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Channel adjustments following two dam removals in Wisconsin

Publication ,  Journal Article
Doyle, MW; Stanley, EH; Harbor, JM
Published in: Water Resources Research
January 1, 2003

We examined channel response following the removal of low-head dams on two low-gradient, fine- to coarse-grained rivers in southern Wisconsin. Following removal, channels eroded large quantities of fine sediment, resulting in deposition 3-5 km downstream. At one site (Baraboo River), upstream changes were rapid and included bed degradation, minimal bank erosion, and sediment deposition on channel margins and new floodplain. Sand was transported through the former impoundment and temporarily deposited downstream. At the second site (Koshkonong River), head-cut migration governed channel adjustments. A deep, narrow channel formed downstream of the head-cut, with negligible changes upstream of the head-cut. Fluvial changes were summarized in a conceptual channel evolution model that highlighted (1) similarities between adjustments associated with dam removal and other events that lower channel base-level, and (2) the role of reservoir sediment characteristics (particle size, cohesion) in controlling the rates and mechanisms of sediment movement and channel adjustment.

Duke Scholars

Published In

Water Resources Research

DOI

ISSN

0043-1397

Publication Date

January 1, 2003

Volume

39

Issue

1

Related Subject Headings

  • Environmental Engineering
  • 0907 Environmental Engineering
  • 0905 Civil Engineering
  • 0406 Physical Geography and Environmental Geoscience
 

Citation

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Doyle, M. W., Stanley, E. H., & Harbor, J. M. (2003). Channel adjustments following two dam removals in Wisconsin. Water Resources Research, 39(1). https://doi.org/10.1029/2002WR001714
Doyle, M. W., E. H. Stanley, and J. M. Harbor. “Channel adjustments following two dam removals in Wisconsin.” Water Resources Research 39, no. 1 (January 1, 2003). https://doi.org/10.1029/2002WR001714.
Doyle MW, Stanley EH, Harbor JM. Channel adjustments following two dam removals in Wisconsin. Water Resources Research. 2003 Jan 1;39(1).
Doyle, M. W., et al. “Channel adjustments following two dam removals in Wisconsin.” Water Resources Research, vol. 39, no. 1, Jan. 2003. Scopus, doi:10.1029/2002WR001714.
Doyle MW, Stanley EH, Harbor JM. Channel adjustments following two dam removals in Wisconsin. Water Resources Research. 2003 Jan 1;39(1).
Journal cover image

Published In

Water Resources Research

DOI

ISSN

0043-1397

Publication Date

January 1, 2003

Volume

39

Issue

1

Related Subject Headings

  • Environmental Engineering
  • 0907 Environmental Engineering
  • 0905 Civil Engineering
  • 0406 Physical Geography and Environmental Geoscience