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Channel stability downstream from a dam assessed using aerial photographs and stream-gage information

Journal of the American Water Resources Association

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Abstract

The stability of the Neosho River channel downstream from John Redmond Dam, in southeast Kansas, was investigated using multiple-date aerial photographs and stream-gage information. Bankfull channel width was used as the primary indicator variable to assess pre- and post-dam channel change. Five six-mile river reaches and four stream gages were used in the analysis. Results indicated that, aside from some localized channel widening, the overall channel change has been minor with little post-dam change in bankfull channel width. The lack of a pronounced postdam channel change may be attributed to a substantial reduction in the magnitude of the post-dam annual peak discharges in combination with the resistance to erosion of the bed and bank materials. Also, the channel may have been overwidened by a series of large floods that predated construction of the dam, including one with an estimated 500-year recurrence interval.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Channel stability downstream from a dam assessed using aerial photographs and stream-gage information
Series title:
Journal of the American Water Resources Association
Volume
36
Issue:
3
Year Published:
2000
Language:
English
Publisher:
American Water Resources Assoc
Publisher location:
Herndon, VA, United States
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of the American Water Resources Association
First page:
633
Last page:
645