HomeMy WebLinkAboutWPO201200049 Plan - Stormwater 2013-12-13--now,
THE MILLER SCH!,*_.)OL NEW ENTRANC- E
ROAD /STREA.M'- BUFFER MITIGATION SOIL EROSION & SEDIMENT CONTROL SITE PLAN
TMP 72-32, SAMUEL MILLER DISTRICT, ALBEMARLE COUNTY, VIRGINIA
SHEET INDEX
SHEET 1.0 - COVER Ap
SHEET 2.0 -ENTRANCE IMPROVEMENTS & SIGHT DISTANCES PLAN
SHEET 2.1 ROAD PLAN (STATION 10+71.91 TO 17+51.61)
-
SHEET 2.2 ROAD PLAN (STATION 17+51.91 TO 38+29,76)
SHEET 3.0 - ROAD PROFILE (STATION 10+00 TO 18+50)
SHEET 3.1 - ROAD PROFILE (STATION 18+50 TO 27+50)
SHEET 3.2 - ROAD PROFILE (STATION 27+50 TO 38+29.76)
SHEET 3.3 - CONNECTOR ROADS - PROFILES
SHEET 4.0 - CULVERT PROFILES
SHEET 4.1 - CULVERT PROFILES
SHEET 5.0 - CRITICAL SLOPES PLAN
SHEET 6.0 - STREAM BUFFER DISTURBANCE PLAN, -`-
SHEET 6.1 - MITIGATION PLAN
SHEET 7.0 -EROSION & SEDIMENT CONTROL PLAN (STATION a 0+00 TO 17+51.91) \
SHEET 7.1 EROSION & SEDIMENT CONTROL PLAN (STATION 17+51.91 TO 38+29.76) ' _--
SHEET 7.2 -EROSION & SEDIMENT CONTROL NOTES & DETAILS _
SHEET 7.3 - EROSION & SEDIMENT CONTROL DETAILS
SHEET 7.4 - EROSION & SEDIMENT CONTROL NARRATIVE
SHEET 8.0 _ DRAINAGE AREA MAP - CULVERTS
SHEET 8.1 DRAINAGE AREA MAP - SEDIMENT TRAPS
SHEET 9.0 - IMPERVIOUS AREAS
SHEET 9.1 - STORMWATER MANAGEMENT PLAN
SHEET 9.2 - STORMWATER MANAGEMENT DETAILS
SHEET 10.0 - ROADWAY LIGHTING
PROJECT/SITE DATA
Name of Development: The Miller School - New Entrance
Name of Owner: The Miller School of Albemarle
Tax Map/Parcel Number: TMP 72-32
Zoning: Rural Areas, RA
Waivers requested: stream buffer, critical slopes, curb and gut - r,
Magisterial District: Samuel Miller
County/State: Albemarle County, Virginia
Source of Topography: County GISand field run
Source of Survey: Roger W. Ray & Associates, Inc.
The site is located within a reservoir watershed
Traffic information (from school letter dated April 6, 2012)
Weekdays - 136 vtpd
Weekends - 50 vtpd
LEGEND
Ex. - Existing
T.B.R. - To Be Removed
dbl. - double
VICINITY MAP
Miller School Property Line
Approx. 0.70 miles
to the school's
north entrance
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MITIGATION AREA - SEE SHEET C6.1
/ Mechurns River----",
Miller School Road 7\-Existing
State Rt. 635 North Entrance /
PROPOSED Ni / I
LOOP ROAD /
�-� HEADMASTER'S j \\
\\ HOUSE .\\
Dick Woods Road
< /
CATON HALL
• i,r t` i } � iWL�
t q �i� .>it ,I
# -------WbUL._-.-_-._.
ti s / , *0M WiI �►D,�i7t�yt P�Gif�1
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DATE
Nov. 18, 2009
REVISIONS
a
Jan. 11, 2010
July 7, 2010
February 6, 2012
April 30, 2012
November 30, 2012
January 9, 2013
January23, 2013
April 15.2013
May 30, 2013
June 10, 2013
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BRI P. sM(fFi
CERTIFICATE No.
.0 14591
ANAL ��
BRIAN P. SMITH, PE
CIVIL ENGINEERING, INC,
Q0U =MCA
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
DWG. NAME
Miller School 2.pro
SHEET
C1 so
DATE
February b, 2012
STA 10+71.91
MATCHLINE - SEE SHEET C2,1
NEW STOP/STREET SIGN
J- �/�' / / Two e ing str ms convergingNEW JUNCTION BOX
W
(SEE DETAIL BELOW) / , / 4 001- Ex. 15" hickory
/ 10
EXTEND EXISTING BOX CULVERT ' �' / // / - _ - - - - - - Z
2 !O-A-SLOPE- - - \
Ex. 48 "x 48" concrete box cu lverf£-
inv in=601.73 /('l\�j :'R:: - - - - - - -
inv out=599.7 - -620
Ex. 15' poplar ���' 14. .`�; - -- --- -"-----------
Ex. 21" poplar -
TO BE CUT �> 1 00. h (: .;... - _ - - -
�j i/ `6� 1 1 I /-- - - - - - - -_ - Ex. 30' Prescriptive easement
6 0 Ex. 18'
/ Esc -sign / % ~ �. �� �/> ` --dW . poplr _
G
390 LF OF SIGHT DISTANCE REQUIRED G SHOWN
TRAFFIC STUDY PERFORMED - 85% OF TRAFFIC
TRAVELS 30 MPH OR LESS, SPEED LIMIT 35 MPH
Ex. 15" dbl. poplar
TO BE CUT / L -61 �/ - �- _ _ =-cv States qo0�
PROPOSED SIGHT EASEMENT � _ - - - 1 �� �/e 635
/Mille,
ALL TREES WITHIN THIS AREA TO BE CUT 6" ABOVE GROUND. / NEW ENTRAN E �° ( 40=
STUMPS TO REMAIN. ALL VEGETATION TO BE CUT AND / �� '� ' Ex. 12" dbl. poplar
MAINTAINED NO HIGHER THAN THE EDGE OF PAVEMENT. Ex. 18" dbl. oplar/ �i� Ex. 15" poplar P P /r / \
LIMBS HANGING OVER THE SIGHT DISTANCE: SHALL BE CUT. TO BE CUT // / /� // Ex. 12" poplar - - - - - - - - - = ""
ONLY SIGNIFICANT TREES ARE SHOWN. SOME MAY REMAIN / �` ` _ / / / Ex. 24" beech NEW 100' TAPER
AT THE DISCRETION OF VDOT. Ex. 18" poplar - - - - - - - -- - - - - _ _ - =--- �- � - r -
SEE TYPICAL ROAD _ _ _ _ _ _ _ _ _ _ _
Ex. 12" poplars (2) SECTION ON C2.1 - - - - - - - - - - - - - - -
Ex. 12" hickory
ALL 3 TO BE CUT Ex. 15" maple
Ex. 12" maple
Z
Ex. 15" ma le
TO BE CUT
Ex. 15"
r
TO BE CUT / / 0
Ex. 12" paulownia
TO BE CUT
Ex. 9" walnut
TO BE CUT
Ex. paved shoulder
I I
Ex. I8" concrete I
inv in=590.56 pipe
inv out=587.48 i I II II IIIii �� 4/' '
0
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/% � '�---Ex. 21" maple
Ex. 12" h ickorys (2)
Ex. 12" dbl. maple
Ex. 12" dbl. poplar
Ex. 21" ma le
TO BE CUT
Ex. 18" quad beech
--" Ex. 18" white oak
Ex. 15" maple
Ex. 18" sycamore
Ex. 15" white oak
Ex. 18" ma le snag
TO BE CUT
Ex. 15" red oak
\\\\1\\ 1111 \ Ex. 12" poplar
21 . Ex" pop
lar
.- /I
47111, //o I I I I
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End of field run survey
Ex. 24 / \ \
sycamore
LINE OF SIGHT
NEW GR-9 - 659-
END SECTION - - -
NEW GR-2
STA 10+40.43 GUARDRAIL End of field run survey
NEW 48" x 48" RCP BOX CULVERT SIGHT
WITH HEADWALL
NEW GR-9
END SECTION
NEW JUNCTION BOX
Scale: 1'=1/4"
•=
96"
I-
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i' _
4 I .
98 '24'01"
II II
11 � II
II II
PLAN VIEW
48" BOX CULVERT --*--
602.00
601.33
NEW DI-7
TYPE IB GRATE
TOP ELEV=613.50
NEW PRE -CAST
REINFORCED CONCRETE
STRUCTURE
- 613.50
- 612.92
- 611.92
NEW PRE -CAST
REINFORCED CONCRETE
STRUCTURE
- 608.04
4- 48" BUX CULVEH I
600.67
- 600.00
NEW FOOTER PROFILE VIEW ` --NEW STONE BASE
The final design of this structure, including exact dimensions,
shall be prepared by the pre -cast manufacturer. It shall be
designed and installed in accordance to VDOT specifications.
TRAFFIC SIGNS:
STOP SIGNS (7):
18" x 18" RI-1
12'-15' FROM EP OF INTERSECTING ROAD
4' FROM EDGE OF PAVEMENT
POSTS (7):
2" x 2" x 9' -14 GA. SQUARE GALV.
QUICK PUNCH BREAK -AWAY POST
IN LARGE SLEEVE SUPPORTED IN CONCRETE
7/16" HOLES; NO HOLES 18" ABOVE SUPPORT
STREET SIGN (1):
MILLER SCHOOL
ALBEMARLE COUNTY FINAL PLAN GENERAL NOTES
General Construction Notes
1. Prior to any construction within any existing public right-of-way, including connection to
any existing road, a permit shall be obtained from the Virginia Department of Transportation
(VOOT). This plan as drawn may not accurately reflect the requirements of the permit. Where any
discrepancies occur the requirements of the permit shall govern.
2. All materials and construction methods shall conform to current specifications and standards
of VDOT unless otherwise noted,
3. Erosion and siltation control measures shall be provided in accordance with the approved
erosion (control plan and shall be installed prior to any clearing, grading or other construction.
4. All slopes and disturbed areas are to be fertilized, seeded and mulched.
5. The maximum allowable slope is 2:1 (horizontal:vertical). Where reasonably obtainable,
lesser slopes of 3:1 or better are to be achieved.
6. Paved, r.ip-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).
General Construction Notes for Streets (This list is in addition to the General Construction Notes)
I. All materials and construction must be tested and documented according to VDOT standards
and specifications.
2. Surface drainage and pipe discharge must be retained within the public right-of-way or
within easements prior to acceptance. All drainage outfall easements are to be extended to a
boundary line or a natural watercourse.
3. Guardrail locations are approximate. Exact length, location and appropriate end treatments
will be field verified at the time of construction. Additional guardrail may be required at
locations not shown when, in the opinion of VDOT (for public roads) or the County Engineer (for
private roads), or designee, it is deemed necessary. When guardrail is required, it shall be
installed four (4) feet offset from the edge of pavement to the face of guardrail, and roadway
shoulder widths shall be increased to seven (7) feet.
4. Where urban cross sections are installed, all residential driveway entrances shall conform
to VDOT CG-9 (A, B or C) .
5. Where rural cross sections are installed, all residential driveway entrances shall conform
to VDOT standard PE-i.
6. Compliance with the minimum pavement width, shoulder width and ditch sections, as
shown on the typical pavement section detail, shall be strictly adhered to.
7. Road plan approval for subdivisions is subject to final subdivision plat validation. Should
the final plat for this project expire prior to signing and recordation, then approval of these
plans shall be null and void.
8. All signs or other regulatory devices shall conform with the Virginia Manual for Uniform
Traffic Control Devices and the Albemarle County Road Naming and Property Numbering
Ordinance and Manual.
9. Traffic control or other regulatory signs or barricades shall be installed by the developer
when, in the opinion of the County Engineer, or designee, they are deemed necessary in
order to provide safe and convenient access.
10. The speed limits to be posted on speed limit signs are 5 mph below the design speed, or as
determined by VDOT for public roads.
i1. VDOT standard CD-1 or CD-2 cross -drains are to be installed under the subbase material
at all cut and fill transitions and grade sag points as shown on the road profiles.
12. A video camera inspection is required for all storm sewers and culverts that are deemed
inaccessible to VDOT or County inspections. The video inspection shall be conducted in
accordance with VDOT's video camera inspection procedure.
REVISIONS
April 30, 2012
November 30, 2012
January 9, 2013
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BRIAN P. SMITH
CERTIFICATE No.
.00 14591 w�
101YAL �,ZyCs1
BRIAN P. SMITH, PE
CIVIL ENGINEERING, INC.
�WE MOR ° Lao ° " EM
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
09-011-00
DWG. NAME
Miller School 2.pro
SHEET
C2v0
County of Albemarle
Conservation Plan Checklist - To be placed on Landscape Plans
(Handbook, pp HI-284-111-297 for complete specifications)
1. The following items shall be shown on the plan:
Trees to be saved;
® Limits of clearing (outside dripline of trees to be saved);
® Location and type of protective fencing;
® Grade changes requiring tree wells or walls;
® Proposed trenching or tunneling beyond the limits of clearing.
2. Markings:
® All trees tube saved shall be marked with print or ribbon at a height clearly visible to equipment operators.
® No grading shall begin until the tree marking has been inspected and approved by a County Inspector.
3. Pre -Construe ion Conference:
® Tree preservation and protection measums shall be reviewed with the contractor on site.
4. Equipment Operation and Storage:
® Heavy equipment, vehicular traffic and storage of construction materials including soil shall not be permitted within the driplines of trees
to be saved.
5. Soil Erosion and Stormwater Detention Devices:
® Such devices shall not adversely affect trees to be saved.
5. Fires:
® Fires are not permitted within 100 feet of the dripline of trees to be saved.
7. "folic Materials:
® Toxic materials shall not be stored within 100 feet of the dripline of trecs to be saved.
& Protective Fencing:
Trees to be retained within 40 feet of a proposed building or grading activity shall be protected by fencing.
® Fencing shall be in place and shall be inspected and approved by a County Inspector prior to grading or construction.
9. Tree Wells:
® When the ground level must be raised within the dripline of a tree to be saved, a tree well shall be provided and a construction detail
submitted for approval.
10. Tree Walls:
® When the ground level must be lowered within the dripline a tree to be saved, a tree wall shall be provided; and a construction detail
submitted for approval.
It. Trew Alue aad Tunneling:
® When trenching is required within the limits of clearing, it shall be done as faraway from the trunks of trees as possible. Tunneling
under a large tree shall be considered as an alternative when it is anticipated that necessary trenching will destroy feeder roots.
12. Cleanup!
® Protective fencing shall be the last items removed during the furl cleanup.
13. Damaged Trees:
® Damaged trees shall be treated immediately by pruning, fertilization or other methods recommended by a tree specialist.
NOTE: IT IS THE DEVELOPER'S RESPONSIBILITY TO CONFER WITH THE CONTRACTOR ON TREE CONSERVATION
REQUIREMENTS.
NEW GR-9
END SECTION
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STA 16+95
NEW 15" HDPE STORM PIPE
67.69 LF @ 15.51%
INCLUDING END SECTIONS
INV IN=655.50
INV OUT=645.00
OUTLET PROTECTION
(SEE DETAILS G TABLE)
W E
S
Ex. 4" plastic pipe
inv. out=660.5
CONNECT TO NEW DITCH
USE EC-2, LINING
Ex. silt fence` j
T.M.
72-32
T.B.R. /
THE MILLER SCHOOL
OF ALBEMAIRLE
D.B.
68-754
D.B. 45-504
DESC .
CHANGE GRADING ON CUT
D.B. 24-66
DESC .
SLOPE FROM 1.5/ 1 TO 2/ 1.
Old roadbed—\
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CONTRACTOR TO CONSTRUCT A
PERMANENT DIVERSION DITCH �o° ....."..'.''.'.'.'
ABOVE THE 1,5 TO i SLOPES. / / / / / / / / . �....... ....... /
Ex. baseball field i / �/ // /� // ••�- ������� 6h° / ��
::::::.... /
.......'.'.'.'.'
/ / �/ // / / i /::..
FROM STA 10+90 TO STA 16+70 1.5 TO 1 SLOPE
USE EC-3, TYPE A LINING /
Old roadbed i i /�/
GRADING ON CUT / / / / / / / .. / /// /
ROM 2/1 TO 1.5/1. _ — j /' / / / i . �...'_.::.:y. // /
TO i/SLOPE/
/........ 4j..../
o5q'bA ��;/ ���� //, ° /:`'.. :.:::: / // // / // // III I/1Qp
................
/ / / Ex. woods
12" hickory.':::
...............
A.
. ..........
.....
/ Well established area of ground cover, understory
G canopy trees on both side of the stream
\
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�..�-��
Cu
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CUT SLOPE VARI
LININGS VARIES
REFER TO PLANS
3 TO 1 SLOPE
MAXIMUM
ROAD WIDTH
VARIES FRON
20' TO 24'
1' PER FT. '— 8' #21A
SLOPE BASESTONE
2' SM-9.5A SUPERPAVE
SLOPE 114' PER FT.
SHLDR* * 7' WITH GR
F4.00'-�
2 TO 1 SLOPE
MAXIMUM
UNLESS NOTED
DIFFERENTLY
COMPACTED SUBGRADE
C.B.R. FIELD TESTS OF
10 OR BETTER
TYPICAL ROAD SECTION
From Sta 10+00 to 38+04.07
Including Rt. 635 taper and connector roads A, B, C & D
DATE
February 6, 2012
REVISIONS
March 30, 2012
April 30, 2012
November 30, 2012
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BRIAN P. SMffH
CERTIFICATE No.
.0 14591 �'
� 1 %S''I UNAL Else sv
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RIAN Pr SMITH, PE
IVIL ENGINEERING, INC,
9@0 ram ffloffl
M DMNH 4 MD KMHN@
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
DWG. NAME
Miller School 2.pro
SHEEP
C2, 1
Cu
USE EC-2, LTNING NEW STOP SIGN o . - . : :: X _ 25 'R
Ex . cable guardrail 5 ,R `'�:: +-' - � RELOCATE \
o OLD M0A0IN Ex . bench T.B.R. o? E g p \
o / :in::;:::�:c 1 /
#10
:c�.::: t\ Ex. light pole
3 0 / > '
a� a' Ex, 6" PVC pipe 07.1 r\ .M ;.:.:. RELOCATE / o
CONNECTOR B ' /CD
vq ' `�
�' inv out=702.68 m O xo :: rn : - : �OQ : :. Ex . water meter / ,�
_..- -" "1 X r x w c�? o rn CD �,- y: : ; ::: ; : ; :..... Ex . park igg-- Wh itQ oakCO
o . LCi;.;.; ; Cr):: .
SAW -CUT Ln
x , / `' r` �' a�F —� --- + / �--. • ::;�Q2::::::� . USE EC-2, L I G i \co
EXISTING W co ,� o — q :ui ._ f: . X:.. x;
PAVEMENT I o x x o in o o `� o co x X x .. X : �9 ::::: :.:. ;. ?c x �r CONNECTOR C'
°' rcn m xCD I +' r UFk, c co co coo CURB -- ----- - - :. y: - - - :: cm:: • .
o c b co o \ Ex . s ig ( �\ o to
'J LLB I I �+ I E O C W C) CON � �o � :�:� f � � - .% :� : � � � n
r; I cry , I x SAW -CUT
U W > �c n O x o NCO rJ :� N
o x �, I� I I rn co co r- cu ' fie— - - - r co :::::::::::::: — 700— 'I :: X. ce \ EXISTING
x oD W �+ I J m r Loop �t of Q o X co x o ,� ►� : = _ :::::: o .: • : :: • : p, o.:. ; . , q In
m el Mille a � — W W oo pro :;o.:.;. .: :.;.•.�:•:•: :: ;E''�:.:.:.:.:.::.::::. rn PAVEMENT
�+ Sa— \ o '1 ,::':_:::_::v.:_;r:;:;::: - : :: l lac I co
�- \ a..,..... �. co
" CO �� =c aco x'. - / :.Qr;- _ - - - - :� \� NEW STOP SIGN
�\ - a - - \� 95.1
t �a :=fir �� ��-.:� �� .:..:.:.::�� ��::: =:::
�Y h - - - � �' � - � � EXISTING PAVEMENT TO BE REMOVED.
.: / : B : : :
:. � ,,,�� - �� ,,� .. 2 ... , ... • .. _ . • .�. � �, � � � � :::.: GRADE TO DRAIN. TOPSOILED,
x . av rrtent �... / ?> 'E Willow oak
P i D
SEEDED & MULCHED
l
x
FERTILIZED, SEE E
USE EC 2l LINING Ex. fors t - p - Q $
� Y �-�� �- � W RE NOT IN NEW PAVEMENT.
w : A. ; �` Ex . sign - S-�,�-- - �' . '� - -• / � .- ° 1 � � � : � � : i� • ( �
7.11.28
c T.B. / - ' _- -_ --- / /�4.-_ I
Ex . bench :i:::\ : 6'
t . Ex . b h / / / - � - - - 702 / T ` 747 `� ; : u' 690.4
/ ��� Ex. 18" _ °O \.;:;:.:•.. :\'
\ : cal. R E 1�" - ° ,�- / 4,� Ex. 42" Ex. forsythia
x / ar • map r ; .
,6ak tl� k \
�j `L9 White oak
� a / 2 ,(13
NEW D white- oak- �
pa - - - - ORCSP-OFF R �A� - Ex.
3 - Ex. 6" PVC pipe Ex. 42' -
/ 1� ,62 A - \ T . FUSE EC 2, LINING
D ,62 1. 22 �6 Inv out-698.87 �w ® o
—T - R 55 - -
nt Q x / w ;r:T: - - - Ex. fire hydrant - -
Cq
:-
/ - _ - assembly �'� r d d o0 9'
// - : \: 9
2' / �::
b - - - - to ak ti
I� �W���-���� C�����-./ -- __ NEW GR-9 � 695.0
/ J - END SECTION b°2� 55 ` o B.R.
NEW STOPSIG- ' pb• - - - - - - - 2
` _ °52 D � ��,('A Ex. 2" ,69 Ex. speed
-oak �� Ex. 27" NEW STOP, SIGN �- limit sign
= . :. s N / ;.�'._:. D a�C� `. % ,6. \ \ ` 5.14 x695.5
Ex. pavement I ����:� ::: :•:� / 1 A2 Ex. 2 \ white oak �:�?::�:�:::::::: ; _. ..�.;.-:;:;: _ •
HATCHED AREA \ / / / R 9u
T.B.R. x 1 0 �.: . ; . / , :;:•r. 26 USE EC-2, LINING 'L ':
CONNECTOR
P 2 O II IIi
r. Ex. 12" ,� � / / :::::: Ex: 3&'- - ao :25.'R:.:. :
beech / / / , : j , ..:: ; .: / / / / �4, \ �vh it0 oak
/ white oak °
Ex. grass -,STA 29+44 �_ g \
NEW 15" HDPE STORM PIPE _ - o'
C4 STA 5+28 - STA 26+61 57.23 LF @ 7.86/ - ,gam `�\ Ex. 27" \ �` 6 4.25
/ A
( i I o► `V INCLUDING END SECTIONS willow oak
x E deidyous j : _ / ,�. ,�D� NEW 15" HDPE STORM PIPE NEW 18 ' HDPE STORM PIPE
x a olia I / �� '� 52.29 LF @ 1.91% 67.04 LF @ 13.42% INV IN=703.50 o
m
g I / N INCLUDING END SECTIONS INCLUDING END SECTIONS INV OUT=699.00 - .Ex. 18" d��
T .B .R . 1 / i no oak \
( ( J �� INV IN=703.0 INV IN=699.00 OUTLET PROTECTION
SEE DETAILS TABLE)
Ex. concrete wall j ( / I :::I::::::::: ■ / v i INV OUT=702.00 INVOUTOUTPROTECOTION ( / - Ex. paper
T.B.R. , I I / 1 ::t ; : / / / (SEE DETAILS & TABLE) _ / / ` R
9 ��:�:�.�:�:�:- \ box \
T.M. 72 32 / / \'
xRil THE MILLER SCHOOL OF ALBEMARLE SE EC-2, LINING
Ex. soccer field x m �� 1 \ 1 ::::o: I I ( / D.B. 68-754 / / / / / / STA 0+ 18- Ex . grass
o \
D.B. 45-504 DESC . / / / NEW 15 " HDPE\ STORM RIPE 9 \ \
I \ \ \ ■ \. I I / D.B. 24-66 DESC . / / 42.50 F @ 2.35% Ex • 42'� x . 24 "
/ ::::::
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T.B.R.
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END SECTION \
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BEGIN EC-3, TYPE A LINING
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white o� \�' : ( \ 53.66 LF @ 7.63% I I I I I I I I
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' ° 2 9 x. 1 / / Ex. 39" \ Ex .l 12" i I I I :..::::
I redbud \ `, \ \ ROAD STAKEOUT, THE CONTRACTOR
\ I ( 1 \ \ SHALL CONTACT THE OWNER/ENGINEER .
T.B.R. Aj� .: ? :�. 23' \ I I I l o� E 27`�' \ \ \ 648.5 \ \ \: \ \ \ THEY WILL CONTACT A LANDSCAPE
\ Ex. 6" x�9 h mlock I \ 1 \ I I E 4'1 I I \ _ \ \ ARCHITECT AND/OR ARBORIST TO
- \ \ ua ka ra I I \ I : \ \ DETERMINE IF A TREE WELL CAN
redbud \ \ cttu 1 \ Iq \ 2 \, , (::: \ PROTECT THE INTENDED TREES.
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topo is approx. \
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NEW TREE WELL T. .R' T.B.R. \ �x . 3" \
(SEE NOTE ON RIGHT) E pine evergreen \ \ \
Ex. 12"
p T.B.R.
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T.B.R• USE EC-3, TYPE A LINING
13B.48 LF @ 9.32% z
INCLUDING END SECTIONS
\ 1 \ INV IN=648.50
Ex. 60' / T` \ \ ::...::::\ :::: \.: ,- INV OUT=635.60
\ poplar / \ \:::: \: \ / \\ OUTLET PROTECTION
2 \ \ NE STOE SIGN \\ \\� (SEE DETAILS & TABLE)
T.B.R. I I \ \:; \.• \ \ \ \ t+� ' \ \ \\�- \�' 1
°
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DATE
February 6, 2012
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April 30, 2012
November 30, 2012
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VIL ENGINEERING, INC.
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4835 Three Chopt Road
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434.296.3644
bpspe@embargmail.com
JOB NUMBER
09-011-00
DWG. NAME
Miller School 2.pro
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434.296.3644
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JOB NUMBER
09-011-00
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Miller School 2.pro
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April 30, 2012
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Troy, VA 22974
434.296.3644
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JOB NUMBER
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April 30, 2012
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14591
RIAN P. SMITH, PE
IVIL ENGINEERING, INC.
GOLF COURSE DESIGN
DESIGN LAND PLANNING
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
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DATE
February 6, 2012
REVISIONS
April 30, 2012
November 30, 2012
SCALE
HORIZ: 1'=30'
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CERTIFICATE No.
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GOLF COURSE DESIGN
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4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
DWG. NAME
Miller School 2.pro
SHEET
C3,3
DATE
February 6, 2012
REVISIONS
April 30, 2012
November 30, 2012
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l ICNAL
RIAN P. SMITH, PE
IVIL ENGINEERING, INC,
LAM DESIGN
DESIGN • LAND PLANNING
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
DWG. NAME
Miller School 2.pro
SHEET
C4n0
DATE
February 6, 2012
REVISIONS
April 30, 2012
November 30, 2012
April 15, 2013
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AN P. SMITH, PE
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GOLF COURSE DESIGN
DESIGN • LAND PLANNING
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Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
�f..� 9
DWG. NAME
Miller School 2,pro
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`.' .... ' �...... ti : �..'.'. ... �....... \ AREA OF TMP 72-52=1,047 ACRES
AREA OF CRITICAL SLOPES ON PARCEL: UNKNOWN
�`• s°° • �. • • • : , ,i. , \ PERCENTAGE OF CRITICAL SLOPES ON PROPERTY: UNKNOWN
\. A /
• 'X•. . . \ \ \ AREA OF CRITICAL SLOPES DISTURBED: 1.24 ACRES /
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April 30, 2012
November 30, 2012
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�SSIWNAL
BRIAN P. SMITH PE
CIVIL ENGINEERING, INC,
WE Dma - WD FLIMEN
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
09-011-00
DWG. NAME
Miller School 2.pro
SHEET
C5,0
DATE
February 6, 2012
REVISIONS
April 30, 2012
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IAN P. SMITH, PE
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GOLF COURSE DESIM1ERIONE
LAND PLA
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmaiI com
JOB NUMBER
DWG. NAME
Miller School 2.pro
SHEET
C6,0
Ex 1 year fiMO'Vqns.ain as -
00Td�lgnated by the County (
�/ of Alb marls
/ Existing open flelC \ \ / , Ex. 100-year floodplain as designc#ed-by the County
/ NEW MITIGATIO ,AREA 11 -� \�\ i / / of Albemarle GIS maps.
Hatched area � prox. 62.5' wide x 1,680'' long \ \
\ =2.41 ACRES /p \ \\ \ The stream buffer along the Mechum, shiver is 100-feet from`
\\ / i the banks of theAyaterway or the limits of the floodplaln, \
q J \ / whichever Is greater`
Mechums River r \
oo� C�O� % �"' _ -� l� - - - _ _ = "� `? Existing open field
/ // / `.- ^- ;,:.(g'C -'i '-� -'i'i \� ` ` // �` - - ��`� `,` -•. NEW MITIGATION`AREA 2
/ / •--�'� ��,!%� -� \ \ \ ` / - ���� -. `�`' --- `--_ Hatched area appro�: 6 5' wide x 1,659' long
=2.38 acres F U
/ Total area planted-4J9 �res
!,/� / \ l f-- '- Ex. 100-year flo d lain as designated b the Coun
i - Q/ - - -��\ \ \ \ / j '���\'�\ ...._ `- _ of Albemarle GIS maps. g y -�
Xx
MITIGATION CALCULATIONS:
Total limits of disturbance within the stream buffer=104,302 Sq. Ft.
Mitigation area required= 2 x 104,302 Sq. Ft.=208,604 Sq. Ft.=4.79 acres
From the Design Manual using Option 1.c.
For every acre, plant 600 hardwood and/or pine seedlings on approximately
8' x 8' centers with tree tubes and mats.
Number of seedlings required=4.79 x 600--2,873 hardwood and/or pine seedlings
The type of seedlings shall be chosen from the CBLAD manual.
Appendty C- Planting Detaiis
BARE ROOT SEEDLINGS AND YEAR TRANSPLANTS
(Caken from Ses tiou VII oFE%te Che,3apeake Bay Rip Tian F.asidbxak. Palone,Rosatme S, and Albert H todd, eds.1999)
Generally; seedlings;tuicl.years.ansplantsshouldhave-thelollo�vin characte- isties-whenplanted,
l . `11 should bce'at the same level that the were g wrh at the nurs . Look for the r of
Y a ery. _ _ o
collar to deteffmine depth,.
2. Tl e roots shotuld be straight doe , or spread out, butnot curved, bent:ar doubled back to
form a "U" or `1;'shape.
3. Tlleplant shoWclbefiimlytam p tlinremoving any air pocketsaround the roots.
d. 'I he plant shouild be in n upright position, even with the ground, nouns hole or on a mound
ofsoil,
1, stove gimb hoe. ixtl
ffrwlad, 4ft had &vl .
d p1 lot back.
2. 1'lava Aetailing aat not
� 1#1llll btrt�� ,Jfhral�
-and P44 Wil,
ag8![asti ruoU.
1 Finkh tilling ,ian 6. Fim -0X9 d
Ball &ad aata?�ailttr a -it's
if with 1px 1, t f
'1 >tr4. 7-S. 1"tw at�9tatfsl ;4t� 4011 Of "hmtiar" (Skotrh ttdap(ed fieun U-S. l%nxt'ti $ervief aural `Ilse lrtar;<
ticetlrr"UVivulturt, t ltta,19 64
Riparian Buffers Guidance, Manual
MAINTENANCE AND PLANTING SCHEDULE:
1. The plants shall be maintained In a healthy condition and replaced
within the first year if not.
2. The planting schedule Is anticipated to occur during the spring of 2012.
Appendix C - Planting Detai is
"t
`Ni
F*:'�"wt�. >�,• �'�'`�;"�'k "y t "'°'k�"w '�`�+� `� �+' '"`'h•'*;,�'t`45,'*.�R: .`;`fie 'y'L�'`,. '^.°v"ti''y.
. .. hhyl. n�.>§'..y ��':..�'.i? h*vR�\. .y - n1�4 jj�.4'��'•i q `..4 v.'y14 'S. '1 �.' �i*.'�yk y'`�.. �'4t. ��'M1.�:'� 4�n
". '��'Oe`u�....X �`w C+ �. �\.: :•.�M,�e, A,4ly. i..�1\�, .,e, Y ++�\.M1 +� �9,. .4 ��,'. tia.. S. t
.+y+�yi�*^�6 M"Yah�^�„c ���'`�kh. .ti+ a4�"M1h:\i�Y"+t`, ie,1��. V�• � yi .y'4.1�y 'M��! "`�4M�',''�.
1. L"Firt bar as Angle Z 114-wrrvr batr mW 3. Insert boar 2 inert
lao-+tt and plash fforword ptzi a V+44.Y11ini� fit, toarard youmelf
to eif+titltat p itkc+at, purr 44 t. �_ t�cilin
r..'t
0 t
.j
yhyy k`
4-putthandle tugs" r. F h h aadla of l 1 rti itar 2 itaA
tas+wArd yow'sW to llrru f9rusA to firms (row Est stale.
a�t1 nt ttc:a�,, raf r�.�crt�ti, -.Mi1 �l Fop of r�aat�.
i y
�' 1 *.'+nh�
'^; �' �''s�`+`�'a"h`,.5"^Mk���.,�a"yy.�.;'�.�^nv ''4�`,'+�''�e,,�'''s'^=..��"' ��+,�"�';",� � �'yF;'��`�•'i;"s,��`�,��; �y��y.'?k�` °i�y+s..
+; #�,4sy, y4 .#'+�'^7`h"nvy''y "'v�4v. �.�ky�„* ��4���t �,, ,�• "' �a"''`Y" w"'�y��* �" s`:�.,'.�" tY�,''w�� `s""ks'Stit �4'0.tr'4
"yyy,,.,r
il*A� forwato a. Fill In last hole 9. Firm k4l
t lxsttt mud br 4ta Mpietg Arr uaA seedbn
flit iuxi . with hve.,L voit:h tkw fooL
Vignrr 7.14llt Nl vtluAa steps In aitw ��k wf tlio slit ea:utlst d satl. I iskeIeal
nI. 1,1.�m E�i�t'u'SI �ervl��.y
Riparian Buffers Guidance Manual
C 3
Appen&v C - Placating Details
Taken from A Case Shicly of The IJteerliRuni Ripariem Project:
1 CiciicleforRipcdrfcrnRestoration Projects. (December 1993)Judith A. Okay. Virginia.
Departir ent ofForestry. Appendix C, p. 16.
I nstal Inn re k" rotectors,
ap ibc l utV4 czd "r sup"TMbe #a 6At iaw Dully
�}� �17K�lii� dca t1�9.t,
Riparian Buffers Guidance Manual
C- 4
DATE
Nov. 18, 2009
REVISIONS
Jan. 11 2010
July 7, 2010
April 13, 2011
February 6, 2012
April 30, 2012
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BRIAN P. SMITH a
CERTIFICATE No.
.off 14511 C� `��
��s`sI�NAL E�
N P. SMITH, PE
ENGINEERING, INC.
GOLF COURSE DESIGN
DESIGN • LAND PLANNING
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
Miller School 2.pro
SHEEP
C6,1
LIST OF SOIL TYPES
27B
ELIOAK LOAM,
2-7%
SLOPES
27C
ELIOAK LOAM,
7-15%
SLOPES
27D
ELIOAK LOAM,
15-25%
SLOPES
34E
GLENELG LOAM,
25-45%
SLOPES
\ \\\\ TEMP. SILT TRAP #1
\ \\ \ \ \ \ \ Scale: 1 2=20' .
\ \\\ \ \ \ \\ \ \\\
WEIR \ \ \ jC ` \ �,`d� 2 TO,I SLOPE
Rp-
+6.1,4.2 ��6°, �8 \\ \ 6 636
/� \ �--
��1�� Il Q?r
626
I o 618
I \ 1 = 615 61B
1
STA 10+00 TO STA 17+00
USE EC-2 SOIL STABILIZATION MATTING
FROM THE ROAD SHOULDER TO THE
LIMITS OF DISTURBANCE
THE GRADING FOR THE TRAVELWAY FROM STA 11+50 TO STA 17+00 CANNOT
BEGIN UNTIL THE CULVERT IS INSTALLED AND SEDIMENT TRAP #1 IS GRADED.
4 M r-
CD
`\\\\\\ ?off
0
LIMITS OF DISTURBANCE m
CHANGE GRADING ON CUT
�\ \ 1 ♦ 1 o o4 SLOPE FROM 2/ 1 TO 1.5/ 1.
34E '
X TEMP.
SILT TRAP #1 1�1 5q
(SEE ENLARGEMENT ABOVE R q6
PS •�� \\ \ �\\� � \ �� \ \ \ ` AND DETAILS ON 7.2 �. �
\\ \ \\\\ \ \ \ \ \ \ \\ \ IP C ) Mu
L ; 2
N
W
A
S
Ex. 4" plastic pipe
inv. out=660.5
7NNECT TO NEW DITCH
Existing rip-rap—
T.B.R.
27C /
27D Ex. silt fence`
T.B.R.
CHANGE GRADING ON CUT
SLOPE FROM 1.5/1 TO 2/1.
CONTRACTOR TO CONSTRUCT A
PERMANENT DIVERSION DITCH /
ABOVE THE 1,5 TO I SLOPES.
Ex. baseball field j �//'
Ao
1.5 TO 1 SLOPE
BEM
LIMITS OF DISTURBANCE
P. SILT TRAP,'
/
— _-__�-� ' %'� '/,' /' (SEE DE,TAILS,O ' 7,.ZY
! _ -- J i / TO I/SLOPE/ //� // SF
Vj
EVERY 100 LF , , o / / I MU
CD 00,
\ \o\�� \ �i\\\♦\ I \ \� \\ \\—��\�\���� \ —_---- _ B� T:I r�- "' _ _ ��� /�� ���� ��� �, /� LIMITS OF DISTURBANCE
BIB— 2_TO 1 SL E _ — - ���� /. /�
CE �� 27D
SEE NARRATIVE~ _
63cr _ _ _ — — — - _ _ _ _ _ — — — , �\%ERSION MUST REMAIN IN PLACE DIRECTING
2� ,OFF TO TRAP 2 UNTIL THE CONTRACTOR
'0 ` \,6�—f—% —i /'/,/I READY TO APPLY ASPHALT PAVING TO THE
�7 — �AVELWAY AS AN ALTERNATIVE A TEMPORARY
CE
PHASE 2
12' x 70' min.
\ I
USC
C /— CULVERT CAN BE USED.
r
11
�} Chi O C} C} I Ct
� P2 'fEMF�SILT TRAP #2-'�
(SEE DETAILS ON C?Z� /
SOILS DELINEATION LINE
(TYPICAL)
I
SF 2 TO 1 SLOPE TS & MU
SF SF
\ \ / / / I I � \� \ r� ' E�
I 1 1 34E
4
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1
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DATE
February 6, 2012
REVISIONS
March 30, 2012
April 30, 2012
November 30, 2012
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BRIAN P. SMffH y
CERTIFICATE No.
14511
BRIAN P. SMITH, PE
CIVIL ENGINEERING, INC.
@@L F CM= DENON
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
09-011-00
DWG. NAME
Miller School 2.pro
SHEET
CTO
DATE
February 6, 2012
REVISIONS
April 30, 2012
November 30, 2012
April 15, 2013
W
SCALE
1'=30'
N1,TH of Lr
Gz
o �
BRIAN P. SMITH a
CERTIFICATE No.
14511
��SSI�NAL F,ly�1
RIAN P. SMITH, PE
IVIL ENGINEERING, INC
GOLF COURSE DESIGN
DESIGN LAND PLANNING
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
�1i7�►111� : �
DWG. NAME
Miller School 2.pro
FC
SHEET
T 1:)
STA 17+51.61
MATCHLINE - SEE SHEET C7.0
Sediment Trap 41 Design
drainage area (acres) 3.9
trap Volumes:
Elevation (ft) Area sf Voltane (CV)
608.0 592
612.0 1,060 122.4
615.0 2,112 298.6
wet storage:
wet storage required (cy)(67 x DA): 259.3
bottom of stone wen' (ft) 612.0
wet storage provided at this elevation (cy) 122.4
slope of wet storage sides 1 to 1
Ibis trap is smaller than normally
required by regulations. Because of this,
it will require more monitoring
and maintenance.
weir length (11) modified:
dry storage
bottom of trap elevation (ft):
dry storage required (cy)(67 x DA):
259.3 bottom trap dimensions: fre.
crest of stone weir (ft)
615.0 top of dam elevation (ft):
dry storage provided at this elevation (cy)
176.2 top width of dam (ft): W
slope of dry storage sides
2 to 1 top trap dimensions: frz'
The contractor shall install and maintain a
safety fence arOUnd each silt trap with excavated storage until such
time the trap is removed from service.
Sediment '1'r•ap #2 Design
drainage area (acres) (<3) 1.7
trap V011lmeS:
Elevation (ft) Area sf Volume (cy)
622.0 480
626.0 1,536 149.3
628.0 2,720 307.0
wet storage:
wet storage required (cy)(67 x DA): 115.9
bottom of stone weir (ft) 626.0
wet storage provided at this elevation (cy) 149.3
slope of wet storage sides 1 to 1
dry storage
dry storage required (cy)(67 x DA):
crest of stone weir (ft)
dry storage provided at this elevation (cy)
slope of dry storage sides
6.0
608.0
616.0
weir length (ft)(6 x DA):
10.4
bottom of trap elevation (ft):
622.0
115.9
bottom trap dimensions:
4x 120',,
628.0
top of dam elevation (ft):
629.0
157.6
top width of dam (ft): W
3 0`
2 to 1
top trap dimensions:
20' Y 136'
The contractor shall install and maintain a safety fence around each silt trap with excavated storage until such
time the trap is removed from service.
Sediment 'Trap 43 Design
drainage area (acres) (<3) 1.1
trap volumes:
Elevation (ft) Area sf Volume (cy)
634.0 240
638.0 816 78.2
640.0 1,520 164.7
wet storage:
wet storage required (cy)(67 x DA): 73.7
bottom of stone weir (ft) 638.0
wet storage provided at this elevation (cy) 78.2
slope of wet storage sides Ito 1
dry storage
dry storage required (cy)(67 x DA): 73.7
crest of stone weir (ft) 640.0
dry storage provided at this elevation (cy) 86.5
slope of dry storage sides 2 to 1
weir length (ft)(6 x DA):
6.6
bottom of trap elevation (ft):
634.0
bottom trap dimensions:
60'
top of dam elevation (ft):
641.0
top width of slain (ft): W
top trap dimensions:
20 x 76`;
The contractor shall install and maintain a safety fence around each silt trap with excavated storage until such
time the trap is removed from service.
DRY STORAGE -
V= A'A2xD2
2
7
NET STORAGE OR
EXGAVATED STORAGE
A
V, = 2 A, x D,
A2=WxL
A,=WxL D2
D �
A=WxL
#5 STONE
TYPICAL SEDIMENT TRAP
Ho H
GLASS I RIPRAP
SOIL EROSION & SEDIMENT CONTROL SYMBOLS
NO. TITLE KEY SYMBOL
3.02 CONSTRUCTION ENTRANCE CE
3.03 CONSTRUCTION ROAD STABILIZATION CRS
3.05 SILT FENCE SF X-x x-x
3.07 INLET PROTECTION
3.08 CULVERT INLET PROTECTION CIP
3.09 TEMPORARY DIVERSION DIKE DID
3.11 TEMPORARY RIGHT OF WAY DIVERSION RWD
3.13 TEMPORARY SEDIMENT TRAP O
3.18 OUTLET PROTECTION OP
3.20 ROCK CHECK DAM
3.25 UTILITY STREAM CROSSING
3.30 TOPSOILING TO roe
3.31 TEMPORARY SEEDING TS s
3.32 PERMANENT SEEDING PS �-a-►
3.35 MULCH MU--Q---►
3.39 DUST CONTROL DC a -,-}-
Sediment Trap #5 Design
Sediment I't•ap #4 Design
drainage area (acres) (<3)
drainage area (acres) (<3)
2.4
trap volumes:
trap volumes:
Elevation (ft)
�krea s1
Elevation (ft)
Area sf Volume (cv)
649.0
500
633.5
800
653.0
1,044
637.5
1,392 162.4
655.0
1,716
640.0
2,312 333.9
wet storage:
wet storage required (cy)(67 x DA): 157.5
bottom of stone weir (ft) 637.5
wet storage provided at this elevation (cy) 162.4
slope of wet storage sides Ito 1
wet storage:
wet storage required (cy)(67 x DA):
bottom of stone weir (ft)
wet storage provided at this elevation (cy)
slope of wet storage sides
weir length (ft)(6 x DA):
14.1
dry storage
bottom of trap elevation (ft):
633.5
dry storage
dry storage required (cy)(67 x DA): 157.5
bottom trap dimensions:
16! Y �Q"
dry storage required (cy)(67 x DA):
crest of stone weir (ft) 640.0
top of darn elevation (ft):
641 0
crest of stone weir (ft)
dry storage provided at this elevation (cy) 171.5
top width of dam (ft): W
3 Q`
dry storage provided at this elevation (cy)
slope of dry storage sides 2 to 1
top trap dimensions:
34` x 68''
slope of dry storage sides
1.5
Volume (cy)
114.4
216.6
100.5
653.0
114.4
I to 1
weir length (ft)(6 x DA):
9.0
bottom of trap elevation (ft):
649.0
100.5
bottom trap dimensions:
655.0
top of dam elevation (ft):
656.0
102.2
top width of dun (ft): W
3 0;
2 to 1
top trap dimensions:
26' x'66'
The total amount of disturbed area Is 6.92 acres
GENERAL EROSION & SEDIMENT CONTROL NOTES
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 7:00am to 9:00pm.
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 o slides,
sinking, or collapse.
16. The developer shall reserve the right to install, maintain, remove or convert to permanent stormwater management facilities
where applicable all erosion control measures required by this plan regardless of the sale of any lot, unit, building or other
portion of the property.
17. Temporary stabilization shall be temporary seeding and mulching. Seeding is to be at 75 lbs/acre, and in the months of September to
February to consist a 50/50 mix of Annual Ryegrass and Cereal Winter Rye, or in March and April to consist of Annual Rye, or May
through August to consist of German Millet. Straw mulch is to be applied at 80lbs/100sf. Alternatives are subject to approved
by the County erosion control inspector.
18. Permanent stabilization shall be lime and fertilizer, permanent seeding, and mulch. Agricultural grade limestone shall be applied at
90lbs/1000sf, incorporated into the top 4-6 inches of soil. Fertilizer shall be applied at 1000lbs/acre and consist of a 10-20-10
nutrient mix. Permanent seeding shall be applied at 180lbs/acre and consist of 95% Kentucky 31 or Tall Fescue and 0-5%
Perennial Ryegrass or Kentucky Bluegrass. Straw mulch is to be applied at 80lbs/100sf. Alternatives are subject to approved by
the County erosion control inspector.
19. Maintenance: All measures are to be inspected weekly and after each rainfall. Any damage or clogging to structural measures is to
be repair immediately. Silt traps are to be cleaned when 50% of the wet storage volume is filled with sediment. All seeded areas are
to be reseeded when necessary to achieve a good stand of grass. Silt fence and diversion dykes which are collecting sediment to
half their height must be cleaned and repaired immediately.
20. All temporary erosion and sediment control measures are to be removed within 30 days of final site stabilization, when measures are
no longer needed, subject to approval by the County erosion control inspector.
21. This plan shall be void if the owner does not obtain a permit within 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)
OTHER NOTES
1. This plan is provided for the implementation of erosion and sediment control measures only.
2. The existing vegetation at the site is grass and woods.
3. The earthwork quantities have not been calculated.
4. All excavation for underground pipe installation must comply with OSHA Standards for the Construction Industry (29 CFR Part 1926).
5. The location of existing utilities across or along the line of the proposed work are not necessarily shown on the plans and where
shown are only approximately correct. The contractor shall on his own initiative locate all underground lines and structures as necessary.
6. The contractor shall verify the locations of all boundaries, buildings, vegetation and other pertinent site elements.
7. The contractor shall be responsible for notifying "MISS UTILITY" - 811.
8. Any damage to existing utilities caused by the contractor or its subcontractors shall be the contractor's sole responsibility to repair.
This expense is the contractor's responsibility.
9. All paving, drainage related materials and construction methods shall conform to current specifications and standards of VDOT unless
otherwise noted.
10. 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.
11. All slopes and disturbed areas are to be fertilized, seeded and mulched. The maximum allowable slope is 2:1. Where it is reasonably
obtainable, lesser slopes of 3:1 or better are to be achieved.
12. Paved, rip -rap or stabilization mat lined ditch may be required when in the opinion of the Engineer it is deemed necessary in order to
stabilize a drainage channel.
13. All traffic control signs shall conform to the Virginia Manual for Uniform Traffic Control Devices.
14. Unless otherwise noted all concrete pipe shall be reinforced concrete pipe - Class III.
15. Concrete and asphalt shall not be placed unless the air temperature is at least 40 degrees in the shade and rising. Material shall not
be placed on frozen subgrade.
16. Existing asphalt pavement shall be saw cut and removed as pier the specifications. Removal shall be done in such a manner as to
not tear, bulge or displace adjacent pavement. Edges shall be clean and vertical. All cuts shall be parallel or perpendicular to the
direction of traffic.
GROUNDCOVER FOR SLOPES STEEPER THAN 3 TO 1
1. For slopes steeper than 3 to 1, a low -maintenance groundcover, seed mixture shall be used. An acceptable one from the erosion control manual
is 108 lbs/acre of Kentucky Fescue, 2 lbs/acre of Red Top gralss, 20 lbs/acre of season nurse crop (see III-303 of the manual for options),
20 lbs/acre of crownvetch. Depending on the seeding season, variations may be used in accordance with the manual.
2. For slopes steeper than 3 to 1, soil stabilization blankets shall be used. The type and method of installation shall be chosen by a
contractor/manufacturer experienced in this type of work and shall be in accordance with the manual.
Outlet Protection Design Table
Apron assumed to be on level ground
Outlet
Hydraulics
Apron
Name
Diameter
Q2, 2-yr
TVV2. 2-yr tailwater depth
V2. 2-yr velocity Upstream width La,
Length of Apron
Downstream width
VDOT rip -rap size
(ft)
(cfs)
(ft)
(fps) (ft)
(ft)
(ft)
Sta 16+95
1.25
1.08
0
11.9 3.75
10.00
13.75
Class I
Sta 18+36.5
1.25
2.19
0
9.5 3.75
10.00
13.75
Class I
Connector'A'
1.25
1.21
0
6.1 3.75
10.00
13.75
Class 1
Sta 22+14
1.25
1.42
0
10.1 3.75
10.00
13.75
Class I
Connector'B'
1.25
1.25
0
5.9 3.75
10.00
13.75
Class I
Sta 26+61
1.50
3.43
0
15.6 4.50
10.00
14.50
Class
Sta 29+44
1.25
0.57
0
7.7 3.75
10.00
13.75
Class I
Connector'D'
1.25
0.96
0
5.4 3.75
10.00
13.75
Class I
Sta 36+84
2.00
13.58
0
19.8 6.00
12.00
18.00
Class I
DATE
February 6, 2012
REVISIONS
April 30, 2012
November 30, 2012
April 15, 2013
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BRIAN P. SMITH
CERTIFICATE No.
.off 14511 w�
NAL
BRIAN P. SMITH, PE
CIVIL ENGINEERING, INC,
WLP MEW DE211H
WE BERM - LMD FLMRN
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
09-011-00
DWG. NAME
Miller School 2.pro
SHEET
The contractor shall install and maintain a safety fence arOUnd each silt trap with excavated storage until such
time the trap is removed from service. The contractor shall install and maintain a safety fence around each silt trap with excavated storage until such
time the trap is removed from service.
C7,2
DATE
February 6, 2012
1992 3.02
STONE CONSTRUCTION ENTRANCE
70' MIN. EXISTING,
A 3 PAVEMENT
FILTER CLOTH"'g- MIN A MOUNTABLE BERM
7 (OPTIONAL)
SIDE ELEVATION
GROUND
12' MIN.*
70' MIN.
B WASHRACK
(— (OPTIONAL)
Z- VDOT 91 ( � POSITIVE DRAINAGE
COURSE AGGREGATE B TO SEDIMENT
TRAPPING DEVICE
• MUST EXTEND FULL WIDTH
OOF PEIRAMONS AND EGRESS PLAN VIEW
12, MIN.
SECTION A —A
RELN1-UKLty LUNLKt1t LKMIN ZWMI-L
SECTION B—B
Source: Adapted from 1983 Maryland Standards for Soil Plate 3.02-1
Erosion and Sediment Contrgl, and Va. DSWC
III-9
CONSTRUCTION OF A SILT FENCE
(WITHOUT WIRE SUPPORT)
1. SET THE STAKES. 2. EXCAVATE A 4"X 4" TRENCH
UPSLOPE ALONG THE LINE OF
STAKES
6-MAX,
FLOW
4"
3. STAPLE FILTER" MATERIAL 4. BACKFILL AND COMPACT
TO STAKES AND EXTEND THE EXCAVATED SOIL.
IT INTO THE TRENCH.
1992
Pt •S;[
Ill(®
•
a , •
Ac
POINTS A SHOULD BE HIGHER THAN POINT B.
DRAINAGEWAY INSTALLATION
(FRONT ELEVATION)
3.13
TEMPORARY SEDIMENT TRAP
1` I VARIABLE#
ORK;WAL VARIABLE`,_ _I
GROUND
ELEV.
I .a'
4
67 CU. YD./ACRE _ VARIABLE*
ry
67 CU. YD./ACRE
4' MAX.
(EXCAVATED)
FILTER CLOTH ORIGINAL
GROUND
ELEV.
•SEE PLATE 3.13-1 COARSE AGGREGATE CLASS I RIPRAP
CROSS SECTION OF OUTLET
CLASS 2 RIPRAP LENGTH (IN FEET) _
(IX DRAINAGE AREA
(IN AC.)
ONEKE
DIKE
�)GOARSE"AGGREGATE / f
EXCAVATED FILTER CLOTH"`..
AREA
*COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5
OUTLET (PERSPECTIVE VIEW)
III - 76
Plate 3.13-2
PROTECTION
ENDWALL
1QE�OF" FILL �_ a. ' ...' -. �.-. ,.,�,�.
CULYE RRT
i
Toe or FILL
SILTFECNc1=
0 r DISTANCE IS 6` MINIMUM IF FLOW
IS TOWARD EMBANKMENT
FLOW
OPTNA STONOm
FLAW
VDOT 30#357 OR #
TO REPLACE SILT FENCE
HIGH VELQCV OF FLOW
t
Sour,Co. Adapted from VDOT Standard
Sheets and Va. DSWC
Plate "3
1992
3.18
PIPE OUTLET CONDITIONS
A A
�. PIPE OUTLET TO FLAT
AREA WITH NO DEFINED
CHANNEL
PLAN VIEW
L a
0 % >
d
SECTION A —A FILTER CLOTH KEY IN 6'-9"; RECOMMENDED FOR ENTIRE PERIMETER
A
A 3d0 (MIN.)
---------
----- -r
i
4d '
PIPE OUTLET TO WELL,
DEFINED CHANNEL
PLAN VIEW
La
„ I
I 0%
d
i
SECTION A —A
FILTER CLOTH KEY IN 6"-9'; RECOMMENDED FOR ENTIRE PERIMETER
NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP. GABION
BASKET, OR CONCRETE.
2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED
USING PLATES 3,16-3 AND 3.18-4.
3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT i
LESS THAN 6 INCHES. 1
I
Source: Va. DSWC
1992
III - 157
TEMPORARY RIGHT-OF-WAY
DIVERSIONS
COARSE AGGREGATE lg' MIN•
�, M�xIMUM
TYPICAL., GRAVEL STRUCTURE
COMPACTED SOIL
----------------------
TYPICAL EARTHEN STRUCTURE
Source: Va. DSWC
III - 62
Plate 3.18-1
Plate 3.11-1
REVISIONS
April 30, 2012
November 30, 2012
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N.T.S.
NLTH of Grp
BRIAN P. SMFrH
CERTIFICATE No.
14511
��ss1pNAL �,TyC'�
BRIAN P. SMITH, PE
CIVIL ENGINEERING, INC.
9HE BERM WD FLaffma
48315 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
09-011-00
DWG. NAME
Miller School 2.pro
SHEET
C73
A. Nfillin"ILIM Standards:
Minimum Standards 4 1 :
Permanent or temporary soil stabilization must be applied to denuded areas within 7 days
after final grade is reached on tiny portion of the site. Temporary soil stabilization shall be
applied within 7 days to denuded areas which may not be at final grade but will remain
dormant (undisturbed) for longer than 30 days. Pernnartent stabilization shall be applied to
areas that are to be left dormant for more than one year.
Soil stabilization refers to measures which protect soil from the erosive forces of raindrop
impact and flowing water. Applicable practices include vegetative establishment, mulching,
soil stabilization blankets and the early application of gravel base on areas to be paved. Soil
stabilization measures should be selected to be appropriate for the time of year, site
conditions and estimated duration of use.
Minimum Standards 4(2):
During construction of the project, soil stockpiles 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 soil intentionally transported
from the project area.
Minimum Standards 4 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, in the opinion of the local program administrator or his
designated agent, is uniform, mature enough to survive and will inhibit erosion.
Minimum Standards 11(4):
Sediment basins and traps, perimeter dikes, Sediment barriers and other measures intended to
trapsediment shall be constructed a a s first step in any land disturbing activity and shall be
made functional before up slope land disturbance takes place.
Minimum Standards 4(5):
Stabilization measures shall be applied to earthen t pp hen structures such as dams, dikes, and
diversions immediately after installation.
Minimum Standards 4 6
Z
Sediment traps anci 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.
SOIL EROSION CONTROL
02020 - 1
It has it moderate permeability rate and an erodibility factor (K) of 0.28. The hydrological
group is C.
27C — Elioak Loamn, 7-15% slopes. This deep, strongly sloping, well drained soil is on
convex ridge tops and side slopes. Generally, the surface layer is dark brown and reddish
brown loans about 8 inches thick. The subsoil is about 41 inches thick. The upper part is
yellowish red silty clay loans and red silty clay and red silty clay loam and silt barn in the
lower part. It has a moderate permeability rate and an. erodibility factor (K) of 0.28. 'Ihe
hydrological group is C.
27D — Elioak Loam, 15-25% slopes. This deep, moderately steep, well drained soil is on
side slopes. Generally, the surface layer is dark brown and reddish brown loam about 8
inches thick. The subsoil is about 41 inches thick. The upper part is yellowish read silty clay
loam and red silty clay and rest silty clay loam and silt loam in tine lower part. It Rias a
a
moderate permeability rate and all erodibility factor K of 0.28. 'Ilse hydrological
P Y Y Oogroup is
C.
34E — Glenelg loath, 25-45% slopes. This deep, steep, well drained soil is on side slopes
leading clown to drainage ways. Generally, the surface layer is dark brown and dark
yellowish brown loath about 8 inches thick. The subsoil is about 20 inches thick.. It is
mostly strong brown and yellowish red silty clay loam. It hits a moderate permeaability rate
and an. erodibility factor (K) of 0.43. The hydrological group is B.
6. Critical areas:
Care should be taken on a daily basis to maintain the erosion control structures throughout
the site to prevent silt from leaving the construction area. This shall be especially true for
the steep area that drains towards the roadside ditch.
7. Erosion and sediment control measures
Measures on tine accompanying drawings are to be installed in accordance with the
specifications and standards of the "Virginia Erosion and Sedimentation Control
Handbook", 'Third Edition, 1992. The measures narned below should be installed in
accordance with this handbook as noted below.
Special E & S Control Instructions Concerning the Stream Crossing Near Station 10+40:
a. Due to the limited work area and close proximity to the state road, construction of the
stream crossing will require special awareness and attention during the clearing, storm
installations, and grading operations. The following is one acceptable method to
minimize potential erosion, protect the stream and to minimize interference with
traffic oil the state road.
b. The contractor shall construct a temporary construction entrance (CE) in the level area
just to the north of the existing box culvert. This will allow initial equipment and supply
access. Just upstream of the junction box, the contractor can temporarily block the
stream with sand bags and install ant overflow pipe that drains to the existing box
culvert. This should keep the work area relatively dry. A coir log shall be securely
SOIL EROSION CONTROL 02020 - 5
b. Surface runoff from disturbed areas that is comprised of flow form 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 at twenty-five year storm of 24-11our 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.
Minimum Standards 4 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.
Minimum Standards 4(8):
Concentrated runoff shall not flow down slit or fill slopes unless contained within an
adequate temporary or permanent channel, flume or slope drain structure.
Minimum Standards 9 :
Whenever water seeps from a slope face, adequate drainage or other protection shall be
provided.
Minimum Standards 4(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.
Minimum Standards 4 11 :
Before newly constructed stormwater conveyance channels or pipes are made operational,
adequate Outlet protection and any required
ured temporary or permanent channel linitig shall be
installed in both tine conveyance charnel and receiving channel.
Minimanm Standards 402):
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 e ossible during construction. Non-erodib a 1 material shall be used for the construction of
causeways and cofferdams. Earthen till n e y may b used for these structures if armored by non -
erodible cover materials.
Minimum Standards 4(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 non -erodible material
SOIL EROSION CONTROL
02020 - 2
placed at the inlet of the existing box culvert. At this point, the contractor can perform
the initial clearing of the stream banks, prepare the base grade and 'install the culvert
externsion a nd junction box.
c. Whenever possible, all materials and equipment shall enter fromm the school side of this
stream. Minimal activity shall occur along the state road.
d. The new road just to the east of the stream can serve as a staging area for the
construction of the stream crossing.
e. The next stage of work will be the installation of the new box culvert. Relocate the sand
bags and overflow pipe upstream of the box culvert inlet. Perform the initial clearing of
the stream banks as before. Prepare the base and install the culvert. Continue to move
the coir log upstream and place at the inlet of the most recently installed section of
culvert. Clear and excavate only the minimum area necessary to install each stage. Do
not clear the entire length of stream bank.
f. Backfilling call occur after each stage, but only to a point just above the box culvert.
Once the entire length of storm items have been installed, the remainder of the fill can
be placed. The stream shall be protected (luring the next filling and compaction process
with the noted Silt Fencing (SF) and Silt Trap (ST).
g. At this point, the temporary construction entrance (CE) can be relocated over the new
entrance.
General Proiect Instructions
a. All E & S Control measures for each drainage area shall be installed according to the
attached plans and approved by the inspector from Albemarle County prior- to any
clearing and grading.
b. Begin clearing and grading.
c. Apply dust control (DC) treasures as needed.
d. Apply construction road stabilization (CRS) is soon as possible.
e. Apply inlet protection (IP) soon alter the installation of the new inlet.
f. Apply permanent seeding (PS) and mulch (MU) to areas as indicated on the plans.
g. All temporary sediment control structures tare to remain in place and will be removed
only when a satisfactory stand of permanent grass is present.
STRUCTURAL METHODS
CE = CONSTRUCTION ENTREINCE
A temporary construction entrance, without a wash rack, shall be installed where the access
are intersects with the state road.
CRS= CONSTRUCTION ROAD STABILIZATION
Construction road stabilization, or stone, shall be placed along on -site vehicle transportation
routes immediately after grading to minimize erosion during wet weather.
DC = DUST CONTROL
A variety of dust control methods can be chosen to reduce surface and air movement of dust
during land disturbing, demolition, and construction activities. Some of the more common
methods are water sprinkling, spray -on adhesives, vegetative cover, mulch, stone, or
calcium chloride.
SOIL EROSION CONTROL 02020 - 6
shall be provided.
Minitnutn Standards 4 14 :
All applicable federal, state and local regulations pertaining to working in of crossing live
watercourses shall be met.
Minimum Standards 4(15):
Tfle bed and banks of a watercourse shall be stabilized innitnediately after work inn the
watercourse is completed.
Minimurnn Standards 4(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 tlu-ough an approved
sediment trapping device, or both, and discharged in it 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
erosion �rosron and promote stabilization.
e. Re -stabilization shall be accomplished in accordance with these regulations.
f. Applicable safety regulations shall be complied with.
Minimum Standards 407):
Where construction vehicle access routes intersect paved public roads, provisions shall be
made to minimize the transport of sediment by vehicular tracking onto the paved surface.
Where sediment 's transported nt a • u ace the cad • i onto a public road surface, r shall be cleaned
thoroughly at the end of each day. Sediment shall be removed from the roads by shoveling or
sweeping and transported to it sediment control disposal area. Street washing shall be
allowed only alter sediment is removed in this manner. This provision shall apply to
individual subdivision lots as well as to larger land -disturbing activities.
Minimum Standards 4(18):
All temporary erosion and sediment control measures shall be removed within 30 days after
final site stabilization or alter the temporary measures are no longer needed, unless otherwise
authorized by the local program administrator. Trapped sediment and the disturbed soil areas
resulting from the disposition of temporary measures shall be permanently stabilized to
prevent further erosion and sedimentation.
Minimum Standards 4(,19):
Properties and waterways downstream from development sites shall be protected front
sediment deposition, erosion and damage due to increases in volume, velocity and peals flow
SOIL EROSION CONTROL
02020 - 3
IP = INLET PROTECTION
All storm sewer inlets shall be protected during construction. Sediment -laden water shall be
filtered before entering the storm sewer inlets.
SF = SILT FENCE
Silt fence sediment barriers will be installed clown slope of areas with minimal grades to
filter sediment -laden runoff from sheet flow as indicated on the plans.
VEGETATIVE METHODS:
PS = PERMANENT SEEDING
All areas disturbed by construction shall be stabilized with permanent seeding or a
vegetative cover immediately following finished gusting.
IU='fUYSUILIN U
Topsoil will be stripped from areas to be graded and stockpiled for later use. Stockpile
locations shall be located off -site and area to be stabilized with temporary vegetation.
TS = TEMPORARY SEEDING
All denuded areas which will be let dormant for extended periods of time shall be seeded
with fast germinating temporary vegetation immediately following grading. Selection of the
seed mixture will depend ors the time of the year it is applied.
MU = IbIULCH EROSION CONTROL BLANKETS
Mulch or erosion control blankets will be installed over fill slopes which have been brought
to final grade and have been seeded to protect the slopes from rill and gully erosion anci to
allow seed to germinate properly.
S. Permanent and temporary stabilization:
Permanent: All areas disturbed by construction shall be stabilized with permanent seeding
or a vegetative cover immediately following finished grading. Generally, if the soil is too
red it should be replaced with good brown topsoil. Lime shall be a plied at a rate of 2 tons
per acre of pulverized agricultural grade limestone (90 lbs. /1,0001r) depending ors the soil
pH. In. addition, 10-20-10 fertilizer shall be applied at a rate of 1,000 lbs./acre (23-lbs./1,000
ftZ). Both the time and fertilizer shall be uniformly incorporated into the top 4 to 6 inches of
loose soil and worked in by hand with it steel rake. Grass seed shall be uniformly planted
with 1/4" to soil cover. The grass seed for the shoulders should be different than on the
steep slopes. fit either case the seed should be certified and indicated on the tag that it has
been tested within the past 12 months.
Follow the seeding specifications (types and rates) its indicated for a contractors mix
(sunny locations) froth Southern States.
If it hydro -seeder is to be used, the seed shall not be left in the tank for more than 30
minutes. Any longer may damage the seed and result in a poor germination production.
SOIL EROSION CONTROL
02020 - 7
rate of stormwater runoff for the stated frequency storm of 24-hour duration in accordamce
with the standards and criteria outlined in the regulations.
B. Narrative:
1. Project description:
This project is involves the construction of a new entrance to the Miller School in western
Albemarle County. 'this project is on a large tract of larnd in the Samuel Miller District
described as T iMP 72-32. Approximately 6.92 acres will be disturbed.
2. ExistitE site conditions
The existing topography for the proposed road varies throughout the project. There is an
abandoned roadbed from the proposed entrance to the approximately station 17+00 where it
disappears into an open field. Up to station 17+00 the area has well established deciduous
canopy trees, understory trees and ground vegetation on either side of the roadbed. The
terrain gently slopes within this area and minimizes contact with critical slopes. Beyond
station 17+00 the land is more open with scattered trees on moderate slopes. The drainage
basin is bowl shaped and drains to an existing small pond in front of the campus.
3. Adjacent areas:
The E & S manual requests this section to describe adjacent areas which might be affected
by this land disturbance project. 'There should not be any effect oft adjoining properties as
the Miller School e t and encompasses hundreds of acres. "tins being said 1 moo property is so vas
P P Y P g
runoff' front this project will traverse a short reach of stream prior to entering the Mechum's
River. It is still important to minimize the stream impact.
4. Off -site areas:
'Phis plan d n I ill quantities of soil or whether a waste or borrow site is
ply r does not address cut and f 1
needed. When known, it must have an approved soil. erosion control plain for that
jurisdiction.
fit no case shall the contractor haul material to or from an off -site area that does not
already have it soil erosion control plan approved by the Local Program Administrator.
5. Soil description:
The soils that may be found at this site are described below. Additional information of these
soils cart be fount in the "Soil Survey of Albemarle County, Virginia" published by the
USDA — Soil Conservation Service.
27B — Elioak Loam, 2-7% slopes. 'Phis deep, gently sloping, well drained soil is on broad to
er is dark brown and reddish brown
the surface la narrow convex ridge tops. Generally, y
loam about 8 inches thick The subsoil is about 41 inches thick. The upper part is yellowish
red silty clay loam and red silty clayand red silty clay loam and silt loath in the lower part.
SOIL EROSION CONTROL 02020 - 4
The seed shall be covered with an appropriate amount and type Of mulch in accordance with
section 3.35 of the handbook. Straw or hay mulch shall be applied at it rate of 1.5 to 2 tons
per acre. Please refer to the handbook for proper application rates if other types of mulches
tare used. A final sealant tack coat shall be sprayed over the mulch to deter dispersion. In all
seeding operations, seed, fertilizer and lime will be applied prior to mulching. Permanent
vegetation shall not be considered established until it ground cover is achieved that, in the
opinion of the local program administrator or his designated agent, is uniform, mature
enough to survive and will inhibit erosion.
Straw mulching is probably the best way to protect the soil and contain moisture within
the seedbed on fairly level areas. To stabilize the straw on the slopes or in open areas that
may blow use a jute mesh or matting.
Temporary: Temporary seeding shall be applied to reduce erosion and sedimentation by
stabilizing disturbed areas that will not be brought to final grade for a period of more than
30 clays. 'Ihese areas may include denuded areas, soil stockpiles, (likes, dams, and sides of
sediment basins and temporary road banks. A permanent vegetative cover shall be applied
to areas that will be left dormant for a period of more than 1 year. Seedbeds shall be
properly prepared and quality seed shall be used. Tine soil to be seeded shall be loosened by
discing, raking or harrowing. It shall not be compacted, crusted or hard.
If the area to be seeded will be left undisturbed for more than 1 year follow the directions
above for establishing permanent vegetation.
9. Stormwater Considerations:
Stormwater quality measures are not required as the amount of impervious cover on this
tract of land is less than 16%. The quantity of the storm water runoff will increase slightly
due to the increase in impervious road cover. However, an equal or greater amount of
existing impervious areas are being converted to grass.
10. Maintenance and Inspections:
In general, all erosion and sediment control measures will be checked weekly and after
every rainfall. The following items will be checked it particular:
it. 'Ilse sediment traps will be checked regularly for sediment cleanout. As a minimum, the
traps shall be cleaned out when they it half full of sediment.
b. Tine gravel outlets will be checked regularly for sediment buildup that will prevent
drainage. If the gravel is clogged by sediment, it shall be removed and cleaned or
replaced.
c. The seeded areas will be checked regularly to ensure that a good stand is maintained.
Areas should be fertilized and reseeded as needed.
SOIL EROSION CONTROL 02020 - 8
DATE
February 6, 2012
REVISIONS
April 30, 2012
November 30, 2012
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BRIAN P. SMITH
CERTIFICATE No.
.off 14511
��SSI�NAL El��'ti.
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SCALE
N.T.S.
RIAN P. SMITH, PE
IVIL ENGINEERING, INC.
(GOLF CWME BMW
M BM09 - LaD FLMEMM
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
DWG. NAME
Miller School 2.pro
SHEET
C7,4�
�i1E�lRM `1��E�- S�-0F PEE \�1f --
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SNF4�,5T�RM KtRE \ ' \ \ \ \ '''fO�AL=1 440-acres\N \ \
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N W STORM PIPE— — — \ / - i' //
� I STA 1 +40.4
/ / /� / , p
���/D_57,.58 acreTC
s
DATE
April 13, 2011
REVISIONS
February 6, 2012
April 30, 2012
November 30, 2012
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U BRIAN P. SMITH y
CERTIFICATE No.
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��SSI�NAL Ely�1
ZIAN P. SMITH, PE
A ENGINEERING, INC,
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rm DoW - U90 FLUNK a
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
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DWG. NAME
Miller School 2.pro
SHEET
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% 2
PRE C STRUCTION D.A.-
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/ POST CONSTRUCTION D.A.=
/654�2.9 SQ FT 5/1.50 ACRES)
ist tennis courts /
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-'SILL TRAP #3
ONSTIUC FIQN 1:A.=
44082.9-SQ FT (1.�1 AC�EST
POST -CONSTRUCTION[ D.A.- \ \
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SILT TRAP #2
LARGER D.A. IS
PRE -CONSTRUCTION D.A.= / —
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LITQITS DISTUF�NCE \ / /
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TH GRAD RINC� FO THE�TRAVELWAY FROM STA-,-]1 TO A 17+OQ CANNOT \ \ LARGER D.A. IS / / �i'
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_XSEE DETAILS
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XR &� ` / / / / / \ / 102226.4 SQ FY(2.35 A/pRES)
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READY TO APPLY ASPHALT PINNING TO THE
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DATE
April 13, 2011
REVISIONS
February 6, 2012
April 30, 2012
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CERTIFICATE No.
.off 14511
O
�ks`910NAL F,11�1
BRIAN P. SMITH, PE
CIVIL ENGINEERING, INC.
ONE DEOHN - WD FLM90
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
09-011-00
DWG. NAME
Miller School 2.pro
SHEEP
C8, I
DATE
April 13, 2011
REVISIONS
February 6, 2012
April 30, 2012
November 30, 2012
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CERTIFICATE No.
.d� 145g1 w�
04
�I0NAL
RIAN P. SMITH, PE
IVIL ENGINEERING, INC,
GOLF COURSE DESIGN
:DESIGN LAND PLANNING
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
DWG. NAME
Miller School 2.pro
SHEET
C910
NEW WEST BIO-FILTER
18 ' WIDE, 100 '
LONG
(SEE DETAILS
C9.2)
TRAP. WEIR THROUGH BERM
2' WIDE BASE, 2'
DEEP
CLASS I RIP -RAP
WITH FILTER FABRIC
BASE ELEV=654.00
2:1 SIDE SLOPES
6" PERFORATED PVC PIPE
4' WIDE BERM (HATCHED AREA)
TOP ELEV=656.00
6" NON -PERFORATED PVC PIPE
L=43 '; INV . IN=649.50; INV . OUT=648.50
SLOPE=2.32%
BIO-FILTERS LANDSCAPE SCHEDULE
BIO-FILTER LANDSCAPING REQUIREMENTS
1,000 TREES AND SHRUBS PER ACRE
EAST BIO-FILTER
(1,000 / 43,560) x 1,050 SF = 24
17 shrubs and 7 trees (2.4 to I ratio)
WEST BIO-FILTER x
(1,000 / 43,560) x 1,800 SF = 41
29 shrubs and 12 trees (2.4 to I ratio)
TREES
BOTANICAL NAME COMMON NAME SIZE REMARKS
EAST WEST
QUANT.QUANT. SYMBOL
Juniperus virginiona
Eastern red cedar
5-4' HEIGHT
E34E3, OAK MULGH BASE
3
4
TI
Magnolla virginiana
Sweetbay magnolia
6--I' HEIGHT
E34E3, OAK MULCH BASE
2
4
T2
G2uercus phellos
1111ow Oak
2" cal.
B415, OAK MULGH BASE
2
4
T3
TOTALS = 7 12
SHRUBS
BOTANICAL NAME
COMMON NAME
SIZE
REMARKS QEAST.QWEST.
SYMBOL
Hydrangea orborescens
Wild hydrangea
15"-lb"
OAK MULGH BASE 6 10
51
Hamamelis vir iniana
Witch -hazel
3-4'
OAK MULCH BASE 6 10
52
680
I
Viburnum prunifolium
Black-hakq viburnum
15"-lb"
OAK MULCH BASE 5 Cl
53
-NEW- _STORMWA-TER-MANAGEMENT AC ESS EASEMENT
I /
ITnI
650 / �// r //52
/ — —
■ 5152 NE EAST -BIO FILTER
Tr _ / iQ, WIDE,/ 105 ' LQNG
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66 5 53 T3 51 " 51 T2
TI 5152��
IX
T3 515 PEF ORATED PV /PIPE
53 /
\ ` _ _ — / / / , Ica . 4� I / 4 ' WIDE/BERM (MATCHED AREA)
/ —T3 — — ...... -� 6 / / / / TOP �LEV=656 .QO
TR�P . WEIR /THROUGH B
DiTERM /
2 WIDE BASE, 2 P
WASS I RIP -RAP TH FILT�6 FABRIC
"BASE ELFV=654.00/
' i \ ♦ 6g� \ / / / / 2:1 SIPE SLOPE
— —/ / 6 NON-PERF RATED PV /PIPE /
` — + �,5 • — ..::.. / / / / // / L=/ INVy IN=649.59; INV. OUT=648.50; SLOPE=1
iGJ" — • LI=' ~ — — I %\ / H� / / / NEW CLAdS I STONE CHANNELWIT
/IC
660 / / // // // THROUGH GHLTEE BA0 FILTER
' \�� 2''WIDE BASE,/ 1' DEEP
-21 SIDE SLOPES
WITH FILTER'FABRIC /
�� ■ / / / TOTAL LH=55'
�'
NEW STORM STRUCTURE
(SEE DETAILS C9.2)
TOTALS = 17 2ci
DATE
April 15, 2013
REVISIONS
May 6, 2013
May 30, 2013
June 10, 2013
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BRIAN P. SMITH
CERTIFICATE No.
.d� 14511 ��
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�kS`SIONAL Ely�1
BRIAN P. SMITH, PE
CIVIL ENGINEERING, INC.
gm BMW - LaD p affma
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
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' 09-011-00
DWG. NAME
Miller School 2.pro
SHEET
C911
DATE
April 15, 2013
REVISIONS
May 30, 2013
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BRIAN P. SMffH
CERTIFICATE No.
.off 14591 ��
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��SSI0NAL se
RIAN P. SMITH, PE
IVIL ENGINEERING, INC.
WO Maf mma
4E BMW - WD OWEN@
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
DWG. NAME
Miller School 2,pro
SHEET
C9,2
DATE
April 30, 2012
REVISIONS
November 30, 2012
January 23, 2013
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BRAN P. SMffH y
CERTIFICATE No.
.off 14511 p
RIAN P. SMITH, PE
VIL ENGINEERING, INC,
9@W c ° m DC 00H
M BMWoLaDFLUKE@
4835 Three Chopt Road
Troy, VA 22974
434.296.3644
bpspe@embargmail.com
JOB NUMBER
09-011-00
DWG. NAME
Miller School 2.pro
SHEEP
C1010
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