HomeMy WebLinkAboutWPO201900054 Plan - Submittal (First) WPOVSMP 2019-08-20SITE DATA:
ENGINEER: TIMMONS GROUP
608 PRESTON AVENUE, SUITE 200
CHARLOTTESVILLE, VA 22903
TELEPHONE: 434-327-1681
CONTACT: JONATHAN SHOWALTER, P.E.
JONATHAN.SHOWALTER@TIMMONS.COM
TAX MAP PARCEL: 05600-00-00-017CO
LIMITS OF DISTURBANCE: 0.75 ACRES
SETBACK: 75' FRONT
25' SIDE
35' REAR
ZONING: RURAL AREA
MAGISTERIAL DISTRICT: WHITE HALL
SOURCE OF BOUNDARY AND TOPOGRAPHY: TIMMONS GROUP.
28 IMPERIAL DRIVE
STAUNTON, VA 24401
(540)-885-0786
SOURCE TOPOGRAPHY: TIMMONS GROUP, JULY 25, 2019
DATUM: HORIZONTAL: NAD83 VIRGINIA STATE GRID SOUTH ZONE
VERTICAL: NAVD88 ESTABLISHED THROUGH LEICA
SMARTN ET
SITE AREA: 75.0 ACRES
PROPOSED USES: ADA RAMP AND SOFTBALL FIELD IMPROVEMENTS
BUILDING AREA: FOOTPRINT 388 S.F TOTAL (FIELDHOUSE)
EXISTING IMPERVIOUS AREA (WITHIN PROJECT LIMITS): 0.26 ACRES
NEW IMPERVIOUS AREA (WITHIN PROJECT LIMITS): 0.36 ACRES
WETLAND IMPACTS: NONE
WATER SUPPLY: ACSA
SANITARY SEWER: ACSA
DRAINAGE DISTRICT: RIVANNA
THERE ARE NO CRITICAL SLOPES LOCATED WITHIN THE PROJECT LIMITS.
THERE ARE NO CONSTRUCTION ACTIVITIES PROPOSED WITHIN THE 100-YR FLOODPLAIN.
THE SITE IS LOCATED IN A WATER SUPPLY PROTECTION DISTRICT.
VVAHS SITE IMPROVEMENTS
VSMP PLAN
COUNTY OF ALBEMARLE, VIRGINIA
WHITE HALL DISTRICT
9/23/2019
k C
�+C PROJECT
LOCATION
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Midway
VICINITY MAP
SCALE: 1" = 2000'
OWNER:
ALBEMARLE COUNTY SCHOOL BOARD
401 MCINTIRE RD
CHARLOTTESVILLE, VA 22902
CONTACT: JOE LETTERI
TELEPHONE: (434) 975-9340
FAX: (434) 975-9341
ENGINEER OF RECORD:
TIMMONS GROUP
608 PRESTON AVE.
CHARLOTTESVILLE, VA 22903
CONTACT: JONATHAN SHOWALTER, P.E.
TELEPHONE: 434-327-1681
Sheet List Table
Sheet Number
Sheet Title
C0.0
COVER
C0.1
OVERALL PLAN
C1.0
NOTES & DETAILS
C1.1
NOTES & DETAILS
C2.0
EXISTING CONDITIONS - RAMP
C2.1
EXISTING CONDITIONS - FIELDHOUSE
C2.2
DEMOLITION PLAN - RAMP
C2.3
DEMOLITION PLAN - FIELDHOUSE
C3.0
EROSION & SEDIMENT CONTROL NOTES & DETAILS
C3.1
EROSION & SEDIMENT CONTROL NOTES & DETAILS
C3.2
EROSION & SEDIMENT CONTROL PHASE 1 - RAMP
C3.3
EROSION & SEDIMENT CONTROL PHASE 1 - FIELDHOUSE
C3.4
EROSION $ SEDIMENT CONTROL PHASE 2 - RAMP
C3.5
EROSION & SEDIMENT CONTROL PHASE 2 - FIELDHOUSE
C4.0
LAYOUT - RAMP
C4.1
LAYOUT - FIELDHOUSE
C5.0
GRADING - RAMP
C5.1
GRADING - FIELDHOUSE
C5.2
STORMWATER SUMMARY PLAN
C6.0
STORMWATER MANAGEMENT PLAN
C7.0
STORMWATER PROFILES
TOTAL SHEETS = 21
APPROVALS
DATE
DEPARTMENT OF C0TN1N RNTTY DEVELOPMENT
PLANNER/ZONING
ENGINEER
INSPECTIONS
ARS
DEPARTMENT OF FIRE RESCUE
ADEV AISLE COI]NTTY SERVICE AUTHORITY
VIRGiNTA DEPARTMNT OF TRANSPORTATION
HEALTH DEPARTMENT
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DATE
08-20-2019
DRAWN BY
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DESIGNED BY
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CHECKED BY
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C5.1, C5.2
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09-23-2019
DRAWN BY
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DESIGNED BY
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CHECKED BY
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JOB NO.
44314
SHEET NO.
Co.1
GENERAL NOTES
1. ALL MATERIALS AND CONSTRUCTION SHALL BE IN ACCORDANCE WITH CURRENT VIRGINIA
DEPARTMENT OF TRANSPORTATION'S SPECIFICATIONS AND STANDARDS.
2. PRIOR TO ANY CONSTRUCTION, THE CONTRACTOR SHALL CONSULT THE ENGINEER AND VERIFY THE
APPROVAL OF THE PLANS BY ALL FEDERAL, STATE AND LOCAL AGENCIES.
3. LAND USE PERMITS (LUP-A) MUST BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF
TRANSPORTATION PRIOR TO BEGINNING ANY CONSTRUCTION WITHIN THE EXISTING STATE
MAINTAINED RIGHT OF WAY (INCLUDING ACCESS).
4. THE CONTRACTOR SHALL VERIFY THE ELEVATIONS OF ALL POINTS OF CONNECTION OR PROPOSED
WORK TO EXISTING CURBS, SANITARY LINES, WATERLINES, ETC, PRIOR TO CONSTRUCTION.
5. UPON DISCOVERY OF SOILS THAT ARE UNSUITABLE FOR FOUNDATIONS, SUBGRADES, OR OTHER
ROADWAY CONSTRUCTION PURPOSES, THE CONTRACTOR SHALL IMMEDIATELY CONTACT THE
OWNER. THESE AREAS SHALL BE EXCAVATED BELOW PLAN GRADE AS DIRECTED BY THE OWNER,
BACKFILLED WITH SUITABLE MATERIAL AND COMPACTED IN ACCORDANCE WITH CURRENT.
6. ALL STORM SEWER DESIGN AND CONSTRUCTION TO BE IN ACCORDANCE WITH VDOT I AND I LD-94 (D)
121.13.
7. ALL STORM SEWER PIPE SHALL BE REINFORCED TONGUE AND GROVE CONCRETE PIPE IN
ACCORDANCE WITH ASTM-C-76. PIPE WITHIN THE RIGHT OF WAY SHALL BE MINIMUM CLASS III OR
GREATER IN ACCORDANCE WITH CURRENT VDOT STANDARDS AND SPECIFICATIONS.
8. IF PRE -CAST UNITS ARE TO BE USED, VDOT SHALL BE NOTIFIED AND THE MANUFACTURER SHALL
SUBMIT DRAWING DETAILS FOR REVIEW. CERTIFICATION AND VDOT STAMP WILL BE REQUIRED ON
ALL UNITS.
9. ALL CONCRETE SHALL BE A3-AE (AIR ENTRAINED 3,000 PSI), UNLESS OTHERWISE NOTED.
10. DESIGN CHANGES, SPECIFIED MATERIALS CHANGES AND/OR FIELD CHANGES FROM THE APPROVED
PLANS NEED TO BE RESUBMITTED TO THE ENGINEER PRIOR TO PROCEEDING WITH THE WORK. A
LETTER OF EXPLANATION SHALL ACCOMPANY THE REVISED PLANS AND/OR THE DRAINAGE
CALCULATIONS, WHICH MUST BE SUBMITTED AND APPROVED BY THE ENGINEER.
11. CONTRACTOR SHALL VERIFY LOCATION AND ELEVATION OF ALL UNDERGROUND UTILITIES SHOWN
ON PLANS IN AREAS OF CONSTRUCTION PRIOR TO STARTING WORK. CONTACT ENGINEER
IMMEDIATELY IF LOCATION OR ELEVATION IS DIFFERENT FROM THAT SHOWN ON PLAN. IF THERE
APPEARS TO BE A CONFLICT, AND/OR UPON DISCOVERY OF ANY UTILITY NOT SHOWN ON THIS PLAN,
CALL MISS UTILITY OF CENTRAL VIRGINIA AT 1-800-552-7001. THE OWNER SHALL BE RESPONSIBLE
FOR THE RELOCATION OF ANY UTILITY WITHIN EXISTING AND/OR PROPOSED RIGHT-OF-WAY
REQUIRED BY THE DEVELOPMENT.
12. THE INSTALLATION OF SEWER, WATER, AND GAS MAINS (INCLUDING SERVICE LATERALS AND
SLEEVES) SHALL BE COMPLETED PRIOR TO THE PLACEMENT OF AGGREGATE BASE COURSE.
13. ALBEMARLE COUNTY APPROVAL OF CONSTRUCTION PLANS DOES NOT PRECLUDE THE RIGHT TO
REQUIRE ADDITIONAL FACILITIES AS DEEMED NECESSARY.
14. A PRIME COAT SEAL BETWEEN THE AGGREGATE BASE AND BITUMINOUS CONCRETE WILL BE
REQUIRED AT THE RATE OF 0.30 GALLONS PER SQUARE YARD (REC-250 PRIME COAT) PER VDOT
STANDARDS AND SPECIFICATIONS.
15. THE SCHEDULING OF AGGREGATE BASE INSTALLATION AND SUBSEQUENT PAVING ACTIVITIES SHALL
ACCOMMODATE FORECAST WEATHER CONDITIONS PER SECTION 315 OF THE ROAD AND BRIDGE
SPECIFICATIONS.
16. THE OWNERS REPRESENTATIVE SHALL HAVE APPROVED THE AGGREGATE BASE COURSE(S) FOR
DEPTH, TEMPLATE AND PERFORMED THE REQUIRED FIELD INSPECTION (PROOF ROLL) PRIOR TO
PLACEMENT OF ANY SURFACE COURSE(S). CONTACT THE OWNER FOR INSPECTION FOR THE
AGGREGATE BASE COURSE(S) 48 HOURS PRIOR TO APPLICATION OF THE SURFACE COURSE(S).
17. A GEOTECHNICAL ENGINEER IS TO ASCERTAIN CAUSE AND CERTIFY RECOMMENDED METHOD OF
REPAIR FOR ALL PAVEMENT STRUCTURAL FAILURES PRIOR TO STATE ACCEPTANCE. (N/A)
18. ALL VEGETATION AND ORGANIC MATERIAL MATERIAL IS TO BE REMOVED FROM THE PROPOSED
PAVEMENT LIMITS PRIOR TO CONDITIONING OF THE SUBGRADE.
19. CERTIFICATION AND SOURCE OF MATERIALS ARE TO BE SUBMITTED TO THE OWNER FOR ALL
MATERIALS AND BE IN ACCORDANCE WITH THE ROAD AND BRIDGE SPECIFICATIONS, AND ROAD AND
BRIDGE STANDARDS.
20. ALL APPROACH GUTTERS TO SAG INLETS SHALL MAINTAIN A MINIMUM SLOPE OF 0.004 ft./ft.
21. ALL NEW HANDICAP ACCESSIBLE REQUIREMENTS ON -SITE AND WITHIN ALL NEW STRUCTURES SHALL
COMPLY WITH THE 2009 UNIFORM STATEWIDE BUILDING CODE, 2009 VIRGINIA CONSTRUCTION CODE,
2010 ADA STANDARDS FOR ACCESSIBLE DESIGN AND ICC/ANSI A117.1-03.
22. REFER TO SHEET L1.0 FOR ALL LANDSCAPING GENERAL NOTES.
23. VISIBILITY OF ALL MECHANICAL EQUIPMENT FROM THE ENTRANCE CORRIDOR SHALL BE ELIMINATED.
GENERAL CONSTRUCTION NOTES FOR EROSION AND
SEDIMENT CONTROL
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.
8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE.
9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH
RUNOFF -PRODUCING 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 THAT MAINTAINS LATERAL
SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND
AND STRUCTURES/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 APPROVAL 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 APPROVAL BY THE COUNTY
EROSION CONTROL INSPECTOR.
19. MAINTENANCE: ALL MEASURES SHALL BE INSPECTED WEEKLY AND AFTER EACH RAINFALL EVENT. ANY
DAMAGE OR CLOGGING TO STRUCTURAL MEASURES SHALL BE REPAIRED IMMEDIATELY. SILT TRAPS
SHALL BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED
AREAS SHALL BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND
DIVERSION DYKES WHICH COLLECT SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED
IMMEDIATELY.
20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS OF
FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE
COUNTY EROSION CONTROL INSPECTOR.
21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WTIHIN 1 YEAR OF THE DATE OF
APPROVAL. (WATER PROTECTION ORDINANCE SECTION 17-204G.)
22. PERMANENT VEGETATION SHALL BE INSTALLED ON ALL DENUDED AREAS WITHIN NINE (9) MONTHS
AFTER THE DATE THE LAND DISTURBING ACTIVITY COMMENCED. (WATER PROTECTION ORDINANCE
SECTION 17-207B)
ALBEMARLE COUNTY ENGINEERING 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.
3. EROSION AND SILTATION CONTROL MEASURES SHALL BE PROVIDED IN ACCORDANCE WITH THE
APPROVED EROSION CONTROL PLAN AND MUST 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 (HORIZONTAL:VERTICAL). WHERE REASONABLY OBTAINABLE,
LESSER SLOPES OF 3A 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.
8. 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).
ALBEMARLE COUNTY STORMWATER MANAGEMENT NOTES
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 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.
BLASTING NOTES
1. BLASTING SHALL NOT BE PERMITTED ON THIS PROJECT.
NOTES: 1.5"DIA GALV.
1. FINE BROOM FINISH ALL STAIRS.
2. RAIL ON BOTH SIDES OF STEPS RAIL (TYP.) 12" MIN
(TYP.)
(IF NOTED)
3. SEE PLAN FOR RISER HEIGHT
4. MAX. CENTER TO CENTER SPACING
BETWEEN STAIR POST TO BE 6'.
ADD CENTER POST IF NECESSARY
TO MAINTAIN MAX. SPACING 3'-O"
(TYP.) EXP.
JOINT
FINISHED
12" MIN GRADE
(TYP.) 12" CONCRETE
(TYP.)
3'-0"
1 /2" R
4
(MAX.)
FINISHED 1/8" °
GRADE WASH
1'-4"
EXa--8"-. CORE DRILL CONCRETE FOR
JOINT ° 0 5„ HANDRAIL POST, EMBED
1/8', o o c HANDRAIL A MINIMUM OF 6"
WASH ° o o BELOW FINISHED GRADE AND
GROUT TO THE FULL DEPTH
OF EMBEDMENT (TYP.)
+' 5" # 57 STONE
#3 REBAR (12" O.C.)
1'-0" 9 (2) #5 REBARS, BOTTOM CONTINUOUS,
3„ LAP 2'-2" AT SPLICES
COMPACTED SUBGRADE
3"
1'-4"
EXTERIOR STAIRS
No Scale
No Scale
7-1/2"
ANCHOR WITH 5/$" Rnmmm
IMBEDDED 24" IN GROUND-
2 PER WHEEL STOP
-
METER STEEL
FILLED WITH
-RETE. BOLLARD
.L BE PAINTED
OW
PAVEMENT
2'-0" DIAMETER
CONC. FOOTING
LEGEND
ROADS
TRAFFIC STOP BAR
STORM PIPE & STRUCTURE NO
�®
DROP INLET & STRUCTURE NO.
CURB
CURB & GUTTER
- - 200 - -
EXISTING CONTOUR
200
PROPOSED CONTOUR
TIC 240.5
PROPOSED SPOT ELEVATION
10
PARKING COUNT
GRADING
TC = TOP OF CURB
EP = EDGE OF PAVEMENT
EX. = EXISTING
PROP.=PROPOSED
APPROX. = APPROXIMATELY
° EP/ FC/ GUTTER °
4
LENGTH AS
1 SHOWN ON PLAN 1
CURB CUT DETAIL
No Scale
EXISTING PAVEMENT PROPOSED PAVEMENT
>
o_ SAWCUT THROUGH a
MATCH EX. CROSS
U EX. SURFACE
w
SLOPE UNLESS OTHERWISE
X COURSE
w
SPECIFIED ON PLANS
w & REMOVE
PAVEMENT
PROPOSED
2„ + ,I'I
"COU SEE
EXISTING
PAVEMENT
MILL EX.
SURFACE COURSE
SAWCUT EX. BASE COURSE
EDGE OF PAVEMENT AGGR. BASE
NOTE: PROPOSED PAVEMENT MUST TIE
IN WITH EXISTING PAVEMENT
PAVEMENT REPLACEMENT JOINT DETAIL
No Scale
4"
TOP OF CURB R=2"
SURFACE
8 VDOT A-3 CONCRETE
BASE
CONTINUE 21 B STONE BASE
FROM ADJACENT PAVEMENT
SECTION UNDER CURB
VDOT STANDARD CG-2 CURB
No Scale
1.5" DIA. GALV.
NOTES:
1. PROVIDE SHOP
DRAWINGS FOR
HANDRAIL FOR
REVIEW PRIOR TO
CONSTRUCTIONS
2. RAIL ON BUILDING
SIDE OF RAMP TO
BE MOUNTED TO
BUILDING FACE.
4" MAX
SLC P
ff AS SHOWN IN PLAN MAX. 1:12
� o
GTH o 0 0 �o
0.5' FROM EP z
PRECAST CONCRETE WHEEL STOP
No Scale
i
-ICI MAX 6'
S-0"
a
CORE DRILL CONCR� ,
HANDRAIL POST, EMBED HANDRAIL A
MINIMUM OF 6" BELOW FINISHED
GRADE AND GROUT TO THE FULL
DEPTH OF EMBEDMENT (TYP.)
ADA RAMP AND HANDRAIL DETAIL
No Scale
0 0 0 0 0 00 ,
0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
2.0" BITUMINOUS CONCRETE SURFACE COURSE - SM-9.5A
(PLACED IN SINGLE LIFT)
8" TYPE 21 B AGGREGATE BASE COURSE
COMPACTED S U BG RAD E
DENOTES LIGHT DUTY ASPHALT PAVEMENT ON PLANS
LIGHT DUTY ASPHALT PAVEMENT SECTION
No Scale
R= %4" CONTROL JOINT SPACED
AT WIDTH OF WALK (MAXIMUM)
1„ a
EXPANSION JOINT AT MAX OF 30', WITH
PREMOLDED EXPANSION FILLER
CONC. WALK
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°
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\O O O O O O O O O O O O O O O O O O O O O O
COMPACTED SUBGRADE 4" 21-B STONE
CONCRETE SIDEWALK JOINT DETAIL
No Scale
VARIABLE WIDTH'
NON -SLIP BROOM FINISH MAX. CROSS SLOPE 2%
a
a
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i
4' 3,000 PSI AIR -ENTRAINED
CONCRETE
COMPACTED SUBGRADE 4" TYPE 21 B STONE
NOTE: SIDEWALKS SHALL BE CONSTRUCTED IN
ACCORDANCE WITH VDOT STANDARDS.
�o
°
CONCRETE SIDEWALK PAVEMENT SECTION
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ASPHALTIC CONCRETE SURFACE
;OURSE - SM-9.5A
1" INTERMEDIATE BASE COURSE - BM25.OA
I" TYPE 21-B AGGREGATE SUBBASE COURSE
COMPACTED SUBGRADE
DENOTES HEAVY DUTY ASPHALT PAVEMENT ON PLANS
HEAVY DUTY ASPHALT PAVEMENT SECTION
No Scale
EXPANSION JOINT WITH
PREMOLDED EXPANSION 1/4" SEALANT
FILLER, "ZIP STRIP" OR NON SLIP BROOM FINISH
EQUIV., SEAL WITH WWF 6x6 W2.9xW2.9
SILICONE SEALANT \
2"
\ 10" 3,000 PSI AIR ENTRAINED PORTLAND
CEMENT CONCRETE
6" TYPE 21 A STONE COVER
/\\ / /\\ COMPACTED SUBGRADE (CBR 11.2
DENOTES CONCRETE SERVICE AREA PAVEMENT ON PLANS
HEAVY DUTY CONCRETE SECTION
No Scale
a
EP/ FC
TOR AS SHOWN IN PLAN. SLOPE NOT TO EXCEED 1: 12
WHEN ALONG SIDEWALK
CURB WIPE DOWN DETAIL
No Scale
EP/ FC
V OR AS SHOWN ON PLAN
WHEN NOT ALONG SIDEWALK
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DRAWN BY
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SCALE
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1201 DI
APPROX. DRAIN AREA = 39.75 SQ IN
APPROX. WEIGHT =15 LBS
NyLO LASr
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DUCTILE RON
014.95
77
1.25
011.64
DIMENSIONS ARE FOR REFERENCE ONLY
ACTUAL DIMENSIONS MAY VARY THIS PRINT DISCLOSES SUBJECT MATTER IN WHICH DRAWN BY AWA MATERIAL 3130 VERONA AVE
DIMENSIONS ARE IN INCHES NYLOPLAST HAS PROPRIETARY RIGHTS. THE RECEIPT BUFORD, GA 30518
GRATE HAS LIGHT DUTY RATING OR POSSESSION OF THIS PRINT DOES NOT CONFER, DATE 3.5-00 PHN (770) 932-2443
QUALITY: MATERIALS SHALL CONFORM TO ASTM A536 GRADE 70-50-05 TRANSFER, OR LICENSE THE USE OF THE DESIGN OR Nylo las ♦ l FAX (77) 932-2490
PAINT: CASTINGS ARE FURNISHED WITH A BLACK PAINT TECHNICAL INFORMATION SHOWN HEREIN REVISED BY EBC PROJECT NO./NAME www.nyloplast-us.com
REPRODUCTION OF THIS PRINT OR ANY INFORMATION TITLE
SIZE OF OPENING MEETS REQUIREMENTS OF AMERICAN DISABILITY CONTAINED HEREIN, OR MANUFACTURE OF ANY DATE 4-13-11
ACT AS STATED IN FEDERAL REGISTER PART III, DEPARTMENT OF ARTICLE HEREFROM, FOR THE DISCLOSURE TO OTHERS 12 IN DROP IN
JUSTICE, 28 CFR PART 36. IS FORBIDDEN, EXCEPT BY SPECIFIC WRITTEN
PERMISSION FROM NYLOPLAST. ®zon unoausr DWG SIZE A SCALE 1:6 SHEET 1 OF 1 DWG NO. 7001-110-021 REV D
NYLOPLAST DRAIN BASIN WITH DOME GRATE
(1, 2) INTEGRATED DUCTILE IRON
GRATE TO MATCH BASIN O.D.
A0�4
MINIMUM PIPE BURIAL
DEPTH PER PIPE
MANUFACTURER
(3) VARIABLE INVERT HEIGHTS RECOMMENDATION
AVAILABLE (ACCORDING TO (MIN. MANUFACTURING
PLANS(rAKE OFF) REQ. SAME AS MIN. SUMP)
(4) VARIOUS TYPES OF INLET & OUTLET ADAPTERS
AVAILABLE: 4"- 36" FOR CORRUGATED HDPE
(ADS N-12/HANCOR DUAL WALL, ADS/RANCOR
SINGLE WALL), N-12 HP, PVC SEWER (EX: SDR 35),
PVC DWV (EX: SCH 40), PVC C900/C905,
CORRUGATED & RIBBED PVC
WATERTIGHT JOINT
(CORRUGATED HDPE SHOWN)
1 - 8" - 30" DOME GRATES SHALL BE DUCTILE IRON PER ASTM A536
GRADE 70-50-05.
2 - 8" & 10" DOME GRATES FIT ONTO THE DRAIN BASINS WITH THE USE
OF A PVC BODY TOP. SEE DRAWING NO.7001-110-045.
3- DRAIN BASIN TO BE CUSTOM MANUFACTURED ACCORDING TO PLAN
DETAILS. RISERS ARE NEEDED FOR BASINS OVER 84" DUE TO SHIPPING
RESTRICTIONS. SEE DRAWING NO.7001-110-065.
4- DRAINAGE CONNECTION STUB JOINT TIGHTNESS SHALL CONFORM TO
ASTM D3212 FOR CORRUGATED HOPE (ADS N-121HANCOR DUAL WALL),
N-12 HP, & PVC SEWER (4" - 36").
5 - ADAPTERS CAN BE MOUNTED ON ANY ANGLE 0° TO 360°. TO DETERMINE
MINIMUM ANGLE BETWEEN ADAPTERS SEE DRAWING NO.7001-110-012.
6 - 8" - 30" DOME GRATES HAVE NO LOAD RATING.
(5) ADAPTER ANGLES VARIABLE
0° - 360' ACCORDING TO PLANS
4" MIN ON 8" - 24"
6" MIN ON 30" & 36"
(3) VARIABLE SUMP DEPTH
ACCORDING TO PLANS
(6" MIN. ON 8" - 24",10" MIN. ON 30"
& 12" MIN. ON 36"
BASED ON MANUFACTURING REQ.)
THE BACKFILL MATERIAL SHALL BE CRUSHED STONE OR OTHER
GRANULAR MATERIAL MEETING THE REQUIREMENTS OF CLASS I,
8'-36- CLASS II, OR CLASS III MATERIAL AS DEFINED IN ASTM D2321.
BEDDING & BACKFILL FOR SURFACE DRAINAGE INLETS SHALL BE
PLACED & COMPACTED UNIFORMLY IN ACCORDANCE WITH ASTM D2321.
NOTES:
1. PROVIDE SHOP
DRAWINGS FOR
HANDRAIL FOR
REVIEW PRIOR TO
CONSTRUCTIONS
2. RAIL ON BUILDING
SIDE OF RAMP TO
BE MOUNTED TO
BUILDING FACE.
AS SHOWN IN
1.5" DIA. GALV.
T-0"
4" MAX
MN_ MAX. 1:12
a a
MAX 6'
CORE DRILL CONCR� ,
HANDRAIL POST, EMBED HANDRAIL A
MINIMUM OF 6" BELOW FINISHED
GRADE AND GROUT TO THE FULL
DEPTH OF EMBEDMENT (TYP.)
ADA RAMP AND HANDRAIL DETAIL
No Scale
(1, 2) INTEGRATED DUCTILE IRON
FRAME & GRATE TO MATCH BASIN O.D.
(3) VARIABLE INVERT HEIGHTS
AVAILABLE (ACCORDING TO
PLANS/TAKE OFF)
NYLOPLAST DRAIN BASIN WITH STANDARD GRATE
MINIMUM PIPE BURIAL
DEPTH PER PIPE
MANUFACTURER
RECOMMENDATION
(MIN. MANUFACTURING
REQ. SAME AS MIN. SUMP)
(4) VARIOUS TYPES OF INLET & OUTLET ADAPTERS
AVAILABLE: 4" - 30" FOR CORRUGATED HDPE
(ADS N-12/HANCOR DUAL WALL, ADS/HANCOR
SINGLE WALL), N-12 HP, PVC SEWER (EX: SDR 35),
PVC DWV (EX: SCH 40), PVC C900/C905,
CORRUGATED & RIBBED PVC
WATERTIGHTJOINT
(CORRUGATED HDPE SHOWN)
1- 8"- 30" STANDARD GRATES SHALL BE DUCTILE IRON PER ASTM A536
GRADE 70-50-05.
2- 12" - 30" FRAMES SHALL BE DUCTILE IRON PER ASTM A536 GRADE 70-5D-05.
8" & 10" STANDARD GRATES FIT DIRECTLY ONTO DRAIN BASINS WITH THE
USE OF A PVC BODY TOP. SEE DRAWING NO.7001-110-045.
3 - DRAIN BASIN TO BE CUSTOM MANUFACTURED ACCORDING TO PLAN
DETAILS. RISERS ARE NEEDED FOR BASINS OVER 84" DUE TO SHIPPING
RESTRICTIONS. SEE DRAWING NO.7001-110-065.
4 - DRAINAGE CONNECTION STUB JOINT TIGHTNESS SHALL CONFORM TO
ASTM D3212 FOR CORRUGATED HOPE (ADS N-12/HANCOR DUAL WALL),
N-12 HP, & PVC SEWER (4" - 24").
5 - ADAPTERS CAN BE MOUNTED ON ANY ANGLE 0° TO 360°. TO DETERMINE
MINIMUM ANGLE BETWEEN ADAPTERS SEE DRAWING NO.7001-110.012.
6- 12" - 30" STANDARD GRATES SHALL MEET H-20 LOAD RATING.
7 - 8" & 10" STANDARD GRATES ARE RATED FOR LIGHT DUTY APPLICATIONS
ONLY; NO CONCRETE COLLAR NEEDED FOR LIGHT DUTY RATING.
18" MIN WIDTH GUIDELINE
8" MIN THICKNESS GUIDELINE
(5) ADAPTER
(6, 7) TRAFFIC LOADS: CONCRETE SLAB DIMENSIONS ARE FOR
ANGLES
GUIDELINE PURPOSES ONLY. ACTUAL CONCRETE SLAB MUST BE
VARIABLE 0'-360°
DESIGNED TAKING INTO CONSIDERATION LOCAL SOIL CONDITIONS,
ACCORDING TO
TRAFFIC LOADING, & OTHER APPLICABLE DESIGN FACTORS.
c PLANS
SEE DRAWING NO.7001-110-111 FOR NON TRAFFIC INSTALLATION.
if (3) VARIABLE SUMP DEPTH
ACCORDING TO PLANS
(6" MIN. ON 8" - 24", 10" MIN. ON 30"
4" MIN ON 8" - 24" BASED ON MANUFACTURING REQ.)
6" MIN ON 30"
s
THE BACKFILL MATERIAL SHALL BE CRUSHED STONE OR OTHER
GRANULAR MATERIAL MEETING THE REQUIREMENTS OF CLASS I,
8'-30" CLASS II, OR CLASS III MATERIAL AS DEFINED IN ASTM D2321.
BEDDING & BACKFILL FOR SURFACE DRAINAGE INLETS SHALL BE
PLACED & COMPACTED UNIFORMLY IN ACCORDANCE WITH ASTM D2321.
Asphalt Pavement Restoration Detail for Open Cut Utility Installations
Mill & resurface
*** Saw -cut existing pavement
- / to the full depth of asphalt
12" min. Asphalt Concrete Surface Material*
T_6" min
1.5" min.
10" min.
NOTES:
* Asphalt Concrete Surface Material:
SM-9.5A for ADT < 10,000
SM-9.5D for ADT > 10,000
The district administrator's designee shall determine the
restoration requirements for other pavement types.
** Trench width and pipe bedding shall be in
accordance with VDOT Std. PB-1
*** 12 inches minimum beyond the edge of the trench
on longitudinal open cuts, or 25 feet minimum beyond
the trench centerline on perpendicular open cuts, or as
determined by the district administrator's designee.
Date: August 27, 2014
Mill
& resurface
\
12" min.
Asphalt Concrete Base, Type BM-25.0A
6" Bench
Min.
MAX.6'-0"MAX.6'-0" GRIPPING RAIL
4�/2" O.C. 7;/4" NPS PIPE PICKET
�_4/s" O.C. 5/a" SOLID PICKET
N
GROUNDING
ELECTRODE
RAIL EXPANSION JOINTS AT
F"1'
INTERVALS NOT EXCEEDING
3" MAX.
30 FEET.
1'-3"
POSTS 2" MIN. NPS (2.375" O.D.) SCHEDULE 80 PIPE
RETAINING WALL
RAILS 2" MIN. NPS (2.375" O.D.) SCHEDULE 40 PIPE
EXPANSION JOINT
PICKETS : Y4" MIN. NPS 0.05" O.D.) SCHEDULE 40 PIPE
OR 58 MIN. SOLID STEEL SMOOTH ROUND ROD
HR-1 TYPE
II PEDESTRIAN RAILING
(FOR USE ALONG SIDEWALKS AND RAMPS)
SEE ROADWAY PLANS
2" min.
Aggregate Base Material, Type I
Size No. 21 A or 21 B
7.5" total asphalt
concrete pavement
depth or equal to
/the depth of existing
asphalt concrete,
whichever is greater
Sub -base course depth
shall be 10" or equal to
depth of existing sub -base,
whichever is greater
Horizontal and vertical surfaces
Bench shall be tacked with RC-250 liquid
Min. asphalt at a rate of 0.1 gallon per
SY, or as determined by the
district administrator's designee
\ Select Material Type I with minimum CBR = 30
Class I backfill material in accordance
with Section 302 of the Road and Bridge
Specifications
\ No. 26 or 27 aggregate pipe bedding in
accordance with Sections 205 & 302 of
the Road and Bridge Specifications
SEE ROAD
PLANS
FOR RETAINING
HR 1
WALL DETAILS.
I
MAX. 6'-0" MAX. 6'-0" '1
��/2" DIA. SOLID STEEL SMOOTH
ROUND ROD (TYP.)OR
M
1" STANDARD PIPE.
M
ANCHOR
BOLTS
4" O.C.-►{
(TYPJ
12"
MIN
3" MAX.
T
I
ANCHOR BOLTS
OR TYPICAL SECTIONS CONCRETE STEPS
FOR DISTANCE TO 1/2" NPS SCHEDULE 40 PIPE MIN POSTS 11/2" MIN. NPS (1.90" O.D.) SCHEDULE 80 PIPE
SIDEWALK OR SHARED GRIPPING RAIL RAILS 11/2" MIN. NPS (1.90" O.D.) SCHEDULE 40 PIPE
USE PATH. GROUNDING
12" 2�/q" min. ELECTRODE HR-1 TYPE I HANDRAIL
MIN. (FOR USE ALONG STEPS)
%" SOLID STEEL NOTES
SMOOTH ROUND ROD 1. THE CONTRATOR SHALL SUBMIT DRAWINGS DETAILING ALL
ASPECTS OF FABRICATION AND INSTALLATION OF RAILING,
CONCRETE FOOTING TO INCLUDING CONCRETE FOUNDATIONS FOR APPROVAL BY THE
BE DESIGNED BASED ON GRIPPING RAIL DETAIL ENGINEER PRIOR TO INSTALLATION. SHOP DRAWINGS SHALL
SOIL CONDITIONS. 12" ANCHOR BOLTS (FOR USE ALONG SIDEWALKS AND RAMPS) BE SIGNED AND SEALED BY A PROFFESSIONAL ENGINEER,
MIN. HOLDING A VALID LICENSE TO PRACTICE ENGINEERING IN
GRIPPING RAIL SHALL BE INSTALLED WHEN THE COMMONWEALTH OF VIRGINIA.
THE SIDEWALK OR RAMP GRADES ARE EQUAL 2THAN 5. ALL RAILING COMPONENTS AND FASTENERS SHALL BE GALVANIZED IN
EARTH FOUNDATION DETAIL RAILOWILLRBETNCIDENTAL ORTHE TCOST OFG TOCORACDIEVEEA UNIFORM COATING ONWITH THE CURRENTAALL RSURFA ES VENTNGBIDGEAA�DS
(FOR USE WITH TYPE II & III RAILINGS) THE RAILING. DRAINAGE HOLES FOR GALVANIZING SHALL BE INCLUDED IN THE
SHOP DRAWINGS.
3. ALL FASTENERS SHALL BE IN ACCORDANCE WITH ASTM A307,
MAX. 6'-0" MAX. 6'-0" ASTM A563, AND ASTM F844. ALL ANCHOR BOLTS SHALL BE IN
SEE ROAD PLANS ACCORDANCE WITH AASHTO M314,GRADE 36.
41/2" O.C. -Y4" NPS PIPE PICKET 4" FOR RETAINING 4. A CHEMICAL ANCHOR SYSTEM FROM VDOT'S APPROVED MATERIAL
4�/8" O.C. 5/8" SOLID PICKET 4 WALL DETAILS. LIST MAY BE USED IN LIEU OF CAST IN PLACE ANCHORS AND SHALL
BE INCLUDED IN THE SHOP DRAWINGS.
--� 5. POSTS SHALL BE MITERED TO MATCH GRADE OF RAMPS, SIDEWALKS,
AND STEPS.
I 6. HANDRAILS SHALL MATCH GRADE OF RAMPS SIDEWALKS AND STEPS.
I I I I 7. ALL POSTS AND PICKETS SHALL BE SET PLUMB.
'n B. RAILINGS SHALL BE GROUNDED AND EFFECTIVELY BONDED.
I GROUNSDINDG MEATTERIALS INSTALLATION TO BE IN ACCORDANCE
WITHI I I I 9 COMMERCIALLY
AVAILABLE DESIGN NG AND FFABRICATING
G G SYSTEMS MAY BE USED IN LIEU
OFTHE RAILING. DOCUMENTATION FROM
ANCHOR THE MANUFACTURER VERIFYING THAT PROJECT REQUIREMENTS ARE
RAIL EXPANSION JOINTS AT 1 BOLTS MET WITH THE RAILING SYSTEM SHALL BE SUBMITTED WITH THE
INTERVALS NOT EXCEEDING 3" MAX. INSTALLATION DRAWINGS AND APPROVED BY THE ENGINEER IN
30 FEET. ACCORDANCE WITH NOTE 1.
1'-3" POSTS 2" MIN. NPS (2.375" O.D.) SCHEDULE 80 PIPE 10. HANDRAIL TO BE IN ACCORDANCE WITH THE LATEST EDITION OF
RETAINING WALL RAILS 2" MIN. NPS (2.375" O.D.) SCHEDULE 40 PIPE THE VIRGINIA UNIFORM STATEWIDE BUILDING CODE.
EXPANSION JOINT PICKETS : Y4" MIN. NPS (1.05" O.D.) SCHEDULE 40 PIPE 11. THIS HANDRAIL IS TO BE USED ONLY AS A PROTECTION FOR
OR 5/" MIN. SOLID STEEL SMOOTH ROUND ROD GROUNDING PEDESTRIANS AND SHOULD NOT BE PLACED IN ANY LOCATION
IT MIGHT BETO ANY VEHICULAR
HR-1 TYPE III BICYCLE RAILING ELECTRODE FORRVEHICULAR PRO ECTONTSTANDRD GU RDRAILISHOULD
(FOR USE ALONG SHARED USE PATHS) BE USED.
SPECIFICATION A COPY OF THE ORIGINAL SEALED AND SIGNED DRAWING IS ON FILE IN THE CENTRAL OFFICE. XVID07
REFERENCE STANDARD HANDRAIL ` ROAD AND BRIDGE STANDARDS
105
238 METHOD OF LOCATING AND ERECTING REVISION DATE SHEET 1 OF 1
504 VIRGINIA DEPARTMENT OF TRANSPORTATION 7/11 601.05
\L.Th OF
uN %TWNM. SH{]WALT"ER
l_)e. No. 04U205715I
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DATE
09-23-2019
DRAWN BY
A. MABEE
DESIGNED BY
1. SHOWALTER
CHECKED BY
1. SHOWALTER
SCALE
N/A
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NOTES:
1. HORIZONTAL DATUM IS BASED ON NAD83 (NA2011),
VIRGINIA STATE GRID, SOUTH ZONE. VERTICAL
DATUM IS BASED ON NAVD 88. DATUM ESTABLISHED
THROUGH LEICA SmartNet.
2. TOPOGRAPHIC DATA DEPICTED BASED ON A
CURRENT FIELD SURVEY BY THIS FIRM.
3. THIS IS NOT A BOUNDARY SURVEY. EASEMENTS
MAY EXIST WHICH ARE NOT SHOWN HEREON.
4. MISS UTILITY CONTACTED, TICKET NO.
A918402688-OOA UTILITIES SHOWN AS MARKED; NO
ADDITIONAL SUB -SURFACE UTILITY INVESTIGATION
HAS BEEN PERFORMED BY THIS FIRM.
5. SURVEYAREA DEPICTED HEREON IS A PORTION
OF ALBEMARLE COUNTY PARCEL ID NO. 56-17C IN
THE NAME OF COUNTY OF ALBEMARLE SCHOOL
BOARD. PROPERTYADDRESS IS 5941 ROCKFISH GAP
TURNPIKE, CROZET, VA.
QS
SANITARY MANHOLE (MHS)
®
CLEAN -OUT
WATER VAULT
FIRE HYDRANT
®
WATER VALVE
QD
STORM DRAINAGE MANHOLE (MHD)
SD
STORM DRAINAGE
RCP
REINFORCED CONCRETE PIPE
HDPE
HIGH DENSI TY POL YE TH YL ENE PIPE
CPP
CORRUGATED PLASTIC PIPE
DRAINAGE DIRECTION ARROW
O-
WATER SPIGOT
0
UTILITYPOLE
0*
LIGHT POLE
❑s
ELECTRIC BOX
Qs
ELECTRIC METER
<
GUYANCHOR
SIGN
Op
BOLLARD
MONITOR WELL
@U
UT/LITYMANHOLE
HANDICAP PARKING SPACE
L
UFO
UNDERGROUND FIBER OPTIC /
TELECOM UTILITY
UGP
UNDERGROUND ELECTRIC UTILITY
W
UNDERGROUND WATER -LINE
OHP
OVERHEAD POWER UTILITY
EDGE OF PAVEMENT (EP)
DECIDUOUS TREE (DEC)
L A
CONIFEROUS TREE
SW
LANDSCAPE AREA
EP
SIDEWALK
EG
EDGE OF PAVEMENT
CONC,
EDGE OF GRAVEL
CONCRETE
if
TREE -LINE/ WOODED AREA
GUARDRAIL
CONTOUR INTERVAL = 1'
THIS TOPOGRAPHIC SURVEY WAS COMPLETED UNDER
THE DIRECT AND RESPONSIBLE CHARGE OF PAUL
HUBER FROM AN ACTUAL GROUND SURVEY MADE
UNDER MY SUPERVISION; THAT THE ORIGINAL DATA
WAS OBTAINED ON THE FOLLOWING DATE: JULY 17,
2019. THIS BASE- MAP AND DIGITAL GEOSPATIAL
DATA INCLUDING META DATA MEETS MINIMUM
ACCURACY STANDARDS UNLESS OTHERWISE NOTED.
CIGp\
METAL
HANDRAIL
2 STORY
BRICK BUILDING
WESTERN ALBEMARLE
FFE. HIGH SCHOOL
ELEV=687.39' I \ \
1
I 1
I FFE:
1 \ ELEV=685.35' 7
� I
` 1 /
CONC.
CONS. 1 ' l _ - - - - LANDING
LANDING 1 / /r �/ STEPS
1 / 110" CONC. WALL 4 RISERS3 TREADS
/TOP ELEV=688.84' - _ _ -
STEPS0 RISERS _ _ - / \ CONC. CONC. SW
LANDING
2 STORY 9 TREADS-
BRICKBUILD/NG - - - - A4E7At - _ _ - - 683 - -
HANDRAIL � _ - � -
WESTERN ALBEMARLE - 1 - - - - - -
HIGH SCHOOL CONC. L
LANDING /���� _ -----
/ 680
METAL
STEPS\ — — - - / HANDRAIL -
ST�55
FFE t0 R!IS€RS _ _ \ _�13 RISERS'-
ELEV=676.09' 9 TREADb� - - - - - - \ ,2-TREADS-
FFE _--- \( ----- --� ��
-_--------
ELEV=676.02'
----- 676-- - - - - --
/ \
CONC. SW
675
674-_--_--
\ \ 673 /
610
/ Ile-
6;2
/
/.
/
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cn
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ASPHALT
�Gp l I RAMS
ISHED
J \ /
_ - 669 _ gp9Riri OGp\ l
-9CFs
/
/
/
/
/
668 - - - - - - - - - - - - - - - - - - - '
sl`
1 12" RCP '
1 � BURIED '
'z NO INVERTS � / , , 666
' - 665
k� \
1
/
METAL/STAIRS l
/ / I
/
FFE: I I
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L_
EROSION AND SEDIMENT CONTROL NARRATIVE
MINIMUM STANDARDS:
PROJECT DESCRIPTION
THIS PROJECT INCLUDES A NEW FIELDHOUSE FOR THE SOFTBALL FIELD, NEW ROAD AND ADA PARKING
FOR THE SOFTBALL FIELDS, NEW ADA ACCESSIBLE RAMP FROM THE SCHOOL BUILDING DOWN TO BUS
PARKING, AND ASSOCIATED SITE WORK. LIMITS OF DISTURBANCE ARE 0.75 ACRES.
ADJACENT PROPERTY
THESE IMPROVEMENTS ARE BEING MADE WITHIN THE PROPERTY BOUNDARY. THE PROPERTY IS
BOUNDED BY RESIDENTIAL PROPERTIES AND US-250 ROCKFISH GAP TURNPIKE TO THE NORTH.
RESIDENTIAL PROPERTIES BORDER THE SOUTH AND EAST SIDE. THE WEST SIDE IS BORDERED BY A
CEMETERY AND RESIDENTIAL PROPERTIES.
EXISTING SITE CONDITIONS
THE SITE IS CURRENTLY THE LOCATION OF WESTERN ALBEMARLE HIGH SCHOOL.
OFF -SITE AREAS
NO OFFSITE AREAS WILL BE DISTURBED.
CRITICAL EROSION AREAS
NO CRITICAL EROSION AREA EXIST.
EROSION AND SEDIMENT CONTROL MEASURES
UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT
CONTROL PRACTICES SHALL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS
AND SPECIFICATIONS OF THE CURRENT ADDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL
HANDBOOK. THE MINIMUM STANDARDS OF THE VESCH SHALL BE ADHERED TO UNLESS OTHERWISE
WAIVED OR APPROVED BY A VARIANCE BY LOCAL AUTHORITIES HAVING JURISDICTION.
STORMWATER RUNOFF CONSIDERATIONS
STORMWATER WILL BE TREATED THROUGH BIORETENTION. STORMWATER QUANTITY WILL BE HANDLED
THROUGH LEVEL SPREADERS RETURNING CONCENTRATED FLOW TO SHEET FLOW AS NECESSARY.
EROSION AND SEDIMENT CONTROL MAINTENANCE
ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE MAINTAINED IN ACCORDANCE WITH
VESCH AND THE CONSTRUCTION SEQUENCE, INCLUDING THE INSPECTION OF ALL MEASURES AFTER
ALL RAIN EVENTS.
STRUCTURAL PRACTICES:
1. TEMPORARY CONSTRUCTION ENTRANCE - 3.02 A TEMPORARY CONSTRUCTION ENTRANCE SHALL BE
PROVIDED AT THE LOCATION INDICATED ON THE PLANS. IT IS IMPERATIVE THAT THIS MEASURE
BE MAINTAINED THROUGHOUT CONSTRUCTION. ITS PURPOSE IS TO REDUCE THE AMOUNT OF MUD
TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF.
2. SILT FENCE BARRIER - 3.05 SILT FENCE SEDIMENT BARRIERS SHALL BE INSTALLED DOWNSLOPE
OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT -LADEN RUNOFF FROM SHEET FLOW AS
INDICATED. ITS PURPOSE IS TO INTERCEPT SMALL AMOUNTS OF SEDIMENT FROM DISTURBED
AREAS AND PREVENT SEDIMENT FROM LEAVING THE SITE.
3. STORM DRAIN INLET PROTECTION - 3.07 STONE FILTERS SHALL BE PLACED AT THE INLET OF ALL
DRAINAGE STRUCTURES AS INDICATED ON PLANS. ITS PURPOSE IS TO PREVENT SEDIMENT FROM
ENTERING THE STORM DRAINAGE SYSTEM PRIOR TO PERMANENT STABILIZATION.
4. CULVERT INLET PROTECTION - 3.08 A SEDIMENT FILTER LOCATED AT THE INLET TO A CULVERT TO
PREVENT SEDIMENT FROM ENTERING THE SYSTEM PRIOR TO PERMANENT STABILIZATION.
5. DIVERSION DIKE - 3.09 A TEMPORARY RIDGE OF COMPACTED SOIL TO DIVERT WATER FROM A
A
6.1
7
CERTAIN AREA.
SEDIMENT TRAP - 3.13 A TEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE
TO DETAIN SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS IN "WET" AND "DRY" STORAGE LONG
ENOUGH FOR THE MAJORITY OF SEDIMENT TO SETTLE OUT.
MAINTENANCE OF SEDIMENT TRAP - INSPECT TRAP EMBANKMENT WEEKLY TO ENSURE IT IS
STRUCTURALLY SOUND AND HAS NOT BEEN DAMAGED DURING CONSTRUCTION ACTIVITIES.
ADDITIONALLY THE TRAP SHALL BE CHECKED AFTER EVERY RAINFALL EVENT. ONCE THE SEDIMENT
HAS REACHED THE DESIGNATED CLEANOUT LEVEL IT SHALL BE REMOVED AND PROPERLY DISPOSED
OF.
OUTLET PROTECTION - 3.18 STRUCTURALLY LINED APRONS PLACED AT THE OUTLETS OF PIPES OR
CHANNEL SECTION TO PREVENT SCOUR AND PROTECT THE OUTLETS STRUCTURE.
DUST CONTROL - 3.39 DUST CONTROL IS TO BE USED THROUGH THE SITE IN AREAS SUBJECT TO
SURFACE AND AIR MOVEMENT.
VEGETATIVE PRACTICES:
9. TEMPORARY SEEDING - 3.31 ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE
THAN 30 DAYS SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION
IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELECTION OF THE SEED MIXTURE SHALL
DEPEND ON THE TIME OF YEAR IT IS APPLIED.
10. PERMANENT SEEDING - 3.32 FOLLOWING GRADING ACTIVITIES, ESTABLISH PERENNIAL
VEGETATIVE COVER BY PLANTING SEED TO REDUCE EROSION, STABILIZE DISTURBED AREAS, AND
ENHANCE NATURAL BEAUTY.
MANAGEMENT STRATEGIES
1. PROVIDE SEDIMENT TRAPPING MEASURES AS A FIRST STEP IN GRADING, SEED AND MULCH
IMMEDIATELY FOLLOWING INSTALLATION.
2. PROVIDE TEMPORARY SEEDING OR OTHER STABILIZATION IMMEDIATELY AFTER GRADING.
3. ISOLATE TRENCHING FOR UTILITIES AND DRAINAGE FROM DOWNSTREAM CONVEYANCES IN ORDER
TO MINIMIZE PERIMETER CONTROLS.
4. ALL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE MAINTAINED UNTIL THEY ARE NO
LONGER REQUIRED TO COMPLY WITH THE CONTRACT DOCUMENTS OR STATE LAW.
PERMANENT STABILIZATION
ALL NON -PAVED AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH PERMANENT
SEEDING IMMEDIATELY FOLLOWING FINISHED GRADING. SEEDING SHALL BE IN ACCORDANCE WITH
STD. & SPEC. 3.32, PERMANENT SEEDING. SEED TYPE SHALL BE AS SPECIFIED FOR "MINIMUM CARE
LAWNS" AND "GENERAL SLOPES" IN THE HANDBOOK FOR SLOPES LESS THAN 3: 1. FOR SLOPES
GREATER THAN 3: 1, SEED TYPE SHALL BE AS SPECIFIED FOR "LOW MAINTENANCE SLOPES" IN TABLE
3.32-D OF THE HANDBOOK. FOR MULCH (STRAW OR FIBER) SHALL BE USED ON ALL SEEDED
SURFACES. IN ALL SEEDING OPERATIONS SEED, FERTILIZER AND LIME SHALL BE APPLIED PRIOR TO
MULCHING.
SEQUENCE OF INSTALLATION
PHASE I (SEE SHEET C3.1)
1. A PRE -CONSTRUCTION MEETING IS REQUIRED WITH ALBEMARLE COUNTY E&S INSPECTOR,
CONTRACTOR, OWNER, AND ENGINEER. THIS MEETING SHALL TAKE PLACE ON -SITE. CLEARING
LIMITS MUST BE FLAGGED PRIOR TO THE MEETING WITH ONE (1) WEEK OF NOTICE.
2. INSTALL CONSTRUCTION ENTRANCE, INLET PROTECTION AND SILT FENCE, EXCAVATED SEDIMENT
TRAP, AND DIVERSION DIKES.
3. AFTER ALL EROSION AND SEDIMENT CONTROL MEASURES ARE IN PLACE, SITE WORK CAN BEGIN.
4. ROUGH GRADE PROJECT AREA.
5. SEED ALL DENUDED AREAS PER VESCH STANDARDS.
PHASE II (SEE SHEET C3.2)
1. INSTALL ADDITIONAL INLET PROTECTION WHERE SHOWN ON THE PHASE II EROSION AND
SEDIMENT CONTROL PLAN AS THE STORM SYSTEM IS CONSTRUCTED AND BECOMES OPERATIONAL.
2. FINE GRADE PROJECT AREA. APPLY PERMANENT SOIL STABILIZATION TO THESE AREAS WITHIN
SEVEN DAYS AFTER FINAL GRADE IS ACHIEVED.
3. ALL STORMWATER PIPING & STRUCTURES, INCLUDING DETENTION FACILITIES SHALL BE
INSPECTED FOR SILT/SEDIMENT. IF PRESENT, SILT/SEDIMENT SHALL BE CLEANED OUT FOR THE
SYSTEM TO THE SATISFACTION OF THE E&S INSPECTOR.
4. APPLY PERMANENT SOIL STABILIZATION TO THESE AREAS WITHIN SEVEN DAYS AFTER FINAL
GRADE IS ACHIEVED. SILT FENCE BELOW SEDEMENT TRAP MUST BE MAINTAINED THROUGH
GRADING AND CONSTRUCTION.
4. ONCE ALL CONTRIBUTING DRAINAGE AREAS TO BIRETENTION HAVE BEEN STABILIZED, THE AREA
CAN BE EXCAVATED TO FINAL DEPTH AND THE BIORETENTION UNDERDRAINS AND MEDIA CAN BE
INSTALLED.
5. ONCE ALL CONTRIBUTING DRAINAGE AREAS TO SEDIMENT TRAP HAVE BEEN STABILIZED TRAP CAN
BE REMOVED AND GRADED TO FINAL GRADE.
6. ONCE CONSTRUCTION IS COMPLETE AND ALL CONTRIBUTING AREAS ARE STABILIZED, EROSION
CONTROL MEASURES CAN BE REMOVED UPON APPROVAL FROM THE E&S INSPECTOR.
AN EROSION AND SEDIMENT CONTROL PROGRAM ADOPTED BY A DISTRICT OR LOCALITY MUST BE CONSISTENT WITH THE
FOLLOWING CRITERIA, TECHNIQUES AND METHODS:
MS-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 30 DAYS.
PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR.
MS-2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES 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.
MS-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.
MS-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.
MS-5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS
IMMEDIATELY AFTER INSTALLATION.
MS-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.
MS-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.
MS-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.
MS-9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED.
MS-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.
MS-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.
MS-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.
MS-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.
MS-14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REGULATIONS PERTAINING TO WORKING IN OR CROSSING LIVE
WATERCOURSES SHALL BE MET.
MS-15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS
COMPLETED.
MS-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 THESE REGULATIONS.
F. APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH.
MS-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.
MS-18. 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 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.
MS-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 STANDARDS AND
CRITERIA LISTED IN SECTION 19 OF VIRGINIA ADMINISTRATIVE CODE 9VAC25-840-40 MINIMUM STANDARDS.
GENERAL EROSION AND SEDIMENT CONTROL NOTES:
ES-1: UNLESS OTHERWISE INDICATED, CONSTRUCT AND MAINTAIN ALL VEGETATIVE AND STRUCTURAL
EROSION AND SEDIMENT CONTROL PRACTICES ACCORDING TO MINIMUM STANDARDS AND
SPECIFICATIONS OF THE LATEST EDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL
HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL
REGULATIONS.
ES-2: THE CONTROLLING EROSION AND SEDIMENT CONTROL AUTHORITY WILL MAKE A CONTINUING
REVIEW AND EVALUATION OF THE METHODS AND EFFECTIVENESS OF THE EROSION CONTROL PLAN.
ES-3: PLACE ALL EROSION AND SEDIMENT CONTROL MEASURES PRIOR TO OR AS THE FIRST STEP IN
CLEARING, GRADING, OR LAND DISTURBANCE.
ES-4: MAINTAIN A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN ON THE SITE AT ALL
TIMES.
ES-5: PRIOR TO COMMENCING LAND -DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON
THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFFSITE BORROW OR WASTE AREA), SUBMIT A
SUPPLEMENTARY EROSION CONTROL PLAN TO THE ARCHITECT/ENGINEER AND THE CONTROLLING
EROSION AND SEDIMENT CONTROL AUTHORITY FOR REVIEW AND ACCEPTANCE.
ES-6: PROVIDE ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND
SEDIMENTATION AS DETERMINED BY THE RESPONSIBLE LAND DISTURBER. (MODIFIED NOTE)
ES-7: ALL DISTURBED AREAS SHALL DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES
DURING LAND -DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT.
ES-8: DURING DEWATERING OPERATIONS, PUMP WATER INTO AN APPROVED FILTERING DEVICE.
ES-9: INSPECT ALL EROSION CONTROL MEASURES DAILY AND AFTER EACH RUNOFF- PRODUCING
RAINFALL EVENT. MAKE ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS
OF THE EROSION CONTROL DEVICES IMMEDIATELY.
SOILS INFORMATION:
713- BRADDOCK LOAM, 2 TO 7 PERCENT SLOPES. MORE THAN 80 INCHES TO PARALITHIC BEDROCK, WELL
DRAINED. HYDROLOGIC SOIL GROUP: B
37C3 - HAYESVILLE CLAY LOAM, 7 TO 15 PERCENT SLOPES, MORE THAN 80 INCHES TO PARALITHIC BEDROCK,
WELL DRAINED. HYDROLOGIC SOIL GROUP: B
37D3 - HAYESVILLE CLAY LOAM, 15 TO 25 PERCENT SLOPES, MORE THAN 80 INCHES TO PARALITHIC BEDROCK,
WELL DRAINED. HYDROLOGIC SOIL GROUP: B
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DRAWN BY
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DESIGNED BY
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JOB NO.
44314
SHEET NO
C3.0
■
SILT FENCE CULVERT INLET PROTECTION ❑❑E100 0 1. SET THE STAKES. 2. EXCAVATE A 4"X 4" TRENCH UPSLOPE
NOTE: ALL PROPOSED OUTLET PROTECTION SHALL BE 12" boo■■��■ ® I� ALONG THE LINE OF STAKES. G�LT)j
ENDWALL DIAMETER AVERAGE, BROWNSTONE. 110 j j jj� 6' 4 � *-P
TOE OF PIPE OUTLET CONDITIONS _ � - �1llllll :u,, %ISH)WAL 1R
FILL CULVERT A AI��` I_x. No. 04U2057151
OFLOW'l 4 9%2.3fC3�.?�
III III r-A. �y
3. STAPLE FILTER MATERIAL TO STAKES AND 4. BACKFILL AND COMPACT THE 0NA t GhC�
EXTEND IT INTO THE TRENCH. EXCAVATED SOIL.
3do do
LFLATAREA
O PERSPECTIVE VIEW
* TOE OF H NOFILL NEL �� Jill�� III! o E
SILT ��
FENCE * DISTANCE IS PLAN VIEW - FLOW / N
6' MINIMUM IF ** o III =II > 0
FLOW OPTIONAL STONE COMBINATION
FLOW IS SHEET FLOW INSTALLATION
E
1.0' 1.5' La O (PERSPECTIVE VIEW) _ }
TOWARD FABRIC (ATTACH 3' F- W > �
EMBANKMENT TO POSTS WITH
0 % METAL TIE FLOW MAX. Q 0 3
_ A A C) LL 2
I= B
w O co ,1
ry 2.5' -� d AIBRIC // \\ d J U W O
FLOW LINE POST // \ Cl > O LU "�
SECTION A -A FILTER KEY IN 6"-9"; RECOMMENDED FOR CONVENTIONAL �p GROUND LINE ���� _ \ W Fj `� a
CLOTH ENTIRE PERIMETER 6' METAL(T)oR = -
\\ MAX. G IIII I 2 `"'
** 5' MIN. MAX. U) POSTS
BRACING�CON-RETE FOOTING z F- X U
VDOT #3, #357, #5, #56 OR #57 COARSE � O cn V)
CLASS I POINTS A SHOULD BE HIGHER THAN POINT B. Q _j Q
AGGREGATE TO REPLACE SILT FENCE IN RIPRAP A SAF PERSPECTIVE VIEW PERSPECTIVE VIEW 3.10 Of W a; p
HORSESHOE WHEN HIGH VELOCITY OF FLOW PLASTIC FENCE METAL FENCE SF DRAINAGEWAY INSTALLATION 3.05-2 0 = = N z
FRONT ELEVATION) _ U > ID O
IS EXPECTED A 3do (MIN.) SAFETY FENCE ( Q
SILT FENCE (W/O WIRE SUPPORT) 00)
1 �' No Scale m `� w
CIP 3.08-1 TABLE 3.31-B No scale 00
W J
PIPE OUTLET TO WELL ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS o
ULVERT INLET PROTECTION
DEFINED CHANNEL "QUICK REFERENCE FOR ALL REGIONS" _,rONE -70' MIN. -
C
No Scale PLAN VIEW CONSTRUCTION
PLANTING DATES SPECIES RATE (LBS./ACRE) ACCESS -3" SV-2A ASPHALT -0P �
rr
La COURSE �- E X15' IN(; O
SEPT. 1 -FEB. 15 50/50 MIX OF _ 2% ` PAVrMFNT =
ANNUAL RYEGRASS
0 % (LOLIUM MULTI-FLORUM)
& 50-100 6" MIN. 21A AGGREGAI= EASE _
III- CEREAL (WINTER) RYE o
SECTION A -A (SECALE CEREALE) PROFILE
LU
KEY IN 6%9"; RECOMMENDED FOR > LU
CLOTH ENTIRE PERIMETER LU
NOTES: FEB. 16 - APR. 30 ANNUAL RYEGRASS 60-100 U o
1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION BASKET, OR (LOLIUM MULTI-FLORUM) aTONE . 0' M;N- z
CONCRETE. ) O
2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED USING PLATES 1_`)N i ;_ rR1) I ION ASPHALT PAVED
3.18-3 AND 3.18-4. MAY 1 - AUG. 31 GERMAN MILLET 50 ACCESS r--Q WASHRACK cn DATE
OP 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 (SETARIA ITALICA
INCHES. ) ? 09-23-2019 (H)
TSEXIST:NC 1' O
OUTLET PROTECTION 2% 2% � PAVFVFNT- DRAWN BY
TEMPORARY SEEDING PLANT MATERIALS t2% =2 h4:N.k
� A. MABEE
Sediment Trap design #1 No Scale ,
DESIGNED BY
TABLE 3.32-D --POSIT;VF DRAINAGE
1. SET POSTS AND EXCAVATE A LINE
2. STAPLE WIRE FENCING TO THE drainage area (acres) (<3) 1.87 ,' vvARweLE-� SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA `MUST EXTEND FULL WIDTH '-`lJ TO SEDIMENT J. SHOWALTER
TRENCH UPSLOPE ALONG THE LINE OF POSTS. I I I of INCP,ESS AND EGRESS �
' rr�A�PINc l'I:V1CF •
POSTS. trap volumes: ORIGIW�L CREST OF STONE WEIR VARIABLE* OPERATION
6elevation (ft) area (sf) volume(cy) E�elo \ TOTAL LBS. PER ACRE • CHECKED BY
656.25 787 �a - - 0 MINIMUM CARE LAWN PLAN J. SHOWALTER
_ I � 659.25 1664 136.2 DRY STORAGE '
COMMERCIAL OR RESIDENTIAL 175-200 LBS. •
661 2281 127.8 KENTUCKY 31 OR TURF -TYPE TALL FESCUE 90-100% • SCALE
i I 1 11� 111111 IMPROVED PERENNIAL RYEGRASS 0-5% -1?' Vlv E(i: n VL URAINAGL
KENTUCKY BLUEGRASS 0-5% 1TO SEDIVENT • N/A
/=1 I- _ 11 1-1' WET STORAGE 2�
FLOW 1=_III-III- tF�A?FLING DEVICE
,III=III- 1- (EXCAVATED)
FLTER CLOTH GROUND GENERAL SLOPE (3:1 OR LESS)
4" "E 1 KENTUCKY 31 FESCUE 128 LBS. Y�
wet storage: n C-
9 _
SEE PLATE 3.13 t COARSE AGGREGATE— CLASS I RIPRAP RED TOP GRASS 2 LBS. FILTER uL� I -I •
wet storage required (cy) (67*DA) 125.3 SEASONAL NURSE CROP * 20 LBS. SECTION AzA
bottom of stone weir (ft) 659.25 150 LBS.
3. ATTACH THE FILTER FABRIC TO THE wet storage provided at this elevation (cy) 136.2 **coarse aggregate shall be VDOT #3, #357 of #5 LOW -MAINTENANCE SLOPE (STEEPER THAN 3:1)
4. BACKFILL AND COMPACT THE ?i 11711111111u11 vtiaker tap of 1 nlch Must be ulstalled with a nT1111111tu11 1 nlcll ballcocic
slope of wet storage sides 2:1 KENTUCKY 31 FESCUE 108 LBS.
WIRE FENCE AND EXTEND IT INTO THE EXCAVATED SOIL. sl><irtoffvah!e supplynig a wash hose with a diameter• of 1.5 niches for aclegt><ate
TRENCH. weir length (ft) (6xDA) 12.0 RED TOP GRASS 2 LBS.
dry storage: bottom of trap elevation (ft) 656.25 SEASONAL NURSE CROP * 20 LBS. constant presstu•e. Wash water' u><trst be c.a>tYied away fi•orrr the er><h•ar><ce to arr
dry storage required (cy) (67*DA) 125.3 bottom trap dimensions: 43'x22' CROWNVETCH ** 20 LBS. approved siiii dr area to Tee o f sednueut. es. seclirner><t shall be prererited fiar><r< (n
ICI j = crest of stone weir 661.0 top of dam elevation (ft) 662 150 LBS. enter�rl� storm drains, ditches or watercourses. J
dry storage provided at this elevation (cy) 127.8 top width of dam (ft) 3 ~
* USE SEASONAL NURSE CROP IN ACCORDANCE WITH SEEDING DATES PAVED WASH RACK Q
slope of dry storage sides 2:1 top trap dimensions 45'x64'
�- AS STATED BELOW: CE
FLOW �� I� III r.0 S.,
II=III- III -III -I FEBRUARY 16TH THROUGH APRIL.................................. ANNUAL RYE w
-I 11=III _I II -III ST 3.13 MAY 1ST THROUGH AUGUST 15TH ............................ FOXTAIL MILLET Q
I
AUGUST 16TH THROUGH OCTOBER ............................... ANNUAL RYE PAVED CONSTRUCTION ENTRANCE o�
SEDIMENT TRAP #1 NOVEMBER THROUGH FEBRUARY 15TH........................ WINTER RYE
No Scale No Scale 7
** SUBSTITUTE SERICEA LESPEDEZA FOR CROWNVETCH EAST OF Z
EXTENSION OF FABRIC AND WIRE INTO COMPACTED SOIL CWD TO HAVE VDOT FARMVILLE, VA (MAY THROUGH SEPTEMBER USE HULLED SERICEA, ALL 2 X 4" WOOD SILT FENCE DROP INLET PROTECTION DROP INLET WITH w LU
THE TRENCH.
STANDARD EC-2 OTHER PERIODS, USE UNHULLED SERICEA)' IF FLATPEA IS USED IN LIEU FRAME GRATE O
MATTING ON UPHILL
FILTER FABRIC 18" MIN. SIDE OF CROWNVETCH, INCREASE RATE TO 30 LBS./ACRE. ALL LEGUME SEED
FLOW MUST BE PROPERLY INOCULATED. WEEPING LOVEGRASS MAY BE 1 5, _� SAME W z z
ADDED TO ANY SLOPE OR LOW -MAINTENANCE MIX DURING WARMER MAX. - \
-III W I Rl= 1llL 1llL llL JllL 1llL llL 1llL -�_ / u J
SEEDING PERIODS; ADD 10-20 LBS./ACRE IN MIXES. � `- � I i
II=1II=1II ll=1II=1II- 0 \\ 0
3' >
MIN.
4.5' MIN. GATHER z z
SSF 3.05-1 DD CWD 3.09 PS EXCESS
O
O O 3.32 C O 0
J CORNERS � AT G
CONSTRUCTION OF A SILT FENCE WITH WIRE SUPPORT TEMPORARY DIVERSION DIKE PERMANENT SEEDING MIX FOR PIEDMONT AREA PERSPECTIVE VIEWS J U
No Scale No Scale No Scale
a
STAKE LU
70' MIN. 5.1 EXISTING Z
A 3' PAVEMENT FABRIC III ~� LUCw
1d1ew-III-w�1� ,- - 1 J G
�l w, TI III 1„ _ MIN. Q 1_4
FILTER 6 M MOUNTABLE BERM_ I11 0
...................
CLOTH A (OPTIONAL) °
EXISTING GROUND SIDE ELEVATION ; A` LU
70' MIN. '1 DETAIL A U)
WASHRACK0' MIN.
B OPTIONAL ELEVATION OF STAKE AND FABRIC ORIENTATIO06
N
Q 10 EXISTING SPECIFIC APPLICATION Z
12' MIN. MIN. PAVEMENT THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE INLET 0
DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER THAN 5%) WHERE
VDOT #1 COARSE AGGREGATE B POSITIVE T 10 MIN. THE INLET SHEET OR OVERLAND FLOWS (NOT EXCEEDING 1 C.F.S.) ARE ~
DRAINAGE TO L lP TYPICAL. THE METHOD SHALL NOT APPLY TO INLETS RECEIVING 3.07-1 * MUST EXTEND FULL WIDTH OF SEDIMENT CONCENTRATED FLOWS, SUCH AS IN STREET OR HIGHWAY MEDIANS. O
INGRESS AND EGRESS OPERATION TRAPPING DEVICE clL
PLAN VIEW STORM DRAIN INLET PROTECTION LU
No Scale
12' MIN.
3" MIN.
MIN.
FILTER CLOTH SECTION A -A
6'-7"
a
JOB NO.
CE REINFORCED CONCRETE DRAIN SPACE 3.02
SECTION B-B 0 44314
S�cale
ONE CONSTRUCTION ENTRANCE SHEET NO.
C3' 1
SOIL TYPE:
7B
LIMITS OF
DISTURBANCE =
0.20 AC.
TOTAL =
0.55+0.20 = 0.75
2 STORY
BRICK
BUILDING
WESTERN
ALBEMARLE
HIGH SCHOOL
STEPS I
10 RISERS
9 TREADS
FFE:
ELEV=676.09' ,
GRAVEL CONSTRUCTION
ENTRANCE TO BE USED Mae
AS WASH RACK _
� SF s,2---------
` C E s1,o
ASPI�AL T
669 sr o
CFS
668--- - - - - --
S��
- 667--------
666
2 STORY
BRICK
BUILDING
WESTERN
ALBEMARLE
HIGH SCHOOL FFE:
C()Il TVpr=-
LCONC. svv5
SSF 674 _
67'
-- -__ 610
' 672 SIF /
�
i
/
12" RCP
BURIED
— — NO INVERTS
/ 6
SSF 66
g65
METAL AIRS
/
i
I
I
I
I
� I
6 p
A
04o4
C1Fs
680
SOIL TYPE:
37C3
i
SOIL TYPE:
37D3
EROSION CONTROL LEGEND
LIMITS OF CLEARING AND GRADING
-
■������6-
DRAINAGE DIVIDE
-
SOIL AREA DIVIDE
-
CE
PAVED CONSTRUCTION ENTRANCE
3.02
SF
SUPER SILT FENCE
3.05
SSF
SILT FENCE
3.05
IP ®
O
INLET PROTECTION
3.07
DD
DIVERSION DIKE
3.09
CWD
CLEAN WATER DIVERSION
3.09
ST
SEDIMENT TRAP
3.13
OP
OUTLET PROTECTION
3.18
TS
TEMPORARY SEEDING
3.31
PS
PERMANENT SEEDING
3.32
MU
MULCHING
3.35
DC
O
DUST CONTROL
3.39
L
* "VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK" SPECIFICATION NUMBER
Ll
co
00
a
z
SCALE 1 "=20'
0 20' 40'
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LIMITS OF CLEARING AND GRADING
-
DRAINAGE DIVIDE
-
SOIL AREA DIVIDE
-
CE
PAVED CONSTRUCTION ENTRANCE
3.02
SFXX XX
SUPER SILT FENCE
3.05
SSFX X
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3.05
IP ®
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3.07
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DIVERSION DIKE
3.09
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CLEAN WATER DIVERSION
3.09
ST
SEDIMENT TRAP
3.13
OP
OUTLET PROTECTION
3.18
TS
TEMPORARY SEEDING
3.31
PS
PERMANENT SEEDING
3.32
MU
MULCHING
3.35
DC
DUST CONTROL
3.39
* "VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK" SPECIFICATION NUMBER
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LIMITS OF CLEARING AND GRADING
-
DRAINAGE DIVIDE
-
SOIL AREA DIVIDE
-
C E
PAVED CONSTRUCTION ENTRANCE
3.02
SF
SUPER SILT FENCE
3.05
SSF
SILT FENCE
3.05
IP ®
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3.07
DD
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3.09
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CLEAN WATER DIVERSION
3.09
ST
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3.18
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3.31
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3.32
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3.39
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7.65'
17.74'
BACK -STOP
BACK -FLOW
PREVENTER
RAISED DECK OVER
CONCRETE WITH STAIRS
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ARCHITECTURAL PLANS
FOR DETAILS.
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MATCHLINE 2
REMOVE AND REPLACE
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PAVEMENT
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ASPHALT TIE TO EXISTING
ASPHALT PER
PAVEMENT
REPLACEMENT
JOINT DETAIL
REMOVE AND REPLACE
GRAVEL UP TO 8" MIN.
DEPTH W/ VDOT 21 B STONE
OR MATCH EXISTING
INV. IN = 672.86'
10" HDPE
1
11
11
11
11
11
11
11
11
11
11
11
11
11
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10" HDPE
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<
m
CLEAN -OUT (4"- METAL)
TOP=687.56'
(TYP UNK.)
TIE PROPOSED FORCEMAIN
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Q d CONCRETE PAD
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WIDTH 2 = 6' I n 665.iT ° ° ° ° ° ° \\ \ \\ \ \ \ \ \\_ - - - 674 - - - - - - - \\ / - - - - - - - - - - \ \ \ \
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LEGEND:
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SUMMARY FROM RUNOFF REDUCTION SPREAD SHEET FOR
DRAWN BY
\4 \\ 1 1
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00
A. MABEE
REDEVELOPMENT (SEE CALC. BOOK):
Q
DISTURBED AREA: 0.75 ACRES
DESIGNED BY
•
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PRE -DEVELOPMENT LAND COVER:
SCALE 1"=50'
B SOILS:
•
CHECKED BY
0.49 AC TURF
•
J. SHOWALTER
0 50' 100'
/ ��
PRE CONDITION
0.26 AC IMPERVIOUS
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•
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B SOILS:
•
_ _
0.36 AC TURF
_
0.39 AC IMPERVIOUS
REQUIRED REMOVAL: 0.30 LBS/YR
�- - - -CMD
X
ONSITE TREATMENT IS PROPOSED BY THE BIORETENTION FACILITY, AS CALCULATED IN
I------- 1
THE VIRGINIA RUNOFF REDUCTION METHOD SPREADSHEET, TABS A (LEVEL 1).
CL
\
LEVEL 1 BIORETENTION FACILITY: 0.30 LB/YR.
\-------
911
THEREFORE THE REQUIRED REMOVAL IS MET BY THE LEVEL 1 BIORETENTION FACILITY.
---- lc \ _
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DRAINAGE AREA
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1. 24" BIOFILTER MEDIA DEPTH SHALL BE THE MINIMUM DEPTH AFTER A SETTLING
PERIOD OF THREE DAYS.
/ 1
QUALITY SIZING CALCULATION:
DRAINAGE AREA = 0.65 ACRES
IMPERVIOUS: 0.15 ACRES T(v)= 880 CF X 1.00 = 880 CF
PERVIOUS: 0.50 ACRES
BIORETENTION � / / / •' \ \ 1 1
/ \ 1
/ LEVELIAREA 1
DESIGN STORAGE DEPTH: (2' X 0.25) + (1.5' X 0.4) + 0.5' PONDING = 1.6'
00
SURFACE AREA REQUIRED: T(v) / DESIGN STORAGE DEPTH -> 880 / 1.4' = 550 SF
0
SURFACE AREA PROVIDED: 556 SF
-
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JOB NO.
BIORETENTION FACILITY 1 DETAIL (LEVEL 1)
44314
SCALE 1"-50'
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/ /i�/ // , 0 ' 100,
50
C6.0
L
a)
2-
U
C
0
102: ES-1 for 12 inch Pipe
STA 10+06.28
U)
w
TOP 669.01
0
INV OUT 667.84 (101)
RR.r,
m
E
C7
-a
c0
c
c
_ LID
o
m
� I
o
N ..
In
" N
208: 24" Nylolast Basin - Standard Grate
>,'
00 Mo 00
oo
STA 10+00.00
Z+o
co -
0
0z Q
TOP684.45
ZO
_O>
O z
INV OUT 680.53 (207)
o
>
�
CV
(/) H Z Z
RRf, RAn
680
680
675
675
PROP.
670
GRADE
670
EXIST.
GRADE
665
665
10
11.34' O
12" CL III RC
@ 3.00°
660
660
204: 12" Nylolast Basin - Standard Grate
STA 10+43.46
TOP 683.25
INV IN 679.56 (205)
INV OUT 679.46 (203)
202: 12" Nylolast Basin - Standard Grate
STA 10+72.05
TOP 678.91
INV IN 675.60 (203) 302: 24" Nyloplast Basin - Dome Grate
INV OUT 675.39 (201) STA 10+00.00
TOP 663.50
200: ES-1 for 12 inch Pipe INV OUT 658.27 (301)
STA 10+97.76
TOP 673.53
INV IN 672.43 (201) Ran R7n
685
1
685
PROP.
GRADE
2,
1
EXIST.
GRADE
680
680
207
205
8.55' OF
34.92' OF
12" HDPE
12" HppE
@ 2.00%
@ 2.00%
\
675
675
203
28.58' OF
12" HDPE
@ 13.50%
670
LEVEL 670
SPREADER2
665
665
9+50 10+00 11+00 9+50
S T R 1 02 - S T R 1 00
HORIZ SCALE: 1 "=50'
VERT SCALE: 1 "=5
10+00 11+00
STR208 - STR200
HORIZ SCALE: 1 "=50'
VERT SCALE: 1 "=5
665
655
650
300: ES-1 for 15 inch Pipe
STA 10+35.24
TOP 658.24
INV IN 656.86 (301)
PROP.
GRADE
EXIST.
GRADE
30 1
1S , 24 OF
00%� LEVEL
SPREADER
650
506: 12" Nyloplast Basin - Pedestrian Grate
aD
STA 10+32.62
cc
Cu
TOP 665.62
O
O
INV IN 663.51 (507)
M
INV OUT 663.51 (505)
c
Cu
�
�
U
m
508: 24" Nyloplast Basin - standard grate
c
STA 10+16.49
ccu
co cu
S o TOP 665.00
m
t m
LID
cY, � INV IN 664.14 (509)
M
00 M
00
o o o rn INV OUT 663.64 (507)
0
0 o
N L6 (0 510: 12" Nyloplast Basin - Pedestrian Grate
z
0C"I
oo o co z
M o r-- � w C) STA 10+00.00
o��
+o�� o Qom- TOP 665.63
N
< 0- O c�
m z O U) OP ? INV OUT 664.26 (509)
�U)
4�Pzz
RRn
RRn RRn
PROP
GRAD
675
675
EXIST
GRAD
T' \
670
_
2.5'
670
1
665
403 \
8 0,
OF
RCP
0, 07
76".9,0
665
00.
660
660
655
655
12+00 9+50 10+11+50 9+50
T R3 0 2 - S T R3 0 0
HORIZ SCALE: 1 "=50'
VERT SCALE: 1 "=5
10+00 11+00
STR404 - STR400
HORIZ SCALE: 1 "=50'
VERT SCALE: 1 "=5
BOTTOM OF
CHANNEL 0.5'
GRADE OF DEEP.
SURROUNDING SLOPE
4'
-504: 12" Nyloplast Basin - Pedestrian Grate
STA 10+49.51
TOP 665.62
INV IN 663.39 (505)
INV OUT 663.39 (503)
502: 12" Nyloplast Basin - Pedestrian Grate
STA 10+66.40
TOP 665.62
INV IN 663.26 (503)
INV OUT 663.26 (501)
500: ES-1 for 12 inch Pipe
STA 10+87.95
TOP 664.20
INV IN 663.10 (501)
RRn
675
675
EXIST.
GRADE
670
670
PROP.
GRADE
665
509
665
16
49' OF 503
6"
HDPE 16.89' OF
@
0.75% 12" HDPE
660
0 5011660
507
16.1
' OF 12'
HDPE
12„ HDPE
505
@
.75%
16.89' OF
@ 0.75%
12" HDPE
@ 0.75%
655
655
12+00 9+50 1S11+50
TR510 - STR500
CURB LINE OR PIPE
OUTFALL
RIPRAP NOT TO IMPEDE
STORM FLOW TO OPENING
KEY IN 6"-9" FOR
ENTIRE PERIMETER
L18" \-VDOT STD. CLASS Al
RIPRAP RECESSED INTO
GROUND
MIRAFI 140N FILTER
FABRIC OR EQUIVALENT
RIPRAP CHANNEL DETAIL
No Scale
*LEVEL SPREADER TIMBER LENGTH (L) CALCULATIONS
DRAINAGE AREAS FROM C5.2
LEVEL SPREADER 1:
DRAINAGE AREA = 0.78 AC
C*A = 0.367
Tc = 6 MIN
1(10) = 6.5 IN/HR
Q(10) = (0.367)(6.5) = 2.39 CFS
L = 13 LF x 2.39 CFS INFLOW (10-YR STORM EVENT USED)
L = 13 LF X 2.39 CFS = 31.1'=> 32.0'
LEVEL SPREADER 2:
DRAINAGE AREA = 0.07 AC
C*A = 0.03
Tc = 6 MIN
1(10) = 6.45 IN/HR
Q(10) = (0.03)(6.47) = 0.20 CFS
L = 13 LF x 0.196 CFS INFLOW (10-YR STORM EVENT USED)
L = 13 LF X 0.196 CFS = 2.54'=> 3.0'
LEVEL SPREADER 3 (BIO RETENTION):
DRAINAGE AREA = 0.66 AC
C*A = 0.31
Tc = 6 MIN
1(10) = 5.26 IN/HR
Q(10) = (.310)(5.26) = 1.61 CFS
L = 13 LF x 1.63 CFS INFLOW (10-YR STORM EVENT USED)
L = 13 LF X 1.63 CFS = 21.2'=> 22.0'
LEVEL SPREADER DETAIL
No Scale
BOTTOM OF
CHANNEL 0.5'
DEEP.
CHANNEL SECTION
GRASS CHANNEL,
HORIZ SCALE: 1 "=50'
VERT SCALE: 1 "=5
IV LVIVV 7'F'-F Lr V/�1
COATED REBAR
5
0 50
PROFILE SCALE
MAINTENANCE NOTE: INSPECTIONS SHALL TAKE PLACE ANNUALLY,
IDEALLY DURING THE NON -GROWING SEASON. SEDIMENTS SHOULD BE
CLEANED OUT OF THE LEVEL SPREADER FOREBAYS AND FLOW
SPLITTERS.
12"
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4 *�6
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DATE
09-23-2019
DRAWN BY
A. MABEE
DESIGNED BY
1. SHOWALTER
CHECKED BY
1. SHOWALTER
SCALE
1 "=50'
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