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160160
LANELANE
TAGGARTTAGGART
DR
DR
WE
BS
TE
RW
EB
ST
ER
DANDAN
1% ANNUAL CHANCE FLOODDISCHARGE CONTAINED IN CULVERT 1% ANNUAL CHANCE FLOODDISCHARGE CONTAINED IN CULVERT
RO
YA
LR
OY
AL
DamDam
134
134
SWIFTSWIFT
AA
LIMIT OF DETAILED STUDY
LIMIT OF DETAILED STUDY
ZONE AEZONE AE
RO
AD
RO
AD
CityCityof Nashuaof Nashua
3300973300971% ANNUAL CHANCE FLOODDISCHARGE CONTAINED IN CULVERT 1% ANNUAL CHANCE FLOODDISCHARGE CONTAINED IN CULVERT
ROADROAD
FLOOD HAZARD INFORMATION IS NOTSHOWN ON THIS MAP IN AREAS
OUTSIDE OF HILLSBOROUGH COUNTY
FLOOD HAZARD INFORMATION IS NOTSHOWN ON THIS MAP IN AREAS
OUTSIDE OF HILLSBOROUGH COUNTY
144
144
DA
NIE
LD
AN
IEL
165165
NEWC
ASTLE
NEWC
ASTLE
LIMIT OFFLOODWAY
LIMIT OFFLOODWAY
SPENCERSPENCER
ZONE AEZONE AE
STRAWBERRYSTRAWBERRY
142
142
111111
HW
YH
WY
VIL
LA W
AY
VIL
LA W
AY
DANFORTH
DANFORTH
114114
ZONE XZONE X
BROOKBROOKDRDR
ZONE AEZONE AE
TARATARA
Merrimack RiverMerrimack River
ROADROAD
LAN
ELA
NE
TownTownof Hudsonof Hudson
330092330092
CC
NE
WC
AS
TL
EN
EW
CA
ST
LE
CO
LE
RID
GE
CO
LE
RID
GE
WH
ITM
AN
WH
ITM
AN
DR
DR
TAGGARTTAGGART
CHANCHAN
110110
SpitSpitBrookBrook
POISSONPOISSON
171171
BANKBANK
ZONE XZONE X
33
ZONE AZONE A
DR
DR
ZONE XZONE X
ZONEZONEXX
ZONE AZONE A
SILVERSILVER
DRDR
BLA
CK
BLA
CK
BROOK
BROOK
CITY OF NASHUA
MASSACHUSETTS
CITY OF NASHUA
MASSACHUSETTS
DRDR
E DE SILVIO DR
E DE SILVIO DR
DRDR
145
145
OAK
OAK DRDR
CH
AU
CE
RC
HA
UC
ER
ROADROAD
162162
CityCityof Nashuaof Nashua
330097330097
RO
AD
RO
AD
SPITSPIT
ZONE AZONE A
BB
ZONE AEZONE AE
BO
ST
ON
AN
D M
AIN
E R
AIL
RO
AD
BO
ST
ON
AN
D M
AIN
E R
AIL
RO
AD
ZONE XZONE X
ROADROAD
OA
KO
AK
CR
ES
TC
RE
ST
STST
SOUTHGATE DR SOUTHGATE DR
DRDR
ZONE XZONE X
AA
CASCOCASCO
AA
ZONE AZONE A
LIMIT OFFLOODWAY
LIMIT OFFLOODWAY
ZONE AZONE A
Merrimack RiverMerrimack River
SPITSPIT
BLVDBLVD
ZONEZONEXX
ZONE AZONE A
THOREAU
THOREAU
ZONE AEZONE AE
SPENCERSPENCER
DRDR
HIL
LH
ILL
AVEAVE
ZONE XZONE X
ZONE XZONE X
FRE
DE
RIC
K E
EV
ER
ETT
TP
KE
FRE
DE
RIC
K E
EV
ER
ETT
TP
KE
RO
AD
RO
AD
DRDR
CC
DR
DR 137137
PHEASANT
PHEASANTZONE XZONE X
ZONE AZONE A
161161
ZONE XZONE X
DRDR
70000 FT
75000 FT
1040000 FT 1045000 FT
298
000m E
299
000m E
300
000m E
4730
000m N
4731
000m N
4732
000m N
71°28'07.50"
42°43'07.50"
71°28'07.50"
42°41'15.00"71°26'15.00"
42°41'15.00"
71°26'15.00"
42°43'07.50"
JOIN
S P
AN
EL
065
3
JOINS PANEL 0652
JOIN
S P
AN
EL
065
8
1% annual chance floodplain boundary0.2% annual chance floodplain boundaryFloodway boundaryZone D boundary
LEGENDSPECIAL FLOOD HAZARD AREAS (SFHAs) SUBJECT TOINUNDATION BY THE 1% ANNUAL CHANCE FLOOD
The 1% annual chance flood (100-year flood), also known as the base flood, is the floodthat has a 1% chance of being equaled or exceeded in any given year. The SpecialFlood Hazard Area is the area subject to flooding by the 1% annual chance flood. Areasof Special Flood Hazard include Zones A, AE, AH, AO, AR, A99, V and VE. The BaseFlood Elevation is the water-surface elevation of the 1% annual chance flood.
ZONE A No Base Flood Elevations determined.
ZONE AE Base Flood Elevations determined.
ZONE AH Flood depths of 1 to 3 feet (usually areas of ponding); Base FloodElevations determined.
ZONE AO Flood depths of 1 to 3 feet (usually sheet flow on sloping terrain);average depths determined. For areas of alluvial fan flooding, velocitiesalso determined.
ZONE AR Special Flood Hazard Area formerly protected from the 1% annualchance flood by a flood control system that was subsequentlydecertified. Zone AR indicates that the former flood control system isbeing restored to provide protection from the 1% annual chance orgreater flood.
ZONE A99 Area to be protected from 1% annual chance flood by a Federalflood protection system under construction; no Base Flood Elevationsdetermined.
ZONE V Coastal flood zone with velocity hazard (wave action); no Base FloodElevations determined.
ZONE VE Coastal flood zone with velocity hazard (wave action); Base FloodElevations determined.
FLOODWAY AREAS IN ZONE AE
The floodway is the channel of a stream plus any adjacent floodplain areas that must bekept free of encroachment so that the 1% annual chance flood can be carried withoutsubstantial increases in flood heights.
OTHER FLOOD AREAS
ZONE X Areas of 0.2% annual chance flood; areas of 1% annual chance floodwith average depths of less than 1 foot or with drainage areas less than1 square mile; and areas protected by levees from 1% annual chanceflood.
OTHER AREAS
ZONE X Areas determined to be outside the 0.2% annual chance floodplain.
ZONE D Areas in which flood hazards are undetermined, but possible.
COASTAL BARRIER RESOURCES SYSTEM (CBRS) AREAS
OTHERWISE PROTECTED AREAS (OPAs)
CBRS areas and OPAs are normally located within or adjacent to Special Flood Hazard Areas.
CBRS and OPA boundary
Boundary dividing Special Flood Hazard Areas of differentBase Flood Elevations, flood depths or flood velocities.
Base Flood Elevation line and value; elevation in feet*~ ~~ ~~ ~~ ~~ ~513
(EL 987) Base Flood Elevation value where uniform within zone;elevation in feet*
* Referenced to the North American Vertical Datum of 1988 (NAVD 88)
A A Cross section line
- - - - - - - - - Transect line23 23
97°07'30", 32°22'30"Geographic coordinates referenced to the North AmericanDatum of 1983 (NAD 83)
4275000mN 1000-meter Universal Transverse Mercator grid ticks, zone 19
6000000 FT 5000-foot grid values: New Hampshire State Plane coordinatesystem, (FIPSZONE 2800), Transverse Mercator
DX5510 Bench mark (see explanation in Notes to Users section ofthis FIRM panel)
M1.5 River Mile
MAP REPOSITORIES
To determine if flood insurance is available in this community, contact your insuranceagent or call the National Flood Insurance Program at 1- 800- 638- 6620.
Refer to Map Repositories list on Map Index
EFFECTIVE DATE OF COUNTYWIDEFLOOD INSURANCE RATE MAP
September 25, 2009EFFECTIVE DATE(S) OF REVISION(S) TO THIS PANEL
For community map revision history prior to countywide mapping, refer to the CommunityMap History table located in the Flood Insurance Study report for this jurisdiction.
MAP SCALE 1" = 500'250 0 500 1000
FEET
150 0 150 300METERS
PANEL 0654D
NATI
ONAL
FLO
OD IN
SURA
NCE
PROG
RAM
NFIPFIRMFLOOD INSURANCE RATE MAP
Notice to User: The shown below should beused when placing map orders; the Community Number shownabove should be used on insurance applications for the subjectcommunity.
Map Number
CONTAINS:
COMMUNITY NUMBER PANEL SUFFIX
MAP NUMBER33011C0654D
EFFECTIVE DATESEPTEMBER 25, 2009
Federal Emergency Management Agency
HILLSBOROUGH COUNTY,
NEW HAMPSHIRE(ALL JURISDICTIONS)
HUDSON, TOWN OF 330092 0654 DNASHUA, CITY OF 330097 0654 D
PANEL 654 OF 701(SEE MAP INDEX FOR FIRM PANEL LAYOUT)
NOTES TO USERSThis map is for use in administering the National Flood Insurance Program. Itdoes not necessarily identify all areas subject to flooding, particularly fromlocal
community map repositorydrainage sources of small size. The shouldbeconsulted for possible updated or additional flood hazard information.
Base Flood ElevationsTo obtain more detailed information in areas where floodways(BFEs) and/or have been determined, users are encouraged toconsult
the Flood Profiles and Floodway Data and/or Summary of Stillwater Elevationstables contained within the Flood Insurance Study (FIS) report that accompaniesthis FIRM. Users should be aware that BFEs shown on the FIRM representrounded whole- foot elevations. These BFEs are intended for flood insurancerating purposes only and should not be used as the sole source of floodelevation information. Accordingly, flood elevation data presented in the FISreport should be utilized in conjunction with the FIRM for purposesofconstruction and/or floodplain management.
Coastal Base Flood Elevations shown on this map apply only landwardNorth American Vertical Datum of 1988 (NAVD 88).of 0.0' Users of this
FIRM should be aware that coastal flood elevations are also provided in theSummary of Stillwater Elevations table in the Flood Insurance Study reportfor this jurisdiction. Elevations shown in the Summary of Stillwater Elevationstable should be used for construction and/or floodplain management purposeswhen they are higher than the elevations shown on this FIRM.
floodwaysBoundaries of the were computed at cross sections and interpolatedbetween cross sections. The floodways were based on hydraulic considerationswith regard to requirements of the National Flood Insurance Program. Floodwaywidths and other pertinent floodway data are provided in the Flood InsuranceStudy report for this jurisdiction.
Certain areas not in Special Flood Hazard Areas may be protected by floodcontrol structures. Refer to Section 2.4 "Flood Protection Measures" ofthe Flood Insurance Study report for information on flood control structuresfor this jurisdiction.
projectionThe used in the preparation of this map was New Hampshire Statehorizontal datumPlane (FIPSZONE 2800). The was NAD83,
GRS1980 spheroid. Differences in datum, spheroid, projection or State Planezones used in the production of FIRMs for adjacent jurisdictions may result inslight positional differences in map features across jurisdiction boundaries.These differences do not affect the accuracy of the FIRM.
Flood elevations on this map are referenced to the North American VerticalDatum of 1988. These flood elevations must be compared to structure and
vertical datum.ground elevations referenced to the same For informationregarding conversion between the National Geodetic Vertical Datum of 1929and the North American Vertical Datum of 1988, visit the National Geodetic
http://www.ngs.noaa.gov/Survey website at or contact the National GeodeticSurvey at the following address:
NGS Information ServicesNOAA, N/NGS12National Geodetic SurveySSMC- 3, #92021315 East- West HighwaySilver Spring, MD 20910- 3282
To obtain current elevation, description, and/or location information for bench marksshown on this map, please contact the Information Services Branch of the
(301) 713- 3242,National Geodetic Survey at or visit its website athttp://www.ngs.noaa.gov/.
Base map information shown on this FIRM was derived from U.S. Geological SurveyDigital Orthophoto Quadrangles produced at a scale of 1:12,000 from photographydated 1998 or later. These images were recast by NH GRANIT onto the NH StatePlane coordinate system.
This map reflects more detailed and up- to- date stream channel configurationsthan those shown on the previous FIRM for this jurisdiction. The floodplainsand floodways that were transferred from the previous FIRM may have beenadjusted to conform to these new stream channel configurations. As aresult, the Flood Profiles and Floodway Data tables in the Flood InsuranceStudy report (which contains authoritative hydraulic data) may reflect streamchannel distances that differ from what is shown on this map.
Corporate limits shown on this map are based on the best data availableat the time of publication. Because changes due to annexations or de- annexationsmay have occurred after this map was published, map users should contactappropriate community officials to verify current corporate limit locations.
Map IndexPlease refer to the separately printed for an overview map of thecounty showing the layout of map panels; community map repository addresses;and a Listing of Communities table containing National Flood Insurance Programdates for each community as well as a listing of the panels on which eachcommunity is located.
Contact the FEMA Map Service Center at 1- 800- 358- 9616 for information onavailable products associated with this FIRM. Available products may includepreviously issued Letters of Map Change, a Flood Insurance Study report,and/or digital versions of this map. The FEMA Map Service Center may also bereached by Fax at 1- 800- 358- 9620 and its website at http://www.msc.fema.gov/.
If you have questions about this map or questions concerning the NationalFlood Insurance Program in general, please call1- 877- FEMA MAP(1- 877- 336- 2627)or visit the FEMA website at http://www.fema.gov/.