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December 8, 2014 City of Lowell 375 Merrimack Street Lowell, MA 01852 C.A.A.F. Engineering Team:

• Onix Castro - Project Manager

Clay Pit Brook Flooding Analysis & Assumptions

PAWTUCKET BOULEVARDUNNAMED ROAD

MELR

OSE AVEN

UE

LIN

DA

LAN

E

FOR

EST

PAR

K L

AN

E

RO

BIN

LA

NE

SHADOW DRIVE

TOW

ER D

RIVE

VARNUM AVENUE

TOW

NSEN

D AVEN

UE

MALDEN AVENUE

LEXING

TON

AVENU

E

RULE

LAN

E

BED

FOR

D A

VEN

UE

VARNUM AVENUE

CEDAR LANE

MEADOW VIEW DRIVE

LAURIE LANE

MEA

DOW

DR

IVE

JENNIFER ROAD

SHIR

LEY AVENU

E

UNNAMED ROAD

WOODWARD AVENUE

BR

OO

KSID

E STREET

ORCHARD STREET

VARNUM AVENUE

MAGNOLIA STREET

AVALON STREET

VARNUM AVENUE

PAW

TUCK

ET B

OULE

VARD

BROADWAY

STEVENS S

STEVENS STR

EET

GLID

DEN

STREET

MIDDLESEX STREET

VARNUM TERRACE

DUNBAR AVENUE

VARNUM AVENUE

WEST M

EAD

OW

RO

AD BARBARA TERRACE

BARBARA STREET

LA PLUME AVENUE

WES

T

DELAWARE AVENUE

FRECHETTE STREET

STOCKBRIDGE AVENUE

DUNBAR AVENUE

PAWTUCKET DRIVE

PAWTUCKET STREET

BU

RN

SIDE

URSULA STREET

PAW

TUCK

ET B

OULEV

ARD

STARBIRD STREET

PAWTUCKET STREET

PAW

TUCK

ET S

TREE

T

MARGINAL

City of Lowell, MassachusettsClay Pit Brook Area

May 2007

LegendElevation 98.1 (Spring 2007 Flood)to Elevation 98.8 (Spring 2006 Flood)

Normal Water toElevation 98.1 (Spring 2007 Flood) 100-yr Flood Plain

0 100 200 300 400Feet

Merrimack River

Mer

rimac

k Ri

ver

Clay Pit Brook

Normal Water Elevation

Clay Pit Brook

CONFIDENTIAL12/08/14

2

Appendix: (A) History of Clay Pit Brook flooding & Problem Statement. ………………………. Page: 3

• Performed by: - Onix Castro - Project Manager -Edson Francoise- Assistant Civil Engineer • Reviewed by:

- Onix Castro - Project Manager (B) Technical requirements. ……………………………………………………………. Page: 3

• Performed by: -Edson Francoise- Assistant Civil Engineer • Reviewed by:

- Onix Castro - Project Manager (C) Analysis performed & Data Acquired. ………………………...……………………Page: 3-15

• Performed by: - Onix Castro - Project Manager -Vardy Anis - Assistant Civil Engineer -Edson Francoise- Assistant Civil Engineer • Reviewed by:

- Onix Castro - Project Manager

(D) Solution & Assumptions to the problem. .................................................................Page: 16 • Performed by: - Onix Castro - Project Manager -Vardy Anis - Assistant Civil Engineer -Edson Francoise- Assistant Civil Engineer • Reviewed by:

- Onix Castro - Project Manager

(A) History of Clay Pit Brook flooding & Problem Statement:


3

Clay pit Brook is a stream located just 1.4 miles from Lowell, in Middlesex County, in the state of Massachusetts. In addition the two major and well-known rivers, the Merrimack and the Concord, that flow through Lowell, there is a small number of brooks that meander through marshy areas, neighborhoods, and formerly industrialized sections of the city.

The area of Clay Pit Brook has been reported to flood every time a strong storm hits the area. The

residents living in this are think that the five foot-high flashboards that were installed on the Pawtucket Dam back in the 1800’s are ineffective and therefore causing the river to flood into the area. This has been an ongoing problem in Clay Pit Brook and the people living there would like this problem to be resolved. (B) Technical requirements:

During our evaluation of the drainage area along Clay Pit Brook and Flaggy Meadow Brook regarding

the contiguous flooding effects do to the Merrimack River.

1) Determine the effects of the flooding that clay pit brook have been creating.

2) Estimating the rainfall and run-off from the tributary drainage areas

3) Create a 3D model using HEC-RAS

(C)ClayPitBrookAnalysis&DataAcquired:

Inordertodeterminewhatreallyhappensoneverycrosssectionandwheretherainwaterwasaccumulatingat,theprogram“HEC-RAS”wasusedinordertodeterminewhathappensthroughoutthesite.RiverStationsfrom1-12showstheupstreamtodownstreamdatacollectedbyeachriverstationshowingthetablesandgraphonelevationonwhathappensandthefloodsoneachsection.

• RIVERSTATION12


4

Profile QTotalMinChEl

W.S.Elev

E.G.Elev

E.G.Slope VelChnl

FlowArea

TopWidth

CritW.S.

(cfs) (ft) (ft) (ft) (ft/ft) (ft/s) (sqft) (ft) (ft)PF1 5 114 115.28 115.49 0.013751 3.66 1.36 3.11 115.28PF2 15 114 115.74 116.18 0.013909 5.33 2.82 3.29 115.74PF3 20 114 115.92 116.45 0.013933 5.83 3.43 3.37 115.92PF4 30 114 117.44 117.61 0.002148 3.33 9.01 3.98 NAPF5 35 114 118.67 118.76 0.000882 2.46 14.2 4.47 NAPF6 40 114 119.77 119.84 0.000517 2.06 19.37 4.91 NAPF7 45 114 120.79 120.84 0.000358 1.84 24.49 5.13 NAPF8 50 114 121.73 121.78 0.000278 1.7 29.4 5.29 NAPF9 55 114 122.62 122.66 0.000231 1.61 34.17 5.44 NAPF10 60 114 123.46 123.5 0.000201 1.55 38.8 5.61 NAPF11 70 114 125.02 125.05 0.000162 1.46 47.87 6.01 NAPF12 80 114 126.45 126.48 0.000138 1.4 56.99 6.73 NA

CROSSSECTIONVIEW

• RIVERSTATION11


W.S.Elev

E.G.Elev

E.G.Slope VelChnl

FlowArea

TopWidth

CritW.S.

(cfs) (ft) (ft) (ft) (ft/ft) (ft/s) (sqft) (ft) (ft)PF1 5 99 108.06 108.06 0.000008 0.17 29.4 5.74 NAPF2 15 99 113.06 113.06 0.000008 0.21 72.14 10.84 NAPF3 20 99 114.78 114.78 0.000008 0.22 91.84 12.45 NAPF4 30 99 117.56 117.56 0.000007 0.23 132.29 15.67 NAPF5 35 99 118.74 118.74 0.000006 0.23 151.22 16.55 NAPF6 40 99 119.82 119.82 0.000006 0.24 169.58 17.36 NAPF7 45 99 120.82 120.82 0.000006 0.24 187.25 17.75 NAPF8 50 99 121.76 121.76 0.000006 0.25 204.03 18.03 NAPF9 55 99 122.65 122.65 0.000006 0.25 220.11 18.29 NAPF10 60 99 123.48 123.49 0.000005 0.25 235.54 18.55 NAPF11 70 99 125.04 125.04 0.000005 0.26 264.8 19 NA

0 5 10 15 20110

115

120

125

130

135

140

Station (ft)

Ele

vatio

n (ft

)

Legend

EG PF 1

WS PF 1

Crit PF 1

Ground

Bank Sta

.02


5

PF12 80 99 126.47 126.47 0.000005 0.27 291.98 19 NA

CROSSSECTIONVIEW

• RIVERSTATION10


W.S.Elev

E.G.Elev

E.G.Slope VelChnl

FlowArea

TopWidth

CritW.S.

(cfs) (ft) (ft) (ft) (ft/ft) (ft/s) (sqft) (ft) (ft)PF1 5 95 108.06 108.06 0 0.05 95.4 12.84 NAPF2 15 95 113.06 113.06 0.000001 0.09 162.14 13.85 NAPF3 20 95 114.78 114.78 0.000001 0.11 186.2 14.2 NAPF4 30 95 117.56 117.56 0.000001 0.13 226.46 14.76 NAPF5 35 95 118.74 118.74 0.000001 0.14 243.94 15 NAPF6 40 95 119.82 119.82 0.000001 0.15 260.3 15.22 NAPF7 45 95 120.82 120.82 0.000001 0.16 275.69 15.42 NAPF8 50 95 121.76 121.76 0.000002 0.17 290.24 15.61 NAPF9 55 95 122.65 122.65 0.000002 0.18 304.33 16.4 NAPF10 60 95 123.48 123.49 0.000002 0.19 318.35 16.85 NAPF11 70 95 125.04 125.04 0.000002 0.2 344.72 17 NAPF12 80 95 126.47 126.47 0.000002 0.22 369.14 17.15 NA


W.S.Elev

E.G.Elev

E.G.Slope VelChnl

FlowArea

TopWidth

CritW.S.

CROSSSECTIONVIEW

0 5 10 15 2095

100

105

110

115

120

125

Station (ft)

Ele

vatio

n (ft

)

Legend

EG PF 1

WS PF 1

Ground

Bank Sta

.05 .02


6

• RIVERSTATION9


W.S.Elev

E.G.Elev

E.G.Slope VelChnl

FlowArea

TopWidth

CritW.S.

(cfs) (ft) (ft) (ft) (ft/ft) (ft/s) (sqft) (ft) (ft)PF1 5 85 108.06 108.06 0 0.06 81.28 8.79 NAPF2 15 85 113.06 113.06 0.000001 0.11 131.87 10.59 NAPF3 20 85 114.78 114.78 0.000002 0.13 150.25 10.83 NAPF4 30 85 117.56 117.56 0.000002 0.17 180.93 11.23 NAPF5 35 85 118.74 118.74 0.000003 0.18 194.22 11.4 NAPF6 40 85 119.82 119.82 0.000003 0.19 206.64 11.55 NAPF7 45 85 120.82 120.82 0.000003 0.21 218.31 11.67 NAPF8 50 85 121.76 121.76 0.000004 0.22 229.3 11.77 NAPF9 55 85 122.65 122.65 0.000004 0.23 239.77 11.87 NAPF10 60 85 123.48 123.49 0.000004 0.24 249.75 11.96 NAPF11 70 85 125.04 125.04 0.000005 0.26 268.55 13.13 NAPF12 80 85 126.47 126.47 0.000005 0.28 287.5 13.36 NA

CROSSSECTIONVIEW

• RIVERSTATION8


W.S.Elev

E.G.Elev

E.G.Slope VelChnl

FlowArea

TopWidth

CritW.S.

(cfs) (ft) (ft) (ft) (ft/ft) (ft/s) (sqft) (ft) (ft)PF1 5 95 108.06 108.06 0.000038 0.25 19.66 4.01 NAPF2 15 95 113.06 113.06 0.000037 0.35 42.27 4.72 NA

0 5 10 15 2090

100

110

120

130

140

Station (ft)

Ele

vatio

n (ft

)

Legend

EG PF 1

WS PF 1

Ground

Bank Sta

.02

0 5 10 15 2080

90

100

110

120

130

140

150

160

Station (ft)

Ele

vatio

n (ft

)

Legend

EG PF 1

WS PF 1

Ground

Bank Sta

.02


7

PF3 20 95 114.78 114.78 0.00004 0.4 50.43 4.79 NAPF4 30 95 117.56 117.56 0.000042 0.44 67.45 6.67 NAPF5 35 95 118.73 118.74 0.000043 0.46 75.51 7.07 NAPF6 40 95 119.81 119.82 0.000043 0.48 83.37 7.44 NAPF7 45 95 120.82 120.82 0.000043 0.49 90.98 7.72 NAPF8 50 95 121.76 121.76 0.000044 0.51 98.34 7.97 NAPF9 55 95 122.64 122.65 0.000044 0.52 105.5 8.2 NAPF10 60 95 123.48 123.48 0.000044 0.53 112.47 8.43 NAPF11 70 95 125.04 125.04 0.000045 0.56 125.96 9.87 NAPF12 80 95 126.47 126.47 0.000047 0.57 141.11 11.33 NA

CROSSSECTIONVIEW

• RIVERSTATION7


W.S.Elev

E.G.Elev

E.G.Slope VelChnl

FlowArea

TopWidth

CritW.S.

(cfs) (ft) (ft) (ft) (ft/ft) (ft/s) (sqft) (ft) (ft)PF1 5 88 108.06 108.06 0.000001 0.08 60.84 6.31 NAPF2 15 88 113.06 113.06 0.000003 0.16 93.63 6.81 NAPF3 20 88 114.78 114.78 0.000004 0.19 105.45 6.98 NAPF4 30 88 117.56 117.56 0.000005 0.24 125.24 7.26 NAPF5 35 88 118.73 118.73 0.000006 0.26 133.83 7.37 NAPF6 40 88 119.82 119.82 0.000007 0.28 141.88 7.48 NAPF7 45 88 120.82 120.82 0.000007 0.3 149.44 7.58 NAPF8 50 88 121.76 121.76 0.000008 0.32 156.6 7.68 NAPF9 55 88 122.64 122.65 0.000009 0.34 163.43 7.76 NAPF10 60 88 123.48 123.48 0.000009 0.35 169.97 7.85 NAPF11 70 88 125.04 125.04 0.000011 0.38 182.32 8 NAPF12 80 88 126.47 126.47 0.000012 0.41 193.86 8.15 NA

CROSSSECTIONVIEW

0 5 10 15 2090

100

110

120

130

140

150

Station (ft)

Ele

vatio

n (ft

)

Legend

EG PF 1

WS PF 1

Ground

Bank Sta

.02


8

• RIVERSTATION6


W.S.Elev

E.G.Elev

E.G.Slope VelChnl

FlowArea

TopWidth

CritW.S.

(cfs) (ft) (ft) (ft) (ft/ft) (ft/s) (sqft) (ft) (ft)PF1 5 90 108.06 108.06 0 0.07 72.81 6.61 NAPF2 15 90 113.06 113.06 0.000001 0.14 108.38 7.61 NAPF3 20 90 114.78 114.78 0.000002 0.16 121.73 7.96 NAPF4 30 90 117.56 117.56 0.000003 0.21 144.3 8.26 NAPF5 35 90 118.73 118.73 0.000003 0.23 154.07 8.37 NAPF6 40 90 119.82 119.82 0.000003 0.25 163.19 8.48 NAPF7 45 90 120.82 120.82 0.000004 0.26 171.76 8.58 NAPF8 50 90 121.76 121.76 0.000004 0.28 179.86 8.68 NAPF9 55 90 122.64 122.65 0.000004 0.29 187.58 8.76 NAPF10 60 90 123.48 123.48 0.000005 0.31 194.95 8.85 NAPF11 70 90 125.04 125.04 0.000005 0.34 208.86 9 NAPF12 80 90 126.47 126.47 0.000006 0.36 221.84 9.15 NA

CROSSSECTIONVIEW

• RIVERSTATION5


W.S.Elev

E.G.Elev

E.G.Slope VelChnl

FlowArea

TopWidth

CritW.S.

(cfs) (ft) (ft) (ft) (ft/ft) (ft/s) (sqft) (ft) (ft)PF1 5 97 108.06 108.06 0.000016 0.26 19.06 2.61 NAPF2 15 97 113.06 113.06 0.000034 0.44 34.15 3.31 NA

0 5 10 15 2080

100

120

140

160

180

Station (ft)

Ele

vatio

n (ft

)

Legend

EG PF 1

WS PF 1

Ground

Bank Sta

.02

0 5 10 15 2080

100

120

140

160

180

Station (ft)

Ele

vatio

n (ft

)

Legend

EG PF 1

WS PF 1

Ground

Bank Sta

.02


9

PF3 20 97 114.77 114.78 0.000041 0.5 39.96 3.48 NAPF4 30 97 117.55 117.56 0.000052 0.6 50.01 3.76 NAPF5 35 97 118.73 118.73 0.000057 0.64 54.49 3.87 NAPF6 40 97 119.81 119.82 0.000062 0.68 58.74 3.98 NAPF7 45 97 120.81 120.82 0.000067 0.72 62.79 4.08 NAPF8 50 97 121.75 121.76 0.000071 0.75 66.66 4.18 NAPF9 55 97 122.64 122.64 0.000075 0.78 70.39 4.26 NAPF10 60 97 123.47 123.48 0.000079 0.81 73.99 4.35 NAPF11 70 97 125.03 125.04 0.000086 0.87 80.88 4.5 NAPF12 80 97 126.46 126.47 0.000092 0.92 87.42 4.65 NA

CROSSSECTIONVIEW

• RIVERSTATION4


W.S.Elev

E.G.Elev

E.G.Slope VelChnl

FlowArea

TopWidth

CritW.S.

(cfs) (ft) (ft) (ft) (ft/ft) (ft/s) (sqft) (ft) (ft)PF1 5 97 108.06 108.06 0.000003 0.14 36.48 5.84 NAPF2 15 97 113.06 113.06 0.000007 0.22 69.34 7.24 NAPF3 20 97 114.78 114.78 0.000008 0.24 82.15 7.69 NAPF4 30 97 117.56 117.56 0.00001 0.29 104.83 8.64 NAPF5 35 97 118.73 118.73 0.00001 0.3 115.23 9.06 NAPF6 40 97 119.81 119.82 0.000011 0.32 125.23 9.43 NAPF7 45 97 120.82 120.82 0.000011 0.33 134.89 9.79 NAPF8 50 97 121.76 121.76 0.000012 0.35 144.22 10.11 NAPF9 55 97 122.64 122.64 0.000012 0.36 153.3 10.42 NAPF10 60 97 123.48 123.48 0.000013 0.37 162.16 10.72 NAPF11 70 97 125.04 125.04 0.000014 0.39 179.27 11.26 NAPF12 80 97 126.46 126.47 0.000014 0.41 195.73 11.76 NA

0 5 10 15 2080

100

120

140

160

180

200

220

Station (ft)

Ele

vatio

n (ft

)

Legend

EG PF 1

WS PF 1

Ground

Bank Sta

.02


10

CROSSSECTIONVIEW

• RIVERSTATION3


W.S.Elev

E.G.Elev

E.G.Slope VelChnl

FlowArea

TopWidth

CritW.S.

(cfs) (ft) (ft) (ft) (ft/ft) (ft/s) (sqft) (ft) (ft)PF1 5 96 108.06 108.06 0 0.01 765.74 82.69 NAPF2 15 96 113.06 113.06 0 0.01 1183.38 84.35 NAPF3 20 96 114.78 114.78 0 0.02 1328.58 84.93 NAPF4 30 96 117.56 117.56 0 0.02 1577.83 92.19 NAPF5 35 96 118.73 118.73 0 0.02 1686.34 92.58 NAPF6 40 96 119.81 119.81 0 0.02 1786.76 92.94 NAPF7 45 96 120.82 120.82 0 0.02 1880.19 93.08 NAPF8 50 96 121.76 121.76 0 0.03 1967.53 93.18 NAPF9 55 96 122.64 122.64 0 0.03 2050.02 93.26 NAPF10 60 96 123.48 123.48 0 0.03 2128.18 93.35 NAPF11 70 96 125.04 125.04 0 0.03 2273.68 93.5 NAPF12 80 96 126.47 126.47 0 0.03 2407.48 93.65 NA

CROSSSECTIONVIEW

• RIVERSTATION2

Profile QTotal MinCh W.S. E.G. E.G. VelChnl Flow Top Crit

0 5 10 15 2080

100

120

140

160

180

200

Station (ft)

Ele

vatio

n (ft

)

Legend

EG PF 1

WS PF 1

Ground

Bank Sta

.02

0 20 40 60 80 10080

100

120

140

160

180

200

Station (ft)

Ele

vatio

n (ft

)

Legend

WS PF 1

EG PF 1

Ground

Bank Sta

.02


11

El Elev Elev Slope Area Width W.S.

(cfs) (ft) (ft) (ft) (ft/ft) (ft/s) (sqft) (ft) (ft)PF1 5 97 108.06 108.06 0 0.06 87.76 11.16 NAPF2 15 97 113.06 113.06 0 0.1 145.5 11.93 NAPF3 20 97 114.78 114.78 0 0.12 166.2 12.2 NAPF4 30 97 117.56 117.56 0.000001 0.15 200.7 12.62 NAPF5 35 97 118.73 118.73 0.000001 0.16 215.63 12.8 NAPF6 40 97 119.81 119.81 0.000001 0.17 229.59 12.97 NAPF7 45 97 120.82 120.82 0.000001 0.19 242.64 13 NAPF8 50 97 121.76 121.76 0.000001 0.2 254.83 13 NAPF9 55 97 122.64 122.64 0.000001 0.21 266.54 13.64 NAPF10 60 97 123.48 123.48 0.000001 0.22 278.2 14.01 NAPF11 70 97 125.04 125.04 0.000001 0.23 300.06 14.06 NAPF12 80 97 126.47 126.47 0.000001 0.25 320.19 14.1 NA

CROSSSECTIONVIEW

• RIVERSTATION1


W.S.Elev

E.G.Elev

E.G.Slope VelChnl

FlowArea

TopWidth

CritW.S.

(cfs) (ft) (ft) (ft) (ft/ft) (ft/s) (sqft) (ft) (ft)PF1 5 99 106.09 107.88 1.992069 10.75 0.47 0.13 106.09PF2 15 99 110 112.78 1.721249 13.39 1.12 0.2 110PF3 20 99 111.34 114.46 1.659805 14.19 1.41 0.23 111.34PF4 30 99 113.49 117.19 1.582582 15.43 1.94 0.27 113.49PF5 35 99 114.46 118.34 1.523641 15.81 2.21 0.29 114.46PF6 40 99 115.31 119.41 1.496647 16.24 2.46 0.3 115.31PF7 45 99 116.1 120.39 1.474534 16.63 2.71 0.32 116.1PF8 50 99 116.84 121.31 1.448057 16.96 2.95 0.33 116.84PF9 55 99 117.53 122.18 1.432118 17.29 3.18 0.34 117.53PF10 60 99 118.19 123 1.41713 17.61 3.41 0.36 118.19PF11 70 99 119.4 124.52 1.38972 18.16 3.85 0.38 119.4PF12 80 99 120.51 125.92 1.369641 18.68 4.28 0.4 120.51

0 5 10 15 2080

100

120

140

160

180

200

Station (ft)

Ele

vatio

n (ft

)

Legend

EG PF 1

WS PF 1

Ground

Bank Sta

.02


12

CROSSSECTIONVIEW

• PROFILESVIEW

• GENERALPROFILEPLOT

• 3-DMODEL

0 2 4 6 8 10 1250

100

150

200

250

300

Station (ft)

Ele

vatio

n (ft

)

Legend

EG PF 1

WS PF 1

Crit PF 1

Ground

Bank Sta

.02

0 10 20 30 40 50 60 7085

90

95

100

105

110

115

120

Clay Pit Brook Plan: XX 12/5/2014

Main Channel Distance (ft)

Ele

vatio

n (ft

)

Legend

EG PF 2

WS PF 2

Crit PF 2

Ground

Merrimak MR-reach

0 10 20 30 40 50 60 700

2

4

6

8

10

12


Main Channel Distance (ft)

Vel

Lef

t (ft/

s), V

el C

hnl (

ft/s)

, Vel

Rig

ht (f

t/s) Legend

Vel Chnl PF 1

Merrimak MR-reach


13

Thisisathreedimensionalmodelofthedataacquiredfromriverstations1-12showingtheelevationsandthefloodingthroughoutthearea.

10

9

7

6

5

4

3

2


Legend

WS PF 1

Ground

Bank Sta


14

• SoilData

Mapofareashowingthewaterchannel


15

Map of Soil Areas

Middlesex County, Massachusetts (MA017) Map Unit Symbol Map Unit Name Acres in

AOI Percent of AOI

1 Water 338.1 8.8% 2A Pootatuck fine sandy loam, 0 to 3 percent slopes 2.1 0.1% 4A Rippowam fine sandy loam, 0 to 3 percent slopes 1.3 0.0% 6A Scarboro mucky fine sandy loam, 0 to 3 percent slopes 93.4 2.4% 8A Limerick silt loam, 0 to 3 percent slopes 29.1 0.8%


16


AOI Percent of AOI

30B Raynham silt loam, 0 to 5 percent slopes 4.6 0.1% 32B Wareham loamy fine sand, 0 to 5 percent slopes 28.8 0.7% 36A Saco mucky silt loam, 0 to 1 percent slopes 13.6 0.4% 44A Birdsall mucky silt loam, 0 to 1 percent slopes 96.6 2.5% 51A Swansea muck, 0 to 1 percent slopes 50.1 1.3% 52A Freetown muck, 0 to 1 percent slopes 8.3 0.2% 53A Freetown muck, ponded, 0 to 1 percent slopes MLRA 144A 116.7 3.0%

71B Ridgebury fine sandy loam, 3 to 8 percent slopes, extremely stony 40.4 1.1%

73B Whitman fine sandy loam, 0 to 5 percent slopes, extremely stony 37.4 1.0%

97A Suncook loamy sand, 0 to 3 percent slopes 164.1 4.3% 98A Winooski very fine sandy loam, 0 to 3 percent slopes 64.4 1.7% 99A Occum very fine sandy loam, 0 to 3 percent slopes 22.8 0.6%

103B Charlton-Hollis-Rock outcrop complex, 3 to 8 percent slopes 83.8 2.2%

103C Charlton-Hollis-Rock outcrop complex, 8 to 15 percent slopes 89.3 2.3%

104C Hollis-Rock outcrop-Charlton complex, 3 to 15 percent slopes 183.1 4.8%

223A Scio very fine sandy loam, 0 to 3 percent slopes 128.0 3.3% 253B Hinckley loamy sand, 3 to 8 percent slopes 85.4 2.2% 253C Hinckley loamy sand, 8 to 15 percent slopes 25.2 0.7% 253D Hinckley loamy sand, 15 to 25 percent slopes 18.1 0.5% 253E Hinckley loamy sand, 25 to 35 percent slopes 6.1 0.2% 254A Merrimac fine sandy loam, 0 to 3 percent slopes 33.5 0.9% 254B Merrimac fine sandy loam, 3 to 8 percent slopes 89.2 2.3% 255A Windsor loamy sand, 0 to 3 percent slopes 50.1 1.3% 255B Windsor loamy sand, 3 to 8 percent slopes 202.7 5.3% 255C Windsor loamy sand, 8 to 15 percent slopes 26.3 0.7% 256A Deerfield loamy sand, 0 to 3 percent slopes 56.2 1.5% 256B Deerfield loamy sand, 3 to 8 percent slopes 28.2 0.7% 260B Sudbury fine sandy loam, 3 to 8 percent slopes 31.4 0.8% 261A Tisbury silt loam, 0 to 3 percent slopes 6.5 0.2% 261B Tisbury silt loam, 3 to 8 percent slopes 45.7 1.2% 300B Montauk fine sandy loam, 3 to 8 percent slopes 87.8 2.3% 300C Montauk fine sandy loam, 8 to 15 percent slopes 9.3 0.2%


17


AOI Percent of AOI

302B Montauk fine sandy loam, 3 to 8 percent slopes, extremely stony 33.5 0.9%

302C Montauk fine sandy loam, 8 to 15 percent slopes, extremely stony 46.4 1.2%

302D Montauk fine sandy loam, 15 to 25 percent slopes, extremely stony 14.9 0.4%

305B Paxton fine sandy loam, 3 to 8 percent slopes 7.7 0.2% 305C Paxton fine sandy loam, 8 to 15 percent slopes 9.1 0.2%

307D Paxton fine sandy loam, 15 to 25 percent slopes, extremely stony 7.8 0.2%

311B Woodbridge fine sandy loam, 0 to 8 percent slopes, very stony 2.3 0.1%

315B Scituate fine sandy loam, 3 to 8 percent slopes 32.1 0.8%

317B Scituate fine sandy loam, 3 to 8 percent slopes, extremely stony 58.3 1.5%

416C Narragansett silt loam, 8 to 15 percent slopes, very stony 73.0 1.9% 420B Canton fine sandy loam, 3 to 8 percent slopes 82.3 2.1% 420D Canton fine sandy loam, 15 to 25 percent slopes 14.9 0.4%

422B Canton fine sandy loam, 3 to 8 percent slopes, extremely stony 167.6 4.4%

422C Canton fine sandy loam, 8 to 15 percent slopes, extremely stony 125.6 3.3%

422D Canton fine sandy loam, 15 to 25 percent slopes, extremely stony 10.0 0.3%

424B Canton fine sandy loam, 3 to 8 percent slopes, extremely bouldery 43.7 1.1%

602 Urban land 248.1 6.4% 621B Scio-Urban land complex, 0 to 8 percent slopes 87.3 2.3% 626B Merrimac-Urban land complex, 0 to 8 percent slopes 93.2 2.4%

629C Canton-Charlton-Urban land complex, 3 to 15 percent slopes 41.0 1.1%

631C Charlton-Urban land-Hollis complex, 3 to 15 percent slopes, rocky 13.6 0.4%

653 Udorthents, sandy 29.4 0.8% 654 Udorthents, loamy 54.4 1.4% 655 Udorthents, wet substratum 16.6 0.4% 656 Udorthents-Urban land complex 138.8 3.6% Totals for Area of Interest 3,849.3 100.0%


18

Unified Soil Classification

Tables — Unified Soil Classification (Surface) — Summary By Map Unit

Summary by Map Unit — Middlesex County, Massachusetts (MA017)

Map unit symbol Map unit name Rating Acres in

AOI Percent of AOI

1 Water

338.1 8.8% 2A Pootatuck fine sandy loam, 0 to 3 percent slopes ML 2.1 0.1% 4A Rippowam fine sandy loam, 0 to 3 percent slopes ML 1.3 0.0% 6A Scarboro mucky fine sandy loam, 0 to 3 percent slopes PT 93.4 2.4%


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AOI Percent of AOI

8A Limerick silt loam, 0 to 3 percent slopes ML 29.1 0.8% 30B Raynham silt loam, 0 to 5 percent slopes ML 4.6 0.1% 32B Wareham loamy fine sand, 0 to 5 percent slopes SM 28.8 0.7% 36A Saco mucky silt loam, 0 to 1 percent slopes OL 13.6 0.4% 44A Birdsall mucky silt loam, 0 to 1 percent slopes ML 96.6 2.5% 51A Swansea muck, 0 to 1 percent slopes PT 50.1 1.3% 52A Freetown muck, 0 to 1 percent slopes PT 8.3 0.2%

53A Freetown muck, ponded, 0 to 1 percent slopes MLRA 144A PT 116.7 3.0%

71B Ridgebury fine sandy loam, 3 to 8 percent slopes, extremely stony SM 40.4 1.1%

73B Whitman fine sandy loam, 0 to 5 percent slopes, extremely stony

SC-SM 37.4 1.0%

97A Suncook loamy sand, 0 to 3 percent slopes SM 164.1 4.3% 98A Winooski very fine sandy loam, 0 to 3 percent slopes ML 64.4 1.7% 99A Occum very fine sandy loam, 0 to 3 percent slopes ML 22.8 0.6%

103B Charlton-Hollis-Rock outcrop complex, 3 to 8 percent slopes ML 83.8 2.2%

103C Charlton-Hollis-Rock outcrop complex, 8 to 15 percent slopes ML 89.3 2.3%

104C Hollis-Rock outcrop-Charlton complex, 3 to 15 percent slopes

183.1 4.8%

223A Scio very fine sandy loam, 0 to 3 percent slopes ML 128.0 3.3% 253B Hinckley loamy sand, 3 to 8 percent slopes SM 85.4 2.2% 253C Hinckley loamy sand, 8 to 15 percent slopes SM 25.2 0.7% 253D Hinckley loamy sand, 15 to 25 percent slopes SM 18.1 0.5% 253E Hinckley loamy sand, 25 to 35 percent slopes SM 6.1 0.2% 254A Merrimac fine sandy loam, 0 to 3 percent slopes SM 33.5 0.9% 254B Merrimac fine sandy loam, 3 to 8 percent slopes SM 89.2 2.3% 255A Windsor loamy sand, 0 to 3 percent slopes PT 50.1 1.3% 255B Windsor loamy sand, 3 to 8 percent slopes PT 202.7 5.3% 255C Windsor loamy sand, 8 to 15 percent slopes PT 26.3 0.7% 256A Deerfield loamy sand, 0 to 3 percent slopes PT 56.2 1.5% 256B Deerfield loamy sand, 3 to 8 percent slopes PT 28.2 0.7% 260B Sudbury fine sandy loam, 3 to 8 percent slopes SM 31.4 0.8% 261A Tisbury silt loam, 0 to 3 percent slopes ML 6.5 0.2%


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AOI Percent of AOI

261B Tisbury silt loam, 3 to 8 percent slopes ML 45.7 1.2% 300B Montauk fine sandy loam, 3 to 8 percent slopes ML 87.8 2.3% 300C Montauk fine sandy loam, 8 to 15 percent slopes ML 9.3 0.2%

302B Montauk fine sandy loam, 3 to 8 percent slopes, extremely stony ML 33.5 0.9%

302C Montauk fine sandy loam, 8 to 15 percent slopes, extremely stony ML 46.4 1.2%

302D Montauk fine sandy loam, 15 to 25 percent slopes, extremely stony ML 14.9 0.4%

305B Paxton fine sandy loam, 3 to 8 percent slopes SM 7.7 0.2% 305C Paxton fine sandy loam, 8 to 15 percent slopes SM 9.1 0.2%

307D Paxton fine sandy loam, 15 to 25 percent slopes, extremely stony SM 7.8 0.2%

311B Woodbridge fine sandy loam, 0 to 8 percent slopes, very stony PT 2.3 0.1%

315B Scituate fine sandy loam, 3 to 8 percent slopes SM 32.1 0.8%

317B Scituate fine sandy loam, 3 to 8 percent slopes, extremely stony SM 58.3 1.5%

416C Narragansett silt loam, 8 to 15 percent slopes, very stony PT 73.0 1.9%

420B Canton fine sandy loam, 3 to 8 percent slopes SC-SM 82.3 2.1%

420D Canton fine sandy loam, 15 to 25 percent slopes SC-SM 14.9 0.4%

422B Canton fine sandy loam, 3 to 8 percent slopes, extremely stony

SC-SM 167.6 4.4%

422C Canton fine sandy loam, 8 to 15 percent slopes, extremely stony

SC-SM 125.6 3.3%

422D Canton fine sandy loam, 15 to 25 percent slopes, extremely stony

SC-SM 10.0 0.3%

424B Canton fine sandy loam, 3 to 8 percent slopes, extremely bouldery

SC-SM 43.7 1.1%

602 Urban land

248.1 6.4% 621B Scio-Urban land complex, 0 to 8 percent slopes

87.3 2.3%

626B Merrimac-Urban land complex, 0 to 8 percent slopes

93.2 2.4%

629C Canton-Charlton-Urban land complex, 3 to 15 percent slopes

SC-SM 41.0 1.1%

631C Charlton-Urban land-Hollis complex, 3 to 15 percent

13.6 0.4%


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AOI Percent of AOI

slopes, rocky 653 Udorthents, sandy

29.4 0.8%

654 Udorthents, loamy

54.4 1.4% 655 Udorthents, wet substratum

16.6 0.4%

656 Udorthents-Urban land complex

138.8 3.6% Totals for Area of Interest 3,849.3 100.0%


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Depth to Water Table

Tables — Depth to Water Table — Summary By Map Unit


Map unit symbol Map unit name Rating

(centimeters) Acres in AOI

Percent of AOI

1 Water >200 338.1 8.8%

2A Pootatuck fine sandy loam, 0 to 3 percent slopes 61 2.1 0.1%

4A Rippowam fine sandy loam, 0 to 3 percent 23 1.3 0.0%


23




Percent of AOI

slopes

6A Scarboro mucky fine sandy loam, 0 to 3 percent slopes 0 93.4 2.4%

8A Limerick silt loam, 0 to 3 percent slopes 23 29.1 0.8% 30B Raynham silt loam, 0 to 5 percent slopes 23 4.6 0.1%

32B Wareham loamy fine sand, 0 to 5 percent slopes 23 28.8 0.7%

36A Saco mucky silt loam, 0 to 1 percent slopes 0 13.6 0.4% 44A Birdsall mucky silt loam, 0 to 1 percent slopes 0 96.6 2.5% 51A Swansea muck, 0 to 1 percent slopes 0 50.1 1.3% 52A Freetown muck, 0 to 1 percent slopes 0 8.3 0.2%

53A Freetown muck, ponded, 0 to 1 percent slopes MLRA 144A 0 116.7 3.0%

71B Ridgebury fine sandy loam, 3 to 8 percent slopes, extremely stony 23 40.4 1.1%

73B Whitman fine sandy loam, 0 to 5 percent slopes, extremely stony 0 37.4 1.0%

97A Suncook loamy sand, 0 to 3 percent slopes 153 164.1 4.3%

98A Winooski very fine sandy loam, 0 to 3 percent slopes 69 64.4 1.7%

99A Occum very fine sandy loam, 0 to 3 percent slopes 153 22.8 0.6%

103B Charlton-Hollis-Rock outcrop complex, 3 to 8 percent slopes >200 83.8 2.2%

103C Charlton-Hollis-Rock outcrop complex, 8 to 15 percent slopes >200 89.3 2.3%

104C Hollis-Rock outcrop-Charlton complex, 3 to 15 percent slopes >200 183.1 4.8%

223A Scio very fine sandy loam, 0 to 3 percent slopes 54 128.0 3.3%

253B Hinckley loamy sand, 3 to 8 percent slopes >200 85.4 2.2% 253C Hinckley loamy sand, 8 to 15 percent slopes >200 25.2 0.7% 253D Hinckley loamy sand, 15 to 25 percent slopes >200 18.1 0.5% 253E Hinckley loamy sand, 25 to 35 percent slopes >200 6.1 0.2%

254A Merrimac fine sandy loam, 0 to 3 percent slopes >200 33.5 0.9%

254B Merrimac fine sandy loam, 3 to 8 percent slopes >200 89.2 2.3%


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Percent of AOI

255A Windsor loamy sand, 0 to 3 percent slopes >200 50.1 1.3% 255B Windsor loamy sand, 3 to 8 percent slopes >200 202.7 5.3% 255C Windsor loamy sand, 8 to 15 percent slopes >200 26.3 0.7% 256A Deerfield loamy sand, 0 to 3 percent slopes 69 56.2 1.5% 256B Deerfield loamy sand, 3 to 8 percent slopes 69 28.2 0.7%

260B Sudbury fine sandy loam, 3 to 8 percent slopes 69 31.4 0.8%

261A Tisbury silt loam, 0 to 3 percent slopes 61 6.5 0.2% 261B Tisbury silt loam, 3 to 8 percent slopes 61 45.7 1.2%

300B Montauk fine sandy loam, 3 to 8 percent slopes 54 87.8 2.3%

300C Montauk fine sandy loam, 8 to 15 percent slopes 54 9.3 0.2%

302B Montauk fine sandy loam, 3 to 8 percent slopes, extremely stony 54 33.5 0.9%

302C Montauk fine sandy loam, 8 to 15 percent slopes, extremely stony 54 46.4 1.2%

302D Montauk fine sandy loam, 15 to 25 percent slopes, extremely stony 54 14.9 0.4%

305B Paxton fine sandy loam, 3 to 8 percent slopes 61 7.7 0.2% 305C Paxton fine sandy loam, 8 to 15 percent slopes 50 9.1 0.2%

307D Paxton fine sandy loam, 15 to 25 percent slopes, extremely stony 50 7.8 0.2%

311B Woodbridge fine sandy loam, 0 to 8 percent slopes, very stony 46 2.3 0.1%

315B Scituate fine sandy loam, 3 to 8 percent slopes 50 32.1 0.8%

317B Scituate fine sandy loam, 3 to 8 percent slopes, extremely stony 50 58.3 1.5%

416C Narragansett silt loam, 8 to 15 percent slopes, very stony >200 73.0 1.9%

420B Canton fine sandy loam, 3 to 8 percent slopes >200 82.3 2.1%

420D Canton fine sandy loam, 15 to 25 percent slopes >200 14.9 0.4%

422B Canton fine sandy loam, 3 to 8 percent slopes, extremely stony >200 167.6 4.4%

422C Canton fine sandy loam, 8 to 15 percent slopes, extremely stony >200 125.6 3.3%

422D Canton fine sandy loam, 15 to 25 percent >200 10.0 0.3%


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Percent of AOI

slopes, extremely stony

424B Canton fine sandy loam, 3 to 8 percent slopes, extremely bouldery >200 43.7 1.1%

602 Urban land >200 248.1 6.4%

621B Scio-Urban land complex, 0 to 8 percent slopes 54 87.3 2.3%

626B Merrimac-Urban land complex, 0 to 8 percent slopes >200 93.2 2.4%

629C Canton-Charlton-Urban land complex, 3 to 15 percent slopes >200 41.0 1.1%

631C Charlton-Urban land-Hollis complex, 3 to 15 percent slopes, rocky >200 13.6 0.4%

653 Udorthents, sandy >200 29.4 0.8% 654 Udorthents, loamy >200 54.4 1.4% 655 Udorthents, wet substratum >200 16.6 0.4% 656 Udorthents-Urban land complex >200 138.8 3.6% Totals for Area of Interest 3,849.3 100.0%


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AASHTO Group Classification

Tables — AASHTO Group Classification (Surface) — Summary By Map Unit



AOI Percent of AOI

1 Water

338.1 8.8% 2A Pootatuck fine sandy loam, 0 to 3 percent slopes A-4 2.1 0.1% 4A Rippowam fine sandy loam, 0 to 3 percent slopes A-4 1.3 0.0%


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AOI Percent of AOI

6A Scarboro mucky fine sandy loam, 0 to 3 percent slopes A-8 93.4 2.4% 8A Limerick silt loam, 0 to 3 percent slopes A-4 29.1 0.8% 30B Raynham silt loam, 0 to 5 percent slopes A-4 4.6 0.1% 32B Wareham loamy fine sand, 0 to 5 percent slopes A-2-4 28.8 0.7% 36A Saco mucky silt loam, 0 to 1 percent slopes A-6 13.6 0.4% 44A Birdsall mucky silt loam, 0 to 1 percent slopes A-4 96.6 2.5% 51A Swansea muck, 0 to 1 percent slopes A-8 50.1 1.3% 52A Freetown muck, 0 to 1 percent slopes A-8 8.3 0.2%

53A Freetown muck, ponded, 0 to 1 percent slopes MLRA 144A A-8 116.7 3.0%

71B Ridgebury fine sandy loam, 3 to 8 percent slopes, extremely stony A-4 40.4 1.1%

73B Whitman fine sandy loam, 0 to 5 percent slopes, extremely stony A-4 37.4 1.0%

97A Suncook loamy sand, 0 to 3 percent slopes A-2-4 164.1 4.3% 98A Winooski very fine sandy loam, 0 to 3 percent slopes A-4 64.4 1.7% 99A Occum very fine sandy loam, 0 to 3 percent slopes A-4 22.8 0.6%

103B Charlton-Hollis-Rock outcrop complex, 3 to 8 percent slopes A-4 83.8 2.2%

103C Charlton-Hollis-Rock outcrop complex, 8 to 15 percent slopes A-4 89.3 2.3%

104C Hollis-Rock outcrop-Charlton complex, 3 to 15 percent slopes

183.1 4.8%

223A Scio very fine sandy loam, 0 to 3 percent slopes A-4 128.0 3.3% 253B Hinckley loamy sand, 3 to 8 percent slopes A-2-4 85.4 2.2% 253C Hinckley loamy sand, 8 to 15 percent slopes A-2-4 25.2 0.7% 253D Hinckley loamy sand, 15 to 25 percent slopes A-2-4 18.1 0.5% 253E Hinckley loamy sand, 25 to 35 percent slopes A-2-4 6.1 0.2% 254A Merrimac fine sandy loam, 0 to 3 percent slopes A-4 33.5 0.9% 254B Merrimac fine sandy loam, 3 to 8 percent slopes A-4 89.2 2.3% 255A Windsor loamy sand, 0 to 3 percent slopes A-8 50.1 1.3% 255B Windsor loamy sand, 3 to 8 percent slopes A-8 202.7 5.3% 255C Windsor loamy sand, 8 to 15 percent slopes A-8 26.3 0.7% 256A Deerfield loamy sand, 0 to 3 percent slopes A-8 56.2 1.5% 256B Deerfield loamy sand, 3 to 8 percent slopes A-8 28.2 0.7% 260B Sudbury fine sandy loam, 3 to 8 percent slopes A-4 31.4 0.8%


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AOI Percent of AOI

261A Tisbury silt loam, 0 to 3 percent slopes A-4 6.5 0.2% 261B Tisbury silt loam, 3 to 8 percent slopes A-4 45.7 1.2% 300B Montauk fine sandy loam, 3 to 8 percent slopes A-4 87.8 2.3% 300C Montauk fine sandy loam, 8 to 15 percent slopes A-4 9.3 0.2%

302B Montauk fine sandy loam, 3 to 8 percent slopes, extremely stony A-4 33.5 0.9%

302C Montauk fine sandy loam, 8 to 15 percent slopes, extremely stony A-4 46.4 1.2%

302D Montauk fine sandy loam, 15 to 25 percent slopes, extremely stony A-4 14.9 0.4%

305B Paxton fine sandy loam, 3 to 8 percent slopes A-4 7.7 0.2% 305C Paxton fine sandy loam, 8 to 15 percent slopes A-4 9.1 0.2%

307D Paxton fine sandy loam, 15 to 25 percent slopes, extremely stony A-4 7.8 0.2%

311B Woodbridge fine sandy loam, 0 to 8 percent slopes, very stony A-8 2.3 0.1%

315B Scituate fine sandy loam, 3 to 8 percent slopes A-4 32.1 0.8%

317B Scituate fine sandy loam, 3 to 8 percent slopes, extremely stony A-4 58.3 1.5%

416C Narragansett silt loam, 8 to 15 percent slopes, very stony A-8 73.0 1.9%

420B Canton fine sandy loam, 3 to 8 percent slopes A-4 82.3 2.1% 420D Canton fine sandy loam, 15 to 25 percent slopes A-4 14.9 0.4%

422B Canton fine sandy loam, 3 to 8 percent slopes, extremely stony A-4 167.6 4.4%

422C Canton fine sandy loam, 8 to 15 percent slopes, extremely stony A-4 125.6 3.3%

422D Canton fine sandy loam, 15 to 25 percent slopes, extremely stony A-4 10.0 0.3%

424B Canton fine sandy loam, 3 to 8 percent slopes, extremely bouldery A-4 43.7 1.1%

602 Urban land

248.1 6.4% 621B Scio-Urban land complex, 0 to 8 percent slopes

87.3 2.3%

626B Merrimac-Urban land complex, 0 to 8 percent slopes

93.2 2.4%

629C Canton-Charlton-Urban land complex, 3 to 15 percent slopes A-4 41.0 1.1%

631C Charlton-Urban land-Hollis complex, 3 to 15 percent slopes, rocky

13.6 0.4%


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AOI Percent of AOI

653 Udorthents, sandy

29.4 0.8% 654 Udorthents, loamy

54.4 1.4%

655 Udorthents, wet substratum

16.6 0.4% 656 Udorthents-Urban land complex

138.8 3.6%

Totals for Area of Interest 3,849.3 100.0% Depth Frequency Class


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Tables — Flooding Frequency Class — Summary By Map Unit Summary by Map Unit — Middlesex County, Massachusetts (MA017)


AOI Percent of AOI

1 Water None 338.1 8.8% 2A Pootatuck fine sandy loam, 0 to 3 percent slopes Occasional 2.1 0.1% 4A Rippowam fine sandy loam, 0 to 3 percent slopes Frequent 1.3 0.0%

6A Scarboro mucky fine sandy loam, 0 to 3 percent slopes None 93.4 2.4%

8A Limerick silt loam, 0 to 3 percent slopes Frequent 29.1 0.8% 30B Raynham silt loam, 0 to 5 percent slopes None 4.6 0.1% 32B Wareham loamy fine sand, 0 to 5 percent slopes None 28.8 0.7% 36A Saco mucky silt loam, 0 to 1 percent slopes Frequent 13.6 0.4% 44A Birdsall mucky silt loam, 0 to 1 percent slopes None 96.6 2.5% 51A Swansea muck, 0 to 1 percent slopes Rare 50.1 1.3% 52A Freetown muck, 0 to 1 percent slopes Rare 8.3 0.2%

53A Freetown muck, ponded, 0 to 1 percent slopes MLRA 144A Rare 116.7 3.0%

71B Ridgebury fine sandy loam, 3 to 8 percent slopes, extremely stony None 40.4 1.1%

73B Whitman fine sandy loam, 0 to 5 percent slopes, extremely stony None 37.4 1.0%

97A Suncook loamy sand, 0 to 3 percent slopes Frequent 164.1 4.3%

98A Winooski very fine sandy loam, 0 to 3 percent slopes Frequent 64.4 1.7%

99A Occum very fine sandy loam, 0 to 3 percent slopes Frequent 22.8 0.6%

103B Charlton-Hollis-Rock outcrop complex, 3 to 8 percent slopes None 83.8 2.2%

103C Charlton-Hollis-Rock outcrop complex, 8 to 15 percent slopes None 89.3 2.3%

104C Hollis-Rock outcrop-Charlton complex, 3 to 15 percent slopes None 183.1 4.8%

223A Scio very fine sandy loam, 0 to 3 percent slopes None 128.0 3.3% 253B Hinckley loamy sand, 3 to 8 percent slopes None 85.4 2.2% 253C Hinckley loamy sand, 8 to 15 percent slopes None 25.2 0.7% 253D Hinckley loamy sand, 15 to 25 percent slopes None 18.1 0.5% 253E Hinckley loamy sand, 25 to 35 percent slopes None 6.1 0.2% 254A Merrimac fine sandy loam, 0 to 3 percent slopes None 33.5 0.9% 254B Merrimac fine sandy loam, 3 to 8 percent slopes None 89.2 2.3% 255A Windsor loamy sand, 0 to 3 percent slopes None 50.1 1.3% 255B Windsor loamy sand, 3 to 8 percent slopes None 202.7 5.3%


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Summary by Map Unit — Middlesex County, Massachusetts (MA017) Map unit symbol Map unit name Rating Acres in

AOI Percent of AOI

255C Windsor loamy sand, 8 to 15 percent slopes None 26.3 0.7% 256A Deerfield loamy sand, 0 to 3 percent slopes None 56.2 1.5% 256B Deerfield loamy sand, 3 to 8 percent slopes None 28.2 0.7% 260B Sudbury fine sandy loam, 3 to 8 percent slopes None 31.4 0.8% 261A Tisbury silt loam, 0 to 3 percent slopes None 6.5 0.2% 261B Tisbury silt loam, 3 to 8 percent slopes None 45.7 1.2% 300B Montauk fine sandy loam, 3 to 8 percent slopes None 87.8 2.3% 300C Montauk fine sandy loam, 8 to 15 percent slopes None 9.3 0.2%

302B Montauk fine sandy loam, 3 to 8 percent slopes, extremely stony None 33.5 0.9%

302C Montauk fine sandy loam, 8 to 15 percent slopes, extremely stony None 46.4 1.2%

302D Montauk fine sandy loam, 15 to 25 percent slopes, extremely stony None 14.9 0.4%

305B Paxton fine sandy loam, 3 to 8 percent slopes None 7.7 0.2% 305C Paxton fine sandy loam, 8 to 15 percent slopes None 9.1 0.2%

307D Paxton fine sandy loam, 15 to 25 percent slopes, extremely stony None 7.8 0.2%

311B Woodbridge fine sandy loam, 0 to 8 percent slopes, very stony None 2.3 0.1%

315B Scituate fine sandy loam, 3 to 8 percent slopes None 32.1 0.8%

317B Scituate fine sandy loam, 3 to 8 percent slopes, extremely stony None 58.3 1.5%

416C Narragansett silt loam, 8 to 15 percent slopes, very stony None 73.0 1.9%

420B Canton fine sandy loam, 3 to 8 percent slopes None 82.3 2.1% 420D Canton fine sandy loam, 15 to 25 percent slopes None 14.9 0.4%

422B Canton fine sandy loam, 3 to 8 percent slopes, extremely stony None 167.6 4.4%

422C Canton fine sandy loam, 8 to 15 percent slopes, extremely stony None 125.6 3.3%

422D Canton fine sandy loam, 15 to 25 percent slopes, extremely stony None 10.0 0.3%

424B Canton fine sandy loam, 3 to 8 percent slopes, extremely bouldery None 43.7 1.1%

602 Urban land None 248.1 6.4% 621B Scio-Urban land complex, 0 to 8 percent slopes None 87.3 2.3% 626B Merrimac-Urban land complex, 0 to 8 percent slopes None 93.2 2.4%


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Summary by Map Unit — Middlesex County, Massachusetts (MA017) Map unit symbol Map unit name Rating Acres in

AOI Percent of AOI

629C Canton-Charlton-Urban land complex, 3 to 15 percent slopes None 41.0 1.1%

631C Charlton-Urban land-Hollis complex, 3 to 15 percent slopes, rocky None 13.6 0.4%

653 Udorthents, sandy None 29.4 0.8% 654 Udorthents, loamy None 54.4 1.4% 655 Udorthents, wet substratum None 16.6 0.4% 656 Udorthents-Urban land complex None 138.8 3.6% Totals for Area of Interest 3,849.3 100.0%

ThisdatashowsthattheMerrimackriverhasnocauseoffloodingontheClayPitBrookarea.ThereforethisprovesthatClayPitBrookisafloodplaneandthefloodingofthisareahasnothingtodowiththeriver.


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(D) Solution & Assumptions to the problem:


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From gathering and performing the data in the Clay Pit Brook area a conclusion was reached that

Clay Pit Brook is in a Flood Bank and in a valley, and whenever it rains sufficient enough the area will flood. When the river rises because of these storms, it has little to no effect on Clay Pit Brook flooding. The residents moving out of the area would be a solution, but that wont happen. Since replacing the whole drainage system would be a costly repair and a long and disturbing project for the residents there, one solution would be to clean out and maintain the drainage system in the area since there could be debris stuck in the pipes and corrosion causing the system to not perform more efficiently. Another easy solution would be to pass down the data collected in this project to future UML Civil & Environmental Engineers students so then they can perform more analysis on the area and perfect the problem.

CAAF Submital for PIT

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