VOLUME 3 OF 5
HILLSBOROUGH COUNTY, NEW HAMPSHIRE (ALL JURISDICTIONS)
COMMUNITY NAME COMMUNITY NUMBER AMHERST, TOWN OF 330081 ANTRIM, TOWN OF 330082 BEDFORD, TOWN OF 330083 BENNINGTON, TOWN OF 330084 BROOKLINE, TOWN OF 330180 DEERING, TOWN OF 330085 FRANCESTOWN, TOWN OF 330086 GOFFSTOWN, TOWN OF 330087 GREENFIELD, TOWN OF 330209 GREENVILLE, TOWN OF 330088 HANCOCK, TOWN OF 330089 HILLSBOROUGH, TOWN OF 330090 HOLLIS, TOWN OF 330091 HUDSON, TOWN OF 330092 LITCHFIELD, TOWN OF 330093 LYNDEBOROUGH, TOWN OF 330218 MANCHESTER, CITY OF 330169 MASON, TOWN OF 330221 Hillsborough County MERRIMACK, TOWN OF 330095 MILFORD, TOWN OF 330096 MONT VERNON, TOWN OF 330224 NASHUA, CITY OF 330097 NEW BOSTON, TOWN OF 330098 NEW IPSWICH, TOWN OF 330099 PELHAM, TOWN OF 330100 PETERBOROUGH, TOWN OF 330101 SHARON, TOWN OF 330192 TEMPLE, TOWN OF 335781 WEARE, TOWN OF 330235 WILTON, TOWN OF 330102 WINDSOR, TOWN OF 335780
Initial Countywide FIS Effec tive Date: September 25, 2009 Federal Emergency Management Agency
FLOOD INSURANCE STUDY NUMBER 33011CV003A
NOTICE TO FLOOD INSURANCE STUDY USERS
Communities participating in the National Flood Insurance Program have established repositories of flood hazard data for floodplain management and flood insurance purposes. This Flood Insurance Study (FIS) may not contain all data available within the repository. It is advisable to contact the community repository for any additional data.
Part or all of this FIS may be revised and republished at any time. In addition, part of this FIS may be revised by the Letter of Map Revision process, which does not involve republication or redistribution of the FIS. It is, therefore, the responsibility of the user to consult with community officials and to check the community repository to obtain the most current FIS components.
Initial Countywide FIS Effective Date: September 25, 2009
TABLE OF CONTENTS – Volume 1
Page
1.0 INTRODUCTION 1 1.1 Purpose of Study 1 1.2 Authority and Acknowledgments 1 1.3 Coordination 6
2.0 AREA STUDIED 7 2.1 Scope of Study 7 2.2 Community Description 9 2.3 Principal Flood Problems 10 2.4 Flood Protection Measures 11
3.0 ENGINEERING METHODS 13 3.1 Hydrologic Analyses 13 3.2 Hydraulic Analyses 34 3.3 Vertical Datum 42
4.0 FLOODPLAIN MANAGEMENT APPLICATIONS 43 4.1 Floodplain Boundaries 43 4.2 Floodways 45
5.0 INSURANCE APPLICATIONS 95
6.0 FLOOD INSURANCE RATE MAP 97
7.0 OTHER STUDIES 97
8.0 LOCATION OF DATA 101
9.0 BIBLIOGRAPHY AND REFERENCES 101
i TABLE OF CONTENTS - Volume 1 - continued
Page
FIGURES
Figure 1 - Floodway Schematic 95
TABLES
Table 1 – Initial and Final CCO Meetings 6
Table 2 - Streams Studied by Detailed Methods 7
Table 3 – Scope of Revision 8
Table 4 – Letters of Map Correction 9
Table 5 - Summary of Discharges 20-33
Table 6 - Summary of Stillwater Elevations 34
Table 7 – Manning’s “n” values 40-41
Table 8 - Floodway Data Table 46-93
Table 9 - Community Map History 98-100
TABLE OF CONTENTS – Volume 2
EXHIBITS
Exhibit 1 - Flood Profiles Autumn Brook Panels 01P-03P Baboosic Brook Panels 04P-15P Bartemus Brook Panel 16P Beards Brook Panels 17P-24P Beaver Brook No. 1 Panels 25P-29P Beaver Brook No. 2 Panels 30P-34P Bettys Brook Panels 35P-37P Black Pond Brook Panels 38P-42P Bog Brook Panels 43P-45P
ii TABLE OF CONTENTS – Volume 2 - continued
EXHIBITS - continued
Exhibit 1 - Flood Profiles (continued) Bowman Brook Panels 46P-51P Caesars Brook Panels 52P-53P Chase Brook Panels 54P-57P Contoocook River Panels 58P-71P Deering Reservoir Panels 72P-73P East Branch of Baboosic Brook Panel 74P Ferguson Brook Panels 75P-76P Gambol Brook Panels 77P-80P Golden Brook Panels 81P-84P Gorham Brook Panel 85P Great Brook No. 1 Panels 86P-89P
TABLE OF CONTENTS – Volume 3
EXHIBITS - continued
Exhibit 1 - Flood Profiles (continued) Great Brook No. 2 Panels 90P-91P Great Cohas Brook Panels 92P-95P Gumpas Pond Brook Panels 96P-103P Gumpas Road Brook Panels 104P-106P Hartshorn Brook Panel 107P Hassells Brook Panels 108P-109P Holts Brook Panel 110P Hosley Brook Panel 111P Island Pond Brook Panels 112P-113P Joe English Brook Panels 114P-116P Limit Brook Panel 117P Lyle Reed Brook Panel 118P McQuade Brook Panels 119P-123P McQuade Brook Split Flow Panel 124P Merrimack River Panels 125P-136P Middle Branch Piscataquog River Panels 137P-144P Mill Brook Panels 145P-159P Moose Brook Panel 160P Nashua River Panels 161P-163P Naticook Brook Panels 164P-166P Nesenkeag River Panels 167P-171P New Meadow Brook Panels 172P-173P Nissitissit River Panels 174P-175P North Branch Panels 176P-178P North Branch Contoocook River Panels 179P-181P North Channel Piscataquog River Panel 182P
iii TABLE OF CONTENTS – Volume 4
EXHIBITS - continued
Exhibit 1 - Flood Profiles (continued) Nubanusit Brook Panels 183P-194P Otter Brook Panels 195P-205P Otter Lake Brook Panels 206P-208P Ox Brook Panel 209P Parkhurst Brook Panel 210P Peacock Brook Panels 211P-212P Pennichuck Brook Panels 213P-220P Piscataquog River Panels 221P-240P Pointer Club Brook Panels 241P-245P Pulpit Brook Panels 246P-248P Purgatory Brook Panels 249P-252P Riddle Brook Panels 253P-256P Salmon Brook Panels 257P-260P Sand Brook Panels 261P-267P Second Brook Panels 268P-271P
TABLE OF CONTENTS – Volume 5
EXHIBITS - continued
Exhibit 1 - Flood Profiles (continued) Shedd Brook Panels 272P-277P Sherburn Mill Brook Panels 278P-280P Simpson Mill Brook Panels 281P-282P Souhegan River Panels 283P-309P South Branch Piscataquog River Panels 310P-320P Spit Brook Panels 321P-323P Stony Brook Panels 324P-335P Tioga River Panels 336P-344P Tributary A Panel 345P Tributary B No. 1 Panels 346P-347P Tributary B No. 2 Panels 348P-353P Tucker Brook Panels 354P-358P Witches Brook Panels 359P-362P
Exhibit 2 - Flood Insurance Rate Map Index Flood Insurance Rate Map
iv D
A
O
R
E
R
S
L
V
I
I
K
E
M
A
R H
R
G
N
A
T
275 I 275
R
T
O
N
I
N
T
E
D
I
E
A
E
E
E W
A
W
D
D
Y
M
E
I
N
R
R
G
I
E
R
R
N S
E
T
E
D
A
C
T
A
T
O
S
H
D
N
M N S
T
P
A
U
A
A
N
E
U
O
D
L W N
D
O
U
B
N
S
I
O O
N
A
R
L
D
I
O
L
F
R
C
A
O
T
I
R
N
T
T
N
R
N
A
A
O
I
N U
S
2
L
S
O
I
L F
R
O
O
H
.
C 270 L 270
A
E
I
T
B
T
O
R
S
L
U M CULVERT
I
O
N
O
B
F M CULVERT
K
O CULVERT O
R
O
P
R
B
D
265 265 T
1
O
0
A
T
1
E
E
O
E
E
R
L
R
T
G
T
F
U
S
O
)
R
8
M
.
L
8
S
E
.
D
U
V
A 260 260
N
(
T
E
E
F
N
I
N
1
O
H
I
0
M
T
T
1
I 255 255
A
A
D
E
W
D
V
T
A
E K
E
U
O D
L
O
C
R WEIR O
N
E
O
N
R
O
D E
R
P
E
O
U
B
T
L
D
O
X
F
Y
A
O
G
SPILLWAY O
N
T
C S
O
O
S
O
G
N
C
S
W 250 250 E
O
E
H
G
N
A
N
,
T
N
Y H I E
T
)
M
S
N
E
N
G
U
245 245 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
M
H
S
I
Y
G 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L C E
240 L
R
G
A
(
10% ANNUAL CHANCE FLOOD R
O
B E
B
STREAM BED M
S
E
L
A D E F G L CROSS SECTION LOCATION L
I
A
R
H
235 E
D
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 E
F STREAM DISTANCE IN FEET ABOVE MOUTH AT SOUHEGAN RIVER 90P D D
Y
A A
D
D
O O
U
A
R R
F
T
O
O
D D
S
R
E E
T
D
I
N
N N
E
O
O O
M
L
I
I
S
D D
L
A
A
N N
T
A A
M
E
2
S
B B
D
. 285 A A 285
E
O
L
I
N
F
K
O
O
R
O
P
R
B
D
280 280 T
O
A
E
O
R
L
G
F
)
8
8
D
V
A 275 275
N
(
T
E
E
F
N
I
N
O
I
T 270 270
A
V
E
L
E
Y
C
N
265 265 E
H
G
A
N
,
T
N
Y N E
T
)
M
S
N
E
N
G
U
260 260 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
M
H
S
I
Y
G 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L
R
G
A
(
10% ANNUAL CHANCE FLOOD R
O
E
B
STREAM BED M
S
E
L
J K L M L CROSS SECTION LOCATION L
I
A
R
H
E
D
13000 14000 15000 16000 17000 18000 19000 20000 21000 22000 23000 24000 E
F STREAM DISTANCE IN FEET ABOVE MOUTH AT SOUHEGAN RIVER 91P 190 190 1% ANNUAL CHANCE BACKWATER FROM MERRIMACK RIVER
180 180
E
U
N
E
V
A
N
W
O
K
R
S
B 170 170 O
E
O PINE ISLAND POND DAM
L
R
I
B
F
S
O
A
R
H
P
O
C
D 160 160
T
O
A
O
E
L
R
F
G
) CONFLUENCE WITH MERRIMACK RIVER CONFLUENCE WITH MERRIMACK
8
8
D
V
A 150 150
N
(
T
E
E
F
N
I
N
O
I
T 140 140
A
V
E
L
E
Y
C
N
130 130 E
G THE 2% AND 1% ANNUAL CHANCE FLOOD H
A
N
PROFILES ARE TOO CLOSE TO BE SHOWN T
,
N SEPARATELY IN THIS AREA Y
E
T
)
M
N
S
E
N
U
G
120 120 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
C 2% ANNUAL CHANCE FLOOD O
L
E
L 110 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B B
STREAM BED M
S
E
L
L A D E F L
CROSS SECTION LOCATION I
A
H
R
100 E
D
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 92P 240 240
D
A
)
O
N
R
O
I
L
I 230 T 230
A
A
R
C
E
O
L
N
I
E
A
T
M
A
D
M
I
N
X
A
K
O
S
O
R 220 N 220
E
P
O
O
P
T
L
R
A I
S
(
B
O
F
B
S
O
A
R
H
P
O
C
D 210 210
T
O
A
O
E
L
R
F
G
)
8
8
D
V
A 200 200
N
(
T
E
E
F
N
I
N
O
I
T 190 190
A
V
E
L
E
Y
C
T
E
N
E
E 180 8 180
R
2
T
G
H
E S
A
T
N
W
U
T
,
O
O
L
N
R
Y
L
I
E
E
T
W
T
)
M
A
N
S
H
E
T
T
N
U
S
G
U
170 170 O
I
A
O
O
S
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 160 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
J B
STREAM BED M
S
E
L
L G H I L
CROSS SECTION LOCATION I
A
H
R
150 E
D
11000 12000 13000 14000 15000 16000 17000 18000 19000 20000 21000 22000 23000 24000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 93P 260 260
D
A
250 O 250
R
3 3
9 9
H
T E E
T T
O
A A
M
T T
M
S S
A
R R
E E
M
T T
K
H
N N
I I
S
T 240 240 O
U
E
O
O
L
R
S
I
B
F
S
O
A
R
H
P
O
C
D 230 230
T
O
A
O
E
L
R
F
G
)
8
8
D
V
A 220 220
N
(
T
E
E
F
N
I
N
O
I
T 210 210
A
V
E
L
E
Y
C
N
200 200 E
G
H
A
N
T
,
N
Y
E
M T
)
M
N
S
E
N
U
G
190 190 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 180 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L K L L
CROSS SECTION LOCATION I
A
H
R
170 E
D
22000 23000 24000 25000 26000 27000 28000 29000 30000 31000 32000 33000 34000 35000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 94P 270 270
Y
D
U
260 T 260
E
S
U
D
N
E
E
L
I
V
A
A
T
S
E
A
D
H
F
O
K
O
C
S
O
T
250 I 250
E
O
M
L
I
R
I
L
B
F
S
O
A
R
H
P
O
C
D 240 240
T
O
A
O
E
L
R
F
G
)
8
8
D
V
A 230 230
N
(
T
E
E
F
N
I
N
O
I
T 220 220
A
V
E
L
E
Y
C
N
210 210 E
E
M
U
G
H
A
N
A
D
E
N
V
D
T
,
A
N
N
Y
O
L
E
P
A
T
L
)
N
M
L
N
I
S
A
E
C
N
M
U
G
200 200 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 190 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
O B
STREAM BED M
S
E
L
L N P L
CROSS SECTION LOCATION I
A
H
R
180 E
D
33000 34000 35000 36000 37000 38000 39000 40000 41000 42000 43000 44000 45000 46000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 95P 130 130
K
1% ANNUAL CHANCE BACKWATER FROM BEAVER BROOK #1 O
O
R
B
D
A
O
R
E
128 N 128
R
U
B
R
E
H
S
F
O
E
K
C
S
O
126 N 126
E
O
E
U
L
R
I
L
B
F
F
N
D
O
O
C
N
R
O
P
P
S 124 124 D
A
O
P
O
M
L
U
F
G
)
8
8
D
V
A 122 122
N
(
T
E
E
F
N
I
N
O
I
T 120 120
A
V
E
L
E
Y
C
N
118 118 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
116 116 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 114 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L A L
CROSS SECTION LOCATION I
A
H
R
112 E
D
700 900 1100 1300 1500 1700 1900 2100 2300 2500 2700 2900 3100 3300 E
F STREAM DISTANCE IN FEET ABOVE MOUTH 96P 140 140
M
A
D
138 138
E
N
O
T
S
D
N
A
K
H
S
T
O
136 R 136
E
O
A
L
R
E
I
B
F
D
O
N
R
O
P
P
S 134 134 D
A
O
P
O
M
L
U
F
G
)
8
8
D
V
D
A 132 132
A
N
(
O
R
T
E
H
E
T
F
O
N
I
M
N
M
O
A
I
T 130 M 130
A
V
E
L
E
Y
C
N
128 128 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
126 126 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 124 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L B C L
CROSS SECTION LOCATION I
A
H
R
122 E
D
3100 3300 3500 3700 3900 4100 4300 4500 4700 4900 5100 5300 5500 5700 E
F STREAM DISTANCE IN FEET ABOVE MOUTH 97P 148 148
146 146
K
S 144 144 O
E
O
L
R
I
B
F
D
O
N
R
O
P
P
S 142 142 D
A
O
P
O
M
L
U
F
G
)
8
8
D
V
A 140 140
N
(
T
E
E
F
N
I
N
O
I
T 138 138
A
D
V
A
E
L
O
E
R
E
T
A
Y
V
I
C
R
P
N
136 136 E
G
H
A
N
T
,
N
Y
E
D T
)
M
N
S
E
N
U
G
134 134 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 132 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L
L
CROSS SECTION LOCATION I
A
H
R
130 E
D
4700 4900 5100 5300 5500 5700 5900 6100 6300 6500 6700 6900 7100 7300 E
F STREAM DISTANCE IN FEET ABOVE MOUTH 98P 154 154
152 152
E
E
G
G
D
D
I
I
R
R
B
B
T
T
O
R
O
A
F
K
C
S 150 150 O
E
O
L
R
I
B
F
D
O
N
R
O
P
P
S 148 148 D
A
O
P
O
M
L
U
F
G
)
8
8
D
V
A 146 146
N
(
T
E
E
F
N
I
N
O
I
T 144 144
A
V
E
L
E
Y
C
N
142 142 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
140 140 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 138 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L E L
CROSS SECTION LOCATION I
A
H
R
136 E
D
7100 7300 7500 7700 7900 8100 8300 8500 8700 8900 9100 9300 9500 9700 E
F STREAM DISTANCE IN FEET ABOVE MOUTH 99P 162 162
160 D 160
A
O
D
R
A
Y
O
T
R
N
T
U
R
I
O
D
C
K
D
S
O 158 L 158
O E
O
L
R
I
B
F
D
O
N
R
O
P
P
S 156 156 D
A
O
P
O
M
L
U
F
G
)
8
8
D
V
A 154 154
N
(
T
E
E
F
N
I
N
O
I
T 152 152
A
V
E
L
E
Y
C
N
150 150 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
148 148 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 146 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L F G L
CROSS SECTION LOCATION I
A
H
R
144 E
D
9100 9300 9500 9700 9900 10100 10300 10500 10700 10900 11100 11300 11500 11700 E
F STREAM DISTANCE IN FEET ABOVE MOUTH 100P 170 170
168 D 168
A
O
R
L
L
I
H
S
A
P
K
M
S
O 166 U 166
E
O
G
L
R
I
B
F
D
O
N
R
O
P
P
S 164 164 D
A
O
P
O
M
L
U
F
G
)
8
8
D
V
A 162 162
N
(
T
E
E
F
N
I
N
O
I
T 160 160
A
V
E
L
E
Y
C
N
158 158 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
156 156 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 154 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L H L
CROSS SECTION LOCATION I
A
H
R
152 E
D
11600 11800 12000 12200 12400 12600 12800 13000 13200 13400 13600 13800 14000 14200 E
F STREAM DISTANCE IN FEET ABOVE MOUTH 101P 190 190
185 185
K
S 180 180 O
E
O
L
R
I
B
F
D
O
N
R
O
P
P
S 175 175 D
A
O
P
O
M
L
U
F
G
)
8
8
D
V
A 170 170
N
(
T
E
E
F
N
I
N
O
I
T 165 165
A
V
E
L
E
Y
C
N
160 160 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
155 155 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 150 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L
L
CROSS SECTION LOCATION I
A
H
R
145 E
D
12700 12900 13100 13300 13500 13700 13900 14100 14300 14500 14700 14900 15100 15300 E
F STREAM DISTANCE IN FEET ABOVE MOUTH 102P 210 210
M
A
205 D 205
H
T
R
A
E
D
N
A
K
E
S
O 200 N 200
O E
O
T
L
R
S
I
B
F
D
O
N
R
O
P
P
S 195 195 D
A
O
P
O
M
L
U
F
G
)
8
8
D
V
A 190 190
N
(
T
E
E
F
N
I
Y
N
D
O
U
I
D
T
M
T
A
185 S 185
A
A
O
D
V
D
R
E
E
D
L
D
L
I
E
N
N
A
O
O
T
P
P
E
S
D
S
Y
A
A
F
P
C
P
O
M
N
M
T
I
U
U 180 180 E
G
G
M
G
I
H
L
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
175 175 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 170 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L I J L
CROSS SECTION LOCATION I
A
H
R
165 E
D
13700 13900 14100 14300 14500 14700 14900 15100 15300 15500 15700 15900 16100 16300 E
F STREAM DISTANCE IN FEET ABOVE MOUTH 103P 150 150
1% ANNUAL CHANCE FLOOD BACKWATER FROM BEAVER BROOK NO. 1
145 145
D
A
1
O
.
R
O
H
N
S
K
R
O
A
K
O
M
R
S
O
140 B 140
E
O
R
L
R
E
I
V
B
F
A
E
D
O
B
A
R
H
O
T
P
I
R
W
S
D 135 E 135
C
A
O
N CULVERT
P
E
O
U
M
L
L
U
F
F
N
G
)
O
8
C
8
D
V
A 130 130
N
(
T
E
E
F
N
I
N
O
I
T 125 125
A
V
E
L
E
Y
C
N
120 120 E
G
H
A
N
T
,
N
Y
E
B C T
)
M
N
S
E
N
U
G
115 115 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 110 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L A L
CROSS SECTION LOCATION I
A
H
R
105 E
D
0 400 800 1200 1600 2000 2400 2800 3200 3600 4000 4400 4800 5200 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH BEAVER BROOK 104P 165 165
G
N
160 I 160
S
D
S
A
O
O
R
R
C
S
S
'
N
R
R
E
U
K
B
M
S
R
O
155 A 155
E
O
F
L
R
I
B
F
D
O
A
R
O
P
R
S 150 150 D
A
O
P
O
M
L
U
F
G
)
8
8
D
V
A 145 145
N
(
T
E
E
F
N
I
N CULVERT
O
I CULVERT T 140 140
A
V
E
L
E
Y
C
N
135 135 E
G
H
A
N
T
,
N
Y
E
I T
)
M
N
S
E
N
U
G
130 130 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 125 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
F H B
STREAM BED M
S
E
L
L D E G L
CROSS SECTION LOCATION I
A
H
R
120 E
D
5200 5600 6000 6400 6800 7200 7600 8000 8400 8800 9200 9600 10000 10400 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH BEAVER BROOK 105P 195 195
Y
D
U
190 T 190
S
E
D
V
I
E
R
L
I
D
A
E
T
I
E
B
D
B
E
F
K
D
O
S
O
T
185 I 185
E
O
M
L
R
I
I
L
B
F
D
O
A
R
O
P
R
S 180 180 D
A
O
P
O
M
L
U
F
G
)
8
8
D
V
A 175 175
N
(
T
E
E
F
N
I
N
O
I
T 170 170
A
V
E
L
E
Y
C
CULVERT N
165 165 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
160 160 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 155 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
K B
STREAM BED M
S
E
L
L J L
CROSS SECTION LOCATION I
A
H
R
150 E
D
10400 10800 11200 11600 12000 12400 12800 13200 13600 14000 14400 14800 15200 15600 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH BEAVER BROOK 106P 275 275
1 % ANNUAL CHANCE BACKWATER EFFECTS FROM SOUHEGAN RIVER 270 270
Y
D
U
T
D
R
K
H S
S
E
A
T
265 265
O
I E
D
V
O
I
D
A
O
L
W
R
E
R
I
O
L
R
E
I
R
N
R
F
C
E
A
B
A
N
V
N
T
O
I
G
E
E
O
N
E
R
U
D
S
R
H
I
R
L
H
F
F U
N
P
T
O
O
O
N
N
R
H
E
S
O
T
O
D
I
J
C
S
260 N 260
M
O
T
I
L
R
O
A
L
H
F
)
8
8
D
V
A 255 255
N
(
T
E
E
F
N
I
N
O
I
T 250 CULVERT 250
A
V
E
L
E
Y
C
N
245 245 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
240 240 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 235 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B B
STREAM BED M
S
E
L
L A C L
CROSS SECTION LOCATION I
A
H
R
230 E
D
0 500 1000 1500 2000 2500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOUHEGAN RIVER 107P 1% ANNUAL CHANCE BACKWATER FROM SALMON BROOK
K
T
O
E
E
O
R
R
T
B
S
N
T
O
N
M
O
L
M
A
L
S
S
A
H 156 156 K
E
T
I
O
L
I
W
O
F
E
R
C
O B
N
E
R
S
U
L
P
L
L
F
E
N
D
O 152 152 S
C
O
S
A
O
H
L
F
)
8
8
D
V
A 148 148
N
(
T
E
E
F
N
I
N
O
I
T 144 144
A
V
E
L
E
Y
C
CULVERT N
140 140 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
136 136 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 132 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L A L
CROSS SECTION LOCATION I
A
H
R
128 E
D
0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SALMON BROOK 108P
S
I
S
R
K
R
O
A
E
O
D
H
V
Y
I
R
A
F
A
R
B
O
O
D
W
R
S
E
E
R E
V
D
C
L
I
E
N
N
R A
D
E
U
L
D H
L
U
A
L
D
S
F
N
K
N
E
A
O
O
L
C
I
O
F
R
O B
R
S
L
P
L
E
D
156 156 S
O
S
A
O
H
L
F
)
8
8
D
V
A 152 152
N
(
T
E
E
F
N
I
N CULVERT
O CULVERT
I
T 148 148
A
V
E
L
E
Y
Y
C
D
U
N
T 144 144 E
S
G
H
D
A
E
N
L
I
T
,
A
N
T
Y
E
E
T
D
)
M
F
N
S
E
O
N
U
G
T
I 140 140 O
I
A
O
M
T
I LEGEND N
L C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 136 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L B C L
CROSS SECTION LOCATION I
A
H
R
132 E
D
2600 2800 3000 3200 3400 3600 3800 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SALMON BROOK 109P 245 245 1% ANNUAL CHANCE BACKWATER FROM SOUHEGHAN RIVER
R
E
V
Y
I
R D
U
N
T
D D
240 A 240
S
A A
G
O O
E D
R R
E
H
L
U I
K K
O A
C C
S T
A A
E
H
M M
D
I I
T
I
R R
F
R R
O
W
E E
S
E
T
I 235 M M 235
C
E
M
N
I
L
K
E
L I
O
U
F
L
O
F
O
R
N
O
R
B
C
P
S
T
D 230 230 L
O
O
H
O
L
F
)
8
8
D
V
A 225 225
N
(
T
E
E
F
N
I
N
O
I
T 220 220
A
V
E
L
E
Y
C
N
215 215 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
210 210 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 205 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L A B L
CROSS SECTION LOCATION I
A
H
R
200 E
D
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOUHEGAN RIVER 110P 1205 1205
Y
D
U
D
T 1200 A 1200
S
O
R
D
M
E
A
D
L
I
D
N
A
O
R
T
P
E
E
V
S
D
A
T
E
F
N
B
O
U
S
T
H 1195 I 1195
E
M
K
I
L
L
I
O
F
O
R
O
B
R
Y
P
Y
E
D
L
U
D
S 1190 T 1190
O
S
O
D
O
H
E
L
L
I
F
A
T
)
E
8
D
8
F
D
O
V
T
A 1185 1185
I
N
(
M
I
T
L
E
E
F
N
I
N
O
I
T 1180 1180
A
V
E
L
E
Y
C
N
1175 1175 E
G
H
A
N
T
,
N
Y
E
H T
)
M
N
S
E
N
U
G
1170 1170 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 1165 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L A B C D E F G L
CROSS SECTION LOCATION I
A
H
R
1160 E
D
9800 10000 10200 10400 10600 10800 11000 11200 11400 11600 11800 12000 12200 12400 E
F STREAM DISTANCE IN FEET ABOVE OLD DUBLIN ROAD 111P 156 156 1% ANNUAL CHANCE BACKWATER FROM BEAVER BROOK NO. 1
E
G
D
I
R
B
H
8 152 D 152
T
D
K
I
3
A
A
O
O
W
E
O
O
R
T
E
R
R
U
L
C
G
B
I
O
N
O
A
N
R
E
H
R
E
U
E E
D
T
L
T
G
L
F
U
A
D
O
N
O
E
K
T
G
S
O
S
H
D
O
148 C 148
E
E
O
H
L
I
R
S
A
F
B
W
O
D
R
N
O
P
P
D
144 144 D
O
N
O A
L
L
S
F
I
)
8
8
D
V
A 140 140
N
(
T
E
E
F
N
I
N
O
I
T 136 136
A
V
E
L
E
Y
C
N
132 132 E
G
H
A
N G
T
,
N
Y
E
E F T
)
M
N
S
E
N
U
G
128 128 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 124 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L A B C D L
CROSS SECTION LOCATION I
A
H
R
120 E
D
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH GOLDEN BROOK 112P 160 160
156 156
E
D
Y
Y
R
R
K
A
A
S
T
T 152 152 O
E
U
U
D
O
B
B
L
I
A
I
I
R
R
O
R
F
B
T
R
T
F
E
F
O
D
O
T
O
R
N
A
E
E
V
C
C
O
I
P
N
R
N
P
E
E
P
D
U
U
D
148 L 148
L
O
F
F
N
N
N
O A
O
O
L
L
C
C
S
F
I
)
8
8
D
V
A 144 144
N
(
T
E
E
F
N
I
N
O
I
T 140 140
A
V
E
L
E
Y
Y
C
D
U
N
T 136 136 E
S
G
H
D
A
E
N
L
I
T
,
A
N
T
Y
E
E
T
D
)
M
F
N
S
E
O
N
U
G
T
I
132 132 O
I
A
O
M
T
I LEGEND N
L
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 128 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L H I L
CROSS SECTION LOCATION I
A
H
R
124 E
D
5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH GOLDEN BROOK 113P 305 305 1% ANNUAL CHANCE BACKWATER FROM BABOOSIC BROOK
E
G
D
T
I
T
R
R
Y
N
H
K
E
B
E
295 A 295
T
N
V
O
I
1
M
L
W
O
O
I
W
0
T
U
H
R
T
1
U
C
E
G
B
C
I
B
C
Y
D
U
H
C
A
A
N
I
R
A
Y
E
S
D
W
T
O
E
U
O
S
A
H
R L
L
O
E
O
N
G
F
S I
B
E
R
O
N
E
H
K
A
L R
S
C
O
I
Y
B
G
E
285 285 O C
A
O
E
T
R
N
O
L
A
I
T
R
S
F
B
O
H
R
S
I
P
L
G
D
275 275 N
O
E
O
E
L
O
J
F
)
8
8
D
V
A 265 265
N
(
T
E
E
F
N
I
N
O
I
T 255 255
A
V
E
L
E
Y
C
N
245 245 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
235 235 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 225 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B B
STREAM BED M
S
E
L
L A C D E L
CROSS SECTION LOCATION I
A
H
R
215 E
D
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH BABOOSIC BROOK 114P 320 320
310 310
K
O
E
K
O
G
R O
D
B
O
I
R
T R
B
K
S
B
S
R
S
300 300 O
D E
Y
U
A
O
L
T
H
I
O
T
R
K
R
E
F
R
B
B
Y
A
O
E
F
P
H
L
O
F
R
E
S
I
E
O
E
P
L
R
C
E
G
N
G
C
E
D
E
N
N
290 U 290
E
C
O
L
E
U
A
F
L
R
O
E
N
F
O
O
L
N
O
H
C
O
J
F
C
)
8
8
D
V
A 280 280
N
(
T
E
E
F
N
I
N
O
I
T 270 270
A
V
E
L
E
Y
C
N
260 260 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
250 250 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 240 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L F G L
CROSS SECTION LOCATION I
A
H
R
230 E
D
7000 8000 9000 10000 11000 12000 13000 14000 15000 16000 17000 18000 19000 20000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH BABOOSIC BROOK 115P 355 355
E
345 G 345
D
I
R
B
D
A
O
R
K
Y
O
D
K
O
S
U
R
T
335 335 O
E
B
S
O
L
D I
R
E
F
L
B
I
A O
H
T
R
E
S
I
D
P
L
F
G
O
D
N 325 T 325
I
O
E
M
I
O
E
L
L
O
J
F
)
8
8
D
V
A 315 315
N
(
T
E
E
F
N
I
N
O
I
T 305 305
A
V
E
L
E
Y
C
N
295 295 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
285 285 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 275 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L H I L
CROSS SECTION LOCATION I
A
H
R
265 E
D
14000 15000 16000 17000 18000 19000 20000 21000 22000 23000 24000 25000 26000 27000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH BABOOSIC BROOK 116P 130 130 1% ANNUAL CHANCE BACKWATER FROM MERRIMACK RIVER
T
I
M
I
L
Y
E
D
T
U
A
T
R 125 D 125
S
O
A
P
D
O
E
R
R
L
O
I
D
C
A
E
T
T
N
E
R
O
D
E
S
S
F
D
E
O
U
S
D
H
T
120 120
I
E
F
M
L
O
I
K
I
L
N
O
F
W
O
O
O
R
T
R
B
P
T
I
D
115 115 M
I
O
L
O
L
F
)
8
8
D
V
A 110 110
N
(
T
E
E
F
N
I
N
O
I
T 105 105
A
V
E
L
E
Y
C
N
100 100 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
95 95 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 90 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L A B C L
CROSS SECTION LOCATION I
A
H
R
85 E
D
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 E
F STREAM DISTANCE IN FEET ABOVE TOWN OF HUDSON CORPORATE LIMIT 117P 190 190 1% ANNUAL CHANCE BACKWATER EFFECTS FROM NASHUA RIVER
H
185 Y 185
T
R
I
D
D
E
A
U
W
V
F
I
T
O
E
R
O
S
R
C
E
T
A
D
N
I
T
E
E
U
L
M
A
U
H
I
I
L
V
L
S
A
I
F
A
T
R
N
E
N
P
S
O
D
K 180 C 180
E
O
L
I
O
F
R
B
O
R
D
E
P
E
R
D 175 175
E
O
L
O
Y
L
L
F
)
8
8
D
V
A 170 170
N
(
T
E
E
F
N
I
N
O
I
T 165 165
A
V
E
L
E
CULVERT Y
C
N
160 160 E
G
H
A
N
T
,
N CULVERT Y
E
C D T
)
M
N
S
E
N
U
G
1
155 155 O
1
I
A
O
1
T
LEGEND N
E
C
C
I
A
T
U 0.2% ANNUAL CHANCE FLOOD D
H
M
O
S
I
R
G
Y 1% ANNUAL CHANCE FLOOD R
E
C
U
U
T
J
A
N
O
T 2% ANNUAL CHANCE FLOOD
L
E
S
L 150 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L A B L
CROSS SECTION LOCATION I
A
H
R
145 E
D
0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NASHUA RIVER 118P 205 205 1% ANNUAL CHANCE BACKWATER FROM BABOOSIC BROOK
K
O
O
R
B D
A
200 E 200
IC
O
G
S
D
R
ID
O
E
A
R
O
G
O
B
B
ID R
A
N
T
R
E
B
D
IR
B
H
O
D
W
IT
O
O
S
L
W
W
E
195 195 MCQUADE BROOK
E
IL
C
W
N
IL
E
F
U
L
O
F
N
R
O
C
P
190 190 D
O
O
L
F
)
8
8
D
V
A 185 185
(N
T
E
E
F
IN
N
IO
T 180 180
A
V
E
L
E
Y
C
N
175 175 E
G
H
A
T
, N
N
Y
E
T
)
M
N
S
E
N
U 170 170 G
IO
A
O
T LEGEND N
C IC
A
0.2% ANNUAL CHANCE FLOOD D
H
M
IS
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
N
J 2% ANNUAL CHANCE FLOOD O
L
E
L 165 R
G
(A
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
L
E
A B C L
CROSS SECTION LOCATION IL
A
H
R
160 E
D
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH BABOOSIC BROOK 119P 225 225
D
A
O
R
S
IN
K
N
E 220 J 220
215 215 S
E
IL
F
O
R
P
210 210 D
O
O
MCQUADE BROOK
L
F
)
8
8
D
V
A 205 205
(N
T
E
E
F
IN
N
IO
T 200 200
A
V
E
L
E
Y
C
N
195 195 E
G
H
A
T
, N
N
Y
H E
T
)
M
N
S
E
N
U 190 190 G
IO
A
O
T LEGEND N
C IC
A
0.2% ANNUAL CHANCE FLOOD D
H
M
IS
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
N
J 2% ANNUAL CHANCE FLOOD O
L
E
L 185 R
G
(A
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
L
E
D E F G L CROSS SECTION LOCATION IL
A
H
R
180 E
D
4700 5200 5700 6200 6700 7200 7700 8200 8700 9200 9700 10200 10700 11200 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH BABOOSIC BROOK 120P 260 260
255 255
250 250 S
E
IL
F
O
R
P
D
245 M 245
O
A
D
D
O
A
F
O
MCQUADE BROOK
L
O
R
F
S
S
L
)
IN
8
A
A
8
E
M
B
D
E
V
R
A 240 240
(N
T
E
E
F
IN
N
IO
T 235 235
A
V
E
L
E
Y
C
N
230 230 E
G
H
A
T
, N
N
Y
E
T
)
M
N
S
E
N
U 225 225 G
IO
A
O
T LEGEND N
C IC
A
0.2% ANNUAL CHANCE FLOOD D
H
M
IS
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
N
J 2% ANNUAL CHANCE FLOOD O
L
E
L 220 R
G
(A
O 10% ANNUAL CHANCE FLOOD R
E
J B
STREAM BED M
S
L
E
I K L
CROSS SECTION LOCATION IL
A
H
R
215 E
D
11000 11500 12000 12500 13000 13500 14000 14500 15000 15500 16000 16500 17000 17500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH BABOOSIC BROOK 121P 290 290
W
O
L
F
IT
L
P
S
K
O
1 1
285 O 285
0 0
R
1 1
B
E E
E
T T
D
U U
A
O O
U
R R
Q
E E
c
T T
A A
M
T T
S
F
280 S S 280
E
O
E
C
IL
N
F
E
G
O
R
E
R
IV
P
D
275 275 D
O
O
MCQUADE BROOK
L
F
)
8
8
D
V
A 270 270
(N
T
E
E
F
IN
N
IO
T 265 265
A
V
E
L
E
Y
C
N
260 260 E
G
H
A
S
T
, N
N
Y
E
R T
)
M
N
S
E
N
U 255 255 G
IO
A
O
T LEGEND N
C IC
A
0.2% ANNUAL CHANCE FLOOD D
H
M
IS
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
N
J 2% ANNUAL CHANCE FLOOD O
L
E
L 250 R
G
(A
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
L
E
L M N O P Q L
CROSS SECTION LOCATION IL
A
H
R
245 E
D
13200 13700 14200 14700 15200 15700 16200 16700 17200 17700 18200 18700 19200 19700 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH BABOOSIC BROOK 122P 295 295
290 290
285 285 S
E
IL
F
O
R
P
280 280 D
O
O
MCQUADE BROOK
L
F
)
8
Y
8
D
D
D
A
U
V
T
O
A 275 275
S
R
T D
(N
E
S
T
E
R
IL
E
E
A
H
F
T
E
M
IN
D
A
N
F
H
IO
T O
T
R
270 IT 270
A
O
V
N
IM
E
L
L
E
Y
C
W N
265 265 E
G
H
A
V
T
, N
N
Y
E
U T
)
M
N
S
E
N
U 260 260 G
IO
A
O
T LEGEND N
C IC
A
0.2% ANNUAL CHANCE FLOOD D
H
M
IS
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
N
J 2% ANNUAL CHANCE FLOOD O
L
E
L 255 R
G
(A
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
L
E
T L
CROSS SECTION LOCATION IL
A
H
R
E
D
19700 20200 20700 21200 21700 22200 22700 23200 23700 24200 24700 25200 25700 26200 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH BABOOSIC BROOK 123P 268 268
266 266 ROAD
W
O E GIRLS
L
F
S
264 GAG 264
E
IT
L
IL LIMIT OF DETAILED STUDY
P
F
S
O DIVERGENCE FROM MCQUADE BROOK
R
P
262 262 D
O
O
L
F
)
8
8
MCQUADE BROOK
D
V
A 260 260
(N
T
E
E
F
IN
N
IO
T 258 258
A
V
E
L
E
Y
C
N
256 256 E
G
H
A
T
, N
N
Y
E
T
)
M
N
S
E
N
U 254 254 G
IO
A
O
T LEGEND N
C IC
A
0.2% ANNUAL CHANCE FLOOD* D
H
M
IS
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
N
J 2% ANNUAL CHANCE FLOOD* O
L
E
L 252 R
G
(A
O 10% ANNUAL CHANCE FLOOD* R
E
B
STREAM BED M
S
L
E
L
CROSS SECTION LOCATION IL
A
H
* DATA NOT AVAILABLE R
250 E
D
0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 E
F STREAM DISTANCE IN FEET ABOVE GRAFTON DRIVE 124P 150 150 HIGH CHORD = 151.0 HIGH CHORD = 151.0
)
)
T
T
Y
S 140 S 140
R
E
A
A
E
W
(
(
D
Y
N
Y
A
U
A
O
W
W
B
H
H
G
E
G
I
I
T
H
H
A
L
S
L
T
R
A
S 130 A 130
I
E
I
E
T
T
L
V
N
I
I
N
E
E
F
R
R
R
E
E
O
K
F
F
C
R
M
M
U
A
U
P
C
C
M
R
R
I
I
I
D
C
C
120 120 R
O
R
O E
L
M
F
)
8
8
D
V
A 110 110
N
(
T
E
E
F
N
I
N
O
I
T 100 100
A
V
E
L
E
Y
C
N
90 90 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
80 80 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 70 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L A B L
CROSS SECTION LOCATION I
A
H
R
60 E
D
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 E
F STREAM DISTANCE IN FEET ABOVE MA/NH STATE BOUNDARY 125P 140 140
F 130 F 130
K
K
O
O
O
O
O
E
E
O
R
C
C
R
B
N
N
B
E
E
N
D
U
U
O
N
L
L
F
F
O
M
L
N
N
C
E
A
O
O
S
S
S
C
C
120 120 R
E
E
L
V
I
I
F
R
O
K
C
R
A
P
M
I
D
110 110 R
O
R
O E
L
M
F
)
8
8
D
V
A 100 100
N
(
T
E
E
F
N
I
N
O
I
T 90 90
A
V
E
L
E
Y
C
N
80 80 E
G
H
A
N
T
,
N
Y
E
C T
)
M
N
S
E
N
U
G
70 70 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 60 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L
L
CROSS SECTION LOCATION I
A
H
R
50 E
D
10000 11000 12000 13000 14000 15000 16000 17000 18000 19000 20000 21000 22000 23000 E
F STREAM DISTANCE IN FEET ABOVE MA/NH STATE BOUNDARY 126P 140 140
130 130
S 120 120 R
E
E
L
V
I
I
F
R
O
K
C
R
A
P
M
I
D
110 110 R
O
R
O E
L
M
F
)
R
8
E
8
V
I
D
R
)
)
V
T
T
A 100 100
A
S
S
N
U
E
(
A
H
E
W
T
S
(
(
E
A
1
E
1
N
1
F
1
1
F
1
N
I
O
E
E
T
T
E
N
U
C
U
O
I
O
O
N
T
R
E 90 R 90
A
U
V
L
E
F
L
N
E
O
C
Y
C
N
80 80 E
G
H
A
N
F
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
70 70 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 60 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L D E L
CROSS SECTION LOCATION I
A
H
R
50 E
D
23000 24000 25000 26000 27000 28000 29000 30000 31000 32000 33000 34000 35000 36000 E
F STREAM DISTANCE IN FEET ABOVE MA/NH STATE BOUNDARY 127P F 140 R 140
E
K
F
O
V
O
O
I
E
O
R
E
C
R
C
N
K
B
E
N
C
E
U
E
U
L
U
S
H
F
L
A
C
F
N
I
H
N
O
N
C
O
C
N
130 C 130
E
P
S 120 120 R
E
E
L
V
I
I
F
R
O
K
C
R
A
P
M
I
D
110 110 R
O
R
O E
L
M
F
)
8
8
D
V
A 100 100
N
(
T
E
E
F
N
I
N
O
I
T 90 90
A
V
E
L
E
Y
C
N
80 80 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
70 70 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 60 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L G L
CROSS SECTION LOCATION I
A
H
R
50 E
D
36000 37000 38000 39000 40000 41000 42000 43000 44000 45000 46000 47000 48000 49000 E
F STREAM DISTANCE IN FEET ABOVE MA/NH STATE BOUNDARY 128P 150 150
K
K
O
O
O
O
R
R
B
B
G
K
A
O
E
O
K
C
N
I
E 140 T 140
S
A
E
N
N
F
F
O
O
E
E
C
C
N
N
E
E
U
U
L
L
F
S
F
R 130 N 130
E
N
E
O
O
L
V
C
I
C
I
F
R
O
K
C
R
A
P
M
I
D
120 120 R
O
R
O E
L
M
F
)
8
8
D
V
A 110 110
N
(
T
E
E
F
N
I
N
O
I
T 100 100
A
V
E
L
E
Y
C
N
90 90 E
G
H
A
N
T
,
N
Y
E
T
I )
M
N
S
E
N
U
G
80 80 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 70 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L H L
CROSS SECTION LOCATION I
A
H
R
60 E
D
49000 50000 51000 52000 53000 54000 55000 56000 57000 58000 59000 60000 61000 62000 E
F STREAM DISTANCE IN FEET ABOVE MA/NH STATE BOUNDARY 129P 150 150
R
E
V
I
R
N
A
G
E
H
U
140 O 140
S
H
T
I
W
E
C
N
E
U
L
S
R 130 F 130
E
N
E
O
L
V
I
I
C
F
R
O
K
C
R
A
P
M
I
D
120 120 R
O
R
O E
L
M
F
)
8
8
D
V
A 110 110
N
(
T
E
E
F
N
I
N
O
I
T 100 100
A
V
E
L
E
Y
C
N
90 90 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
80 80 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 70 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L J L
CROSS SECTION LOCATION I
A
H
R
60 E
D
62000 63000 64000 65000 66000 67000 68000 69000 70000 71000 72000 73000 74000 75000 E
F STREAM DISTANCE IN FEET ABOVE MA/NH STATE BOUNDARY 130P 150 150
K
O
F
O
O
R
B
E
C
B
N
U
E
L
U
C
L
F
R
E 140 N 140
T
O
N
C
I
O
P
S 130 130 R
E
E
L
V
I
I
F
R
O
K
C
R
A
P
M
I
D
120 120 R
O
R
O E
L
M
F
)
8
8
D
V
A 110 110
N
(
T
E
E
F
N
I NORMAL WATER SURFACE
N
O
I
T 100 100
A
V
E
L
E
Y
C
N
90 90 E
G
H
A
N
T STREAM BED DATA NOT AVAILABLE ,
N
Y
E
T
)
M
N
S
E
N
U
G
80 80 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 70 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L K L L
CROSS SECTION LOCATION I
A
H
R
60 E
D
75000 76000 77000 78000 79000 80000 81000 82000 83000 84000 85000 86000 87000 88000 E
F STREAM DISTANCE IN FEET ABOVE MA/NH STATE BOUNDARY 131P 170 170
K
K
O
O
O
O
D
R
R
R
A
B
B
E
O
V
S
S
I
R
A
A
R
L
I
H
H
160 A 160
A
O
O
R G
C
C
O
E
I
E
T
N
T
L
I
A
T
F
E
A
T
O
R
I
M
L
G
E
D
F
C
F
N
O
O N
A
E
E
E
S
U
R
N
C
C
150 L 150
E
O
N
E
N
F
E
E T
L
N V
I
I
S
U
U
O
L
L
O
F
R
C
F
F
B
N
N
O
K
O
O
C
R
C
C
A
P
M
I
D
140 140 R
O
R
O E
L
M
F
)
8
8
D
V
A 130 130
N
(
T
E
E
F
N
I
N
O
I
T 120 120
A
V
E
L
E
Y
C
N
110 NORMAL WATER SURFACE 110 E
G
H
A
N
T
,
NORMAL WATER SURFACE N
Y
E
T
)
M
N
S
E
N
U
G
100 100 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 90 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED* M
S
E
L
CROSS SECTION LOCATION L
L
I
A
H
*DATA NOT AVAILABLE R
80 E
D
88000 89000 90000 91000 92000 93000 94000 95000 96000 97000 98000 99000 100000 101000 E
F STREAM DISTANCE IN FEET ABOVE MA/NH STATE BOUNDARY 132P 180 180
R
E
V
I
R
R
E
G
K
V
I
O
O
R
U
O
Q
R
G
A
B
O
E
T
U
N
U 170 A 170
Q
A
N
C
A
E
M
S
T
I
V
W P
A
A
O
C
H
Y
B
S
C
I
T
I
F
P
N
C
O
A
F
R
N
E
O
E
B
C
E
E
N
S
C
H
R
U
E 160 3 160
T
N
E
Q
E
9
U
E
R
L
L
1
V
U
O
F I
I
L
E
N
N
F
F
R
T
O
F
N
A
O
C
O
K
O
T
C
S
E
C
R
R
C
A
P
E
N
T
E
M
N
I
U
D
I
L
150 150 R
F
O
R
N
O
O E
C
L
M
F
)
8
8
D
V
A 140 140
N
(
T
E
E
F
N
I
N
O
I
T 130 130
A
V
E
L
E
Y
C
N
120 NORMAL WATER SURFACE 120 E
G
H
A
N
T
,
N NORMAL WATER SURFACE Y
E
T
)
M
N
S
E
N
U
G
110 110 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 100 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED* M
S
E
L CROSS SECTION LOCATION
L
L
I
A
H
*DATA NOT AVAILABLE R
90 E
D
101000 102000 103000 104000 105000 106000 107000 108000 109000 110000 111000 112000 113000 114000 E
F STREAM DISTANCE IN FEET ABOVE MA/NH STATE BOUNDARY 133P 200 T 200
E
E
R
T
S
G
D
A
A
E
O
K
R
S
T
L
E
O
I
E 190 T 190
A
M
E
R
R
A
E
T
E
R
S
N
T
I
E
S
A
G
E
D
M
I
T
I
R
D
N
B
N
A
T
A
R
S S
G
R
N 180 E 180
E
O
E
W
T
L
V
I
I
S
O
F
R
B
O
K
C
R
A
P
M
I
D
170 170 R
O NORMAL WATER SURFACE R
O E
L
M
F
)
8
8
D
V
A 160 160
N
(
T
E
E
F
K
N
I
K
O
O
O
N
O
R
O
I
R
B
T
150 B 150
K
A
Y
C
V
E
A
A
L
L
R
E
B
F
F
O
O
E
E
C
Y
C
N
C
E
N
E
N
U
L
U 140 140 E
F
L
G
F
H
N
N
O
A
N
O
C
C
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
130 130 O
I
A
O
T LEGEND N
C
M
C
I
A
A
D
D 0.2% ANNUAL CHANCE FLOOD
H
M
S
I
G
G
Y
A NORMAL WATER SURFACE 1% ANNUAL CHANCE FLOOD R
E
C
U
U
K
J
N
S 2% ANNUAL CHANCE FLOOD O
L
E
O
L 120 R
G
M
A
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED* M
S
E
L
L CROSS SECTION LOCATION L
I
A
*DATA NOT AVAILABLE H
R
110 E
D
114000 115000 116000 117000 118000 119000 120000 121000 122000 123000 124000 125000 126000 127000 E
F STREAM DISTANCE IN FEET ABOVE MA/NH STATE BOUNDARY 134P 230 230
220 220
S 210 210 R
E
E
L
V
I
I
F
R
O
K
C
R
A
P
M
I
D
200 200 R
O
R
O E
L
M
F
)
8
8
D
V
A 190 190
N
(
T
E
E
F
N
I
N
O
I
T 180 180
A
V
E
L
E
Y
C
N
170 170 E
NORMAL WATER SURFACE G
H
A
N
T
,
K
N
Y
O
E
O
T
)
R
M
N
B
S
E
E
N
U
G
N
160 160 O
I
A
O
O
T
T LEGEND N
C
S C
I
A
L
L
D
I 0.2% ANNUAL CHANCE FLOOD
H
M
S
I
M
G
Y
R F 1% ANNUAL CHANCE FLOOD
C
O
U
U
J
E
N
O
C 2% ANNUAL CHANCE FLOOD
L
E
N
L 150 R
G
E
A
(
O
U 10% ANNUAL CHANCE FLOOD R
L
E
F B
N
STREAM BED* M
S
O
E
L
C
CROSS SECTION LOCATION L L
I
A
*DATA NOT AVAILABLE H
R
140 E
D
127000 128000 129000 130000 131000 132000 133000 134000 135000 136000 137000 E
F STREAM DISTANCE IN FEET ABOVE MA/NH STATE BOUNDARY 135P 230 230
Y
220 R 220
3
A
9
D
E
N
T
U
A
O
T
B
S
Y
R
T
E
T
N
N
U
I
S
O 210 210 R
E
C
E
L
V
I
I
F
R
O
K
C
R
A
P
M
I
D
200 200 R
O
R
O E
L
M
F
)
8
8
D
V
A 190 190
N
(
T
E
E
F
N
I
N
O
I
T 180 180
A
V
E
L
E
Y
C
NORMAL WATER SURFACE N
170 170 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
160 160 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 150 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED* M
S
E
L
L CROSS SECTION LOCATION L
I
A
*DATA NOT AVAILABLE H
R
140 E
D
137000 138000 139000 140000 141000 142000 143000 144000 145000 146000 147000 148000 149000 150000 E
F STREAM DISTANCE IN FEET ABOVE MA/NH STATE BOUNDARY 136P 400 400 1% ANNUAL CHANCE BACKWATER FROM SOUTH BRANCH PISCATAQUOG RIVER
H
C
N
M
A
A
R
D
B
R
E
L
H 390 D 390
L
V
I
I
T
A
E
R
U
O
M
R
G
O
R
E
G
D
W
S
I
O E
V
A
R
L I
H U
S
B
A
T
Q
R
I
T
D
D
A
O
W
R
E
T
G
O
E
N
E A
F
O
V
O
I
C C
S
U
D
S R
N 380 I 380
E
E
N
Q
P
U
A
L
A
L
I
B
F
T
A
F
N
A
O
O
C
C
R
S
I
P
P
H 370 370 D
C
O
N
O
A
L
R
F
B
)
E
8
L
8
D
D
V
D
I
A 360 360
N
(
M
T
E
E
F
N
I
N
O
I
T 350 350
A
V
E
L
E
Y
C
N
340 340 E
G
H
A
N
T
,
N
Y
E
E T
)
M
N
S
E
N
U
G
330 330 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 320 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L A B C D L
CROSS SECTION LOCATION I
A
H
R
310 E
D
0 400 800 1200 1600 2000 2400 2800 3200 3600 4000 4400 4800 5200 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOUTH BRANCH PISCATAQUOG RIVER 137P 410 410
400 400
R
E
V
I
R
E
G
G
O
D
I
S
U
390 R 390
E
Q
B
L
A
D I
T
E
F
H
A
C
O
C
A
R
E
S
I
R
P
P
B
-
D
H
D 380 E 380
C
N
O
O
N
O
D
A
N
L
R
A
F
B
B
A
)
E
8
L
8
D
D
V
D
I
A 370 370
N
(
M
T
E
E
F
N
I
N
O
I
T 360 360
A
V
E
L
E
Y
C
N
350 350 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
340 340 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 330 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L F G L
CROSS SECTION LOCATION I
A
H
R
320 E
D
5200 5600 6000 6400 6800 7200 7600 8000 8400 8800 9200 9600 10000 10400 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOUTH BRANCH PISCATAQUOG RIVER 138P 410 410
D
A
400 O 400
R
R
H
E
C
N V
I
A
R
R
B
G
E
L
O
D
S
U
D
390 I 390
E
Q
M
L
A
I
T
F
A
O
C
R
S
I
P
P
H 380 380 D
C
O
N
O
A
L
R
F
B
)
E
8
L
8
D
D
V
D
I
A 370 370
N
(
M
T
E
E
F
N
I
N
O
I
T 360 360
A
V
E
L
E
Y
C
N
350 350 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
340 340 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 330 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L H I L
CROSS SECTION LOCATION I
A
H
R
320 E
D
10400 10800 11200 11600 12000 12400 12800 13200 13600 14000 14400 14800 15200 15600 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOUTH BRANCH PISCATAQUOG RIVER 139P 420 420
410 410
R
E
V
I
R
G
O
S 400 400 U
E
Q
L
A
I
T
F
A
O
C
R
S
I
P
P
H 390 390 D
C
O
N
O
A
L
R
F
B
)
E
8
L
8
D
D
V
D
I
A 380 380
N
(
M
T
E
E
F
N
I
N
O
I
T 370 370
A
V
E
L
E
Y
C
N
360 360 E
G
H
A
N
T
,
N
Y
E
J T
)
M
N
S
E
N
U
G
350 350 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 340 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L
L
CROSS SECTION LOCATION I
A
H
R
330 E
D
15600 16000 16400 16800 17200 17600 18000 18400 18800 19200 19600 20000 20400 20800 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOUTH BRANCH PISCATAQUOG RIVER 140P 440 440
430 7 430
7
E
R
T
E
U
V
I
O
R
R
E
T
G
A
O
T
S
U 420 S 420
E
Q
L
A
I
T
F
A
O
C
R
S
I
P
P
H 410 410 D
C
O
N
O
A
L
R
F
B
)
E
8
L
8
D
D
V
D
I
A 400 400
N
(
M
T
E
E
F
N
I
N
O
I
T 390 390
A
V
E
L
E
Y
C
N
380 380 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
370 370 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 360 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L K L L
CROSS SECTION LOCATION I
A
H
R
350 E
D
20800 21200 21600 22000 22400 22800 23200 23600 24000 24400 24800 25200 25600 26000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOUTH BRANCH PISCATAQUOG RIVER 141P 480 480
K
O
O
R
B
470 K E 470
C
N
O
A
R
L
C
E
A
Y
E
V
T
I
P
R
R
E
F
H
O
G
G
E
U
O
C
O
S
N
U
D 460 E 460
E
Q
U
L
L
A
I
F
T
N
F
O
A
O
C
C
R
S
I
P
P
H 450 450 D
C
O
N
O
A
L
R
F
B
)
E
8
L
8
D
D
V
D
I
A 440 440
N
(
M
T
E
E
F
N
I
N
O
I
D
D
T
A
M
430 A 430
A
O
A
O
V
R
D
R
E
L L
L
L
L
E
L
L
I
I
I
H
M
M
S
R
R
R
Y
E
E
E
K
K
C
D
C
C
N
N
U
U
A
E
420 T 420
T
S
G
H
A
N
T
,
N
Y
E
O P T
)
M
N
S
E
N
U
G
410 410 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 400 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L M N L
CROSS SECTION LOCATION I
A
H
R
390 E
D
26000 26400 26800 27200 27600 28000 28400 28800 29200 29600 30000 30400 30800 31200 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOUTH BRANCH PISCATAQUOG RIVER 142P 530 530
520 520
R
E
V
I
R
G
O
M
S
U
510 A 510
E
Q
D
L
A
L
I
L
T
I
F
A
M
O
C
D
E
R
S
I
H
P
P
C
A
E
H
D
500 R 500
C
O
B
N
O
A
L
R
F
B
)
E
8
L
8
D
D
V
D
I
A 490 490
N
(
M
T
E
E
F
N
I
N
O
I
T 480 480
A
V
E
L
E
Y
C
N
470 470 E
G
H
A
N
T
,
N
Y
E
S T
)
M
N
S
E
N
U
G
460 460 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 450 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L Q R L
CROSS SECTION LOCATION I
A
H
R
440 E
D
31200 31600 32000 32400 32800 33200 33600 34000 34400 34800 35200 35600 36000 36400 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOUTH BRANCH PISCATAQUOG RIVER 143P 560 560
K
O
2
O
Y
.
R
D
O
B
D
U
N
A
T 550 N 550
O
S
O
M
R
T
A
R
D
X
N
E
D
E
L
U
R
I
L
V
B
U
L
I
A
I
B
F
T
R
L
M
E
O
O
D
D
G
E
C
E
F
C
O
T
H
O
N
S
S
U
C
E
T
540 A 540
A I
E
U
Q
E
E
L
M L
A
F
I
R
I
L
N
B
T
F
O
A
C
O
C
R
S
I
P
P
H 530 530 D
C
O
N
O
A
L
R
F
B
)
E
8
L
8
D
D
V
D
I
A 520 520
N
(
M
T
E
E
F
N
I
N
O
I
T 510 510
A
V
E
L
E
Y
C
N
500 500 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
490 490 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 480 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L T U L
CROSS SECTION LOCATION I
A
H
R
470 E
D
36400 36800 37200 37600 38000 38400 38800 39200 39600 40000 40400 40800 41200 41600 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SOUTH BRANCH PISCATAQUOG RIVER 144P 475 475 1% ANNUAL CHANCE BACKWATER FROM STONY BROOK
H
470 M 470
T
D
I
A
K
N
D
O
W
A
O
D
E
D
R
E
C
E
B
N
N
H
O
E
Y
C
D
U
N
A
L
N
O
E
F
A
T
R
N
S
B
S
B
O 465 A 465
C
E
L
I
K
F
O
O O
R
R
B
P
L
L
D 460 460 I
O
M
O
L
F
)
8
8
D
V
A 455 455
N
(
T
E
E
F
N
I
N
O
I
T 450 450
A
V
E
L
E
Y
C
N
445 445 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
440 440 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 435 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L A L
CROSS SECTION LOCATION I
A
H
R
430 E
D
0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 0.22 0.24 0.26 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 145P 505 505
500 500
495 495 S
E
L
I
K
F
O
O O
R
R
B
P
L
L
D 490 490 I
O
M
O
L
F
)
8
8
D
V
A 485 485
N
(
T
E
E
F
N
I
N
O
I
T 480 480
A
V
E
L
E
Y
C
N
475 475 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
470 470 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 465 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L
L
CROSS SECTION LOCATION I
A
H
R
460 E
D
0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.38 0.40 0.42 0.44 0.46 0.48 0.50 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 146P 535 535
530 530
525 525 S
E
L
I
K
F
O
O O
R
R
B
P
L
L
D 520 520 I
O
M
O
L
F
)
8
8
D
V
A 515 515
N
(
T
E
E
F
N
I
N
O
I
T 510 510
A
V
E
L
E
Y
C
N
505 505 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
500 500 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 495 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L
L
CROSS SECTION LOCATION I
A
H
R
490 E
D
0.46 0.48 0.50 0.52 0.54 0.56 0.58 0.60 0.62 0.64 0.66 0.68 0.70 0.72 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 147P 570 570
565 565
560 560 S
E
L
I
K
F
O
O O
R
R
B
P
L
L
D 555 555 I
O
M
O
L
F
)
8
8
D
V
A 550 550
N
(
T
E
E
F
N
I
N
O
I
T 545 545
A
V
E
L
E
Y
C
N
540 540 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
535 535 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 530 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L
L
CROSS SECTION LOCATION I
A
H
R
525 E
D
0.68 0.70 0.72 0.74 0.76 0.78 0.80 0.82 0.84 0.86 0.88 0.90 0.92 0.94 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 148P 605 605
600 600
595 595 S
E
L
I
K
F
O
O O
R
R
B
P
L
L
D 590 590 I
O
M
O
L
F
)
8
8
D
V
A 585 585
N
(
T
E
E
F
N
I
N
O
I
T 580 580
A
V
E
L
E
Y
C
N
575 575 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
570 570 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 565 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L B L
CROSS SECTION LOCATION I
A
H
R
560 E
D
0.72 0.74 0.76 0.78 0.80 0.82 0.84 0.86 0.88 0.90 0.92 0.94 0.96 0.98 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 149P 635 635
M
A
D
R
630 I 630
O
V
R
E
S
E
R
N
O
T
L
S 625 I 625
E
W
L
D
I
K
L
F
O
O
O O
R
R
B
P
L
L
D 620 620 I
O
M
O
L
F
)
8
8
D
V
A 615 615
N
(
T
E
E
F
N
I
N
O
I
T 610 610
A
V
E
L
E
Y
C
N
605 605 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
600 600 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 595 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L
L
CROSS SECTION LOCATION I
A
H
R
590 E
D
0.76 0.78 0.80 0.82 0.84 0.86 0.88 0.90 0.92 0.94 0.96 0.98 1.00 1.02 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 150P 665 665
Y
660 A 660
W
H
G
I
H
E
Y
R
F
C
A
S
655 A 655
E
S
I
L
I
K
F
O
O O
R
R
B
P
L
L
D 650 650 I
O
M
CULVERT O
L
F
)
8
8
D
V
A 645 645
N
(
T
E
E
F
N
I
N
O
I
T 640 640
A
V
E
L
E
Y
C
N
635 635 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
630 630 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 625 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L C L
CROSS SECTION LOCATION I
A
H
R
620 E
D
0.88 0.90 0.92 0.94 0.96 0.98 1.00 1.02 1.04 1.06 1.08 1.10 1.12 1.14 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 151P 675 675
670 670
665 665 S
E
L
I
K
F
O
O O
R
R
B
P
L
L
D 660 660 I
O
M
O
L
F
)
8
8
D
V
A 655 655
N
(
T
E
E
F
N
I
N
O
I
T 650 650
A
V
E
L
E
Y
C
N
645 645 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
640 640 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 635 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L D L
CROSS SECTION LOCATION I
A
H
R
630 E
D
1.14 1.16 1.18 1.20 1.22 1.24 1.26 1.28 1.30 1.32 1.34 1.36 1.38 1.40 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 152P 680 680
675 675
670 670 S
E
L
I
K
F
O
O O
R
R
B
P
L
L
D 665 665 I
O
M
O
L
F
)
8
8
D
V
A 660 660
N
(
T
E
E
F
N
I
N
O
I
T 655 655
A
V
E
L
E
Y
C
N
650 650 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
645 645 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 640 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L
L
CROSS SECTION LOCATION I
A
H
R
635 E
D
1.40 1.42 1.44 1.46 1.48 1.50 1.52 1.54 1.56 1.58 1.60 1.62 1.64 1.66 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 153P 685 685
680 680
D
A
O
R
M
R
A
F
675 675 S
E
L
I
K
F
O
O O
R
R
B
P
L
L
D 670 670 I
O
M
O
L
F
)
8
8
D
V
A 665 665
N
(
T
E
E
F
N
I
N
O
I
T 660 660
A
V
E
L
E
Y
C
N
655 655 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
650 650 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 645 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L E L
CROSS SECTION LOCATION I
A
H
R
640 E
D
1.66 1.68 1.70 1.72 1.74 1.76 1.78 1.80 1.82 1.84 1.86 1.88 1.90 1.92 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 154P 690 690
685 685
680 680 S
E
L
I
K
F
O
O O
R
R
B
P
L
L
D 675 675 I
O
M
O
L
F
)
8
8
D
V
A 670 670
N
(
T
E
E
F
N
I
N
O
I
T 665 665
A
V
E
L
E
Y
C
N
660 660 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
655 655 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 650 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L
L
CROSS SECTION LOCATION I
A
H
R
645 E
D
1.92 1.94 1.96 1.98 2.00 2.02 2.04 2.06 2.08 2.10 2.12 2.14 2.16 2.18 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 155P 690 690
D
685 A 685
O
R
L
L
I
H
T
T
E
R
R
S
680 A 680
E
B
L
I
K
F
O
O O
R
R
B
P
L
L
D 675 675 I
O
M
O
L
F
)
8
8
D
V
A 670 670
N
(
T
E
E
F
N
I
N
O
I
T 665 665
A
V
E
L
E
Y
C
N
660 660 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
655 655 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 650 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L F L
CROSS SECTION LOCATION I
A
H
R
645 E
D
2.18 2.20 2.22 2.24 2.26 2.28 2.30 2.32 2.34 2.36 2.38 2.40 2.42 2.44 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 156P 695 695
690 Y 690
A
W
H
G
I
H
N
O
T
R
U
S
685 B 685
E
L
I
K
F
O
O O
R
R
B
P
L
L
D 680 680 I
O
M
O
L
F
)
8
8
D
V
A 675 675
N
(
T
E
E
F
N
I
N
O
I
T 670 670
A
V
E
L
E
Y
C
N
665 665 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
660 660 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 655 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L G L
CROSS SECTION LOCATION I
A
H
R
650 E
D
2.44 2.46 2.48 2.50 2.52 2.54 2.56 2.58 2.60 2.62 2.64 2.66 2.68 2.70 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 157P 710 710
705 705
D
D
M
A
A
A
O
O
D
R
R
L
L
L
E
L
I
I
T
M
M
A
E
V
E
I
Y
Y
R
R
R
P
F
S 700 F 700
E
L
I
K
F
O
O O
R
R
B
P
L
L
D 695 695 I
O
M
O
L
F
)
8
8
D
V
A 690 690
N
(
T
E
E
F
N
I
N
O
I
T 685 685
A
V
E
L
E
Y
C
N
680 680 E
G
H
A
N
T
,
N
Y
E
I T
)
M
N
S
E
N
U
G
675 675 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 670 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L H L
CROSS SECTION LOCATION I
A
H
R
665 E
D
2.70 2.72 2.74 2.76 2.78 2.80 2.82 2.84 2.86 2.88 2.90 2.92 2.94 2.96 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 158P 735 735
Y
D
U
Y 730 T 730
A
S
W
D
H
E
L
G
I
I
A
H
T
N
E
O
D
T
F
R
O
U
S
T
B
725 I 725
E
M
L
I
I
K L
F
O
O O
R
R
B
P
L
L
D 720 720 I
O
M
O
L
F
)
8
8
D
V
A 715 715
N
(
T
E
E
F
N
I
N
O
I
T 710 710
A
V
E
L
E
Y
C
N
705 705 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
700 700 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 695 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L
L
CROSS SECTION LOCATION I
A
H
R
690 E
D
2.96 2.98 3.00 3.02 3.04 3.06 3.08 3.10 3.12 3.14 3.16 3.18 3.20 3.22 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH STONY BROOK 159P 850 850
Y
Y
D
D
U
U
T 845 T 845
D
S
S
A
D
D
D
O
E
E
A R
L
L
I
I
O
W
A
A
R
E
T
T
I
T
E
E
V
R
D
D
I
G
D
F
F
N
O
O
O
S
L
T
T
I 840 I 840
E
K
M
M
L
I
I
I
L
L
O
F
O
O
R
B
R
E
P
S
D 835 835 O
O
O
M
O
L
F
)
8
8
D
V
A 830 830
N
(
T
E
E
F
N
I
N
O
I
T 825 825
A
V
E
L
E
Y
C
N
820 820 E
G
H
A
N
T
,
N
Y
E
J T
)
M
N
S
E
N
U
G
815 815 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L C E
L 810 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B B
STREAM BED M
S
E
L
L A D E F G H I L
CROSS SECTION LOCATION I
A
H
R
805 E
D
15500 16000 16500 17000 17500 18000 18500 19000 19500 20000 20500 21000 21500 22000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CONTOOCOOK RIVER 160P 1% ANNUAL CHANCE BACKWATER FROM MERRIMACK RIVER
E
E E
E G
G G
E
G
D
D D
I
G
M
I I
D
R
I
D
A
R R
I
B
R
D
B B
R
.
B
E
B
D D
O
L
T
A A
C
T
L
E
I
E
.
O O
E
V
E
G
R R
R
N
R
F
L L
T
I I
O
T
M
S
A A
S
S
R R
L
K
A
N
A
C
I
U
S
M M
N
A
A 140 H 140
E
J
A
S
& &
M
R
C
L
A
B B
I
E
N
F
V
I
O
R
R
A
P
U
H
D
130 130 S
O
A
N
O
L
F
)
8
8
D
V
A 120 120
N
(
T
E
E
F
N
I
N
O
I
T 110 110
A
V
E
L
E
Y
C
N
H
R
100 100 E
T
E
I
V
G
H
I
W
R
A
N
E
K
C
T
,
C
N
N
A
E
Y
E
U
M
T I K L
L
)
F
R
M
N
S
R
N
E
E
O
N
U
G
C
M
90 90 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 80 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B F B
STREAM BED M
S
E
L
L A C D E G H I J L
CROSS SECTION LOCATION I
A
H
R
E
D
0 1500 3000 4500 6000 7500 9000 10500 12000 13500 15000 16500 18000 19500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 161P 180 180
E
E
G
K
G
D
O
I
D
I
R O 170 F 170
R
B R
O
B
B
E
K
T
P
C
K
O
N
R
N
O
E
T
A
F
U
P
T
S
L
L
T
N
F
L
E
L
N
A
R
O
O
F
E
C
C
S
V
E
N
E 160 I 160
E
N
L
.
I
R
L
E
.
M
I
E
F
F
V
I
O
R
R
A
P
U
H
D
150 150 S
O
A
N
O
L
F
)
8
8
D
V
A 140 140
N
(
T
E
E
F
N
I
N
O
I
K
T
130 F 130
M
O
A
O
A
O
V
E
E
D
R
L
C
B
S
E
N
L
S
E
L
U
U
A
L
F M
F
E Y
E
N
T
C
N
O
I R
N
C
A
M
E
B 120 F 120
K
O
G
O
H
E
O
A
N
C
R
B
N
T
,
E
N
N
Y
U
I
L
E
A
T F U
R
)
N M
L
N
S
O
E
O
C
N
C
U
G
110 110 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 100 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
P B
STREAM BED M
S
E
L
L M N O Q R S T L
CROSS SECTION LOCATION I
A
H
R
E
D
19500 21000 22500 24000 25500 27000 28500 30000 31500 33000 34500 36000 37500 39000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 162P Y
H
K
R
T
T
I
O
A
E
O
D
1
W
E
R
N
1
R
E
B
1
U
T
C
O
E
D
S
N
B
E
T
E
S
E
I
U
U
Y
L
R
L
O
T
L
F
R
E
N
O
N
L
U
E
H
S
Y
O
T O
L
C
190 T 190
E
C
A
S
R
T
L
E
I
S
E
W
F
V
I
O
R
R
A
P
U
H
D
180 180 S
O
A
N
O
L
F
)
8
8
D
V
A 170 170
N
(
T
E
E
F
N
I
N
O
I
T 160 160
A
V
E
L
E
Y
C
N
150 150 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
140 140 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L
R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L V W X Y Z L
CROSS SECTION LOCATION I
A
H
R
E
D
39000 40500 42000 43500 45000 46500 48000 49500 51000 52500 54000 55500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 163P 180 180 1% ANNUAL CHANCE BACKWATER FROM MERRIMACK RIVER
R
E
V
I
R
T
K
R
E 170 C 170
E
D D
G
A
V
A A
3
D
L
M
I
O O
I
E
U
R
R R
R
T
C
B
R
U
D D
E
D
D
E E
O
E
A
M
R
M M
N
O
.
A A
H
O
S
R
.
T
N N
L
D
I
I
U
N N
N
A
W
S
U U
A
R
K
160 E 160
E
B
C
O
A
L
N
I
O
E
F
R
U
L
B
O
F
N
R
K
O
O
P
C
O
D CULVERT C
150 150 I
O
T
A
O
L
N
F
)
8
8
D
V
A 140 140
N
(
T
E
E
F CULVERT
N
I
N
O
I
T 130 130
A
V
E
L
E
E
E
V
I
K
Y
I
R
P
C
D
N
N
K
R
E
120 R 120
U
A
G
T
H
P
A
T
N
E
T
V
T
E
I
,
R
T
N
Y
E
U
E
V
C
E T
E
E
)
.
M
E
X
N
S
.
E
E
CULVERT F
N
U
G
110 110 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
CULVERT I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U CULVERT U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 100 R CULVERT G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M A S
E
L
L C D L
CROSS SECTION LOCATION I B A
H
R
90 E
D
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 164P 210 210
200 200
D
A
O
R
T
S
R
E
H
M
S
A
190 190 K
E
O
L
I
O
F
R
B
O
R
K
O
P
O
D
C
180 180 I
O
T
A
O
L
N
F
)
8
8
D
V
A 170 170
N
(
T
E
E
F
N
I
N
O I CULVERT T 160 160
A
V
E
L
E
Y
C
N
150 150 E
G
H
A
N
T
,
N
Y
E
H T
)
M
N
S
E
N
U
G
140 140 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 130 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L F G L
CROSS SECTION LOCATION I
A
H
R
120 E
D
6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 12500 13000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 165P 240 240
T
E
Y
D
L
A
A 230 T 230
O
U
W
R
O
D
O
E
D
K
O
N
M
L
A
O
A
F
L
P
D
F
K
S
O
O
N
T
O
E
I
C
E
S
I
M
R
I
K 220 T 220
E
L
G
A
O
L
N
I
O
F
R
B
O
R
K
O
P
O
D
C
210 210 I
O
T
A
O
L
N
F
)
8
8
D
V
A 200 200
N
(
T
E
E
M
F
A
D
N
I
N
O
I
T 190 190
A
V
E CULVERT
L
E
Y
C
N
180 180 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
170 170 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 160 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L I J K L
CROSS SECTION LOCATION I
A
H
R
150 E
D
13000 13500 14000 14500 15000 15500 16000 16500 17000 17500 18000 18500 19000 19500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 166P 135 HIGH CHORD = 136.2 135 1% ANNUAL CHANCE FLOOD BACKWATER FROM MERRIMACK RIVER
A
3
H
E
R
T
T 130 E 130
I
V
U
I
W
O
R
E
R
K
C
E
C
N
T
A
E
A
U
M
T
I
L
S
F
R
N
R
E
O
S
K
C 125 M 125
E
O
L
O
I
R
F
B
O
G
R
A
P
E
K
D
120 120 N
O
E
S
O
E
L
N
F
)
8
8
D
V
A 115 115
N
(
T
E
E
F
N
I
N
O
I
T 110 110
A
V
E
L
E
Y
C
N
105 105 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
100 100 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 95 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L A B L
CROSS SECTION LOCATION I
A
H
R
90 E
D
0 500 1000 1500 2000 2500 3000 3500 4000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 167P 160 160
155 155
Y
A
W
M
K
A
L
D
A
W
S 150 150 K
E
O
L
O
I
R
F
B
O
G
R
A
P
E
K
D
145 145 N
O
E
S
O
E
L
N
F
)
8
8
D
V
A 140 140
N
(
T
E
E
F
N
I
N
O
I
T 135 135
A
V
E
L
E
Y
C
N
130 130 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
125 125 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 120 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L C L
CROSS SECTION LOCATION I
A
H
R
115 E
D
4000 4500 5000 5500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 168P 190 190
185 E 185
V
I
R
D
D
R
A
Y
K
C
I
R
S
K
180 B 180
E
O
L
O
I
R
F
B
O
G
R
A
P
E
K
D
175 175 N
O
E
S
O
E
L
N
F
)
8
8
D
V
A 170 170
N
(
T
E
E
F
N
I
N
O
I
T 165 165
A
V
E
L
E
Y
C
N
160 160 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
155 155 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 150 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L D E L
CROSS SECTION LOCATION I
A
H
R
145 E
D
5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 169P 200 200
D
R
A
V
195 E 195
L
U
O
B
E
U
Q
R
E
U
S
K 190 Q 190
U
E
O
B
L
O
L
I
A
R
F
B
O
G
R
A
P
E
K
D
185 185 N
O
E
S
O
E
L
N
F
)
8
8
D
V
A 180 180
N
(
T
E
E
F
N
I
N
O
I
T 175 175
A
V
E
L
E
Y
C
N
170 170 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
165 165 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 160 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L F L
CROSS SECTION LOCATION I
A
H
R
155 E
D
11000 11500 12000 12500 13000 13500 14000 14500 15000 15500 16000 16500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 170P 200 200
Y
195 R 195
A
D
N
U
O
B
Y
T
N
U
S
K 190 O 190
E
C
O
L
O
I
R
F
B
O
G
R
A
P
E
K
D
185 185 N
O
E
S
O
E
L
N
F
)
8
8
D
V
A 180 180
N
(
T
E
E
F
N
I
N
O
I
T 175 175
A
V
E
L
E
Y
C
N
170 170 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
165 165 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 160 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L
L
CROSS SECTION LOCATION I
A
H
R
155 E
D
16500 17000 17500 18000 18500 19000 19500 20000 20500 21000 21500 22000 22500 23000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 171P 150 150 1% ANNUAL CHANCE BACKWATER FROM BEAVER BROOK NO. 1
1
D
H
.
145 F 145
F
T A
O
I
D
B
O
O
O
A
N
A
W
R
E
Y
E
Y
K
O
E
C
R
C
R
K
O
R
C
N
A
N
C
A
O
E
E
N
E
T
T
O
R
T
E
U
U
A
U
R
B
L
L
A
U
U
B
F
F
L
T
I
V
R
B
I
I
F
I
N
N
R
E
P
R
N
R
K
O
T
O
V
L
P
T S
O
C
C
A
U
O
C 140 E 140
P
E
O
B
L
R
I
B
F
O
W
R
O
D
P
A
E 135 135 D
O
M
O
W
L
E
F
N
)
8
8
D
V
A 130 130
N
(
T
E
E
F
N
I
N
O
I
T 125 125
A
V
E
L
E
Y
C
N
120 120 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
115 115 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 110 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L A B C L
CROSS SECTION LOCATION I
A
H
R
105 E
D
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH BEAVER BROOK NO. 1 172P 160 160
Y
D
U
T
155 D 155
S
A
E
D
O
G
E
R
D
L
I
I
G
R
A
O
B
T
H
E
T
E
D
R
G
A
F
D
K
C
O
E
S
O
H
T
150 I 150
E
O
M
L
I
R
I
L
B
F
O
W
R
O
D
P
A
E 145 145 D
O
M
O
W
L
E
F
N
)
8
8
D
V
A 140 140
N
(
T
E
E
F
N
I
N
O
I
T 135 135
A
V
E
L
E
Y
C
N
130 130 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
125 125 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 120 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L D E F G L
CROSS SECTION LOCATION I
A
H
R
115 E
D
5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 E
F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH BEAVER BROOK NO. 1 173P 235 235
Y
D 230 R 230
A
A
O
D
R
N
U
E
O
N
I
B
L
Y
K
T
O
N
O
U
R
S
B
O 225 225 R
E
C
E
L
V
I
I
F
R
O
T
I
R
S
P
S
I
T
D 220 220 I
S
O
S
O
I
L
N
F
)
8
8
D
V
A 215 215
N
(
T
E
E
F
N
I
N
O
I
T 210 210
A
V
E
L
E
Y
C
N
205 205 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
200 200 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 195 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B B
STREAM BED M
S
E
L
L A L
CROSS SECTION LOCATION I
A
H
R
190 E
D
0 500 1000 1500 2000 2500 3000 E
F STREAM DISTANCE IN FEET ABOVE TOWN OF HOLLIS CORPORATE LIMITS 174P 245 245
240 240
Y
D
U
S
T 235 235 R
E
S
E
L
D
V
I
I
E
L
F
R
I
A
O
T
T
I
E
R
S
D
P
S
F
I
O
T
D
I
T
230 I 230
S
O
M
I
S
O
L
I
L
N
F
)
8
8
D
V
A 225 225
N
(
T
E
E
F
N
I
N
O
I
T 220 220
A
V
E
L
E
Y
C
N
215 215 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
210 210 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 205 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L C L
CROSS SECTION LOCATION I
A
H
R
200 E
D
3000 3500 4000 4500 5000 5500 6000 6500 E
F STREAM DISTANCE IN FEET ABOVE TOWN OF HOLLIS CORPORATE LIMITS 175P 660 660
1% ANNUAL CHANCE BACKWATER EFFECTS FROM BEARDS BROOK
650 650
K
O
O
R
B
S
S
640 D 640
E
R
H
L
A
C
I
E
N
B
F
A
H
O
T
R
I
R
B
W
P
E
H
C
T
D
N
630 E 630
R
O
U
O
L
O
F
N
N
L
O
F
C
)
8
8
D
V
A 620 620
N
(
T
E
E
F
N
I
N
O
I
T 610 610
A
V
E
L
E
Y
C
N
E
600 600
G
H
A
N
T
,
N
Y
E
T
)
M
S
N
E
N
G
U 590 590 O
I
A
O
T
LEGEND N
C
C
I
A
D
0.2% ANNUAL CHANCE FLOOD I
M
H
S
I
Y
G
1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
E 580 L
L
R
G
A
R
10% ANNUAL CHANCE FLOOD (
O
E
B
STREAM BED M
S
E
L
A B L CROSS SECTION LOCATION L
I
A
R
H
570 E
D
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH BEARDS BROOK 176P 720 720
710 710
700 700 S
E
H
L
C
I
N
F
A
O
R
R
B
P
H
T 690 690 D
R
O
O
O
N
L
F
)
8
8
E
G
D
D
V
I
A 680 680
R
N
B
(
1
T
3
E
E
E
F
T
U
N
I
O
R
N
O
E
I
T T 670 670
A
A
T
V
S
E
L
E
Y
C
N
E
660 660
G
H
A
N
T
,
N
Y D E
T
)
M
S
N
E
N
G
U 650 650 O
I
A
O
T
LEGEND N
C
C
I
A
D
0.2% ANNUAL CHANCE FLOOD I
M
H
S
I
Y
G
1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
E 640 L
L
R
G
A
R
10% ANNUAL CHANCE FLOOD (
O
E
B
STREAM BED M
S
E
L
C L CROSS SECTION LOCATION L
I
A
R
H
630 E
D
0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH BEARDS BROOK 177P 760 760
750 750
G
N
I
S
S
O
R
C
E
P
I
P 740 740 S
E
H
L
C
I
N
F
A
O
R
R
B
P
H
T 730 730 D
R
O
O
O
N
L
F
)
8
Y
8
D
D
U
V
T
A 720 720
S
N
(
D
E
T
L
E
I
E
A
F
T
E
N
I
D
N
F
O
O
I
T
T
710 I 710
A
V
M
I
E
L
L
E
Y
C
N
E
700 700
G
H
A
N
T
,
N
Y
E
T
)
M
S
N
E
N
G
U 690 690 O
I
A
O
T
LEGEND N
C
C
I
A
D
0.2% ANNUAL CHANCE FLOOD I
M
H
S
I
Y
G
1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
E 680 L
L
R
G
A
R
10% ANNUAL CHANCE FLOOD (
O
E
B
STREAM BED M
S
E
L
E F L CROSS SECTION LOCATION L
I
A
R
H
670 E
D
1.20 1.25 1.30 1.35 1.40 1.45 1.50 1.55 E
F STREAM DISTANCE IN MILES ABOVE CONFLUENCE WITH BEARDS BROOK 178P 980 980
Y
1
A
3
D
W
A
D
H
M
960 O 960
N
G
A
I
R
A
D
H
R
H
9
D
E
C
E
S
N
C
N
V
E
O R
I
A
T
E
P
I
R
R
U
P
S
B
O
L
K
N
R
E
H
I
E
T
L
O
E
S
T
R
K
T
O
940 S 940
O
N
A
E
C
N
T
A
L
S
R
O
I
F
O
F
T
O
N
R
O
P
C
H 920 920 D
C
O
N
O
A
L
R
F
B
)
8
H
8
T
D
R
V
O
A 900 900
N
N
(
T
E
E
F
N
I
N
O
I
T 880 880
A
V
E
L
E
Y
C
N
860 860 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
840 840 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 820 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
C B
STREAM BED M
S
E
L
L A B D E F G H I J L
CROSS SECTION LOCATION I
A
H
R
800 E
D
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 E
F STREAM DISTANCE IN FEET ABOVE STEELS POND DAM 179P D
D
A
A
O
O
R
R
R
L
M
E
L
I
R
V
A
I
M
F
R
N
Y
E
T
K
R
R
E
O
E
V
S
B
O
O 1080 I 1080
E
L
L
C
L
O
I
O
F
T
O
N
R
O
P
C
H 1060 1060 D
C
O
N
O
A
L
R
F
B
)
8
H
8
T
D
R
V
O
A 1040 1040
N
N
(
T
E
E
F
N
I
N THE 2% ANNUAL CHANCE FLOOD PROFILE IS TOO CLOSE
O I TO THE 1% ANNUAL CHANCE FLOOD PROFILE T 1020 1020 A TO BE SHOWN SEPARATELY
V
E
L
E
Y
C
N
1000 1000 E
G
H
A
N R
T
,
N
Y
E
Q S T T
)
M
N
S
E
N
U
G
980 980 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 960 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L K L M N O P L
CROSS SECTION LOCATION I
A
H
R
940 E
D
11000 12000 13000 14000 15000 16000 17000 18000 19000 20000 21000 22000 23000 24000 E
F STREAM DISTANCE IN FEET ABOVE STEELS POND DAM 180P Y
R
A
D
R
N
E
U
V
O
I
B
R
Y
T
K
N
O
U
S
O 1140 1140 O
E
C
C
L
O
I
O
F
T
O
N
R
O
P
C
H 1120 1120 D
C
O
N
O
A
L
R
F
B
)
8
H
8
T
D
R
V
O
A 1100 1100
N
N
(
T
E
E
F
N
I
N
O
I
T 1080 1080
A
V
E
L
E
Y
C
N
1060 1060 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
1040 1040 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 1020 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
STREAM BED M
S
E
L
L U V W X Y Z L
CROSS SECTION LOCATION I
A
H
R
1000 E
D
24000 25000 26000 27000 28000 29000 30000 31000 32000 33000 E
F STREAM DISTANCE IN FEET ABOVE STEELS POND DAM 181P 1% ANNUAL CHANCE FLOOD BACKWATER FROM MERRIMACK RIVER
R
E
R
V
E
I
V
I
E
R
R
K
R
I
E
G
P
G
V
N
O
I
O
R
U
R
S
U
U
Q
K
T
E Q
T
A
C
E
T
L
A
E
T
A
I
A
T
R
T
M
C
E
T F
I
A
S
R
S
R
I
E
O
C
R
P
D
V
E
S
R
E
N
H
I
M
.
T
O
P
I
P
E
C
T
W
E
K
A
L
S
D
E
C
E
I
H
C
T R
O
N
N
E
U
E
N
O
D
O
G
E
A
L
M
R
R
E
H
F
F
V
I
C
)
D
8
H
8
T
D
R
V
A 150 150
O
N
(
N
T
E
E
F
N
I
N
O
I
T 140 140
A
V
E
L
E
Y
C
N
130 130 E
G
H
A
N
T
,
N
Y
E
T
)
M
N
S
E
N
U
G
120 120 O
I
A
O
T LEGEND N
C
C
I
A
0.2% ANNUAL CHANCE FLOOD D
H
M
S
I
G
Y NORMAL WATER SURFACE 1% ANNUAL CHANCE FLOOD R
C
U
U
J
N
2% ANNUAL CHANCE FLOOD O
L
E
L 110 R
G
A
(
O 10% ANNUAL CHANCE FLOOD R
E
B
NORMAL WATER SURFACE M
S
E
L
L
L
CROSS SECTION LOCATION I
A
H
R
100 E
D
0 264 528 792 1056 E
F STREAM DISTANCE IN FEET ABOVE MOUTH AT MERRIMACK RIVER 182P