HomeMy WebLinkAboutWPO202100033 Plan - VSMP 2022-06-02EROSION & SEDIMENT CONTROL NOTES
ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES
WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION
AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS 9VAC25-840-40 EROSION AND SEDIMENT CONTROL
REGULATIONS.
ES-2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE,
ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL
INSPECTION.
ES-3: SEDIMENT BASINS, TRAPS, AND ANY OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A
FIRST STEP AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCES TAKE PLACE. PERIMETER DIKES AND
SEDIMENT BARRIERS SHALL BE CONSTRUCTED AS A SECOND STEP IN ANY LAND DISTURBING ACTIVITY.
ES-4: STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS
IMMEDIATELY AFTER INSTALLATION.
ES-5: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN INCLUDING THE NARRATIVE SHALL BE
MAINTAINED ON THE SITE AT ALL TIMES.
ES-6: PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS
(INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A
SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY.
ES-7: THE CONTRACTOR IS RESPONSIBLE FOR THE INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES
NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY.
ES-8: ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND
DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED.
ES-9: DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE.
ES-10: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF
PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION
CONTROL DEVICES SHALL BE MADE IMMEDIATELY.
ES-11: PERMANENT OR TEMPORARY SOIL STABILIZATIONS SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS
AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN
SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE A FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED FOR
LONGER THAN 14 DAYS). PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR
MORE THAN ONE YEAR.
ES-12: A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMANENTLY
STABILIZED. PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT,
IS UNIFORM, MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION.
ES-13: DURING CONSTRUCTION OF THE PROJECT SOIL STOCK PILES SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT
TRAPPING MEASURES.
ES-14: CUT AND FILL SLOPES SHALL BE CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. SLOPES THAT ARE
FOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OR PERMANENT STABILIZATION SHALL BE PROVIDED WITH
ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED.
ES-15: ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT
SEDIMENT WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO
REMOVE SEDIMENT.
ES-16: BEFORE NEWLY CONSTRUCTED STORM WATER CONVEYANCE CHANNELS OR PIPES ARE MADE OPERATIONS,
ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN
BOTH THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL.
ES-17: WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE TAKEN TO MINIMIZE
ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE
DURING CONSTRUCTION NONERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND
COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS
ES-18: WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES MORE THAN TWICE IN A SIX-MONTH
PERIOD, A TEMPORARY VEHICULAR STREAM CROSSING CONSTRUCTED OF NONERODIBLE MATERIAL SHALL BE PROVIDED.
ES-19: THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE
IS COMPLETE.
ES-20: TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT
FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 14 DAYS.
ES-21: UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION
TO OTHER APPLICABLE CRITERIA:
A. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME.
B.EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES.
C.EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING
DEVICE OR BOTH, AND DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING STREAMS OF
OFF -SITE PROPERTY.
D.MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND
PROMOTE STABILIZATION.
E. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS.
F. APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH.
ES-22: WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC ROADS, PROVISIONS SHALL BE
MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT
IS TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED THOROUGHLY AT THE END OF
EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROAD BY SHOVELING OR SWEEPING AND TRANSPORTED TO A
SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS
MANNER.
ES-23: ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL
SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY
THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE
DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND
SEDIMENTATION.
ES-24: ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT
RAINFALL. THEY WILL BE INSPECTED FOR UNDERMINING, DETERIORATION, EROSION, AND EXCESS DEPOSITED MATERIAL. ALL
DEFICIENCIES WILL BE CORRECTED IMMEDIATELY. EXCESS MATERIAL WILL BE SPREAD ON THE SITE IN A MANNER WHICH
WILL NOT LEAD TO FURTHER EROSION POTENTIAL.
TIFROXELL POULTIRY HOUSE
PROJECT FILE #: WP0202100033
ENTRANCE \
\s
APPROXIMATE LOCATION OF `ohs!
TRANSITION FROM PUBLIC II
ROAD TO PRIVATE DRIVE 'PO
L LN. DYERS MIL1r1
/ RT. 713
EXISTING DRIVEWAY I� / \\ �1 EXISTING SERVICE ENTRANCE ✓ `rs
TO SITE \ O
900.
\X
GRAPHIC SCALE
/ 300' 0 300' 600'
SCALE: 1 "=300'
APPROVED
by the Albemarle County
Commu6tv2 �v2el2opment Department
Date
File WP0202100033
LEGEND
EXISTING BUILDING
PROPOSED BUILDING
PROPOSED ROAD/EOP
EXISTING ROAD
APPROXIMATE PROPERTY LINE
- - • -
SURVEYED PROPERTY LINE
0
GRAVEL AREA
0
CONCRETE AREA
REVISION SYMBOLS
1230
EXISTING CONTOURS
1290
PROPOSED CONTOURS
00000o
PROPOSED/EX DITCH OR SWALE
+ 28.5 PV
PROPOSED SPOT ELEVATION
4--
DRAINAGE FLOW
DISTURBED AREA
PROPOSED EASEMENT
VICINITY MAP
SCALE: 1"=1000'
soa
1
696' /
SITE DESIGN:
BLACKWELL ENGINEERING
ATTN: NATHAN BLACKWELL
566 EAST MARKET STREET
HARRISONBURG, VA 22801
540-432-9555
DEVELOPER:
BROC TROXELL
7369 DYERS MILL LANE
SCOTTSVILLE, VA 24590
570-4120364
PROPERTY INFO:
TM #129-5
7369 DYERS MILL LANE
SCOTTSVILLE, 24590
MAN. DISTRICT- SAMUAL MILLER
AREA = 399.71 ACRES
ZONED: Rural Areas
PROPOSED USE: AGRICULTURAL
- POULTRY HOUSES
FEMA FLOOD ZONE: X
DISTURBED AREA = 8.10 AC
\ \ \ \ \ \ \ \ \ \ \ \1NPSOS1FD SWIM FAC -N7( EASEMENT - / \ \ , \ / / SEDIME4T-BASIN TO BE CONVERTED TO DRY POND ,Ai- \ \ \ \
`\ -TdE'END OF CONSTRUCTION.SEE RETAIL -OFT SHEET 3. \ \ \ \
------ JM
NOTE:
FOR THE PURPOSES OF PLAN REVIEW AND APPROVAL, NATHAN
H. KNOPP, P.E. IS THE CERTIFIED RESPONSIBLE LAND
DISTURBER (CRLD). CONTRACTOR SHALL PROVIDE
REPLACEMENT CERTIFICATE AT TIME OF CONSTRUCTION TO THE
COUNTY E&SC ADMINISTRATOR.
NOTE:
CONTRACTOR TO PROVIDE A CERTIFIED
RESPONSIBLE LAND DISTURBER UPON PERMIT
REQUEST FROM COUNTY E&SC ADMINISTRATOR.
CRLD FOR THIS PROJECT IS:
NAME:
CERT.#
ROUGH. UNADJUSTED CUT/FILL
ESTIMATES
CUT- 22,000 YD3
FILL- 21,600 YD3
NET- 400 YD3 CUT
NOTE:
THE ENTIRE STORMWATER PLAN WILL BE RE-EVALUATED
AND NEW CONTROL AND TREATMENT MEASURES
IMPLEMENTED AS NEEDED FOR ANY CHANGE TO OPEN
SPACE/ MANAGED TURF/ IMPERVIOUS COVER.
OWNER RECOGNITION:
V 95. - - \ 7 ,
9 - - INV
i i I l
~ - 496--- \ \45
SEEDING & MULCHING TABLE \� PV\01.1 67 p \\ 15" HOPE INLET OR EQUIV. 498 PR I N od•0
V TOP=500.3 103 LF OF 15" 63 X 704 178' LF OF 15" pV
ALL AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH TEMPORARY OR PERMANENT \ ' \ \ 15" INVERT=495.6NHDPE PIPE ® 1.4% 500 POULTRY HOUSE HOPE PIPE ® 1.1% 15" HOPE INLET OR EQUIV.
SEEDING WITHIN 7 DAYS FOLLOWING FINISH GRADING. SEEDING SHALL BE DONE ACCORDING TO \ \ TOP=500.3 /1
STANDARD & SPECIFICATION 3.31 TEMPORARY OR 3.32 PERMANENT SEEDING, OF THE VIRGINIA \ , \ \ 07.7 pV 15" INVERT -
STANDARD FFE=502f 15" INVERT=496.0 \ /
EROSION AND SEDIMENT CONTROL HANDBOOK AND SEEDING
TECHNICAL BULLETIN AS APPLICATION \ \ 1 \\\ 0j 9 �V _ 5p2 HEIGHT -15' 15" INVERT=495.9 PV 0 9 \.7+pV dal � t\
RATES FOR MULCH, FERTILIZER, LIMESTONE AND SEEDING MIXTURE SHALL BE AS INDICATED BELOW. \
TEMPORARY PERMANENT \\ ■ s \ 1.� pVi - - - - __-_501 - -41 - \ __-Sol
SPECIES LBS/ACRE SPECIES LBS/ACRE ) \ 23.0' - - - - - - - - - - \ 0 • PV \ \ - - - - - - - - - - \ 01. \ \ \ \
ANNUAL RYEGRASS & CEREAL RYE 50-100 KENTUCKY 31 FESCUE 128 I / P1v 01.1 +Pw 01 4 .2 pV+ 37 LF 15 - - _ .2 pV+ \ 37 LF F 15" \ .2 pV+ \ \
`�- HDPE-P E� 4% / \ ` \ \ HOPE RIPE 0 1.1%
ANNUAL RYE GRASS 60-100 RED TOP GRASS 2 I\ / I - - - - - - - _ " 07, \ - \ \ 0
� \ .7 pV1 - - 501 - - 6 a�� , + - _ � V-01_ � \
GERMAN MILLET 50 SEASONAL NURSE CROP* 20 p 23.0' - - - - - - - - - \ 01 +� -
' I � �.� pV - Q1.9 PV 0 .
TOTAL 160-250 TOTAL 150 01 \ PROPOSED
*USE SEASONAL NURSE CROP AS INDICATED BELOW ( , \ 7 PV ' ' PN 01• `
63 X 704 15" HOPE INLET OR EQUIV.
El 75.0' _
❑ SEPT. 1st - FEB. 15th ,�$ ANNUAL RYE & CEREAL RYE MAR. - MAY 15th ANNUAL RYE I N o \ 15" HOPE INLET OR EQUIV. 90.5 LF OF 15" TOP=500.3
I � N TOP=500.3 HOPE PIPE ® 1.2% POULTRY HOUSE so LF OF 1s" �
1 f I HOPE PIPE ® 1.1% 15" INVERT=496.4 _
❑ FEB. 16th - APR. 30th ANNUAL RYEGRASS ❑ MAY 16th - AUG. 15th FOXTAIL MILLET I� , 0}.�ptT - 15" INVERT=496.1 FFE=502f 15" INVERT=496.3-
\ 0 G PV o1.1 15" INVERT=496.0 , _ _ \ \
❑ MAY 1st -AUG. 31st GERMAN MILLET ❑ AUG. 16th - OCT. ANNUAL RYE 1 HEIGHT ^' 5Air PN TEMPORARY UNER�ON
01.g _ - _ p19 DIKE TO BE REMOVED AT
❑ NOV. -FEB. WINTER RYE \ ' - - - _ _ ® \ / �� / \ - ® - \�1'HG END OF PROJECT
FERTILIZER: 10-10-10 0 450 LBS/ACRE (10 LBS/1,000 SF) FERTILIZER: 10-20-10 0 500 LBS/ACRE (12 LBS/1,000 SF) I \ 9 500 - - 01 I 9 500 - 01• _ _ \ - - - - - -
PULVERIZED AGRICULTURAL UMESTONE: 2 TONS/ACRE (90 LBS/1,000 SF) PULVERIZED AGRICULTURAL UMESTONE: 2 TONS/ACRE (90 LBS/1,000 SF) _ - -
- - - - - 504 - _ \ _ TEMPORARY DITCH TO BE
- - -\ -
ORGANIC MULCH MATERIALS AND APPLICATION RATES _ -_-------____-- - - - _ - REMOVED AT THE END ____----�-��----- -- --------__ � OF PIiO'JEG[
VESCH TABLE 3.35-A
RATES
MULCHES PER ACRE PER 1000 SF NOTES:
1 j - 2 TONS 70 - 90 Ibs. FREE FROM WEEDS AND COARSE MATTER. MUST BE ANCHORED. no -No ` 1♦ ` 1♦ - - / - - - -' / / \ - ` / LITTER
STRAW OR HAY (MIN. 2 TONS FOR SPREAD WITH MULCH BLOWER OR BY HAND / i / / -' \ \ , STORAGE \�
WINTER COVER) 'Y / _�-'�� \ BUILDING pV \
FIBER MULCH MINIMUM 35 Ibs. DO NOT USE AS MULCH FOR WINTER COVER OR DURING HOT, DRY - / EXTRA NOTES: - - _ _ , �� - - - _ - - - _ _ \ 50' X 50'
PERIODS. APPLY AS SLURRY - - \ \ ` �, FFE=504.5 , \ ` /\
1500 Ibs. 1. THE OWNER AND CONTRACTOR MAY NEED TO MAKE MODIFICATIONS TO THE PLANS TO MATCH FIELD CONDITIONS. THE - - - - - EXISTING
CONTRACTOR SHALL VERIFY THAT EXISTING TOPO LINES ON PLANS GENERALLY DISPLAY FIELD CONDITIONS. IF A ��- - - - \ \-
CUT OR SHREDDED IN 4-6" LENGTHS. AIR DRIED. DO NOT USE _ - SIGNIFICANT DISCREPANCY IS FOUND, CONTRACTOR SHALL NOTIFY ENGINEER. - - - - - - - - \ \ \ BUILDING *M
CORN STALKS 4 - 6 tons 185 - 275 Ibs. IN FINE TURF AREAS. APPLY WITH MULCH BLOWER OR BY HAND. -' A�PPROX 50'X36' \
2. TOPO INFORMATION WAS OBTAINED FROM BLACKWELL ENGINEERING ON MARCH 3, 2021. - - - - \ \ \ _ GRAPIfIC SCALE
FREE OF COARSE MATTER, AIR-DRIED. TREAT WITH 12 Ibs. � - - - - � � ` � � ' S0' 0 50' 100'
WOOD CHIPS 4 - 6 tons 185 - 275 Ibs. NITROGEN PER TON. DO NOT USE IN FINE TURF AREAS. APPLY 3. PROPERTY LINE OBTAINED FROM COUNTY GIS. TO BE USED AS A GENERAL REFERENCE ONLY. - - - - -4•% - \ - \
WITH MULCH BLOWER, CHIP HANDLER, OR BY HAND.
4. EROSION SEDIMENT CONTROL MEASURES TO BE INSTALLED FIRST, GRADING OF BUILDING PAD TO PROCEED ONCE / - - - �,g¢ - - - - - - - - - -
\ \ \ / \ SCALE: 1"=50'
BARK CHIPS OR FREE OF COARSE MATTER. AIR-DRIED. DO NOT USE IN FINE TURF � MEASURES ARE IN PLACE AND STABILIZED WITH SEED/MULCH. ROAD TO BE GRAVELED, AND OPEN AREAS TO BE SEEDED
SHREDDED BARK 50 - 70 c.y. 1 - 2 c.y. AREAS. APPLY WITH MULCH BLOWER, CHIP HANDLER, OR BY HAND ONCE GRADING ALLOWS. CONSTRUCTION OF BUILDINGS TO COMMENCE. ESC MEASURES TO BE REMOVED AND SEEDED / _ _ _ _ _
ONCE COUNTY ADMINISTRATOR ALLOWS. //---- --�
* WHEN FIBER MULCH IS THE ONLY AVAILABLE MULCH DURING PERIODS WHEN STRAW SHOULD - 5. SLOPES GREATER THAN 3:1 ARE TO BE TREATED AS CRITICAL AREAS.
BE USED, APPLY AT A MINIMUM RATE OF 2000 Ibs./ac. OR 45 Ibs./1000 sq. ft.-'��
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Date: 3/21 /21
Scale: 1 "=50'
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Dates
7/6/21
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POND OUTLET PIPE PLAN
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NOTE:
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-APPROX 927' OF 18" HOPE PIPE OR EQUIVALENT
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AS ACTUAL FIELD
CONDITIONS
NLLOW
ADDITIONAL
GRADING MAY
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SEE
DUTLET PROTEC
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& LEVEL SPREADER
DETAIL (SHEET
5)
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Date: 3/21 /21
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2
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Job No. 2888
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11+00
12+00
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14+00
15+00
16+00
17+00
18+00
19+00
HSG B
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(4.81 SITE ACRES)
(9.97 OFFSITE ACRES)
0
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6
hti0 GRAPHIC SCALE
200' 0 200' 400'
WPO BUFFER (FROM GIS) SCALE: 1"=200'
CRITICAL SLOPES (FROM GIS)
HSG D /
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ESC DRAINAGE AREAS
WPO BUFFER (FROM GIS)
CRITICAL SLOPES (FROM GIS)
WATER QUALITY MASTER PLAN
HYDROLOGIC
SOIL GROUP
0 B SOIL
0 D SOIL
B SWIM FOREST & OPEN
SPACE EASEMENT
/ 0 IMPERVIOUS
PROJECT AREA
/ EASEMENT = 17.50 ACRES
B-SOIL = 5.18 ACRES (60.87 % OF DIST. AREA)
D-SOIL = 0.05 ACRES (00.59 % OF DIST. AREA)
IMPERVIOUS = 3.28 ACRES (38.54 % OF DIST. AREA)
NOTE: THE SWM FOREST AND OPEN SPACE EASEMENT IS SUBJECT TO THE GUIDANCE SET
FORTH BY DIED IN THE VIRGINIA STORMWATER MANAGEMENT PROGRAM. THE AREAS
WILL REMAIN UNDISTURBED IN A NATURAL, VEGETATED STATE, EXCEPT FOR ACTIVITIES
AS APPROVED BY THE LOCAL PROGRAM AUTHORITY, SUCH AS FOREST MANAGEMENT,
CONTROL OF INVASIVE SPECIES, REPLANTING AND REVEGETATING, PASSIVE RECREATION
(E.G., TRAILS), AND LIMITED BUSH HOGGING TO MAINTAIN DESIRED VEGETATIVE
COMMUNITY (BUT NO MORE THAN FOUR TIMES A YEAR).
RECORDED AS INST #202200005852
1
200' GRAPHIC Soo LE aoo'
SCALE: 1"=200'
p 450
k6
GRAPHIC SCALE
�..,. 0 200' 400'
SCALE: 1"=200'
n
PROPOSED DRAINAGE AREAS
0.47 ACRES TO ENERGY
BALANCE POINT OF
ANALYSIS #2 (EB 2)
.50 ACRES TO DI #1
490 .17 ACRES -MANAGED TURF
f .33 ACRES IMPERVIOUS
/ a .50 ACRES TO DI #2
.17 ACRES -MANAGED TURF
.33 ACRES IMPERVIOUS
500
/ 50 i 490
480
- I �
moo .85 ACRES CULVERT #1 10
.52 ACRES -MANAGED TURF R
.33 ACRES IMPERVIOUS
450
.50 ACRES TO DI #3
.17 ACRES -MANAGED TURF
0 / .33 ACRES IMPERVIOUS
.50 ACRES TO DI #4
/ -.17 ACRES -MANAGED TURF
.33 ACRES IMPERVIOUS
h �90 i
� 62 ACRES TO CULVERT #2
�.36 ACRES -MANAGED TURF
h0� / .26 ACRES IMPERVIOUS
b rovmto �• n
TRIBUTARIES TO TOTIER CREEK
V 11
.95 ADDITIONAL ACRES TO POND
1.09 ACRES -MANAGED TURF
.86 ACRES IMPERVIOUS
POINT OF
1 (EB 1)
r �F
i
o
450
1.63 ACRES TO DITCH
#1
0.51 ACRES -MANAGED
TURF
0.37 ACRES IMPERVIOUS
0.75 ACRES -CROP
GRAPHIC
SCALWPO 1400'
BUFFER (FROM GIS) �_200'
0
200'
CRITICAL SLOPES (FROM GIS)
��
SCALE: 1 "=200'
> 1000 ACRES
r.
Date: 3/21 /21
Scale: AS NOTED
Designed by: NHK
Drawn by: BWK
Checked by: NHK
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39 Revision Dates
7/6/21 PER CO
8 12 21 PER CO.
~ 9 3 21 PER CO.
5/19/22 PER CO.
POINT A
EX DA:14.97 ACRES
PRO DA:13.47 ACRES �� 1
0
_ ENERGY BALANCE
POINT OF ANALYSIS #2
CONTROL POINT FOR SURVEY
DISTURBED AREA
8.51 ACRES
_ CONTROL POINT
I FOR SURVEY
Soo GRAPHIC Soo LE ,000'
SCALE: 1"=500'
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Drawing No.
3
of 5 Sheets
Job No. 2888
MINIMUM STANDARDS
1. Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final
grade is reached on any portion of the site. Temporary soil stabilization shall be applied within seven days to
denuded areas that may not be at final grade but will remain dormant for longer than 14 days. Permanent
stabilization shall be applied to areas that are to be left dormant for more than one year.
2. During construction of the project, soil stock piles and borrow areas shall be stabilized or protected with
sediment trapping measures. The applicant is responsible for the temporary protection and permanent
stabilization of all soil stockpiles on site as well as borrow areas and soil intentionally transported from the
project site.
3. A permanent vegetative cover shall be established on denuded areas not otherwise permanently stabilized.
Permanent vegetation shall not be considered established until a ground cover is achieved that is uniform,
mature enough to survive and will inhibit erosion.
4. Sediment basins and traps, perimeter dikes, sediment barriers and other measures intended to trap
sediment shall be constructed as a first step in any land -disturbing activity and shall be made functional
before upslope land disturbance takes place.
5. Stabilization measures shall be applied to earthen structures such as dams, dikes and diversions
immediately after installation.
6. Sediment traps and sediment basins shall be designed and constructed based upon the total drainage area
to be served by the trap or basin.
a. The minimum storage capacity of a sediment trap shall be 134 cubic yards per acre of drainage area and
the trap shall only control drainage areas less than three acres.
b. Surface runoff from disturbed areas that is comprised of flow from drainage areas greater than or equal
to three acres shall be controlled by a sediment basin. The minimum storage capacity of a sediment basin
shall be 134 cubic yards per acre of drainage area. The outfall system shall, at a minimum, maintain the
structural integrity of the basin during a 25-year storm of 24-hour duration. Runoff coefficients used in
runoff calculations shall correspond to a bare earth condition or those conditions expected to exist while the
sediment basin is utilized.
7. Cut and fill slopes shall be designed and constructed in a manner that will minimize erosion. Slopes that
are found to be eroding excessively within one year of permanent stabilization shall be provided with additional
slope stabilizing measures until the problem is corrected.
8. Concentrated runoff shall not flow down cut or fill slopes unless contained within an adequate temporary or
permanent channel, flume or slope drain structure.
9. Whenever water seeps from a slope face, adequate drainage or other protection shall be provided.
10. All storm sewer inlets that are made operable during construction shall be protected so that
sediment -laden water cannot enter the conveyance system without first being filtered or otherwise treated to
remove sediment.
11. Before newly constructed stormwater conveyance channels or pipes are made operational, adequate outlet
protection and any required temporary or permanent channel lining shall be installed in both the conveyance
channel and receiving channel.
12. When work in a live watercourse is performed, precautions shall be taken to minimize encroachment,
control sediment transport and stabilize the work area to the greatest extent possible during construction.
Nonerodible material shall be used for the construction of causeways and cofferdams. Earthen fill may be
used for these structures if armored by nonerodible cover materials.
13. When a live watercourse must be crossed by construction vehicles more than twice in any six-month
period, a temporary vehicular stream crossing constructed of nonerodible material shall be provided.
14. All applicable federal, state and local requirements pertaining to working in or crossing live watercourses
shall be met.
15. The bed and banks of a watercourse shall be stabilized immediately after work in the watercourse is
completed.
16. Underground utility lines shall be installed in accordance with the following standards in addition to other
applicable criteria:
a. No more than 500 linear feet of trench may be opened at one time.
b. Excavated material shall be placed on the uphill side of trenches.
c. Effluent from dewatering operations shall be filtered or passed through an approved sediment trapping
device, or both, and discharged in a manner that does not adversely affect flowing streams or off -site
property.
d. Material used for backfilling trenches shall be properly compacted in order to minimize erosion and promote
stabilization.
e. Restabilization shall be accomplished in accordance with this chapter.
f. Applicable safety requirements shall be complied with.
17. Where construction vehicle access routes intersect paved or public roads, provisions shall be made to
minimize the transport of sediment by vehicular tracking onto the paved surface. Where sediment is
transported onto a paved or public road surface, the road surface shall be cleaned thoroughly at the end of
each day. Sediment shall be removed from the roads by shoveling or sweeping and transported to a sediment
control disposal area. Street washing shall be allowed only after sediment is removed in this manner. This
provision shall apply to individual development lots as well as to larger land -disturbing activities.
18. All temporary erosion and sediment control measures shall be removed within 30 days after final site
P rY Y
stabilization or after the temporary measures are no longer needed, unless otherwise authorized by the VESCP
authority. Trapped sediment and the disturbed soil areas resulting from the disposition of temporary measures
shall be permanently stabilized to prevent further erosion and sedimentation.
19. Properties and waterways downstream from development sites shall be protected from sediment deposition,
erosion and damage due to increases in volume, velocity and peak flow rate of stormwater runoff for the
stated frequency storm of 24-hour duration in accordance with the following standards and criteria. Stream
restoration and relocation projects that incorporate natural channel design concepts are not man-made
channels and shall be exempt from any flow rate capacity and velocity requirements for natural or man-made
channels:
a. Concentrated stormwater runoff leaving a development site shall be discharged directly into an adequate
natural or man-made receiving channel, pipe or storm sewer system. For those sites where runoff is
discharged into a pipe or pipe system, downstream stability analyses at the outfall of the pipe or pipe system
shall be performed.
b. Adequacy of all channels and pipes shall be verified in the following manner:
(1) The applicant shall demonstrate that the total drainage area to the point of analysis within the channel is
100 times greater than the contributing drainage area of the project in question; or
(2) (a) Natural channels shall be analyzed by the use of a two-year storm to verify that stormwater will not
overtop channel banks nor cause erosion of channel bed or banks;
(b) All previously constructed man-made channels shall be analyzed by the use of a 10-year storm to verify
that stormwater will not overtop its banks and by the use of a two-year storm to demonstrate that
stormwater will not cause erosion of channel bed or banks; and
(c) Pipes and storm sewer systems shall be analyzed by the use of a 10-year storm to verify that
stormwater will be contained within the pipe or system.
c. If existing natural receiving channels or previously constructed man-made channels or pipes are not
adequate, the applicant shall:
(1) Improve the channels to a condition where a 10-year storm will not overtop the banks and a two-year
storm will not cause erosion to the channel, the bed, or the banks;
(2) Improve the pipe or pipe system to a condition where the 10-year storm is contained within the
appurtenances;
(3) Develop a site design that will not cause the pre -development peak runoff rate from a two-year storm
to increase when runoff outfalls into a natural channel or will not cause the pre -development peak runoff
rate from a 10-year storm to increase when runoff outfalls into a man-made channel; or
(4) Provide a combination of channel improvement, stormwater detention or other measures which is
satisfactory to the VESCP authority to prevent downstream erosion.
d. The applicant shall provide evidence of permission to make the improvements.
e. All hydrologic analyses shall be based on the existing watershed characteristics and the ultimate
development condition of the subject project.
f. If the applicant chooses an option that includes stormwater detention, he shall obtain approval from the
VESCP of a plan for maintenance of the detention facilities. The plan shall set forth the maintenance
requirements of the facility and the person responsible for performing the maintenance.
g. Outfall from a detention facility shall be discharged to a receiving channel, and energy dissipators shall be
placed at the outfall of all detention facilities as necessary to provide a stabilized transition from the facility
to the receiving channel.
h. All on -site channels must be verified to be adequate.
i. Increased volumes of sheet flows that may cause erosion or sedimentation on adjacent property shall be
diverted to a stable outlet, adequate channel, pipe or pipe system, or to a detention facility.
j. In applying these stormwater management criteria, individual lots or parcels in a residential, commercial or
industrial development shall not be considered to be separate development projects. Instead, the development,
as a whole, shall be considered to be a single development project. Hydrologic parameters that reflect the
ultimate development condition shall be used in all engineering calculations.
k. All measures used to protect properties and waterways shall be employed in a manner which minimizes
impacts on the physical, chemical and biological integrity of rivers, streams and other waters of the state.
I. Any plan approved prior to July 1, 2014, that provides for stormwater management that addresses any flow
rate capacity and velocity requirements for natural or man-made channels shall satisfy the flow rate capacity
and velocity requirements for natural or man-made channels if the practices are designed to (i) detain the
water quality volume and to release it over 48 hours; (ii) detain and release over a 24-hour period the
expected rainfall resulting from the one year, 24-hour storm; and (iii) reduce the allowable peak flow rate
resulting from the 1.5, 2, and 10-year, 24-hour storms to a level that is less than or equal to the peak
flow rate from the site assuming it was in a good forested condition, achieved through multiplication of the
forested peak flow rate by a reduction factor that is equal to the runoff volume from the site when it was in
a good forested condition divided by the runoff volume from the site in its proposed condition, and shall be
exempt from any flow rate capacity and velocity requirements for natural or man-made channels as defined
in any regulations promulgated pursuant to § 62.1-44.15:54 or 62.1-44.15:65 of the Act.
m. For plans approved on and after July 1, 2014, the flow rate capacity and velocity requirements of §
62.1-44.15:52 A of the Act and this subsection shall be satisfied by compliance with water quantity
requirements in the Stormwater Management Act (§ 62.1-44.15:24 et seq. of the Code of Virginia) and
attendant regulations, unless such land -disturbing activities (i) are in accordance with provisions for time
limits on applicability of approved design criteria in 9VAC25-870-47 or grandfathering in 9VAC25-870-48 of
the Virginia Stormwater Management Program (VSMP) Regulation, in which case the flow rate capacity and
velocity requirements of § 62.1-44.15:52 A of the Act shall apply, or (ii) are exempt pursuant to §
62.1-44.15:34 C 7 of the Act.
n. Compliance with the water quantity minimum standards set out in 9VAC25-870-66 of the Virginia
Stormwater Management Program (VSMP) Regulation shall be deemed to satisfy the requirements of this
subdivision 19.
La
0% -
SECTION A -A
FILTER CLOTH KEY IN 6"-9"
RECOMMENDED FOR
ENTIRE PERIMETER
PIPE OUTLET CONDITIONS
NTS
LEGEND
EXISTING BUILDING "-'-'! ! - - - - - !- - - - - - AGGREGATE TO REPLACE SILT FENCE IN
- PROPOSED BUILDING III -III -III -III -III -III -III -III -III -III -III -III -III -III_ "HORSESHOE" WHEN HIGH VELOCITY OF
PROPOSED ROAD/EOP TYPICAL DITCH SECTION FLOW IS EXPECTED
EXISTING ROAD NTS DIVERSION CULVERT INLET PROTECTION STONE
APPROXIMATE PROPERTY LINE NTS COMBINATION
0 GRAVEL AREA BASE AGGREGATE, COMPACT SUB -GRADE TO
0 NTS
CONCRETE AREA 6" OF #57 STONE 95% PROCTOR DENSITY
0 Q REVISION SYMBOLS
- -1230- _ EXISTING CONTOURS
1pgp PROPOSED CONTOURS
0000� PROPOSED/EX DITCH OR SWALE
+ 28.5 PV PROPOSED SPOT ELEVATION
4- DRAINAGE FLOW
°E OUTLET TO FLAT / �6' MAX
EA WITH NO EXCAVATE 4" X 4" TRENCH
FINED CHANNEL UPSLOPE OF STAKELINE.
- ATTACH FENCE MATERIAL
AND EXTEND INTO AND
ALONG BOTTOM OF TRENCH.
- BACKFILL AND COMPACT
d EXCAVATED SOIL.
FLOW `�♦.
II - -
SIL T FENCE
(SHEET FLOW PROTECTIONS
NTS
Qpr OPF'1 R1sm -41
�10' MIN
A
O O O SANDBAGS
OR STAPLES
O O SANDBAGS 10 MIL PLASTIC
LINING
OR STAPLES 1:1 SIDE
10' MIN O SLOPE (TYP)
O O 3' MI
O O O 0
SECTION A -A
A
PLAN
NOTES:
1. ACTUAL LOCATION DETERMINED IN FIELD
2. THE CONCRETE WASHOUT STRUCTURES SHALL BE MAINTAINED WHEN THE
LIQUID AND/OR SOLID REACHES 75% OF THE STRUCTURES CAPACITY.
3. CONCRETE WASHOUT STRUCTURE NEEDS TO BE CLEARLY MARKED WITH SIGN
WASHOUT STRUCTURE
NTS
COMPACTED SOIL EXCAVATED SOIL
24" WIDE x 12" HIGH 24" WIDE x 12" DEEP
GROOVING IS CUTTING FURROWS
ALONG THE CONTOUR OF A
SLOPE. IRREGULARITIES IN THE _
SOIL SURFACE CATCH RAINWATER
AND PROVIDE SOME COVERAGE
OF LINE, FERTILIZER, AND SEED.
GROOVING SLOPES
NTS
FLOW
\EXCAVATE FOR
SEDIMENT
PROPOSED DRIVE
SECTION
NTS
DRY POND/SEDIMENT BASIN EARTHEN DAM NOTES:
TOP OF DAM = 498.0 1) TO COMPLY WITH VSMH.
DESIGN HIGH WATER = 496.1 2) CUT OFF TRENCH FOR ENTIRE LENGTH OF DAM
EMERGENCY SPILLWAY CREST = 495.7 AT CENTERLINE TO BE EXCAVATED 4' WIDE AND 2'
PRINCIPAL SPILLWAY CREST = 494.4 DEEP INTO IMPERVIOUS MATERIAL. SIDE SLOPES
DEWATERING ORIFICE INVERT = 493.4 TO BE 1:1, AND COMPACTED.
CLEANOUT ELEVATION (SB) = 492.7 3) DAM COMPACTION TO BE 95% OF MAXIMUM
BOTTOM (DRY POND/SB) = 490.0 DRY DENSITY.
kKy CONSTRUCTION ROAD STABILIZATION (3.03) (1) ANTI SEEP COLLARS 4.5'x4.5'
40.5"x21.125"
O SILT FENSE (3.05) ANTI -VORTEX TRASH RACK MAINTAIN AT LEAST 18" OF
r STORM DRAIN INLET PROTECTION (3.07) EDGE OF (SEE DETAIL SHEET 4) COVER OVER CULVERT
3 3:1 SIDE SLOPES OR
ar CULVERT INLET PROTECTION (3.08) o PAVEMENT DEWATERING ORIFICE = 6" NATURAL SLOPE WHERE
DD TEMPORARY DIVERSION DIKE (3.09) ULVERT SEALFLEXIBLE WITH RUBBER GASKET APPLICABLE
SB TEMPORARY SEDIMENT BASIN (3.14) TUBE TO BE REMOVED BUT ORIFICE TO REMAIN 1 9' FREEBOARD COMPACT SOIL TO 95%
UNPLUGGED WHEN CONVERTING
TO DRY POND
�'-
BERM
OP
OUTLET PROTECTION (3.18)
�
_ _ _
- - -
i
srs
SURFACE ROUGHENING (3.29)
TOE OF
100 YEAR STORM
RY SIQBASE -A94,
\ \ -
-
To
TOPSOILING (3.30)
GRAVEL.qJ
FILL
ELEVATION: 496.1'
(475 YD3)
/
\
TEMPORARY SEEDING (3.31)
6" ORIFICE IM BEe
DRILLED AND SEDIMENT
JjWET STORAGE-493.4
/
4.5'X4.5' ANTI SEEP COLLAR
BE CLEANED OUT
F475
30"0
PLACEMENT:
PERMANENT SEEDING 3.32)
(
STANCE IS 6'
WHEN CONVERTING TO
H
YD3)
s
HDPE
18"0 HDPEMULCHING
25' FROM RISER
3.35
( )WARD
N. IF FLOW IS
DRY POND (INV AT 490)
boRISER
CULVERT(SEE
DETAIL SHEET 4)
F 1% SLOPE MINSOIL
STABILIZATION BLANKETS AND MATTING (3.36)BANKMENT
oc
DUST CONTROL(3.39)
30INV
\ '
IN _ 490
LL
4'x4'x15"
CONCRETE ANCHOR
INV OUT = 489
DISTURBED AREA
GRAVEL
CULVERT
INLET
NUMBERS IN
PARENTHESES REFER TO VESCH MEASURES
TEMPORARY
SEDIMENT BAS
IN/
PROTECTION
EXTRA MEASURES TO BE ADDED AS NEEDED AS
PERMANENT
DETENTION POND
DETERMINED
BY THE COUNTY INSPECTOR
XA-CIP NTS
N.T.S.
\
\ i
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COMPACTED SOIL �l
EMERGENCY SPILLWAY
NTS
SEE SHED-2 FOR
ESC PLAN \\ \ �- \ , PIP�6UTLET _--
\�\ �a------ _ /-PROTECTION SPECS
\ _
401(00
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STOO( PILE LOCATION
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TUMAROUND PAD TO BE USED AS
\ _ A STAGING &PARKING AREA ONCE
- - - - , PRELIMINARY GRADING IS COMPLETE
- ,
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- ---- CIFS
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STAGING & PARKING AREA
__ \ \GP 1PHIC SCALE -90V2
100,
----j✓r'�-i --�i / / /� i --�-BBB----- \\ \\ \\
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Date: 3/21 /21
Scale: AS NOTED
Designed by: NHK
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Revision
Dates
7/6/21
PER
CO
8 12 21
PER
CO.
9 3 21
PER
CO.
5/19/22
PER
CO.
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Drawing No.
4
of 5 Sheets
Job No. 2888
ALBEMARLE COUNTY
FINAL PLAN GENERAL NOTES
GENERAL CONSTRUCTION NOTES
1.PRIOR TO ANY CONSTRUCTION WITHIN ANY EXISTING PUBLIC RIGHT-OF-WAY, INCLUDING CONNECTION TO ANY EXISTING ROAD, A
PERMIT SHALL BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF TRANSPORTATION (VDOT). THIS PLAN AS DRAWN MAY NOT
ACCURATELY REFLECT THE REQUIREMENTS OF THE PERMIT. WHERE ANY DISCREPANCIES OCCUR THE REQUIREMENTS OF THE PERMIT
SHALL GOVERN.
2.ALL MATERIALS AND CONSTRUCTION METHODS SHALL CONFORM TO CURRENT SPECIFICATIONS AND STANDARDS OF VDOT UNLESS
OTHERWISE NOTED.
3.EROSION AND SILTATION CONTROL MEASURES SHALL BE PROVIDED IN ACCORDANCE WITH THE APPROVED EROSION CONTROL PLAN
AND SHALL BE INSTALLED PRIOR TO ANY CLEARING, GRADING OR OTHER CONSTRUCTION.
4.ALL SLOPES AND DISTURBED AREAS ARE TO BE FERTILIZED, SEEDED AND MULCHED.
5.THE MAXIMUM ALLOWABLE SLOPE IS 2:1 HORIZONTALMERTICAL . WHERE REASONABLY OBTAINABLE LESSER SLOPES OF3:1 OR
BETTER ARE TO BE ACHIEVED. ( )
6.PAVED, RIP -RAP OR STABILIZATION MAT LINED DITCH MAY BE REQUIRED WHEN IN THE OPINION OF THE COUNTY ENGINEER, OR
DESIGNEE, IT IS DEEMED NECESSARY IN ORDER TO STABILIZE A DRAINAGE CHANNEL.
7.ALL TRAFFIC CONTROL SIGNS SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES.
&UNLESS OTHERWISE NOTED ALL CONCRETE PIPE SHALL BE REINFORCED CONCRETE PIPE -CLASS III.
9.ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY
(29 CFR PART 1926).
GENERAL CONSTRUCTION NOTES FOR STREETS (THIS LIST IS IN ADDITION TO THE GENERAL CONSTRUCTION NOTES)
1.CONSTRUCTION INSPECTION OF ALL PROPOSED ROADS WITHIN THE DEVELOPMENT WILL BE MADE BY THE COUNTY. THE CONTRACTOR
MUST NOTIFY THE DEPARTMENT OF COMMUNITY DEVELOPMENT (296-5832) 48 HOURS IN ADVANCE OF THE START OF CONSTRUCTION.
2.UPON COMPLETION OF FINE GRADING AND PREPARATION OF THE ROADBED SUBGRADE THE CONTRACTOR SHALL HAVE CBR TESTS
PERFORMED ON THE SUBGRADE SOIL. THREE (3) COPIES OF THE TEST RESULTS SHALL BE SUBMITTED TO THE COUNTY. IF A
SUBGRADE SOIL CBR OF 10 OR GREATER IS NOT OBTAINABLE, A REVISED PAVEMENT DESIGN SHALL BE MADE BY THE DESIGN
ENGINEER AND SUBMITTED WITH THE TEST RESULTS FOR APPROVAL.
3.SURFACE DRAINAGE AND PIPE DISCHARGE MUST BE RETAINED WITHIN THE PUBLIC RIGHT-OF-WAY OR WITHIN EASEMENTS PRIOR TO
ACCEPTANCE BY THE COUNTY. ALL DRAINAGE OUTFALL EASEMENTS ARE TO BE EXTENDED TO A BOUNDARY LINE OR A NATURAL
WATERCOURSE.
4.GUARDRAIL LOCATIONS ARE APPROXIMATE. EXACT LENGTH, LOCATION AND APPROPRIATE END TREATMENTS WILL BE FIELD VERIFIED
AT THE TIME OF CONSTRUCTION. ADDITIONAL GUARDRAIL MAY BE REQUIRED AT LOCATIONS NOT SHOWN WHEN, IN THE OPINION OF
THE COUNTY ENGINEER, OR DESIGNEE, IT IS DEEMED NECESSARY. WHEN GUARDRAIL IS REQUIRED, IT SHALL BE INSTALLED FOUR (4)
FEET OFFSET FROM THE EDGE OF PAVEMENT TO THE FACE OF GUARDRAIL, AND ROADWAY SHOULDER WIDTHS SHALL BE INCREASED
TO SEVEN 7 FEET.
5.WHERE URBAN CROSS SECTIONS ARE INSTALLED, ALL RESIDENTIAL DRIVEWAY ENTRANCES SHALL CONFORM TO VDOT CG-9(A, B OR
C).
6.WHERE RURAL CROSS SECTIONS ARE INSTALLED, ALL RESIDENTIAL DRIVEWAY ENTRANCES SHALL CONFORM TO VDOT STANDARD
PE-1.
7.COMPLIANCE WITH THE MINIMUM PAVEMENT WIDTH, SHOULDER WIDTH AND DITCH SECTIONS, AS SHOWN ON THE TYPICAL PAVEMENT
SECTION DETAIL, SHALL BE STRICTLY ADHERED TO.
8.ROAD PLAN APPROVAL FOR SUBDIVISIONS IS SUBJECT TO FINAL SUBDIVISION PLAT VALIDATION. SHOULD THE FINAL PLAT FOR THIS
PROJECT EXPIRE PRIOR TO SIGNING AND RECORDATION, THEN APPROVAL OF THESE PLANS SHALL BE NULL AND VOID.
9.ALL SIGNS OR OTHER REGULATORY DEVICES SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES
AND THE ALBEMARLE COUNTY ROAD NAMING AND PROPERTY NUMBERING ORDINANCE AND MANUAL.
103RAFFIC CONTROL OR OTHER REGULATORY SIGNS OR BARRICADES SHALL BE INSTALLED BY THE DEVELOPER WHEN, IN THE
OPINION OF THE COUNTY ENGINEER, OR DESIGNEE, THEY ARE DEEMED NECESSARY IN ORDER TO PROVIDE SAFE AND CONVENIENT
ACCESS.
ll.THE SPEED LIMITS TO BE POSTED ON SPEED LIMIT SIGNS ARE 5 MPH BELOW THE DESIGN SPEED, OR AS DETERMINED BY VDOT
FOR PUBLIC ROADS.
12.VDOT STANDARD CD-1 OR CD-2 CROSS -DRAINS UNDER TO BE INSTALLED UNDER THE SUBBASE MATERIAL AT ALL CUT AND FILL
TRANSITIONS AND GRADE SAG POINTS AS SHOWN ON THE ROAD PROFILES.
13.A VIDEO CAMERA INSPECTION IS REQUIRED FOR ALL STORM SEWERS AND CULVERTS THAT ARE DEEMED INACCESSIBLE TO VDOT
OR COUNTY INSPECTIONS. THE VIDEO INSPECTION SHALL BE CONDUCTED IN ACCORDANCE WITH VDOT'S VIDEO CAMERA INSPECTION
PROCEDURE AND WITH A VDOT OR COUNTY INSPECTOR PRESENT.
GENERAL CONSTRUCTION NOTES FOR EROSION AND SEDIMENT CONTROL PLANS
1.THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK
PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION.
2.ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS
AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00
EROSION AND SEDIMENT CONTROL REGULATIONS.
3.ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING.
4.A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES.
5.PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT
LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO
THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY.
6.THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT
EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY.
7.ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING
ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED.
&DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE.
9.THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL
EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE
IMMEDIATELY.
10.ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA.
11.ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF
ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER DEBRIS.
12.BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28.
13.ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF THE CODE OF ALBEMARLE.
14.BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:OOAM
TO 9:OOPM.
15.BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAN MAINTAINS LATERAL SUPPORT, OR ORDER TO
MINIMIZE ANY HAZARD TO PERSONS,PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET
BECAUSE OF SLIDES, SINKING, OR COLLAPSE.
16.THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER
MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE
OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY.
17.TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS/ACRE, AND IN THE
MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH
AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE
APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR.
18.PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE
SHALL BE APPLIED AT 90LBS/1000SF, INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT
1000LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 180LBS/ACRE AND
CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0-5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS
TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR.
19.MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO
STRUCTURAL MEASURES IS TO BE REPAIR IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME
IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS.
SILT FENCE AND DIVERSION DYKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED
IMMEDIATELY.
20.ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION,
WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR.
GENERAL CONSTRUCTION NOTES FOR STORMWATER MANAGEMENT PLANS
1.ALL DAMS AND CONSTRUCTED FILL TO BE WITHIN 95% OF MAXIMUM DRY DENSITYAND 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 ARE 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 COUNTY
EROSION CONTROL INSPECTOR.
4"x4" TREATED
WOOD (SPREADER LIP)
10' SET AT 0% GRADE
OUTLET W .
ROTECTION . .
,I
TLETING ,
PIPE
I
W yl
20
TREATED WOOD TO
BE PLACED AT LEAST
EXCAVATED AREA W/ " W " 2" BELOW OUTSIDE
GRADE AENDS
BLANKETING/MATTING .' To KEEPTRUNOFF
W DIRECTED OVER LIP.
TIE INTO EX GRADE
AT 3:1 SLOPE
9" MIN. 3" TO 6" DROP FROM LIP OF
SPREADER TO NATURAL GRADE
10' 7' MIN.
3' UNDISTURBED
2:1 OR
FLATTER LEVEL SPREADER
N.T.S.
NOTE:
OWNER WILL BE RESPONSIBLE FOR LONG TERM MAINTENANCE REQUIREMENTS OF
THE LEVEL SPREADERS. TRASH AND SEDIMENT BUILDUP WILL NEED TO BE REMOVED.
VEGETATION WILL NEED TO BE INSPECTED PERIODICALLY.
itCOUNTY OF ALBEMARLE
Department of Community Development
Construction Record Drawings (As -built) for VSMP
The following is a list of information required on construction record drawings for
stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the
construction record drawing be prepared by someone other than the designer. Please do not
provide design drawings as construction record drawings.
A. A signed and dated professional seal of the preparing engineer or surveyor.
B. The name and address of the firm and individual preparing the drawings on the title sheet.
C. The constructed location of all items associated with each facility, and the inspection records to verify
proper dimensions, materials and installation. The items include, but are not limited to the following:
1. Inspection Records and photographs for pipe trenches and bedding, including underdrains.
2. Video Pipe Inspection for an pipes which are not accessible or viewable.
P YPP
3. Updated Location with geo-coordinates of all facilities.
4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities.
5. Current physical and topographic surve for all earthen structures. Ponds should include a survey
P YY Y
of the pond bottom. Surveys should verify pond volumes are per design. Corrections may be required
for alterations from the design.
6. Plants, location and type.
7. Plans and profiles for all culverts, Pipes, Risers, Weirs and Drainage Structures - Display the
installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s),
inlet and outlet protection, alignment and invert elevations compared to design.
8. Computations: For significant deviations from design, provide sealed computations verifying that
the as -built condition is equivalent or better than design.
9. Ditch Lines - Display the constructed location of all ditch lines and channels, including typical
sections and linings.
10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage
must be within platted easements. Provide copies of recorded documents.
11. Guardrail, fences or other safety provisions - Display the constructed location of all safety
provisions; fences, guardrail, including the type, length and applied end treatments, compared to
design.
12. Material layers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to
material types and depths. Include inspection reports, boring or test pit reports and materials
certifications. Biofilter media must be an approved state mix.
13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable.
14. Compaction reports are required to verify fill compaction in dams.
15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning.
W
A
L
TACKWELD -
ALL AROUND
X
Detention Pond Maintenance Activities
Suggested Frequency
Mow side slopes.
Twice during growing season,
as needed during off season
Remove accumulated trash and debris from the basin,
Quarterly, or more frequently,
around the riser pipe, side slopes, embankment,
as needed
emergency spillway, and outflow trash racks. The
frequency of this activity may be altered to meet specific
site conditions.
Manage pesticides and nutrients.
Annually
Trim woody vegetation at the beginning and end of the
Semi-annually, or more
wet season to prevent establishment of woody vegetation
frequently, as needed
and for aesthetic and vector control reasons.
Repair undercut or eroded areas.
Annually
Control vectors by eliminating ponding areas.
Annually, as needed
Keep access road clear of obstructions and woody
Annually
vegetation.
Seed or sod to restore dead or damaged ground cover.
Annually, as needed
Monitor structural (pipes, components i es riser structures
Annually, Y as needed
orifice plates or energy dissipaters) for signs of
deterioration such as cracks, sink holes, and separation.
Repair erosion to banks and bottom as required.
Annually, as needed
Supplement wetland plants if a significant portion has not
Annually, as needed
been established (at least 50% of the surface area).
(Enhanced -Extended
Detention Only)
Remove nuisance or invasive plant species.
Annually, as needed
Remove sediment from forebay to reduce the frequency
Annually, as needed, if
of main basin cleaning.
applicable
Monitor sediment accumulation and remove accumulated
Every 10-25 years, as needed
sediment and re -grade about every 10 years or when the
accumulated sediment volume exceeds 10-20% of the
basin volume, or when accumulation reaches 6 inches or
if re -suspension is observed. Clean in early spring so
vegetation damaged during cleaning has time to re-
establish.
ANTI- VORTEX DEVICE DESIGN
PRESSURE
E RE OUDW
REUEF
HOLES ✓
PLAN VIEW
RISER DIAMETER
I
SECTION A -A
Target and Neighboring Parcel Information
Tax Map# Parcel ID Owner Zoning District Use
129-5 12900-00-00-00500 TROXELL, ASHLEY ANNE; BROC ATROXELL; WILLIAM FRED HESS & HEATHER F HESS Rural Areas Misc. Improvements
121-70D
12100-00-00-070DO
SWANBERG, GREGORY J OR JOAN M
Rural Areas
Single Family
121-70E
12100-00-00-070EO
TROXELL, ASHLEY ANNE; BROC ATROXELL; WILLIAM FRED HESS & HEATHER F HESS
Rural Areas
Single Family
121-70A
12100-00-00-07OA0
SWANBERG, GREGORY JADE &JOAN MARIE SWANBERG
Rural Areas
Vacant Residential Land
129-4
12900-00-00-00400
WOODSTOCK FARM LLC
Rural Areas
Single Family
129-413
12900-00-00-004BO
P&V COLEMAN FAMILY PARTNERSHIP LLLP
Rural Areas
Vacant Residential Land
130-5B1
13000-00-00-00581
1 BRAYMAN, BRUCE & JILL MATSON
Rural Areas
Misc. Improvements
130-4
13000-00-00-00400
PARANZINO, DENNIS H OR HELEN C
Rural Areas
Single Family
130-1
13000-00-00-00100
TOTIER CREEK FARM LLC
Rural Areas
Single Family
122-5A
12200-00-00-005A0
ISTEPHEN R HAECKEL
Rural Areas
Vacant Residential Land
}A
J
I:
6 MIN.
SUPPORT BAR SIZE
(q6 REBAR MIN.)
I
ISOMETRIC
TOP STIFFENER (IF REQUIRED)
IS----X---X-ANGLE WELDED
TO TOP AND ORIENTED PER-
PENDICULAR TO CORRUGATIONS.
TOP IS -GAGE CORRUGATED
METAL OR 1/8" STEEL PLATE.
PRESSURE RELIEF HOLES MAY
BE OMMITTED, IF ENDS OF
CORRUGATIONS ARE LEFT FULLY
OPEN WHEN THE TOP IS
ATTACHED.
CYLINDER IS -GAGE CORRUGATED
METAL PIPE OR FABRICATED FROM
1 /8"
STEEL PLATE.
NOTES:
1. THE CYLINDER MUST BE
FIRMLY FASTENED TO THE
TOP OF THE RISER.
2. SUPPORT BARS ARE WELDED
TO THE TOP OF THE RISER
OR ATTACHED BY STRAPS
BOLTED TO TOP OF RISER.
TYPICAL TREATMENT - >
(SOIL STABILIZATION BLANKET)
INSTALLATION CRITERIA 12"MAX. 4:1 OR FLATTER
�I 6"MAX. STEEPER THAN 4:1
LAP JOINT 2" MIN.
(JUTE MESH ONLY I I I III I I I I
- ANCHOR SLOT ��
.A� I EDGE AND
J " I END JOINTS
TO
5' im. ♦:1 OR M11ER I I SNUGLY
JUNCTION SLOT a' MAx. STEEPER TN1N *:1 I I I I ABUTTED
CHECK SLOT I (JUTE MESH
WILL HAVE
TERMINAL FOLD I I III II STAPLED LAP
TAMP FIRMLY I I I JOINT IN
*CHECK SLOT I II LIEU OF EDGE
ANCHOR SLOT I JOINT)
2,6W
j 12" PLAN VIEW
I wR I Wx I
STAPLING DIAGRAM
,,1" TO 2"
* CHECK SLOTS AT MIN.
TAMP FIRMLY 50' C-C INTERVALS;
CHECK SLOT 6" TO IN. NOT REQ'D. WITH ALL
2„ "COMBINATION" BLANKETS
6" 012"
STAPLE FORMED FROM N0. 11 STEEL WIRE.
B" STAPLE MIN. LENGTH FOR SANDY SOIL.
6" STAPLE MIN. LENGTH FOR OTHER SOIL.
NOTES
JUNCTION SLOT TERMINAL FOLD APPROXIMATELY 200
TAMP FIRMLY i---i TAMP FIRMLY STAPLES REQUIRED
PER 100 SQ. YDS. OF
2" 2" MATERIAL ROL.
T 6" TO 12" ANCHOR SLOTS,
JUNCTION SLOTS &
CHECK SLOTS TO BE
Source: VDOT Road and Bridge Standards Plate 3.38-2 BURIED 6" TO 12".
Albemarle County Design Standards Manual - Engineering
a
STONE 70' MIN,
CONSTRUCTION
ACCESS 3" SM-2A ASPHALT TOP
COURSE EXISTING
27 2% PAVEMENT
5" M_N. 2'A AGGREGATE BASE
PROFILE
STONE 70' MIN.
CONSTRUCTION ASPHALT PAVED
ACCESS A WASHRACK
EXISTING
No
2% PAVEMENT 27
I2% 12' MIN.*
j POSITIVE DRAINAGE
'MUST EXTEND FULL WIDTH A TO SEDIMENT
OF INGRESS AND EGRESS ;)PERATION TRAPPING DEVICE
PLAN
12' MIN. POSITIVE DRAINAGE
2% TO SEDIMENT
TRAPPING DEVICE
FILTER CLOTH
SECTION A -A
A minimum water tap of 1 itch must be installed with a nnimimuni 1 uich ballcock
slmtoff vahTe supplying a wash hose with a diameter of 1.5 inches for adequate
constant pressure. Wash water must be carried away from the entrance to an
approved settling area to remove sediment. All sediment shall be prevented from
entering stoma chains, ditches or watercotlrws.
PAVED WASH RACK
NO SCALE
Page 8 of 23
3.14
DETAILS OF CORRUGATED METAL
ANTI -SEEP COLLAR
NMI COLLAR WITH
CORRUGATXNS VERTICAL COI,M TO BE OF SWE GGE AS THE
"PE WITH WHIDH R IS USED
COHTNUOUS WEID,.17
1/T X Z' SLOTTED HOLES FOR IZ MIN.
3/!r q ETER DOLTS.
. + R T 2'
BAEA
Tcs..�'
eoTM sIDEs
SLnRED Ma RRUGATED METAL
DONDMUOW WELD AT C G.G SECTION B-BEET WELDED TO
OF BAND
ELEVATION OF UNASSEMBLED COLLAR
3. UNASSEMBLED COLLARS SHALL BE MARKED BY
NOTES FOR COLLARS: PAINTING OR TAGGING TO IDENTIFY MATCHING
PAIRS.
1. ALL MATERIALS TO BE IN ACCORDANCE WITH 4. THE LAP BETWEEN THE TWO HALF SECTIONS
CONSTRUCTION AND CONSTRUCTION MATERIAL AND BETWEEN THE PIPE AND CONNECTING BAND
SPECIFICATIONS. SHALL BE CAULKED WITH ASPHALT MASTIC AT
2. WHEN SPECIFIED ON THE PLANS, COATING OF TIME OF INSTALLATION.
COLLARS SHALL BE IN ACCORDANCE WITH S. EACH COLLAR SHALL BE FURNISHED WITH TWO
CONSTRUCTION AND CONSTRUCTION MATERIAL 1/2P DIAMETER RODS WITH STANDARD TANK
SPECIFICATIONS. LUGS FOR CONNECTING COLLARS TO PIPE.
DETAIL OF HELICAL PIPE
ANTI -SEEP COLLAR
WELD 1 1/C X 1 1/C X 1 1/C ANGLES TO ODUM OR BEND A e0'
SIZE AND SPACING OF SLOTTED ANGE 1 1/e WTOE A7 SIBANNI N DRAWING•
OPENINGS SHALL BE THE SAME NOTE FOR BANDS AND COLLARS:
AS SHOWN FOR CM COLLAR. T 1� MODIFICATIONS OF THE DETAILS
USE RODS AND LUGS TO CLAMP �I SHOWN MAY BE USED PROVIDING
BANDS SECURELY TO PIPE. I 1 EQUAL WATERTIGHTNESS IS
MAINTAINED AND DETAILED
It MN. DRAWINGS ARE SUBMITTED AND
APPROVED BY THE ENGINEER PRIOR
TO DELIVERY.
SAND o,D PIPE ISOMETRIC VIEW
S METAL COLLM SHALL BE CUT TO FIT
MRRWATIONS OF HELXlL BA♦a, AND
ROD AND WG WEIDED WITH A WNITNUOUS WELD.
NOTE: FOR DETAILS OF FABRICATION DIMENSIONS, MINIMUM CAGES,
SLOTTED HOLES, AND NOTES, SEE DETAIL ABOVE.
METAL CDUAa TO BE NOTE: TWO OTHER TYPES OF ANTI -SEEP COLLARS ARE:
Wnnm ro OENiEW OF
HELL L PPE BAro 1. CORRUGATED METAL, SIMILAR TO UPPER, EXCEPT SHOP
WELDED TO A SHORT (AFT.) SECTION OF THE PIPE AND
CONNECTED WITH CONNECTING BANDS TO THE PIPE.
PARTIAL ELEVATION 2. CONCRETE, SIX INCHES THICK FORMED AROUND THE PIPE
REF!ENOIIt. FIELD MANUAL WITH /3 REBAR SPACED 1S- HORIZONTALLY AND VERTICALLY.
Source: USDA-SCS
III - 109
Plate 3.14-13
Date: 3/21 /21
Scale: AS NOTED
Designed by: NHK
Drawn by: BWK
Checked by: NHK
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Revision
Dates
7/6/21
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Drawing No.
5
of 5 Sheets
Job No. 2888::]_