St. John 

River

River

Fish

1

161

161

MARKET STREET

Fort Kent

1

AVENUE DES ÉRABLES

New Brunswick Maine

CANADA

UNITED STATES

01014000

01013500

11

11

W MAIN STREET

International

Bridge

161

BRIDGE ST

MILLS RD

Old USGS

streamgage

UNCERTAINTIES AND LIMITATIONS REGARDING USE OF FLOOD-INUNDATION MAPS

The flood boundaries shown were estimated based on gage heights at USGS streamgages 01014000 and 01013500 on the St. John and Fish Rivers in Fort Kent, Maine. Water-surface elevations along the St. John River from 1,000 ft upstream from the International Bridge to 5,000 ft downstream from the International 

Bridge and the Fish River from Mills Road to its confluence with the St. John River, were estimated by steady-state hydraulic modeling, assuming unobstructed flow, and using discharges and hydrologic conditions anticipated at those streamgages. The hydraulic model reflects the land-cover characteristics and any 

bridge, dam, levee, or other hydraulic structures existing in August, 2010. Unique meteorological factors (timing and distribution of storm) during a flood may cause actual discharges to vary from those modeled and lead to deviations in the water-surface elevations and inundation boundaries shown here. Additional 

areas may be flooded due to unanticipated backwater from major tributaries along the main stem or from localized debris- or ice-jams. The flood inundation boundaries depicted on this map are based on a digital elevation model. Inundated areas shown should not be used for navigation, regulatory, permitting, or other 

legal purposes. Although USGS intends to make these data available 24 hours a day, seven days a week, delivery of data and products through the Internet is not guaranteed. The USGS provides these maps as a quick reference, emergency planning tool but assumes no legal liability or responsibility for any direct, 

indirect, incidental, consequential, special or exemplary damages or lost profit resulting from the use or misuse of this information.

If this series of flood inundation maps will be used in conjunction with National Weather Service (NWS) river forecasts, the user should be aware of additional uncertainties which may be inherent or factored into NWS forecast procedures. The NWS uses river forecast models to estimate the quantity and timing of water 

flowing through selected river reaches in the United States. These forecast models (1) estimate the amount of runoff generated by a precipitation event, (2) compute how the water will move downstream, and (3) predict the water-surface elevation and streamflow for the river at a given location (AHPS forecast point) 

throughout the forecast period (every six hours over 3 to 5 days). For more information on AHPS forecasts, please see: http://water.weather.gov/ahps/pcpn_and_river_forecasting.pdf 

MAINE

Study

area

.5 0 .5 KILOMETER

.5 0 .5 MILE

SCALE 1:17 500

NORTH AMERICAN VERTICAL DATUM 1988 (NAVD88)

Flood-Inundation Map for Fort Kent, Maine

Corresponding to a Gage Height of 21.6 Feet at U.S. Geological Survey

Streamgage 01014000 on the St. John River and a Gage Height of 9.3 Feet

at U.S. Geological Survey Streamgage 01013500 on the Fish River

Pamela J. Lombard

2011

U.S. Department of the Interior

U.S. Geological Survey

Prepared in cooperation with the

Federal Emergency Management Agency, Region 1 

Scientific Investigations Map 3157

Sheet 2 of 29

Pamphlet accompanies map

Projection: Transverse Mercator

North American Datum of 1983 (NAD83)

Orthography from Global Relief Technologies, 2008

National boundary from U.S. Geological Survey National Map

available at http://viewer.nationalmap.gov/viewer.

Position of boundary on this map is approximate and

for informational purposes only.

Suggested citation:

Lombard, P.J., 2011, Flood-inundation maps for the St. John and Fish Rivers in 

Fort Kent, Maine: U.S. Geological Survey Scientific Investigations Map 3157, 

p. pamphlet, 29 sheets, scale 1:17:500.

Publishing support provided by:

Denver Publishing Service Center

Manuscript approved for publication March 30, 2011

For more information concerning

this publication, contact:

Director, Maine Water Science Center

U.S. Geological Survey

196 Whitten Road

Augusta, ME 04330

(207)622–8201

Or visit the Maine Water Science Center Web site at:

http://me.water.usgs.gov/ 

This report is available at: http://pubs.usgs.gov/sim/3157/. 

Any use of trade, product, or firm names is

for descriptive purposes only and does not

imply endorsement by the U.S. Government.

This and other USGS information products are available at:

http://store.usgs.gov/ 

U.S. Geological Survey, Box 25286

Denver Federal Center, Denver, CO 80225

To learn about the USGS and its information products visit

http://www.usgs.gov/ 

1-888-ASK-USGS

EXPLANATION

161

1

USGS streamgage

and number

Old USGS streamgage

(no longer in use)

Limits of study area

U.S. route marker

State route marker

National boundary

Flood-inundation area

Area protected by levee

Levee

Temporary levee

Flow arrow—Indicates

direction of water flow

01014000

68°37’30”

47°14’30”

47°14’00”

47°15’00”

47°15’30”

47°16’00”

47°16’30”

47°17’00”

68°37’00” 68°36’30” 68°36’00” 68°35’30” 68°35’00” 68°34’30”

68°37’30” 68°37’00” 68°36’30” 68°36’00” 68°35’30” 68°35’00” 68°34’30”

47°16’30”

47°17’00”

47°16’00”

47°15’30”

47°15’00”

47°14’30”

8