HomeMy WebLinkAboutSUPERCEDED-24IWC11-375 Maple Ave - Site Plan 12-16-202424'±
20'
246
248250
250
248
246
244
242
240
23
8
236234 234
236238
240
242
252
252 252252250250248
246244
246244242240
238
236
234
232
230
228
22
0
222
224
226
228 2182162
1
2
210
210
220
220218216
228
226
224
222
220
FLOOD ZONE AE
(FROM FIRM PANEL 09011C0334G 7/18/2011)
REGULATORY FLOODWAY
TP 1
TP 2
TP 8
TP 7
TP 3
TP 6
TP 4
TP 9
24'±
307 (HG D)
URBAN LAND
34B (HG A)
MERRIMAC FINE SANDY LOAM
TEST PIT DATA
TEST PITS EXCAVATED BY P&H CONSTRUCTION
AS WITNESSED BY CLA ENGINEERS (D. Hayward & B. Russo)
07/18/2024.
TP-1
Total Depth = 50"
0 - 15" Topsoil: Very dark brown, organic loam
15" - 46" Subsoil: Light gray brown loamy sand
46" - 50"Brown sand and gravel
Groundwater @ 39" (Elev.=230.3)
No ledge
Mottles @ 30" (Elev.=231.0)
TP-2
Total Depth = 87"
0 - 35" Wood chips
35" - 45" Topsoil:
45" - 73"Subsoil: Light brown-gray-green silt
73" - 83"Yellow brown fine sandy loam
83" - 87"Brown sand and gravel with pebbles
and cobbles with trace silt
Groundwater at 76" (Elev.=230.9)
No ledge
No Mottles
TP-3 (Sample taken from 25" - 73")
Total Depth = 73"
0" to 7" Topsoil: Brown fine sandy loam
7" to 25" Subsoil: Yellow brown fine sandy loam with cobbles and stones
25" to 73"Light brown, medium to coarse sand with gravel, cobbles and stones.
Firm in place.
No Groundwater
No mottles
No Ledge
TP-4
Total Depth = 51"
0" to 13" Topsoil: Dark brown silty loam
13" to 26" Subsoil: Light brown silty loam
26" to 35"Dark yellow brown sand and gravel with trace silt
35" to 51"Yellow brown coarse sand and gravel
No Groundwater
No Ledge
Mottles @ 22" (Elev. 235.3)
TP-5 - Not performed
TP-6 (Sample taken from 8" - 22")
Total Depth = 66" (Firm at bottom)
0"- 8" Topsoil: Brown silty loam
8" - 22" Subsoil: Yellow brown fine sandy loam with gravel
22" - 42" Yellow brown coarse sand and gravel with cobbles
Firm in place. Manganese staining.
42" to 66"Light brown medium sand and gravel and stones.
Groundwater @ 63" (Elev.=230.57)
No ledge
Mottles @ 33" (Elev.=233.07)
TP-7
Total Depth = 85"
0 "- 9"Topsoil: Dark brown sandy loam
9" - 21"Subsoil: Brown fine sandy loam
21" - 85"Light brown sand and gravel with cobbles and stones
(46" Manganese staining - Dense)
No Groundwater
No ledge
No Mottles
TP-8 (Sample taken at 46" - 60")
Total Depth = 86"
0 "- 16" Topsoil: Fill. Dark brown, light brown loamy sand
16" - 26"Original topsoil: Dark brown silty loam
26" - 46"Yellow brown sandy loam with cobbles and stones
46" - 60"Strong brown, light brown very fine sand
60" - 86"Gray, light brown sand and gravel with cobbles and stone
No Groundwater
No ledge
Mottles at 36" (Elev.=235.17)
TP-9 (Sample taken from 16" to 45")
Total Depth = 62"
0 "- 16" Topsoil: Very dark brown, fine sandy loam
16" - 45"Subsoil: Yellow brown fine sandy loam with cobbles and stones
45" - 62"Gray brown coarse sand and gravel with cobbles
Groundwater at 45" (Elev.=229.4)
No ledge
Mottles at 28" (Elev.=230.8)
NRCS SOIL BOUNDARY
SOIL SYMBOL (HYDROLOGICAL GROUP)
SOIL DESCRIPTION
LEGEND
30'
15
15
31
R =5 0 'R =5'
R=5'R=40'R=4 0 'R=4
0'
R =6'30'
30'
24'±
240
238
242
244
238
238
236
2
3
4 23223022822
6
240
242
242
236
236
23623423824023
8
236
DD
224
222
220
PROPOSED DEVELOPMENT
PROVIDE NEW BITUMINOUS
CONCRETE PAVEMENT SECTION.
(TYP. SHADED AREA)
PROVIDE TOPSOIL & SEED
OVER DISTURBED AREAS
(TYP.)
PROVIDE 12' x 60' PAINTED
TRAILER PARKING SPACES
PROVIDE BIT. CONC. CURB
(DRIVEWAY CURB
RETURNS ONLY)
GRASS LINED SWALE
TYP.
(SEE DETAIL)
STORMWATER
BASIN #1
STORMWATER BASIN #2
STOP SIGN
AREA RESERVED FOR
SNOW STORAGE
(4 SPACES)
PROVIDE BIT. CONC. CURB
LIMIT OF GRADING
(TYP.)
MATCH EXISTING
PAVEMENT
REMOVE EXISTING
BUILDING AND WELL
GRASS LINED SWALE
TYP.
(SEE DETAIL)
MATCH EXISTING
PAVEMENT
STOP BAR
ALL DISTURBED AREAS TO BE TREATED WITH
6" OF LOAM AND SEEDED WITH NEW
ENGLAND ROADSIDE MATRIX MIX
(SEE E&S PLAN FOR DETAILS)
BASIN BOTTOM TO BE 6" OF LOAM AND SEEDED
WITH NEW ENGLAND EROSION
CONTROL/RESTORATION MIX FOR MOIST SITES
(SEE E&S PLAN FOR DETAILS)
STONE FILLED
TRENCH
(SEE DETAIL)
FEMA FLOOD ZONE LEGEND
FLOOD ZONE AE
(FROM FIRM PANEL 09011C0334G 7/18/2011)
REGULATORY FLOODWAY
R =5 0 'R =5'
R=5'R=40'R=4 0 'R=4
0'
R =6'240
238
242
244
238
238
236
2
3
4 23223022822
6
240
242
242
236
236
236234238240230
23
8
236
DD
CB 'TYPE C
TF=247.2±
INV OUT=(30" NE)=238.00
5' DMH
TF=238.4±
INV IN=(30" SW)=233.10
INV OUT=(30" NE)=233.00
5' DMH
TF=235.0±
INV IN=(30" SW)=230.00
INV OUT=(30" E)=230.00
165' - 30" CORRUGATED HDPE PIPE
S=2.9%
172' - 30" CORRUGATED HDPE PIPE
S=1.7%
50' - 30" CORRUGATED HDPE PIPE
S=0.0%
234
232
234
232 232
234
234234
246
244
236 236
3.0:1
3.0:1 6.6:13.0:1
3.0:1OUTLET
INV (30" )=230.0
SFSFSFSF
SF SFSFSF SF
6.6:162'
24'±
SEDIMENT FOREBAY 2
BOTT. ELEV. = 231.0
SEDIMENT FOREBAY 1B
BOTT. ELEV. = 231.0
SEDIMENT FOREBAY 1A
BOTT. ELEV. = 231.0
4' WIDE LEVEL SPREADER OUTLET
ELEV. = 234.0
4' WIDE LEVEL SPREADER OUTLET
ELEV. = 234.0
4' WIDE LEVEL SPREADER OUTLET
ELEV. = 234.0
4' WIDE LEVEL SPREADER OUTLET
ELEV. = 233.5
4' WIDE LEVEL SPREADER OUTLET
ELEV. = 233.5
STORMWATER BASIN #1
BOTT. ELEV. = 231.0
STORMWATER BASIN #2
BOTT. ELEV. = 231.0
4' WIDE STONE FILLED GABION BERM
TOP ELEV. = 235.0
4' WIDE STONE FILLED GABION BERM
TOP ELEV. = 235.0
4' WIDE STONE FILLED GABION BERM
TOP ELEV. = 235.0
PROPOSED TREE LINE /
CLEARING LIMITS TO
MIMIC LIMIT OF
DISTURBANCE
(TYP.)
GRASS LINED SWALE
TYP.
(SEE DETAIL)
LIMIT OF GRADING
(TYP.)
GRASS LINED SWALE
TYP.
(SEE DETAIL)
GRADE BREAK
FEMA FLOOD ZONE LEGEND
FLOOD ZONE AE
(FROM FIRM PANEL 09011C0334G 7/18/2011)
REGULATORY FLOODWAY
24'±DD
CB 'TYPE C
TF=247.2±
INV OUT=(30" NE)=238.00
5' DMH
TF=238.4±
INV IN=(30" SW)=233.10
INV OUT=(30" NE)=233.00
5' DMH
TF=235.0±
INV IN=(30" SW)=230.00
INV OUT=(30" E)=230.00
50' - 30" CORRUGATED HDPE PIPE
S=0.0%
OUTLET
30" HDPE FES
ELEV. =230.00
172' - 30" CORRUGATED HDPE PIPE
S=1.7%
165' - 30" CORRUGATED HDPE PIPE
S=2.9%238236240244246
232
SFSFSFSFSF SF
232
235 234
232
234
235
236SFSFSFSFSF
SF SFSF
SF SFSF
SFSF
SF
SF
SF
SF
SF
SF
SF
S
F
TEMPORARY VEGETATIVE COVERSUGGESTED SITE PREPARATION CONSTRUCTION SEQUENCE
SEDIMENT TRAP #1
(BOTT. ELEV. =232.0)
TEMPORARY SEDIMENT TRAP NARRATIVE
LEGEND
APPROXIMATE WATERSHED = 1.57 ACRES
(SEDIMENT TRAP 1)
APPROXIMATE WATERSHED = 1.68 ACRES
(SEDIMENT TRAP 2)
SEDIMENT TRAP #1
(BOTT. ELEV. =232.0)
REQUIRED
AS
STORMWATER MANAGEMENT & POLLUTION PREVENTION PLAN
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