HomeMy WebLinkAboutWPO202100034 Plan - VSMP 2021-06-16GENERAL NOTES
NITY MAI
E: 1" = 2000'
OWNER:
TMP 04500-00-00-068C2 TMP 04500-00-00-068EO
VICTORIAN PROPERTIES LLC GIBSON, PATRICIA PRICE
610 W RIO ROAD 1210 INGLECRESS DRIVE
CHARLOTTESVILLE, VA 22901 CHARLOTTESVILLE, VA 22901
DEVELOPER:
RIVERBEND DEVELOPMENT
455 2ND STREET NE, SUITE 400
CHARLOTTESVILLE, VA 22902
ENGINEER:
COLLINS ENGINEERING
200 GARRETT ST, SUITE K
CHARLOTTESVILLE, VA 22902
(434)293-3719
TAX MAP NO.:
04500-00-00-068C2 & 04500-00-00-068EO
TOTAL AREA:
TMP 45-68C2: 2.756 ACRES
TMP 45-68E0: 2.183 ACRES
TOTAL ACREAGE: 4.939 ACRES
ZONING:
R-15 RESIDENTIAL, CLUSTER DEVELOPMENT & BONUS DENSITY
FOR AFFORDABLE HOUSING. IN ADDITION, THE PROPERTY IS SUBJECT TO
AIRPORT IMPACT OVERLAY DISTRICT & STEEP MANAGED SLOPES OVERLAY
DISTRICT
PROPOSED USE:
96 SINGLE FAMILY ATTACHED & MULTI -FAMILY RESIDENTIAL UNITS
(15) TOWNHOUSE UNITS
(81) MULTI -FAMILY RESIDENTIAL UNITS (ONE & TWO BEDROOM UNITS
DENSITY.
ALLOWABLE BY -RIGHT DENSITY: 15 DU/AC + 309, BONUS DENSITY INCREASE FOR
AFFORDABLE HOUSING
ALLOWABLE DENSITY: 4.939 ACRES x 15 DU/ACRE x 307 BONUS DENSITY INCREASE
ALLOWABLE DENSITY: 74 BY -RIGHT UNITS + 11 AFFORDABLE & 11 MARKET RATE UNITS
TOTAL ALLOWABLE DENSITY. 96.3 (19.498 DWELLING UNITS/ACRE)
TOTAL PROPOSED DENSITY: 96 UNITS (19.437 DWELLING UNITS/ACRE)
OPEN SPACE. •
TOTAL OPEN SPACE REQUIRED (CLUSTER DEVELOPMENT 259) = 1.235 AC
TOTAL OPEN SPACE PROPOSED: = 2.10 ACRES (42.5%)
OPEN SPACE TO BE OWNED AND MAINTAINED BY THE HOMEOWNERS ASSOCIATION. ALL
OPEN SPACE SHALL BE RESERVED IN A DEED FOR THE COMMON USE OF LOT OWNERS IN
THE SUBDIVISION AND DEDICATED TO THE HOA.
TREE PRESERVATION:
NONE REQUIRED WITH THE DEVELOPMENT
PRESERVED/MANAGED SLOPES: NO PRESERVED SLOPES ARE SHOWN WITHIN THE LIMITS OF THE PROPERTY. 4
SMALL AREAS OF MANAGED SLOPES ARE LOCATED ON THE PROPERTY AND SHOWN ON
THE EXISTING CONDITIONS PLAN SHEET.
BUILDING HEIGHTS. •
NO MINIMUM BUILDING HEIGHT & MAXIMUM BUILDING HEIGHTS SHALL NOT EXCEED 60 FEET.
NOTE, BUILDINGS GREATER THAN 3 STORIES MUST STEP BACK A MINIMUM OF 15 FEET
AFTER THE 3RD STORY OR PROVIDE A MINIMUM 15 FOOT FRONT STEPBACK OR SIDE
SETBACK ADJACENT TO A STREET.
TOWNHOUSE UNITS: 35' MAXIMUM HEIGHT (3 STORIES)
MULTI -FAMILY UNITS
BLDGS 1,5 AND 6: 40' MAXIMUM HEIGHT (3 STORIES AND A BASEMENT)
BLDGS 3 AND 4: 60' MAXIMUM HEIGHT (4 STORIES). NOTE, BLDGS 3 & 4 FRONT ON
A GREENSPACE AREA, AND A SPECIAL EXCEPTION REQUEST IS INCLUDED
WITH THE APPLICATION FOR AN EXCEPTION TO THE REQUIRED STEPBACK ALONG
THESE (2) BUILDINGS.
SETBACKS:
FRONT. 5' MINIMUM (18' MINIMUM FROM R/W OR EDGE OF SIDEWALK TO GARAGE) AND 25'
MAXIMUM
SIDE: NONE - MIN. 10' BUILDING SEPARATION
REAR: 20' MINIMUM.
NOTE: COVERED PORCHES, BALCONIES, CHIMNEYS, EAVES, AND THE LIKE
ARCHITECTURAL FEATURES MAY PROJECT NOT MORE THAN FOUR FEET INTO ANY REQUIRED
YARD PROVIDED THAT NO SUCH FEATURE SHALL BE LOCATED CLOSER THAN SIX FEET
FROM ANY LOT LINE.
SUBDIVISION STREETS:
CURB & GUTTER
WATERSHED:
SOUTHFORK RIVANNA RIVER WATERSHED
AGRICULTURAL/ FORESTAL DISTRICT. NONE
TOPO & SURVEY-
TOPOGRAPHY PROVIDED BY ROUDABUSH, GALE AND ASSOCIATES, JANUARY 2021. THE
BOUNDARY LINE INFORMAT70N IS PROVIDED BY ROUDABUSH, GALE, AND ASSOCIATES.
INFORMAT70N FIELD VERIFIED BY COLLINS ENGINEERING FEBRUARY 2021.
DATUM:
NAD 83
EXISTING VEGETATION:
BOTH PARCELS ARE PRIMARY WOODED, WITH EXCEPTION FOR THE CLEARED AREA
ASSOCIATED WITH THE UTILITY EASEMENTS
LIGHTING.
NO SITE OR STREET LIGHTING IS PROPOSED WITH THIS PROJECT. ANY SITE
LIGHTING SHALL CONFORM TO ALBEMARLE COUNTY ZONING ORDINANCE REQUIREMENTS.
PARKING:
96 SINGLE FAMILY ATTACHED & MUL77-FAMILY UNITS = 192 OFF-STREET PARKING SPACES
REQUIRED
MINIMUM (1) DRIVEWAY SPACE + (1) GARAGE SPACE
TOTAL PARKING PROVIDED: 192 OFF-STREET PARKING SPACES
GUEST SPACES: 1 SPACE PER 4 UNITS = 24 SPACES REQUIRED
PROVIDED GUEST PARKING SPACES (ON -STREET PARKING) = 25 SPACES
ROADWAYS AND PAVED
CIRCULATION AREA = 28,235 SF (ACCESS EASEMENT/TRAVELWAY)
IMPERVIOUS AREAS (WITHIN LOD): PROPOSED ROADWAY = 38,366 SF
PROPOSED SIDEWALK = 13, 097 SF
PROPOSED DRIVEWAYS = 23,549 SF
PROPOSED BUILDINGS = 61,480 SF
TOTAL = 136,492 SF
PHASING:
THIS PROPERTY SHALL BE DEVELOPED WITHIN 1 PHASE
BUILDING SITES:
PARCELS 1-15 AND THE RESIDUE PARCEL EACH CONTAIN A BUILDING SITE THAT
COMPLIES WITH THE REQUIREMENTS OF SECTION 4.2.1 OF THE ALBEMARLE COUNTY
ZONING ORDINANCE.
BURIAL SITES:
NO CEMETERIES WERE FOUND DURING FIELD INVESTIGATION OF THE SITE.
STREAM BUFFERS:
NO STREAM BUFFERS ARE LOCATED ON THESE PROPERTIES OR WITHIN THE LIMITS OF
THIS PROJECT AREA.
FLOODPLAIN:
THIS PROPERTY IS NOT IN A FLOODPLAIN ZONE AS SHOWN ON FEMA
MAP#51003CO229D, DATED FEBRUARY 4, 2005. THIS PROPERTY IS NOT LOCATED
WITHIN A DAM INUNDATION ZONE.
RETAINING WALLS:
RETAINING WALLS ARE PROPOSED WITH THE DEVELOPMENT AS SHOWN ON THE PLAN,
SEE SHEET4 FOR DETAILS. RETAINING WALLS GREATER THAN 3' IN HEIGHT REQUIRE A
SEPARATE BUILDING PERMIT. WALLS EXCEEDING 4' IN HEIGHT REQUIRE A STAMPED
ENGINEERING DESIGN. WALLS CROSSING LOT LINES REQUIRE AN EASEMENT.
LANDSCAPING:
STREET TREES ARE PROPOSED ALONG THE NEIGHBORHOOD STREETS IN ACCORDANCE
WITH ALBEMARLE COUNTY LANDSCAPING REQUIREMENTS WITHIN SECTION 32.7.9 OF THE
COUNTY CODE. A LANDSCAPING PLAN WILL BE PROVIDED WITH THE FINAL SITE PLAN
FOR COUNTY REVIEW AND APPROVAL. ALL LANDSCAPING REQUIREMENTS SHALL BE
SHOWN ON THIS FINAL LANDSCAPING PLAN. STREET TREES SHALL BE PROVIDED
ALONG THE PUBLIC STREETS 50' O.C. IN ACCORDANCE WITH VDOT AND ALBS. CO.
STANDARDS.
TRASH:
EACH UNIT SHALL HAVE AN INDIVIDUAL TRASH CONTAINER, AND ALL TRASH SHALL BE
COLLECTED BY A DRIVING DUMPSTER SERVICE.
VICTORIAN HEIGHTS
TMP 45-10
-- RIDGEWOO EL&
ANORLP
ZONING: RURAL
DB.5163, PG.405
RECREATION AREA:
OFFSITE EASEMENT
TMP 45-74A
WEBER, LEWIS A LIVING
TRUST
ZONING: RURAL
DB.4998, PG.437
VSMP PLAN
WP02021m00XXX
RIO DISTRICT
ALBEMARLE COUNTY, VIRGINIA
f
/
TMP45-73
/
HI ES,WIL ZELDA OR
INE
/
ZONINLE G:
ZONING: RURAL
/
DB -56, PG.6o7
/
LOTz 1 LOTz LOTS I
1 LOT LOTS LOT
OT7 /
r--- - LOTS I
-. .-- •� LOTS
Ii
L L _. -..
BUILDING #i
UNITS
T \
\
\
MALLOY FORD
ZONING: HC
UNITS
TMP 45-68Co
CHARLOTTESVILLE
REALTY CORP
ZONING: HC
DB.u439, PGa96
REQUIRED RECREATIONAL AREA: 96 UNITS x 200 SF = 19,200 SF
PROPOSED 22,220 SF (0.51 AC) INCLUDING (1) TOT LOT (2,515 SF), (1) RECREATION FIELD
(8,000 SF), AND PASSIVE RECREATIONAL AMENITIES
TOT LOT AREA SHALL INCLUDE THE FOLLOWING, AT A MINIMUM:
ONE (1) SWING (FOUR SEATS)
ONE (1) SLIDE WITH TWO (2) CLIMBERS
ONE (1) BUCKABOUT OR WHIRL
TWO (2) BENCHES
RECREATIONAL PLAYFIELD
NOTE: A RECREATIONAL SUBSTITUTION WAIVER WILL BE SUBMITTED WITH THE FINAL SITE
PLAN FOR THE PROPOSED RECREA7ONAL AMENITIES WITHIN THE DEVELOPMENT.
ALL PROPOSED GRADING SHALL BE CONSTRUCTED ON SITE, WITHIN EXISTING RIGHT-OF-WAY,
OR WITHIN EXISTING EASEMENTS. OFFSITE UTILITY EASEMENTS AND SIGHT DISTANCE
EASEMENTS ARE PROPOSED WITH THIS DEVELOPMENT
----BERKMAR -DRIVE-
STATE ROUTE 140,
SHEET LAYOUT
SCALE: 1" = 50'
/ f
I /
TMP 45-7z
RIVANNA WATER & TMP 45-7i 45.69Ba
SEWER AURTHORITY RIVANNA WATER & TMP
OD, HUNTER W
ZONING: RURAL ✓ SEWERAURTHORITY VOABLETUSTC
DB.768, PG.z / REVOCABLE WOOD,/O
77 ZONING: RURAL HUNTER W WOOD,
/ D8.768, PG.z77 � TRUSTEE
/ ZONING: RURAL
DB.53a2, PG.yB
---8'OODBURNaoaD�-------------- - - - ---
STATE ROUTE 659
--
___1 1
i- __+--
-BU�DING
-- F
#5
!
i'e UNITS
!
(4)AFFORD {kBLE
!
UNITS &(8)MARK ET
RATE UNITS
i UNITS
ARKET R
UNITS
LOT zO LOT zz LOT zz LOTH LOT z4 LOT iS
TMP 45-68Dz
COMMONWEALTH OF
VIRGINIA VDOT RIGHT OF
WAY SECTION
ZONING: Cz
COMMERCIAL
DBa754, PG-5-4
--
------------------
--------------
�- _-
E
— — WAL-M RTREA STATE
-----------— — BUSINESS C/O
— WAL-MARTSTORES
— — #1780
_ ZONING: HC
TMP45-68
AMATO, SANDRA P; CHRISTOPHER B
GLEASON & HUNTER W WOOD, TRUSTEES
ZONING: HC r
DB 5376, PG.608 I
Sheet List Table
Sheet
Number
Sheet Title
1
COVER
z
EXISTING CONDITIONS
3
EROSION & SEDIMENT CONTROL NARRATIVE
4
EROSION & SEDIMENT CONTROL DETAILS
5
EROSION & SEDIMENT CONTROL PLAN - PHASE 1
6
EROSION & SEDIMENT CONTROL PLAN - PHASE 11
7
EROSION & SEDIMENT CONTROL PLAN - PHASE III
8
STORMWATER MANAGEMENT PLAN
9
STORMWATER MANAGEMENT DETAILS
10
STORMWATER MANGEMENT DETAILS
20 TOTAL NUMBER OF SHEETS
I DB.188i, PG.ssz
I
I
I
1
I
1
I
I
1
sc,"R. �LLINS'Z
U N0. 35791
06/07/21 c�
oIONAL E��1 '
4
z
O
M
Lr)
Vl Do
m
Z z
o `)
U)
O a U)
U
U LU u
r7 w
�0Z
wz z
z O
o �
U w
/ U
W w LU
w
c H
z
i
- a
W N
O
d7
N
W \N
LIJ
U11
O
J
z Q
U U
LI J
I n
VJ
I�
O w
a �
JOB NO.
202196
SCALE
III _ 501
SHEET NO.
1
c
1 i F
(` ) r � l�i \ \ � � I �TH � tT
\ d SCOTT R. LLINSZ
u No. 35791
06/07/21
�i / \
I 1
l 1 !
ZON�PVG: RURAL WILLE LEE HINES'�_
D�4998, PG.437 ZONING: RURAL 0
T
RIVANNAWATER
\ \ z
ATER & TMP i TMP 45 69Bi O
45A WOOD, HUNTER W U)
— / SEWER ZONING:
RURAL
/ I RIVANNA WATER & / /
I / \ WOODBURN ROAD ZONING: RURAL \ SEWER AUI�THORITY \ REVOCABLE TRUST C/O U'w) f
DB.768, PG.277 ZONING: RURAL / HUNTER W WVOOD, / V/ m
S�AITE ROUTE 6 / I DB.768, Pc.z77 / / TRUSTEE Z o F
¢� ZONING: RURAL a Lu
•
Lu
�W (DB 504r >5¢J I I / / / _D�r3o�PG48 — --------- O d
off \— - / / / — — Lu
off o
z
_ _ i m Lu CID18 c L / / W Lu
� L
LIMITED ACCESS �� \ \ \ — �_ \ z
� l /
LINE (PER HW —�
PLAT) /
WATERLINE /
_ EASEMENT
TMP 45-80 — _DB 1439 PG 196
RIGEWg0D (MOTEL 8, / A � � � � WATERLINE
MANOR -_LP / / _ EASEMENT / 1
ZONING: RURAL - -- / / \ \ — DB 1446 PG 445 / / 1 / / / a C
DBSi63, PG.405 \ \ z
-- / WOODED AREA WITH A \ \ '� / / / / f / / 'TMP 45J68f�i
/ \ / / / / f W006ED AREA WITH A COMMONWEALTH OF
�MIXTURE OF DECIDUOUS AND / / / / MIXTURE OF DECIDUOUS AND VIRGINIA VDOT GHT-OF
VERGREEN TREES — / VERGREEN TREES WAY SECTION
%� �✓� / 7A : Ci L9
C NING
� — AH � � / � -� / / / ',� � � / � /� f � - f / /DB.i754,
/ / 00
\\00
LIMITS OF EXISTING / � � s�� � � % CV
MANAGED STEEP SLOPES ON THE / ` f / / .4
� ,✓ � � \ � � \ � � � / / / � � l SITE
'- � � / � ✓ � � _ � � �
04
N
DRAINAGE EASEMENT
DB 1446 PG 445
J
TEMPORARY
-I ` � 1 \ / J- . •-\ � �, � � i ; � �
\ \ L - CONSTRUCTION — — — f / / / / / / / /
EASEMENT
DB 1439 PG 196 / — _ / / / i LL1
i
1g �— BENCHMARK
TOP OF DROP INLET \ \ \ / / \� U)
\ — -- ELEV=514.08 \
O I z
A
i — •.
�l+t]P4�68D5
• WAL_MART REA4 EST TE � O
1 BUSIN SS QO Q
/ — � , , ; . .. • - , :,• ..: :• • - • ,::, .. `. ••. � � ice— �AL-f,�IA�T S�TOR � LLI Vi
#1'781 .
WOW / i i / ��ZONING: H / = z
i.-.. - .112
Ln
A
0� LLI
/ STATE ROUTE 1 03
/ willBENCHMARK TMP-4 -
_- — — ----- ` TOP OF DROP INLET A�O, SANDRV, / / / / 1 1 I ~
— — _ ELEV=503.67 CHRIST HERB`/ Lu Lu /��
- - - - - - _ -- --- — - - — — — HUNT / — / c U
GLEASON
_- i — — - -- — \ \ WOOD TR1bST
6 I 1> ��
1/ i lZ fY1 N: H I �
_- LIMITS O --- -- - -- — - -- — _ 8 \ 1 l \ ✓ I I 1 1 \ i / ~ F EXISTING CURB / \ \ \o ) / \ /
AND CONCRETE SIDEWALK TO '' TMP 45-68Co � _ \ 1 Lu
~
BE REMOVED FOR NEW CHIARLOTTESVILLE
ENTRANCE AT BERKMAR REALTY CORP / / / /
DRIVE BONING: HC '� _� � I Vw1H I � / /"
DB.i439, PG.1g6 �Q
i
i
o
CN
TMP4YFOR
ZONING:
FORD ZONING: HC I � o
DB.4863, PG.461
w
a ul
�� of GRAPHIC SCA E I I i I JOB NO.
202196
30 0 15 30 6 12�
SCALE
ill
FEET30 ft. I I SHEET NO.
tl Z
EROSION EROSION ND SEDIMENT CONTROL PRE / EDIMENTCONTRO ACTICES SHALLBE E VIRGINIA EROSION AND SEDIMENT MEASURES: &EROSION CONTROL NOTES DESCRIPTION OF EROSION & SEDIMENT EROSION CONTROL NOTES NARRATIVE
STRUCTURAL ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION PURPOSE. • TH OF
CONTROL HANDBOOK. STRUCTURAL PRACTICES USED IN THIS SECTION CONSIST OF THE FOLLOWING:
AND SEDIMENT CONTROL PRACTCES WILL BE CONSTRUCTED AND MAINTAINED CONTROL MEASURES. THE PURPOSE OF THIS LAND DISTURBING ACTIVITY IS TO GRADE THE VICTORIAN HEIGHTS SITE FOR A Jr
301 SAFETY FENCE. ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL MEASURES: RESIDENTIAL DEVELOPMENT. THE TOTAL AREA TO BE DISTURBED WITH THIS PLAN IS 5.04 ACRES. - A PROTEC7VE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR IT IS ANTICIPATED TO USE CONSTRUCTION ENTRANCES, DIVERSION DIKES, EXISTING SEDIMENT EXISTING SITE CONDITIONS
EROSION CONTROL MEASURE BY THE PUBLIC. APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. BASINS, AND SILT FENCES WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY MOST OF THIS SITE IS WOODED AND SLOPES TO THE SOUTHEAST AND NORTHEAST THE SITE IS SCOTT R. LINS'Z
UNSAFE BY VIRTUE OF POTENTIAL ACCESS BY T74£ PUBLIC. ES-2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE ACTIVITIES. LOCATED TO THE NORTHWEST OF BERKMAR DRIVE AND SOUTHEAST OF WOODBURN ROAD. THE U No. 35791 ,�
3.02 CONSTRUCTION ENTRANCE: PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT TEMPORARY STOCKPILE AREAS WILL BE MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED MAJORITY OF THE SITE DRAINS TO VARIOUS EXISTING CULVERTS AND INLETS, AN EXISTING
A STABILIZED PAVED CONSTRUCTION ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A OF LAND DISTURBING AC77WTY, AND ONE WEEK PRIOR TO THE FINAL WATERMAIN TO REMAIN RUNS DIRECTLY THROUGH THE MIDDLE OF THE SITE AND ITS WATERLINE 16 06/07/21 c`
CONSTRUCTION SITE. TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. INSPECTION. FROM AREAS TO BE GRADED AND STORED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL p
EASEMENT IS CLEARED. �
CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE 774E AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ES-3: ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR BE ON SITE AND SHALL BE STABILIZED WITH A TEMPORARY VEGETATIVE COVER. PERMANENT ADJACENT AREAS: �SSIONAL E��l
ROADWAYS TO OR AS THE FIRST STEP IN CLEARING. SEEDING WILL BE PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE EXCAVATED AND THIS SITE IS BORDERED TO THE SOUTHEAST BY BERKMAR DRIVE AND TO THE NORTHWEST BY
3.05 SILT FENCE: ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE WHERE CONSTRUCTION ACTIVITIES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE WOODBURN ROAD. VACANT LAND IS ALONG THE NORTHEAST BORDER OF THE SITE AND A
A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPORTING POSTS AND MAINTAINED ON THE SITE AT ALL TIMES PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE. RESIDENTIAL DWELLING EXISTS TO THE SOUTHWEST OF THE SITE.
ENTRENCHED, TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERATIONS IN ORDER ES-5: PRIOR TO COMMENCING LAND DISTURBING ACT7077ES IN AREAS OTHER THAN
TO PREVENT SEDIMENT FROM LEAVING THE SITE, AND TO DECREASE THE VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. OFFSITE LAND DISTURBANCE:
FLOWS. 774E SILT FENCE BARRIERS SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED T0, OFF-SI1E TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT IMPROVEMENTS TO BE MADE WITHIN THE VDOT RIGHT-OF-WAY ALONG BERKMAR DRIVE AND
FROM SHEET FLOW AS INDICATED. 774EY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE Wl7H THE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A WOODBURN ROAD.
VIRGINIA EROSION &SEDIMENT CONTROL HANDBOOK (VESCH). SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND DORMANT FOR MORE THAN SEVEN DAYS. THESE AREAS SHALL BE SEEDED WITH FAST
( ) APPROVAL BY THE PLAN APPROVING AUTHORITY. GERMINATING VEGETATION IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS SELECT7ON OF CRITICAL AREAS:
A S STORM DRAIN INLET PROTECTION: TREE PROTECTION FENCING AND SILT FENCE SHALL BE MAINTAINED ALONG THE PROPERTY LINES AS
A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET TO PREVENT SEDIMENT FROM ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. SHOWN ON THE PLAN TO THE EAST, NORTH, AND SOUTH OF THE SITE TO PROTECT THE ADJACENT
ENTERING STORM DRAINAGE SYSTEMS PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA. INLET PR07ECTION APPLIES WHERE EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND CONSTRUCTION ENTRANCE: PROPERTIES CONTRACTOR SHALL ENSURE THAT ALL SEDIMENT MAINTENANCE CONTROLS ARE ALONG
STORM DRAIN INLETS ARE TO BE MADE OPERATIONAL BEFORE PERMANENT STABILIZA7ON OF THE CORRESPONDING DISTURBED DRAINAGE AREA. SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. A STABILIZED PAVED CONSTRUCTION ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF
3.08 CULVERT INLET PROTECTION. ES-7.•ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL WOODBURN ROAD AND BERKMAR DRIVE TO ENSURE THAT NO SEDIMENT LEAVES THE SITE AND
A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM CULVERT. TO PREVENT SEDIMENT FROM ENTERING STORM MEASURES AT ALL TIMES DURING LAND DISTURBING AC770TIES AND DURING VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION SITE TO REDUCE THE AMOUNT OF MUD DRAINS ONTO THE ROADS.
CULVERTS PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA. INLET PR07EC77ON APPLIES WHERE STORM CULVERTS ARE EXIS77NG SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. SOILS:
OR TO BE MADE OPERATIONAL BEFORE PERMANENT STABILIZATION OF THE CORRESPONDING DRAINAGE AREA. ES-8:DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE SOILS MAP IS INCORPORATED INTO EROSION CONTROL PLAN PHASE l WITH SOILS DATA INCLUDED Z
3.09 TEMPORARY DIVERS/ON DIKE. APPROVED WATER FILTERING DEVICE AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS. WITH THIS NARRATIVE. 0
A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA. TO DIVERT STORM RUNOFF U)
FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPR07ECTED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET TO DIVERT ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES SILT FENCE. SEQUENCE OF CONSTRUCTION: U)
SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING FACILITY SUCH AS A SEDIMENT TRAP OR SEDIMENT BASIN. USE PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC STRETCHED PHASE l: 2:
WHEREVER STORMWA7ER RUNOFF MUST BE TEMPORARILY DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON SITE NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE 1. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED. m
ACROSS AND ATTACHED TO SUPPORTING POSTS AND ENTRENCHED. TO INTERCEPT AND DETAIN �
DURING CONSTRUCTION. 774ESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 MON774S OR LESS, WHICH CAN BE PROLONGED W774 EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 2. PRIOR TO DISTURBANCES, THE LIMITS OF DISTURBANCE SHALL BE FLAGGED AND THE TREE Z O U)
SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERATIONS IN
PROPER MAINTENANCE. PROTECTION FENCING SHALL BE INSTALLED. � UU)i
312 DIVERSION: ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE TO DECREASE THE VELOCITY OF SHEET O a w
General construction notes for Erosion and Sediment Control lens J. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS
A CHANNEL CONSTRUCTED ACROSS A SLOPE WI774 A SUPPOR7ING EAR774EN RIDGE ON 774E LOWER SIDE. TO REDUCE SLOPE LENGTH AND TO P FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS SHALL BE WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT. U a
INTERCEPT AND DIVERT STORMWATER RUNOFF TO STABILIZED OUTLETS AT NON -EROSIVE VELOCITIES. APPLIES WHERE RUNOFF FROM AREAS OF INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF 0
4. THE PROPOSED CONSTRUCTION ENTRANCE WITH WASH AREAS SHALL BE INSTALLED AS SHOWN ON �/� w Lu
HIGHER ELEVATION MAY DAMAGE PROPERTY, CAUSE EROSION, OR INTERFERE WITH 774E ESTABLISHMENT OF VEGETATION ON LOWER AREAS, 1. The plan approving authority must be notified one week prior to the pre -construction FROM SHEET FLOW AS INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH THE PLANS. THE CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE V / O Z
WHERE SURFACE AND/OR SHALLOW SUBSURFACE FLOW IS DAMAGING SLOPING UPLAND, AND WHERE 774E SLOPE LENG774 NEEDS TO BE REDUCED conference, one week prior to the commencement of land disturbing activity, and one week z O
TO MINIMIZE SOIL LOSS. RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE H O r
prior to the final inspection. a
P Pe 1n
w TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED SURFACE. WHERE
313 TEMPORARY SEDIMENT TRAP.- HANDBOOK (VESCH). (VEHICULAR) \\
2. All erosion and sediment control measures will be constructed and maintained according to / > u
A TEMPORARY PONDING AREA FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT W/774 A STONE OUTLET. TO DETAIN SEDIMENT -LADEN g PERMANENT STABILIZATION: SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED w Lu
RUNOFF FROM SMALL DISTURBED AREAS LONG ENOUGH TO ALLOW THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. USE BELOW DISTURBED minimum standards and specifications of the Virginia Erosion and Sediment Control w
THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DlS1URBED AREAS BY PLANTING THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY �
AREAS WHERE THE TOTAL CONTRIBUTING DRAINAGE AREA /S LESS THAN 3 ACRES, WHERE THE SEDIMENT TRAP WILL BE USED NO LONGER THAN Handbook and Virginia Regulations VR 625-02-00 Erosion and Sediment Control SHOVELING OR SWEEPING AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET
18 MONTHS, AND IT MAY BE CONSTRUCTED EITHER INDEPENDENTLY OR IN CONJUNCTION WI774 A TEMPORARY DIVERSION DIKE. Regulations. SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO W F
l3= WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER.
3.14 TEMPORARY SEDIMENT BASIN: 3. All erosion and sediment control measures are to be laced prior to or as the first Ste in PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT lS ECONOMICAL, ADAPTABLE TO z
P P P 5. INSTALL THE INITIAL CONSTRUCTION MEASURES AS SHOWN ON THE PHASE I EROSION CONTROL
A TEMPORARY BARRIER OR DAM M774 A CONTROLLED STORMWATER RELEASE STRUCTURE FORMED BY CONSTRUCTING AN EMBANKMENT OF SITE CONDITIONS, AND ALLOWS SELECT7ON OF THE MOST APPROPRIATE PLANT MATERIALS TO
COMPACTED SOIL ACROSS A DRAINAGEWAY. TO DETAIL SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS /N "WET" AND `DRY" STORAGE clearing. SHEET. THIS INCLUDES (1) SEDIMENT TRAP, (1) SEDIMENT BASIN, WIRE SILT FENCE, AND
LONG ENOUGH FOR 774E MAJORITY OF 774E SEDIMENT TO SETTLE OUT. APPLIES BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBUTING 4. A copy of the approved erosion and sediment control plan shall be maintained on the site at IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF DIVERSION DIKES. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST
DRAINAGE AREA IS EQUAL TO OR GREATER THAN THREE ACRES. THERE MUST BE SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY FOR THE all times. CONSTRUCTION ACTIVITIES, ALL AREAS W/LL RECEIVE A PERMANENT VEGETATIVE COVER. STEP WITH ANY LAND DISTURBANCE ACT70TY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE
CONSTRUCTION OF A TEMPORARY IMPOUNDMENT. 5. Prior to commencing land disturbing activities in areas other than indicated on these plans TEMPORARY SEEDING LAND DISTURBANCE TAKES PLACE.
3.18 OUTLET PROTECTION: (including, but not limited to, off -site borrow or waste areas), the contractor shall submit a THE ESTABLISHMENT OF A TEMPORARY VEGETA7VE COVER ON DISTURBED AREAS BY SEEDING 6. ONCE ALL THE PHASE I EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE
STRUCTURALLY LINED APRONS OR 0774ER ACCEPTABLE ENERGY DISSIPA77NG DEVCES PLACED AT 774E OUTLETS OF PIPES OR PAVED CHANNEL supplementary erosion control plan to the owner for review and approval by the plan WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND EROSION CONTROL PHASE I PLAN AND THE INSPECTOR HAS APPROVED THE EROSION CONTROL
SECTIONS TO PREVENT SCOUR AT STORMWATER OUTLETS, TO PR07ECT 774E OUTLET STRUCTURE, AND TO MINIMIZE 774E P07EN77AL FOR approving authority. SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE MEASURES, THE CONTRACTOR CAN BEGIN THE MINIMUM GRADING OPERATIONS. STABILIZATION
DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED STORMWATER FLOWS APPLICABLE TO THE OUTLETS OF 6. The contractor is responsible for installation of an additional erosion control measures MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES, AND DIVERSIONS
ALL PIPES AND ENGINEERED CHANNEL SECTIONS Po Y FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO
3.19 RIPRAP: necessary to prevent erosion and sedimentation as determined by the plan approving DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS EXPOSED IMMEDIATELY AFTER INSTALLATION. GRADING ALONG THE PERIMETER OF THE SITE THAT BACKS UP
A PERMANENT, EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE WITH FILTER FABRIC OR GRANULAR UNDERLINING. TO authority. DURING CONSTRUCTION UN77L PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES TO VICTORIAN HEIGHTS I IS OF PRIORITY FOR INSTALLATI0N OF SCRIM FENCE AND LANDSCAPE
PR07ECT THE SOIL FROM THE EROSIVE FORCES OF CONCENTRATED RUNOFF, SLOW THE VELOCITY OF CONCENTRATED RUNOFF WHILE ENHANCING 7. All disturbed areas are to drain to approved sediment control measures at all times during BUFFERING BEFORE ANY OTHER GRADING OPERATIONS.
THE P07EN77AL FOR INFILTRATION, AND TO STABILIZE SLOPES MTN SEEPAGE PROBLEMS, AND/OR NON -COHESIVE SOILS. USE WHEREVER SOIL land disturbing activities and during site development until final stabilization is achieved. CAN BE ESTABL/SHED. 7. PERMANENT OR TEMPORARY SOIL STABILIZAT70N SHALL BE APPLIED TO DENUDED AREAS WITHIN
AND WATER INTERFACE AND THE SOIL CONDITIONS, WATER TURBULENCE AND VELOCITY, EXPECTED VEGETA7VE COVER, ETC., ARE SUCH THAT DUST CONTROL:
THE SOIL MAY ERODE UNDER THE DESIGN FLOW CONDITIONS 8. During de actor sha operations, water will be pumped into er approved filtering device. REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLIT70N AND SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL
3.20 ROCK CHECK DAMS: 9. The contractor shall inspect all erosion control measures periodically and after each runoff- STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT u, ry
producing rainfall event. An necessary repairs or cleanup to maintain the effectiveness of CONSTRUCTION ACTIVITIES• FINAL GRADE BUT WILL REMAIN DORMANT UNDISTURBED FOR LONGER THAN 30 DAYS. n
SMALL TEMPORARY STONE DAMS CONSTRUCTED ACROSS A SWALE OR DRAINAGE DITCH. TO REDUCE THE VELOCITY OF CONCENTRATED P g Y eP P ( ) ¢
STORMWATER FLOWS, THEREBY REDUCING EROSION OF THE SWALE OR DITCH. THIS PRACTICE ALSO TRAPS SEDIMENT GENERATED FROM the erosion control devices shall be made immediately. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND PERMANENT STABILIZAT70N SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR 0
ADJACENT AREAS OR THE DITCH ITSELF, MAINLY BY PONDING OF THE STORMWATER RUNOFF. THIS PRACTICE, U77LIZING A COMBINATION OF REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS, MORE THAN ONE YEAR.
STONE SIZES, IS LIMITED TO USE IN SMALL OPEN CHANNELS WHICH DRAIN 10 ACRES OR LESS 10. All fill material to be taken from an approved, designated borrow area. TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE.
3.31 TEMPORARY SEEDING: 11. All waste materials shall be taken to an approved waste area. Earth fill shall be inert DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF
THE ESTABLISHMENT OF A TEMPORARY VEGETA7VE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL materials only, free of roots, stumps, wood, rubbish, and other debris. DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH THE VESCH. PHASE ll:
PLANTS. TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A 8. TEMPORARY CONNECTIONS FROM THE SEDIMENT BASIN ARE SHOWN ON THE PLAN AND SHALL BE
PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE 12. Borrow or waste areas are to be reclaimed within 7 days of completion per Zoning TEMPORARY DIVERSION DIKE.•
PR07EC77ON TO BARE SOILS EXPOSED DURING CONSTRUCTION UN77L PERMANENT VEGETA7ON OR 07HER EROSION CONTROL MEASURES CAN BE Ordinance section 5.1.28. A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED BUILT AS THE FIRST STEP IN PHASE /L AFTER THESE ADJUSTMENTS TO THE SEDIMENT BASIN ARE 0
ESTABLISHED. 13. All inert materials shall be transported in compliance with section 13-301 of the Code of AREA WHICH DIVERTS OFF -SITE RUNOFF AWAY FROM UNPROTECTED SLOPES AND TO A APPROVED BY INSPECTOR, THE CONTRACTOR CAN BEGIN GRADING THE SITE TO THE CONTOURS
3.32 PERMANENT STABILIZATION. Albemarle. SHOWN ON THE EROSION CONTROL PHASE ll PLAN. p7
THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLAN77NG SEED. TO REDUCE EROSION AND DECREASE STABILIZED OUTLET, OR TO DIVERT SEDIMENT LADEN RUNOFF TO A SEDIMENT TRAPPING 9• PHASE H CONSTRUCTION SHALL INCLUDE BUILDING THE RETAINING WALLS ALONG BERKMAR DRIVE, r
SEDIMENT YIELD FROM DISTURBED AREAS. TO PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTABLE TO 14. Borrow, fill or waste activity involving industrial -type power equipment shall be limited to STRUCTURE. MAXIMUM EFFECTIVE LIVE IS 18 MONTHS. INSTALLING THE ROAD CONNECTION BETWEEN BERKMAR DRIVE AND WOODBURN ROAD AND [`
SITE CONDITIONS AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE
the hours of 7:00am to 9:00pm. co
15. Borrow, fill or waste activity shall be conducted in a safe manner than maintains lateral ROCK CHECK DAMS: INSTALLING THE DRAINAGE STRUC7IJRES.
NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. Y SMALL, TEMPORARY STONE DAMS CONSTRUCTED ACROSS A DRAINAGE DITCH TO REDUCE THE 10. AFTER THE RETAINING WALLS ARE BUILT, THE CONTRACTOR SHALL INSTALL THE DIVERSION 1111111 M
APP MULCHING, support, or order to damage
gtany hazard to persons, physical damage to adjacent land and VELOCITY OF CONCENTRATED FLOWS, REDUCING EROSION OF THE SWALE OR DITCH. LIMITED TO DIKES NECESSARY TO ALLOW DRAINAGE PREVIOUSLY GOING TO THE TEMPORARY SEDIMENT TRAP 00
APPLICATION OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO 774E SOIL SURFACE. TO PREVENT EROSION BY PROTECTING THE SOIL improvements, and damage to any public street because o slides, sinking, rt collapse. TO DRAIN TO THE SEDIMENT BASIN. SEDIMENT TRAP /S TO REMAIN UNTIL DIVERSION DIKES ARE N
SURFACE FROM RAINDROP IMPACT AND REDUCING THE VELOCITY OF OVERLAND FLOW. TO FOSTER THE GROWTH OF VEGETATION BY INCREASING 16. The developer shall reserve the fight to install, maintain, remove or convert to pertinent USE IN SMALL OPEN CHANNELS WHICH GRAIN 10 ACRES OR LESS, • SHOULD NOT BE USED IN
AVAILABLE MOISTURE AND PROVIDING INSULATION AGAINST EXTREME HEAT AND COLD. AREAS WHICH HAVE BEEN PERMANENTLY SEEDED LIVE STREAMS. INSTALLED AND APPROVED BY INSPECTOR TO ROUTE DRAINAGE TO THE SEDIMENT BASIN. �
stormwater management facilities where applicable all erosion control measures required
SHOULD BE MULCHED IMMEDIATELY FOLLOWING SEEDING. AREAS WHICH CANNOT BE SEEDED BECAUSE OF THE SEASON SHOULD BE MULCHED 11. PERMANENT OR TEMPORARY SOIL STABILlZA770N SHALL BE APPLIED TO DENUDED AREAS WITHIN M
USING ORGANIC MULCH. MULCH MAY BE USED TOGETHER WITH PLAN77NGS OF TREES, SHRUBS, OR CERTAIN GROUND COVERS WHICH DO NOT b this lanre regardless of the sale of an lot, unit, building or other portion of the ro ert . STORM DRAIN INLET PROTECTION:
Y P g Y g Po P P Y SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE TEMPORARY SOIL 0!'IT
PROVIDE ADEQUATE SOIL STAB/L/ZA77ON BY THEMSELVES, CAN BE USED IN CON✓UNC77ON WI7H TEMPORARY SEEDING. 17. Temporary stabilization shall be temporary seeding and mulching. Seeding is to be at 75 THE INSTALLATION OF VARIOUS KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS STABIL/ZAT70N SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT
337 TREES. SHRUBS VINES & GROUND COVERS: lbs/acre, and in the months of September to February to consist a 50150 mix of Annual OR CURB INLET STRUCTURES PRIOR TO PERMANENT STABILIZA7ION OF THE DISTURBED AREA; N
FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. 1
STABILIZING DISTURBED AREAS BY ESTABLISHING VEGETATIVE COVER WITH TREES, SHRUBS, VINES, OR GROUND COVERS. TO AID IN STABILIZING Ryegrass and Cereal Winter Rye, or in March and April to consist of Annual Rye, a May LIM17ED TO DRAINAGE AREAS NOT EXCEEDING ONE ACRE, AND NOT INTENDED TO CONTROL PERMANENT STABILIZAT70N SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR M I ' � 7
SOIL IN AREAS WHERE VEGETATION OVER THAN TURF /S PREFERRED, TO PROVIDE FOOD AND SHELTER FOR WILDLIFE WHERE WILDLIFE HABITAT IS through August to consist of German Millet. Straw mulch is to be applied at 80lbs/100sf. LARGE, CONCENTRATED STORMWATER FLOWS. MORE THAN ONE YEAR. Z Lu
DESIRABLE. APPLIES IN AREAS WHERE TURF ESTABLISHMENT IS DIFFICULT, ON STEEP OR ROCKY SLOPES WHERE MOWING IS NOT FEASIBLE, N
WHERE ORNAMENTALS ARE DESIRABLE FOR LANDSCAPING PURPOSES AND WHERE WOODY PLANTS ARE DESIRABLE FOR SOIL CONSERVATION OR
Alternatives are subject to approved by the County erosion control inspector. TEMPORARY SEDIMENT TRAP: N Q
TO ESTABLISH WILDLIFE HABITAT. 18. Permanent stabilization shall be lime and fertilizer, permanent seeding, and mulch. A SMALL PONDING AREA, FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A STONE PHASE Ill: J
3.36 BLANKET MATTING: Agricultural grade limestone shall be applied at 90lbs/1000sf, incorporated into the top 4-6 OUTLET ACROSS A DRAINAGE SWALE, TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL 12.ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR Q
INSTALLATION OF A PROTEC7VE COVERING OR A SOIL STABILIZA7ION MAT ON A PREPARED PLAN77NG AREA OF A STEEP SLOPE OR CHANNEL TO inches of soil. Fertilizer shall be applied at 1000lbs/acre and consist of a 10-20-10 nutrient DISTURBED AREAS FOR ENOUGH TIME TO ALLOW MOST TO THE SUSPENDED SOLIDS TO SETTLE CAN REMOVE THE SEDIMENT BASIN. NO ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AREAS > C_
AID /N THE CONTROLLING EROSION ON CRITICAL AREAS. mix. Permanent seeding shall be applied at 180lbs/acre and consist of 95% Kentucky 31 or OUT MAX/MUM EFFECTIVE LIFE IS 18 MONTHS. ARE STABILIZED AND THE INSPECTOR GIVES PERMISSION. AT THE TIME OF TEMPORARY SEDIMENT -
3.38 TREE PRESERVATION AND PROTECTION:0-5%PROTECTION OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION ACTIVITY. TO ENSURE applied
Fescue and 100s Perennial Ryegrass bj Kentucky Bluegrass. Straw mulch o to be TEMPORARY SEDIMENT BASIN : BASIN #1'S REMOVAL AND THE INSTALLATION OF THE PERMANENT STORM SEWER SYSTEM, THE J Q
applied at SOlbs/100sf. Alternatives are subject to approved by the County erosion control CONTRACTOR SHALL REMOVE THE TEMPORARY BARREL CONNECTION INTO PERMANENT STR-3 AND J z
THE SURVIVAL OF DESIRABLE TREES WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WATERSHED PROTECTION, A TEMPORARY BARRIER OR DAM WITH CONTROLLED STORMWATER RELEASE STRUCTURES WHICH IS
LANDSCAPE BEAUTIFICATION, DUST AND POLLUTION CONTROL, NOISE REDUCTION, SHADE AND 07HER ENVIRONMENTAL BENEFITS WHILE THE LAND inspector. PLUG ITS OPENING WA TERRGHT.0 _ , ^
FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. IT V'
IS BEING CONVERTED FROM FOREST TO URBAN -TYPE USES. APPLIES IN TREE -INHABITED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES 19. Maintenance: All measures are to be inspected weekly and after each rainfall. Any damage 13. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND � J
IS USED TO DETAIN SEDIMENT -LADEN RUNOFF FROM DRAINAGE AREAS 3 ACRES OR GREATER \ 0
339 DUST CONTROL: or clogging to structural measures is to be repair immediately. Silt traps are to be cleaned SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM (n
REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND CONSTRUCTION ACTIVITIES TO PREVENT FOR ENOUGH TIME TO ALLOW MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT IT CAN BE
when 50% of the wet storage volume is filled with sediment. Al] seeded areas are to be ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. w 0�
SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY reseeded when necessary to achieve a good stand of grass. Silt fence and diversion dykes CONSTRUCTED ONLY WHERE THERE IS SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY 14.ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 �
PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. DUST CONTROL MEASURES SHALL BE EMPLOYED TO which are collecting sediment to half their height must be cleaned and repaired MAX/MUM EFFECTIVE L/FE /S 18 MONTHS UNLESS DES/GNED AS A PERMANENT POND BY A DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER v'
PREVENT SURFACE AND AIR MOVEMENT OF DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH THE VESCH. immediately. g g P QUALIFIED PROFESSIONAL. NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED O F__ z
20. All temporary erosion and sediment control measures are to be removed within 30 days of OUTLET PROTECTION: SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY J = 0
1992 332 final site stabilization, when measures are no longer needed, subject to approval by the THE INSTALLATION OF RIPRAP CHANNEL SECTIONS AND/OR STILLING BASINS BELOW STORM MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND I'► U
TABLE 331-A County erosion control inspector. DRAIN OUTLETS TO REDUCE EROSION AND UNDER-CUT7NG FROM SCOURING AT OUTLETS AND TO SED/MEN TAT/ON. Q `/
II
21. This plan shall be void if the owner does not obtain a permit within 1 year of the date of REDUCE FLOW VELOCITIES BEFORE STORMWATER ENTERS RECEIVING CHANNELS BELOW THESE = w Z
LUiRVG REQUIREMENTS a royal. (Water Protection Ordinance section 17-204G.
TABLE 332-D FOR TEMPORARY SITES PP (w ) OUTLETS. (� W
SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA 22. Permanent vegetation shall be installed on all denuded areas within nine (9) months after CULVERT INLET PROTECTION: W I = 2:
Recommended Application the date the land disturbing activity commenced. (Water Protection Ordinance section 17- .-I p
Total Lbs. pHt Test �Wieatmratr.imcstone 207B) A SEDIMENT FILTER LOCATED AT THE INLET TO STORM SEWER CULVERTS WHICH PREVENTS Y
Per Acre below 3 tom per acre SEDIMENT FROM ENTER/NG, ACCUMULATING IN AND BEING TRANSFERRED BY THE CULVERT. IT SOIL DESCRIPTION L1J Z Q
in
LLJ
Minimum Care lawn ALSO PROVIDES EROSION CONTROL AT CULVERTS DURING THE PHASE OF A PROJECT WHERE 27B-ELIOAK LOAM-2% TO 79 SLOPES THESE DEEP, WELL DRAINED SOILS ARE FOUND ON �__ Q
42to5.2 2tons per acre ELEVAT70NS AND DRAINAGE PATTERNS ARE CHANGING, CAUSING ORIGINAL CONTROL MEASURES HILLSLOPES SLOPES. MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. - I�
- Commercial or Residential 175-200lbs. TEMPORARY SEEDING. TO BE INEFFECTIVE. 7 i./ 06
- Kentucky31 or Turf -Type Tall Fescue 95-100% s2 to Iron per acre LL
� ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED SAFETY FENCE. •
- Improved Perennial Ryegrass 0.5% TaLE3"I-B WITH FAST GERMINATING TEMPORARY VEGETATI0N IMMEDIATELY FOLLOWING GRADING. SELECT70N OF THE A PROTECTIVE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL 27C-ELIOAK LOAM-790 TO 151w SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON Ul O z
- Kentucky Bluegrass 0.5% ACCEPT"MWMPONARYREEDIWPdR MMTERU" SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR AND WILL BE APPLIED TO DISTURBED TIRES THAT MEASURE. HILLSLOPES SLOPES. MODERATE RUNOFF, MTH MODERATELY HIGH To HIGH PERMEABILITY. 0
High -Maintenance Lawn 200-2501bs.
'QUICK REFERENCE FOR Au, REGIONS" WILL NOT BE BROUGHT TO FINAL GRADE WITHIN 30 DAYS. L.L. F--i
Z
ne�u�Dve. r1 R.LtrcJxsl PLANTS SHOULD BE SELECTED APPROPRIATE TO THE SEASON AND SITE CONDITIONS FROM TABLES 331B PERMANENT STABILIZATION. 39D - HAZEL LOAM-157 TO 25X SLOPES. THESE SHALLOW, EXCESSIVELY DRAINED SOILS ARE w U ( )
- Kentucky 31 or Turf -Type Tall Fescue 100% AND 3.31C. NOTE THAT TABLE 3.31B PRESENTS PLANTS WHICH CAN BE USED THOUT EXTENSIVE PERMANENT SEEDING WILL BE APPLIED TO ALL DISTURBED AREAS AS PER THE PERMANENT HILLSLOPES MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY.
Sept.1-Feb. lS s�M RM. WIEVALUATION OF SITE CONDITIONS, TABLE 331C PRESENTS MORE IN-DEPTH INFORMAT70N ON THE PLANT STABILIZATION OF THIS EROSION & SEDIMENT CONTROL NARRATIVE.
General Sl%& (3:1 or less) aoremmew-nemmi MATERIALS. LLJ
a so-100 65B - FAIRWEW SANDY LOAM-2% TO 79 SLOPES THESE DEEP, WELL DRAINED SOILS ARE FOUND
Caw(awlu)Rw AFTER CONSTRUCT70N IS COMPLETED, ALL DISTURBED AREAS OF THE SITE WILL BE LIMED,
. Kentucky 31 Fescue 128lbs. (&.� m. .) TO CONTROL EROSION ON BARE SOIL SURFACES, PLANTS MUST BE ABLE TO GERMINATE AND GROW. ON INTERFLUVES. MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY.
Red Top Grass 2 lbs. SEEDBED PREPARATION IS ESSENTIAL. FERTILIZED, AND SEEDED AS PER CURRENT VDOT STANDARDS. THIS SHALL CONSIST OF I—
- Seasonal Nurse Crop • 20 lbs. Feb.16 - Apr 30 A .0 Rye . W - 160 THE FOLLOWING J L U
150lbs. OAtimm^'"-B^n,m' AN EVALUATION SHOULD BE CONDUCTED TO DETERMINE IF LIME IS NECESSARY FOR TEMPORARY SEEDING. TOP SOIL - 2- DEPTH STORMWATER RUN-OFF CONSIDERATIONS. �
TABLE 331A MAY BE USED TO DETERMINE THE ACTUAL NEED ALONG WITH SUGGESTED APPLICATION LIME - 2 TONS ACRE
Low -Maintenance tteyt.A„831 ce,meebwia w /
1surbiiam) RATES. FERTILIZER - 600 LBS/ACRE OF 15-30-15 THETORM WA
SEDIMENT
MANAGEMENT. THE STORM ETER RUNOFF FROM THIS PROJECT DRAINS TEMPORARILY T
- Kentucky 31 Fescue 108 lbs. SEED - ERNST 5311 CONSERVATION SEED MIX - ERNMX-114 45 LBS ACRE PENNLAWN THE SEDIMENT BASIN &TRAP. THE SEDIMENT BASIN AND THE SEDIMENT TRAP WILL BE REMOVED AFTER Q
- Red Top Grass 21bs• GENERAL SLOPE (3:1 OR SLOPE OR LESS) TOTAL LBS PER ACRE FERTILIZER SHALL BE APPLIED AS 600 LBS/ACRE OF 10-20-f0 (14 LBS/1,000 SQ. FT.) OR EQUIVALENT ( / THE DEVELOPMENT OF THE VICTORIAN HEIGHTS PROJECT Seasonal Nurse Crop* 0KENTUCKY 31 FESCUE 128 Les NUTRIENTS. LIME AND FERTILIZER SHALL BE INCORPORATED INTO THE TOP 2 TO 4 INCHES OF THE SOIL CREEPING RED FESCUE, 37.5 LBS/ACRE ARG/LE KENTUCKY BLUEGRASS, 37.5 LBS/ACRE
P' 201bs RED TOP GRASS 2 LBS IF POSSIBLE. PARK KENTUCKY BLUEGRASS, 15 LBS/ACRE ANNUAL RYEGRASS & 15 LBS/ACRE PLEASURE C-D
- Crowtwetch •• 20 lbs. SEASONAL NURSE CROP 20 LBS
150lbs. 150 Les IF THE AREA HAS BEEN RECENTLY LOOSENED OR DISTURBED, NO FURTHER ROUGHENING IS REQUIRED. PERENNIAL AFTER THESE AREAS ARE STABILIZED THEY WILL BE MOWED AND MAINTAINED ov�_ N
• Use seasonal nurse cropin accordance with seeding dates as stated below: SEASONAL NURSE CROP
WHEN THE AREA IS COMPACTED, CRUSTED, OR HARDENED, THE SOIL SHALL BE LOOSENED BY DISCING, ON A REGULAR BASIS.
g TEBRUARY 16 THROUGH APRIL ANNUAL RYE RAKING, HARROWING, OR OTHER ACCEPTABLE MEANS. TRACKING WITH BULLDOZER CLEATS IS MOST MAINTENANCE.•
February 16th through April ...................... Annual Rye MAY 1 THROUGH AUGUST 15 TOxTAIL MILLET EFFECTIVE ON SANDY SOILS. THIS PRACTICE OFTEN CAUSES UNDUE COMPACT70N OF THE SOIL SURFACE, IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED DAILY
May 1st through August 15th ..................... Foxtail Millet AUGUST 16 THROUGH OCTOBER ANNUAL RYE ESPECIALLY IN CLAYEY SOILS, AND DOES NOT AID PLANT GROWTH AS EFFEC77VELY AS OTHER METHODS U
August 16th through October ...................... Annual Rye NOVEMBER THROUGH FEBRUARY 15 WINTER RYE OF SURFACE ROUGHENING AND AFTER EACH SIGNIFICANT RAINFALL. SPECIFIC ATTENTION WILL BE GIVEN TO THE
November through February 15th ................... Winter Rye FOLLOWING ITEMS.- I -
NOTES: SEED SHALL BE EVENLY APPLIED WITH A BROADCAST SEEDER, DRILL, CUL77PACKER SEEDER OR A. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN w
" Substitute Sericea lespedeza for Crownvetch east of Farmville, Va. (May 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL HYDROSEEDER. SMALL GRAINS SHALL BE PLANTED NO MORE THAN 11 INCHES DEEP. SMALL SEEDS, SUCH ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. o w
through September use hulled Sericea, all other periods, use unhulled Sericea). TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32. B. ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT cc M
If Flatpea is used in lieu of CYownvetch, increase rate to 30lbs./acre. All legume AS KENTUCKY BLUEGRASS, SHOULD BE PLANTED NO MORE THAN INCH DEEP. OTHER GRASSES AND WILL PREVENT PROPER DRAINAGE. IF THE GRAVEL /S CLOGGED BY SEDIMENT, THE m
seed must be properly inoculated. Weeping Lovegrassmay beadded toany slope 2. SEEDINGS To BE MULCHED IMMEDIATELY UPON COMPLETION LEGUMES SHOULD BE PLANTED FROM 1j INCH TO J DEEP. GRAVEL WILL BE REMOVED AND CLEANED, OR IT WILL BE REPLACED. JOB No.
or low -maintenance mix during warmer seeding periods; add 10-20 lbs./acre in of SEED APPLICATION, IN ACCORDANCE w/ VESCH srD 3.35. SEED/NGS MADE /N FALL FOR WINTER COVER AND DURING HOT AND DRY SUMMER MONTHS SHALL BE C. ALL SILT FENCE BARRIERS W/LL BE CHECKED REGULARLY FOR UNDERMINING OR 202196
mixes. MULCHED ACCORDING TO MULCHING, STD. & SPEC. 335, EXCEPT THAT HYDROMULCHES (FIBER MULCH) DETERIORATION OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE
PERMANENT SEEDING SCHEDULE O REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHED HALF WAY TO THE SCALE
PS WILL NOT BE CONSIDERED ADEQUATE. STRAW MULCH SHOULD BE USED DURING THESE PERIODS AS NOTED
No SCALE TOP OF THE BARRIER.
AREAS WHICH FAIL TO ESTABLISH VEGETATIVE COVER ADEQUATE TO PREVENT RILL EROSION WILL BE D. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS
(STD. & SPEC. 3.32 OF VIRGINIA EROSION &
SEDIMENT CONTROL HANDBOOK, 3RD ED.) @_ RE -SEEDED AS SOON AS SUCH AREAS ARE IDENTIFIED. MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED. SHEET NO.
3
Paved construction entrance for erosion control plans 1992 3.05 1992 3.05 1992 3.07 �TH OF
STONE 70' YIN. CONSTRUCTION OF A SILT FENCE CONSTRUCTION OF A SILT FENCE GRAVEL CURB INLET SEDIMENT f�G�
CONSTRUCTION I� (WITH WIRE SUPPORT) (WITHOUT WIRE SUPPORT) FILTER SCOTT R. LINS'ZI
ACCESS 3' SY-2A ASPHALT TOP
COURSE 1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS. 1. SET THE STAKES. 2. EXCAVATE A 4"X 4" TRENCH
77C 77C E%ISTINC TRENCH UPSLOPE ALONG THE LINE UPSLOPE ALONG THE LINE OF U No. 35791 .�
PAVEMENT OF POSTS. STAKES.
6'MAX. `f-� A✓�jO� 06/07/21iv�'
6- MN 2-A AGGREGAIE BASE �-'y�y i % �s`%IVAL
PSQEILE z
_ / /-%f -� 60
w 70' MIN. h IIII I 1 IIII
FzoTr
::C'N},14JCIU� ASPHALT PAVED
WASHRACK / _ / III L III // /\ O
E%ISTING / / I / 3. STAPLE FILTER MATERIAL 4. BACKFILL AND COMPACT
2% PAVEMENT FLOW III � I ' I III �D TO STAKES AND EXTEND THE EXCAVATED SOIL.
12' MIN.• o IT INTO THE TRENCH. N
r - GRAVEL FILTER 12' O
t - 3. ATTACH THE FILTER FABRIC TO THE WIRE 4. BACKFILL AND COMPACT THE RUNOFF WATER WIRE MESH
C
POSITIVE DRAINAGE FENCE AND EXTEND IT INTO THE TRENCH. EXCAVATED SOIL. j - r
FILTERED WATER
-MUST EXTEND FULL WIDTH Le TO SEDIMENT
OF INGRESS AND EGRESS _ OPERATION _
TRAPPING DEVICT d 0
IIII U)
FLOW / I IIII - - U) Do x
-III III U�D- vd z In L
O
12 MIN. ^r DR/DNACE /� IIII /� ` - IIII SHEET FLOW INSTALLATION SEDIMENT IIII o a U)
_ I SEDIMENT
DEVICE / �/ -t (PERSPECTIVE VIEW) O o
FLOW CONCRETE GUTTER � U LU.3
CURB INLET 11J K
FILTER CLOTW III p. II"'I
�
SECTION A -A = III - A FLOFI F B A ��\\ z o
°
EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. - - - / SPECIFIC APPLICATION lq W m
e
A Ingla1Maa wale 1111110 tap of I nittic UlAa Ted NIIII 3 IIMIWIIIRII I Rich balk ocA �, j �Y+11u w X D
_ THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS J
FILTER FABRIC o
ItIR01i cah! SllpphLlY a wash 11U.ae Llllll a Ih3111E1 7 of t WLhe% IOI adttpnle �, \\ Uj
WHERE PONDING IN FRONT OF THE STRUCTURE IS NOT LIKELY TO CAUSE
LouttlAul ple6Ntae. Wadij wale unlit Ile L:Mlled 3R'3% Donn the NIN.."He to atl INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED 'a-'
appl o%,eti seftt-- ales to temoVe 6e(tallellt .All iedD11eI11 >ILIII be 111 ft'911H1 1f0111 II L POINTS A SHOULD BE HIGHER THAN POINT B. AREAS.
eutamM stouu t6 ams. ditches of AA-atacomsc� wIRJ DRAINAGEWAY INSTALLATION 'Z-' o
- (FRONT ELEVATION) • GRAVEL SHALL BE VDOT #3, #357 OR 5 COARSE AGGREGATE.
0
PAVED WASH RACK
Source: Adapted from Installation of Straw and Fabric Filter
Source: Adapted from Installation of Straw and Fabric Filter °
'^A I Barriers for Sediment Control, Sherwood and Wyant Plate 3.05-1 Barriers for Sediment Control. Sherwood and Wyant Plate 3.05-2 Source: Va. DSWC Plate 3.07fi o,
C
a
a
1992 3.08 1992 3.18 1992 3.36 1992 3.38
0
SILT FENCE CULVERT INLET PIPE OUTLET CONDITIONS TYPICAL ORIENTATION OF FENCING AND ARMORING
PROTECTION A A TREATMENT - > o
ENDWW.L (SOIL STABILIZATION BLANKET) °
/^ SHALLOW LU r4 N
3d0 SLOPE I a n E
o -
____ ________ _________ _r_ ______ ____ dD „' I LO -
�T_T_. _ •. NE ING PRO SLOPES, STRIPS OF O
TOE OF Flu - I - PIPE OUTLET TO FIAT c
NETTING BE PROTECTIVE COVERINGS DRP ONE` I
+F- CULVERT AREA WITH NO DEFINED I'� CLAY BE APPLIED ACROSS 1�I,
I CHANNEL THE SLOPE.
PLAN VIEW
I I i ■ �
3
- SNOW FENCE
I
I I L a BERM I U
I I WHERE THERE IS A BERM AT THE TOP OF THE SLOPE, /
I I BRING THE MATERIAL OVER THE BERM AND ANCHOR IT0 R BEHIND THE BERM.
AM
N
-- d thJl f 0
N
Ela r
� TOE OF FILL SECTION A -A FILTER CLOTH KEY IN e--e^; RECOMMENDED FOR ENTIRE PERIMETER SLOPE `. °
Pill r" IS(yii\ 3
S• BOARD FENCE
SILT FENCE
O
�DISTANCE IS B' MINIMUM IF RA ON SLOPES, APPLY TAM OW PROTECTIVE COVERING PARALLEL CORD FENCE �I
IS TOWARD EMBANKMENT �- TO THE DIRECTION OF FLOW d
AND ANCHOR SECURE-Y.
L ROW A ado (MIN.) PLASTIC FENCE co
CORRECT METHODS OF TREE FENCING Nt,
OPTIONAL STONE COMBINATION* dyQ------------',-= N
PIPE OUTLET TO WELL
DEFINED CHANNEL"""• T \ _ 4.�..�;... ;,.. I I / 6) z
1 RIAL DOWN TO A LEVEL AREA BEFORE
0•
I.t.6• PLAN VIEW TERMINATIN
BRING MATE G THE INSTALLATION. TURN THE END .e, .,,�, I 1
UNDER 4" AND STAPLE AT If INTERNALS. `'V:
0 7. -. < /'J^ 1QJ1 �o
FLOW N DITCH FLOW _ > L.L O
2.5' I' d IN DITCHES, APPLY PROTECTIVE COVERING ..
_ PARALLEL TO THE DIREC110N OF FLOW. Lij
SECTION A -A
" T USE CHECK SLOTS AS REQUIRED. AVOID Q
MINING MATERIAL IN THE CENTER OF 1
FILTER CLOTH KEY IN B--B': RECOMMENDED FOR ENTIRE PERIMETER THE DITCH IF AT ALL POSSIBLE. M A^ /� \V - piiW'aEF� J 1 °
NOTES: 1. APRON LINING MAY BE RIPRAP. GROUTED RIPRAP. GASTON CLASS I RIPRAP pow
i J_ J o
BASKET, OR CONCRETE. rr VDOT 13, #357 OR #5 COARSE AGGREGATE 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED am CORRECT TRUNK ARMORING Mir,> V / p
TO REPLACE SILT FENCE IN " HORSESHOE " WHEN USING PLATES 3.18-3 AND 3.18-4. ON AXN L.L ! /� \ c/ '_
HIGH VELOCITY OF FLOW IS EXPECTED 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT TRIANGULAR BOARD FENCE CO /
LESS THAN 8 INCHES. w F- o
Source: Adapted from VDOT Standard U) Z 0
Sheets and Va. DSWC Plate 3.08-1 Source: Va. DSWC Plate 3.18-1 Source: Adapted from Ludlow Products Brochure Plate 3.36-1 Source: Va. DSWC Plate 3.38-2 O 0 3
U
(1�
1992 3.01 1992 3.07
TEMPORARY DIVERSION DIKE 199z 3.14 �, `/ Q 1_I w o
= WCL
SAFETY FENCE _
SILT FENCE DROP INLET EXAMPLE PLAN VIEWS OF U 2
PROTECTION BAFFLE LOCATIONS IN Y 7 0MR MI
LIJ
o
memo:2 X 4- WOOD FRAME DROP INLET Compacted Soil SEDIMENT BASINS W ` r ) T
r V� WITH GRATE 1 Q E
■■■ ■r■ ® 16' min I D 2 D NO SCALE - - 0
ONE �■� LS' MAX. FRANC _. __ _
. � - � �-� -Flow
-.:,: c::iat'r I INFLOW
\ I I II I I I I II I I •; . • . . ,-..<.; , .R I1I�jIIIDIIII"jIFI- I I����
o 'IIIII�� `\`.��`` ' RISER LY
W511111L01111 O l.Wj
3' MIN. \ D/2 W 1 I 1
� U) Z
4.5' min. NORMAL POOL \ L = TDISTANCE FROM / 1 0 z
THE
POINT OF INFLOW LL `/
n
AROUND THE BAFFLE TO
< , I I GATHER
` THE RISER. �I IR Ir 1
a.,: .:..r ' <; `.' EXCESS \ Z
AT CORNERS LU/ J
U V NORMAL POOL V J
O
PERSPECTIVE VIEWS 0/2 RISER
-- J w r
STARE I ` �-� O
PERSPECTIVE VIEW J1t� a
FABRIC E Q j
UUU NORMAL POOL RISER INFLOW (D v 3
w
IN. J� (0 N
G BAFFLE �. 1 v
i, i
ELEVATION OF STAKE AND 12 c
FABRIC ORIENTATION DETAIL A �Z'` 2
L= L1 «L2 � E
J: INFLOW U
SPECIFIC APPLICATION 7D
SHEETS OF 4' % IV X 1/Y EXTERIOR tr ^O w
PLYWOOD OR EQUIVALENT
"A"`ial n Ail THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE _ O
.rm'a.ul ! Li m„•„ o�\o uE INLET 'DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER RISER CREST ELEVATION a U, �
6 THAN 57 WHERE THE INLET SHEET OR OVERLAND FLOWS NOT
5' MIN. JOB NO.
EXCEEDING I C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT 4' i
PERSPECTIVE VIEW PERSPECTIVE VIEW APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS iI ii OPoR S FOUND SEATW�E 202196 °
PLASTIC FENCE METAL FENCE IN STREET OR HIGHWAY MEDIANS. LEAST 3' INTO THE GROUND. °
e•
SCALE °
AS NOTED o
Source: Adapted from Conwed Plastics and Plate 3.01-1 Source: N.C. Erosion and Sediment Control a
VDOT Road and Bridge Standards Planning and Design Manual 1988 Plate 3.07-1 Source: USDA-SCS Plate 3.14-6 SHEET NO. °
4 s
EROSION CONTROL * IIOOKHANDBOOK CATEDIMENTNUMCONTROLSPECI
SA moo- SAFETY FENCE 3.01 I Sediment Trap design #1 FI O / / GRAPHIC SCALE I drainage area (acres)(<3ac) 1.51 '' VARIABIF ��Gl
CE CONSTRUCTION ENTRANCE 3.02 I
/ 30 0 15 30 60 120 trap volumes: O1bGIGROUNAJ_CREST OF STONE WEIR •iARIARLE' OSCOTT R. LINS
I elevation (ft) area (so wlume(cf) volume(cy) �. q. U No. 35791 ,1,
SF SILT FENCE 3.05 NOTE: MEASURES/Imlz�,
TENDEDTOTRAP 496 1049 0 0.0 -
SEDIMENT SHALL CONSTRUCTED AS A FIRST I 498 1989 2,988 110.7 DRYSTORAGE - H vAxua i 6p 06/07/21 t4
lP STORM DRAIN INLET PROTECTION 3.07 STEP WITH ANY I/AND DISTURBANCE ACTIVITY IN FEET) 500 3059 7,998 296.2 odd ti
AND SHALL BE ,v ADE FUNCTIONAL BEFORE / 1 inch = 30 It, 0 0 0 0.0 sSIONAL ECG
UPSLOPE LAND TAKES PLACE. 0 0 0 0.0 WETSTORAGE
u uaL
ClP CULVERT INLET PROTECTION J.08 / (EMMED) FLTER CLOTH ORIGINAL
__V cRG .O
ELLV.
DD �� TEMPORARY DIVERSION DIKE 3.09 Sediment Trap design #2 I wet storage: .SEE III 3.13-1 COARSE AGG(EEGAIE_ CUSS I RP P
I wet storage required (cy) (67*DA) 101.2
TEMPORARY ROW DIVERSION J.
® / drainage area (acres) (< 3 ac) 0.15 '• VARDAIE bottom of stone weir (ft) 497.83
trap volumes: CREST OF STONE WEIR RDyE wet storage provided at this elevation (cy) 101.2
elevation ft areas volume(co volume(cy) GROUND
O (so (fl (Y) ELEV. slope of wet storage sides 2:1
0SEDIMENT TRAP 3.13 514 76 0 0.0 weir length (ft) (6xDA) 9.1
0
/ 516 324 371 13.8 DRYSTORAGE vAwaF I dry storage: bottom of trap elevation (ft) 496
SB SEDIMENT BASIN 3.14 518 700 1,371 50.8 ` - r \ dry storage required (cy) (67*DA) 101.2 bottom trap dimensions: 10'x99'
/ \ / 0 0 0 0.0 l I ` i crest of stone weir 499.0 top of dam elevation (ft) 500 z
/ 0 0 0 0.0 WET STORAGE \ l d storage provided at this elevation c 101.2 to width of dam ft 10, o
OP OUTLET PROTECTION 3.18 \/ (EXGVAIED) ` i / \ dry g p (Y) p ( )
Y / FLIER cLDTN GROUo `l / \ \ 1 slope of dry storage sides 2:1 top trap dimensions 2TX115' U)
wet storage: ,SEE PUTE 3.' 3-I CMREE ACGPE"n CLASS I R~ V A M
RR RIPRAP 3.19 j� y n Co
r/ \ wet storage required (cy) (67*DA) 10.1 �' A I A. L `• o
bottom of stone weir ft 515.46 I \ `< \ ` m
TEMPORARY SEEDING 3.31 l \ at f O ~LU
if wet storage provided at this elevation (cy) 10.1 U O'
PS PS PERMANENT SEEDING 3.32 \ slope of wet storage sides 2:1 A I \ \ �"'� w
/ I weir length (ft) (6xDA) 5.0 \ \ V / \ �, o Z
f / dry storage: bottom of trap elevation (ft) 514 °� \ / A A A �.,� p
MU MU MULCHING 3.35 dry storage required (cy) (67*DA) 10.1 bottom trap dimensions: 4'X19' \ I \\ \ \ \ \ v_) w
I / I crest of stone weir 517.0 top of dam elevation (ft) 518 \\ ) \- I \ \ / >
TP TREE PROTECTION 3.38 I \ \ \ � w
O \ dry storage provided at this elevation (cy) 10.1 top width of dam (ft) 6' r \ , W
\ \ slope of dry storage sides 2:1 top trap dimensions 20M5' I J I % �� � <
DC OC DUST CONTROL 3.39 / r / ••
--/ _ _
BM + + + + + SOIL STABILIZATION BLANKET 3.36 \ \ \ \ _ _ ✓ J / \ / I / / l / - -
f TMP 45-68C2
2.756 AC
(APPROX) PROPOSED TEMPORARY
/ v I x' TMP 45-68ESTOCKPILE SURROUNDED
CONTRACTOR STAGING AREA
/ APPROX / 183 AC
WITH FUELING TANK,, DUMPSTER,
\ i BY SILT FENCE �-
il X =AND PORTA-POTTIES
j
X- X- X- X_ X,
F _SIF
��-��/ / //wIWIRE
V `---- -
NOTE: SILT FENCE, SAFETY
- _
TS SUPPORT FENCE, AND TREE PROTECTION
WQQpBURN LANE6� OFF ���� WASH RACK / // //SHALL BEINSTALLED ATLIMITS
-in- / � �� / OF DISTURBANCE. THSE ARE
on F �
MU // PURPOSES. DRAINAGE DIVIDES
_ r
CE iz xo / / ATTHE LIMITS
FLOW DIRECTION 1 / M • ' / OF DISTURBANCE OR
X I N
_ / NOTE: THIS CONSTRUCTION ENT1ANCE 5 L DIVERSION DIKE 7
ARROW (TYP.) I 1 0)
/ / \ INSTALLED OPERATED AND MAINTAINED BY THE
1 NOTE: CONTRACT6T0 MU -\ \ 1 I / PROPOSED LIMITS OF M
l
- _ I 1 \ / j CONTRACTOR. ALL CONSTRUCTION TRAFFIC IN THIS / ' , \ T
ENSURE POSTIVE � /
- - - - - - - - - - \ / x / AREA HALL U IeIZETNSTRUCTION ENT ANCE.
DRAINAGE ALONGJ / D �> DISTURBANCE(TYP.) 1 C'7DIVERSION DIKE -� ^' - /�--- SOIL TYPE 65B Av� ���Nf L1J
SOIL TYPE 6 B ' rr // / / �
/ 5 / / / r /� \� i/ �
- _ \ - a
CONCRETE WASH TP -� Z
OUTAREAW"0
✓ _� v s / /i >
/
f /
- - -
PROPOSED LIMITS
OF DISTURBANCE (TYP.) --------_�' \ A A A\ DRAINAGE DIVIDE (TYP.. WH M/ /' ✓/ �/ $ ✓ k9 J C�
\ -- --J / i �� // ice° / 1� �, k96 / i/ SAF / G
O
DC /� i' /X/ / / r OILTYP 2 C �' �/ //
�P \\ AREA TO -SEDIMENT BASIN = z.og ACRES -
_ C
_-----'� / AREA TOSEDIWENTTRAP=15iACRES / / 1° ST o° / SOIL TYPE 27B / ' / / / //L11
01 �J x,
\�,� \\ \ /. J^ J / /i/ =� 1� POF � O
\ t i PROPOSED FENCE \ - - / / 5 / / / / ' / �O /
v --� ��♦ oPM�' // / J Z V
AROUND SEDIMENT 1 \ / / / , / / \,
v o / BASIN ♦ i
SOIL TYPE �� �' /r / // � � /' ✓ I �I Z
/ I BOUNDARY (TYP.) �� - / �♦ r r /
/ SOIL TYPE 27C / / / r i / / / PROPOSED FENCE �' X U
SOIL TYPE z7B 532. , . / / / / / /' / f5C / X \ '
I I AROUND SEDIMENT
w/WIRE 1 ,�► \ \ - - TRAP
♦ SOIL z C A �/ / / / - ' / / /
\ _ ., M � / - / / / / CIP XXX \ Z
\ SUPPORT\ IT ✓ 7 \ l \ t %`�-53° .... / / - - - - - - - / / i \ ,N IP \ LU z
\ ♦ ♦, / \ r5z8 % X ... - - , ~ - - - - - - - - - - NSURE POSTIVETOR TO, X X%c \ LJJ
x
X \
/ \ ♦ ♦ _-J-M�U---� Sz4` 52
x ..�� .. x ../ / / / / � / � / � _ _ _ � DD DRAINAGE ALONG X X X . i � \ � � In
ti �♦ �� r 522 a.. x > = W= / / / / - - - - _ _ - DIVERSION DIKE �� , IP - - - - - LL I
�7 -�
Ul
-AREA TO SEDIMENT \ 1 \ \ / ♦ B Sa8 5zo 1 / // / / / j SOILTYPE 39D \' \/ X�,%x'/ / \ \� / - - - \/ J F_
v s� s�\ S♦ 1i5 v - - ' \
LU
TRAP =o.iSACRES 5o?� L
U
\ - - - - - - _ I
-
s,,� \ ,, TYPE 310F DA -- 522_5 ° ¢4 57•z -¢o _�So8 5°6 _ / \ -\� / / =�=X J._ O
SAF
\ - Po --- 18 x-x-x� / L1J
j \ __• / _ - X - - _� - ` ��- / /
P 'low
6'WIDE _ - - 5 _�� _ \\\\ \ I I I III <
TOP OF - - (y - _ - , Y _ �V
DAM - - - 1 X \ / ' / / / / �. � / I I
00
0000
5y6_
PROPOSED io' CLASS I RIPRAP EMERGENCY -
TEMPORARY BARREL
SPILLWAY W/ FILTER FABRIC UNDERLAYMENT (204 LF Qa 2.7%, 11=513.5 -, 10=5o8)IP - / / 'r / ti% �D \\ / ✓ \I \ ' / /
(DEPTH = 2') 4:i SIDE SLOPES & CREST ELEV.=524.00 - -
_ ��• �,.. - -- -_---------�--- -----1---X --\ -A1/-� V \v vV \
wPROPOSEDFENCE
- � AROUND SEDIMENT 0Lu
TRA- - - - a m
-JOB NO.
- - - - - wx 202196
�/' _--- ,---- - - ----- - - - - -- /I /I / v
--- _- _--- - - - - -V A / /� / �� SCALE
--�-----_--- / / / �----- =3
- - / / / WMH) I / / / / / / r///� ;I Av �� SHEET NO.
5
EROSION CONTROL * VIRGINIA EROSION & SEDIMENT CONTROL Sediment Basin Design #1 I
HANDBOOK SPECIFICA77ON NUMBER I
OMIN.1'WISFILLT EMERGENCY PI ERGENLY ^` TH O
moF
SA o- SAFETY FENCE 3.01 drainage area (acres) 3.7 2•wITNOMsaluwAY
basin volumes: (using 2' contour intervals) DESIGN NIGH WATER O �
CE CONSTRUCTION ENTRANCE 3.02 elevation (ft) contour area (sf) volume(cy)C (25-YR. STORM ELEV.) volume(cy) I � "
518.00 1010.0 0 °�' GRAPHIC SCALE SCOTT R. LINSZ
------- ------
SF �E SILT FENCE 3.05 MIN. 10- U No. 35791 11,
520.00 2211.0 116 RISER CREST I
522.00 3654.0 331 .,Ry. STORAGE DEWATERINO 30 0 15 30 60 120 I �p 06/07/21 t4
lP STORM DRAIN INLET PROTECT7ON 3.07 0Eb10E O�
524.00 5203.0 658 WET sroRAGE �SSI gt1�ti
.....................:..::......:.:.: _
526.00 6853.0 1103 ONAL
ClP CULVERT INLET PROTECTION 3.08 0.00 0.0 0 ( IN FEET) I
SEDIMENT STORACUT REDUCED
1 Inch 30 ft. w
/�/� (• WET' STORAGE REWCED
0,W 0.0 O TO J• C.Y./ ACRE) I
0�10 TEMPORARY DIVERSION DIKE 3.09 I z
I I o
®-►� TEMPORARY ROW DIVERSION 3.11 wet storage: 0
wet storage required (cy) (67'DA) 248 design high water 524.00 _ o
dewatering orifice elevation (ft) 521.22 top of dam (ft) 526.00 NOTE: MEASURES INTENDED TO TRAP
0SEDIMENT TRAP 3.13 / - o
wet storage provded at this elevation (cy) 248 top width of dam (ft) 10.0 SEDIMENT SHALL BE CONSTRUCTED AS A FIRST
available volume before cleanout (cy) (34'DA) 126 bottom of basin (ft) 518.0 STEP WITH ANY LAND DISTURBANCE ACTIVITY
SB O SEDIMENT BASIN 3.14 cleanout elevation (ft) 520.07 approx. bottom dimensions: 115'x15' AND SHALL BE MADE FUNCTIONAL BEFORE
distance from cleanout to orifice (ft) (> 1') 1.11 upstream face slope: 2:1 UPSLOPE LAND DISTURBANCE TAKES PLACE. `
V v z 3 OP OUTLET PROTECTION 3.18 downstream face slope: 2:1 p
dry storage:Ln
i
dry storage required (cy) (67•DA) 248 baffles:
RR RIPRAP 3.19 ffles: YES < / \ ^ , \ \ \ o \ 'A U) a
O principle spillway crest (ft) 523.00 length of flow, L (ft) 93 ' \ \ \ I \ Vl Co o
dry storage provided at this elevation (cy) 248 effective width, We (ft) 51 \ \ vf/ \ \ \ I \ 1 1 Z _o s
TEMPORARY SEEDING 3.31 diameter of dewatering orifice (in) 4.0 L / We (baffles required if < 2) 1.8 , I ✓ - \ ` \ \< \ \ w
�J diameter of flexible tubing (in) (orfice+2") &0 u O
� � 1 I \\ � \ O r
PS PS PERMANENT SEEDING 3.32 collars: YES \ I \ \ \ I \ \ \ \ H w
runoff. depth of water at spillway crest (ft) 5 \ \ \ / `�)1 \ \ \ o z
C (use 0.45 for bare earth) 0.45 slope of upstream face (ZA) 2 n\ \ / \ J \ \ \ C) o
MULCHING 3.35 MU MU \ 1 I 0
tc (min) 14 slope of barrel (Sb) 4.90% � 1 � � � I \ \ �\ \ \ \ \ � w
12yr 3.6 Q 2yr 5.9 length of barrel in saturated zone (Ls) 37.32 / ) 1 I \ \ \ w X o
TP TREE PROTECTION 3.38 I \ \ \ W D
125yr 5.3 Q 25yr 9.6 number collars required 2
dimension of permanent collars 3.9x3.9' I r rl \
DC OC DUST CONTROL 3.39
principle spillway: o
C /
available head (ft) 1.00 emergency spillway: YES
BM + + + + + SOIL STABILIZATION BLANKET 3.36 diameter riser (in) 24 required capacity (Q25-Qp) (cfs) 0.0 \ \\ \ I / / / / - -
spillway capacity, Qp (cfs) 13.0 bottom width (ft) 8 TMP 45-68C2-
/ diameter trash rack (in) 36 slope of exit channel (ft/ft) 6% 2.756 AC
barrel length (ft) 204 minimun length of exit channel (ft) 32-
J head on barrel through embankment (ft) 16.00 crest of spillway (ft) 524 (APPROX) / 1 TMP 45-68E
/ diameter of barrel (in) 18
x 2.183 AC
(APPRI')X) v - (P
-
-NOTE: SILT FENCE,
- --- -- .--- X_ SAFETY 0
-
---- TREE -
- FENCE, DEOCO SHALLBEnINSTALLDATMITS` o
1 )
CONTRACTOR STAGING AREA \ - / - -_ i SF /'OF DISTURBANCE. THSE ARE w N
- -
\ WITH FUELING TANK, DUMPSTER, FFSET FOR GRAPHICAL a E
- AND PORTA-POTTIES - / / / w/WIRE PURPOSES. DRAINAGE DIVIDES
- /' / SUPPORT o
WOODBURN LANE / - - - x X / / / / �AREMEASUREDATTHELIMITS 0
F DISTURBANCE OR
DIVERSION .
D ON DIKE
�IIIIIIII mr-IIIIIIIII m WM���WASH RACK
v� E HALL BE r / r /
ti� E y2 �7 �NT ANC Y - E / o
NOTE: CONTRACTOR TO' - 1 \ v h / T(i15 NST�U IAND MAINTAINED BY INR HIS /
v - PROPOSED LIMITS OF C7 0
ENSURE POSTIVE J /' TIr TED TRA
RAINAGEALONG 1� LLED, LLCONSTRUC RUCT�ONENT C IP DISTURBANCE(TYP.) co 3
1 _ - 542 _ - - - - - V v N PERA TION AN E
DIVERSION DIKE 540/ - - - - - V v --' Soo i IP INST�RACTOR. A HIS CO 'RUC /'
538 / / CON ALL UTI I ET
�v - - H
\ - - - - 536 _ -- - \ 536 �j
TS / / / p5 1 w
PROPOSED TEMP�ARY _ 540� '/ /� REY �/ ��� // .A \ /'\J �� C7 (%� >
-� _
/ I / / STOCKPILE SURR NDED� // C� /( ry -r w' �� (� o
- �TP �� - V A / / BY SILT FENCE ry ti `
534_ \ / 1 / i f / / O
CRE-rE WASH iSD (V r
1 v\ V ✓ ��� / / o� �/ / O AREA 1' N
/ / y f' NOTE: CONTRACTOR TO Q Z o
1 / �� vv v �� - �� / /��/r/'/ IP / ( ENSURE EALOE Q
� 53z � M � / � � DRAINAGE ALONG � J
PROPOSED LIMITS DIVERSION DIKE
i b �� V/ b� r / // ✓ W
OF DISTURBANCE (TYPJ - v r MH / - / RAINAGE DI IDE (TYP.) / / / / o
c - " - / i / / J
S
0 '
� \ 3/ IP
AREA TO SEDIMENT BASIN = o ACRES Tq J ^ i' DC / / SA J f / J O n
SAF 1 f FLOW DIRECTION - - ' - i - r / ' r / / r / / / W °
ARROW (TYP.) / i -- r / - ' / - - - ' / V) Z
o
I 1 --- / / / � - p O
s �.'� A T� / ��._� �� / / / __ / /
PROPOSED FENCE v - - - i / S / /
v \ AROUND o vv v� / /� AMU �� -� / '° ' DCi'/ ♦ /� \ Z U o
1 AROU ' - - ♦ _ _
BASIN--��ATTHE TIME OFTEMPORARY SEDIMENT / �_�" �� Q
/TEMPORARY i5" CMP PIPE
DC BASIN'S REMOVAL THE CONTRACTOR / ' / X�l. ' = W
- �F v \_ \ \� \ V / / OUTFALL TO SOEDIMENT BASIN SHALL REMOVE THE TEMPORARY PIPE ' / �y X X U � o
~
\ � / 5 =6
,w/ WIRE 1 r \ \ \ _ HE INSTALL FTHE - - -
(i56 LF Qa z.
J x x x x /
\ SUPPORT ♦ - / x . X / / / / 0 6/0/ z8 / / X X / - 0
CONNECTION INTO PERMANENT TRUCTU
♦ 10 5z) -& COMPLETE T ATIO O / IP \\ Y o
\ ♦ f .... . g� . STRUCTURE.. � / � X � \ �n \ �J,J Q >
\ -
\ ♦ 26 5�4�
}..x
i •�------- /XX�' X ��� IP
AREA70 SEDIMENT B Szo / / - _ -
Ul
\ 18 / /--- l -- \ Z w
;(X `9 \
\ \ \ TRAP o.iS ACRES ♦♦♦ 15' t 5 115 i / - ♦ _ - \ - - / - - - � /l lJ W O z
V A _ - �\ \ - • / / �t Z N
- 0
\ ✓ ST s=e \ _ �e 6 - - - - - - -- - /, - -_ to / / AT THE TIME OF TEMPORARY SEDIMENT A
S� ` ♦ - sw- , �� � Top OF DA - - 520- - _51�511 508 06 BASIN'S
REMOVE THE TEMPORARY BVAL, THE QARREL � � \ / / ' / O o
LU
IP \ , &OCOMPLETE ITHE INSTALLATION OFSTR.3.-- I I / w a
ON INTO PERMANENT
/ �9 c roaoF / _ --- Sib. - - X ��J \. \ TEMPORARY 18"OCMP BA3RSEL 8 c -y � /i j / �/ 'j X X J / \\\ \\ / I I IIII Q >
7 \
IP 1 o. i LF z. 8/0 11- 1 1 / i \\\\ \
- DAM - _-�5 \ \ v 10=5o8.96) THE CONNECTIONX_ l \ l \ I
BETWEEN THE RISER AND THE
\ BARREL SHALL BE WATERTIGHT. ♦ /
_
_PROPOSED TEMPORARY 24" CMP RISER RIM
ELEV.= z oo . RISER TO INCLUDE A \� IP / 1 / ✓ \ \ \ \ \ / f /
5 3� 4�� � / / � r- � �D A I I
1 - - DEWATERING ORIFICE (INV ELEV.=521.22') & - - - - ti \
A TEMPORARY TRASHRACK & ANTI -VORTEX - - - - - - - -
AT THE TIME OF TEMPORARY SEDIMENT - -
DEVICE. RISER SHALL BE FIRMLY ANCHORED I ) 1 S I A \ I / U
TRAP'S REMOVAL, THE CONTRACTOR_ \
SHALL REMOVE THE TEMPORARY PIPE - TO PREVENT FLOATING. RISER TO BESET IN - - - -PROPOSED 1o' CLASS I RIPRAP EMERGENCY \ \ \ \ \ \ ` I / / 1 \ \I ` I w
CONNECTION INTO PERMANENT STRUCTURE / - - A MINIMUM OF 30" OF COMPACTED SOIL OR - - -- I SPILLWAY W/ FILTER FABRIC UNDERLAYMENT \ \ \ \ \ \ \ �� / / S ` 0 = y
q &COMPLETE THE INSTALLATION OF THE ' - - Ip _ - - - - - - - - - _ - _ __ AGGREGATE BASE OVER A 6'X6'Xlz" - - (DEPTH = z') 4:1 SIDE SLOPES & CREST ELEV.=524.00
\ \ \ \ \ 1 ) \I \ 1 \ \ a r° o
1 STRUCTURE. CONTRACTOR SHALL PLUG _ ' - - - - - - __ THICK GALVANIZED STEEL BASE PLATE, OR - - \ X 7 \ \ \ \ \ \ \ \ \ \ \ \ \ \ JOB N0. N
- - - - - - SET 6" INTO A 6'X6'X18" THICK REINFORCED - �\ \ \ \ a \ 202196
/ HOLE IN EXISTING CURB INLET WATERTIGHT. - - - i - - - - - - -
1/ CONCRETE FOUNDATION. NOTE IF STEEL
/ - - - TEMPORARY 15" CMP PIPE ( (' / / / I -- - BASE IS USED SPECIAL ATTENTION SHALL SCALE
--� _------- / - --- o / I / / i / f v� 1"- p'
�� - - - - - TO EXISTING CURB INLET/ / / BE GIVEN TO COMPACTION SO THAT 95/a I y / / / / / / / / / / / / / (I I I \ \ 3 0
(2g.15 LF Qa 4.67%, 11=511.36, COMPACTION IS
ACHIEVED OVER THE PLATE.
ATE. I WMH) \IV1A a \\ SHEET NO.
10= 10.00) o
6
* NRGINIA EROSION & SEDIMENT CONTROL "rC79
EROSIONCONTROLHANDBOOK SPECIFICA77ON NUMBER Sediment Trap design #35moo- SAFETY FENCE 3.01 r veRw,� \ \ ® \drainage area (acres) ( 3 ac) 0.11 \ - --- ------ - ®
trap volumes: caesrorsroxewElR Sz6 \ € w ® - /
CE ------
CONSTRUCTION ENTRANCE 3.02 °RC""` "" s - = \ �° v �� - v -
elevation (ft) area (sf) wlume(cf) volume(cy) ERuouND I i_I \ / --_-_
520 36 0 0.0 - T IJ l \ \ - - / CSC NSA
SF�E SILT FENCE 3.05 u D ---' '- ----- -- -t- -- -\ \ P U ONo.R35791 I 11,
522 204 217 8.0 - `
DRY STORAGE v \ \
524 500 899 33.3 Sao \� �� A 0p 06/07/21 r�
lP STORM DRAIN INLET PROTEC77ON 3.07 0 0 0 0.0 ONAL 0 0 0 0.0 WET STORAGE wu \SI E�
ClP CULVERT INLET PROTECTION 3.08 (Excw.m> _ - - -- \ \ \ S G
areR aom \ \ �'� �
O c N 522 1- o \
I
I
wet storage: R a,3 , COARSE ACGNEGA E CVSS I RERAP \
DD �1 TEMPORARY DIVERSION DIKE J. wet storage required (cy) (67*DA) 7.4 -
-
bottom of stone weir (ft) 521.83
®� TEMPORARY ROW DIVERSION 3.11 wet storage prodded at this elevation (cy) 7.4
slope of wet storage sides 2:1 520
0� SEDIMENT TRAP 3.13 weir length (ft) (6xDA) 0.7
0
dry storage: bottom of trap elevation (ft) 520
dry storage required (cy) (67*DA) 7.4 bottom trap dimensions: 4'X9'
SB O SEDIMENT BASIN 3.14 crest of stone weir 523.0 top of dam elevation (ft) 524 ------
dry storage prodded at this elevation (cy) 7.4 top width of dam (ft) 6' J ✓ n �r26 - - _524 ' - - - - 10 / /
OP OUTLET PROTECTION 3.18 �' l P �Y 9 p P / / 5 / - - -- -- v V A 522 52O_ _ _ - - 5i4� -512_- 5 Sob Sob - o
-- - ----- - U m
RR RIPRAP 3.1g slope of d storage sides 2:1 to trap / / 22X2 / ��
�- /-_ �� n
y 0 / ✓ - - - - 518 X \ m x
/ _
NOTE: MEASURES INTENDED TO TRAP` 1 U r /l r / / ' ( _ / Sib --'' 6 _ \ IP z o U) s
I \ SEDIMENT SHALL BE CONSTRUCTED AS A\FIRST / IP
TS 75 TEMPORARY SEEDING 3.31 AND SHALL BE MADE FUNCTIONAL BEFORE / /=----5i4 \
STEP WITH ANY LAND DISTURBANCE ACTIVITY / l / / J _ - - O L o
\ / / - y \ U a r
PS PS PERMANENT SEEDING 3.32 \ - _ - \ \- H �^ "' 3
/ I I lUPSLOPE LAND DISTURBANCE TADS PLACE.- - r' / r / 516 - \ ,w Ln z Q
/ _ _ VI
1 v Q A C
MU MU MULCHING 3.35 l V / l l � s IP - \ H w
GRAPHIC SCA�1�� I v / / / IG - - v� IP Ln w
>
TP TREE PROTECTION 3.38 / / - " x °
j ( \ 30 0 115 30 60 / 120 I I - I � _ - - - - - J
� w
Uj U
DC OC DUST CONTROL 3.39 - - - F
r - ' �OSI T� EDIMEN_T CONTROL PLAN PHASE IIIA - \ Z °
BM + + + + + SOIL STABILIZATION BLANKET 3.36 / O \ \ \ (3N FEET - - - - - - - - - - - -
\ 1 inch - 30 ft. 7,MP' _ s 45-68C2 v / -
/ f . r 2.756 AC
(APPROX) I I TMP 45-68E
2.183 AC
o
(APPROX) (P - -
/X� CONTRACTOR RACTORSTAGINGAREA
�-_ --��
-_-_-- - -X= X, �X / - - ITHFUEL S -- - ( X W FUELING TANK DUMP
i /NOTE• SILT FENCE SAFETY o
\ - - - /X X°" X oX I - AND PORTA-POTTIE i FENCE AND TREE PROTECTION o
z ' ,SHALL BE INSTALLED AT LIMITS
-
\ - - - `- - - - _ - / � - -- _-_-_--� �� _ \ - � - - / SF / OF DISTURBANCE. THSE ARE w N
FFSET FOR GRAPHICAL a
-- - - - p / w/WIRE ARE MEASUREDINAGE ATTHEDIVIDES
LIMITS 0
WOODBURN LANE / NOYE:CONTRACTOR O /SUPPORT o
w - / _ _ _ W / ENSURE POSTIVE / OF DISTURBANCE OR
p DRAINAGE ALONG / DIVERSION DIKE.
DIVER ION DIK
IP DRAINAGE DIVIDE (TYP.) _.
-
- A
REA TO SEDIMENT TRAP-0.22 ACRl
� -
�L:
v
N TE: THIS CO STRUC ION ENTRANCES NSTALLED OPERATED AND MAINTAINED BY THE S 1 l PROPOSED LIMITS OF M o
/ I ONTRACTO .ALL CONSTRUCTION TRAFFIC IN THIS I DISTURBANCE = 5.04 acres J M 3
R ✓/A H RACKN / /
AR HALL TILIZETHIS CO STRUCTIONENTRANCE. �!
N
� 8 I I N N _ o
Uj
53 536DRAINAG€DIVID€(TYP. /�
\ i -
r /
I I I
H
M
� >
I I
I I �
/ l
° / � � � f i � �- � � o
Q
TP ^ r \ / i / i / / / N PROPOSED FENCE AROUND r - N o
CONCRETE WASH' O
/ �� ry N SEDIMENTTRAP � �
/
z OUT AREA �, _j
M
N °
/� ®� / �i /� z
6' WIDE TOP ®J ® / I J/ J Q � o
v 532 /' v �� / OFDAM >
/
-
PROPOSED LIMITS / ® ti ® J
�,C RWD / � / <o � h � � / / / i / � � J
OF DISTURBANCE -- / r Win-
=5.04 acres - - - - r
r �
1
v� IP ® r - _ __ /
I _ i i /'
1 i a
PS. '
I ',
26 PROPOSEDFENCE \ - - - / / I - - / / / / //
� � z
v \ 5 v \ AROUND SEDIMENT \ v / '
\ - -- --- --- -- BASIN AREA TO SEDItv1ENT BASIN=3.4oACR S _
/ ! • Q�
AT THE TIME OF I tMPORARY SEDIMENT I� Q
TEMPORARY i5" CMP PIPE ';BASIN'S REMOVAL, THE CONTRACTOR I /' / / w P
F _ 52 \ i /� OUTFACE TO SEDIMENT BASIN - �/. / � (� LJJ
- \ 4 \ l \ I f 'SHALL REMOVE THE TEMPORARY PIPE / / �c-y °
_ (2 6 LF z. 6°h 11= z8 Z
5 C 5 5 'CONNECTION INTO PERMANENT STRUCTURE
w/WIRE / \\ \ \ \ - / / IO-S20) �& COMPLETE THE INSTALLATION OF THE / IP \ / Y _ o
\ SUPPORT' 522- \ l / I / - STRUCTURE.. i „�P X \ r, W z Q >
�\ \ i / Xxx V A _ Lu E
---- -- %
o - -- -- --- / X \
Ul
o
r - - / - - - - - \ z
0 / - PS `� --- --- W z w
52 _ \ w
I 25 i�5 - v -\ /� V / 1/ / LU U Q z
-- --- --- - - ��� i --- '/ \� --�• j/ i i/ i _ -� \\ �\/ (n O o
\\ /I
�Sj� ~1 J ✓ _ , \ \ ^ • 26 - ' - - - -- 1O
20 a2 5 Sob 06 AT THE TIME OF TEMPORARY SEDIMENT ��
\ - - 5 520- - yz 5 \ BASIN'S REMOVAL THE CONTRACTOR _ \�
I \ TOp OF DA - _ - 524 _ 5 / - \ \SHALL REMOVE THE TEMPORARY BARREL- / ' / - �� \ \ �1
-
`% I \ \ ��P- x- _x-X ✓ _ � ` _ CONNECTION INTO PERMANENT STIR. 3 / / / // / j / / j / / I ` � o
- - - ` - - - 18 IP \ �8' & COMPLETE THE INSTALLATION OF STIR. 3. / j i �- X \\\ \ ' \\ r J i I/ / y
/ IP i4 90 gOR3. F @ 2.3RY 8%, 11 MP BARREL
3R5i L c� �L j i i jX iX - J \ \ \ \ II Q w
5 \ 10=5o8.96) THE CONNECTION Wawa N
c
� - \ BETWEEN THE RISER AND THE � ��' / ��' ���\ \ \
- �� \ BARREL SHALL BE WATERTIGHT. J / `� �' \ \ r I 1 \ \ /1 /I I I CAI s
_PROPOSED TEMPORARY 24" CMP RISER RIM
--
---- - - - ELEV.= 5z3.00'. RISER TO INCLUDE A 4" \� IP / ' /� / 'r 1 �0 \ I / ✓ \ \ l /
DEWATERING ORIFICE (INV ELEV. 5z2.zz') & - - - _ _ -�
A TEMPORARY TRASHRACK & ANTI -VORTEX - - - \ ( / f r / / ( \ r I ° \ J E
AT THE TIME OF TEMPORARY SEDIMENT - - - - - - - - \ /
TRAP'S REMOVAL THE CONTRACTOR_
_ _ DEVICE. RISER SHALL BE FIRMLY ANCHORED I 1 / 1 A \ I \
SHALL REMOVE THE TEMPORARY PIPE - TO PREVENT FLOATING. RISER TO BE SET IN - - - - -PROPOSED 20' CLASS I RIPRAP EMERGENCY \ l \ \ \ \ 1 ` 1 1 / / t \ \( ` t I w
z CONNECTION INTO PERMANENT STRUCTURE / - - A MINIMUM OF 30" OF COMPACTED SOIL OR - - - - - 1 -SPILLWAY W/ FILTER FABRIC UNDERLAYMENT \ \ \ \ \ \ \ �o / / \ S ` 0 = y
& COMPLETE THE INSTALLATION OF THE / - - Ip - - - - - - - - - - - - - - _ _- AGGREGATE BASE OVER A 6'X6'X22" - - - - _ _ - (DEPTH = z') lt:2 SIDE SLOPES &CREST ELEV.=5z4.00 \ \ \ \ \ \( \ 1 \ ` a `°
THICK GALVANIZED STEEL BASE PLATE OR - �yX 7 ° V �V A �V A \ V A \ V A V A JOB N0.
STRUCTURE. CONTRACTOR SHALL PLUG _ / ' - - - - - _ - \ \ \ > l \ I j \ \ 202196
i HOLE IN EXISTING CURB INLET WATERTIGHT. -SET 6" INTO A 6'X6'X28" THICK REINFORCED - -7
- - - - - - _ CONCRETE FOUNDATION. NOTE IF STEEL A v / / / / / / / / / / / i ° v A
_ - - TEMPORARY i5" CMP PIPE ( / �- - -- - - _ _ BASE IS USED SPECIAL ATTENTION SHALL SCALE ' N
- - - - TO EXISTING CURB INLET/ / / BE GIVEN TO COMPACTION SO THAT 95/a
_ (29.15 LF Qa 4.67%, 11=521.36, / / COMPACTION IS ACHIEVED OVER THE PLATE. WMH1
SHEET NO.
10= 20.00) 7 sn
VAvVyM, PRE -DEVELOPMENT SWM PLAN: / / /�/ �/ / l f v z �t �11 ` \\V \vV�IV'. ,
4 \ LAN:
POST -DEVELOPMENT SWM P
II 1 �/ Or . / / / I \v v 4 \� V Vv\ 11
I I wv vv —� ASCALE i =50 vv l vv SCALE i — o
} \ \ /y\ \
WOFa WALL DRAIN INTODOWNUTS WHICH WILL T�`� ( \ \ 4 \ \ 1 \
TTSyyPE CQ*RESPONDIN�YARD
LINES BEHIND T LOTS V A 1 \ L I
�� � t v v , v .� �, •, I ,II � � � _ �V
� / / �-' � /-1 I I \ \ \\ �\ � \ \ \\ \ \\\ \ 1 III �I c/ / /1 �' r —\ I I \ \ \\ �\ `� \ \\\•\ III II ,
go
11 \®\ \` \ \ \\ 1 11 f \\\ 1
TME,B�UNDARY FOR THE ® v A A / TMEtB ND�RY FQR THE
\ \ \ \ \ \ \ P RO - \ \\\
DL PROPOSED LIMITS OF I\ \ \ \ \ \ \\ DI RO SED LIMITS OF
STURBANCE`(5.04 ac.) IS i \ _ ® ,\ 3
r 1 � v v� v `` v vvv� � sT'u�BArvcE�(5.o4 ac.) is
US D TO DEFIN'THE \ US D, f0 DEFINE
'THE -
�® \
BOUNDARY FOR THE VRRM ✓ \ \ y \ \ \ \ \ / \III \ BOUDARY FOR'1HE VRRM --- \
AlWATER QUALITY -v A \� \ v 1�\V 1 \��\ WATER QUALITY
CULATION$, TYP. \ \ /�'ACULATIONSTYP.
-
I
\ =
11 f Jl / / \ ✓ � ' �. `,. i I �I.,. (�•: � r _..e-,f J � J / / � \ / ,h �-- - -- 1 � � \\ \\� J f f ,. .,
1
- -
/ / ✓ �/�� \ v v \ v \ \ 1 � � \ \ \ \ � 1 A \ VAf � / / ✓ � J �/�� \ � _ - �_ '`� 1 A \ VAS - .-
I
n �\� v 1 \\ V A\\ \�� \V 1 VA \V\ � i'/ �'r =--'v \ y \ 1 VA V\\1
\ v_--�° ���� v v v l
BAR AB\\1vv\1—
\ N_58V\v
— v v Tc 0.2'3,hl
Qq
L F \ \ \ \ \� / F 1 —
i V W 4
I
l 1 \ \ \ D \ l 1 it \ /
f \\ 1 % � a 1
X 11 1
re-o23 n s.
{ % 58' OF OLF w A E
= 403' OF N N C. FLOW w A
1
,J � I� 16� ov� v v 1 i I I� I 1 1 1 / \/ ' A V A V A A ✓/ I � w °`—_ ' /
<�
Tc=0.10 hrs.
26' OF OLE w/ A ELEV.=0.5'
209 OF CONC. FLOW W/ A ELEV.=5.5'
585' CHANNEL FLOW IN PIPES ® 10 ft/s X
PARKIN��v
I� SIGN � \ ` \ \ \ \\ \ \ \ s• o I / \\/ \ ti � = —_—_— - l;_,
-, _ ! \ � �� �� � \� � � `� \ \\ �\ \ \ \ •. IIIII -� / \ `\ \ _ � _- U =
21i
- - -� v V 0 IA A �- I J_ 1-M C i o IA
\\ h Xa`,\\ \ \� \ 1 \1\I�\\�\� ^ _� -- _ \\ h I( I
vV 1 �oO" zco
v III 1 ,' iv / /' l I I �\ ;� I ► I ��
o v/ / /
bV �� �_-�� AIII � I �%• / v // // / 4%� II�IIIlllll�. I IIIIIII111 . r 5> a b� vv ✓�-�\III
I \II11111 'A �IIIIII
,_J—
> > L
I SUB?*EA
I
1
SUBJECT _ f
� I I 2.00 a . v � � �� I j, � SUBJECT
f
PROPERTY, /j I CN= PRO�F�ERT1(,\ /I
TYP. I ic1'O 2 hrs. s �� / �v �' -- o - r `TYP. I
�
Tc=2�3
3' Ord OLF wf A E. V.-4
4103' O�CON�-,. FLOW wl A ELEV 30'� l A v •� a — — / S
lie
,✓---�/ 1 1 � Il A �I I I 1 1 1° \ � I I I/ I I� I I F—��_ ��r.r''---I\�
_ ( I I l { •j 1 � s I �� l I I I I I � /---1 / — III
III \\
I
\ / j • III x
TFI
(�r/
I
.� � 1 � I 1 fJ I✓ / � / C
WATERSHED SUMMARY
Pre -Development Impervious Area Summary
Subarea A, Water Quantity
Building/Structure 0 sf
Sidewalks/Concrete 0 sf
Roads/Driveways 2,491 sf
2,491 sf
Subarea B, Water Quantity
Building/Structure 0 sf
Sidewalks/Concrete 0 sf
Roads/Driveways 4,372 sf
4,372 sf
Pre -Development Impervious Area Summary
LOD, Water Quality
Building/Structure 0 sf
Sidewalks/Concrete 0 sf
Roads/Driveways 4,137 sf
4,137 sf
A
1 Fl
2 Fl
10 Fl
QG { ^ /�/ \ \ \\ \ \\\
-\_ v
A� I \
\ —
UBAR v� _
I ��
— 4.33 ac. .. '`•� I I III �-----'—
r
CN=88
Tc=0.10 hrs. I Z
J
- -
• � �� �\ ter,
-
-
II
- /- I �
- : �•,I IIIII \-� �
' 111 •. III II \ 1
�I :• I 1 111 I III r NS
----- _
t
-- --- ;✓ I I I IIIII 1
I
{
y
1\ /
1
n
{
r I II r
,• _ I I IIA�II
/ ( � /
1 I
vF 'vI� q
/ �
L /
/�
1 / 1
r J I f I//l
Post -Development Impervious Area Summary Post -Development Impervious Area Summary
Subarea A, Water Quantity LOD, Water Quality
Building/Structure 61,480 sf Building 61,480 sf
Sidewalks/Concrete 11,123 sf Sidewalks & Concrete 13,097 sf
Roads/Driveways 62,547 sf Parking Areas/Road 61,915 sf
135,150 sf 136,492 sf
PROPOSED STORMWATER MANAGEMENT NARRATIVE FOR THE PROJECT:
OVERVIEW:
THE PROPOSED STORMWATER MANAGEMENT PLAN COMPLIES WITH PART 1113
REQUIREMENTS TO MITIGATE IMPACTS FROM THE PROPOSED IMPROVEMENTS.
SUMMARIES OF THIS COMPLIANCE CAN BE VIEWED IN THIS VSMP SETAND IN THE
ACCOMPANYING STORMWATER MANAGEMENT CALCULATIONS PACKET.
STORMWATER QUANTITY:
CURRENTLY ALL OF THE EXISTING IMPERVIOUS AND PERVIOUS AREAS WITHIN THE
PROJECT LIMITS EXIT THE PROPERTY UNTREATED. THE PROPOSED PLAN WILL
CHANGE THIS AND WILL CAPTURE THE MAJORITY OF THE PROPOSED
IMPROVEMENTS. THE CAPTURE AND DETENTION OF THE MAJORITY OF THESE
IMPROVEMENTS 15 REPRESENTED BY POST -DEVELOPMENT SUBAREA A, WHERE AN
UNDERGROUND DETENTION SYSTEM ATTENUATES THE RUNOFF. CHANNEL
PROTECTION IS MET VIA 9VAC25-870-66 SECTION B.3.a. FLOOD PROTECTION IE
MET VIA 9VAC25-870-66 SECTION C.2.b.
PLEASE SEE THE ATTACHED STORMWATER MANAGEMENT CALCULATIONS PACKET
FOR ADDITIONAL DETAILS PERTAINING TO THE STORMWATER QUANTITY
COMPLIANCE.
STORMWATER QUALITY:
THE STORMWATER QUALITY REQUIREMENTS FOR THIS DEVELOPMENT ARE MET
THROUGH THE BEST MANAGEMENT PRACTICE OF PURCHASING NUTRIENT
CREDITS. A MINIMUM PHOSPHOROUS REMOVAL RATE OF 5.59 Ibs/yr IS
REQUIRED. THE DEVELOPER WILL PURCHASE NUTRIENT CREDITS PRIOR TO THE
ISSUANCE OF A LAND DISTURBANCE PERMIT.
PLEASE SEE THE ATTACHED CALCULATIONS PACKET AND THIS SHEET FOR
ADDITIONAL DETAILS.
General Construction notes for Stormwater
1. All dams and constructed fill to be within 95% of
maximum dry density and 2% of optimum moisture
content. All fill material to be approved by a
geotechnical engineer. A geotechnical engineer is to
be present during construction of dams.
2. Pipe and riser joints ore to be watertight within
stormwater Management facilities.
3. For temporary sediment traps or basins which are
to be converted to permanent stormwater
management facilities; conversion is not to take
place until the site is stabilized, and permission has
been obtained from the erosion control inspector.
CHANNEL& FLOOD PROTECTION SUMMARY
GRAPHIC SCALE
50 0 25 so 100 200 Pre-Dev. Post-Dev. Method of 9VAC25-870-66 Method of 9VAC25-870-66 Method of 9VAC25-870-66 Method of 9VAC25-870-66
Limits of Analysis for Channel
Subarea Subarea Channel Protection Compliance Protection Flood Protection Compliance Limits of Analysis for Flood Protection
( IN FEET I A & B I A *Section B.3.a (Energy Balance) N/A (Energy Balance Satisified) Section C.2.b (10-yr. Post Flow < Pre Flow) N/A (10-yr. Post Flow < Pre Flow Satisified)
1 inch - 50 ft. *Exception Request submitted to allow higher peak flow rate than what energy balance requires
SCOTT/R. CbL]
No. 35791
06/07/21
Z
O
in
U)
ca
Z z
m
o `"
0 a Lu
w
Ln a
w o Z
z
0
� o_ \
w
LU w
Ine
ti
Z
a
i
I)
M
M
CA
N
M
N
O
())
N
N
Ld
J
LU
LU
LU
LU
RY
LU
RY_
(Q
V
O
n
CV
z z
J J
LLJ
�L
V
~ z
(r2 Q
V C
LU c
= W
z Q
�I
O
U
F-
.w-, w
O w
a cn
JOB NO.
202196
SCALE
111 = 501
FACILITY INSPECTIONS DURING CONSTRUCTION:
CONSTRUCTION INSPECTIONS ARE CRITICAL TO ENSURE THE UNDERGROUND DETENTION SYSTEM IS PROPERLY
BUILT. BECAUSE THE TIMING OF THE INSTALLATION IS DICTATED BY THE CONTRACTOR, THE CONTRACTOR
SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER, COUNTY INSPECTOR AND CONTECH
REPRESENTATIVE PRIOR TO INSTALLATION. CONTECH, OR AN EQUIVALENT PIPE MANUFACTURER, SHALL BE
CONTACTED WELL AHEAD OF THE CONSTRUCTION START DATE TO ENSURE ADEQUATE LEAD TIME FOR
MATERIALS AND DELIVERY. MULTIPLE SITE VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE
CONTRACTOR, WITH THE ENGINEER, COUNTY INSPECTOR & PIPE MANUFACTURER, DURING THE FOLLOWING
STAGES OF THE UNDERGROUND DETENTION SYSTEM CONSTRUCTION PROCESS:
1. PRE -CONSTRUCTION MEETING
z. INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS)
3. EXCAVATION/GRADING (E.G., INTERIM/FINAL ELEVATIONS).
4. WHEN THE DETENTION PIPE SUBGRADE IS READY FOR PIPE CONSTRUCTION, BUT BEFORE STONE BEDDING IS
INSTALLED.
5. AFTER STONE BEDDING IS PLACED AND COMPACTED, BUT PRIOR TO PIPE INSTALLATION.
6. AT THE TIME OF THE PIPE INSTALLATION.
7. AFTER PIPE INSTALLATION, BUT PRIOR TO PLACING FILL OVER THE SYSTEM.
8. FINAL INSPECTION (DEVELOPA PUNCH LIST FOR FACILITY ACCEPTANCE)
PLEASE ALSO SEE BELOW, UNDER FACILITY MAINTENANCE, FOR REQUIRED INSPECTIONS AFTER INSTALLATION
IS COMPLETE.
FACILITY INSPECTIONS & MAINTENANCE AFTER CONSTRUCTION:
THE FOLLOWING MAINTENANCE TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR
FOLLOWING THE INSTALLATION OF THE UNDERGROUND DETENTION SYSTEM.
i. FOR THE FIRST YEAR FOLLOWING CONSTRUCTION, THE SITE SHALL BE INSPECTED BY THE CONTRACTOR
QUARTERLY AND AFTER STORM EVENTS THAT EXCEED 1 z INCH OF RAINFALL.
2. THE CONTRACTOR SHALL LOOK FOR BARE OR ERODING AREAS IN THE CONTRIBUTING DRAINAGE AREA AND
AROUND THE UNDERGROUND DETENTION SYSTEM AND MAKE SURE THEY ARE IMMEDIATELY STABILIZED.
CONTRACTOR SHALL SPOT RESEED AS NECESSARY AND ENSURE ADEQUATE SITE COVERAGE IS PROVIDED
WITHIN THE FIRST YEAR. AT THE QUARTERLY INSPECTIONS, AND AFTER EACH RAINFALL EVENT IN EXCESS OF
12", THE CONTRACTOR SHALL PERFORM THE ANNUAL MAINTENANCE TASKS DESCRIBED BELOW IN #3.
AFTER THE FIRST YEAR THE OWNER SHALL PERFORM FOLLOW-UP INSPECTIONS ANNUALLY, AND AFTER EACH
SIGNIFICANT RAINFALL EVENT:
3. A SPRING MAINTENANCE INSPECTION AND CLEANUP SHALL BE CONDUCTED ANNUALLY. THE MAINTENANCE
PROGRAM FOR THE UNDERGROUND DETENTION SYSTEM SHALL INCLUDE CLEANING IT ANNUALLY OF TRASH,
DEBRIS & SEDIMENT AND ENSURING THE INTEGRITY OF THE WEIR PLATE, TRASH RACK AND OUTFALL &
INFLOW PIPES. THE OWNER SHALL ENSURE THE SYSTEM IS OPERATING AS INTENDED AND IS NOT CLOGGED
OR DAMAGED. THE OWNER SHALL IMMEDIATELY CLEAN & REPAIR THE FACILITY AS NECESSARY AND SHALL
PAY SPECIAL ATTENTION TO THE INLET AND OUTLET LOCATIONS. THE ACCESS MANHOLES SHALL BE USED
FOR INSPECTION AND MAINTENANCE.
535
ED GRADE (TYP
530
525
FILL TO BE LACED AT -
95%COMPACTION (TYP.)
520
5�5
0 . /
$ o/
O i 0/
a>i,�,F-
M
U
N O; O
510
LLI
1:0-j OHD,~„Izz
F-
II >>
2 xNw
N
�QD
LnH2mN
F °wMrn
0
11 Ln0 a
0 cL Dm..
>~O�
505
0- °
0> >,
Ln o z z
Soo
)NTRACTORTO
VERIFY INVERT
OF EX. PIPE
495
15" RCP
40.8o LF dal lo.00%
490
�Oe 1°l0
tiSF��h
%RESTRICTIVE WEIR PLATE
/AT LOW POINT TO DRAIN
THE SYSTEM SEE DETAIL
1 ON THIS SHEET
\-EXISTING GRADE (TYP.)
PROPOSED LOWER 15"
1NDERGROUND DETENTION-
SYSTEM PRIMARY OUTFALL
1.5 RCP Oo%
151.071-1 C 2.
15" RCP
12.59 LF Cal 3.36%
SED 8"
Y SEWER
IN
i-YR PEAK
WSE=517.68�y
UNDERGROUND DETENTION SYSTEM GENERAL NOTES:
1. TRASHRACKS SHALL BE INSTALLED ON ALL ORIFICES, INCLUDING THOSE LOCATED ALONG
THE WEIR PLATE WITHIN THE UNDERGROUND DETENTION SYSTEM, IN ACCORDANCE w/THE
DETAIL SHOWN ON ON THIS SHEET (OR EQUIVALENT).
2. DETENTION SYSTEM's WEIR PLATE TO BE PRE -MANUFACTURED AND DELIVERED TO THE
SITE. WEIR PLATE SHALL BE SECURELY AFFIXED TO THE INSIDE WALLS OF THE MANHOLE
STRUCTURE.
3. PRIVATE DESOTO COURT LOCATED WITHIN THE SWM EASEMENT, SHALL SERVE AS ACCESS
TO THE PROPOSED UNDERGROUND DETENTION SYSTEM.
4. CONTACT COLLINS ENGINEERING (434.293.3719) REGARDING ANY QUESTIONS CONCERNING
THE UNDERGROUND DETENTION SYSTEM.
5. ALL FILL EMBANKMENT MATERIAL SHALL CONSIST PREDOMINANTLY OF SOIL AND BE
PLACED IN SUCCESSIVE UNIFORM LAYERS NOT MORE THAN 8 INCHES IN THICKNESS BEFORE
COMPACTION OVER THE ENTIRE AREA IN ACCORDANCE WITH CURRENT VDOT ROAD AND
BRIDGE SPECIFICATIONS, OR THE FILL EMBANKMENT MATERIAL SHALL MEET THE PIPE
MANUFACTURER's SPECIFICATIONS OUTLINED BELOW (WHICHEVER IS MORE STRINGENT).
6. ALL FILL SHALL BE PLACED AT 95% COMPACTION AND TESTED BY A GEOTECHNICAL
ENGINEER TO ENSURE COMPACTION IS REACHED AND MAINTAINED, OR THE FILL SHALL
MEET THE PIPE MANUFACTURER's SPECIFICATIONS OUTLINED BELOW (WHICHEVER IS MORE
STRINGENT).
7. VDOT STD. IS-1 & ST-1 ARE REQUIRED ON ALL PROPOSED PUBLIC STRUCTURES AND THE
UNDERGROUND DETENTION SYSTEM's JUNCTIONS.
8. PRIOR TO CONSTRUCTION THE CONTRACTOR SHALL TEST -DIG AT THE EXISTING INLET &
OUTFALL TO CONFIRM THE INVERTS AND TO ENSURE THE PROPOSED GRADES CAN BE
ACHIEVED. CONTRACTOR SHALL CONTACT COLLINS ENGINEERING OF ANY DISCREPANCIES IN
THE HORIZONTAL OR VERTICAL ALIGNMENT PRIOR TO ORDERING AND CONSTRUCTION.
9. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA
STANDARDS FOR CONSTRUCTION INDUSTRY (29 CFR PART 1926).
10.PENDING PRIOR APPROVAL BY COLLINS ENGINEERING, THE DRAINAGE PIPE MATERIALS MAY
BE SUBSTITUTED. ALL DRAINAGE PIPE INSTALLATION PRACTICES SHALL BE IN ACCORDANCE
WITH CURRENT VDOT STANDARDS AND REQUIREMENTS. CONTRACTOR SHALL ENSURE
MINIMUM COVER REQUIREMENTS ARE MET WITH ANY PIPE SUBSTITUTION.
535
PROPOSED ACCESS MH
W/ STAIRS FOR INSPECTION
& MAINTENANCE
530
NEIR PLATE
NVERT=512.50
PROPOSED 120" CMP UNDERGROUND DETENTION
SYSTEM Cal 0.5o%TO ATTENUATE RUNOFF CAUSED
FROM THIS DEVELOPMENT.
TOTAL CMP LENGTH=367.00'
O �0 01 n00
N !^ O
1� O f. M � vl a
Ln ul V1
OD � 00 00�
00 6 6
10+00 10+50 11+00 11+50 12+00 12+50 13+00 13+50
PROFILE SCALES
1"=5' (VERTICAL)
i"=50' (HORIZONTAL)
525
520
515
STR:4 VDOT STD. MH
S10 TP=526.49
INV IN: 512.o8TO UGD-
INV IN: 517-SO TO 5
INV OUT: 511.98 TO 3
505
Soo
495
490
10.z5 L
N
.N..
Ul
L
= 2a
Q Ln
535 Ln ° 535
I.-
0-pm
0,00 Ln
z0
LA ? ?
530
530
PROPOSED
GRADE
-EXISTING GR
525
525
PROF
ALLC
FREQ
SAFE
S2o
S2orE
iS"
RCP
14.45
LF Cal 16.390r
515
515
1S" RCP
F Qa io.00%
510
S10
PROPOSED 12o
SYSTEM @a o.Sc
FROM THIS DE\
TOTAL CMP LEI
505
1
505
o
cn
N
N
Ln
10+00 10+50
_ ____I_____ __ _-I ___I J
\ I�
PROPOSED ACCESS MH w/ STAIRS FOR \ �I
_ INSPECTION & MAINTENANCE, TYP.
ACCESS MH TO BE LOCATED UPSTREAM & PRIVATE SID TO PROPOSED ELEVATED 015" PIPE ALLOWS
DOWNSTREAM FROM RESTRICTIVE WEIR SERVE AS ACCES TO S MORE SIGNIFICANT &LESS FREQUENT
PLATE AND AT THE MIDPOINTS & HIGH •• F CI - • .,, STORM EVENTS TO SAFELY BYPASS THE
POINTS OF THE SYSTEM, AS SHOWN. <• ..' -. .a - ' `� UNDERGROUND DETENTION SYSTEM
�i!.ti!tii!tii!tii��;i��;i�tci�t%i!.tii!�i!�i!tii!tiiRia�►ii�►iRiR���
0120" IN
512. 3' \ ��
--- / - - -
-----------------
1• ``'' CONTRACTOR SHALL CALL THE COUNTY INSPECTOR & RESTRICTIVE STEEL WEIR PLATE, AT
ENGINEERING DEPARTMENT 24-HOURS BEFORE ANY - LOW POINT, TO DRAIN THE SYSTEM.
- ANTICIPATED CONSTRUCTION ACTIVITIES FOR THE SEE DETAIL ON THIS SHEET. -
BMPs. THIS IS INCLUSIVE OF WHEN THE -
UNDERGROUND DETENTION SYSTEM SUBGRADE IS
- - - READY FOR PIPE CONSTRUCTION, BUT BEFORE STONE
BEDDING IS INSTALLED.
UNDERGROUND DETENTION DETAIL: SCACE
.(TYP.)
)E (TYP.)
OSED ELEVATED 15 PIPE
WS MORE SIGNIFICANT & LESS
UENT STORM EVENTS TO
-Y BYPASS THE UNDERGROUND
NTION SYSTEM
i
"CMP UNDERGROUND DETENTION
%TO ATTENUATE RUNOFF CAUSED
ELOPMENT.
VGTH=340.00'
EMERGENCY BYPASS PROFILE
NOTE: PROPOSED STORM SEWER SHOWN IS
CLASS III RCP. THE CONTRACTOR MAY SELECT
A VDOT APPROVED MATERIAL IN LIEU OF THE
CL. III RCP FROM THEIR APPROVED LIST
PROVIDED ALL PIPE, PIPE BEDDING, BACKFILL
AND INSTALLATIONS ARE IN ACCORDANCE WITH
THE CURRENT VDOT STANDARDS. ANY PIPE
MATERIAL PROPOSED AS CL. IV RCP SHALL
NOT BE SUBSTITUTED WITH ANOTHER PIPE
MATERIAL.
i
i
PROPOSED LOWER 015" --
- UNDERGROUND DETENTION - -
�_ SYSTEM PRIMARY OUTFACE
BERKMAR DRIVE
1
0120" WEIR PLATE DETAIL
NOTE: -
WEIR PLATE TO BE BOLTED &
SEALED TO DETENTION SYSTEM
WITH WATERTIGHT CONNECTIONS.
MANUFACTURE / INSTALL ONE (1) OVERFLOW WEIR
(EQUIVALENT DIAMETER=9.76") ACROSS THE STEEL PLATE
(INVERT ELEVATION 522.25')
MANUFACTURE/ INSTALL ONE (i) 06"XOio" HIGH -FLOW
ORIFICE IN THE STEEL PLATE (INVERT ELEVATION 518.70')
MANUFACTURE / INSTALL ONE (1) 06" MID -FLOW ORIFICE
IN THE STEEL PLATE (INVERT ELEVATION 517.70')
INSTALL TRASH RACKS ON ALL-Z
ORIFICES, TYP. SEE THIS SHEET
FOR DETAIL, OR EQUIVALENT.
MANUFACTURE / INSTALL ONE (1) 03" LOW -FLOW
ORIFICE IN THE STEEL PLATE AT THE LOW POINT OF THE
DETENTION SYSTEM (INVERT ELEVATION=512.50')
SCALE:1"=5'
ELEV.=522.50'
(TOP OF PIPE)
NFURLhU 121
STEEL PLATE
ELEV.=512.50'
(BOTTOM OF PI
SCOTT7R. MbLLINS'Z
No. 35791 11,
06/07/21 4)
z
0
Ln
Vl co
Z z
m
o �
O Lu
w
U
w Z
o z
z
0
In a
w
ui w
li F_
z
r
M
M
m
N
ItM
w
_J
J
W
I U)
W
Lu
J~
w
mj
Q
o
n
J
z
Q
Q
0-
W ,
0
V)
W
w
=
z
(V
Q
Lu
z
ILL]
Q
Q
O
U_
O
>
v~i
F-
Lu
w
W
a Ln
JOB NO.
202196
SCALE
AS SHOWN
SHEET NO.
9
0
�12118'�
HUGGER FLATGASKET
SINGLE BAR, BAND
BOLT AND STRAP (SBBS)
FLAT GASKET
CONNECTION DETAIL
(SBBS)
2 2/3"x1/2" RE -ROLLED END HEL-COR PIPE
GENERAL NOTES:
1. JOINT IS TO BE ASSEMBLED PER AASHTC BRIDGE CONSTRUCTION SPECIFICATION SEC 264.2.4.
2, BAND MATERIALS AND/OR COATING CAN VARY BY LOCATION. CONTACTYGUR CONTECH REPRESENTATIVE FOR AVAILABILITY.
3. BANDSARE SHAPEDTO MATCH THE PIPE -ARCH WHEN APPLICABLE.
4. BANDS ARE NORMALLY FURNISHED AS FOLLOWS:
• 12" THRU 48" 1-PIECE
• 54'THRU96'2-PIECES
• 102' THRU 144' 3-PIECES
5. BAND FASTENERS ARE ATTACHED WITH SPOT WELDS, RIVETS OR HAND WELDS.
6. ALL CMP IS REROLLED TO HAVE ANNULAR END CORRUGATIONS OF 22/3'k112'
7. DIMENSIONS ARE SUBJECT TO MANUFACTURING TOLERANCES.
S. ORDER SHALL DESIGNATE GASKET OPTION, IF REQUIRED (SEE DETAILS ABOVE).
H-12 HUGGER BAND DETAIL
NOT TO SCALE
20 MIL PE
IMPERMEABLE
LINER OVER
TOP OF PIPE
LIMITS OF
(IF REQUIRED)
REQUIRED
_ BACKFILL
T3��T:yP�36- SEE TYPICAL
BACKFILL DETAIL
NOTES
TYPICAL SECTION VIEW
2161iI161RISTLIRM
NOTE: IF SALTINGAGENTS FOR SNOW AND ICE REMOVAL ARE USED ON OR NEAR THE
PROJECT, A GEOMEMBRANE BARRIER IS RECOMMENDED WITH THE SYSTEM. THE
GEOMEMBRANE LINER IS INTENDED TO HELP PROTECT THE SYSTEM FROM THE
POTENTIAL ADVERSE EFFECTS THAT MAY RESULT FROM A CHANGE IN THE
SURROUNDING ENVIRONMENT OVER A PERIOD OF TIME. PLEASE REFER TO THE
CORRUGATED METAL PIPE DETENTION DESIGN GUIDE FOR ADDITIONAL INFORMATION.
I-
z
w
0
w
an
a
a
5a
BEDDIN� G 3
)UNDAT
TRENCH
o�E ,
EMBANKMENT CONDITION
F,�pr
lten
ski
a riflct
DEBRIS CAGE
I /2' zinc plated hook
attached with 3/9' fattener
�� ® t-1/0' die hole.
Isometric
611Vf1UU11
1/4' HDPE plate (optional)
_ HnPE Oluctu,al nlnzrr nit
2-1/8" hales and 1/4' Plato
�izoi 6, Plaza.
9olullont lre or equal
mown vlln opuon.l plot.
"npF ml-tclurml pinslic iit"
'Jp" hole. ..it 1/4- plate
•.ufocturel Ey Pleahe
Inn. or c4'•1
PLASTIC
W
SOLUTIONS ' Rnt a:188
anemrr Yt aW4
INC. aY9-BYY-6Y2Y
rw.plelie-Iduze eom
UNDERGROUND DETENTION SYSTEM MINIMUM TRENCH & BACKFILL REQUIREMENTS
1. THE TRENCH CONTAINING THE TRIPLE RUN OF 120" CMP STORM PIPE SHALL HAVE
A 468" WIDE TRENCH. THE TRENCHES CONTAINING THE 15" BYPASS HDPE PIPE AND
THE 15" OUTFALL PIPE SHALL HAVE 36" WIDE TRENCHES. CONTRACTOR SHALL WRAP THE
EXCAVATED TRENCHES WITH A 6 OUNCE FILTER FABRIC CLOTH. A SUITABLE FOUNDATION
SHALL BE BENEATH THE TRENCHES' FILTER FABRIC CLOTHS.
2. TRENCHES TO INCLUDE A 6" #57 STONE BED AT 95% COMPACTION BENEATH THE HP
STORM PIPES.
3. TRENCHES SHALL BE BACKFILLED WITH #57 STONE AT 95% COMPACTION AND SHALL
EXTEND A MINIMUM OF 6" VERTICALLY ABOVE THE CROWN OF THE STORM PIPES.
4. THE TOP OF THE #57 STONE SHALL BE COVERED WITH A 6 OUNCE FILTER FABRIC CLOTH,
OVERLAPPING THE PREVIOUSLY INSTALLED CLOTH THAT SURROUNDS THE BOTTOM AND
SIDES OF THE TRENCHES.
5. SUITABLE FILL REACHING THE FINISHED GRADES SHALL BE APPLIED ABOVE THE TOP
LAYER'S FILTER CLOTH, MEETING MINIMUM PIPE MANUFACTURER'S REQUIREMENTS TO
PREVENT FLOATATION AND ENSURE PIPE INTEGRITY IS MAINTAINED.
6. A MINIMUM COVER OF 12" IS REQUIRED ABOVE THE CROWN OF THE STORM PIPES.
7. SEE THE'TYPICAL BACKFILL DETAIL' ON THIS SHEET FOR ADDITIONAL UNDERGROUND
DETENTION SYSTEM PIPE REQUIREMENTS.
DIAMETER
MIN.
COVER
CORR.
PROFILE
T-10"
12"
1 112" x 1/4"
12".48"
12"
2 ZY x 1/2"
54"-96"
12"
Y x V, 5" x V
102"-144"
CIS
Y x 1", 5" x 1"
INITIAL FILL ENVELOPED 1a
BACKFILL REQUIREMENTS FOLLOW THE GUIDELINES OF AASHTO LRFD BRIDGE DESIGN (SEC 12) AND CONSTRUCTION (SEC 26)
1 NINIMU M TRENCH WIDTH MUST ALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE.
THE MINIMUM TRENCH WIDTH (12.6.6.1):
PIPE s 12": D+16"
PIPE> 12": 1.5D+12"
la MINIMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE (12.6.6.2):
PIPE <24": 3.OD
PIPE 24"- 144": D+4'0"
PIPE > 144": D + 10'0"
2 THE FOUNDATION UNDER THE PIPE AND SIDE BACKFILL SHALL BE ADEQUATE TO SUPPORT THE LOADS ACTING UPON IT(26.5.2).
3 BEDDING MATERIAL SHALL BE A RELATIVELY LOOSE MATERIAL THAT IS ROUGHLY SHAPED TO FIT THE BOTTOM OF THE PIPE, AND A
NINIMU M OF TWICE THE CORRUGATION DEPTH IN THICKNESS, WITH THE MAXIMUM PARTICLE SIZE OF ONE-HALF OF THE CORRUGATION
DEPTH (26.3.8,1, 26.5.3).
4 CORRUGATED STEEL PIPE (CSP /HEL-COR).
5 HAUNCH ZONE MATERIAL SHALL BE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION (26.5.4).
5a INITIAL BACKFILL FOR PIPE EMBEDMENTTO MEET AASHTO A-I,A-2 ORA-3 CLASSIFICATION, ORAPPROVED EQUAL, COMPACTEDT090%
STANDARD PROCTOR (T 99). MAXIMUM PARTICLE SIZE NOT TO EXCEED W (12.4.1.2). ALL LIFTS PLACED IN A CONTROLLED MANNER, IT IS
RECOMMENDED THAT LIFTS NOT EXCEED AN B" UNCOMPACTED LIFT HEIGHTTO PREVENT UNEVEN LOADING, AND THE LESSER OF 113
THE DIAMETER OR 24" AS THE MAXIMUM DIFFERENTIAL SIDE -TO -SIDE (26.5.4).
6 INITIAL BACKFILL ABOVE PIPE MAY INCLUDE ROAD BASE MATERIAL (AND RIGID PAVEMENT IF APPLICABLE). SEE TABLE ABOVE.
6a TOTAL HEIGHT OF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS IS MEASURED FROM TOP OF PIPE TO BOTTOM OF
FLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT (12.6.6.3).
7 FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS SHALL FOLLOW THE PROJECT PLANS AND SPECIFICATIONS
PERTHE ENGINEER OF RECORD (26.5.4.1).
NOTES:
• GEOTEXTILE SHOULD BE CONSIDERED FOR USE TO PREVENT SOIL MIGRATION INTO VARYING SOIL TYPES (PROJECT ENGINEER).
• FOR MULTIPLE BARREL INSTALLATIONS THE RECOMMENDED STANDARD SPACING BETWEEN PARALLEL PIPE RUNS SHALL BE PIPE DIA./2
EUT NO LESS THAN 12", OR 36" FOR PIPE DIAMETERS 72" AND LARGER.
• CONTACTYOUR CONTECH REPRESENTATIVE FOR NONSTANDARD SPACING (TABLE C12.6.7-1).
TYPICAL BACKFILL DETAIL
NOT TO SCALE
PLAN
FRONT
48'Oto 90"0 FITTING REINFORCEMENT
MAY BE REQUIRED BASED ON HEIGHT OF
COVER AND LIVE LOAD CONDITION
TYPICAL MANWAY DETAIL
NOT TO SCALE
36"0 MAX., ACCESS CASTING REINFORCING TABLE o� vk
WITH GRADE RINGS AS REQUIRED, TO
BE PROVIDED AND INSTALLED BY "'BEARING
TEMPORARY COVER FOR CMP CONTRACTOR. MAYBE TOP MOUNTED Q) CMP "BEARING
R. LINS'Z
CONSTRUCTION LOADS PROTECTION (AS SHOWN) OR RECESSED. w RISER A B 0 REINFORCING PRESSURE 0
0 RIM/FINISHED o (PSF) U TT 35791 ,�
FINISHED SLAB ----
HEIGHTOF - GRADE T T GRADE __ =t= VARIES N 24 4'0 26" #5@10"OCEW 2,540 "�,� �6�07�21 F�t,V4
COVER a° a ° 4'x4' #5 @ 10" OCEW 1,900 O.c,�, tir,
a ° ° a 4' 6"0 #5 @ 10" OCEW 2,260 ZONAL E
° 30" 4'-6' x 4'-6" 32„ #5 @ 9" OCEW 1,670
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11%q
GASKET MATERIAL 0 CMP RISER ¢ 3fi" 5 X 5 38 #5 @ 8" OCEW 1,500
SUFFICIENT TO PREVENT a 65
CONSTRUCTION LOADS SLAB FROM BEARING ON 0 42" T-6"O 44„ #5 @ 8" OCEW 1,490
RISER TO BE PROVIDED BY _ 5'-6" x 5'-6" #5 @ 8" OCEW 1,370
FOR TEMPORARY CONSTRUCTION VEHICLE LOADS, AN EXTRAAMOUNT OF COMPACTED COVER MAY BE REQUIRED OVER CONTRACTOR. OB 11"TYP. 610 #5 @ 7" OCEW 1,210
THE TOP OF TH E PIPE. TH E HEIGHT -OF -COVER SHALL MEET THE MINIMUM REQUIREMENTS SHOWN IN THE TABLE BELOW. SECTION VIEW 48 61x 6' 50 #5@To OCEW 1,270
THE USE OF HEAVY CONSTRUCTION EQUIPMENT NECESSITATES GREATER PROTECTION FOR THE PIPE THAN FINISHED
GRADE COVER MINIMUMS FOR NORMAL HIGHWAYTRAFFIC.
AXLE LOADS
PIPE SPAN,
INCHES
(kips)
18-50 50-75 1 75-110 1 110-150
MINIMUM COVER
(FT)
2.0
2.5
3.0
3.0
12-42
48-72
3.0
3.0
3.5
4.0
7B-120
3.0
3.5
4.0
4.0
126-144
3.5
4.0
4.5
4.5
*MINIMUM COVER MAYVARY, DEPENDING ON LOCAL CONDITIONS. THE CONTRACTOR MUST PROVIDE THE ADDITIONAL
COVER REQUIRED TO AVOID DAMAGE TO THE PIPE. MINIMUM COVER IS MEASURED FROM THE TOP OF THE PIPE TO
THE TOP OF THE MAINTAINED CONSTRUCTION ROADWAY SURFACE.
CONSTRUCTION LOADING DIAGRAM
NOT TO SCALE
ASSUMED SOIL BEARING CAPACITY
ACCESS CASTING NOT SUPPLIED BY CONTECH
7D
/�CO A A
Ly �p B
#4 DIAGONAL TRIM
#4 DIAGONAL TRIM v BAR (TYP.4 PLACES),
BAR P. 4 PLACES), I ' ` SEE NOTE 7.
SEE NOTE 7. - t ---iti ---- - -t- t---- -- ---�C----�
2"COVER r----yt ---� - - -- tr-----1
-� t---
TYP)
%
< j
,0,\
+I-f i ri-- ry+ +� --4; F.I
i�
OPENING IN
OPENING IN PROTECTION
�-� -----�f--f r --- ---�- - - f-- -Q
PROTECTION --- I- -----�-- -I ---- SLAB FOR --- - _- -- -- --�- - -
SLAB FOR
tl I t
ACESS i
ACCESS
,�
I- es-
I �tr I'
INTERRUPTED BAR
ol _-- _J
ce- � -
L_ Jl-- 1�___4----1-----J
REPLACEMENT,
NTERRUPTED BAR
I V
SEE NOTE 6.
SPECIFICATION FOR CORRUGATED STEEL PIPE -ALUMINIZED TYPE 2 STEEL
REPLACEMENT, SEE'/I
I
SCOPE HANDLING AND ASSEMBLY NOTE 6.
STANDARD
STANDARD
THIS SPECIFICATION COVERS THE MANUFACTURE AND
SHALL BE IN ACCORDANCE WITH RECOMMENDATIONS OF THE
REINFORCING, REINFORCING,
OB
INSTALLATION OF THE CORRUGATED STEEL PIPE (CSP) DETAILED IN
NATIONAL CORRUGATED STEEL PIPE ASSOCIATION (NCSPA)
SEE TABLE SEE TABLE
THE PROJECT PLANS.
INSTALLATION
ROUND OPTION PLAN VIEW
SQUARE OPTION PLAN VIEW
MATERIAL
SHALL BE IN ACCORDANCE WITH AASHTO STANDARD
THE ALUMINIZED TYPE 2 STEEL COILS SHALL CONFORM TOTHE
SPECIFICATIONS FOR HIGHWAY BRIDGES, SECTION 28, DIVISION II
NOTES:
7. TRIM OPENING WITH DIAGONAL#4 BARS, EXTEND BARS
APPLICABLE REQUIREMENTS OF AASHTO M274 OR ASTM A929.
OR ASTM A798 AND IN CONFORMANCE WITH THE PROJECT PLANS
MINIMUM OF 12" BEYOND OPENING, BEND BARS AS REQUIRED
AND SPECIFICATIONS. IF THERE ARE ANY INCONSISTENCIES OR
1.
DESIGN IN ACCORDANCE WITH AASHTO, 17th
TO MAINTAIN BAR COVER.
PIPE
CONFLICTS THE CONTRACTOR SHOULD DISCUSS AND RESOLVE
EDITION AND ACI 350.
WITH THE SITE ENGINEER.
8. PROTECTION SLAB AND ALL MATERIALS TO BE PROVIDED AND
THE CSP SHALL BE MANUFACTURED IN ACCORDANCE WITH THE
2.
DESIGN LOAD HS25.
INSTALLED BY CONTRACTOR.
APPLICABLE REQUIREMENTS OF AASHTO M36 OR ASTM A760. THE
IT IS ALWAYS THE RESPONSIBILITY OF THE CONTRACTOR TO
PIPE SIZES, GAGES AND CORRUGATIONS SHALL BE AS SHOWN ON
FOLLOW OSHA GUIDELINES FOR SAFE PRACTICES.
3.
EARTH COVER = V MAX.
9. DETAIL DESIGN BY DELTA ENGINEERS, ARCHITECTS AND LAND
THE PROJECT PLANS.
SURVEYORS, ENDWELL, NY.
4.
CONCRETE STRENGTH =4,000 psi
ALL FABRICATION OF THE PRODUCT SHALL OCCUR WITHIN THE
UNITED STATES.
5.
REINFORCING STEEL= ASTM A615, GRADE 60.
6.
PROVIDE ADDITIONAL REINFORCING AROUND
OPENINGS EQUALTOTHE BARS INTERRUPTED,
MANHOLE CAP DETAIL
MATERIAL SPECIFICATION
HALF EACH SIDE. ADDITIONAL BARS TO BE IN THE
NOT TO SCALE
SAME PLANE.
NOT TO SCALE
24"
3/4" (#6) REBAR CAN BE CUT FLUSH
TO OUTSIDE OF RAIL
(BAR LENGTH = 163/4") OR BAR CAN
EXTEND BEYOND RAILY2"t
ALL STEEL PER
ASTM A36
BRICATION TOLERANCE: t44"
AT BA R AN D REBAR: MILL
�LERANCE APPLIES
12" TYP.
CENTER TO CENTER W HOLE w! %" REBAR RUNG,
RUNG SPACING io WELD REBAR TO RUNG ON
OUTSIDE OF STEEL RAIL
2Y2" x 3/e" FLAT BAR SIDE RAIL
PLAN SIDE
NOTES:
1. LADDERS CAN BE MADE IN 20'.0" STANDARD LENGTHS AND CUT TO FIT
2. ALL MATERIAL TO MEET ASTM A36
3. LADDER TO BE HOT DIPPED GALVANIZED PER ASTM A-123 AFTER
FABRICATION IS COMPLETE
STANDARD LADDER DETAIL
NOT TO SCALE
PART NO. HALAGVL16
PROVIDE MINIMUM OF 4 ATTACHMENT
ANGLES (2 ON EITHER SIDE OF LADDER RAIL)
TO CONNECT LADDER TO RISER EXTENSION
RISER w/ LADDER AND STEPS
IF EXTENSION IS REQUIRED
RISER w/ LADDER
AND STEPS
MAINLINE CMP
22/3xy,5x1,3x1,ETC.
NOTE:
THIS DRAWING IS INTENDED TOAPPLYTO LADDERS
INSTALLED IN RISERS HAVING A DIAMETER OF 30" OR
LARGER. DUE TO SPACE CONSTRAINTS AND LIMITED
ACCESSIBILITY, THE PRACTICALITY AND SUITABILITY OF
UTILIZING RISERS SMALLER THAN 30" DIAMETER
AND/OR INCORPORATING LADDERS IN THESE SMALLER
DIAMETER RISERS SHOULD BE ADDRESSED BYTHE
OWNER AND PROJECT ENGINEER
'NOTE: WHEN RISER EXTENSIONS
ARE USED, THE PLANT SHOULD
CUT 3" FROM THE SIDE RAILS AS
SH OWN
'3" FROM BOTTOM OF LADDER
RAIL TO RISER JOINT
*3" FROM TOP OF LADDER
RAIL TO RISER JOINT
LADDER RAILS AND RUNGS
(2)y" FILLET WELDS 1" LONG
L5"x3"xY4'x16"LONG ATV'C"
ATTACH MENT AN(
MIN I MU M OF 4 ANGLES P
SPACING. LONG LEG TO
LADDER SECTION, (2 EACH SIDE
4
PROJECT OUT. WELD TOP
LADDER) 6' MAX. SPACI
V-6"
AND BOTTOM OF 3" LEG TO EACH
VERTICAL
MAX.
CORRUGATION CREST
(THESE ANGLES SHOULD BE USED
a
FOR LARGER DIAMETER
a
MAINLINES INHERE ADDITIONAL
`�
STEPS ARE NEEDED)
6" FROM RUNGTO
RISER JOINT
8" FROM RUNG TO
RISER JOINT
SECTION A -A
RISER LADDER DETAIL
NOT TO SCALE
(4)Y6" FILLET WELDS FROM
EACH ANGLE CORRUGATION
CREST (2WELDS EACH SIDE)
(4) 43" x 3" x 3/6" _
5Y2" LONG
(2)y" FILLET WELDS
1" LONG FROM EACH ANGLE
TO LADDER RAIL
RISER NORMALLY CMP
WITH 2213" xY2"
CORRUGATIONS
(4)Y8" FILLET WELDS
(4)y6"FILLETWELDS
FROM EACH ANGLE TO
FROM EACH ANGLE TO
CORRUGATION CREST
CORRUGATION CREST
(2 WELDS EACH SIDE)
(2 WELD EACH SIDE)
L3"x3"x3//j
L3"x3"x3/18"
5Y2" LONG
SY2" LONG
LADDER RAILS
AND RUNGS
PLAN
ELEVATION
RI:
LADDER R4
AND RUNG
Z
O
Ln
AAte-,
Vl CO
CO
Z z U)
0"'
U)
O 11 LU
Ln
w 0 Z Z
H O
U`) w
W w
Ine
F_
Z
a
i
Cl?
C'7
CA
CV
M
1-
�
CV
CV
W Q
Q
J
Q
>
Dew
LI J ,
• LL]
C-
Q -
z
J
Lu
L9
LI.J
0
_j
0
z
�I
w
Q
1
WU
=
N
i
w
z
LI.J
~
<
Q
Lin
C2
U)
O
� I
Lu
Z
U
O
Nw
L L
\��
/
l
(j)
-
JujNj
Q
(D
c �
n
H
LU
w
O
w
IY
2
a
to
JOB NO.
202196
SCALE
AS SHOWN
SHEET NO.
10