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Combined Vegetative-Structural Slope Stabilization

by Donald H. Gray, (A.M.ASCE), Prof. of Civ. Engrg.; Dept. of Civ. Engrg., Univ. of Mich., Ann Arbor, Mich.,
Charles A. White, (A.M.ASCE), Water Resources Control Engr.; State Water Resources Control Board, Sacramento, Calif.,
Andrew T. Leiser, Prof. of Environmental Horticulture; Univ. of Calif., Davis, Calif.,


Serial Information: Civil Engineering—ASCE, 1980, Vol. 50, Issue 1, Pg. 82-85


Document Type: Feature article

Abstract:

Vegetation in partnership with structural measures provides an attractive and cost effective method of stabilizing slopes and combating erosion. An effective approach is to use contour wattling, willow cuttings, or conventional slope plantings in combination with a low breast wall, gabion revetment, or bench structure constructed at the toe of a slope. Another approach is to grow vegetation in the voids of interstices of structural walls or revetments. The role of vegetation in stabilizing slopes is described; criteria and guidelines for successful wattling or revegetation of slopes are also discussed. Examples and cost comparisons are presented of recent vegetative-structural slope treatments used in the Lake Tahoe Region of California.

Subject Headings: Vegetation | Slope stability | Slopes | Walls | Revetments | Benefit cost ratios | Voids

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