E0 TROXELL,ASHLEY ANNE; BROC ATROXELL; WILLIAM FRED HESS& HEATHER F HE55 Rural Areas Single Family
i6.THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER 1992 3.I4
MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE 121-70A 12100-00-00-070A0 SWANBERG, GREGORYJUDE &JOAN MARIE SWANBERG Rural Areas Vacant Residential Land
OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY.
17.TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS/ACRE, AND IN THE DE TAIL S OF CORR UGA TED ME TAL 129-4 12900-00-00-00400 WOODSTOCK FARM LLC Rural Areas Single Family
MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH 129-46 12900-00-00-004B0 P&V COLEMAN FAMILY PARTNERSHIPLLLP RUrdlAredS VdCantReSidentidlLdnd
AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLEf. STRAW MULCH IS TO BE ANTI- SEEP COLLAR 130-SB1 13000-00-00-005B1 BRAYMAN, BRUCE &JILL MATSON Rural Areas Misc. Improvements
APPLIED AT SOLBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR.
i B.PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE 130-4 13000-00-00-00400 PARANZINO, DENNIS H OR HELEN C Rural Areas Single Family
Ns.uL CowR wm�
SHALL BE APPLIED AT 90LBS/10005F, INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT co�aurr,nc.+s wnMx �Wt i0 BE Of SuiE WGC AS iHE 130-1 13000-00-00-00100 TOTIER CREEK FARM LLC Rural Areas Sin le Famil
1000LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 180LBS/ACRE AND APE MRM WNILN rt�5 Wm g Y
CONSIST OF 957 KENTUCKY 31 OR TALL FESCUE AND 0-57 PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS m�*r�+a�s wm� 122-SA 12200-00-00-OOSAO STEPHEN R HAECKEL Rural Areas Vacant Residential Land
TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. +/r x z aor�n w�s roe ir ww.
19.MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO 3�� °�"i�x B°�rs'
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 i
IMMEDIATELY. �° ' ' '� � ° ' �7 . W
20.ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, awo Q W O
WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. "E`° a°'"Si°6 � � Z �
AATIED Xd.[5 G09tUG�TED METK N L�
��,"N�ous'�w "' r `.`. SECTION B-B :"�`"°°� '° �J p Q
GENERAL CONSTRUCTION NOTES FOR STORMWATER MANAGEMENT PLANS cwicnorawo
ER O . � � � = J J N
1.ALL DAMS AND CONSTRUCTED FILL TO BE WITHIN 959 OF MAXIMUM DRY DENSITYAND 2% OF OPTIMUM MOISTURE CONTENT. ALL ' G � � J J
FILL MATERIAL TO BE APPROVED BY A GEOTECHNICAL ENGINEER.A GEOTECHNICAL ENGINEER IS TO BE PRESENT DURING ELEVATION OF UNASSEMBLED COLLAR � ANTI- VORTEX DEVICE DESIGN N � w J Q
CONSTRUCTION OF DAMS. 3. UNASSEMBLED COLLARS SHALL BE MARKED BY $? � � X >
2.PIPE AND RISER JOINTS ARE TO BE WATERTIGHT WITHIN STORMWATER MANAGEMENT FACILITIES. NOTES FOR COLURS: PAINTiNG OR TAGGING TO IDENTIFY MATCHINC � � �
3.FOR TEMPORARY SEDIMENT TRAPS OR BASINS WHICH ARE TO BE CONVERTED TO PERMANENT STORMWATER MANAGEMENT FACILITIES; PAIRS. �" PRESSURE RELIEF J � ^
CONVERSION IS NOT TO TAKE PLACE UNTIL THE SITE IS STABILIZED, AND PERMISSION HAS BEEN OBTAINED FROM THE COUNTY 7. aLL AIATERIALS TO BE IN ACCORDANCE WITH a. THE UP BE7WEEN iNE TWO HALF SECTIONS � HO�ES 1/2' DiA. I ^ O H � J
EROSION CONTROL INSPECTOR. CONSTRUCTION AND CONSTRUCTION MATERIAL AND BETWEEN THE PIPE AND CONNECTING BAND d
SPEqFICATI0N5. SHALL BE CAULKED WITH ASPHALT MASTIC AT � �i �% � O7 � U w J
2. WHEN SPECIFIED ON THE PUNS, COATING OF TIIAE OF INSTALLATION. �
COLLARS SHALL BE IN ACCORDANCE WITH 5. EACH COLUR SHALL BE FURNISHED WITH TWO � q " �4� "'-� � A O � ;% O O � �
CONSTRUCTION AND CONSTRUCTION MATERIAL 1/Y DIAMETER RODS WITH S7aNDaRD TANK y j/� il '�� i!j;� TOP STIFFENER (IF REQUIRED) (n J � � (n
SPECIFICATIONS. LUGS FOR CONNECTING COLLARS TO PIPE. } � il �, /1,':� TD TO AP ND D IENTEOEPE�RD � X m � O
TYPICAL TREATMENT - 1 L� -- ' - -_'�-_-------_�!-a o ;-;!;' O PENDICUL4R TO CORRUGATIONS.
(SOIL STABILIZATION BLANKET) DETA I L O F H E L I C A L P I P E -� ;! ' , :' ;� � V � � N
INSTALLATION CRITERIA ,2��MAX. 4:, oR FLATTER ANTI- SEEP COLLAR �`� '; '� i o ;`,�` o � TOP IS-GAGE CORRUGATED
6"MAX. STEEPER THAN a:i O - ' '� O I � M E T A L O R 1/8" S T E E L P L A T E. N
LAP JOINT 2" MIN. � � � �1'11�Y��I��%�/N' �„F�TO COLUR OR BEND A 90� � 'f���� � � � PRESSURE RELIEF HOLES MAY �yJ
SIZE AND SPACINC oF s�OTTED � � �� j BE OMMITTED, IF ENDS OF
(JUTE MESH ONLY) � � � OPENINGS SHALL BE THE SANE ;
� ANCHOR SLOT � „�� NOTE FOR BnNDS nND COLLARS: ; , CORRUGATIONS ARE LEFT FULLY
� i i AS SHOWN FOR CM COLLAR. AIODIFICATIONS OF THE DETAILS � OPEN WHEN THE TOP IS
� �EDGE nnlD USE RODS AND LUGS TO CLAMP �� SHOWN MAY BE USED PROVIDING � PLAN VIEW ; � ATTACHED.
� i i i i END JOINTS BANDS SECURELY TO PIPE. � ��e. E�UAL WATERTIGHTNESS IS `� � i
� � � � � TO BE \ MAINTAINED AND DETAILED �, � o _� I
� 5' MA%. 4.1 OR FlAiiER i SNUGLY �Z 41N. �
� JUNCTION SLOT J' MA%. 4EEPFR TWW 4:t i /� DRAWINGS ARE SUBMITTED AND �
i ' i ABUTTED � � TACKVIELD r I
APPROVED BY THE ENGINEER PRIOR ED CYIINDER IS-CAGE CORRUGATED
� ��� CHECK S�OT � � � WJILLEHAVEH � � ` TO DELWERY. ALL AROUN� �$AL PIPE OR FABRICATED FROM
� TERMINAL FOLD � � � i �i i ii STAPLED LAP XN�qpE \ H STEEL PLATE.
TAMP FIRMLY � i i � i JOINT IN ISOMETRIC VIEW
*CHECK SLOT � � " ' LIEU OF EDGE
ANCHOR SLOT � � � � JOINT)
�.- � s �c*.0 cowx suu ae cur +o m
NOTES:
Cl]WtUMliWS Of nE1N'lL 8U0. .wD
� 6" T 12" �r � V.n.-�sI€�€ �. i iI "°°i''o ws ""'°`° """ "o'""""°us "`°. � :�- 8' M�IJ. 1. THE CYLINDER MUST BE
�� t 1 PLAN VIEW NOTE: FOR DETAILS Of FABRICATION DIMENSIONS, NINIIAUM GAGES, FIRMLY FASTENED TO THE
STAPLINC DIACRAM SLOTTED HOLES, AND NOTES, SEE DETAIL ABOVE. TOP OF THE RISER.
� r--1" TO 2'•
' CHECK SLOTS AT MIN. uecu eau.ue ro ec �
�AMP FIRMLY � 50' C-C INTERVALS; ,�� ro �Q � NOTE: TWO OTHER TYPES OF ANThSEEP COLLARS ARE: SUPPORT BAR SIZE Drawin NO.
CHECK SLOT 1E11fI1 PPE BVlI (�e x tz" 2. SUPPORT BARS ARE WELDED 9
6' TO IN. NOT REQ"D. WITH ALL 1. CORRUGATED METAL, SIMILAR TO UPPER, EXCEPT SHOP SPACER BAR �. ({J6 REBAR MINJ TO THE TOP OF THE RISER
2, "COMBINATION" BLANKETS WELDED TO A SHORT (4FT.) SECTION OF THE PIPE AND (TMP��A�� , OR ATTACHED BY STRAPS
6" 0�12" CONNECTED WITH CONNECTING BANDS TO TNE PIPE. �� BOLTED TO TOP OF RISER.
�� STAPLE FORMED FROM N0. 11 srEE� wiRE. PARTIAL ELEVATION 2. CONCRETE, SIX INCHES THICK FORMED AROUND THE PIPE b RISER DIAMETER
8" STAPLE MIN. LENGTH FOR SANDY SOIL. iar: oan. nm wwuu WI7H �S REBAR SPACED 15 HORI20NTALLY AND VERTICALLY. p� I �
6" STAPLE MIN. LENGTH FOR OTHER SOIL. � I
NOTES
W
JUNCTION SLOT T�RMINAL FOLD qppROXIMATELY 200 A SECTION A-A ISOMETRIC t�
�� TAMP FIRMLY � TAMP FIRMLY STAPLES REQUIRED Source: USDA-SCS Plate 3.14-13 � A Of 4 Sheets
PER 100 SQ. YDS. OF �
2^ z^ MATERIAL ROL �
T 6" TO 12" ANCHOR SLOTS,
JUNCTION SLOTS &
CHECK SLOTS TO BE �
Souree: VDOT Road ¢nd Bridge Stand¢rda P(¢te 3.36-2 BURIED 6" TO iz�. III - 109 �
Job No. 2888