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Recent (circa 1998 to 2011) channel-migration rates of selected streams in Indiana

Scientific Investigations Report 2013-5168

Prepared in cooperation with the Indiana Office of Community and Rural Affairs
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Abstract

An investigation was completed to document recent (circa 1998 to 2011) channel-migration rates at 970 meander bends along 38 of the largest streams in Indiana. Data collection was completed by using the Google Earthâ„¢ platform and, for each selected site, identifying two images with capture dates separated by multiple years. Within each image, the position of the meander-bend cutbank was measured relative to a fixed local landscape feature visible in both images, and an average channel-migration rate was calculated at the point of maximum cutbank displacement. From these data it was determined that 65 percent of the measured sites have recently been migrating at a rate less than 1 ft/yr, 75 percent of the sites have been migrating at a rate less than 10 ft/yr, and while some sites are migrating in excess of 20 ft/yr, these occurrences are rare. In addition, it is shown that recent channel-migration activity is not evenly distributed across Indiana. For the stream reaches studied, far northern and much of far southern Indiana are drained by streams that recently have been relatively stationary. At the same time, this study shows that most of the largest streams in west-central Indiana and many of the largest streams in east-central Indiana have shown significant channel-migration activity during the recent past. It is anticipated that these results will support several fluvial-erosion-hazard mitigation activities currently being undertaken in Indiana.

Study Area

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Recent (circa 1998 to 2011) channel-migration rates of selected streams in Indiana
Series title:
Scientific Investigations Report
Series number:
2013-5168
Year Published:
2013
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Indiana Water Science Center
Description:
iv, 37 p.
Time Range Start:
1998-01-01
Time Range End:
2011-12-31
Country:
United States
State:
Indiana
Datum:
North American Datum 1983
Projection:
1983 Universal Transverse Mercator
Scale:
100000
Online Only (Y/N):
Y
Additional Online Files(Y/N):
N