Amount of sediment being moved by a stream.
The total sediment outflow from a watershed or a drainage
area at a point of reference and in a specified time period. This
outflow is equal to the sediment discharge from the drainage
The slow movement of water through small cracks and pores
of the bank material.
See unit shear force.
A relatively shallow submerged bank or bar in a body of water.
(a) A structure built under water, across the deep pools of a
stream with the aim of changing the depth of the stream; (b) A
low structure built across an effluent stream, diversion channel
or outlet to reduce flow or prevent flow until the main stream
stage reaches the crest of the structure.
A particle whose diameter is in the range of 0.004 to 0.062
The ratio between the thalweg length and the valley length of a
slope (of channel
Fall per unit length along the channel centerline or thalweg.
Any measure such as riprap, paving, vegetation, revetment,
brush or other material intended to protect a slope from
erosion, slipping or caving, or to withstand external hydraulic
Sliding or collapse of overlying material; same ultimate effect
as caving, but usually occurs when a bank or an underlying
stratum is saturated.
A method of estimating unmeasured flood discharges in a
uniform channel reach using observed high-water levels.
A sudden slip or collapse of a bank, generally in the vertical
direction and confined to a short distance, probably due to the
substratum being washed out or having become unable to bear
the weight above it.
A designed mixture of soil and Portland cement compacted at
a proper water content to form a blanket or structure that can
Progressive reduction of size (or weight) of particles of the
sediment load carried down a stream.