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A springer is an architectural term for the lowest
A springer is an architectural term for the lowest voussoir
A voussoir () is a wedge-shaped element, typically a stone, which is used in building an arch or vault.
Although each unit in an arch or vault is a voussoir, two units are of distinct functional importance: the keystone and the springer. T ...
on each side of an arch
An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it.
Arches may be synonymous with vau ...
. Since it is the bottom-most element of the arch, it is where the arch support terminates at the respond. It rests on the impost or pier of the arch, that is, the topmost part of the abutment
An abutment is the substructure at the ends of a bridge span or dam supporting its superstructure. Single-span bridges have abutments at each end which provide vertical and lateral support for the span, as well as acting as retaining wal ...
, from which the arch arises.
Notes