HomeMy WebLinkAboutWPO201800032 Plan - VSMP WPO VSMP 2019-01-16Site Information
Site:
Baker Butler Elementary School
2740 Proffit Rd
Owner:
County of Albemarle School Board
Superintendent of Schools
401 McIntire Road
Charlottesville VA , 22902
Zone: RA Tax Map Parcel:
04600-00-00-03000
Legal Reference: Mageristerial District:
D.B.1951 Pg.228 Rivanna
Watershed:
South Fork Rivanna River - Watershed
Powell Creek - Sub Watershed
Proposed Parking:
13 Spaces
i. i • 1 • � 1' • 1
Sheets Prepared for:
Cover Sheet
L1
Erosion and Sediment Control Notes
.........
EST. QTY.
Storm Water Management Notes
L2
Erosion and Sediment Control Plan
L5
Layout &, grading plan
L4
Layout &, grading plan
L5
Details
L6
Stormwalter
L7
Stormwalter
L8
Stormwater
Albemarle Countv Final Plan General Notes
Albemarle County
Project Management Division
401 McIntire Road
Charlottesville, VA 22902
Prepared by:
Land Planning and Design Associates
1006 E. Jefferson Street, Suite B
Charlottesville, VA 22902
(434) 296-2108
1. Prior to any construction within any existing public right-of-way, including connection to existing road, a permit shall be obtained from the Virginia Departmentartment
of
Transportation (VDOT). This plan as drawn may not accurately reflect the requirements of the permit. Where anydiscre discrepanciesies occur the of t
he 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 (horizontal:veaical). Where reasonably obtainable, lesser slopes of 3:1 or better are to be achieved.
6. Paved, rip rap or stabilization mat lined ditch maybe requited when in the opinion of the County Engineer, or designee, it is deemed necessary in orderto stabilize a drainage channel.1.
7. All traffic control signs shall conform with the Virginia Manual forUniform Traffic Control Devices.
8 Unless otherwise noted all concretepipe shall be reinforced concrete pipe- Class 111.
9. All excavation for underground pipe installation must comply with OSHA Standards for the Construction Industry (29 CFR Part 1926).
GENERAL NOTES
1. The contractor is responsible for reviewing all drawings and specifications. Any discrepancies shall be brought to the attention of the landscape architect immediately.
2. Existing conditions base information is a combination of gis data provided by albemarle county and gis field points collected by Ipda. Land Planning and Design (LPDA) does not warrant or
guarantee the completeness nor the accuracy of the property information shown herein. The contractor shlall verify all dimensions, grades, boundaries, utilities, and related information prior to
construction. Should any discrepancies be found, the owner and the landscape architect shall be notified innmediately.
3. The Contractor is responsible for obtaining all permits. Permits may include, but are not limited to, VDOT' land use permits, Albelmarle County building & electrical permits, and power
company permit for connection. Contractor is responsible for compliance with permit requirements and any applicable environmental requirements, whether listed in E&S plan, grading permit,
approved VSMP plan or not. Owner (Albemarle County) will delegate SWPPP responsibilities to contractor.
4. The owner shall secure the services of a geotechnical engineer during construction and shall be responsible for the sole expense. The geotechnical engineer shall approve all subgrades
prior to placement of base material.
5. A copy of the approved construction documents and written specifications, permits, and erosion and sedimentation control plan(s), including the swppp, shall be kept on site at all times.
6. All vehicular traffic on all roads throughout project area shall be maintained.
7. Existing underground utilities are not shown on the site survey data provided by Albemarle County via GIS data. Utilities may exist within the construction area of these plans that are not
shown. The contractor shall be responsible for determining the exact location and depth of all utilities before commencing work, and for any damages which occur by his failure to locate such
utilities. If during construction operations the contractor should encounter utilities other than those shown on these plans, they shall immediately notify the owner and take necessary and proper
steps to protect the utility and assure continuance of service. the contractor is responsible for contacting miiss utility (toll free at 1.800.552.7001) prior to undertaking any work so that all utilities
within the limits of work, or affected by the work, shall be clearly identified and marked.
8 Any field survey required for laying out and establishing grades for the site as indicated on the plans shall be included in the contract lump sum bid price for construction. LPDA is not
responsible for the stakeout.
9 Materials used and methods of construction shall adhere to the current observed VDOT Road and Bridge Specifications, Road and Bridge Standards, Manual on Uniform Traffic Control
Devises, and land use permit special provisions.
f
LAND PLA.N.NING &► DESIGN
A
MISS UTILITY OF VIRGINIA
APPROVED BY:
2 VDOT
..... ...
Spec
........ ............ ...................... ............................ ................_ ............... ...... ..........
Site Improvements
.........
EST. QTY.
QTY. UNIT
TOTAL
10642
3`�5
6" x 6' Wide 21A Agg. Base for Asphalt Trail (2,101 LF)
. .... 350
Ten
$ -
........ .... ......._
1042
...
315
... .......... . .....
6 x $ 11�lide 21A A Base for Asphalt Trail jf1,14C LF
26C}
Ton
$ -
10642 ..315
y�y,
10" - 21 A A . Base for Parkin 196 } F
��. tiJ,....._
90
Ten
$
.. ... ..
27500
. ...i
30
.... ...... ......._....,.. ......,... ............... .... ...... ............ .. ... ..... .:
Geotextile under trail
2414
....
....... .... SY
$ -
......
1065
ATM
..... .....
2"x 6' Wide Asphalt Trail TY. SM -9 5-2" X2,101 LFA
........ '154
Ten
$ -
.........
10635
.......
ATM
....... ......:,,, ... ..........
iF 8'
2 x 8 Wide Asphalt Trail TY. SM -9.5-2 (1,140 LFj
p }:: t.......... r
110
Ton
....
$__ -
10635
ATM
.......... ,. ,:.. ..,,-
Asphalt for Parkin
37
Ten
........ .. ......
$
NS
.......... ......
NS
_ _......... ...... ..�J............................................. .......... ............ ....... ......... ........
Boulder _ 1.5-2 Ton/Each
1.1
.._ EA
$ -
..........
.
54020
704
:Type A Pavement Markin 4" - White
Yl g
495 ;
LF
$ -
50430
700
......... _ ........ . ........ ............._ .............. ..
Compact Car Parking Sign
_..
3
EA
$
2702
ATrQ
Regular seed (permanent Seed)
1
LS
$
... .
................
SUBTOTAL,
..... ... ... .
$
Materials Quantities
NOTE: All material quantities shall be for estimate purposes only. The contractor shall be responsible for the full scope of the construction documents. See Bid Form.
APPROVED
by the Nbemarle County
Community De\jelc �;rn rpt Department
Date_ i 14`' '----- —
�.,
R-
Vicinitv Ma
m=ILPDA
LAND PLANNING & DESIGN
A S S 0 C I A T E S
310 East Maid Street, Suite 200
Charlottesville, Virginia i www.lpda.net
434 296 2108 0 Fax 434 296 2109
Project Title
Albemarle County,
Virginia
A
-;;-i WILLIAM R. MECHNICK
0
No. 000844
August 31, 2018
G
'4�DSCAPE X61%h�
No. Revision Dale
Drawn by TAC Checked by MEL
Scale V=20' Date August 31, 2013
Issued For
Drawing Title
� i f
Drawing Number
Project Number
EROSION & SEDIMENT CONTROL NARRATIVE
1. PROJECT DESCRIPTION: THIS PROJECT CONSISTS OF CONSTRUCTING A TRAIL AROUND THE
BAKER -BUTLER ELEMENTARY SCHOOL CAMPUS AND PAVING AN INFORMAL PARKING AREA. THE LAND
CONSISTS OF OPEN LAWN SPACE, PLAYING FIELDS, AND FOREST AND THE TOTAL LAND DISTURBANCE IS
APPROXIMATELY 19,000 SQUARE FEET (0.4362 ACRES) - THESE VALUES ARE ACCEPTABLE TO ENGINEERING.
LPDA UNDERSTANDS THESE VALUES ARE ACCEPTABLE TO ALBEMARLE COUNTY.
2. EXISTING SITE CONDITIONS: THE SITE CONSISTS OF OPEN FIELDS AND TURF AREAS AROUND THE
SCHOOL BUILDING AND PARKING AREA IN THE CENTER OF THE SITE WITH FOREST AROUND THE
PERIMETER. THERE IS A CREEK ON THE PROPERTY, WHICH THE CONSTRUCTION WILL CROSS VIA AN
EXISTING CULVERT.
3. ADJACENT AREAS: ADJACENT AREAS CONSIST MAINLY OF LOW DENSITY RESIDENTIAL NEIGHBORHOODS
IN A WOODED SETTING.
4. OFF-SITE AREAS: IF OFF SITE BORROW OR WASTE AREAS ARE NEEDED, SOIL SHALL BE TAKEN FROM A SITE WITH
AN APPROVED EROSION AND SEDIMENT CONTROL PLAN. SILT FENCE WILL BE INSTALLED AROUND STOCKPILES OF
TOPSOIL. IF TOPSOIL STOCKPILES ARE NOT USED IN 7 DAYS, THEY SHALL BE SEEDED WITH A TEMPORARY SEED MIX.
5. SOILS: THE SITE SOILS CONSIST PRIMARILY OF GLENELG LOAM (-75%) WITH SOME AREAS OF HAZEL
LOAM (-15%) AND MEADOWVILLE LOAM (^'10%). THIS COMPLEX EXHIBITS A HYDROLOGIC SOIL GROUP
CLASSIFICATION OF B, EXCEPT FOR MEADOWVILLE LOAM WHICH IS CLASSIFIED AS A. THE TYPICAL SOIL
PROFILE IS AS FOLLOWS:
GLENEG LOAM 2-15 PERCENT SLOPE: 0 TO 8 INCHES - LOAM, 8 TO 28 INCHES - SILTY CLAY LOAM, 28 TO 80
INCHES - LOAM. THE WATER TABLE IN THIS AREA IS GREATER THAN 80 INCHES DEPTH.
GLENEG LOAM 15-25 PERCENT SLOPE: 0 TO 65 INCHES - LOAM. THE WATER TABLE IN THIS AREA IS
GREATER THAN 80 INCHES DEPTH.
HAZEL LOAM: 0 TO 20 INCHES - LOAM, 20 TO 30 INCHES - CHANNERY LOAM, 30-79 INCHES - BEDROCK. THE
WATER TABLE IN THIS AREA IS GREATER THAN 80 INCHES DEPTH.
MEADOWVILLE LOAM: 0 TO 79 INCHES - LOAM. THE WATER TABLE IN THIS AREA IS GREATER THAN 80
INCHES DEPTH.
6. CRITICAL AREAS: THERE ARE CRITICAL SLOPES AND AREAS WITHIN AND ADJACENT TO THE PROJECT SITE.
THESE AREAS ARE STEEP SLOPES WITH IN OR ADJACENT TO THE LIMITS OF CONSTRUCTION AND A SMALL
CREEK THAT RUNS THROUGH THE SITE. THE CRITICAL AREAS ARE MARKED ON THE PLAN.
7. EROSION & SEDIMENT CONTROL MEASURES: REFER TO SHEET L2 FOR ALL EROSION AND
SEDIMENTATION CONTROLS, INCLUDING STATE STANDARD DETAILS. REFER TO THIS SHEET FOR EROSION
AND SEDIMENT CONTROL MEASURES AND NOTES, INSTALLATION SEQUENCE, GRADING NOTES, AND
MINIMUM STANDARD COMPLIANCE.
8. PERMANENT STABILIZATION: THE SITE WILL BE STABILIZED THROUGH THE USE OF PERMANENT SEEDING
AND PAVEMENT. SEEDING INFORMATION, DATES AND AMENDMENTS ARE INCLUDED ON THE EROSION
AND SEDIMENT CONTROL PLANS (SHEET 1-2). SOIL TESTING SHALL BE COMPLETED BY THE CONTRACTOR
TO DETERMINE THE SUITABILITY OF EXISTING SOILS AND THE NEED FOR ANY SOIL AMENDMENTS TO
ENSURE THAT PERMANENT SEEDING WILL GROW EFFECTIVELY. PERMANENT STABILIZATION TO BE
COMPLETED WITHIN NINE (9) MONTHS AFTER THE DATE THE LAND DISTURBING ACTIVITY COMMENCED.
(WATER PROTECTION ORDINANCE SECTION 17-207B.)
9. STORMWATER RUNOFF CONSIDERATIONS: REFER TO SHEETS L6 - L9.
10. CALCULATIONS: SEE NOTES THIS SHEET.
11. MAINTENANCE: ALL E&S MEASURES SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT
LEAST DAILY DURING PROLONGED RAINFALL. REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. THE
CONSTRUCTION ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKING OR
FLOW OF MUD ONTO THE ADJACENT PARK FACILITIES AND ROADWAY THROUGH PERIODIC TOP DRESSING
WITH ADDITIONAL STONE AND/OR WASHING AND REWORKING OF EXISTING STONE.
12. IT IS NOT ANTICIPATED THAT OFF SITE BORROW OR WASTE AREAS WILL BE NEEDED.
13. CONSTRUCTION SCHEDULE: PLEASE REFER TO E AND S INSTALLATION SEQUENCE. IT IS ANTICIPATED
THAT CONSTRUCTION WILL BE APPROXIMATELY 3 MONTHS IN DURATION.
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GENERAL 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.
8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE.
9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF PRODUCING
RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES
SHALL BE MADE 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 APPLIIED
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.
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3 S7`.`;lE"LE. FILTER MATERIAL
TO A';n EXTEND
i P INTO TIH T 4111 1-1.
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4BAC. K1 €I.t. AND COMPACITI
THE EXCAVATED SMI.-
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1.5' MAX.
SILT FENCE DROP INLET
PROTECTION
2 X 4' WOOD FRAME
3DRr1P INLET
aME
E&S INSTALLATION SEQUENCE
1. THE E&S PLAN ON SHEET L2 AND THIS E&S CONSTRUCTION SEQUENCE OUTLINES
THE GENERAL REQUIREMENTS OF THE PROJECT.
2. COUNTY/LANDSCAPE ARCHITECT SHALL FLAG ALL VEGETATION TO BE REMOVED
PRIOR TO ANY LAND DISTURBANCE.
3. CONTRACTOR SHALL INSTALL ALL PERIMETER CONTROLS INCLUDING SILT FENCE.
4. THE CONTRACTOR SHALL INSTALL CONSTRUCTION ENTRANCE.
5. CONTRACTOR MUST CALL THE ALBEMARLE COUNTY E&S INSPECTOR AFTER
INSTALLATION OF PERIMETER CONTROLS AND THE CONSTRUCTION ENTRANCE,
BEFORE PROCEEDING TO LAND DISTURBANCE ACTIVITIES.
6. CONTRACTOR SHALL BEGIN LAND DISTURBING ACTIVITIES AND INSTALL
PERMANENT SEEDING WHEN FINAL GRADES ARE ACHIEVED.
7. SLOPES SHALL BE PERMANENTLY SEEDED AS SOON AS FINAL GRADES ARE
ACHIEVED. SEEDING SHALL BE ACCOMPLISHED THROUGH PERMANENT SEED MIX AS
SPECIFIED.
8. CONTRACTOR SHALL LEAVE ALL CONTROLS IN PLACE UNTIL REMOVAL IS
APPROVED BY THE ALBEMARLE COUNTY E&S INSPECTOR.
9. ONCE COUNTY APPROVAL IS SATISFIED, CONTRACTOR SHALL REMOVE ALL
TEMPORARY CONTROLS AND ADDRESS REMAINING DISTURBED AREAS THROUGH
ADDITIONAL PERMANENT SEEDING.
TABLE 3.32-D
(Revised June 200.3)
PERMANENT SEEDING SPECIFICATIONS FOR PIEDMONT AREA
Seto'
LAND USE
SPECIES
APPLICATION PER. ACRE
S#Yi3:s5..........................
Tall Fescue'
95-10V%
Minimum Care Lawn
Perennial Ryegrass
0-5%n
(Commercial or Residential)
Kentucky Bluegrass'
0-5°!0
TOT AL. 175-200 lbs.
Hicih-Maintenance Lawn
Tall Fescue'
TOTAL: 200-250 lbs.
Tall Fescue'
128 lbs.
General ;lope (3:1 Or less)
Red Top Grass or Creeping Red Fescue
Seasonal Nurse Crop2
2 lbs:
20 lbs.
TOTAL: 150 lbs.
Tall Fescue'
1081bs..
i€iiEg£l..t.,f ££Y43£lI}{f€ f. "s
Red Top Grass or Creeping. Red Fescue
2 lbs:
Low -Maintenance Slone
Seasonal Nurse CroP2.
20 lbs.
3:1)
(Steeper than
Crownvetch3
20 lbs.
TOTAL 150 lbs
I - When selecting varieties of turtgrass, use the Virginia Crap Improvement Association (VCIA) recommended
turfgrass variety list. Quality seed will bear a label indicating that they are approved by VCIA. A current turfgrass'
Variety, list is available>at the local County Extension office or through VCIA at 8504-746-4884 or at
httr-://Sudan. cses.vt, edu/htmIfFurffturf/publications/pub[ications2. html
2 - Use seasonal nurse crop in accordance with seeding dates as stated belovt:
February 161" - April .., ...... ;., . Annual Rye
May 'I" - August 15'� ........ .... ... Foxtail Millet
August 16" - October .:_..: Annual Rye
November - February 15EE' ......... .... ....... Winter Rye
3 Substitute Ser,bQa tespedeza for Crownvetch east of Farmville, VA (May through September use hulled seed,
all other periods, use unhulled Sericea): If Flatpea is used, increase rate to 30 Ibs.Iacre. If Weeping Lovegrass is
used, include in arty slope or IE?vd maintenance mixture doting warmer seeding petiods. increase to.30 -4Q
FERTILIZER & LIME
s Apply 10-201-10 fertilizer at a rata -of 504 lbs f acre. (or 12 lbs 11,000 sa fit;).
Apply Pulverized Agricultural. Limestone. at a rate of 2 tonslacre (or 90 lbs. 11 000 sq. ft.)
NOTE:
A soil test is necessary to determine the actual amount of lime required to adjust the soil pH of site.
Incorporate the Ilene and fertilizer into the top 4 - 6 inches of the soil by disking or by other means..
When applying Slowly Available Nitrogen, use rates available in Erosion & Sediment Control Technical Bulletin
# 4. 2003 Nutrient Management for Development Sites at http:llwww.dcr'state:ua.us/state&s htnn#pubs
Permanent Seeding Schedule
STAKE
ELEVATION OF STAKE AND
FABRIC ORIENTATION
SPECIFIC APPLICATION
Ili
1' MItJ.
DETAIL A
THIS METHOD OF INLET PROTECTION IS APPLICABLE: WHERE THE
INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER
THAN 5%) WHERE THE INLET SHEET OR OVERLAND FLOWS (NOT
EXCEEDING 1 C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT
APPLY TO INLETS RECEIVING CONCENTRATED FLOWS;, SUCH AS
IN STREET OR HIGHWAY MEDIANS.
•• IwIpt Pi-*tP_r.til&*
CURB INLET PROTECTION PRODUCTS: Basis of Design for curb
inlet protection shall be ACF Environmental Gutter Buddy or equal
selected from VDOT"s Approved List and approved by Owner and
Landscape Architect. Follow manufacturer's recommended
installation methods for selected product.
ri irh Inlot hrntontinn natnii
Narrative to Accompany VaRRM .xls (VA Runoff Reduction Method Spreadsheet)
Albemarle County Engineering Division staff (Anderson) visited site 4/27`18 with Project Manager (PMD staff) to
walk length of the proposed asphalt trail. This trail crosses stream buffer and passes through woods along Powell
Creek; there are also upland portions. There are no wetland, stream or stream buffer impacts associated with this
project, based upon design, grade, limited scope, and trail location. Stream buffer mitigation is rani required.
Engineering Division accepts routing limited impervious area runoff to already existing i3M.Ps; two are intrinsic to a
soccer (athletic) field. This field includes (incidental to design): i.) a vegetated filter strip (the far side of field -
image below), and, ii) grass swales at each end (behind soccer goals). The long far side of field is estimated to
receive, at a aatinitnum, runoff from one-third the total length of trail proposed to encircle the field. The total
estimated length of tirail around. the field is 0.2 Mi, so 352 LF( ±,) will reach filter strip of the athletic field itself_
(Since path width =6", 0.04848 Ac. is shown treated by Grass Channel A!8 Soils (Spec. #3). Engineering accepts
this concept, and practice as effective treatment for 0.04848 Ac. impervious area runoff. Next, runoff from the 6'
impervious width of the trail (identical area; one-third the length of proposed loop trail is sheetflow to vegetated
filter strip. No design revisions, calculation, or special maintenance are required to achieve runoff reduction as the
as -built condition of the athletic field, flat grades, and site visit confirm estimate of 0.04848 A.c, treated b s� heet
flow to vegretated filter strip (Spec. #2). Last, 185' x 6' wide portion of asphalt trail in front of the school adjacent
to parking areas draiins to a D1 and routes through. Ex. bioretention basin (Spec. #9). This basin was inspected by
Albemarle County Water Resources Program staff in 2017, and was in compliance. De mini.rms increase of peak., 1 -
year event, 1,110 sq. ft. (0.0255 Ac.) runoff thru biofilter adds approximately 0.34 cfs, and is rated insignificant,
Chapter 4 Graphical Peak Discharge Method
.... .... .. .....
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0 100 200 400 FM
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Custom Soil Resource Report
Soil Map
WITHIN PROJECT S17E:
34B
Glenelg loam, 2-7 percent slopes
34C
Glenelg loam, 7-15 percent slopes
34D
Glenelg loam, 15-25 percent slopes
39C
Hazel loam, 7-15 percent slopes
39D
Hazel loam, 1;5-25 percent slopes
56B
Meadowville I(oam, 2-7 percent slopes
Cnilc infnrmatinn
7�1W ,=; 7,93�O R6W
ADJACENT TO PROJECT SITE:
28C3 Elioak clay loam, 7-15 percent slopes, severely eroded
93D Watt channery silt loam, 15-25 percent slopes
93E Watt channery silt loam, 25-45 percent slopes
LAND PLANNING & DESIGN
A S S 0 C I A `I' E S
310 East Main Street, Suite 200
Charlottesville, Virginia ■ www.lpda.net
434 296 2108 ■ Fax 434 296 2109
I
Project Title
Baker Butler Tia'
Albemarle County,
Virginia
-�F WILLIAM R. MECHNICK
No. 000844
August 31, 2018
G
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No. Revision Date
Drawing Title
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L I
Project Number
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Project Number
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LAND PLANNING &DESIGN
A S S 0 C I A T E S
310 East Main Street, Suite 200
Charlottesville, Virginia a www.lpda.net
434 296 2108 E Fax 434 296 2109
J, %Project Title
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EX STING CONDITIONS INFORMATION IS BASED UPON ALBEMLLtNtY GIS DATA AND GPS FIELRDATA k
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D POSffiQN OF SITE IMPROVEMENTS SHALL BE VERIFIED BY THE
CONTRACTOR IN THE'MELD. G15 PROJECtIgN SYSTEM`S�S NAD83 VIRGINIA S06
Baker Butler Trail
Albemarle County,
Virginia
KLT
O WILLIAM R. MECHNICK
NO. 000844
August 31, 2018
�
G 4
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No. Revision Date
Drawing Title
Drawing Number
Project Number
Drawn
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scale
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Date AttgList 31, 2018
Issued
for
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Drawing Number
Project Number
Z'
Z
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N:3933043.2
E: 11505693.0
TRAIL GRADE AT APIP60 .469.6
LP
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LAND PLANNING &DESIGN
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310 East Main Street, Suite 200
Charlottesville, Virginia E www.lpda.net
EX. OBELISK
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Project Title
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Baker Butler Trail
END PATH AT CURB RADIUS BEGINNING
Albemarle County,
'x; —7'm
6-AIDE ASPHALT PATH, ALIGN WITH PATH
5
7S
ACROSS DRIVEWAY Virginia
1;A
CONNECT ASPHALT PATH TO EXISTING
. . ...........
SIDEWALK IN LEVEL AREA
•
N:3932693,5 N
r` ... 1 / / l `' — - ` `' o i' E:11506136.0
WILLIAM R. No. 000844
-Z MECHINj
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No. Revision Date
if
SOCCER FIELD f/ / Z' ---
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Issued for
CIRCUIT'
FOR SOCCER FIELD AND PARKING,For Bid
SEE SHEET L2
CONNECT NEW 0,
�A'RA��T
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115G59951
E:1,1506069.0
E
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ell
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EXISTING CONDITIONS INFbRMATION 1,S BASED UPON ALBEM NfY GIS DATA AND GPS FIELR'DATA
POINTS, ELEVATIOKSLOPE, AND POSIT OF SITE IMPROVEMENTS SHALL 4 VERIFIED BY THE
A El' \ � `'~
CONTRACTOR E 1�G' \
TRACTOR IN THE !_D. \ F I� PROJE&IQN SYSTEM8�\S NAD83 VIRGINIA SOUTH (FT US).
- .,. ,}y ` ,f% NOTE:
s•_ - BOULDER, TYP. PLACE-BETWEENPAVCM61T AND ,- ' 1. PROPOSED PARKING SPACES TO MATCH EXISTING GRADE AND NOT
h . _ TOP OF BANK-,DACE APPROX. 0 --'' -BARKING S ACLS 9' MIN. TO EXCEED 2% CROSS SLOPE AWAY FROM THE ROAD.
'"EDGE OF PAVEMEI '` f,: .- WIDTH/AT TRAVELWY '-
4 WHITE PAINT, STRIPE SHOULDE
\\. W Elk CONCRETE SWALE 2. STORMWATER RUNOFF FROM PROPOSED PERPENDICULAR AND
k - r' f STRIPE . KWG �o i OF DRIVEWAY TO 20 WIDTH
` TOP OF EX. BAUK- - ,��'q.'.
#\ PARALLEL PARKING SPACES MUST SHEET FLOW SOUTH/SOUTHWEST
� - �' � � RELATIVE REFERENCE ELEV.100�,- \_-_,__..�---.�-..-- �# � f ACROSS THE ASPHALT TOWARDS EXISTING CONCRETE SWALE AND
_ -REL. ELEV. 91.1 N:3.�-2637 7 � REL-EL . 93 6 <. `' - LAND PLANNING E I�
�� � �" � :. N:3932669.1
x:3932655.4 " f �- - W<u ^<< _1505292.9 { \-.\.. SHALL NOT BE CONCENTRATED OR COLLECTED BY ANY DEVICE A s s o I r� s
- - N�393262:0.= E 11505441.3
E:1 15051 3 `--.:��.,w���. "'� �- �- �' �� � �•��--"� -•--�------ �` f - # ` � OTHER THAN THE EXISTING CONCRETE SWALE. DO NOT PERFORM
- .__.. yE TAPER ASPHALT
PARKIN E:115k}53�0.4 / �� 310 East Main Street, Suite 200
DA
,. f ..
AREA TO ROAD AT / EX.NERATOR PAD ANY ADDITIONAL GRADING OR CREATE A NEW SWALE TO ROUTE
a Charlottesville, Virginia ■ wwwApda.net
_ 6 RUNOFF FROM THESE SPACES INTO THE EXISTING CONCRETE SWALE.
- (3) COMPACT / , L5 B RD 29 Fax 434 296 2109
N:3932644. / 434 6 2103
j W_. - - --- - -
jLA
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- µ 1 / �+ PROTECT EX. HYDRANT, EDGE OF PARKIN
L5 ASPHALT PAVING - ,� / �� ��,� �� �-
PARKING] TO BE 3 FROM FADE OF HYDRANT
22' 9" 5' REL. ELEV. 9 6..
Tf
D O� - - ' j FILL WITH TOPSOIL TO MATCH GRAQE AS NEEDED
a PROTECT EX. TREE
CONCRETE BUMPER STOPS, TYP..
M_
-_
k_
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/ _N ' % L5 \
- LET EXISTING CONCRETE SIDEWALK
w_
._w
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w_ _._.
ASPHALT PATH CONNECTS TO
f'`�
/f o �� _ L L5 EX. CONCRETE SIDEWALK ,/ EXISTING CONCRETE SIDEWALK
If
REL. EL€V. 94.9
f rf f
L5 ASPH LT TO CONNECT TRAIL TO,IE�STING SIDEWALK
% llf __w{ N:3932572.2
/ -�
11, 1505452.6
1 f # r s
r l l l I t r 1' 8' 8' WIDEIASPHAILT TRAIL
N:3932555.6 L AROUND SOCCER FIELD, 1140 LF
I ' r E:11505463.7
f s SCHOOL BUILDING
t i / f
if
l l f SOCCER. FIELD
� Project Title
rB 1 i
SOCCER FIELD f' ; Barer Butler Trail
f ' L ! j Albemarle Count
1s s f Q '
` ; r� r � � -- � Virginia
giilAa
N:3932464,8 l f f -
E:115066.3 ---J
;if LTH 0
( rr 1
{
WILLIAM R. MECHNICK
'`' ., \ Ir "`"w.,'�i (f �'r j ' � # � y`•t, ® ^rte
�' •• ," — — ''"~ -_ `-`.-.......,� t f � i ONWoO0084441��
u` _w
August 31, 2018 �
�9�D5CAPE ARCk�l��G
N:3932-446.2
No. Revision Do to
N:3932394.0
E:11505440.4 i 1.. N,3932410.5
E:11505208.6
L
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4 DRAIN PIPES UNDIER TRAIL \ \ � ` �� _ 1�:3932361.fi w
5 \ \ "..•,e \ E:1150't398,4
h I
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6' WIDE ASPHALT TRAIL L5 � `` ��_�._..- `�y,�-`. `� -�-- --- � �..� �� `` , �. v TAC y MEL
scale 1" = 20' Date `August 31 2018
moon—
t \ \ \ _ `' ` — /r '•. Issued for
For Bid
` \ \ yy \"\ ✓ _ _ ".., _ Drawing Title
:
Of \111
0 EXISTING U.TUfY MARKER AND BOX
DSS orb t --" ROUTE TRAIL SO TRAIL EDGE IS MIN 6' _ -
a �1 a , -`FROM UTILITY BOX
Soccer & Parking
Improvements Ilan
Drawing Number
w.w.w-w
L4
Scale: 1 �Otit t
f '^, Project Number
EXISTING CONQITIONS INFORMATION IS`BASED UPON ALMARLE COUNTY bIS DATA AND GPS FIELD DATA
POINTS. ELEVAflQN SLOPE, AND POSITI64,OF SITE IMPROVWENTS SHALL BE VkRIFIED BY THE
CONTRACTOR IN THE FIELD. GIS PROJECTIONSYSTEMS IS NAN,3 VIRGINIA SOUTR(FT US).
ASPHALT .APARKING
TYPICAL TRAIL PROFILE
1 2" SM 9.5 A ASPHALT
SURFACE COURSE
3" BM -25.0 ASPHALT
BASE COURSE
6" 21-A STONE BASE
COMPACTED SUBGRADE OR
UNDISTURBED SOIL
NOTE:
APPLICATION OF TACK AT JOINTS
ADGACENT TO CURBS SHALL BE APPLIED
BY HAND AT A RATE OF .2 GAL/SQ. YD.
REFER TO THE 'VIRGINIA DEPARTMENT OF
TRANSPORTATION ROAD AND BRIDGE
SPECIFICATIONS' FOR ASPHALT DENSITY
AND INSTALLATION PROCEEDURE:S.
REMOVE
ROCKS AND
STUMPS
++++ �-
�++--
NOT USED
KNOCK DOWN HIGH POINTS
_ EXISTING GRADE � � _
=�—------_—
nDAnr-
ZONE FLUSH TO SHOULDER GRADE
ASPHALT PARKING
co
2'- SEE PLANS 2' b
2"- 4" DROP
1; 1 5:1,.S:I
GRAVEL DIAPHRAGM
'++
+ + + +/
+ + + +
....
-++++++
+ + + +
-FILL IN LOW POINTS
TYPICAL TRAIL DEMOLITION / 8 \ ASPHALT TRAIL - TYPICAL TRAIL SECTION
Not to Scale
1►rlarel M c
i
WOR R' TRAIT WIF)TN
(y) —
N
4" DRAIN PIPES UNDER TRAIL
COMPACTED 21-A
EOTEXTILE FABRIC FOR SUBGRADE STABILIZATION
OMPACTED SUBGRADE
L SOIL
DIAMETER METAL BOLLARD
NISH GRADE
=T CONCRETE FOOTER 3"
=LOW FINISH GRADE AND COVER
'ITH SOIL TO ALLOW GRASS TO
ROW OVER FOOTER
)00 PSI CONCRETE FOOTER
OMPACTED SUBGRADE
2" SM 9.5 A ASPHALT
SURFACE COURSE
(3) 4" DIA. HDPE DRAIN PIPES
6" 21-A STONE BASE
GEOTEXTILE FABRIC
COMPACTED SUBGRADE OR
UNDISTURBED SOIL
2" SM 9.5 A ASPHALT
SURFACE COURSE
6" 21-A STONE BASE
GEOTEXTILE FABRIC
COMPACTED SUBGRADE OR
UNDISTURBED SOIL
LAND PLANNING & DESI+GN
A S S 0 C i .A `r E S
310 East Main Street, Suite 200
Charlottesville, Virginia ■ www.lpda.net
434 296 2108 0 Fax 434 296 2109
Project Title
Albemarle County,
Virginia
N
WILLIAM R. MECHNICK.
U �
No: 000844
August 31, 201 s
G
SCAPE
No. Revision Date
Drawn
by
TAC
Checked by MEL
(—CLEAN
WASHED #57'G L
= 20'
FILTER FABRIC
Issued
LINING AS SPECIFIED BY
ENGINEER TO PREVENT
SUBGRADE SATURATION
GRAVEL DIAPHRAGM
'++
+ + + +/
+ + + +
....
-++++++
+ + + +
-FILL IN LOW POINTS
TYPICAL TRAIL DEMOLITION / 8 \ ASPHALT TRAIL - TYPICAL TRAIL SECTION
Not to Scale
1►rlarel M c
i
WOR R' TRAIT WIF)TN
(y) —
N
4" DRAIN PIPES UNDER TRAIL
COMPACTED 21-A
EOTEXTILE FABRIC FOR SUBGRADE STABILIZATION
OMPACTED SUBGRADE
L SOIL
DIAMETER METAL BOLLARD
NISH GRADE
=T CONCRETE FOOTER 3"
=LOW FINISH GRADE AND COVER
'ITH SOIL TO ALLOW GRASS TO
ROW OVER FOOTER
)00 PSI CONCRETE FOOTER
OMPACTED SUBGRADE
2" SM 9.5 A ASPHALT
SURFACE COURSE
(3) 4" DIA. HDPE DRAIN PIPES
6" 21-A STONE BASE
GEOTEXTILE FABRIC
COMPACTED SUBGRADE OR
UNDISTURBED SOIL
2" SM 9.5 A ASPHALT
SURFACE COURSE
6" 21-A STONE BASE
GEOTEXTILE FABRIC
COMPACTED SUBGRADE OR
UNDISTURBED SOIL
LAND PLANNING & DESI+GN
A S S 0 C i .A `r E S
310 East Main Street, Suite 200
Charlottesville, Virginia ■ www.lpda.net
434 296 2108 0 Fax 434 296 2109
Project Title
Albemarle County,
Virginia
N
WILLIAM R. MECHNICK.
U �
No: 000844
August 31, 201 s
G
SCAPE
No. Revision Date
Drawn
by
TAC
Checked by MEL
Scale
V
= 20'
Date August 31, 2018
Issued
for
Drawing Title
i
Drawing Number
Project Number
Narrative to Accomoanv VaRRM .xls (VA Runoff Reduction Method Spreadsheet
Albemarle County Engineering Division staff (Anderson) visited site 4/27/18 with Project Manager (PMD staff) to
walk length of the proposed asphalt trail. This trail crosses stream buffer and passes through woods along Powell
Creek; there are also upland portions. There are no wetland, stream or stream buffer impacts associated with this
project, based upon design, grade, limited scope, and trail location. Stream buffer mitigation is not required.
Engineering Division accepts routing limited impervious area runoff to already existing BMPs-, two are intrinsic to a
soccer (athletic) field. This field includes (incidental to design): i.) a vegetated filter strip (the far side of field -
image below), and, ii) grass swales at each end (behind soccer goals). The long far side of field is estimated to
receive, at a inininaum, runoff from one-third the total length of trail proposed to encircle the field. The total
estimated length of trail around the field is 0.2 Mi, so 352 LF(±) will reach filter strip of the athletic field itself.
Since path width =6', 0.04848 Ac is shown treated by Grass Channel A/B Soils (Spec. #3). Engineiering accepts
this concept, and practice as effective treatment for 0.04848 Ac. impervious area runoff. Next, runoff from. the 6'
impervious width of the trail (identical area; one-third the length of proposed loop trail is sheetflow ito vegetated
filter strip. No design revisions, calculation, or special maintenance are required to achieve runoff reduction as the
as -built condition of the athletic field, flat grades, and site visit confirm estimate of 0.04848 Ac. treaeted b sheet
�heet
flow to vegetated filter strip(Spec. #2). Last, 185' X 6' wide portion of asphalt trail in front of the school adjacent
to parking areas drains to a Dl and routes through Ex. bioretention basin (Spec. #9). This basin was inspected by
Albemarle County Water Resources Program staff in 2017, and was in compliance. De minimis increase of peals, 1 -
year event, 1,110 sq.ft. (0.0255 Ac.) runoff thru bi.ofilter adds approximately 0.34 cfs, and is rated insignificant.
------------- - - -------------------------- - ----------------------_ ......- - - ..-
Chapter 4 Graphical Pei Discharge Method
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<{aWk
:; pproptr w' i:s.{iY -ilx sii t{#I .at<v.{:{ # 1 1i, tis r>E 1I1?. fA) *NWAW ANW
"'pi'.adtlfSsrI1,£k.IfsJf3,i)l:.>-s'wvrxb'Ek.<YFxt 301.
i'i 3Ms�,E{I§r3'FI. f3,'k {s3£ 4'xE3 Fjrs3( i£: {{3 al., tl)i3'sYtYs r,l 1£:'£l.. 3kit31 tski.... tfYi 3Ff ?£€k r Y
\ y
f _ 0.34 cls from TR -55)I SCS Method,
where Am =10,000 ft2 (0.23 Ac.; 0.000359 Mi'); Q =1" (if CN =70, Tc 0.1hr; 3.5" 1 -yr 24 -hr storm)}; Fp =1.0; qu
=950). Final Site Plan, Baker -Butler ES, d. 5111/01 (Timmons) approved 6/1/01 (SDP 01-009), sheet C2.3 indicates
following biofilter storage capacities (2-, 10-, 100 -yr): 25,265cf, 38,335cf, 45,310cf. Again, 0.34cfs from 185'
length of 6' paved trail routed through this facility is rated de minimis. Also, letter, C. Scott Browne, Timmons, to
Alb. Co., 1/3 1/0 1 (that ref. SWM Basin calculations including water quality worksheet and routing ,computations).
Data on File with CDD /Engineering, site visit 4/27/18, and photos are evaluated sufficient to support values entered
in VaRRM .xls (d. 4/27/18; rev. 5/3/18), prepared by J. Anderson, PE, CDD /Engineering (County of Albemarle).
VaRRM .xis (Version 3.0, together with TR -55) indicates after routing runoff from new impervious areas proposed
with this project through vegetated filter strip, grass swale, and biofilter, as outlined above, Remaining TP Load
Reduction Required is 0,1 "_� lb/yr.
DEQ Virginia Runoff Reduction Method Re -Development Compliance Spreadsheet - Version 3.0
Site Compliance Summary
-_----------_---_-______
I
1
__-________-_____
I
- - -
-
1 -year storm 2 -year storm 10 -year storm
-
BMP Design Specifications List: 12013
- --
Draft Stds & Specs
Maximum % Reduction Required Below
Pre-ReDevelopment Load
10%
Note. % Reduction wilt reduce post-developnnent l -P (oad to less than or equal to baseline food of 0.091b/yr (0.41 lblaclyr)
3.00 3.60 5.40
[Required reduction for Post-ReDev. = Post-ReGev, TP load- baseline load of 0.093685 1b/yr], baseline load = site area x 0.41 lbjoc/y r
Site Summary
A Solis
B Solis
- - - - - --
Drainage Areas
RV & CN Drainage Area A Drainage Area B
Total Runoff Volume Reduction {ft3]
152
Drainage Area E
Forest/Open (acres)
-
0.00
0.00
Total TP Load Reduction Achieved (lb/yr)
0.12
0
0
Project Title: Baker -Butler, NIFI_Parking-Trails
- -
- ----
j--
---
Total TN Load Reduction Achieved (lb/yr)
0.90I-
152 0
0
0
0
Date: 4/27/2018; rev. 5/3/18
Total Rainfall (in):
43
Practice
1 -year return perhod
Remaining Post Development TP Load
0.35
0.00
0.00
TP Removed
(Ib/yr)
RV w RR (ws-in) 2.57 0.00
Total Disturbed Acreage:
0.44
(Ib/yr)
CN adjusted 96 0
0
0
0
-
- -
- -
-
2 -year return period
10 -year return period
Remaining TP Load Reduction (lb/yr)
0417
0.00
0.00
- - -- -
0.03
0.02
RV w RR (ws-in) 3.16 0.00
Site Land Cover Summary
0.00
0.00
0.0484848
167.20
0.00
CN
CN adjusted 96 0
RV wo RR (ws-in) 5.16 0.00
0
0.00
0
0.00
Pre-ReDevelopment Land Cover (acres)
--
---------
'Reduction below new development ioud finait. ,tion not required
RV w RR (ws-in) 4.96 0.00
0.00
0.00
0.00
CN adjusted 1 96 0
0
A soils
a Soils
C Soils
D Soils
Totals
%
of Total
Total Turf Area Treated (acres)
0.00
Forest/Open (acres)
0.00
0.23
0,00
0.00
0.23
52
Total TN Load Reduction Achheved in D.A.
(lb/yr)
0.90
Managed Turf (acres)
0.00
0.21
0.00
0.00
07.21
48
impervious Cover (acres)
0.00
0.00
0.00
0.00
07.00
0
0).44
100
Post-ReDevelopment Land Cover (acres)
Asoils B Soils
C Soils
D Soils
Totals
% of Total
Forestlopen (acres)
0.00 0.23
0.00
0.00
03.23
52
Managed Turf (acres)
0.00 0.00
0.00
0.00
03.00
0
impervious Cover (acres)
0.00 0.21
1 0.00
0.00
03.21
48
* Forest/Open Space areas must be protected in accordance with the Virginia Runoff Reduction Method
0.44
100
Site Tv and Land Cover Nutrient Loads
Final Post -Development
post
Post
Adjusted Pre-
Pre -
ReDevelopment
Final Post -Development
Post-ReDevelopment TP
EME
(Post-ReDevelopment
ReDevelopment
Development
ReDevfelopment
TP Load per acre
TP Load per acre
Load per acre
New impervious)
{New Impervious)
(Ib/acre/yr)
(Ib/acre/yr)
(lb/acre/yr)
Site Rv
0.47
0.03
0.95
0.03
1 0.07
1,07
0.07
Treatment Volume (ft3)
741
25
716
25
TP Load (lb/yr)
0.47
0.02
0.45
07.02
- -
--- - - - - -
Baseline TP Load (Ib/yr):
0.093685*
*Reductlon be?ow new
I
I
deve!flpmc_nt load limitotion not
required
Total TP Load Reduction Required (Ib/yr)
0.29
-0.08
0.36
Final Post -Development Load ire
(Post-ReDevelopment & New Impervious) ReDevfelopment
- -- -- -
Load (lb/yr) 3.33 (0.79
Drainage Area Summary
Site Compliance Summary
-_----------_---_-______
I
1
__-________-_____
I
�
1 -year storm 2 -year storm 10 -year storm
- --
- -
Maximum % Reduction Required Below
Pre-ReDevelopment Load
10%
Note. % Reduction wilt reduce post-developnnent l -P (oad to less than or equal to baseline food of 0.091b/yr (0.41 lblaclyr)
3.00 3.60 5.40
[Required reduction for Post-ReDev. = Post-ReGev, TP load- baseline load of 0.093685 1b/yr], baseline load = site area x 0.41 lbjoc/y r
A Solis
B Solis
- - - - - --
Drainage Areas
RV & CN Drainage Area A Drainage Area B
Total Runoff Volume Reduction {ft3]
152
Drainage Area E
Forest/Open (acres)
-
0.00
0.00
Total TP Load Reduction Achieved (lb/yr)
0.12
0
0
0
- -
- ----
j--
---
Total TN Load Reduction Achieved (lb/yr)
0.90I-
152 0
0
0
0
Practice
1 -year return perhod
Remaining Post Development TP Load
0.35
0.00
0.00
TP Removed
(Ib/yr)
RV w RR (ws-in) 2.57 0.00
0.00
0.00
(Ib/yr)
CN adjusted 96 0
0
0
0
-
- -
- -
-
2 -year return period
10 -year return period
Remaining TP Load Reduction (lb/yr)
0417
0.00
0.00
- - -- -
0.03
0.02
RV w RR (ws-in) 3.16 0.00
Required
0.00
0.00
0.0484848
167.20
0.00
CN
CN adjusted 96 0
RV wo RR (ws-in) 5.16 0.00
0
0.00
0
0.00
I
--
---------
'Reduction below new development ioud finait. ,tion not required
RV w RR (ws-in) 4.96 0.00
0.00
0.00
Drainage Area Summary
LAND PLANNING & DESIGN
A S S 0 C I T E S
310 East Main Street, Suite 200
Charlottesville, Virginia ■ www.lpda.net
434 296 2108 0 Fax 434 296 2109
Project Title
Baler Butler Frail
Albemarle County,
Virginia
WILLIAM R. MECHNICK
O
No. 000844
August 31, 2018
G
%ZDSCAPE A06�
No. Revision Date
Drawn by TAC Checked by MEL
Soule Date August 31, 2018
Issued for
Drawing 1 itle
Drawing Number
L6
Project Number
Runoff Volume and {CN Calculations
-_----------_---_-______
I
1
__-________-_____
�
1 -year storm 2 -year storm 10 -year storm
- --
- -
Target Rainfall Event (in)
3.00 3.60 5.40
A Solis
B Solis
C Soils
Drainage Areas
RV & CN Drainage Area A Drainage Area B
Drainage Area C
Drainage Area D
Drainage Area E
Forest/Open (acres)
-
0.00
0.00
CN
98 0
0
0
0
- -
- ----
j--
---
--
RR (ft')
152 0
0
0
0
Practice
1 -year return perhod
RV wo RR (ws-in) 2.77 0.00
0.00
0.00
0.00
TP Removed
(Ib/yr)
RV w RR (ws-in) 2.57 0.00
0.00
0.00
0.00
CN adjusted 96 0
0
0
0
-
- -
- -
-
2 -year return period
10 -year return period
RV wo RR (ws-in) 3.37 0.00
0.00
0.00
0.00
- - -- -
0.03
0.02
RV w RR (ws-in) 3.16 0.00
0.00
0.00
0.00
0.0484848
167.20
0.00
CN
CN adjusted 96 0
RV wo RR (ws-in) 5.16 0.00
0
0.00
0
0.00
0
0.00
--
---------
RV w RR (ws-in) 4.96 0.00
0.00
0.00
0.00
CN adjusted 1 96 0
0
0
0
LAND PLANNING & DESIGN
A S S 0 C I T E S
310 East Main Street, Suite 200
Charlottesville, Virginia ■ www.lpda.net
434 296 2108 0 Fax 434 296 2109
Project Title
Baler Butler Frail
Albemarle County,
Virginia
WILLIAM R. MECHNICK
O
No. 000844
August 31, 2018
G
%ZDSCAPE A06�
No. Revision Date
Drawn by TAC Checked by MEL
Soule Date August 31, 2018
Issued for
Drawing 1 itle
Drawing Number
L6
Project Number
I
Drainage Area A Summary
I
Land Cover Summary
A Solis
B Solis
C Soils
D Solis
Total
% of Total
- - -- - --
Forest/Open (acres)
0.00
0.00
0.00
0.00
0.00
0
-
Managed Turf (acres)
impervious Cover (acres)
0.00 0.00 0.00
0,00 0.21 0.00
0.00
0.00
0.00
0.21
0.21
0
100
BMP Selections
Practice
Managed Turf
Credit Area
(acres)
Impervious Cover
Credit Area
(acres)
BMP Treatment
Volumeft3
{ )
TP Load from
Upstream
Practices (Ibs)
Untreated TP Load
to Practice (Ibs)
TP Removed
(Ib/yr)
TP Remaining
(lb/yr)
Downstream Treatment
to be Employed
4.a. Grass Channel A/B Soils (Spec #3)
0.0484848
167.20
0.00
0.10
0.03
0.07
_-
6.a. Bioretention #1 or Micro-Bioretentlon
#1 or Urban Bioretention (Spec #9)
0.02548
87.87
0.00
0.06
0.03
0.02
- -
9.c. Sheetf low to Vegetated Filter Strip, A
Soils or Compost Amended B/C/D Soils
(Spec #2 & #4)
0.0484848
167.20
0.00
0.10
0.05
0.05
_
Total Impervious Cover Treated (acres)
0.12
Total Turf Area Treated (acres)
0.00
II - ._ --_ -------- -
Total TP Load Reduction Achieved in D.A.
(lb/yr)
0.12
Total TN Load Reduction Achheved in D.A.
(lb/yr)
0.90
LAND PLANNING & DESIGN
A S S 0 C I T E S
310 East Main Street, Suite 200
Charlottesville, Virginia ■ www.lpda.net
434 296 2108 0 Fax 434 296 2109
Project Title
Baler Butler Frail
Albemarle County,
Virginia
WILLIAM R. MECHNICK
O
No. 000844
August 31, 2018
G
%ZDSCAPE A06�
No. Revision Date
Drawn by TAC Checked by MEL
Soule Date August 31, 2018
Issued for
Drawing 1 itle
Drawing Number
L6
Project Number
Project Name: FSiker-Burr )1€[Ff rkin -Tr
t pa alis
1y
Date:C2/2f12$,rev 5f1$
Linear Development Project? 1l 3
Information
Post -Development Project (Treatment Volume and Loads)
Enter Total Disturbed Area (acres) 4 U,44 Check,
BMP Design Specifications dist; 20113 Draft St& & Specs
---+' Unearproject? No
a a Lane( cover (areas entered correct=ly? �
Total disturbed area entered? f
Pre-ReDevellopment Land Cover (acres)
A Soils B Soils C Soils D Soils Totals
:Forest/C)pen Space (acres) -- undisturbed
forest/open space
1123
tManaged Turf (acres} -- distu,bed, graded for
;yards or outer tt!rf Fo 4e mowed/managed ..... _ ..
Impervious Cover (acres) I i j l f.
Land Cover lacrii
rryrrrr<aeaual} e v Ltuo.Ytel„utt
'Constants Runoff Cranffirierits lRul
:Annual Rainfall (inches)
A Sails
B Sails C Soils
D Soils
Totals
'ForestJOpert Space (aeras) -- undisturbed,
:Total Nitrogen (TN) EMC (ri
k.fi3
Target TP Load {Ib/acre/Yr)
O,Af :
protected forest/open space or reforested land
0 90
OZO
Ci,22
.'.'..0.25
:M raged Turf (acres) --disturbed, graded for
p 95
0 9S
i,9a
O,�S
or other turf to be mo Ned/managed
T323
_ __.
ftentaining
Runoff
'TotatBMP
'Treatment
tCi'yards
.Impervious Laver (acres)
(1#33 -'.l
=
i-
,'>etect!core drapduvmIi-
Dovmstmzi Practice to be
2.
Arca (saes) Pract{ce fli
"Lij
J!r,l
S
Y Forest
Ar Ch?ck
ULT <.
Cfia( tfK:
fiitt.
....
rryrrrr<aeaual} e v Ltuo.Ytel„utt
'Constants Runoff Cranffirierits lRul
:Annual Rainfall (inches)
q3
:Target Rainfall Event (inches)
1.OD
:Total Phosphorus (TP) EiL9C (mg/L)
Forest/Open Space
:Total Nitrogen (TN) EMC (ri
k.fi3
Target TP Load {Ib/acre/Yr)
O,Af :
Pj (unitless correction factor)
0 90
<:',r, r ye.. �. .r„•.,..•::cal.
•, 2f ,. r�f�... <rr ,
iifri0.41
A Soils
B Soils
C Sails
D Soils
Forest/Open Space
Q;02
k.fi3
4�,E2
O.GS
Managed Turf
O;iS
OZO
Ci,22
.'.'..0.25
Impervious Cover
p 95
0 9S
i,9a
O,�S
<:',r, r ye.. �. .r„•.,..•::cal.
•, 2f ,. r�f�... <rr ,
iifri0.41
TP Load Reduction
Required for ,
Redeveloped Area
flb/y r)
Nedvt;ion beloN new development fold
iiautation not mq.ired
TP Load Reduction Required (lb/yr)
Nitrogen Loads (informational Purposes Only)
Deveopment TN Lad
IF
17-1 post
Pre-fief7eveinpme{tt TN Load (Ib/yr) p,79 (Pest ReDevelopment & New Impervious) 3,33
(Ib/yr)
TP Load Reduction
Required for New X,
Impervious; Area (Ib/yr)
Drainage Area A
Drainage Area A tarW Co., raaesl
coo=
ASala 3 .Ih C5uils DSob T.L.N Land Cover Rv
O W 8013
z-
UAL, A4r< - io:ai PY,psph,x: A ' 1 41 h1r A1,11111+:r D.A. A lib/y,)� :3
Port D evelppmeot Treacment Vpiume In D.A.
Stormwater Hest Management Practices (RR = Runoff Reduction) '---
Runoif Ntanaged ImpPenpua VGortw frons R mg INAI BHt Phosphorus Phosphorus laid U t :ed Phosphosu Remain n6
Ru,wH CUpsRemoval from Upstream �hoephorus lo.d Removed By Phosphorus Load Downstream Pract{ce to be
Practice Red -i— Turf r^dit fiJver Credit oxvm R noR Vcium i m
creml `n' riieJv<linp Aj
(, j Aea {i ores) Area (aaej Practice Volumel�:') Effid"gI5, le--- ib tp Pracdce Ib' POW. ID Ib Empi°yeJ
.a. Panic k, 1--, al 11—til
3b Ee:ea•.ant g, j5pe. P)j
TOTAIIK•{'ERVIoUS LOVER TRkA[kU furl Gf3 AREA fNFf:K; O:t.
TOTALMANAGED TuRFAR£ATREATO){a<I {;,qi :: AREA CHEEK: OK.
TUTALR N0H REDUCTION
TOTALPHOStoORi15AVALLATTE?-OR REMOVALINUA AFb,'yfl- J4• ;(
TOTAL PNOSPHORi7S REMOVED WITfi RUNT FF RFDUCIiGP: PRACTICES 1N U
TOTAL PUDSPUORUS REH'AMING AT a APPi. IN r RUNOFF REDUCTION PRACTICES IN D
, y _
.tff V`14 Wef(M07rFTE. < t'fcn
. <f:,xtf-.At 1J,'f ..r7r .t7 f
PTP 1.°+Cf fF±.. ULA t,f1.S
TOTAL IMPERVIOUS CGYERTRFATED AREACUECK: OR.
TOTALh',AftAGEL IURFAi?EAtREAFED (acj f3Off AREA CHECK: 4 .
TOrA1 PLIU`I ORDS RFMOVAi lto{ILR2{J ON ?Ilk Sit•jy:) U')A _J
SRTisf PtfGSPHGRUSA+/AiiARi£F�k RPMO'JAI i{dD4 AfihJY.l '1.
TaiALY:t:)iVHf}Y.l)>RFP/IaYEf)X{IYNfilil%iUP:gFM1 RFfJUf fIpP PM(nrF>IN f)A.{ib/Y:) :: il,t,Xj .:l
TGFAL PHGSPfiGRUS R£PdOVEDN/tTtf 1UNOFF REDUCTION PRACnC£SING ,A(7b",)
TU?AL PNO51>HORUS LUAJ REUUr'[{rJN ACRIEYEO ;NL A Afib'Y`) C-2
TGTAt. PNCAPUtiRUS R£P,?A7NiNG AFTER APP3:IINi: 30.9P i0AORmLCfIONi:NBP AfltjYrf _ J -
EE it ;Ari:d q£iAL?rY CLik'Ffv.)A,"VU TAS rOR St TE CoitlPt?ANCE CII4LGFL4T'IONS
NI�R,],.r£N➢.TMflVrD Vl{TN RUPiuFFRCDUCT7CRi PRACT(Ct51{d DP At3h Yr) qp :
N[H2OGEN{sEh4OJEU. vYTIRUUT RUNarf HEUUCnUk PRAtI:CE51Ni AAt1f p'I - C.W
TOTAL NIFRin,FN RFPAOVFU iN D 9. A (ihfyrl : im!
Uoi N ogcn Remaining
Removal 4 om Upstream N t ogee F-' ip'. Removed e, Nitrogen Load
CHI 1 cY (%) P t {ib) P b ltbs) P i IIbsJ (Ip j
7�7nary ebt e
9�IIrPJIIN
t5 i5R U,rb? � 3MD2 nRp
is nv ss > uez cRs
TDTAI. kUNOFF REDUCTION IN D.A.
ft..T 9S}
NIFRLR:FN RFMOSFG WFTiF RUFfOFF RKDUC:MN PRACTICES fru D.A.AHvdrj�_; fzga
.a:tY,'fii>•k GU,sl!': +CLtr.?ufrGr;{k .khi Y'SE:Rtf'J,ATfC:;.::;frrfi, r.nc:.u;•iTrfyf
Drainage Area B
Drainage Area A Land Cower (acres} ...... ..... '
A Soi> R$ 15 j C�oAs G5°I{s Tcrtafs La ul CoY rRV
r sr, Qpepx ,se,1 - 1 fi 57tt OiYi
enT�rt'
a B c _sl
f} �
Q
Land Cover Summary -Post (Final)
lar7d Cover Summary -post
i land Cover Summary -post
Total Phosphorus Avadab)e for Removaim D.A.aOb/y)-{4f
Post Reflev. &New Impervious
` Post-ReDevelopment
Tptat
Punt -Development New
Impervious
ForestJOpe0 Space
i
forest/Opel; Space
'atOrmwater }jest Management Practices (FIR = Runoff Reduction)
Cover LES
t )
Cover (acres)
T323
_ __.
ftentaining
Runoff
'TotatBMP
'Treatment
Fhoz oral Ph°sph°rus
PH
Removal Load (mot
Weighted Rv(forest)
(1#33 -'.l
Weighted Rv(forest)
i-
,'>etect!core drapduvmIi-
Dovmstmzi Practice to be
Credit l a) plea (acres)
Arca (saes) Pract{ce fli
"Lij
% Forest.
S
Y Forest
Removed By
Phosphorus
Employed
Managed Turf Cover
g
-
Managed rUrf Cover
:
PraC[ices (Ib)
Eura Tice (IbTT
Pr cr i
w I b)
(acres)
.....r:: --r:
E (acres)
Weighted Rv (turf)
i10b
Weighted RV (turf}
_p, i0
%Mann ed Turf :
.. .....:
✓eneged Turf
'
imp.—mous CGJEf (ars)
:: :.
ReDev. Impervious
O74
New Ira ervio, Lqv r
'
t�,z2
Cover [acres)
(acres)
Rv(imaervlqus)L)05
{
...... ..............
Ru{impervious)
......
.:: ::
iJ$ _
Rv{fmpervtous)
trig;:
%Impervious
$
l Impervious
l3.te
Final Site Area (acres)
it.4<I
I Total ReDev. Site Area
(acres)'
Final Post Dev Site Rv
it,lx
ReDev Site Rv
ti13
Treakir €'ft VoluritB £inn Ni Atient L..•£i%3fTa
Fina'; Prt•DeueEopment
i! Post-ReDeueEogment
Post-DeveEapment
Treamilent Volume
0,027fi?
:' Treatment Volume
0{fz:Il)5
Treatment Volume
0 C31�q.
(acre-(;)
(acre -fie)
{acfe-ft)
Finae, posy-DevelGpDter•,Y
: Post -RE DevelopmeNt
Post -Development
Treatment Volume
Treatment Volume
s
!- Treatment Volume (cubic
?i.$
(cubic feed
(Cubic feet)
feet)
Post -
Final lost -mint
's: Post--ReDeaGEapmertk
r
Dewelo
Development iP Goad
Cft:.t
aI
Load(TP)
itA
:Post -Development TP Load
(Ib/•yr)
(IbJYr)
Fria, lost [)- I.P trent Tr
Y
load pef WE
.`).Tri f•rr r.: l::
{?'�3Ni
-
PJlax. Reduction Required
(Below Pfz-
i6°(o
Ftsueve ripmen: Lti
TP Load Reduction
Required for ,
Redeveloped Area
flb/y r)
Nedvt;ion beloN new development fold
iiautation not mq.ired
TP Load Reduction Required (lb/yr)
Nitrogen Loads (informational Purposes Only)
Deveopment TN Lad
IF
17-1 post
Pre-fief7eveinpme{tt TN Load (Ib/yr) p,79 (Pest ReDevelopment & New Impervious) 3,33
(Ib/yr)
TP Load Reduction
Required for New X,
Impervious; Area (Ib/yr)
Drainage Area A
Drainage Area A tarW Co., raaesl
coo=
ASala 3 .Ih C5uils DSob T.L.N Land Cover Rv
O W 8013
z-
UAL, A4r< - io:ai PY,psph,x: A ' 1 41 h1r A1,11111+:r D.A. A lib/y,)� :3
Port D evelppmeot Treacment Vpiume In D.A.
Stormwater Hest Management Practices (RR = Runoff Reduction) '---
Runoif Ntanaged ImpPenpua VGortw frons R mg INAI BHt Phosphorus Phosphorus laid U t :ed Phosphosu Remain n6
Ru,wH CUpsRemoval from Upstream �hoephorus lo.d Removed By Phosphorus Load Downstream Pract{ce to be
Practice Red -i— Turf r^dit fiJver Credit oxvm R noR Vcium i m
creml `n' riieJv<linp Aj
(, j Aea {i ores) Area (aaej Practice Volumel�:') Effid"gI5, le--- ib tp Pracdce Ib' POW. ID Ib Empi°yeJ
.a. Panic k, 1--, al 11—til
3b Ee:ea•.ant g, j5pe. P)j
TOTAIIK•{'ERVIoUS LOVER TRkA[kU furl Gf3 AREA fNFf:K; O:t.
TOTALMANAGED TuRFAR£ATREATO){a<I {;,qi :: AREA CHEEK: OK.
TUTALR N0H REDUCTION
TOTALPHOStoORi15AVALLATTE?-OR REMOVALINUA AFb,'yfl- J4• ;(
TOTAL PNOSPHORi7S REMOVED WITfi RUNT FF RFDUCIiGP: PRACTICES 1N U
TOTAL PUDSPUORUS REH'AMING AT a APPi. IN r RUNOFF REDUCTION PRACTICES IN D
, y _
.tff V`14 Wef(M07rFTE. < t'fcn
. <f:,xtf-.At 1J,'f ..r7r .t7 f
PTP 1.°+Cf fF±.. ULA t,f1.S
TOTAL IMPERVIOUS CGYERTRFATED AREACUECK: OR.
TOTALh',AftAGEL IURFAi?EAtREAFED (acj f3Off AREA CHECK: 4 .
TOrA1 PLIU`I ORDS RFMOVAi lto{ILR2{J ON ?Ilk Sit•jy:) U')A _J
SRTisf PtfGSPHGRUSA+/AiiARi£F�k RPMO'JAI i{dD4 AfihJY.l '1.
TaiALY:t:)iVHf}Y.l)>RFP/IaYEf)X{IYNfilil%iUP:gFM1 RFfJUf fIpP PM(nrF>IN f)A.{ib/Y:) :: il,t,Xj .:l
TGFAL PHGSPfiGRUS R£PdOVEDN/tTtf 1UNOFF REDUCTION PRACnC£SING ,A(7b",)
TU?AL PNO51>HORUS LUAJ REUUr'[{rJN ACRIEYEO ;NL A Afib'Y`) C-2
TGTAt. PNCAPUtiRUS R£P,?A7NiNG AFTER APP3:IINi: 30.9P i0AORmLCfIONi:NBP AfltjYrf _ J -
EE it ;Ari:d q£iAL?rY CLik'Ffv.)A,"VU TAS rOR St TE CoitlPt?ANCE CII4LGFL4T'IONS
NI�R,],.r£N➢.TMflVrD Vl{TN RUPiuFFRCDUCT7CRi PRACT(Ct51{d DP At3h Yr) qp :
N[H2OGEN{sEh4OJEU. vYTIRUUT RUNarf HEUUCnUk PRAtI:CE51Ni AAt1f p'I - C.W
TOTAL NIFRin,FN RFPAOVFU iN D 9. A (ihfyrl : im!
Uoi N ogcn Remaining
Removal 4 om Upstream N t ogee F-' ip'. Removed e, Nitrogen Load
CHI 1 cY (%) P t {ib) P b ltbs) P i IIbsJ (Ip j
7�7nary ebt e
9�IIrPJIIN
t5 i5R U,rb? � 3MD2 nRp
is nv ss > uez cRs
TDTAI. kUNOFF REDUCTION IN D.A.
ft..T 9S}
NIFRLR:FN RFMOSFG WFTiF RUFfOFF RKDUC:MN PRACTICES fru D.A.AHvdrj�_; fzga
.a:tY,'fii>•k GU,sl!': +CLtr.?ufrGr;{k .khi Y'SE:Rtf'J,ATfC:;.::;frrfi, r.nc:.u;•iTrfyf
Drainage Area B
Drainage Area A Land Cower (acres} ...... ..... '
A Soi> R$ 15 j C�oAs G5°I{s Tcrtafs La ul CoY rRV
r sr, Qpepx ,se,1 - 1 fi 57tt OiYi
enT�rt'
a B c _sl
f} �
Q
1 a. Trp=t t.rl R�vF pl I;rec Y'±
S.. SI:c�M;.v'pr;,,ervxt un Axz All 1.I
v.i: 5,•eNil, w,p Looser ✓af x A,en, CJD s: is
(Spec SEI
5r^e:r'rux• Ur V,•r,•:a4d 1A11 $..a A;Isp
TOTA i
L MPF.RVIOUS CD'YF.R FRF RFTDI ) ::- stn+ :: AREA iHEl.K: OK.
TOTAL TU RF AREA TRFATEO I ) : Ufjfy ARF-ACHECH: OK.
2'O%'AL RUNQPF REDUCTION lh U,A. 8 t.l')
TOTAL PHOSP PMUS AVARARUE FOR REMOVAL IFIDAI. 8tib/yy1 cj a0
TOTAT PHOSPHORUS REMOVEDWITH RUNOFF REUUCT:OPI PRACTIC=.5 IN lute IF Ii
TOTAL PHOSPHORUS REMAINING AFTER APPLYING RUN('aFF REDUCTION PRACTICES IN D.Ai Eiji jy{ a2D3
">£E WATER CFUANs%COfitprU?kCE TAI; FOR SIM C£tiv7Pci4 <r££ LCL;LA 1G?V
1.11 IETITRVIOUS COVER SREAYED( $ E3 £f0 AREALNECK:L7K,
'TOTAL MANAGED TURF AREATRE TEG E3, ft 53[, A'4EF. CHEEK. OK.
TOTAL PFKISPUORUS REPrfOVAL REQU7Rkrl ON STIFF.(Wyrj ::4 �9
TOTAL PifOSPHORUS AVAL.AR,E FOR, REMOVAL IN D.A. alibry) _O EA7
�I TOTAL PROSPHORUS RtMOVED VJI thou?' RUNOFF REDUCTION PRALi ICES IN D,A., I B((bry,)I W
TOTAL FHOSPNORUS REM -11 WITH RUNCrF REDUCTION PRACTICES IN D.A.18(ibjy )I :<B RfE
TOTAL PR6SPµORUS LOAD REOL1C',ION ACRIEVEI) IN b.A 18 ilhjY 1 LIAO
[UTAS PHUxf'NOFiVS REMAfNINss AF[Eft APPYYkhG HYP LEWDR'cDULTIONafN U.A, 8(ibry? fI.tY3
S£L- iSE%,A nw f,,Im1Fri' cfa?wpaAiYt:£ fn'E3 Fi S1 TE L-GJ`Z1PEi„ ,'UE (At CULAt ONS:
P 1TR ti
OVEN R£KhUkEv14 FIN RUr4O[F REDUCFiQN PRACTICES IN ETA. Ea {Ib
/rry I EI Od
NfTR06fN R£MOVED''NI-EHJUIfLUN06F RiUUCT1Uti PRACT{CE; WN A,1 LIT UW
TOTAL NETROGEN RI:P.I6VER IN D.A. R{I§ Pr$ ...EEG
it
Nn,ogen ryftYogentoad Untreated Nitrogen flemaining
Removal from Upst—I Nitrogen toad to Removed By Nitrogen
EiftciencY l"t7 P0—(Ii 0—(Ii Practicorbs) Fractice(1b5) Load Sibs)
.�aoE # t7,es :im
TOTAF Rt)N'OFF REDUCTION IN D,A. EF
NITROGEN Rr.MOYEO 4Yi7t(R27NDFF RLDUC7iON PRACTICES iN n,A. D I b Y r C.#ED
Sfc VFA?YR ERM rl'Y r±;fv1F';.tAb;C`f: rAu f Ort WE LA£G±;LA: FUNS iln”, rmnt,r:rr by;y)
Nitrogen NNro6 Load
i;LPDA
x.
LAND PLANNING & DESIGN
A S S 0 C I A T E S
310 East Main Street, Suite 200
Charlottesville, Virginia ® www.lpda.net
434 296 2108 ■ Fax 434 296 2109
Project Title
Albemarle County,
Virginia
1
WILLIAM R. MECHIVICK
No. 000844
August 31, 2018
{,_ * G,�l
�a'SCdPE
No. Revision Date
Drawn by 7AC Checked by MEL
Scale Dale August 31, 2018
Issued for
Drawing 1 itle
Drawing Number
Project Number
Total Phosphorus Avadab)e for Removaim D.A.aOb/y)-{4f
Off
Tptat
efp
Post Geveloprrsent feeatment Volume to D.A. B (rt )
a
'atOrmwater }jest Management Practices (FIR = Runoff Reduction)
__-
Runoff Managed I Imprrai6Hs Volume Flan
1 Practice Reduction Turf Credit Cover Credit Upstream
—
Fl
RunUE(
Reduction
_ __.
ftentaining
Runoff
'TotatBMP
'Treatment
Fhoz oral Ph°sph°rus
PH
Removal Load (mot
Untreated
Pflosphazus
I
Phmphorus
R¢maining
i-
,'>etect!core drapduvmIi-
Dovmstmzi Practice to be
Credit l a) plea (acres)
Arca (saes) Pract{ce fli
"Lij
Volume I.
WOUM, ift Efficien %F Upstream
( I
toad to
Removed By
Phosphorus
Employed
PraC[ices (Ib)
Eura Tice (IbTT
Pr cr i
w I b)
toed llbl
1 a. Trp=t t.rl R�vF pl I;rec Y'±
S.. SI:c�M;.v'pr;,,ervxt un Axz All 1.I
v.i: 5,•eNil, w,p Looser ✓af x A,en, CJD s: is
(Spec SEI
5r^e:r'rux• Ur V,•r,•:a4d 1A11 $..a A;Isp
TOTA i
L MPF.RVIOUS CD'YF.R FRF RFTDI ) ::- stn+ :: AREA iHEl.K: OK.
TOTAL TU RF AREA TRFATEO I ) : Ufjfy ARF-ACHECH: OK.
2'O%'AL RUNQPF REDUCTION lh U,A. 8 t.l')
TOTAL PHOSP PMUS AVARARUE FOR REMOVAL IFIDAI. 8tib/yy1 cj a0
TOTAT PHOSPHORUS REMOVEDWITH RUNOFF REUUCT:OPI PRACTIC=.5 IN lute IF Ii
TOTAL PHOSPHORUS REMAINING AFTER APPLYING RUN('aFF REDUCTION PRACTICES IN D.Ai Eiji jy{ a2D3
">£E WATER CFUANs%COfitprU?kCE TAI; FOR SIM C£tiv7Pci4 <r££ LCL;LA 1G?V
1.11 IETITRVIOUS COVER SREAYED( $ E3 £f0 AREALNECK:L7K,
'TOTAL MANAGED TURF AREATRE TEG E3, ft 53[, A'4EF. CHEEK. OK.
TOTAL PFKISPUORUS REPrfOVAL REQU7Rkrl ON STIFF.(Wyrj ::4 �9
TOTAL PifOSPHORUS AVAL.AR,E FOR, REMOVAL IN D.A. alibry) _O EA7
�I TOTAL PROSPHORUS RtMOVED VJI thou?' RUNOFF REDUCTION PRALi ICES IN D,A., I B((bry,)I W
TOTAL FHOSPNORUS REM -11 WITH RUNCrF REDUCTION PRACTICES IN D.A.18(ibjy )I :<B RfE
TOTAL PR6SPµORUS LOAD REOL1C',ION ACRIEVEI) IN b.A 18 ilhjY 1 LIAO
[UTAS PHUxf'NOFiVS REMAfNINss AF[Eft APPYYkhG HYP LEWDR'cDULTIONafN U.A, 8(ibry? fI.tY3
S£L- iSE%,A nw f,,Im1Fri' cfa?wpaAiYt:£ fn'E3 Fi S1 TE L-GJ`Z1PEi„ ,'UE (At CULAt ONS:
P 1TR ti
OVEN R£KhUkEv14 FIN RUr4O[F REDUCFiQN PRACTICES IN ETA. Ea {Ib
/rry I EI Od
NfTR06fN R£MOVED''NI-EHJUIfLUN06F RiUUCT1Uti PRACT{CE; WN A,1 LIT UW
TOTAL NETROGEN RI:P.I6VER IN D.A. R{I§ Pr$ ...EEG
it
Nn,ogen ryftYogentoad Untreated Nitrogen flemaining
Removal from Upst—I Nitrogen toad to Removed By Nitrogen
EiftciencY l"t7 P0—(Ii 0—(Ii Practicorbs) Fractice(1b5) Load Sibs)
.�aoE # t7,es :im
TOTAF Rt)N'OFF REDUCTION IN D,A. EF
NITROGEN Rr.MOYEO 4Yi7t(R27NDFF RLDUC7iON PRACTICES iN n,A. D I b Y r C.#ED
Sfc VFA?YR ERM rl'Y r±;fv1F';.tAb;C`f: rAu f Ort WE LA£G±;LA: FUNS iln”, rmnt,r:rr by;y)
Nitrogen NNro6 Load
i;LPDA
x.
LAND PLANNING & DESIGN
A S S 0 C I A T E S
310 East Main Street, Suite 200
Charlottesville, Virginia ® www.lpda.net
434 296 2108 ■ Fax 434 296 2109
Project Title
Albemarle County,
Virginia
1
WILLIAM R. MECHIVICK
No. 000844
August 31, 2018
{,_ * G,�l
�a'SCdPE
No. Revision Date
Drawn by 7AC Checked by MEL
Scale Dale August 31, 2018
Issued for
Drawing 1 itle
Drawing Number
Project Number
Site Results (Water Quality Compliance)
B Soils
C Soils
Area Checks
D.A. A D.A. B
D.A. C
D.A. D71
D.A. E
AREA CHECK
FOREST/OPEN SPACE (ac)
D
77s'
{1E74
C.QO
t.flti
OK.
IMPERVIOUS COVER
i
80'
C
3f3
OK.
IMPERVIOUS COMER TREATED (ac)
Q 1
l QQ
f1_j3Cl
u.ti)
Q[J
! OK.
MANAGED TURF AREAf}Q
777777
1l.QtI
#,fJO
Q.17Q
1j.Qfl
OK.
MANAGED TURF AREA TREATED (ac)
Q.Q#Q
Q Q(l
{L
Q pQ
Q_(3Q
OK.
AREA CHECK
OK.
OK.
OK.
LOK.
OK.
0.06
0.03
0.42
0
91 or Urban Bioretention (Spec #9)
Site Treatment Volume {ftp)
Runoff Reduction Volume and TP By Drainage Area
9,c, Sheetflow to Vegetated Filter Strip, A
RUNOFF REDUCTION VOLUME ACHIEVED (ft')15�
D.A. A
D.A. B
D.A. C
D.A. D
D.A. E
TOTAL
0.10
0.05
Q
Ci
Q
fi
�s2
TP LOAD AVAILABLE FOR REMOVAL (lb/yr)
Q (IQ
(i,£lR
Q Q(1::
{�,ti�l
L7 �
TP LOAD REDUCTION ACHIEVED (lb/yr)
(.
; 0 Qfl
{t.€
0 ((
0
p �
TP LOAD REMAINING (lb/yr)
CL.33
fI QO
fl.00,
D.DQ ;
{�.Ctl
0 3
NITROGEN LOAD REDUCTION ACHIEVED (Ib/yrj Q,Q
ii QQ77 .€)1i 13 Qq
f3_tHl
Q>
Total Phosphorus
FINAL POST -DEVELOPMENT TP LOAD (lb/yrj
{),c17
TP LOAD REDUCTION REQUIRED (lb/yr)
tt.Z
TP LOAD REDUCTION ACHIEVED (Ib/yr)
D2
TP LOAD REMAINING (lb/yr):Q
3
REMAINING TP LOAD REDUCTION REQUIRED (lb/yr): 0.17
Total Nitrogen (For Information Purposes)
POST -DEVELOPMENT LOAD (lb/yr)
3.33 .................:::
NITROGEN LOAD REDUCTION ACHIEVED (lb/yr)11
{} 9{j
REMAINING POST -DEVELOPMENT NITROGEN LOAD (lb/yr)
. 2l
NOTES:
ALBEMARLE COUNTY INTENDS TO PURCHASE 0.17 LBSNR. CREDITS FROM AN
ELIGIBLE NUTRIENT CREDIT BANK TO MEET WATER QUALITY STANDARDS.
THIS PROJECT MEETS CRITERIA AT 9VAC25-870-66.D.:
"IF ALL RUNOFF FROM THE SITE IS SHEET FLOW AND THE CONDITIONS OF THIS
SUBSECTION ARE MET, NO FURTHER WATER QUANTITY CONTROLS ARE REQUIRED."
nuliuii Vi1lull1C CIIIGC,I %.Ui VC IMt.AA1 MC1 L0ILMIGILOW11a
Enter design storm rainfall depths (in);
1 -year storm 2 -year storm 10 -year storm
Drainage Area Curve Numbers and Runoff Depths �
Curve numbers (CN, C"Nadl/ and runoff depths (RV orrPed/ acre computed with and without reduction practices.
Drainage Area A
Forest/Open Space -- undisturbed, protected Area (a
forest/open space or reforested land CN
Managed Turf -- disturbed, graded for yards or other turf Area (a
to be mowed/managed CN
impervious Cover Area (aCN
RVDeveloped (watershed -inch) with no Runoff Reduction*
RVoeveloped (watershed -inch) with Runoff Reduction'
Adjusted CNS`
see Notes above
A Soils
B Soils
C Soils
D Soils
77L}
0 Cb.......;
O.Ofl
€1.b(l.l
90
55
70
77s'
tlilfS
0_00b_00
30
€i.b0,.'
39
51
74
80'
Ob
b_il
17.bb....
f.CCt!:
98
98
98
9A
storm 2-vear storm
CN(D.A, A)
�s
storm
Drainage Area B
B Soils
A Soils
B Soils
C Soils
D Soils
Forest/Open Space -- undisturbed, protected
Area (acres)
.......
.........
db_
........... .............. .............................................
.......... ................11....1.....1..........
fl fi0
a 00 ::
tl<00
forest/open space or reforested land
CN
30
55
70
77
Managed Turf -- disturbed, graded for yards or other turf
Area (acres)
CiOLI
0 CC
C1.00
f.CCt!:
to be mowed/managed
CN
39
6Y
74
817
Method
Area (acres)
fl t7C
fk bi7
0 CYC .'
€3 00:
Impervious Cover
CN
98
98
4R
98 s
*See Notes above
Drainage Area C
Forest/Open Space -- undisturbed, protected Area (a
forest/open space or reforested land CN
Managed Turf-- disturbed, graded for yards or other turf Area (a
to be mowed/managed CN
Impervious Cover Area (a,
CN
RVDeveloped (watershed -inch) with no Runoff Reduction*
"Developed (watershed -inch) with Runoff Reduction*
Adjusted CN*
`See Notes above
Drainage Area D
Forest/Open Space -- undisturbed, protected Area (a
forest/open space or reforested land CN
Managed Turf -- disturbed, graded for yards or other turf Area (a,
to be mowed/managed CN
Impervious Cover Area (a
CN
A Soils
B Soils
C Soils
D Soils
%'Pt
bb
b.t3L1
L1.00
i}
5S
74
77
.00,
52
c3.oti
r3 L..
39
61
74
80
4$
impervious Cover (acres)
0.01
0.00
9$
98
9$
98
* forest/Open Space areas must be protected in accordance with the
Virginia Runoff Reduction
Method
CN(D.A. C)
0.44
0.44
200
Q.
fear Storm
2-vear storm
10-vear storm
167.20
A Soils B Soils C Soils D Soils
n00 C+:COb CC {3 C
1 year storm
"Developed (watershed -inch) with no Runoff Reduction' L}bb
"Developed (watershed -inch) with Runoff Reduction* 4.L1L1
Adjusted CN* i1
*See Notes above
Drainage Area E
A Soils
Forest/Open Space undisturbed, protected
forest/open space or reforested land
Area (acres)
F3011 (.
30
CN
Managed Turf -- disturbed, graded for yards or other turf
to be mowed/managed
Area (acres)
fl>L3L1
39
CN
Impervious Cover
Area (acres)
CN
t# i3tj
1 -year storm
RVDeveloped (watershed -inch) with no Runoff Reduction* i7;Ot7
RVDeveloped (watershed -inch) with Runoff Reduction* atY(1
Adjusted CN* ::.,..'
*:See Notes above
CN(D.A. D)
2-vear storm 10-vear storm
B Soils C Soils D Soils
L1 bf1 R,LdLi C 0C3;
CN(D,A. E)
0
storm 10 -year storm
BMP C3esiga Specifications List: 2013 Draft Stds & Specs._..__ �------.----- _.-- -. -
site summary
Project Title: Baker-ButBer, NiFi_Parkjng-1-rails
Date: 2/27/2018; rev. 5/3/18 Total Ralnfaill (in): 43
Total Disturbed Acreage; 0,44
Site Land Cover Summary
Pre-ReDevelopment Land Cover (acres)
Site Tv and Land Cover Nutrient Loads
A soils
B Soils
C 5oiis
b Spits
Totals
% of Total
Forest/open (acres)
0.00
0,23
O,CO
0.00
0,23
52
Managed Turf (acres)
0.00
0.21
0.00
0.00
0,21
4$
impervious Cover (acres)
0.00
0.00
0.00
0.00
0.00
0
* forest/Open Space areas must be protected in accordance with the
Virginia Runoff Reduction
Method
0,47
0.44
0.44
200
o.00
4.a. Grass Channel A/B Soils (Spec #3)
Post-ReDevelonment Land Cover (acres)
0,0493848
167.20
0.00
0,10
0.03
0.07
Site Tv and Land Cover Nutrient Loads
A soils
B Soils
C Soils
D Soils
Totals
% of Total
Forestlopen (acres)
0.00
0.23
O.CO
0.00
0,23
52
Managed Turf (acres)
0.00
0.00
O r0
040
0.00
0
impervious Coverjacres)
0.00
0.29,
0.£0
0.00
0.21
48
* forest/Open Space areas must be protected in accordance with the
Virginia Runoff Reduction
Method
0,47
0.44
100
Site Tv and Land Cover Nutrient Loads
prnent toad lirnitut-iun not required
Total TP Load Reduction Required jib/yr) 0.29 -0.08 0.36
Final Post -Development Load
Post-ReDevelopment & New impervious)
Pre-
ReDevelopment
TN Load (lb/yr)
3.33
0.79
Final Post-DevelopmentPost
(lb/acre/yr)
Post-
Ad'usted Pre
)
1.07
(Post-ReDevelopment
ReDevelopment
Development
ReDevelopment
(3,00
& New impervious)
0.00
jluev, Impervious)
0,00
Site Rv
0.47
0.C3
0.95
0.03
Treatment Volume (ft)
7`I1
25
716
25
TP Load (lb/yr)
0,47
0.02
10.45
0.02 1
prnent toad lirnitut-iun not required
Total TP Load Reduction Required jib/yr) 0.29 -0.08 0.36
LAND PLANNING & DESIGN
A S S 0 C I A T E S
310 Cast Main Street, Suite 200
Charlottesville, Virginia ■ www.lpda.net
434 296 2108 ■ Fax 434 296 2109
Pre-
ReDevelopment
Final Post -Development Load
Post-ReDevelopment & New impervious)
Pre-
ReDevelopment
TN Load (lb/yr)
3.33
0.79
LAND PLANNING & DESIGN
A S S 0 C I A T E S
310 Cast Main Street, Suite 200
Charlottesville, Virginia ■ www.lpda.net
434 296 2108 ■ Fax 434 296 2109
Pre-
ReDevelopment
Final Post -Development
Post-ReDevelopment TP
TP Lead per acre
TP Load per acre
Load per acre
(lb/acre/yr)
(lb/acre/yr)
(lb/acre/yr)
0.07
1.07
0,07
-----------------------------------------------------------------------------------------------------------------------------------------------
Site Compliance Summary
Maximum %Reduction Required Below 10% " Note: 96 Reduction will reduce post -development TP food w less than, or equal to boselinre load of O,09- Ibfyr fo.41 iblaclyr)
pre-ReDevelopment Load [Required reductiars far Post-ReDev. = Post-ReDev TPload - basefine land of 0,093635lblyr) baseline load = site aieu x03.41 lblacJyr
Total Runoff Volume Reduction (ft;)
1.52
Total TP Load Reduction Achieved (Ib/yr)
0-12
Total TN Load Reduction Achieved (Iblyr)
0.90
Remaining Post development TP Load
0.35
(lb/yr)
0.00
Remaining TP Load Reduction (lb/yr)
0.1.7
Required
0.00
'"F$F'dLiCiid?7 beh"w new fief e op"n m R?f d im. oti tWri not rYfS ;; r?i7
-----------------------------------------------------------------------------------------------------------------------------------------------
Drainage Area Summary
Drainage Area Compliance Summary
.. .
Q,A. A
D.A. B
D.A. C
D.A. D
D.A. £
Total
forest/Open (acres)
0.00
0.00
0.00
0.00
0.00
0.00
Managed Turf (acres)
(3,00
0.00
0.00
0.00
0,00
0.00
impervious Cover jacres)
0.21
0,00
0,013
0.00
0.00
0,27.
Total Area (acres)
0.21
0.00
4.00
0.00
0.00
011
Drainage Area Compliance Summary
.. .
D.A. A
D.A. B
D.A. C
D,A, D
D.A. E
Total
TP Load Reduced (Ib/yr)
0,12
0,00
0,00
0.00
0.00
0.12
1
TN load Reduced (lb/yr)
0.90
0.00
0.00
0,00
0,00
0.50
Drainage Area A Summary
Land Cover Summary
BMP Selections
A Soils
B Soils
C Soils
D Soils
Total
°o of Total
Forest/open (acres)
0.00
0.00
0.00
0.00
0.00
0
Managed Turf (acres)
0.00
4.00
0,00
0,00
0.00
0
Impervious Cover (acres)
0.00
0.21
0.00
0.00
0.2.1
100
BMP Selections
Total impervious Cover Treated (acres)
Managed Turf
Impervious Cover
0.00
TP Laud from
0.9.2
(Ib/yr)
CN
Total TN Load Reduction Achieved in D,A.
0.90
lib/yr)
0
BMP Treatment
0
Untreated TP load
TP Removed
TP Remaining
;downstream Treatment
Practice
Credit Area
Credit Area
Volume (ft)
upstream
to Practice (lbs)
(Ib/yr)
(ib/yr)
to be Employed
0,00
(acres)
(acres)
Cit adjusted 96 0 0 0
Practices (lbs)
2 -year return period
RV wo RR (ws-in)
3.37
o.00
4.a. Grass Channel A/B Soils (Spec #3)
0.00
0,0493848
167.20
0.00
0,10
0.03
0.07
Rv wo RR (ws-in)
6.a. Bioretention #1 or Micro-Bioretention
(Ho
0,02548
87.87
0.00
0.06
0.03
0.42
0
91 or Urban Bioretention (Spec #9)
9,c, Sheetflow to Vegetated Filter Strip, A
Soils or Compost Amended B/C/D Soils
0.0484848
167.20
0.00
0.10
0.05
0.05
(spec #2 & #4)
Total impervious Cover Treated (acres)
0.12
Total Turf Area Treated (acres)
0.00
Total TP Load Reduction Achieved in D.A.
0.9.2
(Ib/yr)
CN
Total TN Load Reduction Achieved in D,A.
0.90
lib/yr)
0
Project Title
Baker Butler Frail
Albemarle County,
Virginia
® WILLIAM R. MECHIJICK
� "ea
No. 000844
August 31, 2018
CAPE
No. Revision Date
Drawn by TAC Checked by MEL
Scale Date August 31, 2018
Issued for
---------------------------------------------------------------------------------------------------------------------------------------------- For Bid
Runoff Volume and CN Calculations
1 -year storm 2 -year storm 10 -Year storm
Target Rainfall Event (in) 13.00 1 160 1 5.40
Drawing Title
Drainage Areas
RV & CN
Drainage Area A
drainage Area 8
Drainage Area C
Drainage Area D
Drainage Area E
CN
......................................
.....................................
98
077,777777777
0
0
0
RR (ft)
152
0
0
0
0
1 -year return period
RV wo RR (ws-in)
2.77
0.00
0.00
0.00
0,00
RV w RR (Ws -in) 2,57 o,Co t7.t30 €7.00
0.00
Cit adjusted 96 0 0 0
0
2 -year return period
RV wo RR (ws-in)
3.37
o.00
0.00
0.00
0.00
Rv w RR (ws-in) 3.1.6 0.10 0.00 0.017
0.00
CN adjusted 96 O 0 0
0
10 -year return period
Rv wo RR (ws-in)
5.16
(Ho
0.00
0.00
0.00
Rv w RR (w5 -in) 4.96 0.00 0.00 0.00
0.00
CN adjusted 96 0 0 0
0
Drawing Number
L8
Project Number