HomeMy WebLinkAbout812 Route 28 As-Built PlanDesign Calculations - STORMWATER DRAIN FOR LAWN
Surface Area of LAWN :2500 sq. ft
25 YEAR STORM DESIGN FLOW
PERCOLATION RATE - 2 Minutes per Inch
STORM WATER ABSORPTION AREA: Using percolation rate of 2 min./inch
Bottom Area: 2 gal/sq. ft. x 44 sq. ft. = 88 gallons
Sidewall Area: 2 gal./sq. ft. x 10 sq. ft. = 20 gallons
Providing: = 108 gallons in 2 Min
Providing: = 3240 gallons In 1 Hour
25 YEAR STORM DESIGN FLOW = 4,675 GAL in 24 HOURS/2500 SQ FT LAW
Use: (2) PRECAST 2.5' DIAM. DRYWELL HAVING A 4' EFFECTIVE DEPTH,
TO BE USED WITH 2' OF WASHED STONE ALL AROUND
X
PRIVATE DWELLING
O
PRIVATE DWELLING i
A
A
Existing 14" Soil Berml i 1(
' 01.87 �.� \1
1
99. ` A
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1� X 1.81 �x 1
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98.76- \`\.
Existing 14" Soil Berm
8" Tall Timber Retaining
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1 , 111 A/1
X �'
00.11
X 1181.13
#812
ASPHALT ALONG SIDE OF GARAGE WAS REMOVED
2 FEET FROM SIDE OF GARAGE AND SOIL WAS REMOVED
TO ALLOW 10 INCH MINIMUM FOUNDATION TO BE EXPOSED
PER MA BUILDING CODE.
FENCING WAS INSTALLED TO MAINTAIN PARKING
AND TO PREVENT INJURY TO OCCUPANTS
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X 60.19 . �A
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r
rn
100.19 \\`4
X
a
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1 0.09 O
6 UNfT
OWNER OCCUPIED
GUEST HOUSE
X TOF=ELEV 101.
Drywell for
Lawn Runoff?
nnx
99.25
/
/(00.91 `
/I
\
01 100.72
100 X 99.41
3 99.5 \
X 1 EXIST.
Drywell for X 99 \
Downspouts
/ XJ99.55
100. h
i NA/ XJ9 .35
TERMITE OF CAPE COD
X
98.29 ;
, .50
/ / / -c 99.18
i O
X
:
,''99.10
J-/
0 20 40 50
SCALE: 1 "=20' ,
TYPICAL DRY WELL FOR DOWN SPOUTS
2'-6' DIA
RAN VEw
W MSPEMN COVER
NOTES:
1. CONCRETE: 4.OW PST YMMN AFTER 28 11M
2. CAPAWY MCRFASES M MCREMENTS OF 16D GALLONS
FOR EVE" S SECTION ADM,
3. Bandl PLATES AWLAME
4. ALSO AVAILABLE IN RHE PIECE
NOTE: 2 PERCENT GRADE TO BE MAINTAINED FROM
BUILDING TO SIDEWALK TO ALLOW FOR RAIN RUNOFF TO
TO TRAVEL TO DRAIN AND ALLOW FOR LAWN ABSORBTION
CONSTRUCTION NOTES
1. LAWN AREA FROM END OF SEPTIC TANK TO SOUTHWEST CORNER OF LOT
AND TO SOUTHEAST CORNER OF LOT WAS EXCAVATED AND ASPHALT
FROM FORMER PARKING LOT WAS REMOVED.
2. GRADE IN THIS AREA WAS LOWERED TO ELEVATION 99.50
LOAM. SEED AND LANDSCAPE PLANTINGS WERE REPLANTED.
3. DRAINAGE BASIN AND GRATE WAS INSTALLED IN
SOUTHWEST CORNER OF PROPERTY AT ELEVATION 99.00
TO ENSURE THAT WATER WILL BE COLLECTED ON SITE FROM LOWERED GRADE
4. 8" TIMBER RETAINING WALL WAS CONSTRUCTED ALONG
WEST LOT LINE TO RETAIN REMAINING GRADE TO ENSURE WATER RUNOFF
WILL NOT IMPACT ABUTTER -TERMITE OF CAPE COD
5. EXISTING SUBSURFACE ELECTRIC UNE WAS EXCAVATED AND VERIFIED TO BE
24 INCHES BELOW GRADE
PLAN REF.:
BU:LD[:e'G DEPT
NOTE:
THE PROPERTY LINES ARE APPROXIMATE AND
ARE COMPILED FROM A SURVEYED PLAN BY EAGLE SURVEYING, INC.
ENTITLED "PLOT PLAN IN YARMOUTH, MA OF #812 ROUTE 28,
DATED - MARCH 15, 2007
AND IS NOT INTENDED TO BE A SURVEY PLOT PLAN
R SHOULD BE USED FOR NO PURPOSE OTHER THAN
THE TOPOGRAPHY MODIFICATION AND DRY WELL INSTALLATION.
LEGEND
104X1
4' MA RLET
SPOT GRADE
DENOTES EXISTING
X 104.46
SPOT GRADE
4' 3.75
\
O O O
3.25'
ORAAH HOLES 4' TO 1
1/2' OM TAPER
97- - - - - -97
SM" VIEW
NOTE: 2 PERCENT GRADE TO BE MAINTAINED FROM
BUILDING TO SIDEWALK TO ALLOW FOR RAIN RUNOFF TO
TO TRAVEL TO DRAIN AND ALLOW FOR LAWN ABSORBTION
CONSTRUCTION NOTES
1. LAWN AREA FROM END OF SEPTIC TANK TO SOUTHWEST CORNER OF LOT
AND TO SOUTHEAST CORNER OF LOT WAS EXCAVATED AND ASPHALT
FROM FORMER PARKING LOT WAS REMOVED.
2. GRADE IN THIS AREA WAS LOWERED TO ELEVATION 99.50
LOAM. SEED AND LANDSCAPE PLANTINGS WERE REPLANTED.
3. DRAINAGE BASIN AND GRATE WAS INSTALLED IN
SOUTHWEST CORNER OF PROPERTY AT ELEVATION 99.00
TO ENSURE THAT WATER WILL BE COLLECTED ON SITE FROM LOWERED GRADE
4. 8" TIMBER RETAINING WALL WAS CONSTRUCTED ALONG
WEST LOT LINE TO RETAIN REMAINING GRADE TO ENSURE WATER RUNOFF
WILL NOT IMPACT ABUTTER -TERMITE OF CAPE COD
5. EXISTING SUBSURFACE ELECTRIC UNE WAS EXCAVATED AND VERIFIED TO BE
24 INCHES BELOW GRADE
PLAN REF.:
BU:LD[:e'G DEPT
NOTE:
THE PROPERTY LINES ARE APPROXIMATE AND
ARE COMPILED FROM A SURVEYED PLAN BY EAGLE SURVEYING, INC.
ENTITLED "PLOT PLAN IN YARMOUTH, MA OF #812 ROUTE 28,
DATED - MARCH 15, 2007
AND IS NOT INTENDED TO BE A SURVEY PLOT PLAN
R SHOULD BE USED FOR NO PURPOSE OTHER THAN
THE TOPOGRAPHY MODIFICATION AND DRY WELL INSTALLATION.
LEGEND
104X1
DENOTES PROPOSED
SPOT GRADE
DENOTES EXISTING
X 104.46
SPOT GRADE
PL
PROPERTY LINE
PROPOSED CONTOUR
97- - - - - -97
EXISTING CONTOUR
DEEP TEST HOLE &
PERCOLATION TEST LOCATION
AS -BUILT PLAN
IN SOUTH YARMOUTH, MASSACHUSETTS
OWNED BY
ROSEANNA NIKOLAIDIS RE TR.
AT
812 ROUTE 28
SOUTH YARMOUTH, MA
�H OF -Ss q. PREP/
RED BY:
:„ N ISN CARNEY E. SHA Y
S NVIRONMENTAL SERVICES, INC.
RF T18 85 ASHUMET ROAD
ASHPEE, MA 02649
_ hI 16 TEL/FAX : 508-539-7966
SCALE: 1"=20' DRAWN BY: CES DATE: APRIL 5, 2009
PROJECT- 812 RT 28 FILENAME: 812 RT 28 SHEET 1 OF 1