Sediment collection devices (SCDs) which can be used to collect sediment
from sediment-bearing liquid, for example runoff from construction sites,
and which have improved durability, particularly when wheeled vehicles
pass over them. The SCDs include a horizontal location member; and a
generally vertical member comprising (1) a filter which has relatively
small apertures therethrough, and (2) threshold and outflow members each
of which have relatively large apertures therethrough and which together
provide a sediment control chamber (SCC) between them. The height of the
SCC is at least 1.5 times its width; and/or the SCC is shaped so that a
vehicle wheel approaching the SCD contacts the SCD at a defined height
and angle; and/or one or both of the threshold member and the outflow
member has a bending or stiffening line such that different parts of the
SCD respond differently to bending forces. Precursors and methods for
making such SCDs are described.