Flood-Inundation Map for Hattiesburg, Mississippi, Corresponding to a Gage Height of 27.0 Feet and an Elevation 

of 145.18 Feet (NAVD 88) at U.S. Geological Survey Streamgage Leaf River at Hattiesburg, Mississippi (02473000)

By

John B. Storm

2014

Scientific Investigations Map 3300

Sheet 6 of 13

Pamphlet accompanies map

Hattiesburg

Petal

42

42

11

11

49

11

11

02473000

02472980

SOUTHERN RAILROAD

E HARDY STREET CARTERVILLE ROAD

OLD RICHTON ROAD

GLENDALE AVENUE

HARDY STREET

W 7TH STREET

W PINE STREET

EVELYN GANDY PARKWAY

NEW RICHTON ROAD

UNCERTAINTIES AND LIMITATIONS FOR USE OF FLOOD-INUNDATION MAPS

Although the flood-inundation maps represent the boundaries of inundated areas with a distinct line, some uncertainty is 

associated with these maps. The flood boundaries shown were estimated based on water stages (water-surface elevations) 

and streamflows at selected USGS streamgages. Water-surface elevations along the stream reaches were estimated by 

steady-state hydraulic modeling, assuming unobstructed flow, and by using streamflows and hydrologic conditions 

anticipated at the USGS streamgage(s). The hydraulic model reflects the land-cover characteristics and any bridge, dam, 

levee, or other hydraulic structures existing as of December 2011. Unique meteorological factors (timing and distribution of 

precipitation) may cause actual streamflows along the modeled reach to vary from those assumed during a flood, which may 

lead to deviations in the water-surface elevations and inundation boundaries shown. Additional areas may be flooded due to 

unanticipated conditions such as changes in the streambed elevation or roughness, backwater into major tributaries along a 

main stem river, or backwater from localized debris or ice jams. The accuracy of the floodwater extent portrayed on these 

maps will vary with the accuracy of the digital elevation model used to simulate the land surface. Additional uncertainties and 

limitations pertinent to this study are described in the document accompanying this set of flood-inundation map sheets.

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 that may be inherent or factored into NWS forecast procedures. The NWS 

uses forecast models to estimate the quantity and timing of water flowing through selected stream reaches in the United 

States. These forecast models (1) estimate the amount of runoff generated by precipitation and snowmelt, (2) simulate the 

movement of floodwater as it proceeds downstream, and (3) predict the flow and stage (water-surface elevation) for the 

stream at a given location (Advanced Hydrologic Prediction Service [AHPS] forecast point) throughout the forecast period 

(every 6 hours and 3 to 5 days out in many locations). For more information on AHPS forecasts, please see: 

http://water.weather.gov/ahps/pcpn_and_river_forecasting.pdf.

DISCLAIMER

Inundated areas shown should 

not be used for navigation, 

regulatory, permitting, or other 

legal purposes. The USGS 

provides these maps “as-is” 

for a quick reference, 

emergency planning tool but 

assumes no legal liability or 

responsibility resulting from 

the use of this information.

0.5 0 0.5 KILOMETER

0.5 0 0.5 MILE

NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88)

U.S. Department of the Interior

U.S. Geological Survey

Suggested citation:

Storm, J.B., 2014, Storm, J.B., 2014, An expanded model—

Flood-inundation maps for the Leaf River at Hattiesburg, 

Mississippi, 2013: U.S. Geological Survey Scientific 

Investigations Map 3300, 13 sheets, 8-p. pamphlet, 

http://dx.doi.org/10.3133/sim3228.

Projection: Transverse Mercator

North American Datum of 1983 (NAD 83)

Orthography from National Agriculture Imagery Program, 2010

Publishing support provided by:

Raleigh Publishing Service Center

Manuscript approved for publication May 21, 2014

For more information concerning

this publication, contact:

Director, Mississippi Water Science Center

U.S. Geological Survey

308 Airport Road South

Jackson, MS 39208-6649

(601) 933-2900

Or visit the Mississippi Water Science Center 

Web site at: http://ms.water.usgs.gov/ 

This report is available at: 

http://dx.doi.org/10.3133/sim3300. 

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/ or 1-888-ASK-USGS

Prepared in cooperation with the

City of Hattiesburg, City of Petal, Forrest County,

Mississippi Department of Homeland Security, Mississippi Emergency Management Agency,

and the Emergency Management District 

89°19' 89°18' 89°17' 89°16' 89°15' 89°14'

89°19' 89°18' 89°17' 89°16' 89°15' 89°14'

31°22'

31°21'

31°20'

31°19'

31°18'

31°22'

31°21'

31°20'

31°19'

31°18'

Prepared in collaboration with the

National Weather Service

http://water.weather.gov/ahps/

pcpn_and_river_forecasting.pdf

MISSISSIPPI

Forrest

County

Study

area

EXPLANATION

USGS streamgage and

 National Weather Service

 forecast site and identifier

USGS streamgage 

 and identifier

Study area boundary

Flood-inundation area

Direction of surface-

 water flow

02473000

Leaf River

Bouie River

Gordon Creek

02472980

City of Hattiesburg 

Wastewater Treatment

Lagoons

ISSN 2329-132X (online)