HomeMy WebLinkAboutWPO201300033 Plan - Approved 2013-04-30GENERAL NOTES
0 WNER:
PEABOD Y SCHOOL
Sheet Title
1232 STONEY RIDGE ROAD
COVER
CHARLOTTESVILLE, VA 22902
ENGINEER:
COLLINS ENGINEERING
PHASE I EROSION & SEDIMENT CONTROL PLAN
200 GARRETT ST. SUITE K
PHASE II EROSION & SEDIMENT CONTROL PLAN
CHARLOTTESVILLE, VA 22902
STORMWATER MANAGEMENT PLAN
TELEPHONE: (434) 293 -3719
FAX. •
(434) 293 -2813
CONTACT- MR. SCOTT COLLINS, P.E.
EMAIL:
scot gcollins— engineering.com
REPRESEN TA TI VE:
WILLIAMS MULLEN
321 EAST MAIN STREET, SUITE 400
CHARLOTTESVILLE, VA 22901
TAX MAP NO.:
76M1-15
AREA-
5.091 AC. -
WPO PLAN
SCOTTSVILLE DISTRICT
ALBEMARLE COUNTY, VIRGINIA
CURRENT ZONING: PUD— COMMERCIAL (ZMA 96 -21) & SUP 1996 -46. SPECIAL USE PERMIT '
2012 -30 CURRENTLY UNDER REVIEW. PROPOSED SP APPLICA TION IS AN
AMENDMENT TO CONDITION #1 OF THE SUP 1996 -46 TO INCREASE THE I
STUDENT ENROLLMENT UP TO 210 STUDENTS.
e
USE. EXISTING PRI VA TE SCHOOL. PROPOSED ADDITION OF A GYMNASIUM AND
CLASSROOMS TO THE EXISTING FACILITY. PROPOSED HEIGHT- 40' MAX.
SETBACKS: FRONT SETBACK: EXISTING 30' SETBACK FROM STONEY RIDGE ROAD ,� ''�'` �' F x�
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PROVIDED FRONT SETBACK: 15 ' FROM STONEY RIDGE ROAD \
\ I
PARKING SETBACK. EX. 10' PARKING SETBACK FROM STONEY RIDGE ROAD a
a
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SIDE SETBACK. 20' SIDE BUILDING SETBACK ��' ' - `� e� \
UTILITIES: EXISTING FACILITY IS CURRENTLY SERVED BY PUBLIC WATER AND
I
PUBLIC SEWER ,_ � � �\ � \\ \`� �� �aa4 , \`` \'\ N,
SURVEY. BOUNDARY SURVEY PROVIDED BY LINCOLN SURVEYING IN AUGUST, 2012_.
TOPOGRAPHY WAS PROVIDED BY COMMONWEALTH LAND SURVEYORS IN �\ �� �\�„ a� 1MV
JANUARY, 2013.
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ACCESS: THE SITE CURRENTLY HAS AN EXISTING ACCESS ENTRANCE FROM STONEY
RIDGE ROAD THAT SERVES AS THE ACCESS TO THE SITE
—`_/
OPEN SPACE: 1.92 ACRES OF THE 5.09 ACRE PARCEL IS CURRENTLY DEEDED OPEN
SPACE IN DEED BOOK 1342, PG. 238 & 239; AND DEED BOOK 1102, PG
\ -2
722. THE DEEDED OPEN SPACE ON THE PARCEL IS CURRENTLY 387.f OF
THE PARCELS TOTAL AREA
r,
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PARKING: THERE ARE CURRENTLY 33 EXISTING PARKING SPACES ON THE PARCEL
LOADING SPACES USED FOR DROP—OF AN>�
WITH ADDITIONAL / \ \ \
SPECIAL EVENTS. 28 ADDITIONAL PARKING SPACES ARE PROPOSED WITH \ ��
THIS SPECIAL USE PERMIT AMENDMENT, WHICH INCREASES THE TOTAL �. , \
-` \
PARKING FROM 33 SPACES TO 61. IN ADDITION, THE PEABOD Y SCHOOL
DOES HAVE A PARKING AGREEMENT WITH THE OTHER ADJACENT PARCELS / r` \ -''
TO ALLOW OFFSITE PARKING FOR SPECIAL EVENTS AND STAFF PARKING AS �`�
NEEDED.
THE TOTAL PARKING FOR THE PEABODY SCHOOL IS AS FOLLOW' /ED: - = °"=""�
` \ ` \ \\
PROPOSED STUDENTS: 210 STUDENTS;. \
EMPLOYEES t
PROPOSED TEACHERS /STAFF. 37 EM
GUEST PARKING' 1 SPACE PER 15 STUDENTS = 14 PARKING SPACES
STAFF PARKING: 1 SPACE PER STAFF MEMBER = 37 PARKING SPACES
SPECIAL EVENTS: OFFSITE PARKING ADJACENT PARCELS & BUSINESSES)\ -
TOTAL PARKING REQUIRED: 51 SPACES ,
TOAL PARKING PROVIDED: 61 SPACES
TRAFFIC GENERATION (TRIPS PER DAY):
THE INCREASE OF STUDENT ENROLLMENT TO 210 STUDENTS WILL CREATE ` \k / �"fi�'
THE FOLLOWING ESTIMATED TRAFFIC VOLUMES (BASED ON THE NTE 7TH y
EDITION TRIP GENERATION MANUAL FOR PRIVATE SCHOOL):
\
ORIGINAL SUP: 140 STUDENTS
WEEKDAY (A. M. PEAK HOUR): 126 VEHICLE TRIPS PER PEAK HOUR
WEEKDAY (P.M. PEAK HOUR): 86 VEHICLE TRIPS PER PEAK HOUR
PROPOSED AMENDMENT TO SUP: 210 STUDENTS ~`
WEEKDAY (A. M. PEAK HOUR): 189 VEHICLE TRIPS PER PEAK HOUR SHEET LAYOUT
WEEKDAY (P.M. PEAK HOUR): 128 VEHICLE TRIPS PER PEAK HOUR
SCALE: 1" = 50'
WA TERSHED: MOORE'S CREEK WA TERSHED, THIS SI TE IS NOT LOCH TED Wl THIN A PUBLIC
WA TER SUPPL Y RESER VIOR AREA.
CRITICAL SLOPES: NO CRITICAL SLOPES EXIST WITHIN THE PROPOSED LIMITS OF DISTURBANCE
EXISTING CRITICAL SLOPES DO EXIST WITHIN THE DEDICATED OPEN SPACE OWNER
AREA AND WILL REMAIN UNDISTURBED.
FLOODPLAIN: FEMA MAP NO: 51003CO288D, DATE: 21412005 P EA B O D`1( SCHOOL
NOTE.• THIS PROJECT IS NOT LOCATED WITHIN FL0ODPLAIN LIMITS 1232 STONEY RIDGE ROAD
LIGHTING.• NO LIGHTING IS PROPOSED AT THIS TIME FOR THE PARKING LOT EXPANSION. CHARLOTTESVILLE, VA 22902
THERE WILL BE EXTERIOR LIGHTING PROVIDED ON THE PROPOSED BUILDING
EXPANSION WHICH WILL MEET THE ALBEMARLE COUNTY LIGHTING AND DARK
SKY ORDINANCE. THESE LIGHT FIXTURES SHALL NOT EMIT MORE THAN
3, 000 LUMENS.
TRASH COLLECTION: THERE IS AN EXISTING DUMPSTER LOCATED ONSITE AND SHOWN ON THE ENGINEER
SITE PLAN
PHASING: NO PHASING IS PROPOSED COLLINS ENGINEERING
EXISTING IMPERVIOUS AREAS: ROADS /CIRCULATION: 200 GARRETT STREET, SUITE K
IMPERVIOUS AREAS: ROADS /CIRCULATION: EXISTING BUILDING: 20, 372 SF H A R LOTf E S1✓I L L E VA 22902
EXISTING ROADS /PARKING: 19, 937 SF
PROPOSED BUILDING: 8,785 SF EXISTING SIDEWALKS: 3, 397 SF �,
SIDEWALKS: 915 SF �
ROADS /PARKING 12,280 SF EXISTING BASKETBALL COURT- 5,012 SF 434.293.3719
(PERVIOUS PA VEMEN T)
VICINITY MAP
Sheet List Table - WPO PLAN -
Sheet Number
Sheet Title
1
COVER
2
EROSION & SEDIMENT CONTROL NARRATIVE, NOTES & DETAILS
3
PHASE I EROSION & SEDIMENT CONTROL PLAN
4
PHASE II EROSION & SEDIMENT CONTROL PLAN
5
STORMWATER MANAGEMENT PLAN
5
T�
TOTAL NUMBER OF SHEETS
LEGEND
= _ _ —
EXISTING CULVERT
CUL VERT
0
DROP INLET & STRUCTURE NO.
as
CURB
-- - - - - -- 200-- - - - - --
CURB & GUTTER
20o
PROPOSED PA VEMENT
240.55
EC -3A DITCH
6 .
DEPTH OF EC -3A DITCH
EC -2 DI TCN
6"
DEPTH OF EC -2 DITCH
°Mlle copy of tho a ,Xprovad PIPM is
rep, LrvQd for �I t fftc� t{ file s of
Albi;.c;.,0143 il'104 0 dO flOt
rE„ ,iota' a hi,," plan from the file,
EARTH DITCH
APPROVED
by the Albomade COU01y
Community Development Depad
Date 12 2 o 1 3
File W r() z-v & L,, —
APPROVALS DATE
DEPARTMENT OF COMMUNITY DEVELOPMENT
PLANNER /ZONING
ENGINEER
INSPECTIONS
ARB
DEPARTMENT OF FIRE RESCUE
ALBEMARLE COUNTY SERVICE AUTHORITY
VIRGINIA DEPARMENT OF TRANSPORTATION
HEALTH DEPARTMENT
P
SCOTT R. COLLINS�
Lic. No. 035791,x.
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DRI VEWA Y CUL VER T
BENCH MARK
_ _ _ _ _
CLEARING LIMITS
as
VDOT STANDARD STOP SIGN
-- - - - - -- 200-- - - - - --
EXISTING CONTOUR
20o
PROPOSED CONTOUR
240.55
PROPOSED SPOT ELEVATION
f
TBC DENOTES TOP /BACK OF CURB
T/B DENOTES TOP OF BOX
APPROVED
by the Albomade COU01y
Community Development Depad
Date 12 2 o 1 3
File W r() z-v & L,, —
APPROVALS DATE
DEPARTMENT OF COMMUNITY DEVELOPMENT
PLANNER /ZONING
ENGINEER
INSPECTIONS
ARB
DEPARTMENT OF FIRE RESCUE
ALBEMARLE COUNTY SERVICE AUTHORITY
VIRGINIA DEPARMENT OF TRANSPORTATION
HEALTH DEPARTMENT
P
SCOTT R. COLLINS�
Lic. No. 035791,x.
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LEGEND
EROSION & SEDIMENT CONTROL
EROSION CONTROL NOTES
DESCRIPTION OF EROSION & SEDIMENT EROSION CONTROL NOTES & NARRATIVE
ELEVATION IS 4.0• PLAN VIEW
MEASURES:
UNLESS
CONTROL MEASURES:
INGRESS AND EGRESS OPERATION
VIRGINIA EROSION &SEDIMENT CONTROL
CONJUNCT70N W177-1 A TEMPORARY DIVERSION' DIKE. 5
ES -1: 07HERMSE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND
12' MIN.
PURPOSE.'
EROSION CON TROL HANDBOOK SPEClFICAT/ON NUMBER
ABOVE GRADE AND 4'
SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAlNTA(kVED ACCORDING
OFF EDGE OF PAVEMENT.
SECTION A -A
*
STRUCTURAL EROSION AND SEDIMENT CON7TROL PRACTICES SHALL BE IN ACCORDANCE 6VlTH THE
TO MINIMUM STANDARDS AND SPECIFICA77ONS OF THE VIRGINIA EROSION AND
EROSION AND SEDIMENT CONTROL MEASURES
774E PURPOSE OF THIS LAND - DISTURBING ACTIVITY IS TO CREATE AN ADDITIONAL BUILDING AND PARKING AREA FOR THE
5 PAVED TEMP_ CONST
VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. STRUCTURAL PRACTCES USED IN THiS
SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULA770NS VR 625 -02 -00 EROSION
IT IS ANTICIPATED A CONSTRUCTION ENTRANCE, DIVERSIONS, SEDIMENT TRAPS AND SILT
EXISTING PEABODY SCHOOL. PARKING LOT, LOT GRADING, U77LI71ES AND STORMWATER MANAGEMENT ARE PROPOSED WITH
S78 STRAW BAIL BARRIER 3.04
9
SECTION CONSIST OF THE FOLLOWING•
AND SEDIMENT CONTROL REGULATIONS.
FENCES WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING WILL BE
THIS PLAN TO ACCOMMODATE THE DEVELOPMENT. THE TOTAL ACREAGE TO BE DISTURBED IS 2.28 ACRES AND MINOR
OPERA77ONAL AS LONG AS POSSIBLE THE DIVERSIONS, SILT FENCING & SEDIMENT TRAP SHALL ALSO REMAIN IN
TO PR07ECT THE OUTLET S7RUCTURE, AND TO MINIMIZE 7HE POTENTIAL FOR DOWNSTREAM EROS /ON t
ES -2: THE PLAN APPROVING A U 7NORlTY MUST BE NOTIFIED ONE WEEK PRIOR TO THE
CONS7RUC77ON OF 774E PARKING LOT AND THE CONS7RUC770N OF THE BUILDING & FUTURE P
CLEARING IS PROPOSED.
3.09
301 SAFETY FENCE.
PRE- CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF
USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE ACTIVITIES. TEMPORARY STOCKPILE
EXISTING SITE CONDITIONS:
DD TEMPORARY DIVERSION DIKE
A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE, TO
LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION.
AREAS WILL BE MAINTAINED FROM TOPSOIL 7HAT WILL BE STRIPPED FROM AREAS TO BE
THE EXISTING SITE IS CONTAINS THE FACILITIES FOR THE PEABODY SCHOOL AND GENERALLY SLOPES FROM EAST TOWARDS
>� TEMPORARY SEDIMENT TRAP 313
PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. APPLICABLE
ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED UNSAFE BY VIRTUE
ES- 3•ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR
AS 174E STEP W CLEARING.
GRADED AND STORED FOR LATER SPREADING. STOCKPILE LOCA77ONS SHALL BE ON S17E AND
SHALL BE STABILIZED WITH
WEST. THE SITE 1S GENERALLY WELL DRAINED AND EROSION AND SEDIMENT CONTROL MEASURES HAVE BEEN DESIGNED TO
ST �`��
OF POTENTIAL ACCESS BY 774E PUBLIC.
O
OF 7
ES -4: A COPY OF 774E APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE
A TEMPORARY VEGETA7VE COVER. PERMANENT SEEDING WILL BE
CONFORM TO 7HE EXIS77NG SITE SLOPE AND PR07ECT THE DOWNSTREAM AND ADJACENT PROPERTIES.
TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL
FABRIC OR GRANULAR UNDERLINI N G. TO PRO TE CT THE SOIL FROM THE EROSIVE FO RC ES OF
MAINTAINED ON 774E S17E AT ALL TIMES
PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE EXCAVATED AND WHERE
ADJACENT AREAS:
SB ® SEDIMENT BASIN J.
302 CONSTRUCTION ENTRANCE.,
_
E5 5.•PRIOR TO COMMENCING LAND DISTURBING AC77Vl77ES IN AREAS OTHER IRAN
CONSTRUCTION S G
17 AC77VI77E HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED
THE SITE IS BORDERED BY 774E EXISTING STONEY
T G T NEY RIDGE ROAD TO 174E EAST, 774E EXISTING SOUTHERN PARKWAY TO THE
INSTALL THE (CURB AND GUTTER AND PARK /LAG LOT ASSOCIATED WITH 774E PLANS.
A STABILIZED PAVED CONSTRUCTION ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF
INDICATED ON 7HESE PLANS (INCLUDING BUT NOT LIM17ED TO, OFF -SITE BORROW
FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE. SELECT70N
SOUTH, A COMMERCIAL DEVELOPMENT TO 7HE NOR77-1 AND THE FOXCROFT SUBDIVISION TO 7HE EAST. A STREAM EXISTS TO
O/P INLET PROTECTION 3.07
VEHICULAR INGRESS AND EGRESS ON A COINSTRUCT70N SiTE. TO REDUCE THE AMOUNT OF MUD
TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. CONSTRUCTION
OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION
PLAN
OF SEED MIXTURE WILL DEPEND ON THE 77ME OF YEAR APPLIED. TEMPORARY SEEDING WILL
THE EAST OF THE PROPOSED DEVELOPMENT AND IS SITUATED WEST OF THE FOXCROFT SUBDIVISION.
OFFS17E LAND DISTURBANCE.'
INSTALL ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON 7HE PHASE // EROSION CON7ROL PLAN.
ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE AMOUNT SEDIMENT
CONTROL TO 7HE OWNER FOR REVIEW AND APPROVAL BY THE PLAN
APPROVING AUTHORITY.
BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE THAN
ONCE ALL PHASES OF CONSTRUCTION ARE COMPLETE, THE S17E IS STABILIZED AND THE INSPECTOR HAS GIVEN
SF X X- SILT FENCE 3.05
TRANSPORTED ONTO PUBLIC ROADWAYS.
ES -6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADD17IONAL EROSION
SEVEN DAYS. THESE AREAS SHALL BE SEEDED W17H FAST GERMINATING VEGETATION
7HIS PROJECT PROPOSES NO OFFS17E DISTURBANCES. ANY OFFSITE PROPERTY USED FOR CUT DISPOSAL OR FILL
ACQUIS177ON MUST HAVE AN APPROVED EROSION AND SEDIMENT CONTROL PLAN.
GE VE COVE DISTURBED AREAS BY SEEDING WITH -
i !b r an consist N
CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTA77ON AS
IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELEC77ON OF SEED MIXTURE WILL DEPEND CRITICAL AREAS.
aCE � CONSTRUCTION ENTRANCE 302
��
3.05 SILT FENCE:
A TEMPORARY SEDIMENT BARRIER CONS(S7ANG OF A SYN7HE77C FILTER FABRIC S7RETCHED ACROSS
TO SUPPOR77NG POSTS AND ENTRENCHED, TO INTERCEPT AND DETAIN SMALL
DETERMINED BY 7HE PLAN APPROVING AUTHORITY.
ES-7.-ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES
ON 7HE TIME OF YEAR APPLIED.
NO CRI77CAL SLOPES EXIST WITHIN 7HE PROPOSED LIMITS' OF DISTURBANCE. EXIS77NG CRi77CAL SLOPES DO EXIST Wl7HIN
THE DEDICATED OPEN SPACE AREA AND WILL REMAIN UNDISTURBED. A STREAM EXISTS TO THE EAST OF THE PROPOSED
AND SEDIMENT CONTROL
AND ATTACHED
AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERATIONS iN ORDER TO
AT ALL TIMES DURING LAND DISTURBING AC77WTIES AND DURING SITE DEVELOPMENT
UN77L FINAL STABILIZA7ION iS ACHIEVED.
301 SAFETY FENCE - SAFETY FENCE WiLL BE INSTALLED AROUND PROPOSED SEDIMENT TRAPS DISTURBANCES AND SHALL REMAIN UNDISTURBED.
CD , CHECK DAM 3.20
PREVENT SEDIMENT FROM LEAVING THE SITE', AND TO DECREASE THE VELOCITY OF SHEET FLOWS AND
LOW MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS SHALL BE INSTALLED DOWN
ES -8: DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED
WATER FILTERING DEVICE.
AND P07EN77AL FIELD- FIT7ED AREAS
SOILS:
-TO-
OFF -SITE AREAS, AND TO PROVIDE PR07EC771ON TO BARE SOiLS EXPOSED DURING C0NS7RUCT7ON e
302 CONSTRUC77ON ENTRANCE - ONE CONSTRUC77ON ENTRANCE IS PROPOSED AND IT
c. ALL SILT FENCE BARRIERS MLL BE CHECKED REGULARLY FOR UNDERMINING OR ,
15. A
SLOPE OF AREAS WITH MINIMAL GRADES TO) FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS
ES -9: THE CON7RACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY
SHALL BE INSTALLED AT 7HE END OF 7HE PAVEMENT ON SOUTHERN PARKWAY WHERE THE
THIS SITE CONSISTS OF SEVERAL SOiL TYPES. SEE THIS SHEET AND PHASE I OF THE EROSION AND SEDIMENT CONTROL
INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN
AND AFTER EACH RUNOFF - PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS
0 R
PLAN FOR FURTHER DETAILS.
FD TEMPORARY FILL DIVERSION 310
ACCORDANCE K17H 7HE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH).
OR CLEANUP TO MAINTAIN 7HE EFFEC77VENESS OF THE EROSION CONTROL DEVICES
EXISTING EARTHEN GRADED ACCESS IS LOCATED ENTERING THE SITE THIS LOCATION WILL BE
SEQUENCE OF CONSTRUC170N:
DISPOS177ON OF TEMPORARY - MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FUR7NER EROSION AND
SHALL BE MADE IMMEDIATELY.
THE ONLY POINT OF INGRESS AND EGRESS TO THE SITE, UNLESS OTHERWSE AUTHORIZED BY
MAINTAINED. AREAS SHOULD BE FER77LIZED AND RESEEDED AS NEEDED. S
S DIVERSION 3.12
3.07 STORM DRAIN INLET PROTECTION. ,
A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP INLET OR
EROSION CONTROL NOTES
THE COUNTY INSPECTOR. CARE SHALL BE TAKEN TO PROTECT ALL EXIS77NG ROADS &
1. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE - CONSTRUCTION MEETING AS REQUIRED.
2 "x4" WOODEN FRAME DROP INLET
AND ALLOWS SELEC77ON OF 774E MOST APPROPRIATE PLANT MATER /ALS TO IMPROVE WILDLIFE 2
PARKING AREAS FROM TRANSFER OF SEDIMENT.
2. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONS7RUCTION PROCESS WITHOUT 774E APPROVAL
SEDIMENT FROM ENTERING STORM DRAINAGE SYSTEMS PRIOR TO
CURB INLET TO PREVENT E
PERMANENT STAB /L/ZA170N OF 774E DISTURBED AREA. INLET PR07FC77ON APPLIES WHERE STORM
General construction notes for Erosion and Sediment Control plans
3.05 SILT FENCE- SILT FENCE WILL BE PLACED ON THE DOWNSTREAM SiDE OF DISTURBANCE
FROM 7HE INSPECTOR ON THE PROJECT.
OPS �- PS PERMANENT SEEDING 332
DRAIN INLETS ARE TO BE MADE OPERA77ONAL BEFORE PERMANENT STABILIZA7ON OF THE
1. The plan approving authority must be notified one week prior to the pre- construction conference, one
WHERE NOTED ON THE PLANS.
3. CONTRACTOR SHALL INSTALL SEDIMENT TRAPS BEFORE ANY SITE DISTURBANCE SHALL TAKE PLACE. CONTRACTOR
CORRESPONDING DISTURBED DRAINAGE AREA.
week prior to the commencement of land disturbing activity, and one week prior to the final inspection.
307 STORM DRAIN INLET PROTEC7ON- iP WILL BE INSTALLED ON EACH PROPOSED INLET AND
SHALL INSTALL FENCING AROUND THE TRAPS & SHALL STAKE THE LIMITS OF DISTURBANCE ON -SITE: CONSTRUCTION
1.5' MAX. _
2. All erosion and sediment control measures will be constructed and maintained according to minimum
NEIGHBORING EXIS77NG INLETS AS SHOWN ON 774E PLANS
OUTSIDE OF THE LIMITS OF DISTURBANCE IS PROHIBITED,
TO TO TOPSO /LING 3.30
O
309 TEMPORARY DIVERSION:
A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED 774E TOP BASE OF A SLOPING
standards and specifications of the Virginia Erosion and Sediment Control Handbook and Virginia
3.09 TEMPORARY DIVERSION- DIVERSION WILL BE USED AROUND THE PERIMETER OF S17E
4. INSTALL PAVED CONS7RUC770N ENTRANCE W/TH WASH AREA AS SHOWN ON THE PLANS. 7HE CONS7RUC770N
OP DRAINAGE AREAS AWAY FROM
DIS AREA. TO DlI/ART STORM RUNOFF FROM E
Regulations VR 62 02 -oo Erosion and Sediment Control Regulations.
g 5 g
DISTURBANCE WHERE SHOWN ON 7HE PLANS TO DIRECT RUNOFF TO ON -SITE' SEDIMENT
ENTRANCE SHALL BE INSTALLED WHERE CONS7RUCT70N VEHICLE ROUTES INTERSECT PAVED PUBLIC ROADS,
CULVERT INLET PROTECT /ON J.
a
STABOPE
UNPR07FCTED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET. TO DIVERT
UNPROTECTED
3• All erosion and sediment control measures are to be placed prior to or as the first step in clearing.
CONTROL FACILITIES.
PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED
(VEHICULAR)
SURFACE. WHERE SEDIMENT IS MANSPORTE"D ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED
SEDIMENT-LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT- TRAPPING FACILITY SUCH AS A
4. A copy of the approved erosion and sediment control plan shall be maintained on the site at all times.
3.14 TEMPORARY SEDIMENT TRAP- TEMPORARY SEDIMENT TRAPS WILL BE INSTALLED AND
The available water capacit y
SEDIMENT TRAP OR SED IMENT BASIN. USE WHEREVER STORMWATER RUNOFF MUST BE TEMPORARILY
5. Prior to commencing land disturbing activities in areas other than indicated on these plans (including, but
MAINTAINED WHERE SHOWN ON T74E PLANS
THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR
DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON SITE' DURING
not limited to off -site borrow or waste areas) the contractor shall submit a supplementary erosion control
PP Y
SWEEPING AND 7RANSPORT/NG TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED
DC DC DUST CONTROL 3.39
CONS7RUC770N 7HESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 MONTHS OR LESS,
plan to the owner for review and approval by the plan approving authority.
3.18 OUTLET PR07EC770N- TO BE PROVIDED AT THE OU7TALL OF DRAINAGE PIPES WHERE
ONLY AFTER SEDIMENT /S REMOVED /N THIS MANNER.
WHICH CAN BE PROLONGED W1774 PROPER MAINTENANCE.
6. The contractor is responsible for installation of any additional erosion control measures necessary to
SHOWN ON PLANS.
5. INSTALL THE REMAINING IN177AL CONS7RUC77ON MEASURES AS SHOWN ON 7HE PHASE / EROSION CONTROL PLAN
RIGHT-OF-WAY DIVERSION:
erosion and sedimentation as determined by the approving
3.19 RIPRAP- RIPRAP SHALL BE INSTALLED AS OUTLET PROTECTION WHERE SHOWN ON THE
SHEET. THIS', INCLUDES THE INSTALLATION OF THE PER /METER DIVERS IONS AND SILT FENCE. ALSO INSTALL A
a - TEMPORARY SLOPE DRAiN 3.15
3.11 TEMPORARY
prevent plan
PLANS
TEMPORARY WATER METER TO SUPPLY WATER TO THE WASH RACK FROM 1HE EXISTING ONS17E WATER, AFTER
A RIDGE OF COMPACTED SOIL OR LOOSE ROCK OR GRAVEL CONSTRUCTED ACROSS DISTURBED
RIGHTS -OF -WAY AND SIMILAR SLOPING AREAS TO SHORTEN THE FLOW LENGTH WITHIN A SLOPING
authority.
7. All disturbed areas are to drain to approved sediment control measures at all times during land disturbing
3.31 TEMPORARY SEEDING - TEMPORARY SEEDING SHALL BE APPLIED WHERE SHOWN ON THE
CONTAC77NG ,ACSA. THE CONSTRUC77ON OF 7H /S LINE SHOULD OCCUR IMMEDIATELY AFTER THE CONSMUC77ON OF
HIGH T - OF- WAY, THEREBY REDUCING 7HE EROSION POTENTIAL BY D/VER77NG STORM RUNOFF TO A
activities and during site development until final stabilization is achieved.
PLANS
CONSTRUCTIOiN ENTRANCE AND SEDIMENT TRAP #1. MEASURES INTENDED TO 7RAP SEDIMENT SHALL BE CONSTRUCTED
AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND
SA SAFETY FENCE 3.01
STABILIZED OUTLET. GENERALLY, EARTHEN DIVERSIONS ARE APPLICABLE WHERE THERE WILL BE
8• During dewatering operations, water will be pumped into an approved filtering deviice.
332 PERMANENT SEEDING- PERMANENT SEEDING SHALL BE APPLIED WHERE SHOWN ON THE
DISTURBANCE TAKES PLACE.
LITTLE OR NO CONS7RUC770N TRAFF IC WITHIN 774E RIGHT -OF -WAY. GRAVEL STRUC7URES ARE MORE
APPLICABLE TO ROADS AND OTHER RIGHTS -OF -WAY WHICH ACCOMMODATE VEHICULAR TRAFFIC.
The contractor shall inspect all erosion control measures periodically and after each runoff producing
9• P P Y P 9
PLANS
6. IN ADD177ON TO ENSURING THAT THE PAVED CONSTRUC77ON ENTRANCE IS INSTALLED, INSTALL ANY REMAINING
��
(RWD) > , TEMPORARY RiGHT - OF- WAY 3.11
3.13 TEMPORARY SEDIMENT TRAP.
rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of the erosion control devices
be immediately.
3.36 SOiL STABILIZATON BLANKETS AND MATTING- B/M SHALL BE EMPLOYED WHEREVER
SHOWN ON 774E PLANS OR WHERE SLOPES EXCEED 3.• 1 SLOPE.
EROSION CONTROL ITEMS AS SHOWN ON THE PHASE ! EROSION CONTROL PLAN.
DI VERSION
shall made
Z ONCE ALL THE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE PHASE I EROSION CONTROL PLAN
A TEMPORARY PONDING AREA FORMED BY CONS7RUC77NG AN EARTHEN EMBANKMENT WI7H A STONE
1o. All fill material to be taken from an approved, designated borrow area.
3.39 DUST CONTROL- DUST CONTROL SHALL BE APPLIED 7HROUGHOUT 774E S 17E WHERE
AND 7HE INSPECTOR HAS APPROVED 7HE EROS /ON CONTROL MEASURES, THE CONTRACTOR CAN BEGIN GRADING
OUTLET. TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS LONG ENOUGH TO
11. All waste materials shall be taken to an approved waste area. Earth fill shall be inert materials only, free
SHOWN ON THE PLANS
OPERATIONS EFFORTS SHOULD BE MADE TO U77LIZE THE SEDIMENT TRAPS AS LONG AS POSSIBLE DURING THE
ALBEMARLE COUNTY
CONSTRUCTION ENTRANCE
LANCE SWALE .ECTS I .OW
TO SEDIMENT B.NSFN
70' MIN.
%3 sM -?A ASPHALT TOP COURSE
1 2% -... _7% A.d
DIVERSION DITCH- SIDE ELEVATION
70' MIN.
F ASPFALT PALED WASHRACK
L
2%
DIVERSION DrrCH POSNNE OPA04WE
MINIMUM WIDTH AT TRAPAPPING o VCE
l
of roots, stumps, wood, rubbish, and other debris. C
DESIGN WATER I
ELEVATION IS 4.0• PLAN VIEW
TOTAL CONTRIBUTING DRAINAGE AREA IS LESS THAN 3 ACRES, WHERE THE SEDIMENT TRAP WILL BE 1
MUST EXTEND FULL WIDTH OF
STORMWATER MANAGEMENT 8
INGRESS AND EGRESS OPERATION
SET 1 1/2" WATER
CONJUNCT70N W177-1 A TEMPORARY DIVERSION' DIKE. 5
HYDRANT WITH FROST .
12' MIN.
PROOF HYDRANT 3'
FINAL GRADE iS REACHED ON ANY PORT70N OF 7HE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED K177-IIN
ABOVE GRADE AND 4'
I 2x-
OFF EDGE OF PAVEMENT.
SECTION A -A
SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED)
NOTE. A MINIMUM WATER TRAP OF 1" IS REQUIRED
14. Borrow, fill or waste activity involving industrial -type power equipment shall be limited to the hours of F
WITH A MINIMUM WASH HOSE DIA. OF 1.5
5 PAVED TEMP_ CONST
EN M
g SCALE N.T.S.
QUALITY AND QUAN77TY TREATMENT FOR 7HE IMPERVIOUS AREAS ADDED. 7HE SITE HAS BEEN
SH.
SLI
BRING MATERIAL DOWN TO A LEVEL AREA BEFORE
TERMINATING THE INSTALLATION TURN THE END
UNDER 4 "AND STAPLE AT 12" INTERVALS.
ALLOW 7HE MAJORITY OF T74E SEDIMENT TO SETTLE OUT USE BELOW DISTURBED AREAS WHERE THE o
of roots, stumps, wood, rubbish, and other debris. C
CONSTRUCTION & GRADING ACTIVITIES.
TOTAL CONTRIBUTING DRAINAGE AREA IS LESS THAN 3 ACRES, WHERE THE SEDIMENT TRAP WILL BE 1
12. Borrow or waste areas are to be reclaimed within days of completion per Zoning (Ordinance section
STORMWATER MANAGEMENT 8
8. P
PERMANENT OR TEMPORARY SOIL STABILIZA7ON SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER
CONJUNCT70N W177-1 A TEMPORARY DIVERSION' DIKE. 5
5.1.28• A
ALL PROPOSED IMPERVIOUS AREAS ARE TREATED THROUGH ONS17E FACILl7TES, OR THROUGH F
FINAL GRADE iS REACHED ON ANY PORT70N OF 7HE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED K177-IIN
13. All inert materials shall be transported in compliance with section 13 -301 of the Code of Albemarle. T
THE PRO -RATA SHARE PROGRAM. THE PROPOSED DEVELOPMENT PROVIDES STORMWATER S
SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED)
3.18 OUTLET PROTECTION, • 1
14. Borrow, fill or waste activity involving industrial -type power equipment shall be limited to the hours of F
FOR LONGER THAN 30 DAYS PERMANENT STABILIZAT70N SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT
S7RUCTURALLY LiNED APRONS OR 07HER ACCEPTABLE ENERGY DISSIPA77NG DEVICES PLACED AT THE Q
7:ooam to g:oopm. D
QUALITY AND QUAN77TY TREATMENT FOR 7HE IMPERVIOUS AREAS ADDED. 7HE SITE HAS BEEN
DORMANT FOR MORE THAN ONE YEAR. CONTRACTOR SHALL KEEP THE CONSTRUCTION ENTRANCE w/ WASH RACK
OUTLETS OF PIPES OR PAVED CHANNEL SECTIONS. TO PREVENT SCOUR AT STORMWATER OUTLETS, 1
15. Borrow, fill or waste activity shall be conducted in a safe manner than maintains lateral support, or order A
ANALYZED AND BREAKS DOWN THE DEVELOPMENT INTO TWO MAJOR SECTIONS, THE O
OPERA77ONAL AS LONG AS POSSIBLE THE DIVERSIONS, SILT FENCING & SEDIMENT TRAP SHALL ALSO REMAIN IN
TO PR07ECT THE OUTLET S7RUCTURE, AND TO MINIMIZE 7HE POTENTIAL FOR DOWNSTREAM EROS /ON t
to minimize any hazard to persons, physical damage to adjacent land and improvements, and damage to C
CONS7RUC77ON OF 774E PARKING LOT AND THE CONS7RUC770N OF THE BUILDING & FUTURE P
PLACE AS LONG AS POSSIBLE AND SHALL ONLY BE REMOVED UPON THE COUNTY INSPECTOR's APPROVAL. ONLY
BY REDUCING THE VELOCITY AND ENERGY ED CONCENTRATED STORMWATER FLOWS. APPLICABLE TO a
an public street because o slides sinking, or collapse. H
HARD COURT. THE PROPOSED PARKING LOT iS 7REATED 774ROUGH 7HE USE OF PERMEABLE U
UPON APPROVAL FROM 774E COUNTY INSPECTOR SHALL ANY SEDIMENT TRAP BE REMOVED.
16. The developer shall reserve the right to install, maintain, remove or convert to permanent stormwater P
PAVERS AND 7HE PROPOSED BUILDING & FUTURE HARD COURT IS TREATED VIA A BIOFILTER 9
9. I
INSTALL THE IN177AL CONSTRUC77ON MEASURES AS SHOWN ON THE PHASE // EROSION CON7ROL PLAN SHEETS.
3.19 RIPRAP: m
management facilities where applicable all erosion control measures required by this plan regardless of the A
AND A FEE PAiD TO THE PRO -RATA SHARE PROGRAM. SEE STORMWATER MANAGEMENT PLAN I
INSTALL INLET PR07EC77ON AS SHOWN ON THE PLAN WI7H THE STORM SEWER CONS7RUCT70N. MEASURES IN7ENDED
A PERMANENT, EROSION- RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE WITH FILTER s
sale of any lot, unit, building or other portion of the property. F
FOR ADDITIONAL DETAILS. T
TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL
FABRIC OR GRANULAR UNDERLINI N G. TO PRO TE CT THE SOIL FROM THE EROSIVE FO RC ES OF
27. Temporary stabilization shall be temporary seeding and mulching. Seeding Is to be at Ibs /acre and in B
BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE.
CONCENTRATED RUNOFF, SLOW THE VELOCITY OF CONCENTRATED RUNOFF WHILE ENHANCING THE 7
the months of September to February to consist a 50/50 mix of Annual Ryegrass and Cereal Winter Rye, or M
MAINTENANCE.' 1
10. I
INSTALL THE (CURB AND GUTTER AND PARK /LAG LOT ASSOCIATED WITH 774E PLANS.
POTENTIAL FOR INFILTRATION, AND TO STABILIZE SLOPES WITH SEEPAGE PROBLEMS, AND /OR t
in r and April to consist of Annual Rye, or May through August to consist of German Millet. Straw
IN GENERAL, DURING CONSTRUC77ON THE RLD OR CONTRACTOR ON -SITE WILL CHECK ALL
11. I
INSTALL 774E BUILD /LAG & BUILDING PAD, AS WELL AS 774E SANITARY SEWER LATERAL CONNECTION.
WATER TURBULENCE AND VELOCITY, EXPECTED VEGETATIVE COVER, ETC., ARE SUCH THAT THE SOIL P
mulch is to be applied at 8olbs /loosf. Alternatives are subject to approved b the Count erosion control I
EROS /ON AND SEDIMENT CONTROL MEASURES DAILY AND AFTER EACH SIGNIFICANT RAINFALL. 1
12. I
INSTALL ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON 7HE PHASE // EROSION CON7ROL PLAN.
MAY ERODE UNDER THE DESIGN FLOW CONDIVIONS. i
inspector. M
MONITORING REPORTS WiLL BE REQUIRED FROM THE RLD IF NEEDED. SPECIFIC ATTENTION W(LL13. O
ONCE ALL PHASES OF CONSTRUCTION ARE COMPLETE, THE S17E IS STABILIZED AND THE INSPECTOR HAS GIVEN
3.31 TEMPORARY SEEDING. l
limestone shall be applied at golbs /l000sf, incorporated into the top 4 -6 inches of soil. (Fertilizer shall be a
a. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE 1
APPROVAL, THE CONTRACTOR CAN REMOVE THE EROSION CONTROL MEASURES NO ITEM SHALL BE REMOVED UNLESS
GE VE COVE DISTURBED AREAS BY SEEDING WITH -
i !b r an consist N
WI
774 774E V< l
RG NlA EROSIO & S O H DBOOK.
174E UPSIREAMf AREAS ARE STABILIZED AND 774E INSPECTOR GIVES PERMISSION. 1. G
PLANTS. TO REDUCE OS /ON AND SEDIMENTA77ON BY
18olbs acre and consist of %Kentuck 1 or Tall Fescue and o- % Perennial R e rass or Kentucky b
b. ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SED /MENT BUILDUP THAT WILL 1
14. M
AND SEDIMENT CONTROL
NOT Y
Bluegrass. Straw mulch is to be applied at 8olbs /loosf. Alternatives are subject to approved by the County B
PREVENT PROPER DRAINAGE. iF THE GRAVEL IS CLOGGED BY SEDIMENT, 774E GRAVEL WILL H
HANDBOOK, REMOVING ONLY WHEN APPROVED BY 774E LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE WITH THE
MORE THAN 30 DAYS. TO REDUCE DAMAGE .FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR B
BE REMOVED AND CLEANED, OR IT WILL BE REPLACED. V
VIRGINIA EROSION AND SEDIMENT CON7ROL HANDBOOK.
OFF -SITE AREAS, AND TO PROVIDE PR07EC771ON TO BARE SOiLS EXPOSED DURING C0NS7RUCT7ON e
erosion control inspector. c
c. ALL SILT FENCE BARRIERS MLL BE CHECKED REGULARLY FOR UNDERMINING OR ,
15. A
,,
O REMOVED 17NiN 30 DAYS AFTER FINAL Sl
UNTIL PERMANENT VEGETA170N OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. 1
1g. Maintenance: All measures are to be inspected weekly and after each rainfall. Any damage or clogging D
DETERIORA770N OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE 1
0 R
REMOVED WHEN THE LEVEL OF SEDIMENT DEPOS177ON REACHED HALF WAY TO THE TOP OF S
STABILIZA7ON OR AFTER 7HE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY
THE PERMANENT STABILIZATION.- PER N v
w c
THE BARRIER. D
DISPOS177ON OF TEMPORARY - MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FUR7NER EROSION AND
TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS TO PERMANENTLY o
of grass. Silt fence and diversion dykes which are collecting sediment to half their height must be cleaned M
MAINTAINED. AREAS SHOULD BE FER77LIZED AND RESEEDED AS NEEDED. S
SED /MEN TA 7701V.
STABILIZE DISTURBED AREAS W A MANNER THAT IS ECONOMICAL, ADAPTABLE TO SITE CONDITIONS, a
and repaired immediately. I
IN CASE OF EMERGENCY, THE PRIMARY CONTACT FOR THE PROJECT WILL BE THE RLD OR 2
2 "x4" WOODEN FRAME DROP INLET
AND ALLOWS SELEC77ON OF 774E MOST APPROPRIATE PLANT MATER /ALS TO IMPROVE WILDLIFE 2
2o. All temporary erosion and sediment control measures are to be removed within 3o days of final site C
CONTRACTOR ON -SITE. THE CONTRACTOR WiLL BE DETERMINED AT THE 77ME 7HE C0N77?ACT W
WITH GRATE
HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCT /ON ACTIVITIES, ALL s
stabilization, when measures are no longer needed, subject to approval by the County erosion control I
IS AWARDED. UPON COMPLETION OF THE PROJECT, 7HE OWNER WiLL BE RESPONSIBLE FOR _
AREAS WILL RECEIVE A PERMANENT VEGETA7VE COVER. i
inspector. S
SITE MAINTENANCE.
FRAME
1.5' MAX. _
336 SOIL STABILlZA7TON BLANKETS & MATTINIG: P
21. This plan shall be void if the owner does not obtain a permit within 1 year of the date of approval. (Water 1
SOIL DESCRIPTION �
_ o
THE INSTALLATION OF A PROTECTIVE COVERING (BLANKET) OR A SOIL STABILIZATION MAT ON A 2
section 17- 204G.) S
� �
PREPARED PLAN77NG AREA OF A STEEP SLOPE, CHANNEL OR SHORELINE. TO AID W CON7ROLLING 2
21C - Culpeper fine sandy loam- 7% to 159' slopes. This soil is well drained & typically has
EROSION ON CRI77CAL AREAS BY PROVIDING A MICROCUMATE WHICH PR07ECTS YOUNG VEGETATION l
land disturbing activity commenced. (Water Protection Ordinance section 17- 2o7B) a
a very low to high Ksat value with a typical depth to water table more than 80 inches.
AND PROMOTES I7S ESTABLISHMENT APPLIES ON SHORT S7EEP SLOPES WHERE EROSION HAZARD T
The available water capacit y
IS HIGH AND PLANTING IS LiKELY TO BE TOO SLOW IN PROVIDING ADEQUATE PROTEC77VE COVER. 0 -8 inches thick without a risk of frequent ponding and flooding. _--� 3' MIN. -----7 �--�
Z39 DUST CONTROL:
REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING DEMOL177ON AND
CONSTRUCTION ACTIVITIES. TO PREVENT SURFACE AND AiR MOVEMENT OF DUST FROM EXPOSED
SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT
HEALTH HAZARDS, 7RAFFlC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. DUST CONTROL
MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF DUST DURING
CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH THE VESCH.
ON SHALLOW SLOPES, STRIPS
NET771PG'FR0TECTIVE COVERINGS
MAYBE APPLIED ACROSS BERM
THE SLOPE. -
4 ;
12"
. .
COMPACTED SOIL. -
Z"
9
WHERE THERE IS A BERM AT ` THE TOP OF THE SLOPE, I -
BRING THE MATERIAL OVER THE BERM AND ANCHOR IT -
BEHIND THE BERM. _ I - -1 I
_1 -1I,I 11 -I I -1
11 .. 1 I I I T
IN DITCHES, APPL Y PROTECTIVE COVERING
PARALLEL TO THE DIRECTION OF FLOW.
USE CHECK SLOTS AS REQUIRED. AVOID
JOINING MATERIAL IN THE CENTER OF
THE DITCH IFATALL POSSIBLE.
ON STEEP SLOPES, APPLY
PROTECTIVE COVERING PARALLEL
TO THE DIRECTION OF FL OW
AND ANCHOR SECURELY.
13 /M SOIL STABILIZA TION BLANKET NOTE
TREA TMEN T 1 SOIL STABILIZA TION MATTING MATERIAL SHALL BE INSTALLED AS
NO SCALE REQUESTED BY THEALBEMARLE COUNTYEROSION CONTROL INSPECTOR
TOTALLBS
GENERAL SLOPE (3:1 OR LESS) PER ACRE
KENTUCKY 31 FESCUE 128 LBS,
RED TOP GRASS 2 LBS
TABLE 3J9.A
ADHESIVES USED FOR DUST CONTROL
Water Applicatinrn
Dilutioct Type of Rate
Adhesive, (Adhesive: Water) &Azle, GidloolAcre,
Anionic
Asphalt Emulsion 7:1, Coarse Spray 1,20UP
Latex Emulsion 123:1 Fine Spray 235
Resin in Water 4:1 Fine Spray 1 3001 1.
Acrylic Emulsion
(Non-Traffic) 7:1 Coarse Spray 4501 '
Acrylic Emulsion
(Traffic) 3,5:1 Coarse Spray 350
Source: Va: iDSW('
FIJ.TER FABRIC SEASONAL NURSE CROP 20 LBS.
ENTRENCHED e"
SEASONAL NURSE CROP 150 LBS
3' IiIPTI![IIM
- I �I I r11 f FEBRUARY 16 THROUGH APRIL ANNUAL RYE
-- I i Iii - III -1 I I MAY 1 THROUGH AUGUST 15 FOXTAIL MILLET
IT�iI- lif -i�T ul=1�r -i��
_ - I I�-� I I� I I -III 1I i_I I I- 1 IT-I AUGUST 16 THROUGH OCTOBER ANNUAL RYE
- -I 11 =11 -I I_ 11_ -� - I 1 I� 1 1=111 =1 I 1 =I I Ill I I F=1 i-1 f I NOVEMBER THROUGH FEBRUARY 15 WINTER RYE
i =1Tl= r f�� - ti , �Ti ill =rte
1=I�111 -`= i NOTES:
- I I i r_- T ._ -
=I1 - - "' I 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL
TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32.
s' 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION
OF SEED APPLICATION, IN ACCORDANCE W/ VESCH STD 3.35.
PERMANENT SEEDING SCHEDULE
TEMPORARY DIVERSION NO SCALE
(STD. & SPEC. 3.32 OF VIRGINIA EROSION & P S
SEDIMENT CONTROL HANDBOOK, 3RD ED.)
PLANTING DATES SPECIES RATE
50150 MIX OF (LBSIACRE)
ANNUAL RYEGRASS
SEPT 1 -FEB 15 (LOLIUM MULTI- FLORUMI) 50 -100
&
CEREAL(WINTER)RYE
(SECALE CEREALE)
FEB 16 -APR 20 ANNUAL RYEGRASS 60 -100
(LOLIUM MULTI- FLORUM)
GERMAN MILLET
MAY 1 -AUG 31 (SETARIA ITALICA) 50
SEEDINGS MADE IN FALL FOR WINTER COVER AND
DURING HOT AND DRY SUMMER MONTHS SHALL BE
MULCHED IMMEDIATELY UPON COMPLETION OF SEED
APPLICATION WITH TACKIFIED STRAW, IN ACCORDANCE
WITH VA E &S STD 3.35.
TEMPORARY SEEDING SCHEDULE
NO SCALE
(STD. & SPEC. 3.31 OF VIRGINIA EROSION & TS
SEDIMENT CONTROL HANDBOOK, 3RD ED.)
39D - Hazel loam- 159 to 257. slopes. This soil is excessively drained & typically has a
moderately high to high Ksat value with a depth to water table more than 80 inches. The GATHER
available water capacity for this soil is typically low. The surface layer is generally 0 -10 ------------., EXCESS
inches thick without a risk of frequent flooding and ponding. AT CORNERS
77 - Riverview- Chewacla Complex- O% to 2% slopes. This soil is well drained & •typically �'� ��
has a moderately high to high Ksot value with a typical depth to water table between 36 to
60 inches. The available water capacity for this soil is typically high. The surface layer is
generally 0 -12 inches thick without a risk of frequent ponding and an occasional risk of PERSPECTIVE VIEWS
frequent flooding. STAKE �--
Reference. web soil survey online database, found at � - '' [*=
h t tp: / /websoil survey. Nres. Usda. Go v /applwebsoitsurvey. Aspx l
1. SET POSTS AND EXCA VA TE A 4 "X4"
TRENCH UPSLOPE ALONG THE LINE
OF POSTS.
VIJ [ % %- �
l11\ � f
/ I
G�_-�
FLOW
1 =1 I i
I I, , „III-
2. STAPLE WIRE FENCING TO THE POSTS.
'rl - ..11114�►1,4_1111
�4 AF11J1
•�?��I +?
1.
". . . -1
. . .�-
..
ELEVATION OF STAKE AND
FABRIC ORIENTA TION
SILT FENCE
G DROP INLET PROTECTION 3.07 -1
NO SCALE
3. ATTACH THE FILTER FABRIC TO
THE WIRE FENCE AND EXTEND
IT INTO THE TRENCH.
-.:.V,;,, .,,--,',-"�-�e, , .
, " * " .
, '�.,. , 't '�, , �
� N� ,
FA I
rI
h/
4W, I 1 -1 I l- ,
SIL T FENCE
sF
(WITH WIRE SUPPOR T)TH WIRE SUPPORT) ED
NO SCALE
4. BACKFILL AND COMPACT THE
EXCA VA TED SOIL.
11_ __f_
/ _
FLOW G
EXTENSION OF FABRIC AND WIRE INTO THE TRENCH.
///
fy 7,
�,
SCOTT R. COLLINS' ?,
Lic. No. 035791,E
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FIJ.TER FABRIC SEASONAL NURSE CROP 20 LBS.
ENTRENCHED e"
SEASONAL NURSE CROP 150 LBS
3' IiIPTI![IIM
- I �I I r11 f FEBRUARY 16 THROUGH APRIL ANNUAL RYE
-- I i Iii - III -1 I I MAY 1 THROUGH AUGUST 15 FOXTAIL MILLET
IT�iI- lif -i�T ul=1�r -i��
_ - I I�-� I I� I I -III 1I i_I I I- 1 IT-I AUGUST 16 THROUGH OCTOBER ANNUAL RYE
- -I 11 =11 -I I_ 11_ -� - I 1 I� 1 1=111 =1 I 1 =I I Ill I I F=1 i-1 f I NOVEMBER THROUGH FEBRUARY 15 WINTER RYE
i =1Tl= r f�� - ti , �Ti ill =rte
1=I�111 -`= i NOTES:
- I I i r_- T ._ -
=I1 - - "' I 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL
TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32.
s' 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION
OF SEED APPLICATION, IN ACCORDANCE W/ VESCH STD 3.35.
PERMANENT SEEDING SCHEDULE
TEMPORARY DIVERSION NO SCALE
(STD. & SPEC. 3.32 OF VIRGINIA EROSION & P S
SEDIMENT CONTROL HANDBOOK, 3RD ED.)
PLANTING DATES SPECIES RATE
50150 MIX OF (LBSIACRE)
ANNUAL RYEGRASS
SEPT 1 -FEB 15 (LOLIUM MULTI- FLORUMI) 50 -100
&
CEREAL(WINTER)RYE
(SECALE CEREALE)
FEB 16 -APR 20 ANNUAL RYEGRASS 60 -100
(LOLIUM MULTI- FLORUM)
GERMAN MILLET
MAY 1 -AUG 31 (SETARIA ITALICA) 50
SEEDINGS MADE IN FALL FOR WINTER COVER AND
DURING HOT AND DRY SUMMER MONTHS SHALL BE
MULCHED IMMEDIATELY UPON COMPLETION OF SEED
APPLICATION WITH TACKIFIED STRAW, IN ACCORDANCE
WITH VA E &S STD 3.35.
TEMPORARY SEEDING SCHEDULE
NO SCALE
(STD. & SPEC. 3.31 OF VIRGINIA EROSION & TS
SEDIMENT CONTROL HANDBOOK, 3RD ED.)
39D - Hazel loam- 159 to 257. slopes. This soil is excessively drained & typically has a
moderately high to high Ksat value with a depth to water table more than 80 inches. The GATHER
available water capacity for this soil is typically low. The surface layer is generally 0 -10 ------------., EXCESS
inches thick without a risk of frequent flooding and ponding. AT CORNERS
77 - Riverview- Chewacla Complex- O% to 2% slopes. This soil is well drained & •typically �'� ��
has a moderately high to high Ksot value with a typical depth to water table between 36 to
60 inches. The available water capacity for this soil is typically high. The surface layer is
generally 0 -12 inches thick without a risk of frequent ponding and an occasional risk of PERSPECTIVE VIEWS
frequent flooding. STAKE �--
Reference. web soil survey online database, found at � - '' [*=
h t tp: / /websoil survey. Nres. Usda. Go v /applwebsoitsurvey. Aspx l
1. SET POSTS AND EXCA VA TE A 4 "X4"
TRENCH UPSLOPE ALONG THE LINE
OF POSTS.
VIJ [ % %- �
l11\ � f
/ I
G�_-�
FLOW
1 =1 I i
I I, , „III-
2. STAPLE WIRE FENCING TO THE POSTS.
'rl - ..11114�►1,4_1111
�4 AF11J1
•�?��I +?
1.
". . . -1
. . .�-
..
ELEVATION OF STAKE AND
FABRIC ORIENTA TION
SILT FENCE
G DROP INLET PROTECTION 3.07 -1
NO SCALE
3. ATTACH THE FILTER FABRIC TO
THE WIRE FENCE AND EXTEND
IT INTO THE TRENCH.
-.:.V,;,, .,,--,',-"�-�e, , .
, " * " .
, '�.,. , 't '�, , �
� N� ,
FA I
rI
h/
4W, I 1 -1 I l- ,
SIL T FENCE
sF
(WITH WIRE SUPPOR T)TH WIRE SUPPORT) ED
NO SCALE
4. BACKFILL AND COMPACT THE
EXCA VA TED SOIL.
11_ __f_
/ _
FLOW G
EXTENSION OF FABRIC AND WIRE INTO THE TRENCH.
///
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SCOTT R. COLLINS' ?,
Lic. No. 035791,E
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/THE PEABODY SCHOO !UING RIPRAP DITCH
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1232 STONEY RIDGE ROAD
CHARLO 11 VILLE VA22902__
D.". 99/PG. 258
—1).B.1342/PG.238
. . . . . . . . . . . . . . . . . . . . . . . . ...
—` r ..J :.� �'..., GTOP OF DAN
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LINE WIDE
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OTE ORANGE SAFETY FE CE To
RXIS IN TRE LINE SF ASS SEDIrViENT BA 1 2.9
ROCK WEIR
N OMP S NS
Z W] IR AND TRAPS AT ALL TIMES FOR
— — IRE_.. _. — - -- - - ::�/' — - SAFETY. IffSTALUSkGN5_ARQLJND'
-B_ACKING BASINS AND TRAPS THAT READ
"DANGER, QUICK SAND, DO NOT
77 ENTER" (TYP.)
CONTRACT-011-SHALL INSTALL
SECONDARY CONSTRUCTION E!�TRA �CE
—AT—EXISTING ACCESS TO S E FOR HEAVY
EQUIPMENT & DELIVER-AJBTLES, SUCH AS
STONE, PAVERS; DIRT & STEEL, To
REDW��ISK OF DAMAGING EXISTING,""'
PARKING LOT,
SOUTHERN PARKWAY
(90' PUBLIC R/W)
TMP 09000-00-00-000A4
ACREAGE: 7.01 A1C.
MILL CREEK PUD HOME OWNERS
D.B. 1267, PG. 089
ZONED:PUD
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4�4 —
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—LIMITS 0
DISTURBANCE
2.28ac. (TY�,<-'
Al A A
TMP 09000-03-00-000AO
ACREAGE: 1.97 AC.
VILLAGE HOMES 11 AT M16", CREEK OWNER ASSOCIATION INC.
D.B. 2989, PG. 646
ZONED:PUD
Sediment Trap design #1
drainage area (acres) (<3)
32.2
0.48
trap volurres:
wet storage provided at this elevation (cy)
32.2
slope of wet storage sides
elevation (ft)
area (sf)
volume(cf)
volurne(cy)
440
216
0
0.0
441
454
328
12.1
442
717
908
316
443
1006
1,766
65.4
444
1319
2,925
1083
wet storage:
wet storage required (I (67" DA)
32.2
bottom of stone weir (ft)
441.95
wet storage provided at this elevation (cy)
32.2
slope of wet storage sides
2:1.
dry storage:
elevation (ft) area (sf) volume(cf)
dry storage required (cy) (67*DA)
32.2
crest of stone weir
443.0
dry storage provided at this elevation (cy)
33.2
slope of dry storage sides
2:1
Sediment Trap design #2
I'l IARM.0
drainage area (acres) (<3)
11,04,
OA0
trap volumes:
Ci
elevation (ft) area (sf) volume(cf)
volume(cy)
441 69
0
0.0
442 189
124
4.6
443 447
433
16.0
444 732
11,1017
37.7
wet storage:
wet storage required (cy) (67*DA)
bottom of stone weir (ft)
wet storage . provided at this elevation (cy)
slope of vvet storage sides
dry storage:
dry storage required (cy) (67*DA)
crest of stone weir
dry storage provided at this elevation (cy)
slope of dry storage sides
R
weir length (ft) (6ADA)
bottom of trap elevation (ft)
bottom trap dimensions:
top of dam elevation (ft)
top width of dam (ft)
top trap dimensions
w w"l;W1111
ww&-
2.9
440
541W
444
6#
01)`201
WET STORAGE V MAX,
(EXCAVATED)
FILTER CLOTH ONGINAL
GIRDUNG
ELEV,
*SEE PLATE 1113-1 COARSE AV.K(;ATE- CLASS I WOP
6.7
I'l IARM.0
442.25
11,04,
CREST OF STONE WEIR
7.5
Ci
2:1
CLEV.
weir length (ft) (64A)
0.6
DRY STORAGE
441
VmMix
bottom trap dimensions:
WET-STORAGE
443.0
top of dam elevation (ft)
444
4- TANS.
0ciii
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V:::
top Width of dam (ft)
3'
2:1
RATER CLOTH
68'A11
GRaJNG
ELLM
4SEE KATE
COME A9Mi
CLM I Rf"
weir length (ft) (6ADA)
bottom of trap elevation (ft)
bottom trap dimensions:
top of dam elevation (ft)
top width of dam (ft)
top trap dimensions
w w"l;W1111
ww&-
2.9
440
541W
444
6#
01)`201
WET STORAGE V MAX,
(EXCAVATED)
FILTER CLOTH ONGINAL
GIRDUNG
ELEV,
*SEE PLATE 1113-1 COARSE AV.K(;ATE- CLASS I WOP
6.7
442.25
7.5
2:1
weir length (ft) (64A)
0.6
bottom of trap elevation (ft)
441
67
bottom trap dimensions:
60'x3'
443.0
top of dam elevation (ft)
444
8.5
top Width of dam (ft)
3'
2:1
top trap: dimensions
68'A11
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BACKING
CONTRAC�HAL INSTALL
SECONDARY CONSTRUCTION ENTRANCE
XT EXISTING ACCESS TO SITE FOR HEAVY
' EQUIPMENT &DELIVERA'BLES, SUCH AS
STONE, PAVERSt FCL DIRT & STEEL, TO
REDUCISK OF DAMAGING EXISTING/
PARKING LOT.
SOUTHERN PARKWAY
(90' PUBLIC R!W)
TMP 09000- 00- 00 -000A4
ACREAGE: 7.01 AC.
MILL CREEK PUD HOME OWNERS
D.B. 1267, PG. 089
ZONED: PUD
— 4 .. ..1 �. ~... 1/ ... 1�/ / BLOCK WALL �,nw/
CONTRACTOR SHALL INSTALL' / b
PRIMARY CONSTRUCTION ENTRANCE j w
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2.28a . (TYP.)
TMP 09000-03- 00 -000AO
ACREAGE: 1.97 AC.
VILLAGE HOMES II AT MILL CREEK OWNER ASSOCIATION INC.
D.B. 2989, PG. 646
ZONED: PUD
Pz
SCOTT R. COLLINS'Z
Lic. No. 035791,E
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BIORETENTION
I /
BASIN DETAIL
SCALE: 1 " =20'
I I 11 I i J V( RI ABLE IYVIDTH x
1 I 1 I I SWM ] AS 1MENjT
1 1 1 ] I I I (2) IY
I! V I I I J. I
I jl I I ' � 0 +1 �� �
I I I I J I I I I � G-
I
I 1 ( 106" SIOC P SCH;ED LE' 4o I
PVC
AAAIP &,OR E EI _ENT
I I I I I �ARRELOR S ILITY.(
] I I I J ((22LF� i.o %; V•i4N�437.5/ 1 I k x
+ J I & 'OUT' 4 .2 +8) ' { I
DF FOREBA Y I WE R GRES�A T ELEV. 442 5'
S"LL7 BE MAD Of CL. - R/PRA J { I
G OTFXTIL rF FILTER f ABRIC UNDERLA � • N%. 2'
WIDE rOREBA Y f TOP JOF DA' ELEV. = 43
�FQREBAY``B�TTOM DIM 21 ,YIO (2) ! f
1 04 I I I{
II
1 CCA
k
o-
` " "`/ PRO USED T O' EARTHEN ACCfFSS ROAD.
-�
SEE r THIS SHEET FOR FULL ALIG�JMENT
3 CS ENCOMPASSED IN VAR.�WIDTH SWM
4�() EASEMENT. SLOPES NOTI TO EXCEED 10%
I I
p,k r 6" PERF, OR,4TED 5,C77,&ZfUZE 40
PVC PIP4 OR EQUIVALENT AAA2. /
x t O90 SLbA (MIN.) kiR iSx EW-TIRC_
k x r T WIDTH 9 ,cO ' O.C. TO OUTFA.LL
I PIPE (TYP.)
N„YLOPLAST24 "g AN ORD Gg6TEIN ETC R -_.
EOUIVALEN77, wi2 STAN PIPESHALLSERVEASRISER
S), UCTURE. RISER ELEV. = 443 �.(1 ° MAXIMUM POND/NG)_
00 --- - - - - -- - - - - - -- - - --
1 (3) LB
BIOFILTER FLOOR
x �(3)IIV ELEV.= 442.0'
{ 4" SOLID PVC CLEAN -OUT ST� D PIPE w/' WATERTIGHT,
THREADED PVC CAP. CLEAN -OUTS TO BE PROVIDED AT
THE END OF THE UNDERDRAIN PIPING, AT .JUNCTIONS AND
ALONG THE UNDERDRAIN SYSTEM EVERY 50' O.C. MIN.
,0 (TYP.)
RASS GROUND COER FOR SLOPES GREATER
THAN 3:1 IN SWM FACILITY. GRASS GROUND
[COVER LIMITED TO CUT SLOPES & SHALL NOT
EXTEND '( TO THE SWM FACIL17Y.
I
I
� I
(1) CCA - - -T j-----------------------
BIORETENTION BASIN SECTION SHOWING CLEAN-O UTS
NITS
General Bioretention Construction Notes:
1. Bioretention basins shall not be installed until the site is determined to be adequately
stabilized by the erosion control and water resources inspectors.
2. The water resources inspector must inspect the under -drain installation and approve the soil
mix prior to backfilling the bioretention basin and approve the completed installation.
Contractor shall contact the water resources inspector 24 hours prior to backfilling the bioretention
basin and request an inspection and approval of the under -drain installation and the soil mix.
]PLANT SCHEDULE
SYM
BOTANICAL
COMMON NAME
SIZE
CANOPY TOTAL SITE
(so QUANTITY COVERAGE (sf)
BIORETENTION BASIN PLANTS (Included in Landscaping Plan shown in Final Site PlanSO
CCA
CARPARPINUSCAROLINIANA
VARIES PER PLAN
6' -8'
129
2
258
IG
ILEXGLABRA'SHAMROCK'
INKBERRY
24 -30"
WATERTIGHT, THREADED
27
297
IV
ILEX VERTICILLATA'RED SPRITE'
WINTERBERRY
PVC CAP
4" SOLID I
IVC CLEAN -OUT PIPE.
0
LB
LINDERABENZOIN
SPICEBUSH
24 -30"
AFTER TREATMENT, THIS DRAINAGE OUTFALLS INTO THE EXISTING ROADSIDE DITCH ASSOCIATED WITH
-
PROVIDED
_ _. ._.
_. _ _ _.
6
_
_
-
_ _ _.
AT THE END OF THE
UNDERDRAIN
555
-
(0f) ,
-
a drain ou"Ot
PIPING AND
0
_ -
-
Rank tae _, i drain
BASIN FLOOR AREA SHALL BE SIZED TO BE 5% OF THE PROPOSED BUILDING & FUTURE HARD COURT's
2.5' 2 _ ... -
L- -_-
691
-
..
- SYSTEM EVERY 50' O.C.
1 STATE-APPROVED-7
1,525
CHIMNEY DRAIN TOE DRAIN
_
_ _ W.
_
c; \3�Q1�-ta
R STRUC�URE.
MAXIMU
y
MIX . 7
Ln
-
- -.
6 ", SCHEDULE 40, PERFORATED
OOq
_.
_
440
_
.
PVC UNDERDRAIN, SPAC ED PIER
N
06" SOLID
SCHEDULE 4a
I PVC PIP
9
27
0. 78
STONE
I
PLAN, SLOPE TO DRAIN
1.5'
�O
-�
7f l7 _1( Y�?(
NO. 78 STONE COMPACTED
Ti �.
w.
NO. 57 STONE COMPACTED
NO. 5
NO.
�
STONE
78 STONE
�
NO. 78 STONE COMPACTED
NOTE: SEE PLAN DETAIL
ON THIS SHEET FOR APPROXIMATE PLACEMENT OF UNDERDRAINS.
BIORETENTION BASIN SECTION SHOWING CLEAN-O UTS
NITS
General Bioretention Construction Notes:
1. Bioretention basins shall not be installed until the site is determined to be adequately
stabilized by the erosion control and water resources inspectors.
2. The water resources inspector must inspect the under -drain installation and approve the soil
mix prior to backfilling the bioretention basin and approve the completed installation.
Contractor shall contact the water resources inspector 24 hours prior to backfilling the bioretention
basin and request an inspection and approval of the under -drain installation and the soil mix.
]PLANT SCHEDULE
SYM
BOTANICAL
COMMON NAME
SIZE
CANOPY TOTAL SITE
(so QUANTITY COVERAGE (sf)
BIORETENTION BASIN PLANTS (Included in Landscaping Plan shown in Final Site PlanSO
CCA
CARPARPINUSCAROLINIANA
IRONWOOD
6' -8'
129
2
258
IG
ILEXGLABRA'SHAMROCK'
INKBERRY
24 -30"
11
27
297
IV
ILEX VERTICILLATA'RED SPRITE'
WINTERBERRY
24 -30"
Minimum Bioretention Floor Area at 5 %=
5
0
LB
LINDERABENZOIN
SPICEBUSH
24 -30"
AFTER TREATMENT, THIS DRAINAGE OUTFALLS INTO THE EXISTING ROADSIDE DITCH ASSOCIATED WITH
3
0
TOTAL
CANOPY
Elevation
Elevation Area of Forebay Volume
Bioretention Basin
Chiir" drain
PERMEABLE PAVER DESIGN.
555
FIGURE 3.01 - .la
Homo, etteotrs Embankntettts try /S'eel ttge Controls
PROPOSED DEVELOPMENT, AND A CONTRIBUTION SHALL BE MADE TO THE PRO -RATA SHARE PROGRAM
omogeneous fill
SWM
SWM NARRATIVE:
PROPOSED DEVELOPMENT PROVIDES STORMWATER QUALITY AND QUANTITY TREATMENT FOR THE
NOTES:
h 1. ROOF DRAIN SHALL HAVE DISCHARGE APRONS AT OUTLET TO PROVIDE
BASIN SHALL DRAIN TO THE ADJACENT FLOODPLAIN AREA & STREAM, CONSISTENT WITH THE CURRENT
j PROPER SCOUR PROTECTION PRIOR TO RELEASING RUNOFF INTO THE FOREBAY.
IMPERVIOUS AREAS ADDED. THE SITE HAS BEEN ANALYZED AND BREAKS DOWN THE DEVELOPMENT
4 i
w � �m n
ut off trench_q below suitable
ED
RIPRAP w/ GEOTEXTILE FILTER FABRIC UNDERLAYMENT 2' WIDE FOREBAY TOP
material �
Minimum Forebay Volume= 0.25 inches per impervious square
acre
Soil or rock L - - - ,.,... - - - - - - - J
THE BUILDING & FUTURE HARD COURT.
Design Impervious Area
TYPICAL HOMOGENEOUS
j END OF THE UNDERDRAIN PIPING, AT JUNCTIONS AND ALONG THE UNDERDRAIN
1. All dams and constructed fill to be within 95% of maximum dry density and 2% of optimum
EMBANKMENT
219 cf
THREADED PVC CAP. 450
Transition fill
Minimum Bioretention Floor Area at 5 %=
525 sf
Rock or gravel
HANDLES BOTH THE WATER QUALITY AND WATER QUANTITY TREATMENT FOR THIS IMPERVIOUS AREA.
-11-DE
BE E CA VA T
t
."" Pipe outlet x d:
Coars ti
o r
- ----- - -----
AFTER TREATMENT, THIS DRAINAGE OUTFALLS INTO THE EXISTING ROADSIDE DITCH ASSOCIATED WITH
aroun s
_ Blanket drain
Perforated colle cto r Foundaton drain
Area of
FOUNDATION DRAIN BLANKET DRAIN
Elevation
Elevation Area of Forebay Volume
Bioretention Basin
Chiir" drain
PERMEABLE PAVER DESIGN.
(ft)
(ft) Contours (sf) (cf)
Sand, 9mvel or rock
(0f) ,
THE PROPOSED BUILDING SHALL BE PARTIALLY LOCATED OVERTOP OF AN EXISTING PAVED BASKETBALL
a drain ou"Ot
526
0
Rack or gravel
NYL
OR
Rank tae _, i drain
BASIN FLOOR AREA SHALL BE SIZED TO BE 5% OF THE PROPOSED BUILDING & FUTURE HARD COURT's
443 279 245_ 443
691
607
IMPERVIOUS AREAS, LESS THE EXISTING IMPERVIOUS AREAS FROM THE BASKETBALL COURT BEING
Tronsition filter Transition filter
1,167
1,525
CHIMNEY DRAIN TOE DRAIN
SERI,
c; \3�Q1�-ta
R STRUC�URE.
MAXIMU
RISER
PONDIlNG).
450
Q @C' QUiIi VC)IUI"C1+e' Requirements:
PROPOSED DEVELOPMENT, AND A CONTRIBUTION SHALL BE MADE TO THE PRO -RATA SHARE PROGRAM
SWM
SWM NARRATIVE:
PROPOSED DEVELOPMENT PROVIDES STORMWATER QUALITY AND QUANTITY TREATMENT FOR THE
NOTES:
h 1. ROOF DRAIN SHALL HAVE DISCHARGE APRONS AT OUTLET TO PROVIDE
BASIN SHALL DRAIN TO THE ADJACENT FLOODPLAIN AREA & STREAM, CONSISTENT WITH THE CURRENT
j PROPER SCOUR PROTECTION PRIOR TO RELEASING RUNOFF INTO THE FOREBAY.
IMPERVIOUS AREAS ADDED. THE SITE HAS BEEN ANALYZED AND BREAKS DOWN THE DEVELOPMENT
BIORETENTION BASIN REQUIREMENTS;
ED
RIPRAP w/ GEOTEXTILE FILTER FABRIC UNDERLAYMENT 2' WIDE FOREBAY TOP
INTO TWO MAJOR SECTIONS, THE CONSTRUCTION OF THE PARKING LOT AND THE CONSTRUCTION OF
Minimum Forebay Volume= 0.25 inches per impervious square
acre
LOCATED AT THE LOW POINT OF THE FOREBAYS ENSURING POSITIVE DRAINAGE.
THE BUILDING & FUTURE HARD COURT.
Design Impervious Area
10,491 sf!
j END OF THE UNDERDRAIN PIPING, AT JUNCTIONS AND ALONG THE UNDERDRAIN
1. All dams and constructed fill to be within 95% of maximum dry density and 2% of optimum
Minimum Forebay Volume=
219 cf
THREADED PVC CAP. 450
THE PROPOSED PARKING LOT SHALL BE CONSTRUCTED WITH A PERMEABLE PAVER SYSTEM, WHICH
Minimum Bioretention Floor Area at 5 %=
525 sf
EX /ST /N� To
HANDLES BOTH THE WATER QUALITY AND WATER QUANTITY TREATMENT FOR THIS IMPERVIOUS AREA.
-11-DE
BE E CA VA T
management facilities; conversion is not to take lace until the site is stabilized and
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- ----- - -----
AFTER TREATMENT, THIS DRAINAGE OUTFALLS INTO THE EXISTING ROADSIDE DITCH ASSOCIATED WITH
Area of
THE SOUTHERN PARKWAY, WHERE IT CURRENTLY DRAINS. SEE FINAL SITE PLANS FOR PARKING LOT
Elevation
Elevation Area of Forebay Volume
Bioretention Basin
Volume
PERMEABLE PAVER DESIGN.
(ft)
(ft) Contours (sf) (cf)
Contours (sf)
(0f) ,
THE PROPOSED BUILDING SHALL BE PARTIALLY LOCATED OVERTOP OF AN EXISTING PAVED BASKETBALL
442 213 0 442
526
0
COURT. IN ACCORDANCE WITH DIRECTION FROM COUNTY ENGINEERING, THE PROPOSED BIORETENTION
NYL
OR
PLAST r
QUIVAL-E
BASIN FLOOR AREA SHALL BE SIZED TO BE 5% OF THE PROPOSED BUILDING & FUTURE HARD COURT's
443 279 245_ 443
691
607
IMPERVIOUS AREAS, LESS THE EXISTING IMPERVIOUS AREAS FROM THE BASKETBALL COURT BEING
444 0 333 444
1,167
1,525
REMOVED. THIS BIORETENTION BASIN WILL PROVIDE WATER QUALITY FOR THIS PORTION OF THE
W W cn rn
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-0 +50 0 +00:;,: 0 +50 1 +00 1 +50
BIORETENTION BASIN SCALE:
1 "= 5o'(H)
445
. i
435
430
2 +00
2499CGS
APPROX DRAT I AREA t94,60 SO IN
APPROX. WEIG#iT4MTt1FnAtr= t2A.GhL6S
3.04 _
1
�\ 1.25
C� �U .
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024.76 028.50
DIMENSIONS ARE FOR REFERENCE ONLY TV,13,PINTDISCXOSES SUBJECT IMTT RINAI9CN GRAWNSY EEIC MATERIAL V34VERONAAVE
ACTUAL DIMENSIONS MAV ARY rNYWP ASrxAS PRCFWEIARY WDHIS. THE RECEIPT R11FaRD, CA 34511
DIMENSIONS ARE 1.4 INCHES OR POSSESSION OFrAISPRNT DOES NOT IMdFEK °ATE 34 DUCTILE IRON PRN {tP0jDT2.1411
GRATE PAM$ H•20 LOAD RATING TF1.y8FEA, sit LICEN >ETnE VSe Oc TriECES1UINCR YAZ #nsy ar.:a
QUALITY: i 111ALIIMLCONFORMTOASTMA53SCRkDEl4 £-0-L� �CNHIC?4PVFQ +WATISrI5N�5Ni'ci?,:lN REngEppY EeC FROJECTNO,RIAYE � ���t W"TM�"/IM'L1R1"iCQ1�
PAINT; CA5TINGS ARE FVRNISFiEDYa1TriAELAGKPAINT RFARO CTUNCFTHISPRINTCR&VVIN 0,LM�TION TITLE
CONTAINED HEREIN. CR14ANUPACTURE XAW DATE 511.10
LOCKING DEVICE AVAILA :9LE UPON REQUEST SEE DRAWING NO. AiZTMHFq- FRCU.FCRTs.ELI O%RETOPTHERS 74Dl$TAPDARDOHATEA95EaeLY -TYPE$
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PROPOSED DEVELOPMENT, AND A CONTRIBUTION SHALL BE MADE TO THE PRO -RATA SHARE PROGRAM
TO HANDLE THE WATER QUANTITY ASPECT OF THIS IMPERVIOUS AREA. THE PROPOSED BIORETENTION
NOTES:
h 1. ROOF DRAIN SHALL HAVE DISCHARGE APRONS AT OUTLET TO PROVIDE
BASIN SHALL DRAIN TO THE ADJACENT FLOODPLAIN AREA & STREAM, CONSISTENT WITH THE CURRENT
j PROPER SCOUR PROTECTION PRIOR TO RELEASING RUNOFF INTO THE FOREBAY.
LOCATION OF RUNOFF FROM THE BASKETBALL COURT BEING REMOVED.
U 2. 5' WIDE FOREBA Y WEIR CREST AT ELEV. 442.5' SHALL BE MADE OF CL. I
ED
RIPRAP w/ GEOTEXTILE FILTER FABRIC UNDERLAYMENT 2' WIDE FOREBAY TOP
ALL PROPOSED IMPERVIOUS AREAS ARE TREATED THROUGH ONSITE FACILITIES, OR THROUGH THE
OF DAM ELEV.= 443' (FOREBAY BOTTOM DIM: 21'x10). WEIR CREST SHALL BE
PRO -RATA SHARE PROGRAM,
LOCATED AT THE LOW POINT OF THE FOREBAYS ENSURING POSITIVE DRAINAGE.
J. 4" SOLID PVC CLEAN -OUT STAND PIPES SHALL BE PROVIDED AT THE
General Construction notes for Stormwater Management Plans
j END OF THE UNDERDRAIN PIPING, AT JUNCTIONS AND ALONG THE UNDERDRAIN
1. All dams and constructed fill to be within 95% of maximum dry density and 2% of optimum
j SYSTEM EVERY 50' O.C. MIN. CLEAN -OUTS SHALL BE WATERTIGHT & HAVE A
moisture content. All fill material to be approved by a geotechnical engineer. A
THREADED PVC CAP. 450
geotechnical engineer is to be present during construction of dams.
2. Pipe and riser joints are to be watertight within stormwater management facilities.
EX /ST /N� To
3. For temporary sediment traps or basins which are to be converted to permanent stormwater
-11-DE
BE E CA VA T
management facilities; conversion is not to take lace until the site is stabilized and
g � P
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permission has been obtained from the County erosion control inspector.
W W cn rn
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-0 +50 0 +00:;,: 0 +50 1 +00 1 +50
BIORETENTION BASIN SCALE:
1 "= 5o'(H)
445
. i
435
430
2 +00
2499CGS
APPROX DRAT I AREA t94,60 SO IN
APPROX. WEIG#iT4MTt1FnAtr= t2A.GhL6S
3.04 _
1
�\ 1.25
C� �U .
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024.76 028.50
DIMENSIONS ARE FOR REFERENCE ONLY TV,13,PINTDISCXOSES SUBJECT IMTT RINAI9CN GRAWNSY EEIC MATERIAL V34VERONAAVE
ACTUAL DIMENSIONS MAV ARY rNYWP ASrxAS PRCFWEIARY WDHIS. THE RECEIPT R11FaRD, CA 34511
DIMENSIONS ARE 1.4 INCHES OR POSSESSION OFrAISPRNT DOES NOT IMdFEK °ATE 34 DUCTILE IRON PRN {tP0jDT2.1411
GRATE PAM$ H•20 LOAD RATING TF1.y8FEA, sit LICEN >ETnE VSe Oc TriECES1UINCR YAZ #nsy ar.:a
QUALITY: i 111ALIIMLCONFORMTOASTMA53SCRkDEl4 £-0-L� �CNHIC?4PVFQ +WATISrI5N�5Ni'ci?,:lN REngEppY EeC FROJECTNO,RIAYE � ���t W"TM�"/IM'L1R1"iCQ1�
PAINT; CA5TINGS ARE FVRNISFiEDYa1TriAELAGKPAINT RFARO CTUNCFTHISPRINTCR&VVIN 0,LM�TION TITLE
CONTAINED HEREIN. CR14ANUPACTURE XAW DATE 511.10
LOCKING DEVICE AVAILA :9LE UPON REQUEST SEE DRAWING NO. AiZTMHFq- FRCU.FCRTs.ELI O%RETOPTHERS 74Dl$TAPDARDOHATEA95EaeLY -TYPE$
?tl01- ti542A {SRVI$5IDEV. QMff( 3Y SPELIFV:PYiiITTEN
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1 PLAN
FOR DETAILS.
STATE ,
PPROVED MIX c
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(MIN.
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&
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ATER_TIG_HT.
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BIORETENTION BASIN SCALE:
1 "= 5o'(H)
445
. i
435
430
2 +00
2499CGS
APPROX DRAT I AREA t94,60 SO IN
APPROX. WEIG#iT4MTt1FnAtr= t2A.GhL6S
3.04 _
1
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C� �U .
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024.76 028.50
DIMENSIONS ARE FOR REFERENCE ONLY TV,13,PINTDISCXOSES SUBJECT IMTT RINAI9CN GRAWNSY EEIC MATERIAL V34VERONAAVE
ACTUAL DIMENSIONS MAV ARY rNYWP ASrxAS PRCFWEIARY WDHIS. THE RECEIPT R11FaRD, CA 34511
DIMENSIONS ARE 1.4 INCHES OR POSSESSION OFrAISPRNT DOES NOT IMdFEK °ATE 34 DUCTILE IRON PRN {tP0jDT2.1411
GRATE PAM$ H•20 LOAD RATING TF1.y8FEA, sit LICEN >ETnE VSe Oc TriECES1UINCR YAZ #nsy ar.:a
QUALITY: i 111ALIIMLCONFORMTOASTMA53SCRkDEl4 £-0-L� �CNHIC?4PVFQ +WATISrI5N�5Ni'ci?,:lN REngEppY EeC FROJECTNO,RIAYE � ���t W"TM�"/IM'L1R1"iCQ1�
PAINT; CA5TINGS ARE FVRNISFiEDYa1TriAELAGKPAINT RFARO CTUNCFTHISPRINTCR&VVIN 0,LM�TION TITLE
CONTAINED HEREIN. CR14ANUPACTURE XAW DATE 511.10
LOCKING DEVICE AVAILA :9LE UPON REQUEST SEE DRAWING NO. AiZTMHFq- FRCU.FCRTs.ELI O%RETOPTHERS 74Dl$TAPDARDOHATEA95EaeLY -TYPE$
?tl01- ti542A {SRVI$5IDEV. QMff( 3Y SPELIFV:PYiiITTEN
PERM159KW FRC!NNYLNX".AST: mHp SIZE A SCALE 10 ENEET tCfT DkYONO, 1001.110 -F77 REV C
0 o17�,TH
,e �
O SCOTT R. COLLINSZ
U Lic. No. 035791,2
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