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MOUND FORMATION AT CULVERT OUTLETS 1
Author(s) -
Abt Steven R.,
Ruff James F.,
Mendoza Cesar
Publication year - 1983
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1983.tb02772.x
Subject(s) - tailwater , culvert , geology , water discharge , geotechnical engineering , hydrology (agriculture)
One component of the local scour process near a culvert outlet is the formation of an aggraded mound downstream of the scour area. This investigation presents a series of observations and empirical relationships depicting the formation, growth, and estimated maximum dimensions of a mound in a uniformly graded sand material due to clear water scour. The maximum dimensions of the mound were correlated to the discharge intensity (Qg ‐0.5 D ‐2.5 ), the maximum dimensions of the scour hole, time, and tailwater elevation. The concept of an approximate area of scour influence was developed relating the mound width, scour hole length, and mound length as a function of the culvert diameter and discharge intensity.