Slit Dam Design for Debris Flow Mitigation
Publication: Journal of Hydraulic Engineering
Volume 115, Issue 9
Abstract
Debris flows cause the destruction of engineering facilities including buildings, roads, and culverts. A slit dam may be used to control small volumes of debris that can damage or destroy small watershed infrastructure, such as culverts. The height and spacing of the dam posts and the location of the dam are the primary design factors. The posts may be arranged in single or double rows with the spacing of the slits a function of the culvert diameter being protected. The height of the dam is a function of the slope on which it is placed. The advantages of slit dams include the simplicity of design and installation and the relatively low cost. They are also stronger than other baffle systems and debris fences.
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References
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Baldwin II, J. E., Donley, H. F., and Howard, T. R. (1987). “On debris flow/avalanche mitigation and control, San Francisco Bay area, California.” Debris flows/avalanches: process, recognition, and mitigation, J. E. Costa and G. F. Wieczorek, eds. Geological Society of America Reviews in Engineering Geology, Vol. 7, 223–236.
2.
Johnson, A. M. (1984). “Debris flow.” Slope instability, D. Brunsden and D. B. Prior, eds., Wiley and Sons, New York, N.Y., 257–361.
3.
Hollingsworth, R., and Kovacs, G. S. (1981). “Soil slumps and debris flows: prediction and protection.” Bull. Assoc. Engrg. Geologists, 18(1), 17–28.
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Hungr, O., Morgan, G. C., VanDine, D. F., and Lister, D. R. (1987). “Debris flow defenses in British Columbia.” Debris flows/avalanches: process, recognition, and mitigation, Geological Society of America Reviews in Engineering Geology, Vol. 7, 201–222.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 115 • Issue 9 • September 1989
Pages: 1293 - 1296
Copyright
Copyright © 1989 ASCE.
History
Published online: Sep 1, 1989
Published in print: Sep 1989
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